Mechanical continuously variable transmission control structure

The utility model discloses a control structure of a mechanical continuously variable transmission, which belongs to the technical field of continuously variable transmissions of harvesters and comprises the mechanical continuously variable transmission, a square hole input swing arm and a fastening bolt. The square hole input swing arm is fixed to the mechanical stepless transmission through a connecting structure and a fastening bolt, the mechanical stepless transmission comprises a shaft head, a rotating shaft, an optical shaft, a square shaft and a threaded shaft, the shaft head is connected to the lower portion of the rotating shaft and can rotate around the axis, the optical shaft is arranged above the rotating shaft, the square shaft is arranged above the optical shaft, and the threaded shaft is connected with the square hole input swing arm. The threaded shaft is arranged above the square shaft, a square hole is formed in the left side, a notch is reserved in the right side, unthreaded holes are forme