hydraulic vane pump is divided into structures according to the structure, which can be divided into: single-stage pump, double-stage pump, double-stage pump and compound pump.
1. Single-stage pump: It consists of a set of pump body parts and a set of visceral parts (pump components). It has an oil inlet and an oil outlet to provide constant pressure and flow to a hydraulic system.
2. Double pump: It consists of a set of pump body parts and two different sets of internal organs (pump components). It has one inlet port and two oil outlets, which can provide different one or two sets of hydraulic systems. Pressure and flow.
3. Two-stage pump: It consists of a set of pump body parts and two sets of the same visceral parts (pump core assembly). It has an oil inlet and an oil outlet, which can double the pressure of the low pressure pump. The hydraulic system provides constant pressure and flow.
4.Composite pump: combines other valves on the basis of single-stage pump to form reverse self-locking, liquid flow conversion, constant pressure, stable flow and constant power, etc.
Hydraulic vane pump realizes the oil absorption and the oil discharge according to the change of the volume, so it is also called the volumetric hydraulic pump, which is composed of the outer circle of the rotor, two blades, the inner curved surface of the stator and the distribution plate on both sides. The closed cavity is formed. Due to the change of the length and the short diameter of the curved surface of the stator, the volume of the closed cavity changes continuously while the rotor rotates. When the inner curved surface of the stator changes from the short radial length, the closed cavity increases and forms. The vacuum draws the oil through the suction port of the distribution plate to realize the oil absorption process; when the inner curved surface of the stator changes from the long radial short diameter, the closed cavity is reduced, and the high pressure formed by the compression of the blade passes the oil through the distribution plate. The mouth is discharged to achieve the pressure oil process.