65 t无人驾驶电机车气电混合制动模式研究

Study on Air-electric Hybrid Braking Mode of 65 t Driverless Electric Locomotive

针对电机车传统纯机械制动方式对制动设备损伤大、故障率高的问题,以国内井下水平运输最大吨位65t电机车为研究对象,提出了电机车气电混合制动模式。通过对防打滑控制的研究,实现了由电制动和空气制动协调匹配输出制动功能,并在65t无人驾驶电机车上进行试验。试验结果表明,在气电混合制动下,电机车机械制动相关结构和设备受力强度得到降低,电机车机械闸瓦、制动盘的维修成本分别降低了80%、50%,制动机械传动机维护时间减少了80%,既提升了工作效率,又解决了大吨位无人驾驶电机车的制动控制难题,有效降低了设备的故障率,实现了安全平稳制动的目标。

In view of the situation that the traditional pure mechanical braking mode causes great damage to the braking equipment and high failure rate,taking the 65 t electric locomotive with the largest tonnage of underground horizontal transportation in China as the research object,the air-electric hybrid braking mode of electric locomotive was proposed.Through the research on anti-slip control,the coordinated output braking function of electric braking and air braking was realized,which was tested on the 65 t driverless electric locomotive.The test results showed that,under the air-electric hybrid braking,the strength of mechanical braking structures and equipment of the locomotive was reduced,and the maintenance costs of the locomotive mechanical braking shoes and braking discs were reduced by 80%and 50%,respectively.The maintenance time of the mechanical transmission was reduced by 80%,which not only improved the work efficiency,but also solved the problem of braking control for large-tonnage unmanned electric locomotive.This also effectively reduced the failure rate of the equipment and achieved the goal of safe and stable braking.