一概况近几年来,电力与内燃机车牵引电机换向器的开焊已成为目前影响机车正常运行的主要故障之一,特别是在一些运输量繁重、机车工作条件较差的区段,换向器的开焊情况更为严重。由于开焊后修复困难,以致开焊现象继续扩大直至烧损电机后送大修,所以牵引电机换向器开焊是一个现场急需解决的大问题。 In recent years, electric and diesel locomotive traction motor commutator open welding has become the current normal operation of the locomotive to affect one of the major faults, especially in some heavy traffic, locomotive poor working conditions in the section, commutation The welding situation is more serious. Due to the difficulty of repairing after welding, the phenomenon of open welding continues to expand until the overheated motor burns out, so the welding of the commutator of the traction motor is a big problem that needs to be solved urgently at the scene.