Tag Archives: hydraulic drill

China best Dx-5c CZPT Core Drill Rig Hydraulic Rock Drilling Rig for Sale with Best Sales

Product Description

DX-5C trailer Core Drilling Rig

Main hydraulic pump, valve and motor are all adopted from famous international brands. Batholith is tyre-drawing (with turning device) or steel track loptional),with hydraulic support device, mast adopted hydraulic powered lft/down, which can be folded to store and transport, with touchdown function, hydraulic system adopted sensitive load control, with high-position operation platform and orifice operation platform. Drill head feeding adopts double -speed driving device for the chain of the oil tank, long-range feeding system, single-motor driving, with 2 grades gear-box and hydraulic operated stepless shift gears. Equipped with high supporter and low guider devices, orifice with hydraulic holder.

	Model	DX-5C full hydraulic
Diesel Engine	Model	cummins 6CTA8.3-C195
	Power	145kW
	Speed	1900rpm
Drilling Capacity	BQ	1500m
	NQ	1300m
	HQ	1000m
	PQ	680m
Rotator Capacity	RPM	Two Shifts/ Stepless 0-1145rpm
	Max.Torque	4650N·m
	Hold Diameter	121mm
	Max.Lifting Capacity of Spindle	150kN
	Max.Feeding Power	75kN
Capacity of Main Hoist	Hoisting Force(singlee wire)	77kN
	Steel Wire Diameter	18mm
	Steel Wire Length	60m
Capacity of Steel Wire Hoist	Hoisting Force(singlee wire)	12kN (Bare drum)
	Steel Wire Diameter	6mm
	Steel Wire Length	1500m
Mast	Mast Height	12m
	Mast Adjusting Angle	0°-90°
	Drilling Angle	45°-90°
	Feeding Stroke	3800mm
	Slippage Stroke	1100mm
Other	Weight	10000kg
	Dimensions(L×W×H)	6250×2200×2730mm
	Transport Way	Tyre
Mud Pump	Model	BW250
Foot damp	Clamping Scope	55.5-117.5 mm(standard hole size Φ154mm)

Axle Spindle Types and Installation

Are you looking for a new axle spindle for your vehicle? If so, you’ve come to the right place. Learn more about their types, functions, and installation. After reading this article, you’ll be well on your way to finding your new axle spindle. Axle spindles are essential to your vehicle. There are several types and each has unique characteristics. Here’s how to choose the best 1 for your car.

Dimensions

Axle spindle dimensions are crucial for safe wheel support. This component experiences significant stress and load during bearing mounting and must provide sufficient strength. The axle spindle can be hot-forged or shaped to include an integral shoulder. The shape of the bearing stop region must be abruptly transitioned from a straight to a curved configuration. Dimensions of axle spindle vary with different materials, manufacturing techniques, and applications.
The bearing surfaces of the axle spindle are 1.376 inches across, while the bearing spacer is 1.061 inch across. The axle spindle is 1.376 inches long and includes a cotter pin and nut. Typical axle spindle dimensions are listed below. Some axles may have additional components to reduce their weight, while others may not have any. The number of axles and bearings is also important to consider when determining the dimensions of the axle.
The outside shape of the axle spindle 40 is similar to that of the prior art spindle 10. The outer wheel bearing region 44 is cylindrical with a diameter D 1 and an inner wheel bearing region 46. An axially-separating transition region 48 separates the inner bearing region 46 from the outer wheel bearing region 44. It is important to note that the internal diameter is generally slightly larger than the outer wheel bearing region 46.
Axle spindles can be integrally formed or welded to the housing or central beam. They can also be designed differently depending on the intended function. For example, the trailer axle spindle may have a circular or rectangular cross section. Once again, axle spindles are important for safety and longevity, so it is important to know their dimensions. You can also check online for the dimensions of axle spindles.
Driveshaft

Function

Axle spindles are crucial components of a vehicle’s suspension system. They enable a vehicle to move forward, turn, brake, and accelerate. The axle also supports the wheel bearings. In addition to supporting the wheel hub, the axle spindle connects the arms of each wheel to the chassis. This piece is also known as a steering knuckle. The axle spindle’s job is to provide sufficient strength to support the axle.
The functional elements of an axle spindle are cylindrical and have a transition region and an outer surface with an irregular pattern. They have a first and a second diameter, and are shaped to form the spindle’s beam portion and spindle region. The transition region forms a pivotal connection between the axle and the suspension. It also provides the connection between the axle and the trailer. It allows a vehicle to rotate without causing excessive vibrations.
Axle spindles can be circular in structure and are similar to those of the prior art. They support wheel hub configurations. The first end of a spindle is threaded, while the second end is open. The outer wheel bearing region has an outer surface with a diameter D1, while the inner wheel bearing region 46 has a cylindrical outer surface with a diameter D2. The transition region separates the spindle from the rest of the axle.
The spindle nut retains the wheel hub on the spindle, whereas the spindle nut holds the hub assembly in place. A spindle nut retains the wheel on the spindle. A hub cap protects the locking nut assembly and lubrication area. A hub cap is also a common component of the axle. The hub cap also provides a protective shield for the spindle nut.
Steering axle spindles do not extend to the right of the oil seal. They extend from the steering kunckle, which is pivotally joined to the steering axle beam. Despite the differences in bearing seals, wheel hub mounting means, and brake assemblies, the basic spindle configuration is the same. A spindle consists of 2 axially separated bearing regions, 1 with a larger diameter than the other, with a bearing stop adjacent to the inner bearing region.
Driveshaft

Types

The axle is the basic unit of an automobile, and it includes several components. Among these are bearings, axle housings, and wheel hubs. Bearings and axle housings take on all of the radial loads placed on them during operation. As a result, they are necessary to ensure that a vehicle is able to function at its optimum level. But if you’re not sure what these components are, they can make all the difference in your ride.
Axle type depends on a number of factors, including the amount of force produced. In some cases, the vehicle already has pre-designed axles that come in standard formats, but in other cases, a customer can order a custom-made axle for the specific needs of his vehicle. Customized axles give the vehicle operator greater control over the speed and torque of the wheels. To choose the correct axle type for your vehicle, it’s helpful to know the measurements of the axle.
Axle gear sets and lubrication passages are also different. Reverse-cut gears can’t be used in place of standard cut gears, and vice-versa. The 2 types of axle are compatible, but the spline count of the differential case must match that of the axle. It’s important to remember that a different type of axle may work with a different type of machine tool.
Different axle spindle materials have their own advantages and disadvantages. Some are more durable than others, depending on their load capacity. Disc brake hubs and axle spindles are similar to the non-braking ones, but include a rotor and a caliper yoke. The yoke design on the rotor or caliper spindle is specific for each rotor.
Bearing-type axles are the most durable. They transfer the weight of the vehicle to the axle casing. The axle housing is retained by a flange bolted to the hub, and the axle bearings are secured on the spindle by a large nut. Alternatively, axles with bearings are supported solely on the axle spindle and don’t require a hub. Floating axles are typically better for long-term operation, but may be a limited choice for vehicles.
Driveshaft

