High Pressure and Large Flow Hydraulic System Powered by Dual Pump and Servo Motor

摘要

In order to meet the demand of large hydraulic machines for high-pressure and large-flow power output, the high-pressure main pump and the low-pressure auxiliary pump controlled by the servo motor are introduced into the hydraulic power source. The large flow output is realized by the combination of the two pumps, and the high pressure output is realized by the switching of the merge valve block. The pressure of the hydraulic system is controlled by the torque of the servo motor, and the flow rate of the hydraulic system is controlled by the speed of the servo motor. From the working cycle of the hydraulic machine equipped with the system, the power system can meet the design requirements of the hydraulic system for pressure and flow.