Automatic discharging driving device for large-sized animal feeding trough used for livestock breeding

The invention discloses an automatic discharging driving device for a large-sized animal feeding trough used for livestock breeding. The automatic discharging driving device comprises a feed storage driving mechanism, wherein three feeding mechanisms are continuously mounted at the right side of the feed storage driving mechanism through flanges; a supporting frame is mounted at the right side ofeach feeding mechanism; a motor is mounted at the left end of a first feeding cylinder; the driving shaft of the motor penetrates through the inner wall of the first feeding cylinder and extends intothe first feeding cylinder; a first rotating shaft is welded at the right end of the driving shaft of the motor; a first connecting groove is arranged at the right end of the first rotating shaft; a fourth rotating shaft is arranged in a second feeding cylinder; two ends of the fourth rotating shaft are fixedly connected with the inner walls of the interior of the second feeding cylinder through bearing frames; and a secon