The power source of our common breaking hammer is the pressure oil provided by the pump station of the excavator or loader, which can more effectively clean the floating stones and the soil in the rock crevices when excavating the building foundation. After a long time of work, it is inevitable that failures will occur. Here are the reasons for the reduction of the working efficiency of the breaking hammer.

As the piston and the outer surface of the cylinder are worn, the original clearance increases, the leakage of high-pressure oil increases, and the pressure decreases, resulting in a decrease in the impact energy of the hammer, so the working efficiency decreases; In the process of use, due to improper use by the operator, the wear of parts is accelerated, the upper and lower guide sleeves are excessively worn, and the guiding effect is lost. The axes of the drill rod and the piston are inclined. When the piston strikes the drill rod, its end face will have an external force that is at a certain angle with the middle line of the piston. The external force can decompose an axial reaction force and a radial force. The radial force makes the piston deflect to one side of the cylinder block, making the original gap disappear, the oil film is damaged, forming dry friction, accelerating the wear of the piston and the cylinder bore, increasing the gap between the piston and the cylinder block, leading to increased leakage, reducing the impact energy of the hammer, thereby reducing the working efficiency of the hammer. Replacing a new piston cannot solve the problem. The new piston and the worn cylinder block work together. Because the cylinder block is worn and the external surface roughness is improved, the new piston will wear faster, and the working efficiency of the hammer cannot be restored.

If the working efficiency of the breaking hammer decreases, you can find the root of the problem and solve it according to the above reasons. The breaking hammer has the advantage of high use efficiency and has been widely used in the field of building roads.