Self cleaning shredding device having movable cleaning rings

Details Self cleaning shredding device having movable cleaning rings Self cleaning shredding device having movable cleaning rings

B - Operations, Transporting

02

C

B02C 18/16 (2006.01) B02C 18/14 (2006.01) B02C 18/18 (2006.01)

Patent

CA 2435991

A self clearing cutting assembly is provided, having an array of counter rotating cutters in which a plurality of cutters rotating in a first direction is mounted on a first shaft and a plurality of second cutters is mounted on a second shaft for rotating in an opposite direction. The array of cutters is provided with a plurality of clearing or cleaning rings located alternately with the cutters on each shaft. The cutting array is kept clear of debris or partially cut material by movement of the clearing or cutting rings against adjacent cutters. Movement of the clearing or cleaning rings is a combination of rotary motion and linear motion, in which the linear motion is imparted by the cutter located opposite the cleaning ring striking the cleaning rings so as to push the cleaning ring beyond the position of the widest part of the cutter to completely dislodge material from the cutter.

Ensemble de broyage autonettoyant muni d'un système de couteaux contrarotatifs dans lequel plusieurs premiers couteaux pivotant dans une première direction sont montés sur un premier arbre et plusieurs deuxièmes couteaux pivotant dans une deuxième direction sont montés sur un deuxième arbre pour pivoter dans une direction opposée. Le système de couteaux est muni de plusieurs anneaux de dégagement et de nettoyage, disposés de façon alternée avec les couteaux sur chaque arbre. Le système de coupe est dégagé de débris ou de matières partiellement coupées par le mouvement des anneaux de dégagement ou de coupe contre les couteaux adjacents. Le mouvement des anneaux de dégagement ou de nettoyage est une combinaison du mouvement rotatif et du mouvement linéaire, le mouvement linéaire étant communiqué par le couteau disposé face à l'anneau de nettoyage percutant les anneaux de nettoyage de manière à pousser l'anneau de nettoyage au-delà de la position de la partie la plus large du couteau de manière à enlever complètement la matière du couteau.

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