A method for disassembling and assembling motor bearings without disassembly

Abstract

The invention discloses a method for disassembling and assembling a motor bearing without disassembly, comprising: inserting a mounting rod on the end face of an end cover, and sequentially installing a clamping positioning piece and an abutting positioning piece; pressing the outer end surface of the rotor shaft through the abutting positioning piece for positioning, and pull out the old bearing assembly in the axial direction; adjust the clamping positioning part to clamp the rotor shaft for positioning, and at the same time adjust the abutting positioning part to break away from the compression of the rotor shaft, and then insert the old Pull the bearing assembly axially from the outer end of the rotor shaft; slide the new bearing assembly axially from the outer end of the rotor shaft between the clamping locator and the abutment locator, and adjust the abutment locator Make it press against the outer end surface of the rotor shaft again, and then adjust the clamping positioning piece to loosen the rotor shaft; slide the new bearing assembly axially to the installation position on the rotor shaft. The invention can realize the dismantling-free replacement of the motor bearing, improve the replacement efficiency, and avoid the displacement of the rotor during the replacement process.

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.

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