a sealing roller

Abstract

The invention discloses a sealed roller, which comprises a roller body. Mounting grooves are formed at both ends of the roller body; A ring-shaped sealing diversion film is installed, and a labyrinth sealing structure is installed on the outside of the sealing diversion film; The outer end surface is in close contact with the roller body, and the inner end surface is sealed with the rotating shaft; there are several gaps formed along the circumferential direction, and the inner surface of the sealing diversion film is concavely formed with diversion grooves communicating with the gaps. In the present invention, during the rotation of the sealing roller, the anti-corrosion oil stored in the oil tank forms a continuously supplemented and stable anti-corrosion oil film layer at the shaft end and the labyrinth sealing part through the action of the centrifugal force and the sealing diversion film, so as to effectively prevent corrosive gas and The dust enters the inside of the bearing to improve the anti-corrosion effect of the stick.

Description

technical field [0001] The invention relates to the mechanical field, in particular to a sealing roller. Background technique [0002] Belt conveyor is the main equipment for modern bulk material transportation. It is widely used in metallurgy, mining, coal, port, chemical industry, water conservancy, electric power and many other industries. As an important part of belt conveyor, idler rollers work reliably It is a necessary condition for the normal operation of the belt conveyor. With the wide application of belt conveyors with large bandwidth, large capacity, high efficiency and energy saving, economical and environmental protection, the requirements for the use of rollers are getting higher and higher. [0003] The rollers account for a large proportion of the components of the belt conveyor, but they play a very important role. If the design of the rollers does not match the operating environment, it will seriously reduce the service life of the rollers, reduce work eff...

AI Technical Summary

Problems solved by technology

[0003] The rollers account for a large proportion of the components of the belt conveyor, but they play a very important role. If the design of the rollers does not match the operating environment, it will seriously reduce the service life of the rollers, reduce work efficiency, and increase maintenance costs. Especially It is a large closed transfer warehouse, the replacement and maintenance of the rollers will cause a great loss of downtime

[0004] The sealing structure adopted by the traditional roller is a labyrinth seal, which can play a certain role in dustproof and waterproof, and reduce the friction coefficient of the roller. However, when the roller is in an environment with corrosive dust and water mist, the suspended corrosive Dust and mist particles can enter the bearing through the labyrinth, and then corrode the bearing, greatly reducing the service life of the roller, causing production accidents and increasing maintenance costs

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