Installation

Axle spindle installation involves tightening the axle spindle nut to retain the spacer and bearing cones in position. When properly tightened, the axle spindle nut provides the clamp force required to compress the bearing spacer and bearing cone. Preloading is an important part of axle spindle installation because it optimizes bearing life by limiting the tolerance range of end play. Here are some tips on axle spindle installation.
To start the process, you should remove the axle spindle from the vehicle. If the old spindle is not a bolt-on type, a technician will need to cut the weld that holds the axle spindle in place. Then, he or she would need to thread the new spindle back into place. The axle tube must be threaded to accept the new spindle. Once the axle spindle is properly installed, the technician will need to tighten it to the specified torque.
Once the axle spindle is installed, the technician will continue tightening the nut assembly. To ensure a tight grip, the technician will rotate the outer washer while adjusting the torque level on the axle spindle nut. If the nut is not correctly torqued, it may loosen the axle spindle. In addition, improper torque can cause excessive inboard pressure on the outer nut, which can result in over or under-compression of the bearing cone.
The second axle spindle includes an inboard bearing 54 and an outboard bearing 56. The inboard bearing has an inboard surface that abuts the shoulder 26 of the axle spindle. The outboard bearing 57 is mounted on the axle spindle near its outboard end. A bearing spacer 58 is positioned between the inboard and outboard bearings. The spacer and bearing cone group comprises the bearing cones 54 and 56.
Proper alignment of the new spindle is essential for a secure fit. Taking your trailer to a licensed repair facility for a trailer spindle installation is a good idea, as a poorly installed axle can result in improper wheel tracking and premature tire wear. A licensed trailer repair facility can do this for you without much difficulty. This way, you won’t waste your time or frustration on a DIY trailer axle replacement.

China best Dx-5c CZPT Core Drill Rig Hydraulic Rock Drilling Rig for Sale with Best Sales

China manufacturer DTH Drilling Rig From Integrated Hydraulic DTH Drill Rig with high quality

Product Description

Product Description

portable tractor mounted hydraulic motor drilling rig for water well
Truck trailer mounted water bore well drilling rig is designed to meet the needs of high speed ,high efficiency and high mobility in field drilling.The water bore well drilling rig is reasonable in structure,simple in operation,convenient in maintenance and transportation and can be hoisted without crane after being transported to the working site.Truck trailer mounted water bore well drilling rig is suitable for geological survey exploration ,basic exploration of roads and high-rise buildings,various structural inspection holes on concrete,river embamkments, subgrade grouting hole and direct grouting ,civil water wells and ground temperature central air conditioning.

portable tractor mounted hydraulic motor drilling rig for water well features:
1.Tricycle drilling rigs are multifunction hydraulic spindle rotary drilling rig,can equipped with HWXY160/190/230 models.

2. Vehicle chassis Wuzheng tricycle 7YP-1475D1,the drive system,winch and mud pump and other important accessories installed on the chassis,the layout is reasonable and compact easy to operate.

3.Equipped with BW160 or BW250 mud pump ,high pressure,big flow,it ensures to reach drilling depth and diameter.

4.Drilling rig is self-equipped with mobile devices,drilling rig can moves before and after the host itself to facilitate the operation of the wellhead.

5.Drilling tower is hydraulic landing manual folding tower,easy to operate,safe and convenient.

SPECIFICATION FOR WATER WELL DRILLING RIG
Model	HWXY-160	HWXY-230	HWXY-3
Drilling depth	160m	230m	600m
Drilling diameter	75mm-160mm	75-273mm	75mm-325mm
Drill rod diameter	42mm,50mm	42mm,50mm,60mm	50mm,60mm
Drill angle	90-75°	90-75°	90-75°
Engine power	15kw	18KW	39kw
Machine Dimension	2.40.81.3m	2.70.91.5m	2.60.91.75m
Drill mast height	6.5m	6.5m	6.5m
mud pump flow	95l/min	145l/min	250l/min
Mud pump max. pressure	1.2Mpa	2 mpa	3mpa

Detailed Images

Packing & Delivery
This trailer mounted water bore well drilling rig can be load into 1 20f container.

Our Company

ZheJiang CZPT Group Co.,Ltd

ZheJiang CZPT Group co.,ltd is the professional manufacturer of water well drilling rig . With more than 300 workers and 25 Senior engineers,high quality produts and best after sales service can both be guaranteed. main clients are around Southeast Asia,Mid East and South America. Welcome visit our factory and sent inquiry to us.

FAQ

Q1. Are you manufacturer or trader?
A: We are manufacturer of drilling rig. Actually, we produce most of the drilling rig in our own factory for better cost and quality control.

Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% against copy of B/L.

Q3. How about your delivery time?
A: Generally, it will take 15 days after receiving your advance payment. The specific delivery time depends
on the items and the quantity of your order. Sometimes we have some in stock.

Q4. Are you interested in dealership with local company?
A: Yes, we are quite interested in this business. We’d like to cooperate with some local partner to sell more World machines in local market and supply better service.

Q5. What is your warranty policy?
A: We can supply 1 year warranty or 2000h for our machines. We will provide parts as free within warranty. We can send engineer to customer place if big quality problem. We can provide internet or calling service at any time.

Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery

Q7: How do you make our business long-term and good relationship?
A:1. We trust “win-win situation”,we never said our product is best,and maybe our price is not cheapest,but we trust we are your right choice.Because we pay attention to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them,no matter where they come from.

Contact now

Action Now Contact us.

TRUST YOU WILL LIKE OUR DESIGNS & PRICE.

Screw Shaft Types

If you’re looking for a screw shaft, but aren’t sure which type to buy, you’re in luck. In this article, we’ll talk about the different types, including Threaded shank, Round head, and Machined. Once you’ve read it, you’ll know which type to buy. Then, you can decide whether you want a ball screw nut or a threaded shank.

Machined screw shafts

Besides the standard stainless steel shaft, manufacturers also provide a variety of other materials, such as titanium, bronze, and brass. In addition to stainless steel, manufacturers also provide a variety of top-coating options, including zinc, brass, and chromium. Aluminum screws are not particularly durable and are easily affected by weather. Most screw shafts feature self-locking mechanisms. They are especially useful in C-clamps, vises, and screw-top container lids.
For applications where accuracy is vital, a ball screw shaft needs to be annealed. A heat treatment can be performed on the ball screw shaft to ensure that both ends are heated evenly. In this process, the shaft will be more durable, while maintaining its high-precision properties. These screw shafts are a key component in computer-controlled motion-control systems, wire bonding, and other industries that require high-precision and high-quality performance.
Depending on the material used, screw shafts can be made of stainless steel or titanium. High-precision CNC machines and lathes are typically used to manufacture screw shafts. Various shapes and sizes are available, each with a specific application. Whether you need a small or large screw, you can find 1 to fit your needs. And since each size requires a different material, your choice of material is important as well.
In general, the materials used for machining screw shafts are steel, stainless steel, titanium, brass, bronze, and aluminum. Metals that resist corrosion are also commonly used. Other materials for screw shafts are Teflon, nylon, and nylon. You can also find threaded screw shafts in materials such as porcelain, glass, and ceramic. If you want to use your screws in a unique material, consider purchasing a customized one.
screwshaft

