Hydraulic Variable Displacement Piston Pump

Hydraulic variable displacement piston pump is a hydraulic component that provides pressurized liquid for hydraulic transmission. It is a kind of pump. Plunger pump is widely used in high pressure, large flow, high power system and need to adjust the flow of occasions, such as the machine, broaching machine, hydraulic press, construction machinery, etc. The function of the hydraulic pump is to convert the mechanical energy of the power machine (such as the motor and the internal combustion engine) into the pressure energy of the liquid.The output flow can be adjusted according to the needs of the variable pump, the flow can not be adjusted called quantitative pump.

Elephant Fluid Power provides less than 80 Db hydraulic plunger pump parts with variable displacement for coal mining. It is worth mentioning that roller support is arranged between the crankshaft and the connecting rod, and the mechanical efficiency is high. And there are five piston structure with eccentric shaft and low excitation frequency to achieve low noise.In addition to the starting torque is large, low speed stability is good; Plane compensation type oil distributor, good reliability, no leakage; Piston and plunger sleeve are sealed by sealing ring, high volumetric efficiency; High power quality ratio, small volume and weight. Attention should be paid to the connection of the hydraulic pump spare parts: the hydraulic pump and prime mover output shaft should be connected with elastic coupling,it is forbidden to install a pulley or gear on the hydraulic pump shaft to drive the hydraulic pump,if you must use pulley or gear and pump connected,should be added a pair of support to install the pulley or gear,the bearing and pump shaft coaxiality error should not be greater than 1 p0.05 mm.）The suction pipe should be as short as possible,straight,large and thick.The suction pipe should generally be set with a coarse filter whose nominal flow is not less than 2 times the pump flow(filtration accuracy is generally 80~180 um).The discharge pipe of the hydraulic pump should be directly connected to the oil tank,and the back pressure of the oil return should be no more than0.05mpa.The suction pipe and return pipe of the oil pump shall be below 200 mm at the lowest oil surface of the oil tank. Special attention is not allowed to install oil filter in the suction pipe of the plunger pump,the diameter of the stop valve on the suction pipe should be larger than the diameter of the oil suction pipe.Hydraulic pump can be installed with support or flange, pump and prime mover should use a common foundation support, flange and foundation should have enough rigidity. Special attention: flow greater than (or equal to)160L/min of the plunger pump, should not be installed on the tank.The self-priming height of the hydraulic pump is not more than 500mm(or the imported vacuum degree is not more than 0.03mpa).

Finally, if you are engaged in hydraulic-related work, look forward to cooperating with you,because we are looking for good long business partner and friendship. Elephant Fluid Power insists on good products, good service, and has been providing customers with better, more comprehensive hydraulic products, and constantly.If you are interested in our products, please contact me, we will provide the best price support and quality service.I believe we will establish a good and long-term cooperation.

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