Oil drilling pipe boosting power tongs

Abstract

The invention relates to a power tong for oil drill rods, which includes a driving tong body and a base, wherein the driving tong body is rotationally connected to the base through a rotating disc, and an opening for clamping a drill pipe is arranged on the driving tong body. A clamping mechanism for clamping the drill pipe is provided on the inner wall of the opening; a push cylinder is also provided between the drive tong body and the base; a push groove is arranged inside the push rod, and the push groove includes a guide part, a pressing part and a push part, Wherein the bottom surface of the pressing part is inclined to the surface of the base, the pressing part is connected between the guiding part and the pushing part, and the height of the pushing part relative to the base is higher than the height of the ground of the guiding part; The end of the seat is slidingly connected with the end of the push rod, and a push cylinder is installed inside the cylinder fixed seat; a return cylinder is also rotatably connected on the base, and the cylinder rod of the return cylinder is rotatably connected to the drive clamp body.

Description

technical field [0001] The invention relates to a drilling rod driving device for oil drilling, in particular to an oil drilling rod power tong. Background technique [0002] During the drilling process of oil drilling, because of the initial drilling, the drill pipe needs to be driven by a large torque and pressure to grind and drill the formation; traditional power tongs generally drive the drill pipe through a gear mechanism , while pressing down and clamping the drill pipe through the main caliper; however, in some relatively hard geological conditions, the torque of the gear drive is insufficient, and it is necessary to use other driving forms to drive the drill pipe. Contents of the invention [0003] The technical problem to be solved by the present invention is: to overcome the relatively insufficient torque of the drill pipe under the gear drive mode in the case of relatively hard geological conditions, and to provide an afterburning power tong for oil drill pipe....

AI Technical Summary

Problems solved by technology

[0002] During the drilling process of oil drilling, because of the initial drilling, the drill pipe needs to be driven by a large torque and pressure to grind and drill the formation; traditional power tongs generally drive the drill pipe through a gear mechanism At the same time, the main caliper is used to press down and clamp the drill pipe; however, in some cases where the ground is relatively hard, the torque of the gear drive is insufficient, and other driving forms are required to drive the drill pipe

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