CAJ | 학술논문

为解决传统液压平衡阀存在的控制压力偏高,调速困难和功率损失严重等问题,对新型负载保持阀工作原理进行分析,利用AMESim软件建立了该阀的仿真模型,并对该阀在不同控制条件下的控制特性进行了仿真研究,通过特性曲线分析得出新型负载保持阀所具有的比例控制下降速度特性,可以解决传统平衡阀控制压力偏高和调速困难的问题;压力补偿功能可以防止系统在负载逐渐增大的工况（如变幅下降）下产生超速现象;基于流量再生功能的自重下降特性可以降低系统功耗,并为其他执行元件提供更多流量。
위해결전통액압평형벌존재적공제압력편고,조속곤난화공솔손실엄중등문제,대신형부재보지벌공작원리진행분석,이용AMESim연건건립료해벌적방진모형,병대해벌재불동공제조건하적공제특성진행료방진연구,통과특성곡선분석득출신형부재보지벌소구유적비례공제하강속도특성,가이해결전통평형벌공제압력편고화조속곤난적문제;압력보상공능가이방지계통재부재축점증대적공황（여변폭하강）하산생초속현상;기우류량재생공능적자중하강특성가이강저계통공모,병위기타집행원건제공경다류량。
Aiming at the problems existed in traditional hydraulic counterbalance valve such as the high pilot pres- sure, the large power loss and difficult in speed control,the working principles of the new load control and holding valve are introduced. The system simulation model is established by using AMESim software and the control char- acteristics have been studied by simulation under different conditions. The analytical result indicates that the new load control and holding valve has better control behavior than traditional hydraulic counterbalance valve. The low- ering speed of load is controlled by proportional pressure reducing valve. The pressure compensation function can gradually improve the stability of the system in working conditions with increasing load. The lowering function of the gravity force can lessen the energy consumption tremendously.