Tag Archives: hydraulic rock drill

China Best Sales Furukawa HD300 T38-654 Thread CZPT Sleeves; Furukawa HD300 Hydraulic Rock Drill Shank Adapter with high quality

Product Description

The shoulder-type solder tail has a hexagonal shape with an inscribed circle diameter of 22 mm and 25 mm, a length of 108 mm and a length of 159 mm, and is manufactured by a forging process for a light rock drill.
The lug-type shank is used for the inner-turning medium-rail type rock drill, and the diameter of the drill rod is 25mm and 32mm.
The spline type shank is often used for heavy-duty large-scale outer-track rotary rock drills with a diameter of 38mm or more. It is manufactured by common machining methods.
The shank used in China’s mines is mainly made of 35SiMnMoV or 24SiMnNi2CrMo, and the service life of the latter is significantly improved.

T38 T45 T51 Thread Shank Adaptor for Top Hammer drill rig
Shank adaptor or shank adapter, the task of the shank adapter is to transmit rotation torque, feed force, impact energy and flushing medium to the drill string.
The shank adapters from Pro-drill are there fore designed to with stand the high impact power of modern rock drills and made from specially selected material which also is hardened through cauterizing. Around 300 different shank adapters suitable for different rock drills are currently available from CZPT series drifters, Tamrock series drifters, Garden Dever series drifters etc.
Male shank adapters are ideal for drifting, tunneling & extension application where high bending stresses are present, Female shank adapters are used when the drilling space is limited and the total feed length is important.


The rock drill must be maintained in a high degree of maintenance during maintenance and repair. The replacement of the shank, front part, bolts, joints and hydraulic motor can be carried out at the construction site. All other maintenance and repairs must be carried out in a suitable work space and should be isolated from dusting operations.


Matters need attention:

1. Operate in different rock formations, select different types of drill bit, shaft pressure and rotation speed according to the softness and hardness of lithology.
2. When the drilling machine is perforated, it must comply with the original 3 parameters (wind pressure, axial pressure, speed) and the parameters recommended by the drill sample.then work.
3, before the drill bit, please check the appearance of each part, verify the drill wire end face and the drill bit packing box and the factory number on the certificate Consistent to prevent counterfeiting.
4. The drill bit is reasonably stored on the rig to prevent dust and other debris from entering the drill bit.
5. When the drill bit is replaced, it is necessary to ensure that there is no dust inside the drill, the air outlet is smooth, the thread is smeared, and the lifting and turning joints are used.It can be used only after the drill bit is connected.
6. Before replacing a new drill bit, carefully check whether the 3 cones are flexible, and whether the thread and teeth are intact.
7. When the new drill bit is drilled, it is necessary to run the low shaft pressure and low speed for 20-30 minutes, then gradually increase to the normal axial pressure.
8. When the new drill bit is newly opened, it is necessary to pay attention to clear the debris around the hole (rock, scrap metal, etc.), and at the same time,Slow ventilation, close to the surface, to prevent drilling, impact damage to the drill bit.
9. Working in soft rock formations, changing the drill bit in the middle, it is necessary to strictly check the alloy teeth of the outer kidney drill bit and the tooth on the cone.If there is no falling off, etc., if it falls to the bottom of the hole, if there is any old bit residue in the hole, it is strictly forbidden to use the new drill bit in the original hole.
10. When the rig is shut down, the drilling tool cannot be parked in the hole with water to prevent the slag and water from flowing back into the bearing and damage.bad drill bit.
11. When there are cracks in the rock or cracks in the rock caused by the crushing and working in the goaf, reduce the axial pressure and the rotational speed to prevent the teeth.the doctor broke.
12. When the drilling tool is in the hole, it is forbidden to reverse the hole to prevent the bit from falling.
13. When the drill bit is in the hole and the air compressor suddenly stops working, the rock slag is easy to enter the outer head, so it is strictly forbidden to rotate for a long time, resulting in bearing wear, repeated crushing of rock debris (click drill), and bit wear acceleration.
14. During the normal perforation operation, the main air path of the air compressor cannot have a serious air leakage phenomenon to ensure sufficient enthalpy and wind pressure.Extend the life of the drill bit.
15. The stabilizer bar is replaced regularly to ensure the stability of the drill pipe and make the drill bit work normally.
16. It is strictly forbidden to use the curved drill pipe to avoid uneven force on the 3 teeth of the drill bit and accelerate the damage of the drill bit.
17. The drill bit should be protected from moisture and ventilation. It is strictly forbidden to bump the cone and thread during handling.


Compared with the oversea brands, our advantages are bellowing:
A. Our products can match over 95% against the original products
B. Price are competitive against the famous brands and best quality against the small factory


Product Name: shank adaptor
Description: shank adaptor
Shank adaptor is used for transmitting power between drill machine and drill stems.
MOQ: No MOQ required for testing and trial order
Thread: R32,R38,T38,T45,T51
Length: 300mm-800mm
our shank adaptors are available for :


(COP1238,COP1838,COP1032 etc)
(HD715,HD612,HD609,PD200 etc)
(VL140,VL671,YH80A etc)
(HLX5,HL600,HL500,HL300,HL700,HL850,HL1000,HL1500 etc)

If you have interesting about this production,just feel free to contact with me  

The Benefits of Spline Couplings for Disc Brake Mounting Interfaces

Spline couplings are commonly used for securing disc brake mounting interfaces. Spline couplings are often used in high-performance vehicles, aeronautics, and many other applications. However, the mechanical benefits of splines are not immediately obvious. Listed below are the benefits of spline couplings. We’ll discuss what these advantages mean for you. Read on to discover how these couplings work.

