45V-50A-1B-22R vane pump working principle and parameters

As a world-renowned hydraulic brand, Yihe Hydraulics' products are widely used in many fields such as machinery manufacturing, earth-moving machinery, agriculture, construction, etc. This article will introduce in detail the working principle and key parameters of Yihe Hydraulics' 45V-50A-1B-22R quantitative vane pump.

1. Working Principle

The working principle of the vane pump is based on the relative movement between the rotor and the stator, and the sealing effect of the vanes under the action of centrifugal force and oil pressure. The vane oil pump is mainly composed of the rotor, stator, vanes, oil distribution plate and end cover. The inner surface of the stator is a cylindrical hole, and there is an eccentric distance between the rotor and the stator. The vanes can slide flexibly in the rotor slot. When the rotor rotates, the vanes are close to the inner surface of the stator under the action of centrifugal force and root pressure oil, forming a sealed working chamber.

Oil suction process: When the rotor rotates, the blades gradually extend, the volume of the working chamber gradually increases, a vacuum is generated, and the oil is sucked in through the oil suction port and the window on the oil distribution plate.

Oil pressing process: As the rotor continues to rotate, the blades are gradually pressed into the blade grooves by the inner wall of the stator, the volume of the working chamber gradually decreases, the oil pressure increases, and is pressed out through the oil pressure port.

2. Key parameters

Model: 45V-50A-1B-22R

Geometric displacement: 156 cm³/r.

Maximum operating pressure: 172 bar.

Maximum speed: 1800 r/min.

Efficiency: Volumetric efficiency and total efficiency are high, reaching a certain level, such as 50% and 95% respectively.

Noise: Relatively low, usually around 6dB(A).

Material: Cast iron.

Weight: 34/37 KG.

3. Summary

45V-50A-1B-22R hydraulic vane pumps are widely used in the fields of mechanical manufacturing and hydraulic systems due to their high efficiency, stability and low noise. Understanding their working principles and key parameters will help you better select and use these products and improve the performance and reliability of the system. In actual applications, they also need to be adjusted and optimized according to specific needs and working environment to ensure the best use effect.