卷取机夹送辊液压伺服单、双腔控制回路的分析与比较

卷取机前夹送辊是热轧带钢生产线上的一个重要设备,该设备的性能直接影响着卷材的卷取质量。通过分析卷取机前夹送辊工作原理及液压伺服单、双腔两种控制回路,建立单、双腔液压伺服控制回路仿真模型,在相同条件下进行仿真分析,通过对位置和压力闭环仿真曲线和实际生产曲线的对比分析,得出单腔控制回路的稳定性优于双腔控制回路、而双腔控制回路的快速性优于单腔控制回路的结论。

Analysis and Comparison for Single chamber and Dual chamber Servo Hydraulic Control Loops of Coiler Pinch Roll

The pinch roll before coiler is the important equipment in hot strip mill.Its performance directly affects the quality of coil.The principles of the pinch roller and the single-chamber and dual-chamber servo hydraulic control loops were analyzed.The simu-lation models of the single-chamber and dual-chamber servo hydraulic control loops were established.Under the same conditions of sim-ulation analysis, by comparing the position and pressure closed-loop simulation curves with the actual production curves, the conclusion is that the stability of the single-chamber control loop is better than that of the dual-chamber control loop, but the rapid response of the dual-chamber control loop is better than that of the single-chamber control loop.