Ball screw nuts

If you have a screw shaft, the last thing you want to worry about is the ball nut slipping off. To prevent this, you can place a temporary stop in the shaft’s grooves to ensure that the ball nut does not slide off. When you remove the stop, you can then install the ball screw nut. But, before you can install the ball screw nut, you have to make sure that you have a good grip on the shaft.
When selecting ball screw nuts, it’s important to consider how much preload you need to apply to avoid excessive backlash. Preloading eliminates this problem by making the ball nut compact. It also prevents backlash, which is lost motion caused by clearance between the ball and nut. Backlash disrupts repeatability and accuracy. This is where spacer preloading comes in. You can insert a spacer between the 2 ball nuts to transmit the force to the nut. However, you should keep in mind that this method reduces the load capacity of the ball screw.
The critical speed of a screw is the maximum rotating speed before it whips. This critical speed is influenced by several factors, including the diameter of the screw shaft, the number of support elements, and the material. By adjusting these factors, you can reduce the number of components used and the amount of time it takes to assemble the screw shaft. In addition, you can also reduce the number of components and avoid stacking tolerances. However, the critical speed of plastic nuts is limited due to sliding friction.
The ball screw nut has several characteristics that make it unique. Its most prominent feature is the presence of ball bearings. These balls help reduce friction between the screw nut and the shaft. Without ball bearings, the friction would be too high to function properly. Another important characteristic is the groove profile of the nut and ball. These 2 features ensure that the ball and the nut meet at 2 points. You’ll be amazed by the results of the work of these ball screw nuts.
screwshaft

Threaded shank

Wood screws are usually not fully threaded because the shank has an unthreaded portion at the top. This shoulder part forces the screw to compress 2 pieces of wood, which prevents the screw from overheating and compromising the materials strength. As the screw is threaded partially up, it is not as difficult to remove as a fully threaded screw. However, it is important to note that a wood screw will not hold as tightly as 1 with a fully threaded shank.
In addition to being universal, screw threads can be of different sizes. For example, a M8 screw has a thread pitch of 1.25 mm. To avoid confusion, screw thread pitches are commonly given with a multiplication sign. For example, M8x1 means that the screw is 8 mm in diameter but has a thread pitch of 1 mm per 360-degree rotation. Those who are not familiar with these dimensions may find it confusing.
The OD of the threaded portion of a bolt is generally smaller than the OD of the nut. If the shank is too deep for the nut to fit, the threads may bottom out. This is why it’s important to use a thread-cutting bit with a small thread diameter. You can use a micrometer or caliper to measure the thread diameter. This tool will also allow you to easily identify which screw size fits where and how well.
The metric system is the most widely used. Fasteners with DIN numbers are generally metric in size. This makes them very useful for industrial settings. You can find metric-sized screws anywhere, as long as you buy them from a reputable manufacturer. These fasteners also come with a dog point, which is used for safety wire. If the screw needs to be replaced, the shank can be drilled with a hole for a safety wire or for a dog-point.

Round head

A round head screw is the most common type used for machine screws. Other common types include truss head, flat head, and hexed head. Each has a different profile and are used for different purposes. A round head screw is typically wider than a flat or a hexed head, and has a slightly rounded surface. These screws are useful for projects involving sheet metal or sheet-metal parts. Round heads are usually slightly wider than a hex head screw, and they may also be used as a substitute for washers in certain applications. However, truss heads are not necessary for every project.
A wood screw has a smooth shank that protrudes above the surface of the material it is attaching. A metal screw has a threaded shaft that is fully threaded from head to point, and a fully threaded shaft provides more bite. Two common head styles are round head and pan head. If the task requires the screw to be flush or countersunk, the round head will be the best choice.
Another type is the Reed & Prince screw drive. These are similar to Phillips screws but have a 75-degree V shape. They are commonly used in marine hardware and are also known as BNAE NFL22-070. This type is also used for steel plate hangers. In addition to round head and pan head screws, there are a variety of other screw types. You can even get a head with a slotted head if you know where to look.
Screw diameters are specified according to the ISO 261 or ISO 262 standards. An M8 screw has a diameter of 8.25 mm. The M8 screw has a pitch of 1.25 mm, which is equivalent to 1 mm per 360 degrees. There are several other standard screw sizes and thread diameters available. You can find them all by consulting the relevant standards. But remember, the metric system is the most popular.
screwshaft

Self-locking mechanism

A self-locking mechanism for a screw shaft is a device that secures the screw to its supporting member in a failure position. The locking mechanism provides a positive connection between the screw shaft and the control surface during normal operation, and locks the screw to its supporting member when the screw fails. Previous attempts to solve this problem have typically used secondary nuts with free play on the screw, which were intentionally designed to jam when loaded. However, such a device can be unreliable, which is why the present invention offers a more robust and reliable locking mechanism.
The self-locking function of a screw depends on several factors, including its pitch angle and the coefficient of friction of the threads. The angle of friction must be less than the tangent of the material pairing to prevent untightening of the screw. Screws with self-locking mechanisms have an efficiency e lower than 50%, which is less than half. Self-locking screws also have the benefit of being less efficient than a standard screw.
Unlike a normal screw, a self-locking screw can be turned in either direction. The nut 22 rotates with the screw shaft, and the member 23 is translated in an axial direction. Regardless of the direction of the rotation of the screw, this axial translation will result in the opposite moment to that input moment. While screw self-locking mechanisms are typically less expensive, they are more reliable and durable.
Another important feature of self-locking screws is that they are not susceptible to independent loosening. The screw cannot rotate without a certain amount of torque. In addition, a self-locking screw shaft must have a small wedge with a smaller half-angle than the arctangent of the static friction. This means that the torque applied by the driver must be greater than the torque needed to overcome the friction.

China manufacturer DTH Drilling Rig From Integrated Hydraulic DTH Drill Rig with high quality

China best Full Hydraulic Core Drill Rig Machine with Great quality

Product Description

I. General Introduction
The HYDX-5A new model Full Hydraulic Core Drill Rig is developed by HangZhou kudat i Machinery Co., Ltd. with reference of advanced technique of same kind equipment at home and abroad. The drill rig has a reasonable design and superior performance. It is easy to operate and for maintenance.

1. Overall Unit Features:
The drill rig adopts full hydraulic driving, travelling with crawlers itself. The drill head is driven by variable motor with function of two-speed mechanical gear shifts, stepless speed change with an advanced and simple structure. The rotator is fed and driven with a system connecting the spindle and oil cylinder with chain. The system has the function, if the piston rods of oil cylinder moving 1 certain distance, the drill head moving will double the distance. The mast could be adjusted within the range of angle 0 to 90 degree for its drilling hole with a low center of gravity and good stability of the overall unit. The rig provides operator with a nice field of vision and wide and comfortable working condition. The rig looks pretty in overall structure and embodies the design thought of people oriented.
1) Reliable Performance
Basing on the guideline of purchasing the critical auxiliary equipment internationally, the diesel engine, the hydraulic pump, the main valves, the motors, crawler reducers and key hydraulic spare parts are all adopted famous brands products at home and abroad.
2) High Efficiency
With big torque, high power unit allocation and with reasonable structure design and advanced operation method and 6 meters(19.7 feet) length of drill rod, all these guarantee the drill rig’s high operation and performance efficiency.
3) Environmental Protection
With lower pollution discharge of diesel engine, professional noise reducing design, the drill rig is suitable for urban operation and performance.
4) Energy Saving
Adopting the advanced load sensitive control technique, the drill rig has reduced the power consumption and heat generation to the lowest level.
With an elegant outline, compact structure, reliable performance and operation easily, it should be the priority equipment to be selected in the full hydraulic core drill rig of present domestic market.

2. Field of Application
HYDX-5A Type Drill Rig is mainly used for slope and straight holes drilling. It could be used for exploration and prospecting of geology, metallurgy, coal, nuke industry, hydrology and for other industries fields. It is a core drilling rig by using CZPT and carbide-tipped bits mainly.

