CN210744930U

CN210744930U - Internal spline housing device for motor rotor shaft and dismounting tool

Info

Publication number: CN210744930U
Application number: CN201921345175.0U
Authority: CN
Inventors: 闻健; 孙海峰; 李维; 关洪波; 邱传亮
Original assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Current assignee: Fushun Coal Mine Motor Manufacturing Co Ltd
Priority date: 2019-08-19
Filing date: 2019-08-19
Publication date: 2020-06-12
Anticipated expiration: 2029-08-19

Abstract

The utility model discloses an electric motor rotor is internal spline housing device and dismantlement frock for axle, which comprises a rotating shaft, the tip of pivot is equipped with a word breach, and the inside of pivot is equipped with the ladder notch, and the packing ring setting is inside the ladder notch, the outside of packing ring and the ladder notch butt of pivot, the inside screw thread notch that is equipped with of packing ring, one side of packing ring are equipped with the internal spline housing, the internal spline housing includes the circumference, the overall dimension of circumference is unanimous with the ladder notch, circumference and packing ring butt, internal spline housing still include key cover portion, the overall dimension of key cover portion is unanimous with a word breach of pivot tip, the inside spline groove that is equipped with of key cover portion, the utility model has the advantages that: the problem of change key sleeve under the condition that the colliery motor working space is little is solved, cost of maintenance is reduced to the internal spline cover has the commonality, can install the internal spline cover of not unidimensional as required.

Description

Internal spline housing device for motor rotor shaft and dismounting tool

Technical Field

The utility model relates to a motor field specifically says so a key sleeve structure of pivot.

Background

The integral internal spline shaft structure of the coal mining machine, the heading machine, the conveyor, the pump motor and other equipment used in the underground coal mine has the disadvantages of complex manufacturing process, incapability of repairing after damage, high manufacturing cost, complex maintenance and replacement process of the half shaft and the shaft head structure, long maintenance period and high maintenance cost, and the replacement of the spline sleeve cannot be completed in the underground coal mine, so that the coal mining work is restricted.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses an electric motor rotor is internal spline cover device and dismantlement frock for axle.

The specific technical scheme is as follows:

the utility model provides an internal spline housing device for electric motor rotor axle, includes the pivot, the tip of pivot is equipped with a word breach, and the inside of pivot is equipped with the ladder notch, and the packing ring setting is inside the ladder notch, the outside of packing ring and the ladder notch butt of pivot, the inside screw thread notch that is equipped with of packing ring, one side of packing ring are equipped with the internal spline housing, the internal spline housing includes circumference portion, the overall dimension of circumference portion is unanimous with the ladder notch, circumference portion and packing ring butt, the internal spline housing still includes key cover portion, the overall dimension of key cover portion is unanimous with a word breach of pivot tip, the inside spline groove that is equipped with of key cover portion.

The rotating shaft is further provided with a bearing, the bearing is axially fixed through a first retaining ring sleeved on the rotating shaft, and the inner spline sleeve is axially fixed through a second retaining ring sleeved on the rotating shaft.

The utility model discloses a further disclose electric motor rotor is dismantlement frock of internal spline housing device for axle: the gasket is provided with a ram, one end of the ram is a thread section with the same size as the thread notch in the gasket, the other end of the ram is a position with the largest circumferential size, and a sleeve is further arranged at the circumferential position of the ram.

The utility model has the advantages that: the problem of change key sleeve under the condition that the colliery motor working space is little is solved, cost of maintenance is reduced to the internal spline cover has the commonality, can install the internal spline cover of not unidimensional as required.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the spindle;

FIG. 3 is a schematic view of the structure of the gasket;

FIG. 4 is a schematic structural view of the internally splined sleeve;

FIG. 5 is a schematic structural view of a tool for disassembling the inner spline housing;

FIG. 6 is a schematic view of the inner spline housing dismounting position of the tool for dismounting the inner spline housing.

Detailed Description

The utility model discloses, combine the attached drawing to explain specifically the utility model discloses, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, an internal spline housing device for electric motor rotor axle, including pivot 1, the tip of pivot 1 is equipped with a word breach 101, and the inside of pivot 1 is equipped with ladder notch 102, and packing ring 2 sets up inside ladder notch 102, and the outside of packing ring 2 and the ladder notch 102 butt of pivot, the inside screw thread notch 201 that is equipped with of packing ring 2, one side of packing ring 2 are equipped with internal spline housing 3, internal spline housing 3 includes circumference 301, circumference 301's overall dimension is unanimous with ladder notch 102, circumference 301 and packing ring 2 butt, internal spline housing still include key housing portion 302, the overall dimension of key housing portion 302 is unanimous with a word breach 101 of pivot tip, the inside spline groove 302A that is equipped with of key housing portion 302.

The rotating shaft 1 is further provided with a bearing 4, the bearing 4 is axially fixed through a first retaining ring 5 sleeved on the rotating shaft, and the inner spline housing 3 is axially fixed through a second retaining ring 6 sleeved on the rotating shaft.

The utility model discloses a further disclose electric motor rotor is dismantlement frock of internal spline housing device for axle: the gasket is provided with a ram 7, one end of the ram 7 is a thread section 701 with the same size as a thread groove opening in the gasket, the other end of the ram 7 is the position with the largest circumferential size, and a sleeve 8 is further arranged at the circumferential position of the ram.

The utility model discloses an installation is: firstly, assembling an inner spline housing and a gasket; then the inner spline housing is assembled with the shaft, and due to small interference fit, a practical wooden hammer is lightly driven into the spline housing, and the spline housing is aligned with the groove and driven in place; then the bearing is hot-mounted on the shaft and is mounted in place; then install first retaining ring to the retaining ring ditch department that is close to the bearing, prevent bearing axial float, install the second retaining ring at last and prevent the axial float of internal spline cover to the retaining ring ditch department in the outside.

The utility model discloses a dismantlement process is: if the spline is worn and damaged, the screw hole is arranged on the gasket inside the spline housing, the retainer ring of the fixed spline housing is firstly detached, then the tool for detaching the inner spline housing is used, the threaded part at the front end is screwed into the threaded hole of the gasket, the gasket is matched with the spline housing through the threaded groove, the smooth screwing of the threads is guaranteed, after the gasket is screwed, the sleeve on the tool repeatedly impacts the rear end of the tool, the gasket is driven by impact force to move outwards, and finally the inner spline housing is detached.

Claims

1. The utility model provides an internal spline housing device for electric motor rotor axle, includes the pivot, its characterized in that: the end part of the rotating shaft is provided with a straight notch, a stepped notch is formed in the rotating shaft, the gasket is arranged in the stepped notch, the outer side of the gasket is abutted against the stepped notch of the rotating shaft, a threaded notch is formed in the gasket, an inner spline housing is arranged on one side of the gasket and comprises a circumferential part, the overall dimension of the circumferential part is consistent with that of the stepped notch, the circumferential part is abutted against the gasket, the inner spline housing also comprises a key housing part, the overall dimension of the key housing part is consistent with the straight notch of the end part of the rotating shaft, and a spline groove is formed in the key housing part; the rotating shaft is further provided with a bearing, the bearing is axially fixed through a first retaining ring sleeved on the rotating shaft, and the inner spline sleeve is axially fixed through a second retaining ring sleeved on the rotating shaft.

2. The utility model provides a dismantlement frock of internal spline cover device for electric motor rotor axle which characterized in that: the gasket is provided with a ram, one end of the ram is a thread section with the same size as the thread notch in the gasket, the other end of the ram is a position with the largest circumferential size, and a sleeve is further arranged at the circumferential position of the ram.