Spiral pile driver (Spiral hammers) is a power driven drill head drill bit into the underground drilling machine drilling equipment. The spiral pile driver can be divided into two parts: the pile foundation and the drilling part.
The hammer into the exhaust valve reversing by manual control, can also be installed in the side with the hammer and hammer lifting flange lever automatic control, impact stroke two ways can adjust the hammer. Three diesel hammer body is made of cylinder and piston, similar to the working principle and the single cylinder two stroke diesel engine into the cylinder combustion under high temperature and high pressure atomized diesel combustion chamber by injection pressure generated by the detonation driven hammer working. According to the structural form of diesel hammer rod and cylinder type separation. The guide rod type diesel hammer is pressed on the pile cap with a plunger as a hammer seat, and the cylinder is used as a hammer head to move up and down along the two guide rods.
The market is the piling machine of many kinds, small as you introduced under the following four types: first, drop hammer is a heavy piece of steel, by using the hook lifting winch, after decoupling along the guide frame free fall and piling. Two, hammer hammer by the hammer and the hammer seat, with steam or compressed air as a driving force, a single action and double action two hammer hammer. Single acting piston or cylinder as the hammer to hammer, steam driven hammer up, then let the hammer seat along the guide rod fall and piling. Double acting steam hammer is increased as the plunger cylinder as the hammer to hammer, steam driven hammer up, then drive the downward impact hammer piling. The reciprocating speed is high and the frequency is high, so that the pile can vibrate when penetrating into the stratum, and the friction resistance can be reduced, and the pile driving effect is good. Differential two-way unequal force hammer, the hammer seat light weight, effective impact weight can be relatively stronger and better performance.
