What are the parts of a pile driver?
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. 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. 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. Four, hydraulic hammer piling machine is a diesel belt start, to the oil pressure as the driving force, can be adjusted according to the formation of different soil pressure, in order to achieve the appropriate impact force for piling, is a new type of pile driver. Small and medium-sized hydraulic pile driver, commonly used in highway guardrail piling, highway guardrail construction. Similar pile driving equipment are: hydraulic pile driver, road pile driver, guardrail, pile driver, road drilling machine.
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.
