Hydraulic power tongs for screwing and unscrewing drill rod

• Main Authors: CAI ZHONGFEI, GUO HUIHUI
• Format: Patent
• Language: Chinese; English
• Published: 08.07.2022
• Subjects: 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

The utility model discloses a hydraulic power tong for screwing and unscrewing a drill rod, which comprises a hydraulic power tong mechanism, the hydraulic power tong mechanism comprises a hydraulic tong base, a driving main machine is arranged outside the top end of the hydraulic tong base, and connecting handles are arranged outside the driving main machine and the hydraulic tong base at intervals. A hanging bracket mechanism is installed outside the top end of the hydraulic clamp base, a hanging rod mechanism is connected outside the top end of the hanging bracket mechanism, a fixed clamping sleeve mechanism is connected outside the top end of the hanging rod mechanism, and auxiliary hanging bracket mechanisms are annularly installed outside the fixed clamping sleeve mechanism at intervals. According to the hydraulic power tongs for screwing and unscrewing the drill rod, multi-point limiting can be conveniently carried out on the hydraulic power tongs, so that the stable inner shape of the hydraulic power