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Staggered tooth end face type magnetic fluid sealing device

A magnetic fluid and sealing device technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of large leakage of magnetic fluid and low stability of sealing performance, so as to improve pressure resistance, save magnetic energy, disassemble The effect of convenience

Active Publication Date: 2016-09-28
GUANGXI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems of large magnetic fluid leakage and low sealing performance stability of the existing sealing device, and designs a staggered tooth end surface magnetic fluid sealing device that is easy to disassemble and has stable and reliable sealing performance

Method used

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  • Staggered tooth end face type magnetic fluid sealing device

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with accompanying drawing.

[0022] Such as figure 1 The shown staggered tooth end surface magnetic fluid sealing device includes an annular left pole piece 5, a middle pole piece 6, a right pole piece 7, and a permanent magnet 11. The middle pole piece 6 is set on the shaft 1, The left end face of the middle pole shoe 6 is provided with pole teeth I61 at intervals, and an annular groove I62 is provided between two adjacent pole teeth I61; pole teeth II63 are provided at intervals on the right end face, and an annular groove is provided between two adjacent pole teeth II63 II64;

[0023] The left pole piece 5 and the right pole piece 7 are respectively arranged on the shaft 1 on the left and right sides of the middle pole piece 6; the pole tooth III51 and the annular groove III52 are arranged on the right end surface of the left pole piece 5; The polar tooth III51 is set corresponding to the annular ...

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Abstract

The invention relates to the field of mechanical engineering sealing, in particular to a staggered tooth end face type magnetic fluid sealing device. The staggered tooth end face type magnetic fluid sealing device comprises a left pole shoe, a middle pole shoe, a right pole shoe and a permanent magnet. Pole teeth I and annular grooves I are formed in the left end face of the middle pole shoe, and pole teeth II and annular grooves II are formed in the right end face of the middle pole shoe. Pole teeth III and annular grooves III are formed in the right end face of the left pole shoe, and pole teeth IV and annular grooves IV are formed in the left end face of the right pole shoe. The pole teeth I on the middle pole shoe extend into the annular grooves III of the left pole shoe, the pole teeth III of the left pole shoe extend into the annular grooves I of the middle pole shoe, the pole teeth II of the middle pole shoe extend into the annular grooves IV of the right pole shoe, and the pole teeth IV of the right pole shoe extend into the annular grooves II of the middle pole shoe. A step notch is formed in the position, close to an axle, of the left end face of the left pole shoe, and a step notch is formed in the position, close to the axle, of the right end face of the right pole shoe. The permanent magnet is installed in the step notches. The sealing device is good in sealing effect and stable in sealing performance.

Description

technical field [0001] The invention belongs to the field of mechanical engineering seals, and in particular relates to a staggered tooth end face type magnetic fluid sealing device. Background technique [0002] The pressure resistance performance of the magnetic fluid seal decreases significantly with the increase of the seal gap. Therefore, improving the pressure resistance performance of large-gap magnetic fluid seals is one of the hot issues in current research. 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. Compared with the traditional sealing structure, the sealing performance of the existing magnetic fluid sealing device has been greatly improved by setting the labyrinth sealing structure. In addition, due to the defects in the sealing structure, the leakage of magnetic fluid is large when the seal fails, and the pressure resistance is low, which cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 杨小龙高尚晗
Owner GUANGXI UNIVERSITY OF TECHNOLOGY
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