CN-224209484-U - Clamping device for maintaining conical gear shaft of mining speed reducer

CN224209484UCN 224209484 UCN224209484 UCN 224209484UCN-224209484-U

Abstract

The clamping device for maintaining the conical gear shaft of the mining speed reducer comprises a chuck, clamping parts and a jacking part, wherein clamping jaws are uniformly distributed on the end face of the chuck in the circumferential direction, the chuck can drive the clamping jaws to move along the radial direction of the chuck, the clamping parts are arranged on the clamping jaws, the clamping parts can clamp the gear part of the conical gear shaft in the radial direction, the jacking part can prop against the non-gear end of the conical gear shaft, and the clamping is realized in the axial direction of the conical gear shaft in cooperation with the clamping parts. By using the device to clamp the conical gear shaft, a clamping process table is not required to be reserved at the head of the conical gear shaft, so that the stability of clamping can be ensured, the disassembled conical gear shaft can be rapidly subjected to working procedures such as turning and grinding, the conical gear shaft is repaired to the drawing size, the maintenance and processing precision is ensured, the maintenance period is shortened, and the production efficiency is improved.

Inventors

ZHANG YI
MI PEI
GAO XIANG
ZHAO HUA
ZHU HAIPENG
TANG HONG
ZHOU LIBO

Assignees

宁夏天地奔牛传动科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250527

Claims (10)

1. The clamping device for maintaining the conical gear shaft of the mining speed reducer is characterized by comprising a chuck, clamping parts and a jacking part, wherein clamping claws are uniformly distributed on the end face of the chuck in the circumferential direction, the chuck can drive the clamping claws to move along the radial direction of the chuck, the clamping parts are arranged on the clamping claws, the clamping parts can clamp the gear part of the conical gear shaft in the radial direction, and the jacking part can prop against the non-gear end of the conical gear shaft and is matched with the clamping parts to clamp the conical gear shaft in the axial direction.
2. The mining speed reducer bevel gear shaft maintenance clamping device according to claim 1, wherein the clamping portion is provided with an arc-shaped groove capable of clamping a gear portion of the bevel gear shaft.
3. The maintenance and clamping device for the bevel gear shaft of the mining speed reducer according to claim 2, wherein the diameter of the arc-shaped groove gradually decreases from one end of the arc-shaped groove to the other end of the arc-shaped groove, so that the arc-shaped groove can be matched with the gear part of the bevel gear shaft.
4. The maintenance clamping device for the conical gear shaft of the mining speed reducer according to claim 3, wherein the end, with the small diameter, of the arc-shaped groove is provided with a limiting block which can be attached to the end face of the gear part of the conical gear shaft.
5. The mining speed reducer bevel gear shaft maintenance clamping device according to any one of claims 1 to 4, wherein the end face of the top pressing part is conical.
6. The maintenance and clamping device for the conical gear shaft of the mining speed reducer according to claim 5, wherein a top plate is arranged on one side, close to the conical end, of the top pressing part.
7. The maintenance and clamping device for the bevel gear shaft of the mining speed reducer according to claim 5, wherein the chuck is provided with a guide groove for the clamping jaw to move, and a convex strip arranged along the radial direction of the chuck is arranged in the guide groove.
8. The maintenance and clamping device for the bevel gear shaft of the mining speed reducer according to claim 7, wherein the clamping jaw is provided with a chute matched with the convex strip.
9. The device for maintaining and clamping the conical gear shaft of the mining speed reducer according to claim 8, wherein the clamping jaws are provided with clamping tables capable of clamping the clamping part to move along the radial direction of the chuck, and the clamping tables are distributed in a stepped mode.
10. The device for maintaining and clamping the conical gear shaft of the mining speed reducer according to claim 1 is characterized in that the number of the clamping jaws is four, and the number of the clamping portions is identical to that of the clamping jaws.

