Rotary drilling rig and counterweight device thereof

The invention discloses a rotary drilling rig and a counterweight device thereof. The counterweight device comprises at least two counterweight units, and the adjacent counterweight units are detachably connected. In the working process of the rotary drilling rig, the counterweight device matched wi...

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Bibliographische Detailangaben
Hauptverfasser:	LI JINLONG, NIU HUIFENG, LIU GUOJUAN, LI YUANHU, ZHANG YANMING, ZHANG HAO, WU BIN, GUO YAN, HUANG ZHIWEN, CHEN XI, WANG YAN, LIANG SHOUJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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