Rock drilling arrangement, rock drilling rig and drilling method
AssigneeSandvik Mining and Construction Oy
InventorsKimmo Koskinen, Tero Yli-Hannuksela, Jukka Simila, Tapio Makinen, Toni Hietikko
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Abstract
A rock drilling arrangement, rock drilling rig and drilling method is provided. The rock drilling arrangement includes a drilling boom, which is mountable to a carrier of the rock drilling rig. The boom is provided with two rock drilling units arranged movably in the longitudinal direction of the boom. Further, the drilling units may be moved independently relative to each other.
Claims10
A rock drilling arrangement comprising:
- a drilling boom;
- and
- two rock drilling units supported movably on the boom, each of the rock drilling units being mounted on a carriage, wherein the carriages are each movable independently relative to the boom, wherein between each of the carriages and the rock drilling units are located separate rotation units arranged for turning the rock drilling units independently relative to the boom, and wherein the carriages are configured to be moved in a longitudinal direction of the boom, and rotation axes of the rotation units are perpendicular relative to the movement direction of the carriages.
A method of drilling drill holes to a rock surface by a rock drilling arrangement including a drilling boom and two rock drilling units supported on the drilling boom, and wherein the two rock drilling units are separately moved relative to the drilling boom, the method including the steps of:
- positioning at least part of the drilling boom vertically;
- moving the two rock drilling units vertically relative to the drilling boom for positioning them in desired vertical positions;
- moving two rock drilling units in a longitudinal direction of the drilling boom;
- and
- executing the movements of the two rock drilling units independently relative to each other.
Dependencies are inferred from the claim text.