Processing method of mechanical tappet structure

Abstract

The invention provides a processing method of a mechanical tappet structure, and the method is applied to the technical fields of mechanical tappet structures. The processing method comprises a processing method for a tappet shell (1) and a processing method for a gasket (2). Employment of the processing method provided in the invention improves surface hardness and wear resistance of the tappet structure, reduces the wear influence caused by sliding friction to the minimum, also avoids the situations of wearing and crushing, and at the same time, can improve the heat resistance and corrosion resistance of the tappet structure so as to substantially extend the service life of parts. In addition, adoption of processing method of the invention can form a lot of holes on the surface of the tappet shell, and the holes can absorb various lubricants, so that the frictional resistance can be reduced, and the relative rotation among parts can be more flexible.

Description

technical field [0001] The invention belongs to the technical field of mechanical tappet structures, and more specifically relates to a processing method for mechanical tappet structures. Background technique [0002] The overhead camshaft transmission method has gradually become a more common transmission method for valve trains due to the advantages of fewer transmission chains, less moving parts, small inertial force, and high mechanism rigidity. The mechanical tappet is the key component that converts the rotation of the camshaft into the linear motion of the valve. During the high-speed operation of the engine, the mechanical tappet rubs against the camshaft at high speed, and at the same time, the mechanical tappet rubs against the cylinder head hole at high speed, which is easy Abrasion or even crushing occurs on some mating surfaces. This will directly cause the engine to be unable to complete the gas distribution action with high performance, and even seriously cau...

AI Technical Summary

Problems solved by technology

This kind of mechanical tappet has the problem of reduced service life due to high-speed wear and tear. At the same time, the excessive weight of this mechanical tappet also increases the mechanical loss of the engine, which is not conducive to the energy saving of the engine.

However, the surface hardness and roughness of mechanical tappets made of light materials are relatively low, which is not enough to withstand high-speed relative sliding, and is prone to wear, crushing, etc., and at the same time reduces the cleanliness of the engine oil. , serious may lead to the failure of the entire valve train device

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