Radial sleeve type labyrinth type magnetic fluid sealing device

A ferrofluid sealing and labyrinth technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of low pressure resistance, improve pressure resistance and sealing reliability, increase magnetic flux, and reduce losses Effect
CN107956883AInactive Publication Date: 2018-04-24GUANGXI UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI UNIVERSITY OF TECHNOLOGY
Publication Date
2018-04-24
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a radial sleeve type labyrinth type magnetic fluid sealing device. The radial sleeve type labyrinth type magnetic fluid sealing device comprises a shaft, a shell, a left poleshoe ring, a right pole shoe ring, a sleeve and a permanent magnet ring. The left pole shoe ring and the right pole shoe ring are arranged in the shell in a spaced mode; the shaft is sleeved with thesleeve located between the left pole shoe ring and the right pole shoe ring; the permanent magnet ring is arranged in the shell and located between the left pole shoe ring and the right pole shoe ring; a gap is reserved between the outer circular face of the sleeve and the inner circle face of the permanent magnet ring; pole teeth I are arranged on the right end face of the left pole shoe ring atintervals; pole teeth II are arranged on the left end face of the sleeve at intervals, and pole teeth III are arranged on the right end face of the sleeve at intervals; and pole teeth IV are arrangedon the left end face of the right pole shoe ring at intervals. The radial sleeve type labyrinth type magnetic fluid sealing device is used for solving the problem of low pressure-resistant performanceof an existing sealing device, and the sealing technology is successfully applied to the fields such as the high-speed and heavy-load field.
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Description

technical field

[0001] The invention belongs to the field of mechanical engineering seals, in particular to a radial sleeve type labyrinth magnetic fluid seal device. Background technique

[0002] 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. Therefore, improving the pressure resistance of the large-gap magnetic fluid seal is a hot topic in current research. one.

[0003] One of the methods to improve the pressure resistance performance of magnetic fluid seals under large gaps is to improve the structure of magnetic fluid seals, such as the sealing device described in reference 1 (patent publication number CN 103115152A). Although the sealing device described in the above literature has greatly improved the sealing performance compared with ordinary magnetic fluid, its sealing performance still cannot meet the hi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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