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permanent magnet gear transmission

A gear transmission, permanent magnet technology, applied in electrical components, electromechanical devices, etc., can solve the problems of high noise, low torque, low utilization rate of magnets, etc., and achieve the effect of improving utilization rate and reducing hysteresis loss.

Inactive Publication Date: 2016-08-17
AVIC SHENYANG AERODYNAMICS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this type of magnetic gear transmission are: low magnet utilization, small torque, small transmission ratio, and high noise

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A permanent magnet gear transmission, which consists of: a housing 4, the housing has a stator 3, and the stator is embedded between the radially coaxial inner rotor 1 and the outer rotor 2; The inner rotor includes a ferromagnetic shaft 12, on which there are two layers of permanent magnets A (item number 11 in the figure) with N and S poles arranged alternately; the outer rotor includes a set of N and S poles alternated Arranged permanent magnets B (item number 21 in the figure); the stator includes an outer stator layer 31 and an inner stator layer 32, and the outer stator layer connects the permanent magnets of the outer layer of the inner rotor with the outer rotor The permanent magnets form a permeable map, and the inward stator layer forms a permeable map between the permanent magnets of the inner rotor and the permanent magnets of the outer rotor.

[0031] The permanent magnets A of the two layers are staggered by 180° electric angle.

Embodiment 2

[0033] According to the permanent magnet gear transmission in Embodiment 1, the outer rotor is connected to the casing through the field-weakening bracket 22 , and the stator is connected to the casing through the field-weakening bracket 33 .

Embodiment 3

[0035] According to the permanent magnet gear transmission described in embodiment 1 or 2, the inner rotor also has an inner rotor shaft, the inner rotor shaft is integrated with the inner rotor base, and the permanent magnets A are installed in pairs Inside the inner rotor base.

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Abstract

Permanent magnet gear transmission. Most of the existing permanent magnet gear transmissions use permanent magnets to generate a magnetic field. The magnetic field passes through the air gap to couple the main and driven shafts together, and realizes non-contact transmission through direct magnetic field coupling. The disadvantages of this type of magnetic gear transmission are: low magnet utilization, small torque, small transmission ratio, and high noise. The method of the present invention includes: a casing (4), the casing has a stator (3) inside, and the stator is embedded between the inner rotor (1) and the outer rotor (2) that are radially coaxial; The inner rotor includes a ferromagnetic shaft (12) with two layers of permanent magnets A (11); the outer rotor includes a set of permanent magnets B (21) with N and S poles arranged alternately ; The stator includes an outward stator layer (31) and an inward stator layer (32). The invention is used in a transmission.

Description

Technical field: [0001] The invention relates to a permanent magnet gear transmission. Background technique: [0002] The existing gear transmissions are basically the direct contact type of mechanical gear meshing. The disadvantages are low efficiency, high noise, need for lubrication, and easy damage. Most of the existing permanent magnet gear transmissions use permanent magnets to generate a magnetic field. The magnetic field passes through the air gap to couple the main and driven shafts together, and realizes non-contact transmission through direct magnetic field coupling. The disadvantages of this type of magnetic gear transmission are: low magnet utilization, small torque, small transmission ratio, and high noise. [0003] Aiming at the problems of existing gears and permanent magnet gears, the present invention provides a permanent magnet gear transmission, which improves the utilization rate of permanent magnets through the method of harmonic modulation of the magn...

Claims

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Application Information

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IPC IPC(8): H02K16/02
Inventor 张益盛付明龙陈雪原张威
Owner AVIC SHENYANG AERODYNAMICS RES INST
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