Motor bearing mounting method and motor

Abstract

The invention belongs to the motor field and provides a motor bearing mounting method and a motor. The method includes the following steps that: an elastic pad is arranged into the mounting cavity of an end cover, and the elastic pad is made to be pressed by one end surface of a bearing, and the bearing is installed in the mounting cavity of the end cover; a motor rotor is inserted into the inner ring of the bearing, and the shaft shoulder of the motor rotor is made to abut against the bearing; glue is infiltrated into the intersection of the outer ring of the bearing and the end cover, and the motor is assembled when the glue is not solidified; and the motor is arranged and maintained until the glue is completely solidified. According to the motor bearing mounting method, the mounting cavity is arranged in the end cover of the motor; the bearing is installed in the mounting cavity; the elastic pad is arranged between one end surface of the bearing and the end cover; and a gluing layer for fixing the bearing is arranged between the outer ring of the bearing and the side wall of the mounting cavity; and the bearing and the end cover are fixed through the glue, so that an elastic force applied to the bearing by the elastic pad is offset, and therefore, the dummies of the motor rotor in rotation can be decreased, the efficiency of the motor can be improved, and noises inside the motor in operation can be decreased.

Description

technical field [0001] The invention relates to the field of motors, in particular to a method for installing a bearing for a motor and a motor installed using the method. Background technique [0002] The existing technology for fixing the bearing is to adopt a fastening fit assembly method between the bearing and the end cover, and between the bearing inner ring and the rotor at the position where the motor rotor and the end cover are connected. like figure 1 As shown, the method of fixing the outer ring of the bearing in the axial direction generally uses a wave-shaped elastic pad to fix the outer ring of the bearing, and on the other side uses the shoulder of the rotor to fix the inner ring of the bearing to prevent the bearing from moving axially. [0003] like figure 2 As shown, this assembly method has a great disadvantage. The motor rotor and the elastic pad exert pressure at the same time, so that the bearing inner ring and the bearing outer ring simultaneously s...

AI Technical Summary

Problems solved by technology

However, in the production of this type of method, mechanical tolerances will cause the rotor to have a void in the axial direction or be too tightly matched to cause excessive friction. If there is a void, there will be vibration inside the motor and there will be noise problems

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