上海创力MG400/930-WD型采煤机反牵引改良设计

Reverse Traction Improved Design on Shanghai Chuangli MG400/930-WD Coal Mining Machine

针对上海创力MG400/930-WD型采煤机牵引严重过载的保护动作设置不合理,提出了牵引过载自动反牵引设计,包括电气改造原理、电气设计两部分。该设计没有用到复杂的配件,只是对PLC程序的略微改动,推广性好。

According to unreasonable protection action setting of traction serious overload on Shanghai Chuangli MG400/930-WD coal mining machine, the paper proposes reverse traction design with automatical speed since traction overload, the design includes electric reformation principle and electric design. The design does not use complex parts, only changes PLC program slightly and is used widely.