Hydraulic Vane Pump

Hydraulic Vane Pump

1.Product Introduction
Generally speaking, if the hydraulic system needs a flow change, especially when the time for a large flow is shorter than the time for a small flow, Hydrotech recommends that it is best to use a double pump or a variable pump.



The Hydraulic Vane pump has the advantages of uniform flow, stable operation, low noise, small size and light weight. It is widely used in machine tools, hydraulic systems, engineering machinery, ships, die-casting and metallurgical equipment.



Hydraulic Vane pumps are mainly divided into two categories: single-acting Hydraulic Vane pumps and double-acting Hydraulic Vane pumps. The single-acting Hydraulic Vane pump rotor only sucks oil once per revolution. The rotor bears unidirectional radial force, the bearing load is large, and the pump flow can be adjusted. It is also called variable vane pump; double-acting Hydraulic Vane pump rotor per revolution There are two pressure oil suction processes in a week, and the flow of the pump cannot be adjusted, which is called a quantitative vane pump.



According to the pressure level, the vane pump can be divided into: medium and low pressure Hydraulic Vane pump (7MPa), medium and high pressure Hydraulic Vane pump (16MPa), high pressure Hydraulic Vane pump (20-30MPa).

2.Working principle of Hydraulic Vane pump
(1) The working principle of the single-acting Hydraulic Vane pump: The outer surface of the rotor and the inner surface of the stator of the single-acting Hydraulic Vane pump are both cylindrical. The center of the rotor and the center of the stator maintain an eccentricity e. There are oil suction windows and pressure oil windows on the oil distribution pan. When the rotor rotates, the enclosed volume composed of the two adjacent blades, stator, rotor and oil distribution plate in the lower part increases, and the oil is sucked through the oil suction window; while the two adjacent blades, stator, rotor and oil distribution plate in the upper part are composed of The sealed volume is reduced, and the oil is sent to the oil pressure pipe through the oil pressure window. Since the radial hydraulic pressure only acts on the half circumference of the rotor surface, the rotor is subjected to unbalanced radial hydraulic pressure, so the bearing will bear a larger load, and its life will be short, so it is not suitable for high pressure.

(2)Working principle of double-acting Hydraulic Vane pump Working principle of double-acting vane pump: The pump has two suction windows and two pressure windows. The rotor rotates once, and the pump sucks and presses the oil twice. Since the radial hydraulic pressure on the rotor is balanced and the force on the bearing is small, it has a long life and is suitable for medium and high pressure systems.

(3)Order note:
To order Hydraulic Vane pump, Cylinder diameter, stroke, and installation method must be provided, indispensable