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Multistage disc magnetic fluid sealing device

A ferrofluid seal and disc technology, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of low pressure resistance, achieve enhanced pressure resistance, improve pressure resistance and sealing reliability, and increase Effects of secondary pressure bearing capacity and self-healing capacity

Active Publication Date: 2018-04-24
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-stage disc magnetic fluid sealing device, thereby solving the problem of low pressure resistance existing in the existing single-stage disc magnetic fluid sealing device and multi-magnetic source magnetic fluid sealing device, so that the sealing technology can be successfully applied In the fields of high speed and heavy load

Method used

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  • Multistage disc magnetic fluid sealing device

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing.

[0027] like figure 1 As shown, the multi-stage disc magnetic fluid sealing device includes a shaft 1, a housing 2, a left pole shoe ring 3, a middle pole shoe ring 4, a right pole shoe ring 5, an inner permanent magnet ring 6, and an outer permanent magnet ring 7;

[0028] The left pole shoe ring 3 and the right pole shoe ring 5 are set between the housing 2 and the shaft 1; between the left pole shoe ring 3 and the right pole shoe ring 5, more than two permanent A magnet ring group; each permanent magnet ring group is separated by an intermediate pole shoe ring 4, and the intermediate pole shoe ring 4 is set between the shell 2 and the shaft 1;

[0029] Each of the permanent magnet ring groups includes an inner permanent magnet ring 6 and an outer permanent magnet ring 7 corresponding to each other; the inner permanent magnet ring 6 is arranged on the outer circular surf...

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Abstract

The invention relates to a multistage disc magnetic fluid sealing device. The multistage disc magnetic fluid sealing device comprises a shaft, a shell, a left pole shoe ring, a middle pole shoe ring,a right pole shoe ring, inner permanent magnet rings and outer permanent magnet rings; the left pole shoe ring and the right pole shoe ring sleeve the portion between the shell and the shaft; two or more permanent magnet ring groups are arranged between the left pole shoe ring and the right pole shoe ring in the axial direction; and every two adjacent permanent magnet ring groups are separated bythe middle pole shoe ring, and the middle pole shoe ring sleeves the portion between the shell and the shaft. According to the multistage disc magnetic fluid sealing device, the problem that the pressure resistance of an existing single-stage disc magnetic fluid sealing device and a multi-magnetic-source magnetic fluid sealing device is low can be solved, so that the sealing technology is successfully applied to the fields such as high-speed heavy load.

Description

technical field [0001] The invention belongs to the field of mechanical engineering seals, in particular to a multi-stage disk magnetic fluid seal device. Background technique [0002] Many occasions in the industry have very strict requirements on sealing, especially the need for sealing without leakage, which cannot be achieved by general traditional mechanical seals. Magnetic fluid sealing can solve the above problems well. Compared with traditional sealing technology, magnetic fluid sealing technology has the advantages of zero leakage rate, no solid friction, long life and high reliability, and has been widely used in various industries. This is of great significance to engineering sealing. When the magnetic fluid sealing technology is applied in a large-diameter, high-speed and heavy-duty sealing environment, the magnetic fluid in the sealing gap often fails because the sealing gap is too large, so improving the pressure resistance of the magnetic fluid seal under the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 杨小龙陈帆谢国进孙彭郝付祥
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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