Steam Piling Machine

The pile hammer consists of a hammerhead and a ram. It is powered by steam or compressed air. There are two types: single-acting and double-acting hammers. The single-acting steam hammer uses a piston or cylinder as the hammerhead. Steam drives the hammerhead up, then the pile is lowered by a guide rod falling along the hammer seat. The double-acting pile driver typically has a weighted piston as the hammerhead, and the cylinder serves as the hammer seat. Steam drives the hammerhead up and strikes the pile. The reciprocating speed is fast, with a high frequency, causing vibrations in the pile layer penetrating the stratum, reducing friction resistance, and resulting in effective pile driving. The differential speed pile driver has a lightweight bidirectional unequal force, and the effective impact weight can be relatively increased. The direction of steam inlet and outlet valves can be manually controlled or automatically controlled by a flange rod installed on one side of the hammer and lifted by the hammer. Both methods can adjust the impact stroke of the hammer.

Diesel Piling Machine

The main body also consists of a cylinder and a piston. Its working principle is similar to a single-cylinder two-stroke diesel engine. Atomized diesel injected into the cylinder combustion chamber is driven by the strong pressure generated by high pressure and high-temperature combustion. Depending on its configuration, diesel hammers are divided into guide rod type and barrel type. Guide-type diesel hammers press the piston as the hammer seat on top of the hammerhead, and the cylinder as the hammerhead moves up and down along two guide rods. During pile driving, the pile frame is first lifted into the gantry of the pile frame, then the diesel hammer is placed on top of the pile, the hook is lifted to raise the cylinder, and then the hook is released, allowing the cylinder to fall into the piston, compressing the air sealed in the cylinder. The cylinder continues to descend until the pressure pin outside the cylinder pushes the fuel pump's rocker arm on the hammer base, the fuel pump sprays the oil mist into the cylinder, and the oil mist immediately explodes upon encountering high-temperature gas above the ignition point, causing an explosion force that sinks the pile and pushes upward, causing the cylinder to rise.