Halbach permanent magnetic bearing obtained by lap piling of permanent magnetic rings having triangular sections

A permanent magnet bearing and permanent magnet ring technology, applied in the fields of machinery and mechanics, can solve the problems of electromagnetic and superconducting magnetic bearing power consumption, complex structure, friction loss, etc., to save permanent magnet materials, reduce maintenance costs, and adapt to the environment. strong effect

Inactive Publication Date: 2014-08-27
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a Halbach permanent magnetic bearing structure using a triangular cross-section permanent magnetic ring stack, which solves the problems of friction loss in mechanical bearings in the prior art, power consumption and complex structure in electromagnetic and superconducting magnetic bearings

Method used

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  • Halbach permanent magnetic bearing obtained by lap piling of permanent magnetic rings having triangular sections
  • Halbach permanent magnetic bearing obtained by lap piling of permanent magnetic rings having triangular sections
  • Halbach permanent magnetic bearing obtained by lap piling of permanent magnetic rings having triangular sections

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to figure 1 , the present invention adopts the structure of the Halbach permanent magnet bearing stacked with triangular cross-section permanent magnet rings, including the rotor 1 and the stator 4 which are arranged correspondingly, and a plurality of groups of moving magnet rings 2 are stacked on the shaft circumference of the rotor 1, and inside the stator 4 Multiple sets of static magnetic rings 3 are stacked on the circular surface, multiple sets of moving magnetic rings 2 and multiple sets of static magnetic rings 3 are respectively stacked to form a cylindrical shape.

[0024] The rotating shaft 1 and the stator 4 are made of iron and steel, and the moving magnetic ring 2 fixed on the rotating shaft 1 and the static magnetic ring 3 fixed on the stator 4 are made of permanent magnetic materials. Both the moving magnet ring...

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Abstract

The invention discloses a Halbach permanent magnetic bearing obtained by lap piling of permanent magnetic rings having triangular sections. The Halbach permanent magnetic bearing comprises a rotor and a stator corresponding to the rotor. Multiple movable magnet rings are piled around the shaft of the rotor. Multiple static magnet rings are piled on the inner circle surface of the stator. The multiple static magnet rings and multiple movable magnet rings are respectively piled to form cylindrical structures. The movable magnet rings and the static magnet rings are obtained by lap piling of the permanent magnetic rings having triangle sections according to a Halbach array. The movable magnet rings and the static magnet rings comprise the permanent magnetic rings having triangle sections and different radiuses. The invention also discloses a magnetic force determination method of the Halbach permanent magnetic bearing obtained by lap piling of the permanent magnetic rings having triangle sections. The device and method have the advantages that obvious improvement of a radial force or an axial force is realized, a permanent magnet material is saved, an operation process is simple and accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of machinery and mechanics, and relates to a Halbach permanent magnetic bearing adopting stacked triangular cross-section permanent magnetic rings, and also relates to a method for determining the magnetic force of the Halbach permanent magnetic bearing adopting triangular cross-section stacked permanent magnetic rings. Background technique [0002] Wind turbines supported by traditional mechanical bearings require high starting wind speed and high wind speed for power generation. Therefore, traditional wind turbines must be installed in areas with high wind speeds. At present, one of the important reasons restricting the popularization and application of wind turbines is that the traditional wind turbines have a large starting resistance torque, which requires a relatively large starting wind speed to drive the generator rotor to rotate for power generation. The main factor affecting the starting resistance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/04
Inventor 田录林徐银凤田琦田亚琦
Owner XIAN UNIV OF TECH
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