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Sealing anti-drip device of high temp magnetic liquid

A magnetic liquid and anti-drip technology, which is applied in the sealing of engines, engine components, mechanical equipment, etc., can solve the problems of magnetic liquid viscosity reduction, vacuum chamber pollution, and magnetic performance degradation, so as to prevent pollution, realize convenience, and structure simple effect

Inactive Publication Date: 2006-09-20
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many occasions, the magnetic liquid sealing device works at a high temperature, which makes the magnetism of the permanent magnet decrease, and the viscosity of the magnetic liquid also decreases with the increase of temperature, and the magnetic performance decreases, resulting in a small amount of magnetic liquid detaching from the pole piece during the sealing process. The adsorption drops into the vacuum chamber along the magnetic sleeve, causing pollution to the vacuum chamber

Method used

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  • Sealing anti-drip device of high temp magnetic liquid
  • Sealing anti-drip device of high temp magnetic liquid
  • Sealing anti-drip device of high temp magnetic liquid

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Embodiment Construction

[0011] The present invention will be further described with accompanying drawing as specific embodiment:

[0012] The high-temperature magnetic liquid sealing anti-drip device includes: O-ring 1, magnetic sleeve 2, sealing sleeve 3, left bearing 4, left pole shoe 5, permanent magnet 6, right pole shoe 7, O-ring 8, right Bearing 9, nylon pad 10, pressing cap 11, locking cap 12, permanent magnet 13, pressing cap 14, magnetic liquid 15.

[0013] Left bearing 4, left pole shoe 5 embedded with O-ring seal 8, permanent magnet 6, right pole shoe 7 embedded with O-ring seal 8, right bearing 9 is close to the bottom wall IV on the sealing sleeve 3 from left to Put the right into the inner hole V of the sealing sleeve 3 in turn; inject the magnetic liquid 15 into the inner wall of the annular permanent magnet 6, and the magnetic liquid 15 is adsorbed on the annular permanent magnet 6; the magnetic sleeve 2 is loaded into the sealing sleeve 3 from left to right , the left bearing 4, the...

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Abstract

The present invention relates to a high-temperature magnetic liquid seal drip-proof device for magnetic liquid vacuum seal under the condition of high temperature. Said device includes the following several portions: o-type seal ring, magnetoconductive cover, sealing cover, left bearing, left pole shoe, permanent magnet, right pole shoe, right bearing, nylon pad, compression nut, locking nut, pressing nut and magnetic liquid. Said invention also provides their connection mode and the working principle of said drip-proof device.

Description

technical field [0001] The invention belongs to the field of mechanical engineering magnetic liquid sealing, and is especially suitable for magnetic liquid vacuum sealing under high temperature conditions. technical background [0002] The structure of the magnetic liquid seal currently used usually includes: O-ring, magnetic sleeve, sealing sleeve, left bearing, left pole piece, permanent magnet, right pole piece, right bearing, nylon pad, compression cap, lock caps, magnetic fluids. Its left bearing, the left pole shoe embedded with O-ring, permanent magnet, the right pole shoe embedded with O-ring, and the right bearing are closely attached to the bottom wall on the sealing sleeve and packed into the sealing sleeve from left to right. The magnetic liquid is injected into the inner wall of the ring permanent magnet, and the magnetic liquid is adsorbed on the ring permanent magnet. The magnetic sleeve is inserted into the inner hole of the sealing sleeve, left bearing, le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43
Inventor 李德才吕建强白博海郝瑞参
Owner BEIJING JIAOTONG UNIV