Title:
MAGNETIC LIQUID DOUBLE SUSPENSION BEARING
Document Type and Number:
WIPO Patent Application WO/2023/147793
Kind Code:
A3
Abstract:
A magnetic liquid double suspension bearing, which comprises a main shaft (4), a stator (2) and a rotor (3), wherein a housing (1) of the stator (2) is internally provided with radial magnetic poles (18) and a flux sleeve (12), the radial magnetic poles (18) are arranged in pairs, each radial magnetic pole (18) is provided with a radial coil (33) and a radial oil intake hole (15), and an end portion of each radial magnetic pole (18) is provided with a non-magnetic conduction porous medium gasket; axial magnetic poles (14) are further fixed in an axial direction of the stator (2) and are arranged in pairs, axial coils (9) are sleeved on the axial magnetic poles (14), the axial magnetic poles (14) on two sides of the rotor (3) form magnetic flux loops with a first permanent magnet (13) and a second permanent magnet (35) respectively, and outer diameter sides of the permanent magnets (13, 35) are provided with carbon fiber coated reinforcing layers; and the stator (2) is axially provided with an axial oil inlet (16) and an axial winding hole (19), and is radially provided with an oil outlet (36) and a radial winding hole (11). The radial magnetic liquid double suspension bearing and the axial magnetic liquid double suspension bearing are combined into a whole, such that the axial length of the whole magnetic liquid double suspension system is significantly shortened, the magnetic liquid double suspension system is suitable for a narrow space, and processing and assembling errors of the bearing are reduced.
Inventors:
CHEN LIWEN (CN)
CUI BINGYAN (CN)
LONG HAIYANG (CN)
MA ZHE (CN)
SHANG LIN (CN)
WU WEIYING (CN)
CUI BINGYAN (CN)
LONG HAIYANG (CN)
MA ZHE (CN)
SHANG LIN (CN)
WU WEIYING (CN)
Application Number:
PCT/CN2023/096718
Publication Date:
February 22, 2024
Filing Date:
May 29, 2023
Export Citation:
Assignee:
UNIV NORTH CHINA SCIENCE & TECHNOLOGY (CN)
International Classes:
F16C32/04; F16C32/06
Foreign References:
| CN109139694A | 2019-01-04 | |||
| CN108488232A | 2018-09-04 | |||
| CN103244555A | 2013-08-14 | |||
| CN108050157A | 2018-05-18 | |||
| CN108050158A | 2018-05-18 | |||
| EP0693630A2 | 1996-01-24 | |||
| JPH02304514A | 1990-12-18 |
Attorney, Agent or Firm:
BEIJING FINELAND IP FIRM (CN)
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