Roller bearing used on injection head

Abstract

The invention belongs to the technical field of connection pipe operation equipment and particularly relates to a roller bearing used on an injection head. The roller bearing used on the injection head comprises an inner sleeve (4), an outer sleeve (1), a rolling needle (2) arranged between the inner sleeve (4) and the outer sleeve (1), and thrust ball bearings (3). The thrust ball bearings (3) are fixedly arranged at the end parts of the inner sleeve (4) and the outer sleeve (1). The rolling needle (2) has a three-row split structure. Retaining collars (5) are fixedly arranged outside the thrust ball bearings (3) in the outer sleeve (1). The retaining collars (5) are fixedly connected with the outer sleeve (1) by clamp springs (6). The roller bearing has a wide application range and the end face of the bearing is slightly worn. The prolonging of the service life of the roller bearing of the connection pipe operation equipment is realized. Meanwhile, the problems of a long purchasing period, high price and the like of imported equipment are solved. The roller bearing has a compact structure, small volume and high rotating accuracy and can be used for bearing a certain axial load when bearing a high radial load.

Description

technical field [0001] The invention belongs to the technical field of coiled tubing operation equipment, and in particular relates to a roller bearing used on an injection head. Background technique [0002] At present, the roller bearings used on the injection head of the coiled tubing working machine adopt standard parts, which have good versatility, but are limited by the size of the standard parts, and the application effect is not good. The main performance is that the end faces are severely worn and the bearing life is short. Contents of the invention [0003] The invention aims at overcoming the disadvantages of the prior art and providing a roller bearing used on the injection head with wide application range, long service life and little wear on the end face. [0004] In order to achieve the above object, the present invention is achieved in this way: a roller bearing used on the injection head, which includes an inner sleeve, an outer cover, a needle roller and ...

AI Technical Summary

Problems solved by technology

[0002] At present, the roller bearings used on the injection head of the coiled tubing machine use standard parts, which have good versatility, but are limited by the size of the standard parts, and the application effect is not good. The main performance is that the end faces are severely worn and the bearing life is short.

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