DEVICE FOR MAKING HOLES IN THE GROUND

The device comprises a casing (1) on which is mounted an axially movable widener (3) consisting of separate sections (11) arranged in a ring-like manner along the periphery of the casing (1) and movable in radial directions. The casing (1) is provided on its external surface with a main stop (4) and...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	SERGEI IGOREVICH DEMENTIEV, PETR VLADIMIROVICH DOBROSELSKY, IGOR VLADIMIROVICH NIKOLAEV, ALEXANDR MATVEEVICH BOLNYKH, ALEXANDR IVANOVICH ROLDUGIN, GENNADY TROFIMOVICH BASENIK, BORIS GRIGORIEVICH GOLGSHTEIN, VLADIMIR ALEXANDROVICH BEZLEPKIN
Format:	Patent
Sprache:	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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The device comprises a casing (1) on which is mounted an axially movable widener (3) consisting of separate sections (11) arranged in a ring-like manner along the periphery of the casing (1) and movable in radial directions. The casing (1) is provided on its external surface with a main stop (4) and with an additional stop (5) mounted in the proximity of the main stop (4) and interacting by its external surface (13) with the internal surface of the sections (11) of the widener (3). The external surface (13) of the additional stop (5) is inclined in the direction of a part (2) of the casing (1) which influences the ground.