Half-open type thrust magnetic levitation bearing

A magnetic suspension bearing, semi-open technology, applied in the direction of bearings, shafts and bearings, mechanical equipment, etc., can solve problems such as lack of good design, achieve the effect of continuous and consistent magnetic field strength, and solve the problem of continuous magnetic circuit

Pending Publication Date: 2019-09-27
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For magnetic suspension bearings, radial magnetic bearings are easy to make a semi-open structure, while axial thrust bearings must maintain the continuity and consistency of the magnetic circuit on the axial circular magnetic poles, otherwise it will It produces a huge eddy current effect to form a "braking" effect on the shafting. So far, there has been no well-designed semi-open structure design with high-speed practical value.

Method used

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  • Half-open type thrust magnetic levitation bearing

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Embodiment Construction

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0016] The semi-open thrust magnetic suspension bearing proposed according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0017] figure 1 It is a structural schematic diagram of a semi-open thrust magnetic suspension bearing according to an embodiment of the present invention.

[0018] Such as figure 1 As shown, the semi-open thrust magnetic suspension bearing 10 includes: a first magnetic ring 100, a second magnetic ring 200 and a third magnetic ring 300, where...

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Abstract

The invention discloses a half-open type thrust magnetic levitation bearing. The bearing comprises a first magnetic ring, a second magnetic ring and a third magnetic ring, wherein the first magnetic ring, the second magnetic ring and the third magnetic ring are arranged in annular and laminating manners so as to form an annular magnetic pole; the magnetic pole of each of the magnetic rings is different from that of the adjacent magnetic ring; a first winding and a second winding of the annular magnetic pole are wound according to a predetermined half-open way, the lower part of the middle magnetic pole is recessed inwards so as to generate a winding space which meets predetermined conditions; and the magnetic pole arranged at the upper end extends, and thus, a complete circle of magnetic pole is formed after splicing. Based on the bearing, continuity and consistency of magnetic field strength of the magnetic poles of the half-opened axial thrust bearing can be basically reserved, and the half-open type thrust magnetic levitation bearing can be applied to high-speed rotation machines; and moreover, a more flexible mounting way can be obtained, particularly to large-size rotation machines.

Description

technical field [0001] The invention relates to the technical field of high-speed rotating machinery, in particular to a semi-open thrust magnetic suspension bearing. Background technique [0002] The bearings of large-scale high-speed rotating machinery are often designed as semi-open structures, especially for horizontally arranged rotors. The biggest advantage of semi-open structures is that they are easy to install and maintain. For magnetic suspension bearings, radial magnetic bearings are easy to make a semi-open structure, while axial thrust bearings must maintain the continuity and consistency of the magnetic circuit on the axial circular magnetic poles, otherwise it will A huge eddy current effect is generated to form a "braking" effect on the shafting. So far, there has been no well-designed semi-open structure design with high-speed practical value. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the relat...

Claims

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Application Information

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IPC IPC(8): F16C32/04
CPCF16C32/0412
Inventor 徐旸戴兴建张剀
Owner TSINGHUA UNIV
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