Novel folding racking platform of telescopic derrick of petroleum drilling machine

The utility model relates to a novel folding racking platform of a telescopic derrick of a petroleum drilling machine, which comprises a fixed pulley assembly, a suspension rope, a racking platform, a turnover handrail, a guide pulley assembly, a traveling pulley assembly, a lower guide rail, an upp...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG SHUANFANG, WEI HONG, LIU HUI, LI HOULING, JING FANGGANG, HUANG XUPENG
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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