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Double-lip oil-seal sealing device

A technology of sealing device and lip oil, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc. It can solve the problems of poor sealing effect and impurities entering the hydraulic medium, so as to prolong the life of oil seal and increase the effect of sealing effect

Inactive Publication Date: 2017-01-25
KUNSHAN KENBO SEALING SCI & TECH
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AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: The present invention provides a double-lip oil seal device, which adopts the design of adding side lips, combines the characteristics of radial oil seal and axial oil seal to seal the shaft and the plane perpendicular to the axial direction, and has better dustproof effect , to solve the problem of impurities entering the hydraulic medium due to poor sealing effect in the prior art

Method used

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Embodiment Construction

[0020] A double-lip oil seal sealing device, which has a skeleton 5, and the skeleton 5 is provided with: lip rubber 1, reinforcing rib 2, spring 3, side lip 4 and first ring groove 7; the lip rubber 1 and the first An annular groove 7 is arranged on the plane of the sealing surface of the skeleton 5 , the side lip 4 is arranged at the bottom of the first annular groove 7 , and a spring 3 is arranged in the space opposite to the sealing surface of the skeleton 5 . The rubber part of the lip is used, which is elastic and has a good sealing effect on the shaft; the spring part is used to provide a certain binding force on the lip of the oil seal and prolong the life of the oil seal;

[0021] In the aforementioned double-lip oil seal sealing device, the reinforcing rib 2 is an L-shaped metal part. It is preferably made of materials such as iron and steel. The rib part is used to increase the rigidity in the basic skeleton of the double-lip oil seal sealing device so that the oil...

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Abstract

The invention discloses a double-lip oil-seal sealing device. The double-lip oil-seal sealing device is provided with a framework, wherein the framework is provided with lip rubber, reinforcing ribs, springs, lateral lips and first annular grooves; the lip rubber and the first annular grooves are arranged on a plane of a sealing surface of the framework; the lateral lips are arranged at the bottoms of the first annular grooves; springs are arranged on gaps opposite to the sealing surface of the framework. The double-lip oil-seal sealing device provided by the invention has the advantage that a plane where shafts are vertical to each other is sealed in combination with characteristics of a radial oil seal and an axial oil seal, and has a relatively good dustproof effect.

Description

technical field [0001] The invention belongs to the technical field of mechanical components, in particular to a double-lip oil seal sealing device. Background technique [0002] Oil seal, that is, the seal of lubricating oil. The sealing device is used to prevent fluid or solid particles from leaking from the joint part of the device and to prevent external impurities such as dust, moisture, oil, etc. from invading the internal parts of the mechanical equipment. It is used to isolate the oil chamber from the outside world. Oil seal inside, dustproof outside. It is widely used in many industries such as household appliances, automobile engines, chemical industry, etc., and is often used in bearings of various machinery, especially rolling bearings. Infiltration of dust not only wears out the seals, but also greatly wears out the guide bushes and piston rods. Impurities entering the hydraulic medium can also affect the function of the operating valves and pumps, and in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/3232F16J15/3284F16J15/3252
CPCF16J15/3232F16J15/3252F16J15/3284
Inventor 诸立亚袁丽芬
Owner KUNSHAN KENBO SEALING SCI & TECH
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