A permanent magnet type magnetic screw

A magnetic screw and permanent magnet technology, applied in the direction of magnets, magnetic objects, permanent magnets, etc., can solve the problems of large amount of materials, complex assembly structure, etc., and achieve the effects of not easy demagnetization, simplified installation process, and large coercive force

Active Publication Date: 2021-08-17
SHANGHAI MARITIME UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a permanent magnet type magnetic screw to solve the problems of large amount of materials and complex assembly structure of the traditional magnetic screw

Method used

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  • A permanent magnet type magnetic screw
  • A permanent magnet type magnetic screw
  • A permanent magnet type magnetic screw

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Embodiment Construction

[0018] The permanent magnet type magnetic screw rod proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0019] The core idea of ​​the present invention is that the permanent magnet type magnetic screw provided by the present invention reduces the amount of magnetic materials, and has the advantages of automatic overload protection, small friction loss and high reliability of the traditional magnetic screw. The permanent magnet type magnetic screw rod provided by the present invention can convert the linear motion with high thrust and low linear velocity into...

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Abstract

The present invention proposes a permanent magnet type magnetic screw, including: a rotor, which is a cylindrical structure, including a rotor core; a rotor yoke, which is arranged on the inner surface of the rotor, and gaps are arranged between the helical turns of the rotor yoke; the rotor permanent magnet, Fixed in the gap between the helical turns of the rotor iron yoke, the rotor permanent magnet is spliced ​​by helical segmented permanent magnets; the mover, which is a cylindrical structure, is sleeved in the rotor and placed coaxially, and is set between the rotor and the rotor. There are gaps, including: mover iron core; mover iron yoke, the mover iron yoke is set on the outer surface of the mover, and there is a gap between the spiral turns of the mover iron yoke; the mover permanent magnet is fixed on the mover iron yoke In the gap between the helical turns, it is spliced ​​by helical segmented permanent magnets. The permanent magnet type magnetic screw rod provided by the present invention reduces the amount of magnetic materials, adopts the design of iron yoke and permanent magnet interlaced to make the processing and installation of the magnetic screw rod more concise and efficient, simplifies the installation process of the permanent magnet, and enhances the permanent magnet. The stability of the magnet.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a permanent magnet type magnetic screw rod. Background technique [0002] Traditionally, the conversion of linear motion and rotary motion can be realized by means of a mechanical screw. Most of the force is transmitted between the screw and the nut of the mechanical screw through balls. There is mechanical friction in it. When the mechanical screw suddenly bears When the force is large, it is easy to cause damage to the screw structure. The magnetic screw can also realize the conversion between linear motion and rotary motion through magnetic field coupling, and has the advantages of high thrust density, automatic overload protection, and small mechanical wear. Traditional magnetic screw rods mostly adopt a double helical pole structure, and a large amount of magnetic material is used, especially in long-stroke applications. The characteristics of the magnetic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/06H02K1/27H01F7/02
CPCH01F7/0242H01F7/0247H02K1/27H02K7/06
Inventor 吴卫民田天蒋佳成安丽琼
Owner SHANGHAI MARITIME UNIVERSITY
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