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Rotating shaft lip seal ring

A technology of lip seals and rotating shafts, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of short service life and inability to achieve lubrication of rotating shaft lip seals, so as to improve wear resistance, Good elasticity, the effect of improving adhesion

Inactive Publication Date: 2019-07-23
ANHUI RUNKANG RUBBER & PLASTIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When encountering a non-grease-immersed working environment, the ordinary rotary shaft lip

Method used

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  • Rotating shaft lip seal ring
  • Rotating shaft lip seal ring

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[0016] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0017] Such as figure 1 The shown lip seal ring for a rotating shaft includes an outer ring 1 and an inner ring 2 of a rubber shell. A metal frame 3 is embedded in the outer ring 1 and a spring groove 4 is provided at the upper end of the inner ring 2 , The inner ring 2 is embedded with an elastic sheet 5 at the...

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Abstract

The invention relates to the technical field of seal rings, in particular to a rotating shaft lip seal ring. The rotating shaft lip seal ring comprises an outer ring and an inner ring of a rubber shell, a metal framework is embedded in the outer ring, a spring groove is formed in the upper end of the inner ring, an elastic piece is embedded in the waist portion of the inner ring, and is made of polytetrafluoroethylene, the inner ring lip part is coated with a wear-resisting layer, the longitudinal section of the spring groove is in the V groove manner, at least one tooth block is arranged on the metal framework, and the tooth block is clamped in the outer ring. On the basis of design of a common seal ring, the polytetrafluoroethylene elastic piece with elasticity is added on the waist of the seal ring, the stiffness of the waist portion of the seal ring is effectivley improved, the following between a lip opening and an outer transmission shaft is ensured, the seal property of the sealring in the actual use process is improved, a polytetrafluoroethylene thin film is added on the lip opening, the wear resistance of the seal lip opening is greatly improved, and even if the seal ringworks in the non-grease soaking environment, the rubber is not worn.

Description

technical field [0001] The invention relates to the technical field of seal rings, in particular to a rotary shaft lip seal ring. Background technique [0002] The advantages of diesel engines are high power and good economic performance. The working process of the diesel engine has many similarities with the gasoline engine, but because the fuel used in the diesel engine is diesel, its viscosity is higher than that of gasoline, it is not easy to evaporate, and its auto-ignition temperature is lower than that of gasoline, so the formation of combustible mixture and the way of ignition Both are different from gasoline engines. The mixed gas in the diesel engine cylinder is ignited by high pressure. The use of high-pressure common rail oil pump makes the diesel fuel sprayed out in the state of atomization, and the combustion is accelerated under the condition of high pressure and high atomization, which becomes the power source of the diesel engine. The sealing ring is used ...

Claims

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Application Information

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IPC IPC(8): F16J15/3204F16J15/3252
CPCF16J15/3204F16J15/3252
Inventor 张铭
Owner ANHUI RUNKANG RUBBER & PLASTIC TECH CO LTD
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