Motor torque testing device

The utility model provides a motor torque testing device. The device mainly comprises a friction wheel, two semi-embracing friction discs, a pressure adjusting assembly and a supporting frame. By rotating the pressure adjusting rod, pressure is elastically applied between the friction disc and the friction wheel through the spring, and torques under different loads are simulated. Numerical values are measured and displayed through a rotating speed sensor, a torque sensor and a display device. The testing device is connected with a to-be-tested motor through an elastic coupling. Due to the fact that a semi-encircling structure is adopted between the friction wheel and the friction discs, and the two friction discs are fixed on the two opposite edges of the quadrilateral structure, the mobility of the quadrilateral structure is utilized, enough vibration space is provided for the friction wheel during rotation, vibration generated during testing is adapted and weakened, the measuring precision is improved, and