Low-clearance rotary drilling rig of special elevator

The invention discloses a low-clearance rotary drilling rig of a special elevator and belongs to the technical field of rotary drilling rigs. The low-clearance rotary drilling rig is characterized inthat a mast is fixedly mounted on the right side of an upper car; a drilling rod is slidably connecte...

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Bibliographische Detailangaben
Hauptverfasser:	BIAN YONGQIANG, WENG YONGJIAN, MAO WEIPENG, LU CHANGCHUN, GUO JIHUA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEARINGS BLASTING CYLINDERS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LUBRICATING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PISTONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SEALINGS SHAFTS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL WEAPONS
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