Shaft detection method and device for magnetic suspension system

A detection method and detection device technology, applied in the field of magnetic levitation, can solve the problems of easy damage of the magnetic levitation system, and achieve the effect of avoiding damage

Active Publication Date: 2015-03-25
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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[0004] The main purpose of the present invention is to provide a shaft detection method and device in

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  • Shaft detection method and device for magnetic suspension system
  • Shaft detection method and device for magnetic suspension system
  • Shaft detection method and device for magnetic suspension system

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[0030] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present invention will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0031] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] It should be noted that the terms "first" an...

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Abstract

The invention discloses a shaft detection method and a device for a magnetic suspension system. The shaft detection method for the magnetic suspension system comprises steps that, a displacement of a shaft deviating from the center position in the magnetic suspension system is detected; whether a fault that the shaft bumps a protection bearing exists is determined according to the detection result; when the fault that the shaft bumps the protection bearing exists is determined, a motor in the magnetic suspension system is controlled to stop rotation. Through the shaft detection method, the magnetic suspension system can be avoided from being damaged.

Description

technical field [0001] The invention relates to the field of magnetic levitation, in particular to a shaft detection method and device in a magnetic levitation system. Background technique [0002] Magnetic suspension bearings are generally used in high-speed rotating occasions, and the reliability requirements for magnetic suspension bearings are very high. During the rotation of the shaft, the shaft collision protection bearing may fail. After the shaft collision protection bearing fails, if the motor continues to rotate, it is easy to damage the magnetic levitation system. The inventors found that the failure of the shaft collision protection bearing is one of the failures that may cause damage to the magnetic bearing system. However, in the prior art, the failure of the shaft collision protection bearing has not been detected, thus causing the magnetic levitation system to be easily damaged. [0003] Aiming at the problem that the magnetic levitation system is easily da...

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Application Information

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IPC IPC(8): G01B21/02G01M13/04
CPCG01B21/24
Inventor 黄辉胡余生陈东锁胡叨福郭伟林贺永玲
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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