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Magnetofluid sealing device

A magnetic fluid sealing and magnetic fluid technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of bellows welding blade gap, air leakage, etc., to improve production efficiency, improve assembly accuracy, and reduce costs. Effect

Active Publication Date: 2021-12-17
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application provides a magnetic fluid sealing device, which ensures that the magnetic fluid is evenly distributed on the outer wall of the bellows by arranging the magnetic fluid on the outer wall of the bellows and redistributing the magnetic fluid during the radial movement of the seal , to solve the problem of air leakage caused by gaps in the bellows welding blades

Method used

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0024] The embodiment of the present application provides a sealing device, which can solve the technical problem of air leakage caused by gaps in the welded blades of the bellows. Each will be described in detail below. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments. In addition, in the description of the present application, the term "including" means "including but not limited to". The terms "...

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Abstract

The invention discloses a magnetofluid sealing device. The magnetofluid sealing device comprises a corrugated pipe, a fixing piece, magnetofluid and a sealing piece. The fixing piece is connected with the corrugated pipe; the magnetofluid is arranged on the outer side wall of the corrugated pipe; and the sealing piece is connected with the fixing piece and sleeved with the corrugated pipe and the magnetofluid. According to the magnetofluid sealing device, the magnetofluid is arranged on the outer side wall of the corrugated pipe and redistributed in the radial movement process of the sealing piece, it is guaranteed that the magnetofluid is evenly distributed on the outer wall of the corrugated pipe, and the problem of air leakage caused by gaps generated when blades are welded to the corrugated pipe can be solved.

Description

technical field [0001] The present application relates to the technical field of vacuum sealing devices, in particular to a magnetic fluid sealing device. Background technique [0002] The magnetic fluid seal has many advantages such as zero leakage, low cost, and long life, so it is widely used. For example, in the vacuum transmission robot, the magnetic fluid seal structure is used for vacuum rotary sealing. With the continuous improvement of the precision requirements and flexibility of the manipulator in the semiconductor industry, a magnetic fluid sealing device with a linear guide mechanism has been developed to ensure the rotary dynamic seal of the transmission shaft, the axial dynamic seal, and the axial linear motion guidance. [0003] The bellows is a tubular elastic sensitive element connected by foldable corrugated sheets along the direction of folding and expansion. It is widely used in the moving parts of high-vacuum equipment. , especially in high-speed worki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/43
CPCF16J15/43
Inventor 何超
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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