Installation device for ring magnet

A ring magnet and installation device technology, which is applied in the direction of magnets, magnetic objects, thrust reversers, etc., can solve problems such as difficulty in installing ring magnets, and achieve the effects of solving installation difficulties, reducing processing difficulty, and simplifying structure

Active Publication Date: 2016-05-11
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In view of this, the object of the present invention is to provide a ring magnet installation device, which can solve the problem of difficulty in installing ring magnets

Method used

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  • Installation device for ring magnet
  • Installation device for ring magnet
  • Installation device for ring magnet

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0023] The present invention provides a ring magnet installation device, see attached Figure 1-3 , including: ring groove 2, cover plate 3, installation card 4, screw 5 and gasket;

[0024] Its peripheral structure is a permanent magnet 1, and the permanent magnet 1 is an arc-shaped magnet, and a plurality of arc-shaped magnets are connected to form a ring magnet; the central angle corresponding to each arc-shaped magnet is α, and α is 5° to 30° , the number of arc-shaped magnets is (360 / α);

[0025] The annular groove 2 is a ring processed with an annular groove, the annular groove matches the permanent magnet 1, and the annular groove can limit the four degrees of freedom of the permanent magnet 1, that is, the three degrees of freedom of the permanent magnet 1. Rotational degree of freedom and a radial degree of freedom; a ring of axial through holes...

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Abstract

The invention discloses an installation device for a ring magnet, and belongs to the technical field of ion thrusters. The installation device comprises a ring slot, more than two cover boards, more than two installation clips and bolts, wherein the ring magnet comprising more than two permanent magnets is embedded into an annular groove of the ring slot; a gap is not formed between the adjacent permanent magnets; the more than two cover boards are located into the annular groove of the ring slot, and cover the upper surface of the ring magnet; two horizontal parts of each installation clip are propped against the upper end surface and the lower end surface of the ring slot respectively; more than two installation clips are evenly distributed along the circumferential direction of the ring slot; and after the bolts and threaded holes of the installation clips are in screw-thread fit, the end parts of screws of the bolts pass through axial through holes of the ring slot and are propped against the lower surfaces of the permanent magnets, so that the cover boards on the upper surfaces of the permanent magnets are propped against the lower surfaces of the horizontal parts of the end parts of the installation clip. The installation device and the permanent magnets are arranged on the ion thruster as a whole, so that the installation difficulty that the ring magnet comprising the permanent magnets is directly installed on the ion thruster is lowered.

Description

technical field [0001] The invention belongs to the technical field of ion thrusters, and in particular relates to a ring magnet installation device. Background technique [0002] Ring magnets are used in ion thrusters. It is difficult to use a full ring of permanent magnets under current technical conditions. First, the size of the magnetic poles on ion thrusters is generally large, and permanent magnets are hard and brittle materials. It is easy to break and break; the second is that it is difficult to magnetize the ring magnetic pole radially. Therefore, the permanent magnets in the ring poles must be divided into smaller magnet blocks for magnetization and installation. However, the division of permanent magnets has brought serious installation difficulties: if all the permanent magnets are placed in place before they are pressed and fixed, due to the strong repulsion between the permanent magnets, they are easy to fly out during the installation process, resulting in p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F7/02F03H1/00
CPCF03H1/0081H01F7/0221
Inventor 王彦龙陈娟娟张天平赵以德唐福俊杨福全郑茂繁龙建飞杨浩
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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