A kind of embedded elastic retaining ring dust cover and its production and installation method

Abstract

The invention discloses an embedded elastic retaining ring dust cover and a fabrication and installation method thereof. The dust cover comprises a dust cover body and an elastic retaining ring. The elastic retaining ring is embedded in the dust cover body. After being compressed and fixed, the elastic retaining ring is vulcanized in the dust cover body. Through holes are formed in two ends of the elastic retaining ring. A rail vehicle anti-roll-torsion bar device comprises a metal joint bearing and the embedded elastic retaining ring dust cover. A retaining ring groove is arranged on the rail vehicle anti-roll-torsion bar device. The embedded elastic retaining ring dust cover is installed in the retaining ring groove. The embedded elastic retaining ring dust cover can strengthen the connection strength at the dust cover ends, and at the same time, provide a highly reliable installation manner of the retaining ring. The metalwork elastic retaining ring can depend on the self-owned elastic force to fix the dust cover ends within the elastic retaining ring groove. Because of the stability of the metalwork, the dust cover can hardly shrink or expand in the circumferential direction to lose a dustproof effect, and enormously enhance the connection reliability of the dust cover.

Description

technical field [0001] The invention relates to the technical field of anti-rolling torsion bars for rail vehicles, and can also be derived to other fields where similar dustproof covers are applied. The invention specifically relates to a new type of embedded elastic retaining ring type dust cover and its manufacturing and installation method. Bearing dustproof, anti-roll torsion bar support seat dustproof, etc. Background technique [0002] Most of the existing rail vehicle anti-roll torsion bar dust covers and other metal joint bearing dust covers are made of pure rubber. The difficulty of deformation requires thick rubber at the joint to provide sufficient joint strength, while the deformed area requires thinner rubber to obtain suitable deformation conditions. Although the structure of pure rubber parts can provide connection strength by increasing the thickness, it is often very limited, and the rubber is too thick to make the dust cover and the matching structure co...

AI Technical Summary

Problems solved by technology

Although the structure of pure rubber parts can provide connection strength by increasing the thickness, it is often very limited, and the rubber is too thick to make the dust cover and the matching structure complex, especially the joint bearing can provide a very limited space for installing the dust cover; Rubber parts are also greatly affected by temperature. In actual engineering applications, the dust cover will fall off and the protected parts will fail. High temperature will make the rubber parts soft and easy to fall off. Low temperature will make the rubber parts It becomes hard and brittle, so the deformation cannot meet the requirements of the working conditions and is pulled off

[0007] 2. The dust cover formed by adding metal reinforcement ribs locally to the rubber part provides the strength of the joint, and the circumferential direction of the dust cover is not easy to shrink or expand to cause dust-proof failure, but its axial positioning is difficult, and often has to be Use less reliable methods such as glue bonding, which also increases the difficulty of installing the dust cover

The content of the above patents is pure rubber parts and a dust cover with a rigid metal ring, which needs to be further improved in terms of the strength of the joint at the end of the dust cover.

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