Gear hobbing machine workpiece shaft rotary table and gear hobbing machine

The gear hobbing machine workpiece shaft rotary table and the gear hobbing machine are characterized in that the gear hobbing machine workpiece shaft rotary table comprises a rotary main shaft used for installing and driving a workpiece. And the first bearing is arranged on the first shaft section of the rotating main shaft. And the second bearing is arranged on the second shaft section of the rotating main shaft. A preset span is arranged between the first shaft section and the second shaft section, when the rotating main shaft is subjected to large overturning force, the first bearing bears main acting force, the second bearing plays a role in assisting in sharing stress, and the overturning resistance of the rotating main shaft is improved in an auxiliary mode through the lever principle. The overturning rigidity of the driving rotary table in the high-speed rotating process can be effectively improved, and the situation that the reading of the encoder is affected due to the fact that the tail end of the r