What are the advantages of hydraulic piston pumps?

Advantages of hydraulic piston pumps:

The piston pump is a hydraulic pump that relies on the reciprocating movement of the piston in the cylinder to cause changes in the sealing volume to achieve oil suction and pressure. Compared with gear pumps and vane pumps, this type of pump has many advantages.

First of all, the parts that make up the sealing volume are cylindrical piston and cylinder holes, which are easy to process, can achieve high matching accuracy, have good sealing performance, and still have high volumetric efficiency under high pressure operation;

Second, the flow rate can be changed by simply changing the working stroke of the piston, making it easy to realize variables;

Third, the main parts in the piston pump are subject to compressive stress, and the material strength properties can be fully utilized.

Because the piston pump has high pressure, compact structure, high efficiency, and convenient flow adjustment, it is used in systems that require high pressure, large flow, and high power and in situations where the flow needs to be adjusted, such as gantry planers, broaching machines, hydraulic presses, engineering machinery, and mining It is widely used in metallurgical machinery and ships. According to the arrangement and movement direction of the pistons, piston pumps can be divided into two categories: radial piston pumps and axial piston pumps. According to the type of flow distribution device, they can be divided into gap seal type flow distribution deputy piston pumps and valves. There are two categories of flow distribution devices: piston pumps. They are divided into fixed piston pumps and variable piston pumps according to whether the displacement is variable.