Common types of hydraulic pumps.
According to whether the flow can be adjusted to be divided into variable pump and quantitative pump. The output flow can be adjusted according to the need to adjust the variable pump.
According to the hydraulic system, the pump structure is divided into 3 kinds: gear pump, vane pump and piston pump.
Gear pumps. Small size, relatively simple structure, the requirements of the cleanliness of the oil is not strict. The price is cheaper, but the pump shaft is not balanced.
Vane pump. It is divided into two - acting vane pump and single acting vane pump. The pump is uniform, stable, low noise, high efficiency of pressure and volume ratio.
Piston pump. The volume efficiency is high, the leakage is small. It can work under high pressure. It is mostly used for large power hydraulic system, but the structure is complex, and the precision of the material and processing is high.