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Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device

A transmission device and permanent magnet eddy current technology, applied in the field of permanent magnet transmission, can solve the problems of permanent magnet damage, frequent decoupling, demagnetization, etc., and achieve the effects of less permanent magnet material, less eddy current loss and low manufacturing cost

Active Publication Date: 2014-02-26
LIAOYANG TAIKE LEINUO SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the early permanent magnet synchronous seal drive technology was applied to equipment such as magnetic pumps and magnetic drive agitators, it often encountered unfavorable conditions such as frequent decoupling due to high temperature, corrosion or overload, which may lead to The permanent magnet on the rotor is damaged, demagnetized and other problems

Method used

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  • Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device
  • Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device
  • Flat-plate magnetism-gathering magnetic circuit structure used for permanent magnet eddy current transmission device

Examples

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Effect test

Embodiment 1

[0023] In this embodiment, the flat disk-type magnetism-concentrating magnetic circuit structure used in the permanent magnet eddy current transmission device adopts a double magnetic coupling ring structure.

[0024] Such as Figure 1 to Figure 4 As shown, a flat-disc type magnetic circuit structure for a permanent magnet eddy current transmission device includes a permanent magnet rotor 23 as a driving rotor and an eddy current conductor rotor 22 as a driven rotor. The permanent magnet rotor 23 is composed of permanent magnets Rotor disk 2, twelve sets of inner ring permanent magnet groups 3 and sixteen sets of outer ring permanent magnet groups 4, the inner and outer ring permanent magnet groups are bonded and fixed on the surface of the permanent magnet rotor disk 2 through magnetically conductive glue, And uniformly distributed in the circumferential direction to form inner and outer magnetic coupling rings; the permanent magnet rotor disc 2 is in the shape of a disc and ...

Embodiment 2

[0032] Each set of magnetic circuit structures in the flat-disk type magnetism-concentrating magnetic circuit structure used in the permanent magnet eddy current transmission device of this embodiment adopts a single magnetic coupling ring structure.

[0033] Such as Figure 5 to Figure 7 As shown, a flat-disc type magnetic circuit structure for a permanent magnet eddy current transmission device includes a permanent magnet rotor 23 as a driven rotor and an eddy current conductor rotor 22 as a driving rotor. The permanent magnet rotor 23 is arranged on The hollow permanent magnet rotor disk 20 between the shaft-connecting conductor rotor disk 15 and the hollow conductor rotor disk 19 is composed of a permanent magnet rotor disk 20 and a permanent magnet group 24, and the permanent magnet group 24 is bonded and fixed on the flat surface of the hollow permanent magnet rotor disk 20 by magnetically conductive glue. and evenly distributed in the circumferential direction to form a...

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Abstract

The invention relates to a flat-plate magnetism-gathering magnetic circuit structure used for a permanent magnet eddy current transmission device, and belongs to the technical field of permanent magnet transmission. Compared with a flat-plate permanent magnet eddy current transmission device employing a discrete magnetic circuit structure, permanent magnet material per unit mass of a flat-plate permanent magnet eddy current transmission device employing the magnetic circuit structure provided by the invention can generate larger torque or transmit higher power. The flat-plate magnetism-gathering magnetic circuit structure comprises a permanent magnet rotor and an eddy current conductor rotor which are arranged coaxially, each group of permanent magnets is composed of two to five permanent magnets which are tightly contacted with each other, each group of permanent magnets in the same magnetic coupling ring comprise the same amount of magnets, each magnet is distributed along the radial direction of the flat plate surface of a permanent magnet rotor plate, and magnetizing polarity directions of magnets in the same group of permanent magnets are identical, and magnetizing polarity directions of magnets in two adjacent groups of permanent magnets are opposite. The radial width of each vortex ring is larger than the maximum radial width of a corresponding magnetic coupling ring, i.e., the inner diameter of each vortex ring is smaller than the minimum inner diameter of the corresponding magnetic coupling ring, and the external diameter of each vortex ring is larger than the maximum external diameter of the corresponding magnetic coupling ring.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet transmission, and in particular relates to a flat-disc type magnetism-concentrating magnetic circuit structure that can be used in a permanent magnet eddy current transmission device. Background technique [0002] Permanent magnet eddy current transmission technology originated from the improvement and development of permanent magnet synchronous transmission technology. When the early permanent magnet synchronous seal drive technology was applied to equipment such as magnetic pumps and magnetic drive agitators, it often encountered unfavorable conditions such as frequent decoupling due to high temperature, corrosion or overload, which may lead to The permanent magnet on the rotor is destroyed, demagnetized and other problems. In order to solve this kind of problem, the eddy current ring technology came into being. Its basic structure is to remove the permanent magnet on the driven rotor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K51/00H02K1/27
Inventor 张世伟赵克中王德喜
Owner LIAOYANG TAIKE LEINUO SCI & TECH
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