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Combined seal ring for DAS hole

A combination of sealing and hole technology, applied in the direction of engine sealing, engine components, piston rings, etc., can solve the problems of short service life of hydraulic and pneumatic cylinders, and achieve the effect of improving the sealing effect and service life

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 DAS hole
  • Combined seal ring for DAS hole

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Such as figure 1 As shown, the combined sealing ring of the present invention includes an elastic rubber ring 1, a support ring 2 arranged on both sides of the elastic rubber ring 1, and a right-angled guide ring 3 arranged on both sides of the support ring 2, between them The upper part of the elastic rubber ring 1 is provided with three sealing lips 4, and the middle one is the thickest; the lower part of the elastic rubber ring 1 is a split-shaped structure; the support ring 2 is a ladder-shaped structure. One side of the lower part of the support ring 2 is provided with a raised point 5; the guide ring 3 is provided with an axial groove 6; the elastic rubber ring 1 is nitrile rubber; the support ring 2 is nylon or polyurethane; Ring 3 is Nylon or Delrin. The invention adopts a combined sealing ring, which changes the limitation of poor leak...

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Abstract

The invention relates a combined seal ring for a hole. The combined seal ring comprises an elastic rubber ring, support rings at two sides of the elastic rubber ring, and right-angle-shaped guide rings arranged at two sides of each supporting ring, wherein the elastic rubber ring, the supporting rings and the right-angle-shaped guide rings are connected in a matching manner. According to the invention, the combined type seal ring is adopted, the limit of poorer leakage and extrusion resistance of the traditional seal member under a heavy load condition is broken through, and the service life of the combined seal ring is prolonged under the condition that a seal effect is increased.

Description

technical field [0001] The invention relates to the field of seals, in particular to a combined seal ring of a piston and a cylinder in hydraulic and pneumatic transmission. 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 take...

Claims

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Application Information

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IPC IPC(8): F16J9/00F16J9/28F16J15/18F16J15/32F16J15/3248F16J15/3284
Inventor 尤建清
Owner TAICANG MINGYUSL
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