电液比例控制系统负载敏感新方法  

New load-sensing method for electro-hydraulic proportional control system

作　　者：权龙[1] 林廷圻[1] 史维祥[1] 

机构地区：[1]西安交通大学

出　　处：《工程机械》1993年第5期21-24,39,共4页Construction Machinery and Equipment

摘　　要：本文介绍了通过控制比例溢流阀排油流量,控制执行机构运动速度和压力负载敏感的新方法。采用这种方法可使系统压力始终与负载所需的压力相等,从而构成了最节能的阀控调速系统。试验结果表明,与比例三通调速阀控制的敏感回路相比,该系统速度控制精度高,结构简单。A new load-sensing method to control the moving velocity and pressure of actuating mechanism by controlling the displacement of proportional overflow valve is introduced. By adopting this method, the system pressure is constantly equivalent to the pressure required by the load and a most energy saving valvecontrolled speed regulating system is created. Experimental results have shown that the system features precise speed control and simple design as compared to the sensing circuit controlled by T-type proportional speed regulation valve.

关 键 词：电液比例 控制系统 载荷 

分 类 号：TH137[机械工程—机械制造及自动化]