Torque measuring device calibration system based on air pressure loading

A torque measuring device calibration system based on air pressure loading comprises a torque measuring device and further comprises a rotating air cylinder and a torque sensor. The two ends of the torque sensor are rotatably mounted on the second mounting seats respectively; the torque measuring device is mounted on the first mounting seat; the first mounting seat and the second mounting seat are fixedly arranged on the experiment platform; one end of the torque sensor is connected with a rotating rod of the rotating cylinder, and the other end is connected with the torque measuring device through a connector; the rotating cylinder is connected with an air compressor through a pneumatic pipeline. The pneumatic loading mode is adopted, operation is easy, and safety is high; the torque measuring device is connected with the torque sensor through the connector, the current torque value of the torque sensor and the strain value of the torque measuring device can be directly read, the relation between the torque