Ultra-high molecular weight polyethylene (UHMWPE) full-plastic roller

Abstract

The invention discloses an ultra-high molecular weight polyethylene (UHMWPE) full-plastic roller, and belongs to the field of transmission machinery. The roller comprises a roller body and a steel shaft arranged in the roller body, wherein, the roller body is formed by embedding two symmetric and uniform structures into a seam allowance and then integrally fastening the structures through a fastening piece; a steel shaft hole is arranged in the roller body; the clearance between an inner wall of the steel shaft hole and an outer wall of the steel shaft is 3mm, and a lining is arranged in the clearance; sealing elements are arranged on two end faces of the steel shaft; steel protective sleeves are arranged on the outer end faces of the sealing elements; and splined holes are uniformly arranged on the periphery between the roller body and the steel shaft. In the full-plastic roller, the roller body is made from polyethylene with the molecular weight of more than 500,000 Daltons, the lining is made from polyethylene with the molecular weight of more than 4,000,000 Daltons, and the sealing elements are made from UHMWPE or UHMW polyurethane. The UHMWPE full-plastic roller has the advantages of reasonable structural design, high cost performance, strong wear resistance, strong corrosion resistance, light weight, low cost, energy conservation, small friction coefficient and long service life, and is flexible and reliable in operation.

Description

technical field [0001] The invention relates to a transmission machine, in particular to an ultra-high molecular weight polyethylene all-plastic idler. Background technique [0002] Belt conveyors are widely used in industries such as electric power, docks, coal, chemical industry, steel and building materials, and idlers are one of the key components of belt conveyors. For a belt conveyor, the value of the idler roller accounts for one-third of the total value. The main damage to the belt conveyor is the idler roller. The idler roller determines the cost and maintenance cost of the belt conveyor in a certain sense. The role of the idler is to support the conveyor belt and materials, and the operation of the idler must be flexible and reliable. Reducing the friction between the conveyor belt and the idlers plays a key role in the life of the conveyor belt, which accounts for more than 25% of the total cost of the conveyor. [0003] In the prior art, the steel idler has the...

AI Technical Summary

Problems solved by technology

[0004] 1. The friction between the roller and the conveyor belt is large, and the service life of the conveyor belt is short;

[0005] 2. The idler roller is polluted by sand, dust and water during the long-term working process, which leads to increased working resistance of the bearing, jamming, and shortens the overall life of the idler roller;

[0006] 3. The idler roller has many disadvantages such as poor wear resistance and corrosion resistance, heavy weight, high cost, short life, non-replaceable wearing parts, complicated manufacturing process, etc.

Although the above two inventions have improved the wear resistance and corrosion resistance of the rollers, they still have the disadvantages of poor waterproof and dustproof performance, large starting torque and rotation resistance, easy jamming, high energy consumption, and short service life of the rollers.

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