Description

Clamping device for maintaining conical gear shaft of mining speed reducer Technical Field The utility model relates to the technical field of bevel gear shafts, in particular to a maintenance clamping device for a bevel gear shaft of a mining speed reducer. Background Bevel gears are conical gears that transmit motion between two intersecting axes, an important form of mechanical transmission. The conical gear pair of the mining speed reducer has the characteristics of stable transmission, strong bearing capacity, high efficiency and the like, and is suitable for a scraper conveyor and a reversed loader of a working face under a coal mine. The bevel gear shaft is used as a core part of the bevel gear shaft, and the material has good toughness, wear resistance and machinability, and is long in processing process flow, complex in working procedure and high in product value. During operation, abrasion, scratches and the like can appear on the outer circle of the bevel gear shaft, but in order to ensure the service life of the mining speed reducer, the disassembly, maintenance and remanufacturing work of the workpiece is indispensable. In the machining process of the bevel gear shaft, as the head part is a conical surface, in the working procedures of turning, grinding, hobbing and the like, clamping process stations are reserved for the head part of the bevel gear shaft before blanking, the machining working procedures can be finished by clamping, and the reserved clamping process stations for the head part are required to be machined after the working procedures are finished so as to avoid interference between assembly and a box body. However, in the process of disassembly and maintenance, when the outer circle of the shaft is scratched, worn, scratched and the like, repair welding and cladding treatment are needed for the shaft, and when the shaft is processed, the conical surface of the head cannot be clamped, a welding process table is needed for the head, a central hole is repaired, time and labor are wasted, and the efficiency is low. Disclosure of Invention In order to solve the technical problems in the prior art, in view of the problems, it is necessary to provide a device for maintaining and clamping a bevel gear shaft of a mining speed reducer. The clamping device for maintaining the conical gear shaft of the mining speed reducer comprises a chuck, clamping parts and pressing parts, wherein clamping jaws are uniformly distributed on the end face of the chuck in the circumferential direction, the chuck can drive the clamping jaws to move along the radial direction of the chuck, the clamping parts are arranged on the clamping jaws, the clamping parts can clamp the gear part of the conical gear shaft in the radial direction, the pressing parts can press against the non-gear end of the conical gear shaft, and the clamping is realized in the axial direction of the conical gear shaft in cooperation with the clamping parts. Preferably, the clamping part is provided with an arc-shaped groove which can clamp the gear part of the bevel gear shaft. Preferably, the diameter of the arc-shaped groove gradually decreases from one end of the arc-shaped groove to the other end, so that the arc-shaped groove can be matched with the gear part of the bevel gear shaft. Preferably, one end with small diameter of the arc-shaped groove is provided with a limiting block which can be attached to the end face of the gear part of the bevel gear shaft. Preferably, the end surface of the pressing part is tapered. Preferably, a top plate is arranged on one side of the top pressing part, which is close to the conical end. Preferably, the chuck is provided with a guide groove for the clamping jaw to move, and a convex strip distributed along the radial direction of the chuck is arranged in the guide groove. Preferably, the claw is provided with a chute matched with the convex strip. Preferably, the clamping claw is provided with clamping tables capable of clamping the clamping part to move along the radial direction of the chuck, and the clamping tables are distributed in a step shape. Preferably, the number of the clamping claws is four, and the number of the clamping parts is identical to that of the clamping claws. Compared with the prior art, the maintenance clamping device for the conical gear shaft of the mining speed reducer comprises the chuck, the clamping part and the jacking part, wherein the clamping claws are uniformly distributed on the end face of the chuck in the circumferential direction, the chuck can drive the clamping claws to move along the radial direction of the chuck, the clamping part is arranged on the clamping claws, the clamping part can clamp the gear part of the conical gear shaft in the radial direction, the jacking part can prop against the non-gear end of the conical gear shaft, and the clamping is realized in the axial direction of the conical gear shaft in cooperation with the clamping part. By u