Crankpin grinder

Details Crankpin grinder Crankpin grinder

B - Operations, Transporting

24

B

B24B 5/42 (2006.01) B24B 21/02 (2006.01)

Patent

CA 2081699

A crankshaft is rotated about its central longitudinal axis and abrasive belts are moved along paths substantially perpendicular to the crankshaft such that the abrasive surfaces of the belts grind the crankpin journals while the crankshaft rotates. The belts are guided independently of one another at the point of contact with the crankpin journals along a variable path according to the position of the crankpin journal around the central longitudinal axis of the crankshaft as the crankshaft rotates. Each belt may be guided by a thin, flat blade across which the belt slides, or in some instances it is preferably guided by a freely rotatable roller in substantially frictionless contact with the belt.

Un arbre à manivelle tourne autour de son axe longitudinal central, et des bandes abrasives se déplacent le long de trajets essentiellement perpendiculaires à l'arbre de façon que les surfaces abrasives des bandes meulent les tourillons pendant que l'arbre tourne. Les bandes sont guidées indépendamment l'une de l'autre au point de contact avec les tourillons le long d'un trajet variable selon la position des tourillons autour de l'axe longitudinal central de l'arbre pendant la rotation de ce dernier. Chaque bande peut être guidée par une lame mince plate sur laquelle la bande glisse ou, dans d'autres cas, elle est guidée de préférence par un rouleau rotatif en contact essentiellement sans frottement avec la bande.

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