A self-lubricating sliding bearing with full-life surface texture

Abstract

The invention relates to the technical field of bearings, and discloses a self-lubrication sliding bearing with a full-life surface texture. An internal support frame, peripherally positioned, is arranged between split bearing bushings; an external support cover, radially positioned, sleeves the split bearing bushings and the internal support frame; end covers are arranged at the two ends of the external support cover; the end cover and the internal support frame, and the end cover and the external support cover are fixedly connected through internal hexagonal bolts; the split bearing bushingsare made of PTFE base long carbon fiber oriented composite materials; and long carbon fibers in the PTFE base long carbon fiber oriented composite materials are perpendicular to working surfaces of the split bearing bushings. The PTFE base long carbon fiber oriented composite materials are machined as the split bearing bushings, and the surface textures of the split bearing bushings permanently exist on friction surfaces in the wearing process, so that excellent dynamic pressure oil films and self-lubricating effect are achieved; and such effects as low friction coefficient, high wear resistance, corrosion resistance and excellent vibration reduction and noise lowering performance are achieved.

Description

technical field [0001] The invention belongs to the technical field of bearings, and in particular relates to a self-lubricating sliding bearing. Background technique [0002] Sliding friction occurs when the sliding bearing works, and the magnitude of the sliding friction mainly depends on the material properties of the bearing mating surface. In the process of sliding friction, the surface microstructure with a certain shape and size is artificially processed on the bearing mating surface by mechanical means, which is called surface texture. The surface texture can store lubricating fluid, increase the bearing capacity of the lubricating film, improve the lubricating effect, and improve the anti-wear performance. However, the surface texture formed by traditional materials is easy to wear during the use of the bearing, resulting in a limited service life of the surface texture. [0003] Sliding bearings are divided into integral and split sliding bearings. In integral s...

AI Technical Summary

Problems solved by technology

In integral sliding bearings, the gap between the shaft and the bearing pad cannot be adjusted, and the material of the bearing pad needs to be processed as a whole, which is difficult to process and costly to replace.

However, the split bearing pad of traditional split sliding bearings is generally composed of upper and lower parts. The split bearing pad made of composite materials is processed into upper and lower parts with low efficiency, difficulty and high cost.

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