High-efficiency diamond roller for hub bearing grinding wheel

Abstract

The utility model discloses a high-efficiency diamond roller for a wheel hub bearing grinding wheel, which comprises a roller, a diamond particle layer and a cooling jacket, the roller is concentrically arranged on the outer side of the cooling jacket, and a first convex rib and a second convex rib are arranged on the outer wall of the roller in a front-back spaced manner; the diamond particle layer is arranged on the surfaces of the outer wall of the roller, the first convex rib and the second convex rib, a first annular groove and a second annular groove which are in one-to-one correspondence with the first convex rib and the second convex rib are concavely formed in the inner wall of the roller, and a cooling liquid supply pipe insertion hole concentrically communicated with the driving shaft mounting hole is concavely formed in the front part of the cooling sleeve; a third annular groove corresponding to the first annular groove is formed in the cooling liquid supply pipe insertion hole in an inwards-concave mode, a first flow channel connected between the first annular groove and the third annular groove is formed in the cooling sleeve in the radial direction, a second flow channel communicating the first annular groove and the second annular groove is formed in the roller in the axial direction, cooling of the roller and the cooling sleeve is enhanced, and the service life of the roller is prolonged. And the structural stability of the roller and the diamond particle layer is improved.

Description

A high-efficiency diamond roller for grinding wheels used in hub bearings Technical Field

[0001] This utility model relates to the field of diamond rollers, and in particular to a high-efficiency diamond roller for grinding wheels used in hub bearings. Background Technology

[0002] The outer ring of the wheel hub bearing requires high quality and can be ground using a specialized grinding wheel. During the machining process, a diamond roller is first used to dress the grinding wheel, and after the grinding wheel is shaped, the wheel hub bearing is ground, improving the dimensional accuracy and machining efficiency of the wheel hub bearing.

[0003] Grinding wheels are highly hard and difficult to grind. The dressing process using diamond rollers generates a significant amount of heat, typically requiring coolant spraying to remove heat from the surface of the diamond roller, but this is insufficient to remove internal heat. Furthermore, to improve dressing efficiency, the friction between the diamond roller and the grinding wheel is increased, further amplifying heat generation and leading to heat buildup inside the diamond roller. This reduces the roller's stability and lifespan, necessitating improvements. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency diamond roller for grinding wheels used in wheel hub bearings, which improves internal cooling effect and structural stability, and can perform efficient dressing of grinding wheels used in wheel hub bearings.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A high-efficiency diamond roller for grinding wheel hub bearings includes: a roller, a diamond particle layer, and a cooling sleeve. The roller is concentrically arranged on the outer side of the cooling sleeve. The outer wall of the roller has a first rib and a second rib spaced apart front to back. The diamond particle layer is disposed on the outer wall of the roller and the surfaces of the first and second ribs. The inner wall of the roller has a first annular groove and a second annular groove that correspond one-to-one with the first and second ribs. The rear part of the cooling sleeve has a drive shaft mounting hole. The front part of the cooling sleeve has a coolant supply pipe insertion hole that is concentrically connected to the drive shaft mounting hole. The coolant supply pipe insertion hole has a third annular groove that corresponds to the first annular groove. The cooling sleeve has a first flow channel radially arranged connecting the first and third annular grooves. The roller has a second flow channel axially arranged connecting the first and second annular grooves. The outer wall of the cooling sleeve has a third flow channel radially arranged communicating with the second annular groove. One end of the cooling sleeve has a fourth flow channel axially arranged communicating with the third flow channel.

[0007] The diameter of the coolant supply pipe insertion hole is larger than the diameter of the drive shaft mounting hole.

[0008] The third and fourth flow channels are respectively blind holes.

[0009] The roller is welded and fixed to the cooling jacket.

[0010] The device also includes a drive shaft, a gasket, and a screw. The drive shaft is inserted into the drive shaft mounting hole from the rear of the cooling sleeve. The gasket is placed in the coolant supply pipe insertion hole. The screw is placed in the coolant supply pipe insertion hole and connects to the drive shaft after passing through the gasket.

