矿山生产中,尤其是井下矿山,由于巷道的不断延伸,人员的通行时间越来越长。在掌子面工作中,急需材料或备品备件时,由于徒步领取往返时间长,往往使正常作业受到影响,导致生产辅助时间大大增加。轨道三轮自行车由24型轻便自行车加一 Mine production, especially mine, because of the continuous extension of the roadway, the staff of the passage of time longer and longer. In the work of the dough face, when materials or spare parts are urgently needed, due to the long round trip on foot, the normal operation is often affected, which leads to a great increase of production auxiliary time. Track three-wheeled bike by 24 light bike plus one