Regarding the power tong for petroleum machinery drilling rods, one type is a base with a support cylinder running through the four corners, a universal wheel running through the inner side of the support cylinder running through the four corners on the lower surface, a drive motor embedded in the center of the upper end of the base, a rotary table running through the output end of the drive motor, and a half cylinder symmetrically running through the upper surface of the rotary table, and an adjustment column running symmetrically left and right between the lower parts of the half cylinder, The upper part of the half cylinder is symmetrically arranged with a second adjustment column equipped with an adjustment cylinder, and the central part of the first adjustment column is symmetrically arranged with an adjustment cylinder. The central part of the second adjustment column is symmetrically arranged with an arc-shaped fastening head, and the upper surface of the base is symmetrically arranged with an adjustment cylinder.

       Another type of petroleum machinery drill pipe power tong is characterized in that the bottom four corners of the base are equipped with rollers, and the front and rear sides of the base are equipped with installation seats. The installation seat is connected to an electric telescopic rod through installation pins, and the front and rear sides of the fixed clamping component on the right side of the base are connected to the right end of the electric telescopic rod through connection pins and connection seats. The top of the base is equipped with a hydraulic telescopic rod, The top of the hydraulic telescopic rod is equipped with a support seat, and the right side of the support platform on the outer wall of the support seat is equipped with a fixed platform. The inner cavity of the fixed platform is used for operation, and the fixed bearing is embedded on the outer wall of the operation sleeve. The fixed bearing is located in the inner cavity of the fixed platform, and the right end of the screw and the left end of the screw on the right side are installed at the bottom of the left and right sides of the operation sleeve at the top of the operation sleeve, The other end of the bearing is connected to a clamp.