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Q12Y-20×3200型剪板机属于全液压剪板机。由于液压系统设计存在缺陷,故在使用中经常发生故障。为此我们对其液压系统进行分析,并提出一个花钱少而又简便易行的改进方案供参考。一、原液压系统工作原理及存在问题Q12Y-20×3200剪板机的液压原理见图1。当油泵2启动后,因电磁换向阀4处于中位,溢流阀5的控制油通过阀4的中位通道回油池,使系统卸荷。当2DT带电,溢流阀5的
Q12Y-20 × 3200-type shears belonging to the hydraulic shears. Due to the hydraulic system design flaws, so in use often fails. To this end we analyze the hydraulic system and propose a solution that is inexpensive and easy to use for reference. First, the original hydraulic system working principle and existing problems Q12Y-20 × 3200 shears hydraulic principle shown in Figure 1. When the oil pump 2 starts, due to electromagnetic reversing valve 4 is in the middle, the relief valve 5 of the control oil through the valve 4 of the median channel return tank, the system unloading. When 2DT charged, the relief valve 5’s