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Title: Passive magnetic bearing and assemblies thereof
Other Titles: 被动式磁悬浮轴承及其组件
Authors: Yang, K
Yang, HX 
Lin, L 
Fu, WN 
Issue Date: 1-Apr-2015
Publisher: 中华人民共和国国家知识产权局
Source: 中国专利 ZL 201110327717.3 How to cite?
Abstract: The invention discloses a passive magnetic bearing and assemblies thereof. The passive magnetic bearing comprises a rotating shaft and a rotor assembly and one or more stator assemblies which are arranged on the rotating shaft. The stator assembly comprises a disk-shaped stator disc and a plurality of same block permanent magnets embedded in the stator disc; a bottom surface of the stator disc is provided with a plurality of sets of concentric annular stator grooves used for installation of the permanent magnets; each set of stator grooves comprises four annular stator grooves, permanent magnets of same polarity are disposed in a first stator groove and a fourth stator groove in terms of radial column numbers along the stator disc, and permanent magnets of same polarity but with polarity different from the polarity of the permanent magnets disposed in the first stator groove and the fourth stator groove are disposed in a second stator groove and a third stator groove. The rotor assembly comprises a disk-shaped rotor disc and a plurality of same block permanent magnets embedded in the rotor disc; and the bottom surface of the rotor disc is provided with rotor grooves in one-to-one correspondence to the stator grooves for installation of the permanent magnets. The passive magnetic bearing provided by the invention has the advantages of low cost, easy preparation and stable operation.
Rights: 专利权人: The Hong Kong Polytechnic University.
Appears in Collections:Patent

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