Automatic loading mechanism of gear testing machine

The utility model discloses an automatic loading mechanism of a gear testing machine, which comprises a base, a testing gear box and a driving gear box, the top of the base is provided with the testing gear box and the driving gear box which are symmetrically arranged, the inside of the testing gear box is provided with a pair of testing gears which are in meshed connection, and the driving gear box is provided with a driving gear. A pair of meshing gears in meshing connection is arranged in the driving gear box, a first coupling shaft and a second coupling shaft are connected between the test gear and the meshing gears, a torque sensor is installed on the periphery of the first coupling shaft, and a clutch disc a and a clutch disc b are installed on the periphery of the second coupling shaft. A connecting screw is arranged between the clutch disc a and the clutch disc b, and a power driving device is installed on the top of the base. The method of externally hanging a lever is not needed, dismounting and car