Stand discharging mechanical arm tong head

• Main Authors: GAO MING, XING GUANGLIANG, HE JINQIAN, BAI BINGJIAN, HAN YAZHOU
• Format: Patent
• Language: English
• Published: 20.05.2015
• 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 stand discharging mechanical arm tong head. The stand discharging mechanical arm tong head comprises supporting tongs and suspending tongs. The supporting tongs structurally comprise a pair of bolts which are arranged at the front ends of two cantilevers of a rack body, each bolt is fixedly connected with a rotating shaft in a sleeving mode, and the rear end of each rotating shaft is hinged to the end of a piston rod of a supporting hydraulic cylinder through a crank throw. The suspending tongs structurally comprise a pair of suspending tong bodies which are arranged at the surrounding position of the two cantilevers of the rack body, a limiting pin shaft is arranged on the outer side of the middle of each suspending tong body, and a tong tooth base is arranged on the inner sides of the middles of the two suspending tongs together. The rear ends of the suspending tong bodies are hinged to a connecting base, the connecting base is hinged to a rod cavity lug ring of a suspending hydraulic cylinder, and a cylinder body of the suspending hydraulic cylinder is fixedly connected with the rack body. According to the stand discharging mechanical arm tong head, the function of a supporting stand and the function of a suspending stand of the tong head are integrated, and thus stand discharging operation can better meet the practical needs of well drilling.