Lightweight single-axis shafting frame type fast reflecting mirror

The utility model relates to the field of optical precision mechanical structure design, in particular to a lightweight single-axis shafting frame type fast reflecting mirror which comprises a supporting frame, a rotating shaft, a scanning mirror, an angle data feedback assembly and a motor assembly. The supporting frame is a semi-surrounding type cylindrical hollow frame, the top and the bottom of the supporting frame are annular frame plates, and screw holes are formed in the frame plates. The angle data feedback assembly is fixed to an annular frame plate on the top of the supporting frame through bolts. The motor assembly is fixedly installed below a central annular frame plate at the bottom of the supporting frame. The rotating shaft penetrates through the angle data feedback assembly, the supporting frame and the motor assembly, the top and the bottom of the rotating shaft are fixed through nuts, the scanning mirror is installed on the rotating shaft and located in the supporting frame, and the scanning