Motors with thrust bearings

Abstract

A motor with a thrust bearing is used to solve the problem of poor rotation smoothness of the existing motor; it includes a base, a bearing sleeve, a stator, a rotating part, a thrust bearing and a wheel hub. The base is provided with the bearing sleeve; the stator is combined with the base or the bearing sleeve; the rotating part is combined inside the bearing sleeve, and the rotating part includes a rotating shaft and a limiting part, and the limiting part has a first A contact surface; the thrust bearing is disposed between the inner peripheral wall of the bearing sleeve and the rotating shaft, and the thrust bearing has a second contact surface, and the second contact surface is in contact with at least one of the first contact surfaces The surface is not flat; the hub is combined with the rotating shaft, and the hub is provided with a permanent magnet opposite to the stator.

Description

Technical field [0001] The present invention relates to a motor with a thrust bearing, in particular to a motor capable of stable rotation. Background technique [0002] Please refer to figure 1 As shown, the conventional motor 9 with thrust bearing includes a bracket 91, a stator 92 and a rotor 93. The bracket 91 is combined with a bearing housing 911. A thrust bearing 912 and a thrust plate 913 are arranged inside the bearing housing 911. The opposite ends of the bearing housing 911 have an opening respectively, and one end of the bearing housing 911 is open for the rotor 93 Combined, the other end of the opening is combined with a cover 914; the stator 92 is combined with the outer peripheral wall of the bracket 91; the rotor 93 has a hub 931, the hub 931 integrally forms a ring flange 932 and a rotating shaft 933, the ring The flange 932 is located between the bracket 91 and the bearing housing 911 to provide functions such as dust prevention or oil leakage prevention. The r...

AI Technical Summary

Problems solved by technology

[0003] When the rotor 93 of the conventional motor 9 described above rotates relative to the thrust bearing 912, since the opposing surfaces of the thrust plate 913 and the thrust bearing 912 are attached to each other, the thrust plate 913 and the thrust bearing 912 are in contact with each other. The contact portion of the thrust bearing 912 is in a "completely attached" state (such as figure 1 F shown), during the rotation of the rotor 93, the frictional resistance between the thrust plate 913 and the thrust bearing 912 increases, which easily affects the smooth rotation of the rotor 93, so it is necessary to improve

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