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1引言QLG1500·40型滚筒式混匀取料机是武钢工业港混匀料场的关键设备。该机自1992年初投入运行以来，由于其电控系统的设计先天不足，调速性能差，致使取料机行走机构多次出现严重故障，不能满足生产需要，大大地影响了混匀料场效益的发挥。为此，我们针对原系统存在的问题进
1 Introduction QLG1500 · 40 roller mixing machine is the WKang industrial port mixed material yard key equipment. Since the machine was put into operation in early 1992, due to its inherent deficiencies in the design of its electronic control system, poor speed regulation, resulting in serious failure of the reclaimer walking mechanism many times, can not meet the production needs, greatly affecting the efficiency of the mixed material yard Play To this end, we address the existing system problems