Highly wear resistant self-lubricating roller

Abstract

The invention belongs to the roller technical field, in particular to a high wear-resistant self-lubricating roller. The high wear-resistant self-lubricating roller is technically characterized in that: the high wear-resistant self-lubricating roller comprises an axis made of metal material, the axis is wound with a buffer material layer; the outside of the buffer material layer is cast in a high wear-resistant self-lubricating material layer. As a further improvement of the high wear-resistant self-lubricating roller, the buffer material layer is a fiber cloth layer with a thickness of between 2 and 4mm so that the high wear-resistant self-lubricating material layer can avoid expansion split or shed due to the temperature change and is directly cast through mould with simple process and not easy to deviate the center, increasing the using life of the high wear-resistant self-lubricating roller. The high wear-resistant self-lubricating roller can be widely applied to various filtration or cloth equipments.

Description

High wear-resistant self-lubricating roller technical field The invention relates to a roller, in particular to a high wear-resistant self-lubricating roller. Background technique In the ore screening or distributing process, the service life of the roller and the production cost directly affect the screening or distributing cost. Most of the currently used rollers are made of high wear-resistant self-lubricating layer by directly casting high-wear-resistant self-lubricating plastics and other materials on the shaft center. In this way, the wear-resistant performance of the metal shaft directly used is greatly improved, and the metal Corrosion resistance of the shaft, and the process is simple. However, as the shaft core and wear-resistant layer made of different materials, due to their different coefficients of thermal expansion and contraction, internal stress is easily generated between them when the temperature changes, making the high wear-resistant self-lubricating ...

AI Technical Summary

Problems solved by technology

However, as the shaft core and wear-resistant layer made of different materials, due to their different coefficients of thermal expansion and contraction, internal stress is easily generated between them when the temperature changes, making the high wear-resistant self-lubricating layer easy Cracks or falls off, reducing service life

Later, in order to solve the problem that the high wear-resistant self-lubricating layer is easy to crack or fall off due to stress, the applicant invented a high wear-resistant self-lubricating sleeve with an inner diameter larger than the outer diameter of the shaft center outside the shaft center. The shaft center and the high wear-resistant self-lubricating sleeve are connected by riveting rods along the radial direction of the shaft center

In this way, when the temperature changes, since there is a certain space between the outer wall of the shaft center and the inner wall of the high wear-resistant self-lubricating sleeve, it is not easy to cause the high wear-resistant self-lubricating sleeve to break. However, when assembling, anchoring is required, and the process is cumbersome and High precision requirements, it is easy to cause axis deflection

Images