Slidable full-ceramic bearing

Abstract

The invention discloses a slidable full-ceramic bearing which comprises an inner bearing tube and an outer bearing tube arranged on the outer part of the inner bearing tube. The inner bearing tube comprises an inner straight tube part and an inner inclined tube part; the outer bearing tube comprises an outer straight tube part and an outer inclined tube part; an outer screw thread is formed in anouter tube wall of the inner straight tube part; and an inner screw thread is formed in an inner tube wall of the outer straight tube part; the inner straight tube part and the outer straight tube part are in threaded connection; a plurality of filling holes are formed in the inner inclined tube part in a penetrating way along a circumferential direction of the inner inclined tube part; and lubricating pieces are embedded into the filling holes. According to the slidable full-ceramic bearing provided by the invention, through screwing the inner bearing tube and the outer bearing tube, a clearance between the inner inclined tube part and the outer inclined tube part is reduced, so that the lubricating pieces abutting against an inner wall surface of the outer inclined tube part move towardthe center of the inner bearing tube so as to be adjustably stretched out after being worn, the effect on continuously lubricating a shaft through the lubricating pieces is achieved, direct rubbing between the shaft and the bearing is prevented, the wearing speed is slow, the service life of the bearing is prolonged, and the slidable full-ceramic bearing is perfect in overall functions and high inpracticability.

Description

technical field [0001] The present invention relates to a bearing, more specifically, it relates to a sliding full ceramic bearing. Background technique [0002] The current sliding bearings are mainly metal-based sliding bearings, composite material sliding bearings and engineering plastic sliding bearings. In the use of sliding bearings, lubricants are generally required, and some sliding bearings are opened on the bearing wall. A solid lubricant is embedded in the hole to play a lubricating role, but the contact part will be worn out after long-term use, resulting in the inability of the solid lubricant to play a lubricating role, and direct friction between the shaft and the bearing. The wear speed is fast, the service life is reduced, and the overall effect is not good. Accordingly, the present invention proposes a sliding full ceramic bearing. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the above-mentio...

AI Technical Summary

Problems solved by technology

[0002] The current sliding bearings are mainly metal-based sliding bearings, composite material sliding bearings and engineering plastic sliding bearings. In the use of sliding bearings, lubricants are generally required, and some sliding bearings are opened on the bearing wall. A solid lubricant is embedded in the hole to play a lubricating role, but the contact part will be worn out after long-term use, resulting in the inability of the solid lubricant to lubricate, and direct friction between the shaft and the bearing. Fast wear, reduced service life, poor overall effect

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