Control method and system for fixed-point automatic operation of rotary drilling rig

The invention provides a control method and system for fixed-point automatic operation of a rotary drilling rig, and the method comprises the steps: determining the start and end of each operation section under automatic operation according to signals obtained by a positioning transmitting device, a...

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Bibliographische Detailangaben
Hauptverfasser: SUN YU, ZHANG MENGCI, WU ZEWEI, WANG JIXIN, LI XUEJIAO, WANG HAIJIN, WU WANTING, ZHANG LI, HU YADONG, FAN QIANGSHENG, ZHANG JIGUANG, MA XU
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention provides a control method and system for fixed-point automatic operation of a rotary drilling rig, and the method comprises the steps: determining the start and end of each operation section under automatic operation according to signals obtained by a positioning transmitting device, a positioning receiving device, a drilling bucket weight sensing device and a bucket door opening and closing sensing device; when the distance between the position of the positioning receiving device and the drilling point is smaller than a set value, the drilling bucket stops rotating, so that the bucket door pin shaft and the rotating direction of the turntable are on the same side, and the drilling bucket closes the bucket door; according to the obtained actual duration and actual current value of each operation section under the manual operation, obtaining a predicted current value of each operation section under the automatic operation; controlling the electric proportional valve group to reproduce each operat