北票矿务局三宝矿地面运输系统如图1所示,采用架线电机车牵引一吨 U 型矿车运输。电机车将重矿车牵引到 A 点后,(留下重矿车电机车进入辅轨),转用钢丝绳索牵引,将重矿车沿直道由东向西按箭头方向,经90°弯道牵引至 B 点,电机车按辅道返回,到达 B 点后的重车再用25kW 调度小绞车 J_1牵引列车中部,使重矿车前部再经90°弯道进 Beipiao Mining Bureau Sambo ground transportation system shown in Figure 1, the use of overhead electric locomotive traction a ton of U-shaped tub transport. After the electric locomotive towed the heavy truck to point A, (leaving the heavy truck locomotive into the auxiliary track) and switched to the wire ropes towing, the heavy-duty truck was driven along the straight road from east to west in the direction of the arrow and through the 90 ° curve Traction to point B, the electric car returned by the second lane, after reaching the heavy car after point B and then use 25kW small winch scheduling J_ traction central train so heavy car front by 90 ° turn