High-reliability motor bearing structure

Abstract

The invention discloses a high-reliability motor bearing structure. The structure comprises a stop block which is in contact with one end of a rotor in a motor. The axis of the rotor is provided withan axially extending output shaft, and the output shaft penetrates through the stop block. The structure further comprises a bearing which is assembled with one end of the output shaft. The stop blockis located between the rotor and the bearing, and the bearing is a radial bearing sequentially composed of an inner ring, a ball and an outer ring from the centroid to the outside. The structure further comprises an end cover which wraps the shaft end of the motor. The end cover is provided with a pit for accommodating the bearing. The side wall of the pit is in contact with the outer ring of thebearing, and the bottom of the pit is in contact with the shaft end on one side of the bearing. The structure further comprises a compression spring. The output shaft is sleeved with the compressionspring. One end of the compression spring makes contact with the stop block, and the other end of the compression spring makes contact with the inner ring of the bearing. The elastic force is appliedto the bearing on the motor all the time, so that the bearing is prevented from being loosened and abraded after being used for a long time. The noise of the motor can be reduced, and meanwhile the rotating resistance of the motor is not increased.

Description

technical field [0001] The invention relates to the field of motor accessories, in particular to a high-reliability motor bearing structure. Background technique [0002] The bearing installation method of the existing motor is basically to add a wave ring at one end, and the bearing is fixed on the end covers at both ends by glue. In the initial stage of such a structure, the bearing has a pre-tightening force, and the operation is relatively stable, but after a period of use, due to the wear of the bearing, the clearance of the bearing will reappear, so that the noise of the motor during operation will be reduced. increase, while the life of the bearing will be greatly reduced. It is necessary to improve the overall service life of the bearings on the motor and reduce the noise during use. Contents of the invention [0003] The problem to be solved by the present invention is to provide a high-reliability motor bearing structure, which can provide a constant elastic fo...

AI Technical Summary

Problems solved by technology

In the initial stage of such a structure, the bearing has a pre-tightening force, and the operation is relatively stable, but after a period of use, due to the wear of the bearing, the clearance of the bearing will reappear, so that the noise of the motor will be reduced during operation. increase, while the life of the bearing will be greatly reduced

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