Accessories

The plunger pump is an important device of the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder block to change the volume of the sealing working chamber to achieve oil absorption and pressure. With the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation, plunger pump are widely used in high pressure, large flow and flow regulation occasions, such as hydraulic press, engineering machinery and ships.
A plunger pump is a kind of reciprocating pump, which belongs to a volume pump. Its plunger is driven by the eccentric rotation of the pump shaft, reciprocating movement. Its suction and discharge valves are check valves. When the plug is pulled out, the pressure in the chamber decreases, and the outlet valve is closed. When the plug is lower than the inlet pressure, the inlet valve opens and the liquid enters. When the plunger is pushed in, the chamber pressure increases, and the inlet valve closes. When the plug is higher than the outlet pressure, the outlet valve opens and the liquid is discharged. When the transmission shaft drives the cylinder block to rotate, the swashplate pulls out or pushes the plunger from the cylinder block to complete the oil suction and drainage process. The oil in the working chamber composed of the plunger and the cylinder hole is respectively communicated with the oil suction and discharge cavities of the pump through the oil distribution plate. The variable mechanism is used to change the inclination of the swashplate. The displacement of the pump can be changed by adjusting the inclination of the swashplate.