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A magnetic levitation rotor support system, a magnetic levitation bearing, and a bias magnetic weight reduction device

A magnetic suspension bearing and magnetic suspension rotor technology, applied in the field of magnetic suspension, can solve the problems of reduced practicability, inability to guarantee, uncertain axial force or radial force, etc.

Inactive Publication Date: 2015-12-16
张玉宝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: in the permanent magnet magnetic suspension bearing, the suspension mechanism of "same sex repulsion" will lead to the generation of uncertain axial force or radial force
Among the electromagnetic magnetic suspension bearings, multiple centripetal electromagnets and complex feedback control technology are used, but in the end it cannot be guaranteed that the rotor will be automatically aligned in any direction of 360 degrees and the existing technology in the magnetic circuit The design also suffers from a large number of non-operating air gaps, reducing the utility of existing technologies

Method used

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  • A magnetic levitation rotor support system, a magnetic levitation bearing, and a bias magnetic weight reduction device
  • A magnetic levitation rotor support system, a magnetic levitation bearing, and a bias magnetic weight reduction device
  • A magnetic levitation rotor support system, a magnetic levitation bearing, and a bias magnetic weight reduction device

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Embodiment Construction

[0047] The single-degree-of-freedom magnetic levitation rotor support system of the present invention will be further described below in conjunction with the accompanying drawings.

[0048] according to figure 1 As shown, the single-degree-of-freedom magnetic levitation rotor support system of the present invention is to combine the stator parts of two outer rotor unilateral disc reluctance motors 1 and 2 with axial air gaps back to back to make it a double Variant structure. Then, on the middle part outside the stator part of the double-sided disc reluctance motor, the primary iron core of the electromagnetic axial magnetic suspension bearing 3 is arranged and the secondary iron core of the electromagnetic axial magnetic suspension bearing 3 is arranged on the motor casing corresponding to the primary iron core. core. The shallow groove with inward radial opening on the secondary core is aligned with the outward annular groove on the primary core through an air gap, and the...

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Abstract

The invention discloses a single freedom degree magnetic levitation rotor support system, a magnetic levitation bearing and a magnetic biasing weight reducing device. The single freedom degree magnetic levitation rotor support system is composed of an attraction type axial magnetic levitation bearing (24), attraction type radial magnetic levitation bearings (25,26), magnetic biasing weight reducing devices (27,28) and air gap limit protective devices (29,30) of the axial and radial magnetic levitation bearings which are all arranged in the same movement mechanism. Active cell parts and stator parts of the axial and radial bearings are composed of a permanent magnetic field or a controllable magnetic device not generating non-work air gap magnetic leakage loss. So long as designing margin of the magnetic field is enough, the system of the invention can operate stably without adopting any form of sensor feedback control technology.

Description

Technical field: [0001] The invention relates to a single-degree-of-freedom magnetic suspension rotor support system in the field of magnetic suspension. In particular, it relates to a single-degree-of-freedom magnetic suspension rotor support system which is composed of an attractive axial magnetic suspension bearing and an attractive radial magnetic suspension bearing. The present invention also relates to more specific attractive axial magnetic suspension bearings and attractive radial magnetic suspension bearings. The invention also relates to a bias magnetic weight reduction device for reducing the force of the rotating body and a limit protection device for air gaps of radial and axial magnetic suspension bearings. Background technique: [0002] In order to meet the development needs of ultra-high-speed motors and vacuum cleaning technology, high-precision machining technology and space technology, a magnetic levitation rotor support system without mechanical contact ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/09H02N15/00F16C32/04
Inventor 张玉宝
Owner 张玉宝
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