Diesel Engine	Model	Cummins 6CTA8.3-C195 (turbocharged and charge water cooled)
	Displacement	8.3L(2.19 US Gallons)
	Power	145kW (195HP)
	Rated RPM(Factory setting)	2200rpm
Drilling Capacity	BQ	1500 m(4920 feet)
	NQ	1300 m(4264 feet)
	HQ	1000 m(3280 feet)
	PQ	680 m(2230 feet)
Drill Head	Rotation Motor	Double Hydraulic Motors -variable and Reversible Maker:SAUER-DANFOSS
	RPM	Two Shifts/ Stepless Change 0-1145 RPM
	Ratios	1st 8.776:1 2nd 2.716:1
	Head Opener	sidewise sliding way with hydraulic drive
	Hydraulic Chuck(PQ)	Hydraulically opened, Disc Spring Clamping, Normally Closed Type Axial Holding Capacity of 222 400 N
	Max. Torque	4650 N@m(3427 lbf@ft)
	Hold Diameter	121 mm(4.76 inch)
	Max. Lifting capacity of Spindle	150 kN(33720 lbf)
	Max. Feeding Power	75 kN(16860 lbf)
Primary Pump Package	Axial Piston variable displacement Triplex pump for driving of Drill Head Rotation, Main Hoist, Mud Pump & Line Winch.	Maker: DANFOSS 1st Pump:150LPM at 28.5MPa 2nd Pump:120LPM at 25MPa 3rd Pump:102 LPM at 25MPa
Hydraulic Tank	Capacity	420 L(111 US Gallons)
Capacity of Main Hoist	Hoisting Speed (single wire)	38-70m/min(bare drum)
	Hoisting force (single wire)	77kN(17310 lbf)
	Steel Wire Diameter	18 mm(0.71 inch)
	Steel Wire Length	50 m(164 feet)
Capacity of Wireline Hoist	Hoisting Speed (single wire)	164m/min (bare drum)
	Hoisting Force (single wire)	12 kN(2698 lbf) (bare drum)
	Steel Wire Diameter	6 mm(0.24 inch)
	Steel Wire Length	1500 m(4920 feet)
Mast	Mast Height	11 m(36 feet)
	Mast Adjusting Angle	0°_90°
	Drilling Angle	45°_90°
	Feeding Stroke	3800 mm(150 inch)
	Slippage Stroke	1500 mm(59 inch)
	Feed Pull	15000kg(33075 lb)
	Feed Thrust	7500kg(16538 lb)
	Rod Pull	3mor 6m(9.84feet or 19.68feet)
Mud Pump	Type	Reciprocating Pump Triplex Plunger
	Model	BW250
	Stroke	100mm(3.9 inch)
	Output volume	250,145, 90, 52 L/min (66, 38, 24, 14 US Gallons/min)
	Discharge pressure	2.5, 4.5, 6.0, 6.0 Mpa (363, 653, 870, 870 psi)
Foot Clamp	Clamping Scope	55.5-117.5 mm(2.19-4.63 inch) through hole 154mm(6.06 inch)
Other	Weight	13000 Kg(28665 lb)
	Dimensions (L × W ×H )	5600×2240×2650mm (220×88.2×104.3 inch)
	Transport Way	Steel Crawler

Screw Shaft Types

Machined screw shafts

Ball screw nuts

Threaded shank

Round head

Self-locking mechanism

China best Full Hydraulic Core Drill Rig Machine with Great quality

China manufacturer CZPT Hfg-21j Hydraulic Surface Professional Jumbo Drill for Sale near me factory

Product Description

The Main Features:

Applicable for blast hole drilling of underground mining, tunneling and bolting operation.
Function Configuration:
Equipped with environment friendly diesel engine to drive tramming and positioning, electrical motor to drive drilling operation, the dual power configuration allows the rig for fast maneuverability and zero emission with very low noise level of drilling operation. The rig is also equipped with high efficiency hydraulic drifter and heavy duty floating and steady combo boom drilling system, with high accurate automatic horizontal positioning and 360 rotating function, which allows the rig to finish 35 m2 face drilling coverage in 1 operation and also can be used for bolting and many other applications.
Tramming:
With high pressure and closed cycle hydraulic system to drive 4 wheels, for 2 speed transmission while moving forward and backward. With engine non stop when overloaded and climbing slopes, the rig will automatically adjust to lower speed with higher torque output. The 2 loop circuitry pedal braking system plus emergency braking device can ensure tramming safety. With only width of 1.65 m of ultra-narrow articulated heavy duty chassis design, the minimum turning radius is 2.8m with 14 degree climbility and tramming speed up to 12 km/h and the rig aims to drill blast holes in underground mines and tunneling excavation as well as bolting operation with professional narrow design in mind.

Control System:
With automatic hole collaring and percussion shutdown function after the drilling procedure completed plus 3 seconds delay to flush the hole bottom, the rig returns automatically to start mode. With AUTO shutdown protection function of the drifter and the rock drill tools, the rig will lubricate the drifter when rock drilling idle and when water flushing on. Advanced combo automatic anti-jamming system can adjust the rotation, feed and percussion pressure automatically according to the rock condition to ensure rock drilling operation always in optimum mode.
Intelligent Technology:
With CAN technology, modular layout of all electric system, and simplified circuitry increase reliability. The display panel in the canopy shows all drilling parameters and running state of the rig with automatic alarms and warnings, and data storage, to allow 1 man operation easy and trouble shootings simplified.

Product Features:
1. Feed: Heavy duty aluminum alloy feed beam with high anti-bending and torsion-resistant features and high corrosion proof assures long beam service life. The beam surface also is wrapped with stainless steel sheet and PTFE anti-wear CZPT applied between moving parts to further increase service life of the feed system.
2. Rock Drill: HF104M drifter with dual-damping system ensures best rock drilling tools service life. Pressurized oil film protects and lubricates all moving parts surface, decreasing interior wear of the drifter.
3. Safety Canopy: FOPS design for falling objects protection with lifting feature.
4. Large-capacity Cable Reel: Larger-capacity cable reel for 70 m travel without cable disassemble.
5. Positioning legs: Four heavy duty telescopic hydraulic legs for precise positioning and stability during drilling operation.
6. Console: Highly integrated System and 1 place layout design for easier, simpler and more convenient operation.
7. Braking system: Designed and developed specially for underground work environment – the dual braking system, besides front and rear axle wheel wet brakes, with front axle spindle wet brakes and rear axle closed hydraulic parking brakes and emergency shutdown brake added.

