Method for disassembling and assembling motor bearing without disassembly

Abstract

The invention discloses a method for disassembling and assembling a motor bearing without disassembly, which comprises the steps of inserting a mounting rod on the end surface of an end cover, and sequentially mounting a clamping positioning member and an abutting positioning member; pressing the outer end surface of a rotor rotating shaft through the abutting positioning member for positioning, and pulling out an old bearing assembly in the axial direction; adjusting the clamping positioning member to clamp the rotor rotating shaft for positioning, adjusting the abutting positioning member toenable the abutting positioning member to release the pressing for the rotor rotating shaft, and pulling out the old bearing assembly from the outer end of the rotor rotating shaft in the axial direction; sliding a new bearing assembly into the space between the clamping positioning member and the abutting positioning member from the outer end of the rotor rotating shaft in the axial direction, adjusting the abutting positioning member to enable the abutting positioning member to press the outer end surface of the rotor rotating shaft again, and then adjusting the clamping positioning memberto loosen the rotor rotating shaft; and sliding the new bearing assembly to a mounting position on the rotor rotating shaft in the axial direction. According to the invention, the disassembly-free disassembly and replacement of the motor bearing can be achieved, the disassembly and replacement efficiency is improved, and rotor displacement in the disassembly and replacement process is avoided.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a method for disassembling and assembling motor bearings without disassembly. Background technique [0002] With the rapid development of rail transit, the operation and maintenance requirements and technical level of rail vehicles are increasing day by day. [0003] Traction motors are commonly used for power drive on railway main line electric locomotives, industrial and mining electric locomotives, electric drive diesel locomotives and various electric vehicles. The traction motor mainly includes a rotor and a stator, and its operating principle is the same as that of an ordinary motor. In order to ensure the smooth and unimpeded rotation of the rotor, bearings are installed on the rotor. The working status and maintenance requirements of each component on the vehicle are different, and the rotor bearing is the core force-bearing component. In order to ensure the safe operati...

AI Technical Summary

Problems solved by technology

The entire replacement process is complex and time-consuming, and it is difficult to accurately reset the rotor shaft to the axis position during the process of dismantling and reassembling the motor. There is a risk of damage to the motor due to human error. Buried quality hidden dangers

[0006] Therefore, how to realize the dismantling-free replacement of motor bearings, improve the replacement efficiency, and avoid the rotor displacement during the replacement process is a technical problem faced by those skilled in the art.

Images