Rocker arm assembly

Abstract

The invention discloses a rocker arm assembly. The rocker arm assembly comprises rocker arms, rocker arm shafts and a rocker arm seat, and each rocker arm is distributed on one side of the rocker arm seat through the corresponding independent rocker arm shaft. The rocker arms are distributed on the left side and the right side of the rocker arm seat through the rocker arm shafts correspondingly, the rocker arm shaft on the left side is distributed at the front end, and the rocker arm shaft on the right side is distributed at the rear end. The rocker arm assembly has the advantages of being simple in structure, flexible to assemble, good in reliability and the like.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a rocker arm assembly. Background technique [0002] The intake and exhaust mechanism is composed of camshaft, tappet, rocker arm, rocker shaft, rocker seat, valve, valve spring and other parts. The rocker arm drives the valve to open and close, and the rocker arm seat is a part of the intake and exhaust mechanism in the overhead valve engine. The rocker arm is installed on the rocker arm seat through the rocker shaft. One end is driven from the camshaft through the tappet, and the other end is pushed against the valve stem and acts together with the spring to control the opening and closing of the valve. A traditional rocker shaft is just one rod, and then several rocker arms are distributed along the rocker shaft. The current engine space is getting smaller and smaller, and its layout requirements are becoming more and more flexible. It is difficult to use a rocker arm shaft ...

AI Technical Summary

Problems solved by technology

In this situation, it is easy to make the valve stem and valve guide inflexible and cause stuck

In mild cases, the valve push rod is bent or the rocker arm of the valve is broken. In severe cases, the valve head is broken by the piston and falls into the cylinder.

In view of the above problems, there are still few studies at present, and it is difficult to make a breakthrough. The main reason is that the rocker arm assembly is a very traditional and streamlined component. If the rocker arm with high complexity is designed to solve the above problems, it will not only greatly increase the production cost. That is, it is "not worthwhile" in the market. At the same time, the overly complicated design of parts will also increase the possibility of problems. Therefore, to solve the above problems, the valve stem can be effectively prevented by using And when the valve guide is stuck, a very flexible design is required to prevent the above consequences / damages, which is also a difficult point of design or a common technical problem that cannot be effectively solved so far.

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