A multi-magnetic source sleeve type magnetic fluid sealing device

A ferrofluid seal and sleeve technology, which is applied in the direction of engine seals, mechanical equipment, engine components, etc., can solve the problems of low pressure resistance and achieve the effects of improving pressure resistance, reducing losses, and increasing magnetic flux density

Active Publication Date: 2020-12-18
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a magnetic source split sleeve type magnetic fluid sealing device, so as to solve the problem of low pressure resistance existing in the existing single magnetic source magnetic fluid sealing device, and the processing is simple and easy to assemble, so that the The sealing technology has been successfully applied in high-speed and heavy-duty fields

Method used

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  • A multi-magnetic source sleeve type magnetic fluid sealing device

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with accompanying drawing.

[0035] like figure 1 As shown, the multi-magnetic source sleeve-type ferrofluid seal device includes a housing 2 and consists of more than one ferrofluid seal unit, and the ferrofluid seal unit includes a left pole shoe ring 3 and a right pole shoe ring 4 , sleeve 5, left first permanent magnet ring 6, left second permanent magnet ring 7, middle permanent magnet ring 8, right first permanent magnet ring 9, right second permanent magnet ring 10;

[0036] The sleeve 5 is set on the shaft 1, and the outer circular surface of the sleeve 5 is divided into a left sleeve surface 51, a left groove surface 52, a middle circular surface 53, a right sleeve surface 54, and a right groove surface 55; The left sleeve surface 51 and the left groove surface 52 are arranged alternately on the left side of the middle circular surface 53, and the right sleeve surface 54 and the right groove ...

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Abstract

The invention relates to a multi-magnetic-resource sleeve type magnetofluid sealing device. The device comprises more than one magnetofluid sealing units, wherein each magnetofluid sealing unit comprises a housing, a left pole shoe ring, a right pole shoe ring, a sleeve, a first left permanent magnet ring, a second left permanent magnet ring, an intermediate permanent magnet ring, a first right permanent magnet ring and a second right permanent magnet ring. With the adoption of the device the problem of low pressure resistance of an existing single-magnetic-resource magnetofluid sealing devicecan be solved; in addition, the device is simple to process, and convenient to assemble, so that the sealing technology can be smoothly applied to the fields such as the field of high speed and heavyload.

Description

technical field [0001] The invention belongs to the field of mechanical engineering sealing, and in particular relates to a multi-magnetic source sleeve type magnetic fluid sealing device. Background technique [0002] With the development of the economy, the vacuum equipment at home and abroad has developed rapidly. In many rotary sealing devices, magnetic fluid sealing technology has been widely used, such as sealing of vacuum equipment, high temperature and high pressure equipment and equipment with high environmental requirements, in order to improve product quality and obtain good economic benefits . However, with the increase of the sealing gap, the sealing ability gradually decreases or even fails. Therefore, improving the pressure resistance performance of the magnetic fluid seal under the large gap is a hot issue nowadays. [0003] Therefore, by improving the magnetic fluid sealing structure as a method to improve the pressure resistance of the magnetic fluid seal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 杨小龙郝付祥高名乾余冬燕
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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