Centripetal joint bearing with dual-half-outer-ring structure and assembling method thereof

Abstract

The invention relates to a centripetal joint with a dual-half-outer-ring structure and an assembling method thereof. The bearing comprises a bearing left half outer ring, a bearing right half outer ring and a bearing inner ring, wherein the bearing inner ring is arranged between the bearing left half outer ring and the bearing right half outer ring. The bearing is characterized in that: the smallends of cross sections of the bearing left half outer ring and the bearing right half outer ring are provided with matched grooves; the outer circumferential surfaces which are assembled together of the bearing left half outer ring and the bearing right half outer ring are provided a continuous corrugated groove; the central line of the corrugated groove on the entire circumferential surface is asine wave line which surrounds a contact line between the bearing left half outer ring and the bearing right half outer ring; and a corrugated ring which is matched with the corrugated wave is arranged in the corrugated groove. The invention has the advantages that: the process problem of the influence of general adoption of mechanical connection in the conventional non-integrated centripetal joint bearing is solved, the connection strength and assembling manufacturability of the dual-half-outer-ring centripetal joint bearing are enhanced, and the application field and range are expanded.

Description

technical field [0001] The invention relates to a joint bearing and an assembly method thereof. Background technique [0002] Joint bearing is a kind of sliding bearing with special structure. It is mainly composed of an inner ring with an outer spherical surface and an outer ring with an inner spherical surface. According to the structure of the outer ring, it can be divided into: integral type and non-integral type, non-integral type Also includes: double half and split. Joint bearings are widely used in aerospace, robotics, transportation and other equipment. Integral joint bearings have the advantages of simple structure, high reliability, and uniform force. However, integral joint bearings are mainly small and medium-sized, and large-scale integral joint bearings with a diameter of more than 300 mm are difficult to manufacture; slotted joint bearings It is easy to manufacture and has high manufacturing precision, but the force is uneven and the bearing capacity is sma...

AI Technical Summary

Problems solved by technology

Integral joint bearings have the advantages of simple structure, high reliability, and uniform force. However, integral joint bearings are mainly small and medium-sized, and large-scale integral joint bearings with a diameter of more than 300 mm are difficult to manufacture; slotted joint bearings It is easy to manufacture and has high manufacturing precision, but the force is uneven and the bearing capacity is small, so it is generally not used for large-scale structures

The double-half joint bearing has the characteristics of convenient manufacture, high manufacturing precision, and uniform force. It is mostly used in large-scale joint bearing structures with a diameter of more than 300 mm. However, the main assembly method of the double-half outer ring at this stage is bolt connection. This assembly process The installation space of the bearing is increased, which limits the application field of the double-half outer ring radial joint bearing to a certain extent. The bolt connection makes it difficult to guarantee the alignment accuracy of the inner spherical surface of the double-half outer ring. The service accuracy and life of the joint bearing are limited by the connecting bolts. limit

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