Rock drilling machine and axial bearing module

Details Rock drilling machine and axial bearing module Rock drilling machine and axial bearing module

B - Operations, Transporting

25

D

B25D 17/06 (2006.01) B25D 9/14 (2006.01) B25D 17/24 (2006.01) E21B 1/38 (2006.01) E21B 6/00 (2006.01)

Patent

CA 2743923

The invention relates to a rock drilling machine and an axial bearing module. The rock drilling machine (5) is equipped with an axial bearing (18) having at least one axial piston (19, 20) for axially positioning a drill shank (7) and for damping stress pulses returning from the rock. The axial bearing comprises a module (21) that is detachable in one piece from one installation direction. The axial bearing module comprises the required pressure medium channels (27), seals (37, 37a, 37b, 37c), bearing surfaces (18), and a module frame (22, 25, 38a, 38b) having at least bearing housing in connection therewith.

L'invention est relative à un perforateur de roches et à un module de palier axial. Le perforateur de roches (5) est équipé d'un palier axial (18) qui comprend au moins un piston axial (19, 20) pour positionner axialement une tige de forage (7) et pour amortir les impulsions de contrainte renvoyées par la roche. Le palier axial comprend un module (21) qui peut être détaché en une seule pièce à partir d'un sens d'installation. Le module de palier axial comprend les canaux de fluide sous pression (27), les joints (37, 37a, 37b, 37c) et les surfaces d'appui (18) requis, ainsi qu'un châssis de module (22, 25, 38a, 38b) qui comprend au moins un logement de palier relié à celui-ci.

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