Large range torque sensor of quick assembly structure

The utility model relates to a large range torque sensor of a quick assembly structure, which can be applied in hydraulic extension tongs and hydraulic tubing tongs for well drilling, oil production or well repairing. The large range torque sensor comprises torque arms, quick assembly pressure caps with threads, a main body of the torque sensor and a signal interface of the torque sensor, wherein the main body of the torque sensor adopts the cylindrical torque sensor, the signal interface of the torque sensor is fixedly arranged in the middle of the outer wall of the main body of the torque sensor, the torque arms are respectively inserted in central holes at two ends of the main body of the torque sensor, the quick assembly pressure caps with the threads are fixedly arranged on external threads at two ends of the main body of the torque sensor, and the quick assembly pressure caps with the threads fix the torque arms at two ends of the main body of the torque sensor. The large range torque sensor has the adv