Three-freedom consequent pole permanent magnet motor without bearing of axial direction initiative suspending

A degree of freedom, bearingless technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., can solve the problems of no patents and literature, etc., to reduce volume and power consumption, simple and compact motor structure, easy to modularize and machine processing Effect

Inactive Publication Date: 2008-06-25
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] At present, there is no concept of "three degrees of freedom bearingless motor" at home and abroad, and there are no related patents and documents.

Method used

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  • Three-freedom consequent pole permanent magnet motor without bearing of axial direction initiative suspending
  • Three-freedom consequent pole permanent magnet motor without bearing of axial direction initiative suspending

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Embodiment Construction

[0025] Fig. 1 and Fig. 2 are two-dimensional and three-dimensional schematic diagrams of the three-degree-of-freedom bearingless alternating pole permanent magnet motor with axial active suspension of the present invention, which mainly consists of an axial stator core 1, a radial stator core 2, and a rotor permanent magnet 3 , rotor core 4, rotor shaft 5 components. Among them, two axial stator cores 1 are processed by electrical pure iron, and are respectively installed on the left and right ends of the radial stator core 2. A set of axial suspension control windings 8 are respectively embedded and wound on the two axial stator cores 1. Two sets of axial suspension control windings 8 are connected in series. Both the radial stator core 2 and the rotor core 4 are made of laminated silicon steel sheets, and a set of three-phase four-pole torque control winding 7 for controlling the torque output of the motor is embedded and wound on the radial stator core 2, and a set for The...

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Abstract

The invention relates to an axial initiative-suspension three-dimensional bearing-free alternative-pole permanent-magnetic machine, which belongs to a bearing-free magnetic-suspension motor. The machine comprises two axial stator cores (1) that are provided with axial suspension controlling windings (8) that are serially connected with each other, a radial stator core (2) that is provided with a set of four-pair-pole torque controlling windings (7) and a set of one-pair-pole radial suspension controlling windings (6), a rotor core (4) that is provided with four homo-polar magnetizing permanent-magnets (3) and a rotor rotating shaft (5) that is enclosed with the rotor core (4). The motor has simple and compact structure, is free from additional axial magnetic bearing, integrates the motor rotation and axial and radial simultaneous-suspension functions of the rotor, has high integration, enlarges the suspension freedom of the bearing-free motor, simplifies the system structure, reduces the volume, the weight and the cost of the system, and has broad application prospect and important significance in different high-speed magnetic-suspension motor systems.

Description

1. Technical field [0001] The invention is a three-degree-of-freedom bearingless alternating pole permanent magnet motor with axial active suspension, which is suitable for many special power transmission fields such as high-speed and ultra-high-speed spindle motors, aerospace, life science, chemical industry, semiconductor industry, etc. Contact, no friction and wear, vacuum technology without lubrication and sealing, ultra-clean fields and other occasions, belong to the magnetic levitation motor using bearingless technology. 2. Background technology [0002] Traditional three-degree-of-freedom maglev systems usually have four structures: [0003] 1. It is composed of an axial magnetic bearing and a two-degree-of-freedom radial magnetic bearing; [0004] 2. It is composed of an axial magnetic bearing and a two-degree-of-freedom bearingless motor; [0005] 3. It is composed of a two-degree-of-freedom bearingless sheet motor; [0006] 4. It is composed of an integrated thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/00H02N15/00
Inventor 仇志坚邓智泉王晓琳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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