A joint bearing for installing an automobile camshaft

Abstract

The invention discloses a joint bearing for installing an automobile camshaft, which comprises a first fixing piece and a second fixing piece, the top and bottom ends of the first fixing piece and the second fixing piece both have locking protrusions, and the locking protrusions The bearing body is clamped and fixed by the first fixing piece and the second fixing piece. The bearing body includes a bearing outer ring, a bearing inner ring and balls. The bearing outer ring is sleeved outside the bearing inner ring, and the balls are evenly distributed on the Between the bearing outer ring and the bearing inner ring, there are multiple spherical cavities on the bearing outer ring. The spherical cavities communicate with the gap between the bearing outer ring and the bearing inner ring through small holes. There are gaps between adjacent spherical cavities. The connecting passage is provided with a lubricating oil storage cavity on the first fixing member. The invention is ingenious in structure, easy to use, can automatically add lubricating oil without manual addition, simple and convenient to use, and the oil outlet pipe has the effect of one-way oil passage, so that the lubricating oil will not flow back into the lubricating oil storage cavity.

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.

Images