E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 1/00 (2006.01) E21B 1/02 (2006.01)
Patent
CA 2452614
An impact device for a rock drill or the like, comprising means for delivering a stroke, or a stress pulse, at a tool connected to the impact device. The means for delivering a stress pulse comprise an impact element (2) supported to a frame (1a) of the impact device, and means for subjecting the impact element to stress and correspondingly for releasing the impact element (2) suddenly from stress, whereupon the stress energy is discharged in the form of a stress pulse directed at the tool (3) that is directly or indirectly connected to the impact element.
La présente invention concerne un dispositif de percussion destiné à un perforateur mécanique ou analogue. Ledit dispositif comprend un moyen permettant de produire un coup, ou une impulsion de contrainte, sur un outil relié au dispositif de percussion. Le moyen permettant de produire une impulsion de contrainte comprend un élément d'impact (2) supporté par un cadre (1a) du dispositif de percussion, et un moyen permettant de soumettre l'élément d'impact pour contraindre et libérer de manière correspondante l'élément d'impact (2) soudainement de la contrainte, l'énergie de contrainte étant alors déchargée sous la forme d'une impulsion de contrainte dirigée sur l'outil (3) qui est directement ou indirectement relié à l'élément d'impact.
Ahola Erkki
Keskiniva Markku
Maeki Jorma
Rantala Esa
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Sandvik Mining And Construction Oy
Sandvik Tamrock Oy
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