Internally-installed ring-type permanent magnet magnetic bearing and machining method thereof

Abstract

The invention discloses an internally-installed ring-type permanent magnet magnetic bearing and a machining method thereof. The internally-installed ring-type permanent magnet magnetic bearing comprises a rotor and a stator. The stator comprises an annular stator magnet, a stator outer sleeve, a stator upper cover and a stator lower cover. The rotor comprises a rotor magnet, a rotating shaft sleeve and a rotor magnet outer sleeve. The stator magnet is annular, and the interior of the stator magnet is provided with a clamping groove. The exterior of the stator magnet is fixedly provided with the annular stator outer sleeve in a sleeved mode. The interior of the clamping groove is provided with the annular rotor magnet, wherein the shape of the rotor magnet is the same as the clamping groove. The interior of the rotor magnet is fixedly provided with the annular rotating shaft sleeve in a sleeved mode. The rotating shaft sleeve is internally provided with a rotating shaft. The periphery of the middle of the exterior of the rotor magnet is fixedly provided with the rotor magnet outer sleeve in a sleeved mode. The internally-installed ring-type permanent magnet magnetic bearing utilizesthe fact that the same permanent magnets are repelled with each other, mechanical friction can be eliminated, abrasion, energy consumption and noise are reduced, lubrication is not required, and theservice life is long, so that the problems such as abrasion, noise and heating of an existing bearing are solved, the mechanical production efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of bearings, in particular to a permanent magnet magnetic bearing in the form of a built-in ring and a processing method thereof. Background technique [0002] At present, bearings commonly used in the machinery industry include rolling bearings, sliding bearings, joint bearings, etc. Under the action of periodic loads, the bearing surface is prone to fatigue damage, that is, cracks and spalling occur, which is an important damage situation for bearings; in addition, bearings During operation, not only rolling friction but also sliding friction occurs between the ferrule, rolling element and cage, which causes the bearing parts to wear; due to the mechanical contact between the relatively moving parts, wear, Noise, heat and other problems, thus reducing the production efficiency of the machine; and in order to make the bearing fully play and maintain its due performance for a long time, the bearing needs to be maintai...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a permanent magnet magnetic bearing in the form of a built-in ring and a processing method thereof. The bearing device uses permanent magnets to repel each other with the same sex, which

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