Combined seal ring for MBA shaft

A combined sealing and sealing ring technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of short service life of hydraulic and pneumatic cylinders, and achieve the effect of good sealing effect and excellent sealing effect.

Inactive Publication Date: 2012-03-07
TAICANG MINGYUSL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the O-ring as the basic elastic carrier cannot avoid the Achilles heel of permanent deformation during use, the combined sealing ring developed on the basis of the O-ring also cannot maintain a good sealing effect for a long time
Therefore, the service life of hydraulic and pneumatic cylinders using this type of sealing technology is relatively short.

Method used

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  • Combined seal ring for MBA shaft
  • Combined seal ring for MBA shaft

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the combined sealing ring of the present invention includes a Y-shaped lip sealing ring 1 and an O-ring sealing ring 2, and the O-ring sealing ring 2 is embedded in the groove 3 of the Y-shaped lip sealing ring 1 ; A lip 4 is provided on the Y-shaped lip seal ring 1; the lip 4 is triangular, arc-shaped, trapezoidal or rectangular; the Y-shaped lip seal ring 1 is polyurethane; the O Shaped sealing ring 2 is nitrile rubber. The invention adopts a combined sealing ring, which solves the problem that the product changes with temperature and is easy to leak under low pressure or vacuum conditions in the past, and has a good sealing effect.

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Abstract

The invention relates to a combined seal ring for a shaft. The seal ring comprises a Y-shaped lip seal ring and an O-shaped seal ring; and the O-shaped seal ring is inlaid in a groove of the Y-shaped lip seal ring. According to the invention, the combined seal ring is adopted, the problems that the traditional products change with temperature and are easy to leak at a low pressure or on a vacuum condition are solved, and the combined seal ring plays a very good seal effect.

Description

technical field [0001] The invention relates to the field of sealing elements, in particular to an elastic compensation type Y-shaped combined sealing ring. Background technique [0002] With the continuous development of the domestic economy and the continuous improvement of national living standards, the degree of industrial automation of many domestic industrial and mining enterprises has been further improved, and sealing products play an important role in industrial automation. The quality of sealing products depends on the fluid power transmission in industrial automation. plays a key role. Especially in the national major equipment related to the national economy and the people's livelihood, the stable performance, reliable quality and tolerance of various fluid media of sealing products are very important. At the same time, the use of seals imported from foreign developed countries in major domestic key equipment is not only expensive, but also takes a long time to ...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/3204
Inventor 尤建清
Owner TAICANG MINGYUSL
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