Double-layered composite carrier roller

Abstract

The invention provides a double-layered composite carrier roller which comprises a roller, bearing pedestals, sealing devices, bearings, a main shaft and snap rings; the two bearing pedestals are arranged at two ends of the roller, and are mounted on the main shaft through the bearings; the sealing devices are arranged on the main shaft on the outer sides of the bearings; the snap rings are arranged on the main shaft on the two sides of the sealing devices; outer rings of the sealing device are in contact with inner rings of the bearing pedestals tightly; the roller comprises a roller lining and a roller wear resistant layer; a groove is formed in the outer surface of the roller lining; convex ribs matched with the groove are arranged on the inner surface of the roller wear resistant layer; and the roller wear resistant layer is clamped on the peripheral surface of the roller lining. After the scheme is adopted, the roller of the carrier roller is integrally made of a polymer matrix composite material, and the weight of the roller of the carrier roller is more than doubled in comparison with a steel carrier roller, so that the transportation, the installation and the maintenance ofthe carrier roller are more convenient, and the operation is more energy-saving.

Description

technical field [0001] The invention relates to the technical field of conveyors, in particular to a double-layer composite idler roller. Background technique [0002] Belt transport is the main mode of bulk material transport, and is widely used in bulk material transport in industries such as mines, metallurgy, power plants, coal, cement, grain depots, ports and saltworks. The idler roller is the core component of the belt conveyor, and its performance directly affects whether the belt conveyor can operate normally. At present, the existing belt conveyor rollers on the market mainly include several types such as steel rollers, plastic rollers, and ceramic rollers. During use, these rollers have more or less fatal shortcomings. Traditional steel rollers have poor wear resistance, especially after long-term wear, the surface is prone to burrs, which will cause scratches and scratches on the belt, resulting in major economic losses; it is easy to rust and has a long service...

AI Technical Summary

Problems solved by technology

In the process of use, these rollers have some fatal shortcomings more or less

Traditional steel rollers have poor wear resistance, especially after long-term wear, the surface is prone to burrs, which will cause scratches and scratches on the belt, resulting in major economic losses; it is easy to rust and has a long service life when used in a highly corrosive environment Extremely short; heavy, inconvenient for transportation, installation, and maintenance, which significantly increases the cost of production and use

Plastic rollers have the advantages of light weight, impact resistance, corrosion resistance, and low noise, but their properties such as wear resistance, heat resistance, weather resistance, and mechanical strength obviously cannot meet market demand

Although the ceramic idler has the advantages of wear resistance, oxidation resistance, and acid and alkali resistance, it has the disadvantages of high brittleness, heavy weight, inconvenient installation, and poor concentricity. There is a significant difference in the coefficient of thermal expansion, which leads to a significant reduction in its actual service life

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