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How hydraulic pumps work
Release time:
2023-12-08 14:44
Hydraulic pump is the power element of the hydraulic system, is driven by the engine or motor, from the hydraulic oil tank to inhale the oil, the formation of pressure oil discharge, sent to the executive element of a component.
The hydraulic pump is the power component of the hydraulic system, which is driven by the engine or the motor, inhales oil from the hydraulic tank, forms a pressure oil discharge, and sends it to the actuator.
Hydraulic pump according to the structure is divided into gear pump, plunger pump, vane pump and screw pump.
1 Gear pump: small volume, simple structure, the cleanliness of the oil is not strict, the price is cheaper; However, the pump shaft is subjected to unbalanced force, serious wear and leakage.
2 Vane pump: divided into double acting vane pump and single acting vane pump. The pump has uniform flow, smooth operation, low noise, higher pressure and volumetric efficiency than gear pump, and more complex structure than gear pump.
3 Piston pump: high volumetric efficiency, small leakage, can work under high pressure, mostly used in high-power hydraulic system; However, the structure is complex, the material and processing accuracy are required to be high, the price is expensive, and the cleanliness of the oil is required to be high.
The hydraulic pump is also known as the hydraulic motor, and the following video shows its working principle very clearly
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