Impact member for comminuter

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 13/02 (2006.01) B02C 13/28 (2006.01) B02C 18/14 (2006.01)

Patent

CA 2339816

The invention provides an impact member (24) for assembly with a rotor (14) arranged in a comminuter (10) used for the size reduction of feed material. The impact member (24), disposed radially about the rotor (14), comprises a carrier (26) and a replaceable impact plate (28) both configured for complementary registration so as to be cantilevered from the carrier (26) and to provide an essentially locking arrangement. The carrier (26) has a forwardly disposed open recess (34) with first (36) and second facings (38) intersecting in an axial direction relative to the horizontal axis of the rotor (14), and defining an acute angle relative to the radial plane of the rotor (14). The first facing (36) is oriented in the general direction of rotation of the rotor (14) and terminates with a longitudinally extending marginal edge disposed axially relative to the horizontal axis of the rotor (14). The replaceable impact plate (28) is configured as a substantially non-right angled parallelogram as viewed in transverse profile, and has intersecting sides for complementary registration with the first (36) and second facings (38) of the recess (34).

La présente invention concerne un percuteur (24) se montant sur un rotor (14) équipant un dilacérateur (10) utilisé pour réduire le calibre du matériau introduit. Le percuteur (24), qui est disposé radialement autour du rotor (14), se compose d'un support (26) ainsi que d'une platine-enclume amovible (28) configurés pour présenter une imbrication par complémentarité de façon à partir en chanfrein du support (26) tout en constituant entre eux un agencement sensiblement bloqué. Le support (26) présente un évidement (34) ouvrant vers l'avant et dont une première (36) et une seconde facette (38) se coupent selon une génératrice axiale par rapport à l'axe horizontal du rotor (14) et définissent un angle aigu par rapport au plan radial du rotor (14). La première facette (36), qui est orientée dans le sens général de rotation du rotor (14) se termine par un bord marginal longitudinal se présentant axialement par rapport à l'axe horizontal du rotor (14). La platine-enclume amovible (28), qui se présente sous forme d'un parallélogramme à angles sensiblement non droits quand on l'observe de profil, montre des côtés qui se coupent entre eux en vue d'une imbrication par complémentarité avec la première (36) et la seconde (38) des facettes de l'évidement (34).

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