Product Parameters

HFJ21 Technical Specifications

Hole range	41-89 mm	Rod size					(R32, R38,T38) 3090 mm/3700 mm/4310 mm
Drilling depth	2830 mm/3440 mm/4050 mm	Maximum working area					35 m²
Drifter

model	HF104M	Hydraulic System Pressure					230 bar
Percussion Power	20 kw	Rotation Speed					0-388 rpm
Maximum Torque	752 N.m	Weight					170 kg
Percussion Frequency	60 Hz
Compressor

Pressure	8 bar	Capacity F.A.D					0.3 m³/min
Electric Motor

Model	GN13081501	Frequency					50 Hz
Power	55 kw	Votage					380 V
RPM	1475 r/min
Feed Mechanism

Total Length	4890 mm/5500 mm/6110 mm		Compensated Feeding length			1600 mm
Feeding length	2830 mm/3440 mm/4050 mm		Maximum Lifting Force			15 kn/19 kn
Boom

Parallel holding	Complete		Feed Swing Angle			±40°
Boom Extension	1200 mm		Feed Pitch Angle			+25°/-48°
Boom Swing Angle	±35°		Feed Angle			+3°/-90°
Boom Lifting Angle	+43°/-20°		Feed roll-over			360°(Spiral)
Chassis

Articulated Steering Angle	±41°		Approach and Departure Angles			15°
Hydraulic Support Legs	4		Fuel Tank Capacity			63 L
Model	4BTA3.9-C80-II		RPM			2200 r/min
Power	60 kw/(at 2200rpm)		Torque			380 N.m/(at 1500rpm)
Tramming Speed	12/4.5 km/h		Rear Axle Swing Angle			±10°
Maximum Traction Force	32 kn		Ground Clearance			260 mm
Climbing Angle	14°
Electric System

Start Type	Star / delta unloading start			Working Lights	2×40 W,24 V
Voltage	380 V			Tramming Lights	8×70 W,24 V
Battery	2×12 V,105 Ah			Cable Reel, Diameter	1100 mm
Water Flushing System

Flow	66 L/min			Minimum Water Inlet Pressure	2 bar
Pressure	12 bar			;	;
Weight and Dimensions

Weight	≤12000kg			Tramming Turning Radius	Inner R 2800 mm,Outer R 4900 mm
Dimensions ( L x W x H)	10920mmx1650 mmx2100 mm/2800 mm			Working Coverage Area : Width x Height	6600 mmx5670 mm(5600 mmx5390 mm)

Working Site

Company Profile

FAQ

1. Are you a trading company or a manufacturer?

We are a professional manufacturer. Our factory mainly produces water well drilling rigs, core drilling rigs, down-the-hole drilling rigs, pile drivers, etc. The products have been exported to hundreds of countries around the world and enjoy a high reputation all over the world.

2. How is the quality of your machine?
Our products pass strict quality inspections before they leave the factory to ensure that they are qualified before they are shipped.

3. How to inspect the goods?
1) Support customers to come to the factory for on-site inspection.
2) Support customers to designate third-party companies to inspect goods.
3) Support video inspection.

4. Do you have after-sales service?
Yes, we have a dedicated service team that will provide you with professional technical guidance. If you need, we can send our engineers to your workplace and provide training for your employees.

5. How about quality assurance?
We provide a one-year quality guarantee for the main machine of the machine.

6. How long is your delivery cycle?
1) In the case of stock, we can deliver the machine within 7 days.
2) Under standard production, we can deliver the machine within 15-20 days.
3) In the case of customization, we can deliver the machine within 20-25 days.

Screw Shaft Types and Uses

Various uses for the screw shaft are numerous. Its major diameter is the most significant characteristic, while other aspects include material and function are important. Let us explore these topics in more detail. There are many different types of screw shafts, which include bronze, brass, titanium, and stainless steel. Read on to learn about the most common types. Listed below are some of the most common uses for a screw shaft. These include: C-clamps, screw jacks, vises, and more.
screwshaft

Major diameter of a screw shaft

A screw’s major diameter is measured in fractions of an inch. This measurement is commonly found on the screw label. A screw with a major diameter less than 1/4″ is labeled #0 to #14; those with a larger diameter are labeled fractions of an inch in a corresponding decimal scale. The length of a screw, also known as the shaft, is another measure used for the screw.
The major diameter of a screw shaft is the greater of its 2 outer diameters. When determining the major diameter of a screw, use a caliper, micrometer, or steel rule to make an accurate measurement. Generally, the first number in the thread designation refers to the major diameter. Therefore, if a screw has a thread of 1/2-10 Acme, the major diameter of the thread is.500 inches. The major diameter of the screw shaft will be smaller or larger than the original diameter, so it’s a good idea to measure the section of the screw that’s least used.
Another important measurement is the pitch. This measures the distance between 1 thread’s tip and the next thread’s corresponding point. Pitch is an important measurement because it refers to the distance a screw will advance in 1 turn. While lead and pitch are 2 separate concepts, they are often used interchangeably. As such, it’s important to know how to use them properly. This will make it easier to understand how to select the correct screw.
There are 3 different types of threads. The UTS and ISO metric threads are similar, but their common values for Dmaj and Pmaj are different. A screw’s major diameter is the largest diameter, while the minor diameter is the lowest. A nut’s major diameter, or the minor diameter, is also called the nut’s inside diameter. A bolt’s major diameter and minor diameter are measured with go/no-go gauges or by using an optical comparator.
The British Association and American Society of Mechanical Engineers standardized screw threads in the 1840s. A standard named “British Standard Whitworth” became a common standard for screw threads in the United States through the 1860s. In 1864, William Sellers proposed a new standard that simplified the Whitworth thread and had a 55 degree angle at the tip. Both standards were widely accepted. The major diameter of a screw shaft can vary from 1 manufacturer to another, so it’s important to know what size screw you’re looking for.
In addition to the thread angle, a screw’s major diameter determines the features it has and how it should be used. A screw’s point, or “thread”, is usually spiky and used to drill into an object. A flat tipped screw, on the other hand, is flat and requires a pre-drilled hole for installation. Finally, the diameter of a screw bolt is determined by the major and minor diameters.
screwshaft

Material of a screw shaft

A screw shaft is a piece of machine equipment used to move raw materials. The screw shaft typically comprises a raw material w. For a particular screw to function correctly, the raw material must be sized properly. In general, screw shafts should have an axial-direction length L equal to the moving amount k per 1/2 rotation of the screw. The screw shaft must also have a proper contact angle ph1 in order to prevent raw material from penetrating the screw shaft.
The material used for the shaft depends on its application. A screw with a ball bearing will work better with a steel shaft than 1 made of aluminum. Aluminum screw shafts are the most commonly used for this application. Other materials include titanium. Some manufacturers also prefer stainless steel. However, if you want a screw with a more modern appearance, a titanium shaft is the way to go. In addition to that, screws with a chromium finish have better wear resistance.
The material of a screw shaft is important for a variety of applications. It needs to have high precision threads and ridges to perform its function. Manufacturers often use high-precision CNC machines and lathes to create screw shafts. Different screw shafts can have varying sizes and shapes, and each 1 will have different applications. Listed below are the different materials used for screw shafts. If you’re looking for a high-quality screw shaft, you should shop around.
A lead screw has an inverse relationship between contact surface pressure and sliding velocity. For heavier axial loads, a reduced rotation speed is needed. This curve will vary depending on the material used for the screw shaft and its lubrication conditions. Another important factor is end fixity. The material of a screw shaft can be either fixed or free, so make sure to consider this factor when choosing the material of your screw. The latter can also influence the critical speed and rigidity of the screw.
A screw shaft’s major diameter is the distance between the outer edge of the thread and the inner smooth part. Screw shafts are typically between 2 and 16 millimeters in diameter. They feature a cylindrical shape, a pointy tip, and a wider head and drive than the former. There are 2 basic types of screw heads: threaded and non-threaded. These have different properties and purposes.
Lead screws are a cost-effective alternative to ball screws, and are used for low power and light to medium-duty applications. They offer some advantages, but are not recommended for continuous power transmission. But lead screws are often quieter and smaller, which make them useful for many applications. Besides, they are often used in a kinematic pair with a nut object. They are also used to position objects.
screwshaft

