Joint bearing for mounting automobile camshaft

Abstract

The invention discloses a joint bearing for mounting an automobile camshaft. The joint bearing comprises a first fixing part and a second fixing part; the top ends and bottom ends of the first fixingpart and the second fixing part are each provided with a locking bump; each locking bump is fixed through a bolt; a bearing body is fixedly clamped by the first fixing part and the second fixing part;the bearing body comprises a bearing outer ring, a bearing inner ring and balls; the bearing outer ring externally sleeves the bearing inner ring; the balls are uniformly distributed between the bearing outer ring and the bearing inner ring; the bearing outer ring is provided with a plurality of spherical cavities; gaps between the spherical cavities and the bearing outer ring and the bearing inner ring communicate with one another via small holes; between adjacent spherical cavities is provided with a connecting channel; and the first fixing part is provided with a lubricating oil storage cavity body. The joint bearing disclosed by the invention is ingenious in structure and convenient to use, can be automatically fed with lubricating oil without manual feeding and is simple and convenient in use; and moreover, an oil discharging pipe achieves a one-way oil conveying effect, so the lubricating oil cannot flow back to the lubricating oil storage cavity body.

Description

technical field [0001] The invention belongs to the technical field of automobile parts, and in particular relates to a joint bearing for installing an automobile camshaft. Background technique [0002] The camshaft is a component in a piston engine. Its function is to control the opening and closing of the valve. Although the speed of the camshaft in a four-stroke engine is half that of the crankshaft (the speed of the camshaft is the same as that of the crankshaft in a two-stroke engine), it usually still has a high speed and needs to withstand a large torque, so the design of The camshaft has high requirements on strength and support, and its material is generally high-quality alloy steel or alloy steel. Because the valve movement law is related to the power and running characteristics of an engine, the camshaft design plays a very important role in the engine design process. [0003] Camshaft installation requires spherical plain bearings. At present, the spherical p...

AI Technical Summary

Problems solved by technology

Currently used spherical plain bearings, because the inner and outer rings are made of bearing steel, the friction coefficient is relatively large, and the wear is serious at the moment of starting, which affects the service life of the bearing. Therefore, lubricating ingredients should be added during the working process.

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