Drill falling prevention device of soil drilling machine

The utility model relates to the technical field of soil drilling machines, and discloses a soil drilling machine drill falling prevention device which comprises a main rotating shaft, one side of the main rotating shaft is movably connected with a drill bit body, one side of the drill bit body is f...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	YIN YEXIN, QIU LIWEI, JI ZHEN
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The utility model relates to the technical field of soil drilling machines, and discloses a soil drilling machine drill falling prevention device which comprises a main rotating shaft, one side of the main rotating shaft is movably connected with a drill bit body, one side of the drill bit body is fixedly connected with a second spring, and one side of the second spring is fixedly connected with a limiting insertion rod. A limiting lantern ring is movably connected to one side of the main rotating shaft, a threaded rod is movably connected to one side of the limiting lantern ring, a nut is movably connected to one side of the threaded rod, a nut is fixedly connected to one side of the main rotating shaft, and a device body is fixedly connected to one side of the limiting lantern ring. A first spring is fixedly connected to one side of the device body, and a damping block is fixedly connected to one side of the limiting lantern ring. According to the drill falling prevention device of the soil drilling machine