Magnetic suspension motor without thrust disc and work method thereof

A magnetic levitation, no thrust technology, applied in the direction of holding devices, electrical components, electromechanical devices, etc. with magnetic attraction or thrust, can solve the problem of volatile magnetism, inconvenient assembly or disassembly of the rotor core shaft of radial magnetic levitation bearings, permanent magnet body temperature, etc. To solve problems such as rise and large, to achieve smooth flow channels, solve the problem of easy loss of magnetism, and have a good cooling effect

Active Publication Date: 2017-06-13
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

Because the existence of the large-diameter thrust plate blocks the flow channel of the cooling medium, the temperature of the permanent magnet increases and it is easy to lose mag

Method used

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  • Magnetic suspension motor without thrust disc and work method thereof
  • Magnetic suspension motor without thrust disc and work method thereof

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Embodiment Construction

[0018] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0019] The invention discloses a magnetic levitation motor without a thrust disk and a working method thereof, and relates to the technical field of magnetic levitation motors. The magnetic suspension motor structure includes a working machine 1, a left protective bearing 2-1, a left axial magnetic suspension bearing 3-1, a left radial magnetic suspension bearing 4-1, a high-speed motor 5, a right radial magnetic suspension bearing 4-2, and a right axial magnetic suspension bearing 4-1. Magnetic suspension bearing 3-2, right protection bearing 2-2, rotor core shaft 6. The rotor mandrel 6 has a symmetrical structure, and it consists of a middle section, a second left section and a second right section located outside the middle section, and a third left section and a third right section located outside the second left and right sections. Th...

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Abstract

The present invention discloses a magnetic suspension motor without a thrust disc and a work method thereof, and relates to the magnetic suspension motor technology field. The magnetic suspension motor comprises a working machine (1), a left protective bearing (2-1), a left axial direction magnetic suspension bearing (3-1), a left radial direction magnetic suspension bearing (4-1), a high-speed motor (5), a right radial direction magnetic suspension bearing (4-2), a right axial direction magnetic suspension bearing (3-2), a right protective bearing (2-2) and a rotor mandrel (6). The electromagnetic force between the radial direction magnetic suspension bearings and radial direction permeability magnetic materials (8) and the electromagnetic force between the axial direction magnetic suspension bearings and radial direction permeability magnetic materials (7) perform active control of radial direction displacement and axial direction displacement of the rotor mandrel (6). The magnetic suspension motor without a thrust disc and a work method thereof omit a thrust disc (9) to facilitate assembling and cooling of the magnetic suspension motor, and the rotor dynamics performance can satisfy the requirement of high-speed rotation.

Description

technical field [0001] The patent of the present invention relates to the technical field of magnetic levitation, in particular to the application field of a magnetic levitation motor. Background technique [0002] In the magnetic levitation motor structure, the traditional magnetic levitation motor structure includes a working machine (impeller or other load), left protective bearing, left radial magnetic levitation bearing, high-speed motor, left axial magnetic levitation bearing, thrust disc, right axial magnetic levitation bearing, right Radial magnetic suspension bearing, right protection bearing, rotor mandrel. The rotor core shaft is covered with a magnetic material at the corresponding position of the radial magnetic suspension bearing. The electromagnetic force between the magnetic material and the radial magnetic suspension bearing can actively control the radial displacement of the rotor core shaft. The electromagnetic force can actively control the axial displac...

Claims

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Application Information

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IPC IPC(8): H02K7/09H02K9/00H02N15/00
CPCH02K7/09H02K9/00H02N15/00
Inventor 金超武徐龙祥周瑾汪蕾
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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