Mechanic extractor of dry grains stored in silage bag with discharge accelerator

A mechanic extractor of dry grains stored in silage bag with discharge accelerator, of the type having a transversal roll which rolls the bag up as grains stored therein are extracted, to be discharged in a hopper truck or equivalent, which advances adjacent to the extracting machine, for which an extracting head is used which is placed in the interior of the bag, which having a lifting roller centrally arranged which corresponds to the bottom thereof, combined with a pair of transversal rollers (3) and (4) extending to both sides acting as roller resources that, during the advance, orient the grains to the central line to be taken by said lifting roller (5) which elevates and discharges them, characterized in that the command given by the tractor, is transmitted to an entrance axis (8) disposed below at the back sector of the machine, which is disposed associated to an upward transmission chain (9), which takes the movement to an horizontal main axis of transmission (10) which extends, elevated, to the external face of the body of the lifting roller, where it is associated with a downward transmission chain (11) which extends to a transmission box (12) which is centrally placed, at the lower end, supported on the bottom of the bag, in correspondence to the front face of the machine, which has their exit axis (13), (14) and (15), oriented to different directional senses, all of them defined at a single vertical plane, which are coupled, respectively with the axis of the transversal endless rollers (3) and (4) and the lifting roller (5).