改进型采煤机滚筒调高记忆程控策略

Improved memory program control strategy of height adjustment of shearer roller

为了提高采煤机滚筒高度调整的精确性,给出了采煤机滚筒静态调高模型,分析了液压调高系统的响应时间与记忆程控策略的关系,提出了考虑液压系统响应时间的改进型记忆程控策略。该策略将滚筒高度变化简化为线性变化,可在一定程度上避免滚筒调高过程中出现截割顶板的现象,提高了截割的安全性,且具有算法简单、调高精度高等优点。

In order to improve accuracy of height adjustment of shearer roller,static height adjustment model of shearer roller was given,relationship between response time of hydraulic height adjustment system and memory program control strategy was analyzed,and improved memory program control strategy which considered response time of hydraulic system was proposed.The improved strategy simplifies roller height variation to linear variation,can avoid phenomenon of cutting roof during process of roller height adjustment.It improves cutting safety,and has advantages of simple algorithm and high adjustment precision.