Atlas Copco Rock Drills Ab

Epiroc Rock Drills Aktiebolag

Jan Haglund

Sleeve arrangement for a drill rig, especially adapted for damping sound and sealing to the ground, said drill rig comprising a feed beam () having a drill end () and a rear end (), said feed beam () comprising a first and a second part () near the drill end (), the first part () near the drill end (), the first part () being fixed in relation to the feed beam (), and the second part () being movable in relation to the feed beam () in a longitudinal direction. The invention is characterized in that said sleeve arrangement comprises a first flexible element () attached to the first part (), and a second flexible element () attached to the movable second part (), such that said first and second flexible elements () are movable in relation to each other, wherein said second flexible element () is capable of taking an upper and a lower position, as well as all positions therebetween.

Sleeve arrangement

Housing arrangementfor a drill rig, especially adapted for damping sound, said drill rig comprising a feed beam holder, a feed beambeing movably attached to the feed beam holderand having a drill endand a rear end, and a drilling machinebeing movably attached to and movably along the feed beam, said housing arrangementcomprising a casing, and said feed beamThe invention is characterized in that the casingis directly attachable to the feed beam, such that the casingand at least a part of the feed beamenclose the drilling machine, and allows for mutual movement between the feed beamand the feed beam holder

Housing arrangement

Sleeve arrangement for a drill rig, especially adapted for damping sound and sealing to the ground, said drill rig comprising a feed beam () having a drill end () and a rear end (), said feed beam () comprising a first and a second part () near the drill end (), the first part () being fixed in relation to the feed beam (,) and the second part () being movable in relation to the feed beam () in a longitudinal direction. The invention is characterized in that said sleeve arrangement comprises a first flexible element () attached to the first part (), and a second flexible element () attached to the movable second part (), such that said first and second flexible elements () are movable in relation to each other, wherein said second flexible element () is capable of taking an upper and a lower position, as well as all positions there between.

Housing arrangementfor a drill rig, especially adapted for damping sound, said drill rig comprising a feed beam holder, a feed beambeing movably attached to the feed beam holderand having a drill endand a rear end, and a drilling machinebeing movably attached to and movable along the feed beam, said housing arrangementcomprising a casing, and said feed beam. The invention is characterized in that the casingis directly attachable to the feed beam, such that the casingand at least a part of the feed beamenclose the drilling machine, and allows for mutual movement between the feed beamand the feed beam holder

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Karlskoga, Sweden

Jan Haglund