[0011] It also includes a coolant supply pipe and a sealing ring. The coolant supply pipe is inserted into the coolant supply pipe insertion hole from the front of the cooling jacket, and the sealing ring is disposed on the outer circle of the coolant supply pipe and contacts the inner wall of the coolant supply pipe insertion hole.

[0012] The beneficial effects of this utility model are as follows: A high-efficiency diamond roller for grinding wheels of wheel hub bearings, during the rotation of the cooling jacket, can send the coolant in the third annular groove into the first annular groove through the first flow channel to enhance the cooling of the first rib, and then send it into the second annular groove through the second flow channel to enhance the cooling of the second rib, and finally flow out through the third and fourth flow channels, thus achieving cooling of the roller and the cooling jacket, improving the structural stability of the roller and the diamond particle layer, making it less prone to overheating damage, and helping to improve the speed and efficiency when dressing the grinding wheel of wheel hub bearings. Attached Figure Description

[0013] Figure 1 is a structural schematic diagram of this utility model;

[0014] Figure 2 is a schematic diagram of the structure of the cooling jacket after the drive shaft and coolant supply pipe are installed in Figure 1. Detailed Implementation

[0015] The technical solution of this utility model will be further explained below with reference to Figures 1 and 2 and through specific embodiments.

[0016] As shown in Figures 1 and 2, the high-efficiency diamond roller for grinding wheel of hub bearing includes: roller 2, diamond particle layer 3, cooling jacket 1, drive shaft 4, gasket 5, screw 6, coolant supply pipe 7 and sealing ring 8. The roller 2 is concentrically arranged on the outside of the cooling jacket 1. In this embodiment, the roller 2 is welded and fixed to the cooling jacket 1, and the structure is stable.

[0017] The outer wall of the roller 2 is provided with a first rib 23 and a second rib 24 spaced apart front to back. This facilitates the formation of a rib structure on the diamond particle layer 3, enabling contour dressing of the wheel hub bearing grinding wheel and improving dressing efficiency. The diamond particle layer 3 is located on the outer side and can be cooled by spraying coolant.

[0018] The diamond particle layer 3 is disposed on the outer wall of the roller 2 and the surface of the first rib 23 and the second rib 24. The diamond particle layer 3 can be fixed to the outer wall of the roller 2 and the surface of the first rib 23 and the second rib 24 by chemical or electroplating methods, resulting in a solid structure.

[0019] As shown in Figure 1, the inner wall of the roller 2 is recessed with a first annular groove 21 and a second annular groove 22 corresponding to the first rib 23 and the second rib 24. During the dressing process of the wheel hub bearing grinding wheel, the heat is concentrated at the location of the first rib 23 and the second rib 24. The design of the first annular groove 21 and the second annular groove 22 is conducive to the introduction of coolant to enhance the cooling of the first rib 23 and the second rib 24, thereby improving the structural stability of the first rib 23 and the second rib 24.

[0020] A drive shaft mounting hole 11 is recessed at the rear of the cooling sleeve 1, and a coolant supply pipe insertion hole 13 is recessed at the front of the cooling sleeve 1 and is concentrically connected to the drive shaft mounting hole 11. The diameter of the coolant supply pipe insertion hole 13 is larger than the diameter of the drive shaft mounting hole 11, forming a step.

[0021] As shown in Figure 2, the drive shaft 4 is inserted into the drive shaft mounting hole 11 from the rear of the cooling sleeve 1. The gasket 5 is placed in the coolant supply pipe insertion hole 13, specifically at the stepped position. The screw 6 is placed in the coolant supply pipe insertion hole 13, and after passing through the gasket 5, it is connected to the drive shaft 4, thereby fixing the drive shaft 4 to the cooling sleeve 1. This facilitates assembly and allows the drive shaft 4 to drive the synchronous rotation of the cooling sleeve 1.

