What is the basic working principle of hydraulic hammer?
Hydraulic hammer is an impact pile hammer, which can be divided into single-acting and double-acting according to its structure and basic principles. The so-called single-acting type means that the impact hammer core is quickly released after being lifted to a predetermined height by a hydraulic device, and the impact hammer core hits the pile in free fall; the double-acting type means that the impact hammer core is lifted to a predetermined height by the hydraulic device, from The hydraulic system obtains acceleration kinetic energy to increase the impact speed and hit the pile. This also corresponds to the two piling theories respectively. The single-acting hydraulic piling hammer corresponds to the heavy hammer light hammering theory. It is characterized by a relatively large hammer core weight, a lower impact speed, and a longer impact time. It has large penetration, suitable for pile types of various shapes and materials, and low pile damage rate, which is often suitable for driving concrete pipe piles. The double-acting hydraulic piling hammer corresponds to the light hammer heavy-driving theory. It features smaller hammer core weight, higher impact speed, and shorter hammer pile action time. It has large impact kinetic energy and is most suitable for steel pile driving.