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US 4,067,398 AGranted
Ring drilling rig
AssigneeAtlas Copco Aktiebolag
InventorsSven Mauritz Franzen, Lars Magnus Gunnar Soderlund
Life of this patent
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Abstract
A ring drilling rig for rock drilling has a feed beam for a rock drill. The feed beam is mounted in a holder on the distal end of an arm that is mounted on a support. The support is tiltable about a transverse horizontal axis. The arm is swingable 360.degree. about a longitudinal axis to which it is perpendicular. The feed beam and its holder are pivotable about an axis that is parallel with the axis about which the arm swings. The feed beam is axially displaceable in its holder.
Claims17
A ring drilling rig comprising:
- a chassis (10),
- a support (15) swingably mounted on the chassis (10) at one end thereof so as to be tiltable about a first horizontal axis (I) that is transverse to the chassis,
- power means (16) coupled to said support (15) to tilt said support (15) relative to said chassis (10),
- an arm (21) swingably mounted to said support (15) so as to be swingable about a second axis (II) that is perpendicular to said first axis (I),
- power means (17) coupled to said arm (21) to swing said arm (21) about said second axis (II) through an arc of 360.degree., said arm (21) being always transverse to said second axis (II), and
- a feed beam (24) swingably mounted on the distal end of said arm (21) and being transverse to said second axis (II), said feed beam (24) being swingable on said arm (21) about a third axis (III) parallel with said second axis (II), said third axis (III) being coupled to said support (15) via said second axis (II).
3 more elements
Dependencies are inferred from the claim text.