Flexible tubing for rotary percussion drilling device

Details Flexible tubing for rotary percussion drilling device Flexible tubing for rotary percussion drilling device

E - Fixed Constructions

21

B

E21B 17/20 (2006.01) B23B 51/06 (2006.01)

Patent

CA 2596633

Le tubage flexible (2) est prévu pour transmettre un effort de poussée et un couple de rotation à un corps de perforatrice, et pour alimenter le corps de perforatrice en fluide hydraulique sous pression. Ce tubage flexible (2) se compose, à l'extérieur ou à l'intérieur, d'un flexible hydraulique (3) et, à l'intérieur ou à l'extérieur selon le cas, d'un tuyau agrafé (4). Il comporte, à ses extrémités, des raccords (6) aptes à transmettre l'effort de poussée et le couple de rotation. Application aux dispositifs de foration par rotopercussion utilisant un "marteau fond de trou", pour travaux miniers.

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