Anti-spin system for the head of a cone crusher

Details Anti-spin system for the head of a cone crusher Anti-spin system for the head of a cone crusher

B - Operations, Transporting

02

C

B02C 2/04 (2006.01)

Patent

CA 2751476

The anti-spin system is applied to a cone crusher having a structure (10) carrying an upper housing (20) and a vertical axle (30); an eccentric element (40) to be rotated around the vertical axle (30); and a cone head (60) disposed inside the upper housing (20) and being axially and rotatively supported on the structure (10) and radially supported around the eccentric element (40). The anti-spin system comprises a braking bush (70) carried by the cone head (60) or by the structure (10), and an annular shoe (80) carried by the other of said parts, which are pressed against each other, by action of the inertial centrifugal force acting on the cone head (60), upon "no-load" operation of the crusher, to generate a friction force opposite and superior to that generated between the cone head (60) and the eccentric element (40) and to prevent the latter from rotatively dragging the cone head (60).

Le système anti-vrille est appliqué à un broyeur à cône possédant une structure (10) portant un logement supérieur (20) et un essieu vertical (30) ; un élément excentrique (40) devant tourner autour de l'essieu vertical (30) ; et une tête de cône (60) disposée à l'intérieur du logement supérieur (20) et supportée de manière axiale et rotative sur la structure (10) et supportée radialement autour de l'élément excentrique (40). Le système anti-vrille comprend un manchon de freinage (70) porté par la tête de cône (60) ou par la structure (10), et un patin annulaire (80) porté par l'autre desdites parties, qui sont pressées l'une contre l'autre, sous l'action de la force centrifuge inertielle agissant sur la tête de cône (60), lors d'une opération « pas de charge » du broyeur, afin de produire une force de frottement opposée et supérieure à celle produite entre la tête de cône (60) et l'élément excentrique (40) et d'empêcher ce dernier d'entraîner de façon rotative la tête de cône (60).

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