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High-performance field modulation magnetic gear

A magnetic gear, high-performance technology, applied in the field of gear transmission, can solve the problems of poor dynamic follow performance, large torque ripple, poor transmission stability, etc., to improve torque transmission capacity, reduce processing costs, and improve transmission stability. Effect

Inactive Publication Date: 2016-08-31
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention can solve the problems of large torque pulsation, poor transmission stability and poor dynamic following performance existing in the existing field modulation magnetic gear

Method used

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  • High-performance field modulation magnetic gear
  • High-performance field modulation magnetic gear
  • High-performance field modulation magnetic gear

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A high-performance field modulation magnetic gear, comprising a magnetic modulation ring 1, a low-speed rotor 2, a high-speed rotor 3 and a housing 4; The end surfaces on both sides of the ring 1 are respectively aligned with the outer end surfaces of the low-speed rotor 2 and the high-speed rotor 3 .

Embodiment 2

[0049] A high-performance field modulation magnetic gear as described in Embodiment 1, the difference is that the low-speed rotor 2 and the high-speed rotor 3 are arranged coaxially in the axial direction, with an axial gap between them; the magnetic modulation ring 1 A radial air gap 5 is provided between the outer surfaces of the low-speed rotor 2 and the high-speed rotor 3 .

Embodiment 3

[0051] A high-performance field modulation magnetic gear as described in Embodiments 1 and 2, the difference is that the magnetic modulation ring 1 includes a plurality of parallel magnetic strips 11 arranged at equal intervals along the circumferential direction.

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Abstract

A high-performance field modulation magnetic gear comprises a magnetic field modulation ring, a low-speed rotor, a high-speed rotor, and a shell. The magnetic field modulation ring is coaxially and fixedly installed outside the low-speed rotor and the high-speed rotor, and the lateral end faces of the magnetic field modulation ring are respectively aligned with the outer end faces of the low-speed rotor and the high-speed rotor. A radial air gap is arranged between the magnetic field modulation ring and the high-speed and low-speed rotors, and an axial gap is arranged between the high-speed and low-speed rotors, so that the high-speed and low-speed rotors can rotate freely. The magnetic gear of the invention has the characteristics of small torque ripple, good transmission stability, strong torque transmission capacity, and fast transient response.

Description

technical field [0001] The invention relates to a high-performance field modulation magnetic gear, which belongs to the technical field of gear transmission. Background technique [0002] Compared with mechanical gears, magnetic gears use magnetic field coupling to transmit torque. It is a non-contact variable speed transmission device that does not have problems such as noise, vibration, friction loss, and lubrication, and can realize the communication between input and output. Physical isolation, also has overload self-protection ability. In recent years, with the development of high-performance NdFeB permanent magnet materials, the research of new magnetic gear topologies has received more and more attention. [0003] Torque transmission capability and transmission stability are two important indicators for evaluating the performance of magnetic gears. Compared with traditional conversion magnetic gears, field modulation magnetic gears based on the principle of magnetic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K51/00
CPCH02K51/00
Inventor 李祥林刘圣炜王永军
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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