[0022] The coolant supply pipe 7 is inserted into the coolant supply pipe socket 13 from the front of the cooling sleeve 1. The sealing ring 8 is set on the outer circle of the coolant supply pipe 7 and contacts the inner wall of the coolant supply pipe socket 13 to improve the anti-leakage effect. The coolant supply pipe 7 is fixed on the grinding equipment frame and connected to an external liquid pump to deliver coolant into the coolant supply pipe socket 13.

[0023] A third annular groove 12 corresponding to the first annular groove 21 is recessed in the coolant supply pipe insertion hole 13. A first flow channel 14 connecting the first annular groove 21 and the third annular groove 12 is radially arranged in the cooling sleeve 1. The first flow channel 14 is distributed in an annular array with good uniformity. The coolant in the coolant supply pipe insertion hole 13 enters the first annular groove 21 through the third annular groove 12 and the first flow channel 14, which can enhance the cooling of the first rib 23.

[0024] A second flow channel 25 is axially provided in the roller 2, connecting the first annular groove 21 and the second annular groove 22. The coolant in the first annular groove 21 enters the second annular groove 22 through the second flow channel 25, which enhances the cooling of the second rib 24.

[0025] As shown in Figure 1, a third flow channel 15, communicating with the second annular groove 22, is radially arranged on the outer wall of the cooling jacket 1. A fourth flow channel 16, communicating with the third flow channel 15, is axially arranged at one end of the cooling jacket 1. In this embodiment, the third flow channel 15 and the fourth flow channel 16 are both blind holes, which facilitates processing. The coolant in the second annular groove 22 flows out through the third flow channel 15 and the fourth flow channel 16, completing the circulation and carrying away the heat inside the cooling jacket 1 and the roller 2, improving structural stability and avoiding the problem of thermal expansion.

[0026] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-efficiency diamond roller for grinding wheels used in hub bearings, characterized in that, include: The cooling sleeve comprises a roller, a diamond particle layer, and a cooling jacket. The roller is concentrically arranged on the outer side of the cooling jacket. A first rib and a second rib are spaced apart on the outer wall of the roller. The diamond particle layer is disposed on the outer wall of the roller and on the surfaces of the first and second ribs. A first annular groove and a second annular groove, corresponding one-to-one with the first and second ribs, are recessed in the inner wall of the roller. A drive shaft mounting hole is recessed in the rear part of the cooling jacket. A coolant supply pipe insertion hole, concentrically connected to the drive shaft mounting hole, is recessed in the front part of the cooling jacket. A third annular groove, corresponding to the first annular groove, is recessed in the coolant supply pipe insertion hole. A first flow channel, radially connected between the first and third annular grooves, is arranged in the cooling jacket. A second flow channel, axially connected to the first and second annular grooves, is arranged in the roller. A third flow channel, radially connected to the second annular groove, is arranged on the outer wall of the cooling jacket. A fourth flow channel, axially connected to the third flow channel, is arranged at one end of the cooling jacket.

2. The high-efficiency diamond roller for wheel hub bearing grinding as described in claim 1, characterized in that, The diameter of the coolant supply pipe insertion hole is larger than the diameter of the drive shaft mounting hole.

3. The high-efficiency diamond roller for wheel hub bearing grinding as described in claim 1, characterized in that, The third and fourth flow channels are both blind holes.

4. The high-efficiency diamond roller for wheel hub bearing grinding as described in claim 1, characterized in that, The roller is welded and fixed to the cooling jacket.

5. The high-efficiency diamond roller for wheel hub bearing grinding as described in claim 1, characterized in that, It also includes a drive shaft, a gasket, and a screw. The drive shaft is inserted into the drive shaft mounting hole from the rear of the cooling sleeve. The gasket is placed in the coolant supply pipe insertion hole. The screw is placed in the coolant supply pipe insertion hole and is connected to the drive shaft after passing through the gasket.

6. The high-efficiency diamond roller for wheel hub bearing grinding as described in claim 1, characterized in that, It also includes a coolant supply pipe and a sealing ring. The coolant supply pipe is inserted into the coolant supply pipe insertion hole from the front of the cooling jacket, and the sealing ring is disposed on the outer circle of the coolant supply pipe and contacts the inner wall of the coolant supply pipe insertion hole.

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