Pneumatic control protection device for drill rod power tongs

Pneumatic control protection device for drill rod power tongs

The utility model relates to a protection device for petroleum drill rod power tongs, in particular to a pneumatic control protection device for drill rod power tongs. The technical scheme is that a pneumatic control system is added in front of a two-position three-way air valve of the drill rod pow...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: LI HUANJIN, YU BAIQIU, ZHONG JINGCHENG, WANG YUNBIN, TIAN SUWU, GENG QINGWEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MECHANICAL ENGINEERING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:The utility model relates to a protection device for petroleum drill rod power tongs, in particular to a pneumatic control protection device for drill rod power tongs. The technical scheme is that a pneumatic control system is added in front of a two-position three-way air valve of the drill rod power tongs, the pneumatic control system is composed of a mechanical valve, a pneumatic control valve and a main air pipeline. An air source is communicated through the main air pipeline, an air control valve is arranged on the main air pipeline, and the other end of the air control valve is communicated with the mechanical valve. The pneumatic control protection device for drill rod power tongs has the advantages that by improving an air path system, the problem that the drill rod power tongs are easy to cause injuries in the process of misoperation is avoided, and potential hazards of production accident are reduced.