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Cooling groove and centrifugal combined magnetic liquid rotating and sealing device

A magnetic liquid, rotary sealing technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of failure, large magnetic liquid, high temperature of magnetic liquid, and achieve the effect of reducing temperature

Inactive Publication Date: 2014-02-12
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 when the existing magnetic liquid sealing device is used in a large diameter and high speed occasion, the failure caused by the high temperature of the magnetic liquid and the excessive centrifugal force of the magnetic liquid

Method used

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  • Cooling groove and centrifugal combined magnetic liquid rotating and sealing device
  • Cooling groove and centrifugal combined magnetic liquid rotating and sealing device
  • Cooling groove and centrifugal combined magnetic liquid rotating and sealing device

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Embodiment Construction

[0024] The present invention will be further described with accompanying drawing as specific embodiment:

[0025] The magnetic liquid rotary sealing device combined with cooling tank and centrifugal type, such as figure 1 , the sealing device includes: housing 1, first pole shoe 2-1, first shaft sleeve 3-1, first permanent magnet 6-1, second pole shoe 2-2, second shaft sleeve 3-2, first Second permanent magnet 6-2, second pole shoe 2-3, n-2 pole shoe 2-(n-2), n-2 bushing 3-(n-2), n-2 permanent magnet 6 -(n-2), n-1 pole shoe 2-(n-1), n-1 bushing 3-(n-1), n-1 permanent magnet 6-(n-1), n-1 n pole shoe 2-n, left first rubber sealing ring 8-1, first cooling tank 9-1, right first rubber sealing ring 10-1, left second rubber sealing ring 8-2, second cooling tank 9 -2, the second right rubber sealing ring 10-2, the third left rubber sealing ring 8-3, the third cooling tank 9-3, the n-2 cooling tank 9-(n-2), the right n-2 Rubber sealing ring 10-(n-2), left n-1th rubber sealing ring ...

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Abstract

The invention discloses a cooling groove and centrifugal combined magnetic liquid rotating and sealing device and belongs to the field of mechanical engineering sealing. The cooling groove and centrifugal combined magnetic liquid rotating and sealing device solves the invalidation problem caused by the reasons that the temperature of magnetic liquid is excessively high, centrifugal force exerted on the magnetic liquid is excessively large when an existing magnetic liquid sealing device is applied to occasions with large diameters and high revolving speeds. The cooling groove and centrifugal combined magnetic liquid rotating and sealing device comprises parts such as a shell, a pole shoe, a left rubber sealing ring, a right rubber sealing ring, the magnetic liquid, a coolant, a permanent magnet and an axial sleeve. According to the magnetic liquid sealing device, due to the fact that pole teeth are machined on a boss of the shaft sleeve and a cooling groove is formed in the pole shoe, and affection on the magnetic liquid by the centrifugal force and the temperature is lowered.

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 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. When the existing magnetic liquid rotary sealing device is applied in a large-diameter, high-rotational occasion, the problem of seal failure is often caused due to the high temperature of the magnetic liquid and the excessive centrifugal force on the magnetic liquid. Contents of the invention [0003] The technical problem to be solved by the present invention is that when the existing magnetic liquid sealing device is applied in a large-diameter, high-rotational occasion, the temperature of the magnetic liquid is ...

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
Owner BEIJING JIAOTONG UNIV
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