Self-compensation sealing device

Abstract

The invention relates to a self-compensation sealing device which is suitable for rotary devices in industrial and mining enterprises, in particular to carrier rollers and the like. The self-compensation sealing device comprises a sealing ring, wherein the sealing ring is a C-groove sealing ring with a V-shaped rubbing surface; a C-shaped groove is formed on the circumference of the sealing ring; an O-shaped rubber cup ring is arranged in the C-shaped groove; the V-shaped rubbing surface is arranged at the aperture position of the sealing ring; an antiwear plastic sleeve is arranged in the aperture of the C-groove sealing ring with the V-shaped rubbing surface; the antiwear plastic sleeve is fixedly sleeved on a shaft; the C-groove sealing ring with the V-shaped rubbing surface is in rotary frictional connection with the antiwear plastic sleeve; the C-groove sealing ring with the V-shaped rubbing surface is prepared from an ultrahigh molecular weight polyethylene material with the molecular weight less than 3,000,000; and the antiwear plastic sleeve is prepared from an ultrahigh molecular weight polyethylene material with the molecular weight more than 5,000,000. The self-compensation sealing device has the advantages of wear resistance, self-compensation, corrosion resistance, high sealing property, impact resistance, long-time wear resistance and long service life.

Description

technical field

[0001] The invention relates to a sealing device, in particular to a self-compensating sealing device, which is suitable for rotating devices of industrial and mining enterprises, especially for supporting rollers and the like. Background technique

[0002] Idler rollers are widely used in belt transportation equipment in industrial and mining enterprises. The operating environment is relatively harsh, often accompanied by powder, dust, moisture and corrosive substances during operation, and most of the sealed bearings are made of iron materials. It is inconvenient to check and repair in the dark roadway, there are many maintenance personnel, it is not resistant to corrosion and wears quickly, the service life is short, and the inspection efficiency is low. In addition, the steel rolling bearings used in the idlers need regular maintenance, especially in the case of poor sealing, the steel bearings will greatly reduce their service life due to the infiltratio...

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