Control structure of top drive device

The invention discloses a control structure of a top drive device. The control structure mainly solves the problems that a motor of an existing top drive device is short in service life, a remote control inner blowout preventer shutdown mechanism is large in occupied space, the span of a lifting rin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN JIAWEI, DONG SHENGZHENG, CHEN KELI, JIANG YI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS THERMAL INSULATION IN GENERAL WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!