Drilling device and method suitable for medium-soft stratum shallow hole coring

The invention relates to a drilling device and method suitable for medium-soft stratum shallow hole coring, the device at least comprises a first static pressure drill rod, at least three pneumatic cylinders and at least two supporting assemblies, the at least three pneumatic cylinders are arranged...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG YAWEI, ZHENG MINGMING, ZENG GUO'AO, WU ZURUI, YAN SHICHUN, LIU XILONG, ZHU JUNLIN, ZHU CHENGTAO
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 invention relates to a drilling device and method suitable for medium-soft stratum shallow hole coring, the device at least comprises a first static pressure drill rod, at least three pneumatic cylinders and at least two supporting assemblies, the at least three pneumatic cylinders are arranged on one side face of a baffle, and the first static pressure drill rod is arranged in the mode of penetrating through a pressure bearing assembly and the baffle at the same time; at least two supporting assemblies are arranged on the face, provided with the pneumatic cylinder, of the pressure bearing assembly, the static pressure drill rod and the baffle are arranged in a limiting mode, and under the condition that the pneumatic cylinder is arranged between the pressure bearing assembly and the baffle, the pneumatic cylinder acts in the mode of applying pressure to the static pressure drill rod so as to lift the drilling tool; under the condition that the pneumatic cylinder is arranged between the stratum and the ba