Function of a screw shaft

When choosing a screw for a linear motion system, there are many factors that should be considered, such as the position of the actuator and the screw and nut selection. Other considerations include the overall length of travel, the fastest move profile, the duty cycle, and the repeatability of the system. As a result, screw technology plays a critical role in the overall performance of a system. Here are the key factors to consider when choosing a screw.
Screws are designed with an external threading that digs out material from a surface or object. Not all screw shafts have complete threading, however. These are known as partially threaded screws. Fully threaded screws feature complete external threading on the shaft and a pointed tip. In addition to their use as fasteners, they can be used to secure and tighten many different types of objects and appliances.
Another factor to consider is axial force. The higher the force, the bigger the screw needs to be. Moreover, screws are similar to columns that are subject to both tension and compression loads. During the compression load, bowing or deflection is not desirable, so the integrity of the screw is important. So, consider the design considerations of your screw shaft and choose accordingly. You can also increase the torque by using different shaft sizes.
Shaft collars are also an important consideration. These are used to secure and position components on the shaft. They also act as stroke limiters and to retain sprocket hubs, bearings, and shaft protectors. They are available in several different styles. In addition to single and double split shaft collars, they can be threaded or set screw. To ensure that a screw collar will fit tightly to the shaft, the cap must not be overtightened.
Screws can be cylindrical or conical and vary in length and diameter. They feature a thread that mates with a complementary helix in the material being screwed into. A self-tapping screw will create a complementary helix during driving, creating a complementary helix that allows the screw to work with the material. A screw head is also an essential part of a screw, providing gripping power and compression to the screw.
A screw’s pitch and lead are also important parameters to consider. The pitch of the screw is the distance between the crests of the threads, which increases mechanical advantage. If the pitch is too small, vibrations will occur. If the pitch is too small, the screw may cause excessive wear and tear on the machine and void its intended purpose. The screw will be useless if it can’t be adjusted. And if it can’t fit a shaft with the required diameter, then it isn’t a good choice.
Despite being the most common type, there are various types of screws that differ in their functions. For example, a machine screw has a round head, while a truss head has a lower-profile dome. An oval-its point screw is a good choice for situations where the screw needs to be adjusted frequently. Another type is a soft nylon tip, which looks like a Half-dog point. It is used to grip textured or curved surfaces.

China manufacturer CZPT Hfg-21j Hydraulic Surface Professional Jumbo Drill for Sale near me factory

China Professional Hydraulic Mountain Drilling Machine Borehole Drill Rig Made in China near me factory

Product Description

Hydraulic Mountain Drilling Machine Borehole Drill Rig Made in China

Product Information of XY-600F Drilling Rig Machine

XY-600F hydraulic drilling rig adopts the latest technology for CZPT drilling. It is widely used to
drill water well, geothermal hole, mining blasting, geological exploration, water conservancy, etc.

Parameters of XY-600F Drilling Rig Machine

XY-600F Drilling Rig
1. Main Parameters
Max. Drilling Depth		600m
Diameter of drill pipe		Φ42,Φ50,Φ60,Φ76
Angle of vertical spindle		90°~65°
Drilling capability
Φ75mm drill diameter		Max. Depth 600m
Φ108mm drill diameter		Max. Depth 500m
Φ127mm drill diameter		Max. Depth 400m
Φ159mm drill diameter		Max. Depth 300m
Φ219mm drill diameter		Max. Depth 210m
Φ273mm(10-4/5in) drill diameter		Max. Depth 150m
Φ500mm(19-3/5in) drill diameter		Max. Depth 80m
2. Vertical Spindle
Rotation speed	Forward 10 grades	30-1050r/min
	Reverse 2 grades	29-137r/min
Spindle stroke		560mm
Spindle bore		96mm
Hoisting capability		6000kg
Max. Torque		3800N.m
3. Main hoist
Lifting speed of single wire		0.5-1.9m/s
Diameter of wire rope		12.5mm
Carry capacity of single wire		4000kg
Diameter of winding drum		300mm
Volume of winding drum		50m
Lifting capability of single wire		3000kg
4.Auxiliary Hoist
Winding drum		140mm
Diameter of steel wire rope		6mm
Volume of winding drum		450m
5. Mud pump(as per your choice)
Horizontal triplex mud pump		BW-200II
Displacement		200L/min
Working pressure		50kg/cm² @ 5MPa
Diameter of water inlet hose		65mm
Diameter of water outlet hose		38mm
6.Power supply(choose 1 between the following two)
Diesel engine		Model 4100,38KW(50PS)
Electrical motor		Y180M-4B35,22kw
7. Weight and Dimension of main drilling rig
Weight		2880kg
Dimension		3700×1850×3200mm
8.Six-wheel Trailer
Walking speed		25Km/hr
Frame carrying capacity		4 tons
Steering wheel 600-14		0.75 tons
Bearing wheel 650-15		0.9 tons
Minimum turning angle		6.8m
9. Oil Pump		CBN-F32
Working pressure		20Mpa
Displacement		32L/min

Characteristics of XY-600F Drilling Rig Machine

(1) XY-600F adopts the newest automobile transmission assembly, with 10 grades forward rotation
speed and 2 grades reverse rotation speed, reasonable design, wide speed adjustable range, can
meet various stratum drilling requirements.

(2) Can meet the demand for various high efficiency drilling process needs, such as diamond wire
line coring, impact drilling, reverse circulation continuous coring (sampling) etc.

(3) Strong power, strong torque, strong bearing capacity, convenient to solve different downhole
accidents. Compact mechanical transmission structure, light weight, large diameter of spindle bore,
hydraulic stabilizer legs, good rigidity .

(4) Using hexagonal kelly bar to ensure the stable transmission of torque. Can not only meet the
small-diameter CZPT deep hole drilling, but also can satisfy the large-diameter carbide drilling
and different engineering drilling works.

(5) Advanced hydraulic system design makes the control handles concentrated, compact layout
reasonable, easy operation, flexible and reliable; Can realize remote speed change, more
humanization operation.

(6) The hydraulic system can adjust the feed pressure and feed speed during controlling the feed
process, in order to meet different stratum drilling needs. At the same time it is equipped with the
bottom hole pressure indicator, easy to master the situation inside the hole.

(7) The vertical spindle is equipped with hydraulic chuck,using the connecting rod type spring to
clamp, hydraulic chuck to loosen, carbide welding type slips, strong clamping force,long service life
and reliable operation.

(8) Advanced transfer case design, can implement easily independent operation of vertical shaft
and winch.

Working of Drilling Rig Machine

DEFY Service

1.Professional technical support pre-sale, sale and after-sale .
2.Your problems can get feedback in 8 hours and be solved in 24 hours.
3.Machine can be customized as per your requirement.
4.One year quality warranty.
5.Training: operation manual and DVD operation video, overseas installation is also available.
6.Spare parts are available in our factory at cost price for former customers.

Other models for your choice:

Model	Drilling Caliber	Max. depth	Feature
XY100	75~300mm	100m	Disassemble drill tower; Small in size.
XY-130	75~300mm	130m
XY-150	75~400mm	150m
XY-180	75~400mm	180m
XY-200	75~400mm	200m
XY-200F	75~400mm	200m	Integrative drill tower; Easy to transport.
XY-200C	75~400mm	200m
XY-600F	75~500mm	600m

FAQ

Q1: Are you trading company or manufacturer?
A1: We are original equipment manufacturer.we design,produce and sell.We master the core
technology, and constantly adjust our products according to the market trend and customer
feedback, ensure product quality.

