煤矿主井在提升作业中,需要对提升次数进行计数,以便掌握每班的出煤情况。大同矿务局,各矿对主井提升次数,普遍采用原始计数法,即提升一次,用一个铁钉插在一块小木板上的孔中。这样既分散绞车司机的注意力又容易出错。笔者设计了一种自动计数器,其方框图如图1。 In the upgrading operation of the main shaft of the coal mine, the number of ascents needs to be counted in order to grasp the coal-out situation in each shift. Datong Bureau of Mines, the mine on the main shaft to enhance the number of times, generally using the original count method, that is, once raised, with a nails inserted in a small wooden hole. This not only distracts the winch driver’s attention but also makes mistakes. I designed an automatic counter, the block diagram shown in Figure 1.