The Axial piston pump with three distribution windows effectively solves the mismatch problem caused by the different flow rates in the two chambers of the pump-controlled single rod hydraulic cylinder.However,there are flow pulsation and pres-sure shock problems in the non-dead point transition zone of the axial piston pump with three distribution windows.In view of this problem,it is proposed to set up damping holes in the non-dead point transition zone and the upper dead point transition zone.The two damping holes are connected through the channels to balance the pressure of the non-dead point transition zone and the upper dead point transition zone.According to the flow distribution area function,the piston pump model is built in AMEsim soft-ware to simulate the influence of parameters such as the existence of damping holes and the size and location of damping holes on the flow and pressure of the piston pump,and to determine the appropriate flow distribution plate structure.The results show that the opening of the damping hole oil channel can reduce the pressure gradient in the transition zone,reduce the pressure shock and flow pulsation of the piston pump in the transition zone,reduce the energy consumption of leakage and oil compression,and im-prove the volumetric efficiency.
关键词
三配流窗口轴向柱塞泵/阻尼槽/配流盘/非死点过渡区/流量脉动/压力冲击
Key words
Axial Piston Pump with Three Distribution Windows/Damping Groove/Distribution Plate/Non-deadpoint Transition Zone/Flow Pulsation/Pressure Impact
维普
万方数据