METHOD AND DEVICE FOR DRIVE CONTROL OF CRANE WINCH,申请号JP19950037018-传众专利搜索

METHOD AND DEVICE FOR DRIVE CONTROL OF CRANE WINCH

申请公布号：JPH08231190(A)

申请号：JP19950037018

申请日期：1995.02.24

申请公布日期：1996.09.10

申请人：

KOBE STEEL LTD

发明人：HAMAZAKI YOSHIHIRO;YONEZAWA TOMOSHI;FUKUMOTO KOJI

分类号：B66D1/50;B66D1/54;(IPC1-7):B66D1/50

主分类号：B66D1/50

摘要：PURPOSE: To prevent the slackness of rope completely with a simple structure at the time of lowering. CONSTITUTION: The tension T of rope 7 drawn out from a winch drum 4 driven by a hydraulic motor 8 is detected by a load cell 15 or the like and inputted in a tension difference computing means 13. The tension difference computing means 13 computes a tension differenceΔT between a detected tension To before driving lowering and a detected tension T during driving lowering. A control value computing means 14 computes a feedback correction amount based on the tension differenceΔT, and a driving control signal (u) is outputted to an electromagnetic proportional valve 9 so as to drive the winch drum 4 at a lowering speed where the feedback correction amount is subtracted from command speed inputted by the operation of an operating lever 10.