Disc brake mounting interfaces are splined

There are 2 common disc brake mounting interfaces – splined and six-bolt. Splined rotors fit on splined hubs; six-bolt rotors will need an adapter to fit on six-bolt hubs. The six-bolt method is easier to maintain and may be preferred by many cyclists. If you’re thinking of installing a disc brake system, it is important to know how to choose the right splined and center lock interfaces.

Aerospace applications

The splines used for spline coupling in aircraft are highly complex. While some previous researches have addressed the design of splines, few publications have tackled the problem of misaligned spline coupling. Nevertheless, the accurate results we obtained were obtained using dedicated simulation tools, which are not commercially available. Nevertheless, such tools can provide a useful reference for our approach. It would be beneficial if designers could use simple tools for evaluating contact pressure peaks. Our analytical approach makes it possible to find answers to such questions.
The design of a spline coupling for aerospace applications must be accurate to minimize weight and prevent failure mechanisms. In addition to weight reduction, it is necessary to minimize fretting fatigue. The pressure distribution on the spline coupling teeth is a significant factor in determining its fretting fatigue. Therefore, we use analytical and experimental methods to examine the contact pressure distribution in the axial direction of spline couplings.
The teeth of a spline coupling can be categorized by the type of engagement they provide. This study investigates the position of resultant contact forces in the teeth of a spline coupling when applied to pitch diameter. Using FEM models, numerical results are generated for nominal and parallel offset misalignments. The axial tooth profile determines the behavior of the coupling component and its ability to resist wear. Angular misalignment is also a concern, causing misalignment.
In order to assess wear damage of a spline coupling, we must take into consideration the impact of fretting on the components. This wear is caused by relative motion between the teeth that engage them. The misalignment may be caused by vibrations, cyclical tooth deflection, or angular misalignment. The result of this analysis may help designers improve their spline coupling designs and develop improved performance.
CZPT polyimide, an abrasion-resistant polymer, is a popular choice for high-temperature spline couplings. This material reduces friction and wear, provides a low friction surface, and has a low wear rate. Furthermore, it offers up to 50 times the life of metal on metal spline connections. For these reasons, it is important to choose the right material for your spline coupling.

High-performance vehicles

A spline coupler is a device used to connect splined shafts. A typical spline coupler resembles a short pipe with splines on either end. There are 2 basic types of spline coupling: single and dual spline. One type attaches to a drive shaft, while the other attaches to the gearbox. While spline couplings are typically used in racing, they’re also used for performance problems.
The key challenge in spline couplings is to determine the optimal dimension of spline joints. This is difficult because no commercial codes allow the simulation of misaligned joints, which can destroy components. This article presents analytical approaches to estimating contact pressures in spline connections. The results are comparable with numerical approaches but require special codes to accurately model the coupling operation. This research highlights several important issues and aims to make the application of spline couplings in high-performance vehicles easier.
The stiffness of spline assemblies can be calculated using tooth-like structures. Such splines can be incorporated into the spline joint to produce global stiffness for torsional vibration analysis. Bearing reactions are calculated for a certain level of misalignment. This information can be used to design bearing dimensions and correct misalignment. There are 3 types of spline couplings.
Major diameter fit splines are made with tightly controlled outside diameters. This close fit provides concentricity transfer from the male to the female spline. The teeth of the male spline usually have chamfered tips and clearance with fillet radii. These splines are often manufactured from billet steel or aluminum. These materials are renowned for their strength and uniform grain created by the forging process. ANSI and DIN design manuals define classes of fit.

Disc brake mounting interfaces

A spline coupling for disc brake mounting interfaces is a type of hub-to-brake-disc mount. It is a highly durable coupling mechanism that reduces heat transfer from the disc to the axle hub. The mounting arrangement also isolates the axle hub from direct contact with the disc. It is also designed to minimize the amount of vehicle downtime and maintenance required to maintain proper alignment.
Disc brakes typically have substantial metal-to-metal contact with axle hub splines. The discs are held in place on the hub by intermediate inserts. This metal-to-metal contact also aids in the transfer of brake heat from the brake disc to the axle hub. Spline coupling for disc brake mounting interfaces comprises a mounting ring that is either a threaded or non-threaded spline.
During drag brake experiments, perforated friction blocks filled with various additive materials are introduced. The materials included include Cu-based powder metallurgy material, a composite material, and a Mn-Cu damping alloy. The filling material affects the braking interface’s wear behavior and friction-induced vibration characteristics. Different filling materials produce different types of wear debris and have different wear evolutions. They also differ in their surface morphology.
Disc brake couplings are usually made of 2 different types. The plain and HD versions are interchangeable. The plain version is the simplest to install, while the HD version has multiple components. The two-piece couplings are often installed at the same time, but with different mounting interfaces. You should make sure to purchase the appropriate coupling for your vehicle. These interfaces are a vital component of your vehicle and must be installed correctly for proper operation.
Disc brakes use disc-to-hub elements that help locate the forces and displace them to the rim. These elements are typically made of stainless steel, which increases the cost of manufacturing the disc brake mounting interface. Despite their benefits, however, the high braking force loads they endure are hard on the materials. Moreover, excessive heat transferred to the intermediate elements can adversely affect the fatigue life and long-term strength of the brake system.

China Best Sales Furukawa HD300 T38-654 Thread CZPT Sleeves; Furukawa HD300 Hydraulic Rock Drill Shank Adapter     with high qualityChina Best Sales Furukawa HD300 T38-654 Thread CZPT Sleeves; Furukawa HD300 Hydraulic Rock Drill Shank Adapter     with high quality