DRILL MAST LOCKING SYSTEM

-28 Abstract DRILL MAST LOCKING SYSTEM A method (600) includes receiving a user input to conduct a coarse pivot movement of a drill mast (606). A locking-pin withdraw signal is sent (608) to a locking pin actuator for a first period of time. Responsive to determining that a locking pin is engaged wi...

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Bibliographische Detailangaben
Hauptverfasser:	GLOVER, Rex A, MOBERG, Carl J
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	-28 Abstract DRILL MAST LOCKING SYSTEM A method (600) includes receiving a user input to conduct a coarse pivot movement of a drill mast (606). A locking-pin withdraw signal is sent (608) to a locking pin actuator for a first period of time. Responsive to determining that a locking pin is engaged with a locking hole after the first period of time (610), the drill mast is repositioned (612) from a current angle to an initial angle. A second locking-pin withdraw signal is sent to the locking pin actuator for a second period of time. Responsive to determining that the locking pin is engaged with the locking hole after the second period of time (614), the drill mast is repositioned (616) between a minimum drill mast angle and a maximum drill mast angle and sending a third locking-pin withdraw signal to the locking pin actuator for a third period of time.