Telescopic cutting units of entry driving machine

The utility model provides a vitals, concretely relates to telescopic cutting units of entry driving machine that telescopic cutting units of entry driving machine relates to the exploitation of coal mine tunnel and tunnel and uses the entry driving machine. The utility model provides a frequently ging forward, backing a car of complete machine can be reduced, the damage telescopic cutting units of entry driving machine to the bottom plate is reduced. The utility model discloses a with the continuous speed reducer of cut motor, its characterized in that: the speed reducer links to each other with the cutterhead through flexible arm, is provided with flexible hydro-cylinder group between speed reducer surface and the flexible arm surface.