What role does the vane pump play in the hydraulic system?
In the hydraulic transmission system, the energy device provides energy for the entire hydraulic system, just like the human heart transports blood to various parts of the human body and plays a very important role. The hydraulic pump is an energy conversion device that converts the mechanical energy output by the prime mover (electric motor or other power device) into the pressure energy of the liquid. It provides a certain flow and pressure of hydraulic oil to the hydraulic system to meet the needs of the actuator to drive external loads.
The main working part of the vane pump is a rotor with several sliding blades. When the rotor rotates, due to the contour line of the stator cavity or the eccentric configuration of the rotor, the blades slide in the blade grooves, causing the working volume to change, thereby producing a suction and discharge effect.
Hydraulic pumps currently used in hydraulic systems mainly include gear pumps, vane pumps, piston pumps, screw pumps, etc. The first three types of pumps are widely used. Working principle of hydraulic press vane pump. It is mainly composed of oil pressure rotor, stator, blade and end cover. Remarkable with double acting vane pumps. The inner surface of the stator of the vane pump is a circle. There is a certain eccentricity between the stator and the rotor. There is only one oil suction window and one oil pressure window on the oil distribution plates at both ends.
The blades are installed in the rotor slots and can slide within the slots. When the rotor rotates, due to the action of centrifugal force, the blades are close to the inner wall of the stator, thus forming several sealed working spaces between the stator, rotor, blades and oil distribution plates on both sides.
The right blade gradually extends, the working space between the blades gradually increases, and oil is sucked from the oil suction port, which is the oil suction cavity. The left blade is gradually pressed into the slot by the inner wall of the stator, and the working space is gradually reduced, forcing the oil out of the oil pressure port, which is the oil pressure chamber. There is an oil sealing area between the oil suction chamber and the oil pressure chamber, which separates the oil suction chamber and the oil pressure chamber. This type of vane pump completes oil suction and oil pressure in each working space every time the rotor rotates once, so it is called For vane pumps. As the rotor rotates continuously, the pump continuously absorbs and discharges oil.