Q2: How long is your delivery time?
A2: It is according to the model and quantity.
Generally it is 3-5 days if the machines are in stock.
It will be 15-30 days if you want to customize the machines.

Q3: What do I need to do after payment?
A3: a) If under FOB trading terms,you need to employ a ship forwarder to ship the goods to you;
b) Under CIF trading terms,we send the goods to the destination port,and contact you to pick
up the goods; All documents for customs clearance will be sent to you by international
express after shipment.

How to choose a suitable drilling rig?

1. What will you do using drilling rig?
—For water project, core sample, soil test, mineral prospect or others?

2. The depth you need?
—For water well, generally, 30-200m. For core sample, 30-600m, even more.

3. Any requirements to hole diameter?

—Within a certain range, the smaller diameter, the deeper depth. Mathematically, we call it
inversely proportional.

4. Working land condition?
A. soil, sand, weathered land, etc. soft stratum.
B. soil, sand, soft and hard rock stratum, mixed one.
C. Mainly hard rock, like granite.

Based on the above information, Our experienced engineers will help you recommend suitable
machine and price. If you have special demands, please tell us ahead.

About Us

HangZhou CZPT Mechanical & Electrical Equipment Co.,Ltd. locates in High-tech zone of
HangZhou city, China.

Our factory dedicates in manufacturing drilling rig since 1970s, more than 40 years’ experience
of production and development makes our product quality rank in the leading position at home and
abroad.

We are always seeking for ever greater perfection, keeping improving the production technology,
offering better user experience.

An Overview of Worm Shafts and Gears

This article provides an overview of worm shafts and gears, including the type of toothing and deflection they experience. Other topics covered include the use of aluminum versus bronze worm shafts, calculating worm shaft deflection and lubrication. A thorough understanding of these issues will help you to design better gearboxes and other worm gear mechanisms. For further information, please visit the related websites. We also hope that you will find this article informative.

Double throat worm gears

The pitch diameter of a worm and the pitch of its worm wheel must be equal. The 2 types of worm gears have the same pitch diameter, but the difference lies in their axial and circular pitches. The pitch diameter is the distance between the worm’s teeth along its axis and the pitch diameter of the larger gear. Worms are made with left-handed or right-handed threads. The lead of the worm is the distance a point on the thread travels during 1 revolution of the worm gear. The backlash measurement should be made in a few different places on the gear wheel, as a large amount of backlash implies tooth spacing.
A double-throat worm gear is designed for high-load applications. It provides the tightest connection between worm and gear. It is crucial to mount a worm gear assembly correctly. The keyway design requires several points of contact, which block shaft rotation and help transfer torque to the gear. After determining the location of the keyway, a hole is drilled into the hub, which is then screwed into the gear.
The dual-threaded design of worm gears allows them to withstand heavy loads without slipping or tearing out of the worm. A double-throat worm gear provides the tightest connection between worm and gear, and is therefore ideal for hoisting applications. The self-locking nature of the worm gear is another advantage. If the worm gears are designed well, they are excellent for reducing speeds, as they are self-locking.
When choosing a worm, the number of threads that a worm has is critical. Thread starts determine the reduction ratio of a pair, so the higher the threads, the greater the ratio. The same is true for the worm helix angles, which can be one, two, or 3 threads long. This varies between a single thread and a double-throat worm gear, and it is crucial to consider the helix angle when selecting a worm.
Double-throat worm gears differ in their profile from the actual gear. Double-throat worm gears are especially useful in applications where noise is an issue. In addition to their low noise, worm gears can absorb shock loads. A double-throat worm gear is also a popular choice for many different types of applications. These gears are also commonly used for hoisting equipment. Its tooth profile is different from that of the actual gear.
worm shaft

Bronze or aluminum worm shafts

When selecting a worm, a few things should be kept in mind. The material of the shaft should be either bronze or aluminum. The worm itself is the primary component, but there are also addendum gears that are available. The total number of teeth on both the worm and the addendum gear should be greater than 40. The axial pitch of the worm needs to match the circular pitch of the larger gear.
The most common material used for worm gears is bronze because of its desirable mechanical properties. Bronze is a broad term referring to various copper alloys, including copper-nickel and copper-aluminum. Bronze is most commonly created by alloying copper with tin and aluminum. In some cases, this combination creates brass, which is a similar metal to bronze. The latter is less expensive and suitable for light loads.
There are many benefits to bronze worm gears. They are strong and durable, and they offer excellent wear-resistance. In contrast to steel worms, bronze worm gears are quieter than their counterparts. They also require no lubrication and are corrosion-resistant. Bronze worms are popular with small, light-weight machines, as they are easy to maintain. You can read more about worm gears in CZPT’s CZPT.
Although bronze or aluminum worm shafts are the most common, both materials are equally suitable for a variety of applications. A bronze shaft is often called bronze but may actually be brass. Historically, worm gears were made of SAE 65 gear bronze. However, newer materials have been introduced. SAE 65 gear bronze (UNS C90700) remains the preferred material. For high-volume applications, the material savings can be considerable.
Both types of worms are essentially the same in size and shape, but the lead on the left and right tooth surfaces can vary. This allows for precise adjustment of the backlash on a worm without changing the center distance between the worm gear. The different sizes of worms also make them easier to manufacture and maintain. But if you want an especially small worm for an industrial application, you should consider bronze or aluminum.

Calculation of worm shaft deflection

The centre-line distance of a worm gear and the number of worm teeth play a crucial role in the deflection of the rotor. These parameters should be entered into the tool in the same units as the main calculation. The selected variant is then transferred to the main calculation. The deflection of the worm gear can be calculated from the angle at which the worm teeth shrink. The following calculation is helpful for designing a worm gear.
Worm gears are widely used in industrial applications due to their high transmittable torques and large gear ratios. Their hard/soft material combination makes them ideally suited for a wide range of applications. The worm shaft is typically made of case-hardened steel, and the worm wheel is fabricated from a copper-tin-bronze alloy. In most cases, the wheel is the area of contact with the gear. Worm gears also have a low deflection, as high shaft deflection can affect the transmission accuracy and increase wear.
Another method for determining worm shaft deflection is to use the tooth-dependent bending stiffness of a worm gear’s toothing. By calculating the stiffness of the individual sections of a worm shaft, the stiffness of the entire worm can be determined. The approximate tooth area is shown in figure 5.
Another way to calculate worm shaft deflection is by using the FEM method. The simulation tool uses an analytical model of the worm gear shaft to determine the deflection of the worm. It is based on a two-dimensional model, which is more suitable for simulation. Then, you need to input the worm gear’s pitch angle and the toothing to calculate the maximum deflection.
worm shaft

