摘要
采用功率键合图法建立了混凝土输送泵闭式泵送系统仿真模型,并在Matlab中进行了仿真。仿真结果表明:闭式泵送系统压力冲击并不是发生在油泵快速换向时刻,而是发生在压实混凝土后推进的时刻。因此,油泵换向是"柔和"的,采用"SN"阀控制可有效消除压力冲击。
By means of power linkage chart method, the model of closed loop deliver system of concrete pump was set up. Sim- ulation was＂ carried out in the Matlab. The results show that： the hydraulic shock in the closed loop do not occur when the swash plate commutates and it actually happens when the concrete; pushed forward after compression. The main piston pump commutation is soft. This shock can be eliminated effectively by means of SN control.
出处
《机床与液压》
北大核心
2011年第19期97-100,共4页
Machine Tool & Hydraulics
关键词
混凝土输送泵
闭式泵送系统
功率键合图
仿真
Concrete pump
Closed loop deliver system
Power linkage chart
Simulation
