Centripetal spherical plain bearing

Abstract

The invention relates to a central spherical plain bearing which comprises outer rings and inner rings, wherein each outer ring is formed by two outer ring bodies that are arranged in an abreast way along the axial direction; the outer cylindrical surfaces of the two outer ring bodies are respectively provided with a thread; the outer ring bodies are fixed on bearing saddle bores by the threads; and an axial clearance is arranged between the two outer ring bodies of each outer ring. After the structure is adopted, when the bearing is worn, the outer ring bodies are screwed in towards the middle parts, so that bearing windages are eliminated, and the bearing abrasion loss is compensated; and furthermore, the bearing rotates under a certain shaking moment, so that the noise caused in the using process can be eliminated. The radial spherical plain bearing is simple in structure and convenient to install and maintain.

Description

technical field [0001] The invention relates to a radial joint bearing. Background technique [0002] In the existing radial joint bearings, the cooperation between the outer ring and the seat hole adopts the matching method of the hole and the cylindrical surface. The outer ring is composed of two axially separated outer ring bodies. One type: for example, the patent number is ZL 02208324.3 discloses the double-half outer ring radial joint bearing, the two outer ring bodies are locked together by bolts, and the outer ring bodies are combined into one to form a whole; another kind of double outer ring body radial joint bearing, two There is a partition between the outer ring bodies. When installing, the two outer ring bodies and the partition board are installed in the seat hole, and the two outer ring bodies and the partition board form a complete outer ring. For the above two types of double-half outer ring radial joint bearings, there is no axial clearance between the tw...

AI Technical Summary

Problems solved by technology

For the above two types of double-half outer ring radial joint bearings, there is no axial clearance between the two outer ring bodies of the bearing. When the bearing is worn, the bearing clearance cannot be eliminated; in addition, when the existing bearing is installed, the bearing is It can rotate flexibly, and cannot meet the requirement that the bearing can only rotate under a certain swing torque, so the noise is large during use

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