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Magnetic suspension rotating shaft

A technology of magnetic suspension bearings and rotating shafts, applied in the field of mechanical equipment, can solve problems such as limiting the critical speed of motors, and achieve the effects of low power consumption and small size

Inactive Publication Date: 2017-02-01
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional magnetic suspension bearing system generally uses two radial magnetic bearings and one axial magnetic bearing to realize the stable suspension of the rotor with five degrees of freedom. These three magnetic bearings occupy a considerable space in the axial direction, which limits the critical speed of the motor

Method used

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  • Magnetic suspension rotating shaft
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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making...

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Abstract

The invention provides a magnetic suspension bearing. The magnetic suspension bearing comprises a stator, a rotor core, a rotating shaft, axial control windings and radial control windings, wherein a gap is reserved between the stator and the rotor core, and an axial control air gap and a radial control air gap are respectively formed in the gap. The magnetic suspension bearing is an axial-radial magnetic suspension bearing, and the traditional magnetic suspension bearing system is replaced with one bearing, so that a rotor can suspend stably at five degrees of freedom; the magnetic suspension rotating shaft is small in size and less in power consumption, thus being suitable for miniaturized application occasions with small volumes.

Description

technical field [0001] The invention relates to the technical field of mechanical equipment, in particular to an axial-radial magnetic suspension bearing. Background technique [0002] Magnetic suspension bearing is a new type of high-performance bearing that uses magnetic field force to suspend the rotor in the space of the stator and rotate stably. There is no mechanical contact between the rotor and the stator, and it has the advantages of no friction loss, no lubrication, long life, etc. that ordinary bearings cannot match. The mechanical part of the magnetic suspension bearing has two types: axial bearing and radial bearing. The axial bearing is composed of a stator (electromagnet) and a thrust plate, and the radial bearing is composed of a stator (electromagnet) and a rotor. [0003] The traditional magnetic suspension bearing system generally uses two radial magnetic bearings and one axial magnetic bearing to realize the stable suspension of the rotor with five degre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04
CPCF16C32/0489F16C2204/60F16C2380/26
Inventor 杨雷宋江锋何康昊李佩龙文明邓立姜飞陈军胡俊
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS