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目前,在电机车运输的矿井中,是用安设在巷道内的色灯信号机作为信号装置,并且是采用轨道接触器或信号导线作为信号发送装置。这当中,特别是信号发送装置中就存在着一些问题,以轨道接触器来说:(1)价格高,投资费用大;(2)使用不方便,接点须要经常调节,并且还很难调节好;(3)与轨道接触的螺丝有被压断的现象,降低了信号的可靠性。致于信号导线,虽然价格比较低,投资费用比较小,但是:(1)只适用于没有瓦斯煤
At present, in the motor vehicle transport in the mine, is installed in the roadway lights signal machine as a signal device, and is the use of track contactors or signal wires as a signal sending device. Among them, there are some problems especially in the signal sending device, and for the rail contactor: (1) high price and high investment cost; (2) inconvenient to use, the contacts need to be adjusted frequently and it is difficult to adjust well ; (3) the screw in contact with the track is crushed, which reduces the reliability of the signal. To the signal wire, although the price is relatively low, the investment cost is relatively small, but: (1) only applies to no coal gas