Lip seal anti-water structure roller

Abstract

The invention belongs to the technical field of carrier rollers and aims at solving the problem that a carrier roller bearing is poor in sealing and waterproof performance so that the service life of a carrier roller is shortened, normal operation of a belt conveyer is influenced and huge loss on national economy is caused, and providing a lip seal waterproof structure carrier roller. The lip seal waterproof structure carrier roller comprises a carrier roller shaft, a carrier roller body, a bearing seat, an inner seal of the bearing seat, the carrier roller bearing, a lip seal, an O-shaped spring and a mirror face abrasion-resisting sleeve, wherein the inner hole face of the mirror face abrasion-resisting sleeve is provided with an O-shaped sealing ring, the left side of the mirror face abrasion-resisting sleeve is provided with an elastic retainer ring for the shaft, and the left side of the elastic retainer ring for the shaft is provided with an irony cover. The O-shaped sealing ring blocks water between the mirror face abrasion-resisting sleeve and the carrier roller shaft. The lip seal and the O-shaped spring on a right lip prevent the water between the lip seal and the mirror face abrasion-resisting sleeve from flowing into the bearing. The irony cover and the external cylindrical face of the lip seal are in interference fit with the inner hole face of the bearing seat so that the water is prevented from flowing into the bearing from the interference fit position. The lip seal and the mirror face abrasion-resisting sleeve are in contact and perform relative motions, the friction resistance is small, and contradiction between water proofing and resistance increase is overcome.

Description

technical field [0001] The invention belongs to the technical field of idler rollers, and in particular relates to an idler roller with a lip-seal anti-water entry structure. Background technique [0002] The idler roller is a load-bearing part of the belt conveyor and other conveying machinery. The number is large, and its quality affects the overall parameters and quality of the main engine of the belt conveyor. At present, the sealing methods of idler bearings include DTⅡ type 7-piece seal, labyrinth seal, etc. The existing problem is that the anti-water performance is not enough, especially in the case of serious water splashing, this type of sealed idler, Due to the water entering the bearing, the service life of the idler roller is seriously affected, and the service life is reduced to less than 5% of the design life, causing a large number of idler rollers to be damaged, affecting the normal operation of the belt conveyor, and bringing huge economic losses to the nati...

AI Technical Summary

Problems solved by technology

At present, the sealing methods of idler bearings include DTⅡ type 7-piece seal, labyrinth seal, etc. The existing problem is that the anti-water performance is not enough, especially in the case of serious water splashing, this type of sealed idler, Due to the water entering the bearing, the service life of the idler roller is seriously affected, and the service life is reduced to less than 5% of the design life, causing a large number of idler rollers to be damaged, affecting the normal operation of the belt conveyor, and bringing huge economic losses to the national economy. Loss

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