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Halbach-array-based magnetic coupling transmission device

A transmission device, magnetic coupling technology, applied in the direction of generators/motors, electrical components, etc., can solve the problems of small torque density and transmission, low utilization rate of permanent magnets, magnetic leakage, etc., to achieve frictionless energy consumption, easy to use. The effect of low loading and unloading and starting torque

Inactive Publication Date: 2012-10-17
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its significant defects are that the torque density and transmission ratio that can be transmitted are small, the utilization rate of permanent magnets is not high, and the phenomenon of magnetic flux leakage is serious.

Method used

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  • Halbach-array-based magnetic coupling transmission device
  • Halbach-array-based magnetic coupling transmission device
  • Halbach-array-based magnetic coupling transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] refer to Figure 3 to Figure 10 , a magnetically coupled transmission based on a Halbach array, including an input shaft 1, a bearing 3, a permanent magnet 6, a stator 9, a rotor 8, and an output shaft, and the output shaft and the input shaft 1 are respectively fixed to the bearing housing 2 through the bearing 3 On a support 4, the rotor 8 is connected to the input shaft 1 through the bearing 3 in the inner cavity of the rotor 8, and the two are in clearance fit, and the rotor 8 and the output shaft are eccentrically placed in the bearing. The connection method is connected; the stator 9 is nested outside the rotor 8 and forms an eccentric mechanism with the rotor 8, the stator 9 is fixed with a base 5, and the inner surface of the stator 9 and the rotor The outer surfaces of the rotors 8 are provided with the permanent magnets 6 capable of rotating the rotor 8, an air gap is provided between the two permanent magnets 6, and the magnetization directions of the permane...

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PUM

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Abstract

The invention discloses a halbach-array-based magnetic coupling transmission device, which comprises an input shaft, a bearing, a permanent magnet, a stator, a rotor, and an output shaft, wherein the output shaft and the input shaft are fixed on a support through bearings and bearing seats; the rotor and the input shaft are in transmission connection through a bearing arranged in the molding cavity in the rotor and are in clearance fit; the rotor and the output shaft are connected in a manner that the bearing is arranged eccentrically; the stator is nested outside the rotor and forms an eccentric mechanism with the rotor; the stator is fixed with a base; permanent magnets which can make the rotor rotate are arranged on the inside surface of the stator and the outside surface of the rotor respectively; an air gap is formed between the permanent magnets; and the magnetization directions of the two permanent magnet are arranged in an Halbach manner. The device overcomes the drawback caused by contact of the conventional mechanical gears and the drawbacks of low transmission torque density and small transmission ratio of the common permanent magnet gears.

Description

technical field [0001] The invention relates to a magnetic coupling transmission device based on Halbach array. Background technique [0002] The current gear transmission mechanism mainly relies on the mutual meshing of mechanical gears to realize the transmission of force and speed. Its transmission ratio is constant and can realize the transmission of large power; In contact with each other, there will be wear, noise, and vibration. Lubrication is required, and the manufacturing and transfer precision requirements are high, which makes some mechanisms, especially some special-purpose transmission mechanisms, appear more complicated in structure, and many of them affect system dynamics. Performance factors are also inevitable. The general permanent magnet gear transmission belongs to the magnetic coupling transmission, which can realize the non-contact transmission of power. It is easy to process, non-contact transmission and no lubrication, so the transmission is stable,...

Claims

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Application Information

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IPC IPC(8): H02N11/00
Inventor 郝伟娜朱雪松
Owner ZHEJIANG UNIV OF TECH
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