Rotor test platform having torsional moment applying function

The invention discloses a rotor test platform having a torsional moment applying function. The rotor test platform having the torsional moment applying function comprises a test platform base, a motorbase and a bearing base; the motor base and the bearing base are positioned on the test platform base; a motor is arranged on the motor base; the bearing base is provided with a rotating shaft, whichat least comprises a turntable; the output end of the motor is connected with the rotating shaft through a coupler; a torsional moment applying device is arranged on the periphery of each turntable;each torsional moment applying device comprises a guide rail installation frame, upper and lower guide rails, two sliding contact blocks, electromagnets, a power amplifier and a signal generator; theelectromagnets are arranged in a pairing manner, and wound with a coil; and the torsional moment applying device is used for generating adjustable torsional moment excitation acting on the corresponding turntable. The signal gen