Top drive transmission device of drilling machine

The utility model discloses a drilling machine top drive transmission device which comprises derricks and a sliding rail assembly arranged between the derricks, the sliding rail assembly comprises a connecting beam arranged between the derricks, the connecting beam is provided with a transmission le...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG XIAOFEI, GUO RUIMEI, ZHU SHITONG, JIA CHUNYI, JIA YAPING, JIA WENJIE
Format:	Patent
Sprache:	chi ; 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:	The utility model discloses a drilling machine top drive transmission device which comprises derricks and a sliding rail assembly arranged between the derricks, the sliding rail assembly comprises a connecting beam arranged between the derricks, the connecting beam is provided with a transmission lead screw parallel to the derricks, the transmission lead screw is provided with a sliding sleeve linearly sliding along the transmission lead screw, and the sliding sleeve is connected with the derricks. A sliding rack is arranged on the sliding sleeve, and a top drive body is mounted on the sliding rack through a mounting mechanism; a limiting mechanism for limiting the top drive body is arranged between the transmission lead screw and the derrick, the limiting mechanism comprises a limiting sliding groove formed in the derrick, and a limiting pulley sliding along the limiting sliding groove is arranged on the sliding rack; the driving motor works to enable the sliding sleeve on the transmission lead screw to slid