Radial rotary sealing device for magnetic liquid

A magnetic liquid and rotary seal technology, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of higher processing and assembly precision, difficulty in adding or replacing magnetic liquid, etc., so as to reduce difficulty, avoid increase, The effect of avoiding collision damage

Inactive Publication Date: 2016-01-06
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that it is difficult to add or replace the magnetic liquid during the use of the existing magnetic liquid rotary seal device, and as the number of sealing stages in the seal increases, the axial length also increases, which has great impact on processing and Assembly accuracy is also required to be higher

Method used

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  • Radial rotary sealing device for magnetic liquid

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Effect test

Embodiment Construction

[0017] The present invention will be further described with accompanying drawing as specific embodiment:

[0018] Radial magnetic liquid rotary seals, such as figure 1 , the sealing device includes: shell 1, adjusting gasket 2, first guiding disk 3, screw 4, third rubber sealing ring 5, bushing 6, right bearing 7, screw 8, left bearing 9, magnetic isolation sleeve 10, Screw 11, second rubber sealing ring 12, first annular permanent magnet 13, first rubber sealing ring 14, screw 15, magnetic isolation cover 16, second annular permanent magnet 17, second guide disk 19.

[0019] Connections between the parts making up the device:

[0020] The first rubber sealing ring 14 is installed in the groove of the end surface of the first annular permanent magnet 13 to form a first annular permanent magnet with a rubber sealing ring, and the second rubber sealing ring 12 is installed on the end surface of the second annular permanent magnet 17 In the groove, a second annular permanent ma...

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PUM

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Abstract

The invention discloses a radial rotary sealing device for magnetic liquid and belongs to the field of mechanical engineering sealing. By means of the radial rotary sealing device for the magnetic liquid, the problems that when an existing sealing device is in use, it is difficult to add or replace magnetic liquid, and machining accuracy and assembly accuracy are too high due to the fact that the axial length is large are solved. According to the sealing device for the magnetic liquid, radial sealing is adopted, the axial dimension is reduced by increasing the radial dimension, a first magnetic disc is connected with a shell through screws, and detachment is convenient. Moreover, the invention provides a novel mode for designing the rotary sealing device for the magnetic liquid.

Description

technical field [0001] The invention belongs to the field of mechanical engineering sealing. Background technique [0002] Magnetic liquid sealing technology has been gradually used by more and more industries due to its advantages of zero leakage, no wear, long life, convenient maintenance, and simple structure. The typical structure of the existing magnetic liquid rotary sealing device is as described in the patent applications with publication numbers CN102518811A and CN202091519U. The existing magnetic liquid rotary seal devices are all axial seals, which are sealed by injecting magnetic liquid between the rotating shaft and the pole piece. It is difficult to add or replace the magnetic liquid during use, and as the number of sealing stages in the seal increases, The axial length also increases, and the requirements for processing and assembly accuracy are higher. Contents of the invention [0003] The technical problem to be solved by the present invention is that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43
Inventor 李德才姚杰常建军
Owner BEIJING JIAOTONG UNIV
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