A process for dismantling and replacing motor bearings without dismantling

Abstract

The invention discloses a process for dismantling and replacing motor bearings without dismantling, which includes: supporting and positioning the bottom of the rotor shaft through a first support member and a second support member at at least two preset positions along the axial direction; Second support and remove it from support of the rotor shaft, pull out the old bearing assembly between the first support and the second support; move the second support so that it re-supports the rotor shaft while moving the second One support and out of support for the rotor shaft, pull the old bearing assembly off the outer end of the rotor shaft; slide the new bearing assembly in from the outer end of the rotor shaft, and move the first support so that It re-supports the rotor shaft, then moves the second support out of support of the rotor shaft; slides the new bearing assembly axially into place 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 process for dismantling and replacing 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 operation...

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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