Search International and National Patent Collections

1. (WO2017157107) AXIAL MAGNETIC LEVITATION BEARING

Pub. No.:    WO/2017/157107    International Application No.:    PCT/CN2017/072200
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Tue Jan 24 00:59:59 CET 2017
IPC: F16C 32/04
Applicants: GREE GREEN REFRIGERATION TECHNOLOGY CENTER CO., LTD. OF ZHUHAI
珠海格力节能环保制冷技术研究中心有限公司
Inventors: ZHANG, Fang
张芳
HU, Yusheng
胡余生
ZHANG, Xiaobo
张小波
LIU, Jianning
刘健宁
GONG, Gao
龚高
TIAN, Siyuan
田思园
JIA, Jinxin
贾金信
GUO, Changguang
郭长光
LI, Guanghai
李广海
SU, Jiuzhan
苏久展
ZHANG, Chao
张超
Title: AXIAL MAGNETIC LEVITATION BEARING
Abstract:
An axial magnetic levitation bearing comprises a bearing body (100) and a protective device (200). The bearing body (100) comprises a stator and a rotor. The protective device (200) comprises a first assembly fixedly mounted relative to the stator and a second assembly fixedly mounted relative to the rotor. One of the first assembly and the second assembly comprise a first stopping portion (10, 17), and the other of the first assembly and the second assembly comprise a second stopping portion (9, 15) and a third stopping portion (13, 18). A part of the first stopping portion (10, 17) is axially located between the second stopping portion (9, 15) and the third stopping portion (13, 18), and a protection gap of the protective device (200) is smaller than a working gap of the bearing body (100). The bearing body (100) of the axial magnetic levitation bearing can be separated from the protective device (200), so that if the magnetic levitation system becomes unstable, it is the protective device (200), and not the more complex and sensitive axial magnetic levitation bearing body (100), that bears the brunt of the damage, thereby achieving the objective of protecting the axial magnetic levitation bearing.