【摘要】 提出一种采用简单液压元件和电气元件实现两个液压缸高精度同步的方法。以排量相等的两个液压泵分别驱动有效作用面积相等的两个液压缸,实现液压缸运动的初步同步;用两个磁性开关实时检测两液压缸的同步误差,由安装在液压泵压力管路上的电磁换向阀和固定阻尼孔对进入液压缸中的流量进行微调,实现两液压缸的高精度同步。该方法已应用于某加热炉的上料设备中,连续运行近两年时间,同步误差控制在0.4%以内。给出了详细的液压系统原理图以及流量微调方法。更多还原

【Abstract】 A method was presented for the two-cylinder system to achieve high-precision synchronization by using conventional hydraulic components. Using two pumps with same displacement to drive individually two cylinders with same effective area,preliminary synchronization was achieved. With two magnetic switches detecting the synchronization error in real time,and with solenoid valves and fixed orifices,installed respectively on the high pressure pipes of the two pumps,slightly regulating the flow rates running into the cylinders,high-precision synchronization was realized. The method has been applied in a furnace feeding equipment for two years with the synchronization error controlled in 0. 4%. A detailed hydraulic principle diagram,and the flow micro-adjustment method were provided.更多还原