Gyratory crusher

B - Operations – Transporting – 02 – C

Patent

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Details

B02C 2/04 (2006.01)

Patent

CA 2762211

A gyratory crusher (10) comprises a crushing head (22), which is arranged rotatably on a substantially vertical shaft (18) and on which a first crushing shell (30) is mounted, and a frame (12), on which a second crushing shell (32) is mounted, which second crushing shell (32), together with the first crushing shell (30), delimits a crushing gap (34). A supporting piston (36) is arranged inside a cavity (40) of said shaft (18), which supporting piston (36) is displaceable in the vertical direction in order to adjust the width of the crushing gap. An eccentric (20) is, by means of at least one radial bearing (42), arranged rotatably about the shaft (18). The gyratory crusher has an oil line (44), arranged in the cavity (40) and extending through a piston plate (37) comprised in the supporting piston (36), for supplying lubricating oil to a lubricating oil chamber (46) configured at least partially in said cavity (40) above the piston plate (37), the lubricating oil chamber (46) being connected to said radial bearing (42) by a duct (50) arranged in the shaft (18).

L'invention porte sur un concasseur giratoire (10) qui comprend une tête de concassage (22), qui est montée à rotation sur un arbre sensiblement vertical (18) et sur laquelle une première coque de concassage (30) est montée, et un cadre (12), sur lequel une seconde coque de concassage (32) est montée, laquelle seconde coque de concassage (32), conjointement avec la première coque de concassage (30), délimite un intervalle de concassage (34). Un piston de support (36) est disposé à l'intérieur d'une cavité (40) dudit arbre (18), lequel piston de support (36) est déplaçable dans la direction verticale de façon à ajuster la largeur de l'intervalle de concassage. Un excentrique (20) est, au moyen d'au moins un palier radial (42), monté à rotation autour de l'arbre (18). Le concasseur giratoire a une conduite d'huile (44), disposée dans la cavité (40) et s'étendant à travers une plaque de piston (37) comprise dans le piston de support (36), pour fournir de l'huile lubrifiante à une chambre (46) d'huile lubrifiante configurée au moins partiellement dans ladite cavité (40) au-dessus de la plaque de piston (37), la chambre d'huile lubrifiante (46) étant reliée audit palier radial (42) par un conduit (50) monté dans l'arbre (18).

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