The winch adopted valve-controlled proportional speed regulation hydraulic drive and PLC control to realize stepless speed change of the winch drum and coordinating control of the cable layer.
管线绞车采用阀控比例调速液压驱动、LC控制，实现了卷筒的无级变速和排缆器的协调控制。
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The paper introduces a speedy effective way how to solve winch location jump by modifying SD drive control and PLC program after main hoist of panyi coal mine hoists appears depth indication fault.
This paper presents the performance of new model monkey winch for mine. and its design calculation of the planetary differential variable-speed drive device.