In view of the character of drum lifting frame, invariable value and switch control hydraulic transmission system, this paper analyzes reappearing controlling character of memory program controlling-predicted control results.

• 摘要针对采煤机滚筒调高机构的特点，即定量、开关式控制液压系统，分析了记忆程控－预知控制结果的再现控制的特征。