Assembly class, valve rocker arm assembly, construction machinery or ship
The rocker arm is subjected to a large bending moment during swinging, so it should have sufficient strength and stiffness as well as a small mass. Rocker arms are manufactured from forged steel, malleable cast balls, ductile iron or aluminum alloys. The rocker arm is a two-arm lever with the rocker arm axis as the fulcrum, and the arms are unequal in length. The short arm end is machined with threaded holes to screw in the valve clearance adjustment screws. The long arm end is machined into a circular curved surface, which is the working surface that pushes the valve. The valve transmission group is composed of: valve proportioning gear, camshaft and components, rocker arm shaft and rocker arm assembly, valve pusher, valve, cylinder head, valve seat, valve casing, valve spring valve lock plate and components, valve adjustment screw parts. The valve drive set is all parts from the timing gear to the action of the valve, and its function is to regularly drive the valve to open and close. The valve transmission group mainly includes camshaft, timing gear, tappet and its guide rod, pusher, rocker arm and rocker arm shaft, etc., its function is to make the intake and exhaust valves open and close according to the time specified by the gas distribution phase, and ensure sufficient opening.
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