Lubrication of worm shafts

In order to protect the gears, worm drives require lubricants that offer excellent anti-wear protection, high oxidation resistance, and low friction. While mineral oil lubricants are widely used, synthetic base oils have better performance characteristics and lower operating temperatures. The Arrhenius Rate Rule states that chemical reactions double every 10 degrees C. Synthetic lubricants are the best choice for these applications.
Synthetics and compounded mineral oils are the most popular lubricants for worm gears. These oils are formulated with mineral basestock and 4 to 6 percent synthetic fatty acid. Surface-active additives give compounded gear oils outstanding lubricity and prevent sliding wear. These oils are suited for high-speed applications, including worm gears. However, synthetic oil has the disadvantage of being incompatible with polycarbonate and some paints.
Synthetic lubricants are expensive, but they can increase worm gear efficiency and operating life. Synthetic lubricants typically fall into 2 categories: PAO synthetic oils and EP synthetic oils. The latter has a higher viscosity index and can be used at a range of temperatures. Synthetic lubricants often contain anti-wear additives and EP (anti-wear).
Worm gears are frequently mounted over or under the gearbox. The proper lubrication is essential to ensure the correct mounting and operation. Oftentimes, inadequate lubrication can cause the unit to fail sooner than expected. Because of this, a technician may not make a connection between the lack of lube and the failure of the unit. It is important to follow the manufacturer’s recommendations and use high-quality lubricant for your gearbox.
Worm drives reduce backlash by minimizing the play between gear teeth. Backlash can cause damage if unbalanced forces are introduced. Worm drives are lightweight and durable because they have minimal moving parts. In addition, worm drives are low-noise and vibration. In addition, their sliding motion scrapes away excess lubricant. The constant sliding action generates a high amount of heat, which is why superior lubrication is critical.
Oils with a high film strength and excellent adhesion are ideal for lubrication of worm gears. Some of these oils contain sulfur, which can etch a bronze gear. In order to avoid this, it is imperative to use a lubricant that has high film strength and prevents asperities from welding. The ideal lubricant for worm gears is 1 that provides excellent film strength and does not contain sulfur.

China Professional Hydraulic Mountain Drilling Machine Borehole Drill Rig Made in China near me factory

China OEM Small Mobile Water Well Drilling Rig Hydraulic Drill Rig for 600m near me shop

Product Description

Small Mobile Water Well Drilling Rig Hydraulic Drill Rig for 600m

>> The JXY600T trailer mounted water well drilling rig is equipped with wheel running gear and hydraulic oil cylinder pillar,
transferring, convenient and easy to drill horizontal adjustment.
>> With hydraulic feed mechanism, improve drilling efficiency.
>> Advanced hydraulic system design makes the control handles concentrated, compact layout reasonable, easy operation,
flexible and reliable; Can realize remote speed change, more humanization operation;
>> It equipped with a pressure gauge instructions at the bottom of the bore pressure, easy to master the hole.
>> The drilling rig has 8 grades forward rotation speed and 2 grades reverse rotation speed, wide speed adjustable range.
>> Compact mechanical transmission structure, light weight, large diameter of spindle bore, hydraulic stabilizer legs, good
rigidity.

>> Characteristics

The hydraulic control drill mast can be raised and put down by the hydraulic cylinders,which increases labor safety; saves time and labor usage.The drilling rig adopts automatic telescopic mast, hydraulic cylinder support, hydraulic control drilling tower up and down, the operation saves time and labor, is safe and reliable.
>> Four long hydraulic stands can lift the machine to Max. height 1.3m so that the rig can be loaded and unload from the truck.
>> 24V electric start for diesel engine permits the rig to work in all kind of extreme weather condition.
>> The hydraulic tube twist machine can be installed, which saves time and increases the working efficiency to unload the rod.

>> Falling tower for hydraulic operation, convenient and reliable
>> Diesel engine with electric start, reduce labor intensity.

>> It is the most popular machine meeting most requirements for a combination drilling machine CZPT to complete rural water supply holes in sediments and hard rock.
>> High efficiency and low cost.

>> Specification

Drilling depth	m	75	219	273	500	600
Drilling Dia.	mm	600	210	150	80	60
Open hole Dia.	mm	600
End hole Dia.	mm	75
Drilling rod	mm	42,50,60,76
Drilling angle		65-90°
Rotary Spindle
Spindle forward speed	r/min	30-1050
Spindle reverse speed	r/min	29-137
Spindle stroke	mm	560
Spindle inner diameter	mm	96
Spindle lifting capacity	Kg	6000
Spindle Max.Torque	N/M	3800
Main Winch (Hydraulic)
Single line lifting speed	m/s	0.5-1.9
Tightrope diameter	mm	12.5
Hoist single line lifting capacity	Kg	4000
Roller diameter	mm	300
Roller cubic measure	m	50
Tools Winch
Tightrope diameter	mm	6
Roller diameter	mm	140
Roller cubic measure	m	450
Drilling rig Power(choose 1 between the following two)
Diesel engine	kw/hp	38/50
Electric motor	KW	22kw
Trailer
Loading Capacity	T	4
Walking Speed	km/h	25
Mini turning radius	m	6.8
Weight&Size
Weight	kg	3000
Dimension	mm	3700×1850×3200

>> Package & Shipment
>> Overseas Service&Project
>> Our Service

>> Pre-sale service

Acting as a good adviser, our well-trained sales groups and professional technical team propose most rational solutions for our valued client as per practical project requirement.

>> Select suitable model & matched equipment.

>> Strong technical support. Reply clients’ questions within 24 hours.

>> Service During Sales

We have responsible team from raw material to finished products, and guarantee 100% pass rate.

>> Design and manufacture products basis of client’s special equirement

>> Inspect each machine & matched accessories strictly before delivery

>> Timely inform client of production progress.

>> After Sales Service

We’re always with you in after-sale service.

>> We can arrange related after-sales representatives for debugging and training at worksite when starting up. >> E-mail, call or door-to-door service in later using.

>> About us

JCDRILL provide users high quality Mining & Drilling solutions,we always focus on the strategic conception of “Survival by quality, Development by credit”.

We have specilized in research, development and produce of rock blasting drilling rig, water well drilling rig, CZPT core drilling rig, anchor drilling rig, and relative accessories & drilling services. constantly provide professional drilling solutions for all customers with our advanced technology, excellent equipment, strict testing means and good service network, which establish our brand “JCDRILL” a good image of market, now,we products account for 50% of domestic market and have been export to more than 40 countries, and we awarded ISO9001: 2000 in November, 2002.

With excellent technology and solid market service capabilities, we have both a sound marketing system and excellent service support system, which help us win confidence of customers both at home and abroad,we can provide drilling rig users with high quality professional air compressor solution and relative after-sales service also.

>> Certification

>> FAQ

Q: Are you original manufacturer?	Q: Which payment terms are available to us?	Q: Which Incoterms 2571 terms can we work?
A: Yes, we CZPT is a official leading manufacture in drilling machinery in China and we have the whole series products you need.	A: T/T term or L/C term. On T/T term, 30% down payment is required in advance, and 70% balance shall be settled before shipment. On L/C term, a 100% irrevocable L/C without “soft clauses” can be accepted.	A: We CZPT are a professional and international company, accept all Incoterms 2571 terms, normally we work on FOB, CIF, CFR, CIP.
Q: How long will the delivery time take?	Q: How about after sales service?	Q:Spare Parts When You Need Them
A: Normally products will take about 3-15 days to produce the ordered machines. Most of the time, we can have an immediate delivery of our regular machines in 15 days.	A: 365×24 Year-round Service We are committed to year-round 24-hour service even during holidays, in line with our policy of always providing “a response within 15 minutes and job completion within 24 hours.”	A:We have spare parts centers across continents that stock specialist spare parts. We promise that spare parts will be delivered within 72 hours or no more than 1 week.

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What Are the Advantages of a Splined Shaft?

If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts

When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are 2 main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each 1 is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
splineshaft

They provide low noise, low wear and fatigue failure

The splines in a splined shaft are composed of 2 main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
splineshaft

They can be machined using a slotting or shaping machine

Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are 2 common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between 2 centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.

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