Oil field gathering and transportation pipeline descaling device

The utility model discloses a descaling device for a gathering and transportation pipeline of an oil field. Machine body, wherein the machine body is cylindrical; a first cavity is formed in the machine body; a fixed plate is welded on the inner wall of the machine body; a square groove is formed in the fixed plate; a positioning device is connected into the square groove in the fixed plate; a motor is rotationally connected outside the machine body; a through hole is formed in the machine body; a screw rod is rotatably connected into the through hole, a fixing frame is welded to the motor, ahandrail is welded to the end, away from the motor, of the fixing frame, a cross is fixedly connected to an output shaft of the motor, a sliding groove is formed in the side, away from the output shaft of the motor, of the machine body, the sliding groove communicates with the first cavity, and a cutter rotating frame is arranged outside the machine body. The working radius of the blade is adjusted by changing the turning