B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
B02C 2/04 (2006.01)
Patent
CA 2743931
A central shaft (18) for a gyratory crusher, which comprises a crushing head (22) on which a first crushing shell (30) is mounted; a frame (12) on which a second crushing shell (32) is mounted, which second crushing shell (32) defines, together with the first crushing shell (30), a crushing gap (34); and a driving device (24), which is arranged to rotate an eccentric (20) about said central shaft (18) and thereby to cause the crushing head (22) to execute a gyratory movement for crushing of material that is introduced in the crushing gap (34). The central shaft (18) has a cavity (44) in which are accommodated an anti-reverse (42) and a torque limiter (40), the anti-reverse (42) and the torque limiter (40) being adapted for connection to said crushing head (22) for restricting spinning.
L'invention concerne un arbre central (18) pour un broyeur giratoire, comprenant une tête de broyage (22) sur laquelle est montée une première coque de broyage (30) ; un cadre (12) sur lequel est montée une seconde coque de broyage (32), cette dernière définissant, conjointement avec la première coque de broyage (30), un espace de broyage (34) ; ainsi qu'un dispositif d'entraînement (24), agencé de manière à mettre un excentrique (20) en rotation autour d'un arbre central (18), ce qui amène la tête de broyage (22) à effectuer un mouvement giratoire afin de broyer le matériau introduit dans l'espace de broyage (34). L'arbre central (18) présente une cavité (44) dans laquelle sont logés un dispositif anti-retour (42) et un limiteur de couple (40), le dispositif anti-retour (42) et le limiteur de couple (40) étant appropriés pour être reliés à ladite tête de broyage (22) afin d'en limiter la rotation.
Eriksson Bengt-Arne
Saarnack Michael
Gowling Lafleur Henderson Llp
Sandvik Intellectual Property Ab
LandOfFree
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