A method for disassembling and disassembling a motor bearing for preventing over-positioning

Abstract

The invention discloses a disassembly-free disassembly and assembly method for an over-positioning-proof motor bearing, comprising: pushing a rotating shaft axially to move a preset distance to drive an inner sealing ring fixed on the surface of the far end of the rotating shaft and the inner wall of the far end cover Butt against each other in the axial direction; insert and install several long ejector rods from several mounting holes reserved on the proximal end cover, and make the ends of each long ejector rod fit with the center surface of the rotating shaft. The rotor pressure ring is butted against each other; the positioning bearing assembly is replaced at the far end of the rotating shaft, and the non-locating bearing assembly is replaced at the proximal end of the rotating shaft; each long ejector rod is removed, and the positioning bearing seat in the positioning bearing assembly The end caps are fitted in place to reset the shaft axially in reverse. The invention can realize the dismantling-free replacement of the motor bearing, improve the replacement efficiency, and avoid over-positioning of the positioning bearing during the replacement process.

Description

technical field [0001] The invention relates to the technical field of electric motors, in particular to a disassembly and assembly method for preventing over-positioning electric motor bearings. Background technique [0002] The bearing is the core component in the motor, which is used to support the rotation of the rotor and ensure the smooth operation of the motor. Its function determines that it is more prone to wear and needs to be replaced regularly. Most of the current motor bearings need to be disassembled when being repaired and replaced, the rotor of the motor is pulled out from the motor, and then the bearing is pulled out using a specific device. It takes a long time to disassemble the motor, and in the process of dismantling and reassembling, there is a risk of damage to the motor due to human error, which lays a quality risk for the safe operation of the motor. [0003] The replacement process of traditional motor bearings: Disassemble the motor, pull the rot...

AI Technical Summary

Problems solved by technology

However, due to the widespread manufacturing deviation of parts, there is a high probability that the assembly position relationship between the bearing seat and the end cover will change, which will easily lead to the incorrect installation of the bearing and cause product quality problems

[0006] Therefore, how to realize the dismantling-free replacement of motor bearings, improve the replacement efficiency, avoid over-positioning of the positioning bearings during the replacement process, and improve product quality are technical problems faced by those skilled in the art.

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