Gear transmission gearbox of electric automobile

The utility model discloses a gear transmission gearbox of an electric automobile and relates to a transmission mechanism. The electric transmission shaft, the transmission shaft and the main shaft are installed in the shell, the clutch linkage gear is rotationally connected with one end of the main shaft, the clutch fixing gear is fixed to the main shaft, the clutch inner gear ring is clamped tothe clutch fixing gear and can be movably meshed with the clutch linkage gear, and the synchronizer fixing gear is fixed to the middle section of the main shaft. Wherein the first-gear gear and the second-gear gear are rotationally connected with the main shaft, the first-gear gear and the second-gear gear are respectively provided with clamping teeth, an inner gear ring of the synchronizer is clamped on the synchronizer fixing gear and can be movably meshed with the clamping teeth of the first-gear gear gear or the second-gear gear gear, the output shaft connecting piece is fixed at the otherend of the main shaft, an