Composite two-lip threaded lip oil seal

A thread and lip technology, which is applied in the field of double-lip structure oil seals, can solve the problems of not being able to work for a long time, lubricating oil penetration, leakage and sealing, etc., and achieve the effects of improving use value, saving material costs, and long service life

Inactive Publication Date: 2014-03-12
广东天诚密封件股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general multi-lip structure oil seal adopts the method of increasing the sealing contact area to resist high pressure and increase the amount of wear to meet the harsh working conditions. However, once the first lip seal fails, the lubricating oil will be brought to the next one. In the lip, at ...

Method used

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  • Composite two-lip threaded lip oil seal
  • Composite two-lip threaded lip oil seal
  • Composite two-lip threaded lip oil seal

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Embodiment Construction

[0014] refer to Figure 1-Figure 3 , a composite double-lip threaded lip oil seal, including a metal skeleton 2 and a rubber body 1, the rubber body 1 is combined with the metal skeleton 2 through a vulcanization molding mold and process, and the outer wall of the rubber body 1 is an outer diameter matching surface 10, Interference fit with the sealing body 13, the outer diameter mating surface 10 can be a plane structure with rubber or a wave structure, or a plane structure with a metal skeleton; on the inner side of the rubber body 1, there is an interference fit with the working shaft 15 The main lip and the inner auxiliary lip 11; outside the main lip of the rubber body 1, there is a spring 3, and on the lower side of the rubber body 1, there is an outer auxiliary lip 12 that is interference fit with the end cover 14, and the inner The auxiliary lip 11 and the outer auxiliary lip 12 are dust-proof structures, and the structures of the inner auxiliary lip 11 and the outer a...

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Abstract

The invention relates to a composite two-lip threaded lip oil seal, which comprises a metal framework and a rubber body. The inner side of the rubber body is provided with a main lip which has a composite two-lip structure and consists of a threaded lip, a sealing lip and an R-shaped oil storage groove; the threaded lip is positioned at the inner end of the sealing lip; the R-shaped oil storage groove is positioned between the threaded lip and the sealing lip; the thread direction of the threaded lip is opposite to the rotating direction of a working shaft. Because of the threaded multi-lip sealing structure, the oil seal can work under the conditions of high pressure and high rotating speed, has high wear resistance and obvious oil return effect, is more stable and reliable than an oil seal of which the lip is directly provided with an oil return line structure, achieves better durability under the condition that the rubber material is not changed, has longer service life and wider application range, reduces material cost, improves use value and keeps higher economic benefit.

Description

technical field [0001] The invention relates to a double-lip structure oil seal, in particular to a composite double-lip oil seal with a threaded lip structure. Background technique [0002] With the rapid development of science and technology in the 21st century, the technological content of today's automobiles continues to increase, and more pursuit of the power performance of automobiles, through the improvement of engine structure, the automatic adjustment of electronic systems to optimize the maximum output performance, etc., the evolution of these performance improvements It is inseparable from the sealing parts in the engine at all times, and directly affects the entire power system and safety system of the engine, which is related to the sealing performance of the oil seal assembled in each engine. [0003] The higher the performance of the engine, the higher the working pressure, speed and other conditions will be. At present, there are many types of oil seals. Alth...

Claims

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Application Information

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IPC IPC(8): F16J15/32F16J15/3208F16J15/3236F16J15/3252
Inventor 吴克胜陈庆斌
Owner 广东天诚密封件股份有限公司
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