Torque calibration scale applied to torque sensor

The utility model relates to the technical field of torque testing, in particular to a torque calibration scale applied to a torque sensor, which comprises a torque sensor, a supporting seat, a transition shaft supporting seat arranged on the supporting seat, and a transition shaft arranged on the transition shaft supporting seat, the balance scale lower arm and the balance scale upper arm are connected to the transition shaft, the torque sensor is installed on the transition shaft, two weight pull rods are correspondingly arranged at the bottoms of the left end and the right end of the balance scale upper arm, and two weight trays are arranged at the bottom ends of the two weight pull rods. A standard weight and a metering weight are arranged on the two weight trays, two adjusting assemblies used for micro-adjustment are symmetrically arranged above the left side and the right side of the upper arm of the balance scale, and two gradienters are arranged above the left end and the right end of the upper arm of