Twin-roll machine, in particular for material bed milling

Details Twin-roll machine, in particular for material bed milling Twin-roll machine, in particular for material bed milling

B - Operations, Transporting

02

C

B02C 4/32 (2006.01) B02C 4/02 (2006.01)

Patent

CA 2597426

The aim of the invention is to configure a twin-roll machine, in particular a roll press for the bed milling of a granular material, comprising two rotatably mounted rolls (11, 12) that are separated by a nip and driven in opposite directions in such a way that the hydraulic cylinders that are used to exert the roll compression force no longer need to be supported on a heavy- duty machine frame, which complicates the replacement of the rolls, for example, in the event of a repair. To achieve this, the hydraulic cylinders (15, 16) are located in such a way that they respectively engage with both the bearing housings (14) of one roll (12) and the opposing bearing housings (13) of the other roll (11), forming a closed milling compression force system without the need for a closed machine frame that bears the roll compression forces.

L'invention concerne une machine à deux cylindres, en particulier une presse à rouleaux pour le broyage d'un lit de matière en grains, cette machine comprenant deux cylindres (11, 12) rotatifs entraînés en sens inverse et séparés par un espace. L'objectif de l'invention est de concevoir une machine de ce type caractérisée en ce que les vérins hydrauliques utilisés pour appliquer la force de pression des cylindres ne s'appuient plus contre un cadre lourd de la machine rendant plus difficile le remplacement des cylindres, par exemple en cas de réparation. A cet effet, les vérins hydrauliques (15, 16) sont disposés de telle sorte qu'ils viennent en prise contre les logements de palier (14) d'un cylindre (12) et contre les logements de palier (13) opposés de l'autre cylindre (11) de façon à former un système autonome de forces de compression de broyage sans cadres de machine fermés soumis aux forces de pression des cylindres.

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