High-temperature-resistant O-shaped sealing ring and automatic assembling method thereof

Abstract

The invention discloses a high-temperature-resistant O-shaped sealing ring and an automatic assembling method thereof.The high-temperature-resistant O-shaped sealing ring comprises a sealing ring body, an auxiliary clamping device and a dustproof cleaning device, a sealing ring groove is formed in one side of the outer surface of the sealing ring body, and four rectangular limiting grooves are formed in the side, away from the sealing ring groove, of the outer surface of the sealing ring body; the inner wall of the rectangular limiting groove is slidably connected with a dovetail limiting block. According to the scheme, by arranging the rectangular limiting groove, the dovetail limiting block and the limiting annular plate, when the sealing ring body deforms, the dovetail limiting block can be driven to slide in the rectangular limiting groove, and the dovetail limiting block slides so that the sealing ring body can deform in the movement direction of the sealing ring body; according to the sealing ring, irregular deformation in other directions is restrained to a certain degree, the limiting circular ring plate can enable the appearance of the sealing ring body to be kept in a circular ring shape when deformation force acts on the appearance, and the situation that the sealing performance is affected due to irregular deformation of the sealing ring body is avoided.

Description

technical field [0001] The invention relates to the technical field of O-shaped sealing rings, and more particularly, to a high-temperature-resistant O-shaped sealing ring and an automatic assembly method thereof. Background technique [0002] The O-ring rubber seal is composed of a low-friction filled PTFE ring and an O-ring rubber seal. The O-ring provides sufficient sealing preload and compensates for the wear of the PTFE ring. The PTFE friction coefficient Small, with similar coefficient of dynamic and static friction, suitable for high and low speed reciprocating motion and high pressure system cylinder piston rod seal, using two stepped ring seals, can achieve zero leakage, O-type rubber seal ring is widely used in diesel locomotives, automobiles, tractors, engineering Seals of machinery, machine tools and various hydraulic and pneumatic components can undertake the sealing of fixed, reciprocating and rotating motions. In the sealing of mechanical products, O-type rubb...

AI Technical Summary

Problems solved by technology

[0004] 1. The texture of the O-ring is made of rubber. After a long time of use, the rubber is easy to age and deform, which makes the sealing effect worse and affects the normal use;

[0005] 2. The sealing ring and the sealing object are fixed by friction. Once the rubber is aged, it is very easy to separate the sealing ring from the sealing object, which will cause the position of the sealing ring to change, and it is easy to touch other parts and damage other parts. ;

[0006] 3. The contact between the sealing ring and the sealing object is very easy to accumulate dust, and the dust will corrode the corners of the sealing ring, causing gaps in the corners of the sealing ring, which in turn makes the dust enter the inside of the sealing object, which is very inconvenient;

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