What pile driving machine should be used for the 400*400 square pile?
When in operation, the pile hanging in place pile frame in Longmen, then put the diesel hammer at the top of the pile, the hook will lift down the cylinder, and the cylinder sleeve off hook to the whereabouts of the piston, the cylinder will be closed in the air compression cylinder rocker pin until the pressure continues to fall outside the cylinder pushing hammer on the base of the fuel pump, fuel pump will be injected into the cylinder oil mist, oil mist meet high temperature gas burning immediately above, blasting, explosive shock down pile., to push the cylinder to cylinder to rise, fall along the guide rod, and the beginning of the second impact cycle.
A diesel hammer pile driver shall be used.Two, diesel hammer piling machine briefly introduced:Diesel pile hammer body is made of cylinder and plunger, 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 cylinder type diesel hammer takes the cylinder as the hammer seat and directly uses the lengthened cylinder to guide the inner wall. The two guiding rods are omitted, and the plunger is a hammer head, which can move up and down in the cylinder. When piling, the pile cap at the bottom of the hammer block is pressed on the top of the pile, lifting the plunger with a hook, and then decoupling and downward impacting to compress the air enclosed in the cylinder. And fuel injection, explosion, shock, ventilation and other work processes. Diesel hammer work is on compression ignition diesel to start, it is necessary to ensure the closed gas cylinder reaches a certain compression ratio, sometimes piling in soft soil layer is often because the reaction is too small, the amount of compression is not sufficient to ignite the ignition, it needs to use the hook to lift a hammer from multiple impact, to start. The hammer seat of the diesel hammer is provided with a fuel injection pump, an oil tank, a cooling water tank and a pile cap. The movable gap between the plunger and the cylinder is sealed with an elastic plunger ring.
