An improved rotary roller reamer

Details An improved rotary roller reamer An improved rotary roller reamer

E - Fixed Constructions

21

B

E21B 10/30 (2006.01)

Patent

CA 2504775

The invention relates to a roller assembly (20) for a rotary roller reamer (10). The roller assembly (20) includes a roller pin (22) and a crushing roller (24). The crushing roller (24) is arranged to be mounted on the roller pin (22) and to rotate thereabout. The roller assembly (20) is connected together so as to form a single cartridge which can be inserted into a pocket (18) of the rotary roller reamer (10) and secured thereto using a single fastener device.

L'invention concerne un ensemble rouleau (20) destiné à un aléseur à rouleau rotatif (10). Cet ensemble rouleau (20) comprend un axe de rouleau (22) et un rouleau broyeur (24). Ledit rouleau broyeur (24) est destiné à être monté sur l'axe de rouleau (22) et à être mis en rotation autour de celui-ci. L'ensemble rouleau (20) est assemblé de façon à former une cartouche unique qui peut être insérée dans un logement (18) ménagé dans l'aléseur à rouleau rotatif (10) et fixée dans ce logement au moyen d'un dispositif de fixation unique.

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