Drill tool

B - Operations – Transporting – 28 – D

Patent

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Details

B28D 1/14 (2006.01) B23B 45/16 (2006.01)

Patent

CA 2600048

A drill tool, comprising a drive source stored in a device body (2), a bit drive shaft (3) rotatingly driven by the drive source and projectedly installed forward of the device body (2), and a diamond bit (4) fitted to the tip of the bit drive shaft (3). Also, the drill tool comprises an excitation device part producing an excitation force acting on the bit drive shaft (3) in the axial direction and fluctuating in magnitude and an excitation moment acting on the bit drive shaft (3) in the rotating direction and fluctuating in magnitude.

Outil de perçage comportant une source d'entraînement logée dans un corps de dispositif (2), un arbre d'entraînement du foret (3) entraîné en rotation par la source d'entraînement et installé en saillie à l'avant du corps de dispositif (2) et un foret à diamant (4) fixé au bout de l'arbre d'entraînement du foret (3). L'outil de perçage comprend également un dispositif d'excitation produisant un effort d'excitation agissant sur l'arbre d'entraînement du foret (3) dans la direction axiale et fluctuant en amplitude ainsi qu'un moment d'excitation agissant sur l'arbre d'entraînement du foret (3) dans sa direction de rotation et fluctuant en amplitude.

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