目前,在船闸运行控制上愈来愈多地采用电气及程序控制。但由于闸阀门是较大的运转件,冲击力大,因而,常使现场的检测元件行程限位开关因冲撞挤压损坏而失灵,造成超行程故障。稍不注意就会拉断钢丝绳、烧坏电机、损坏启闭机械。因此,许多人提出了超行程保护的问题。我们对这个问题做了肤浅的探讨,现提出供有关人员参考 At present, more and more electrical and process control are used in the control of ship lock. However, due to the gate valve is a larger running parts, the impact of large, and thus often make the scene of the test element stroke limit switch crash due to damage and failure, resulting in overtravel failure. Slightly do not pay attention will pull off the rope, burn the motor, damage to the opening and closing machinery. Therefore, many people put forward the issue of over-travel protection. We have conducted a superficial discussion on this issue and are now making it available to the relevant personnel for reference