Title:
RADIAL TWO-DEGREE-OF-FREEDOM SIX-POLE ALTERNATING-CURRENT/DIRECT-CURRENT HYBRID MAGNETIC BEARING OF NEW STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/143759
Kind Code:
A1
Abstract:
Disclosed is a radial two-degree-of-freedom six-pole alternating-current/direct-current hybrid magnetic bearing. The bearing comprises a stator and a rotor, wherein the stator comprises three control iron cores (2, 8, 10), three radial magnetization permanent magnet rings (3, 7, 9) and an annular magnetic bridge (1); two suspension teeth (201, 202, 801, 802, 1001, 1002) are uniformly distributed along the inner circumferences of the control iron cores (2, 8, 10), the two suspension teeth (201, 202, 1001, 1002) on the left and right control iron cores (2, 10) are bent inwards, have the same axial width as that of the suspension teeth (801, 802) on the middle control iron core (8) and a rotor iron core (5) and are coplanar in the radial direction, the six suspension teeth (201, 202, 801, 802, 1001, 1002) are mutually deviated by 60 degrees on the circumference, and the width of the suspension teeth (801, 802) on the middle control iron core (8) is twice the width of the suspension teeth (201, 202, 1001, 1002) on the left and right control iron cores (2, 10); centralized control windings (601-606) are wound on the six suspension teeth (201, 202, 801, 802, 1001, 1002); and the rotor comprises the rotor iron core (5) and a rotary shaft (4). The three permanent magnet rings (3, 7, 9) provide static bias magnetic flux for the three control iron cores (2, 8, 10) respectively, radial control magnetic flux generated by electrifying the radial control windings (601-606) only forms a closed path in the respective control iron cores (2, 8, 10), suspension force control is free of coupling, and control is simple.
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Inventors:
YE XIAOTING (CN)
CHEN JIE (CN)
ZHOU ZHAOWEN (CN)
ZHANG TAO (CN)
WU SHASHA (CN)
LU QING (CN)
MO LIHONG (CN)
CHEN WAN (CN)
CHEN JIE (CN)
ZHOU ZHAOWEN (CN)
ZHANG TAO (CN)
WU SHASHA (CN)
LU QING (CN)
MO LIHONG (CN)
CHEN WAN (CN)
Application Number:
PCT/CN2021/071728
Publication Date:
July 22, 2021
Filing Date:
January 14, 2021
Export Citation:
Assignee:
HUAIYIN INST TECHNOLOGY (CN)
International Classes:
F16C32/04
Foreign References:
| CN111075839A | 2020-04-28 | |||
| CN101251149A | 2008-08-27 | |||
| JP2007056892A | 2007-03-08 | |||
| CN102384162A | 2012-03-21 | |||
| CN107289003A | 2017-10-24 | |||
| CN107165936A | 2017-09-15 | |||
| CN101886669A | 2010-11-17 | |||
| EP3115616A1 | 2017-01-11 | |||
| JPH11101235A | 1999-04-13 |
Attorney, Agent or Firm:
HUAIAN KEWEN INTELLECTUAL PROPERTY OFFICE (CN)
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