Axial magnetic suspension bearing

A magnetic levitation bearing, axial technology, applied in the direction of magnetic bearings, shafts and bearings, bearings, etc., can solve the problems of difficult control of product qualification rate, inability to directly adjust, poor quality flexibility, etc., to eliminate multiple heat-loaded bearing rotors, It is easy to adjust the protection gap and avoid the effect of reducing the amount of interference

Active Publication Date: 2016-05-11
GREE ELECTRIC APPLIANCES INC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In this technical solution, the protection gap between each axial protection bearing and the thrust disc and the working gap between each axial iron core and the thrust disc are completely guaranteed by the assembly accuracy and machining accuracy, and cannot be directly adjusted, and the product qualification rate is relatively difficult. Control, quality flexibility is poor, and the thrust plate often needs to be disassembled and assembled multiple times during indirect adjust

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  • Axial magnetic suspension bearing
  • Axial magnetic suspension bearing
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Embodiment Construction

[0024] see figure 1 and figure 2 , the present invention provides an axial magnetic suspension bearing in view of the aforementioned status of the prior art, which includes a bearing body 100 and a protection device 200, and the bearing body 100 includes a stator and a rotor. Wherein, the protection device 200 includes a first assembly fixedly installed relative to the stator and a second assembly fixedly installed relative to the rotor, one of the first assembly and the second assembly includes a first Stops (for example, figure 1 The part indicated by the number 10 in, or figure 2 17), the other of the first assembly and the second assembly includes a second stopper (for example, figure 1 The parts indicated by the number 9 in, or figure 2 Parts indicated by the number 15) and the third stopper (for example, figure 1 The part indicated by the number 13 in, or figure 2 18), a part of the first stop part is located between the second stop part and the third stop ...

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Abstract

The invention discloses an axial magnetic suspension bearing which comprises a bearing body and a protecting device, wherein the bearing body comprises a stator and a rotor, wherein the protecting device comprises a first component which is fixedly mounted relative to the stator and a second component which is fixedly mounted relative to the rotor; one of the first component and the second component comprises a first stopping part; the other one of the first component and the second component comprises a second stopping part and a third stopping part; one part of the first stopping part is positioned between the second stopping part and the third stopping part in the axial direction; and a protective gap of the protecting device is smaller than a working gap of the bearing body. According to the axial magnetic suspension bearing disclosed by the invention, the bearing body and the protecting device can be separated, so that when a magnetic suspension system is unstable, the protecting device is preferably damaged, a complex and precision axial magnetic suspension bearing body is prevented from being damaged, and further the aim of protecting the axial magnetic suspension bearing is achieved.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to an axial magnetic suspension bearing. Background technique [0002] Magnetic suspension bearings use magnetic force to suspend the rotor in the air relative to the stator, so that there is no mechanical contact between the rotor and the stator. Compared with traditional rolling bearings, sliding bearings, etc., the rotor of magnetic bearing can run to a very high speed, so it is usually used in high-speed and ultra-high-speed occasions, such as some high-speed, ultra-high-speed machines. In this type of machine, the magnetic suspension bearing is a very critical component. Once the magnetic suspension system fails, the magnetic suspension product will not be able to start the suspension, and will not be able to operate normally, often resulting in production losses. Therefore, corresponding protection devices need to be equipped when designing magnetic suspension bearings. [...

Claims

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Application Information

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IPC IPC(8): F16C32/04
CPCF16C32/0406F16C32/0476F16C2380/26H02K7/09H02K7/10
Inventor 张芳胡余生张小波刘健宁龚高田思园贾金信郭长光李广海苏久展张超
Owner GREE ELECTRIC APPLIANCES INC
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