How is an air hammer controlled?
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The power for an air hammer comes from air, right? It doesn’t require a motor, does it? Is an air hammer activated by electrical signals?
Working principle of the air hammer: The electric motor, through a reduction mechanism and crankshaft along with connecting rods, drives the compression piston in the compression cylinder to move up and down, thereby generating compressed air. When the upper and lower air passages of the compression cylinder are connected to the atmosphere, compressed air does not enter the working cylinder; the motor runs idle and the hammer head does not function. By operating the upper and lower rotary valves via a handle or pedal, compressed air can be directed into the upper or lower part of the working cylinder, pushing the working piston up and down and thereby causing the hammer head and the upper grinding stone to rise or fall, thus carrying out various striking actions. There are four ways of connecting the rotary valve to the two cylinders, which allow for four actions: lifting the hammer, continuous striking, pressing down, and idling.