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Permanent magnet coupling mechanism between shafts

A permanent magnetic coupling and inter-shaft technology, applied in the direction of electromechanical devices, electromechanical transmission devices, electrical components, etc., can solve problems such as difficult to accurately ensure two-axis alignment, scattered magnetic field distribution, complex structure and operation, etc., to reduce adjustment Displacement, concentricity requirements are reduced, and the effect of wide application range

Inactive Publication Date: 2013-09-25
JIANGSU MAGNET VALLEY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex and changeable operation of the system, it is difficult to accurately ensure the alignment of the two axes, and the equipment will vibrate after a period of operation, thereby accelerating wear and shortening the life of the equipment
[0004] 2. At present, frequency conversion and speed regulation are widely used in industrial sites. The output speed is controlled by controlling the motor. The price is relatively expensive, and the structure and operation are complicated. The power electronic devices of the frequency converter work in the switch state, thus generating a large number of harmonics and polluting the power grid. Affects communication, and the stability of electronic devices is not good, it is easy to age, the service life is not long, and the requirements for the environment are high, and there are great requirements for the ambient temperature, humidity and dust, so it is not suitable for working in harsh environments
In this type of coupler with existing structures, the direction of the magnetic field in the permanent magnets distributed along the circumference is usually perpendicular to the magnetic field action surface between the conductor rotor and the permanent magnet rotor, and the magnetic field distribution is scattered and the intensity is not high (the highest magnetic induction The strength can only reach 400~500mT), if you want to transmit a large torque, you need to make the structure larger, which limits the promotion of this technology

Method used

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  • Permanent magnet coupling mechanism between shafts

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Embodiment Construction

[0016] As shown in the figure, the inter-shaft permanent magnetic coupling mechanism of the present invention includes a coaxially arranged permanent magnet rotor 1 and a conductor rotor 2. Permanent magnets and conductors are respectively distributed on the permanent magnet rotor 1 and the conductor rotor 2. The permanent magnet rotor 1 There is a conical air gap 3 between the conductor rotor 2; the permanent magnet on the permanent magnet rotor 1 includes a main magnet 4 and an auxiliary magnet 5; a plurality of main magnets 4 are distributed along the circumference, and are arranged between adjacent main magnets 4 There are magnetizers 6 made of magnetically permeable materials; the auxiliary magnets 5 are located on the side of each magnetizer 6 away from the conductor rotor 2; Direction) is located in the circumferential direction of the permanent magnet rotor, and the magnetic pole direction of the adjacent main magnet 4 (indicated by the arrow direction in the figure) is...

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Abstract

The invention relates to a permanent magnet coupling mechanism between shafts. The permanent magnet coupling mechanism between the shafts is used for transmitting torque between the two rotating shafts. The mechanism comprises a permanent magnet rotor and a conductor rotor, wherein a conical air gap is formed between the permanent rotor and the conductor rotor. A permanent magnet on the permanent magnet rotor comprises main magnets and auxiliary magnets. The multiple main magnets are circumferentially distributed. A magnetizer made of permeability magnetic materials is arranged between every two adjacent main magnets. One auxiliary magnet is arranged on one side, away from the conductor rotor, of each magnetizer. The directions of the magnetic poles of the main magnets are located in the circumferential direction of the permanent magnet rotor. The directions of the magnetic poles of the adjacent main magnets are in the face-to-face direction or the back-to-back direction. The directions of the magnetic poles of the auxiliary magnets are the radial directions of the permanent magnet rotor. The directions of the magnetic poles of the adjacent auxiliary magnets are opposite. The magnetic poles of the positions of the side faces where the two main man magnets and one auxiliary magnet are contacted with the same magnetizer are respectively the same polarity. The permanent magnet coupling mechanism between the shafts is large in transmitting torque, adjustable in transmitting torque, compact in structure, convenient to install, and stable and reliable in transmission and adjustment.

Description

technical field [0001] The invention relates to a mechanism transmission device, in particular to an inter-shaft permanent magnetic coupling mechanism for torque transmission between two rotating shafts. Background technique [0002] For torque output and adjustment, there are many ways in the prior art, including: [0003] 1. Coupling mechanisms widely used in industry at present, these mechanisms are mostly rigid or hydraulic coupling connections, and the transmission torque and speed cannot be adjusted. Due to the complex and changeable operating conditions of the system, it is difficult to accurately ensure the alignment of the two axes. After a period of operation, the equipment will vibrate, which will accelerate wear and shorten the life of the equipment. [0004] 2. At present, frequency conversion and speed regulation are widely used in industrial sites. The output speed is controlled by controlling the motor. The price is relatively expensive, and the structure an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K51/00
Inventor 徐俊峰
Owner JIANGSU MAGNET VALLEY TECH
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