How to sort the plunger pump? Plunger pump is mainly in accordance with the structure and working principle of plunger pump to be classified. Before using the product, the user always cares about the features of the product, the working principle of the product, the type of the product, etc. The understanding of these products may not only affect the choice of product but also may affect the subsequent use of the product. So what is the classification of piston pump? How does the plunger pump work? The following will do a detailed analysis: The following figure is the structure of the plunger pump: Classification of plunger pump and the working principle of the structure Figure 1, what are the plunger pump classification? Piston pump classification The main axial piston pump, straight shaft swash plate piston pump, radial piston pump, hydraulic piston pump and other four categories. 1) What is the axial piston pump: axial piston pump piston or plunger reciprocating direction and the central axis of the cylinder parallel to the plunger pump. Axial piston pump is the use of the plunger parallel to the shaft reciprocating motion in the plunger hole volume changes to work. 2) What is a straight shaft swash plate piston pump: Straight shaft swash plate piston pump is divided into two types of pressure supply type and self-suction type. Most of the pressure supply type hydraulic pump with air pressure tank, there are hydraulic pump itself with a charge pump to the hydraulic pump inlet to provide pressure oil. 3) What is the radial piston pump: Radial piston pump can be divided into the valve with the flow of the two major categories with the shaft. Valve distribution radial piston pump has the disadvantage of high failure rate and low efficiency. The international development of the 70,80 generation shaft radial flow radial piston pump to overcome the valve with radial piston pump deficiencies. 4) What is the hydraulic piston pump: hydraulic piston pump by hydraulic pressure oil tank, each time you start the machine, you must wait for the hydraulic pressure tank to reach the use of pressure before operating the machine. Straight shaft swash plate piston pump is divided into two types of self-suction oil pressure type. 2, the working principle of the plunger pump: When the motor drives the drive shaft to rotate, the plunger pump pump cylinder and the plunger with the rotation, the plunger head will always be in contact with the swash plate, because the swash plate and the cylinder at an angle, so the cylinder When the body rotates, the plunger reciprocates in the pump cylinder. It goes from 0 ° to 180 °, that is, to the position of the upper plunger, the volume of the plunger cylinder is gradually increased so that the fluid is drawn into the cylinder through the oil suction port a of the oil plate; and the plunger is rotated from 180 ° to 360 °, the cylinder volume gradually decreases, so the liquid in the cylinder is discharged through the outlet of the oil pan. As long as the drive shaft is constantly rotating, the pump will continue to work. Through the classification of the plunger pump analysis and analysis of the working principle of the plunger pump, we can more clearly understand such products. Product classification and working principle is the performance of the product value. As demand for such products continues to grow, more attention should be paid to the study of these two parameters. (This article published by the Asian Fluid Network 20170328)