The development of science and technology has promoted the advancement of hydraulic technology, and hydraulic systems are widely used in various industrial and agricultural fields. Every hydraulic component plays a pivotal role, and the lack of any one will cause the system to be paralyzed. The hydraulic vane pump is an important existence in the hydraulic system. The hydraulic vane pump is also called a positive displacement hydraulic pump, which is an executive element that realizes the functions of oil absorption and oil discharge according to the change of volume. Once the hydraulic vane pump fails, it will affect a series of normal operations of the hydraulic system.
The hydraulic vane pump realizes oil absorption and discharge according to the change of volume, so it is also called a positive displacement hydraulic pump. The change of the long and short diameters of the inner surface, the volume of this closed cavity keeps changing when the rotor rotates. When the inner surface of the stator changes from the short radial to the longer diameter, the closed cavity increases, and the vacuum formed will pass the oil through the distribution plate. When the inner surface of the stator changes from the long radial to the short diameter, the closed volume is reduced, and the high pressure formed by the blade compression discharges the oil through the oil discharge port of the valve plate to realize the oil pressing process.
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