E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/14 (2006.01)
Patent
CA 2556430
The present invention relates to a clamping apparatus for use with a rock drilling rig. The clamping apparatus comprises first and second jaw means for jaw gripping a drill string component, the first and second jaw means comprising first and second gripping means, respectively, for gripping respective corresponding engagement means of a respective end portion of the drill string component. The clamping apparatus further comprises jaw actuating means. The engagement means are arranged so as to allow clamping independently of the rotational position of the drill string component as seen with respect to its axis of symmetry. The invention also relates to a drill string component and a rock drilling rig.
L'invention se rapporte à un dispositif de fixation qui s'utilise avec un appareil de forage de rocs. Ce dispositif de fixation comprend des premiers et seconds moyens de mâchoire afin de saisir par la mâchoire un composant de train de tiges, les premiers et seconds moyens de mâchoire comprenant des premiers et seconds moyens de saisie, respectivement pour saisir des moyens d'introduction correspondants respectifs d'une partie d'extrémité respective du composant de train de tiges. Cet appareil de fixation comporte aussi des moyens d'actionnement. Les moyens d'introduction sont conçus de manière à permettre une fixation indépendamment de la position de rotation du composant de train de tiges par rapport à son axe de symétrie. Cette invention porte aussi sur un composant de train de tiges et un appareil de forage de rocs.
Atlas Copco Rock Drills Ab
Fetherstonhaugh & Co.
LandOfFree
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