论文部分内容阅读
我国于1987年从美国JOY公司引进了两台3LS型电牵引采煤机。本文是作者在JOY公司设备中检期间,根据电控部分的设计者介绍情况时的记录整理而成。文中着重介绍了采煤机的液压输出和可控硅触发系统,简称HOST控制系统,是采煤机的心脏。该控制系统具有六方面功能:可控硅传动控制,液压输出控制,遥控解码,故障诊断,过载保护,紧急停车。
China in 1987 from the United States JOY company introduced two 3LS electric traction shearer. This article is the author in the JOY company equipment inspection period, based on the electronic control part of the designer introduced the situation when the records compiled. This paper focuses on the shearer hydraulic output and SCR trigger system, referred to as HOST control system, is the heart of Shearer. The control system has six functions: SCR drive control, hydraulic output control, remote control decoding, fault diagnosis, overload protection, emergency stop.