CAJ | 학술논문

针对变量泵液压系统在加速等工况产生的高压力峰值使得高压溢流阀频繁开启导致系统功率损失而产生热量，提出采用一种具有压力调节功能的压力切断阀，并对其进行理论分析。以重庆轻轨3号线牵引车液压系统为研究对象，通过AMESim的建模和仿真，仿真结果表明该阀动静态特性较好，能很好调节变量泵排量，避免高压峰值，有效减少因溢流阀动作而产生的能量损失，具有广阔的发展前景。
침대변량빙액압계통재가속등공황산생적고압력봉치사득고압일류벌빈번개계도치계통공솔손실이산생열량，제출채용일충구유압력조절공능적압력절단벌，병대기진행이론분석。이중경경궤3호선견인차액압계통위연구대상，통과AMESim적건모화방진，방진결과표명해벌동정태특성교호，능흔호조절변량빙배량，피면고압봉치，유효감소인일류벌동작이산생적능량손실，구유엄활적발전전경。
When the variable pump hydraulic system was in the working condition of acceleration or deceleration,high-pressure peak value would be produced to make the high-pressure relief valve run frequently,which led the system power loss and heat genera-tion,by aiming of this,using a pressure cut-off valve with pressure regulatory function was present,and theoretical analysis of it was made. By taking the hydraulic system of tractor for Chongqing rail transit Line 3 as a research object,modeling and simulation were conducted in AMESim. The simulation results show that the valve has good dynamic and static characteristics,which is used to adjust the variable pump displacement well and avoid the high-pressure peak value,reducing the energy loss caused by the overflow action of high-pressure relief valve effectively. So it has broad prospects for development.