Rock drilling device
AssigneeAtlas Copco Rock Drills AB
InventorFredrik Saf
Life of this patent
Estimating the term…
Abstract
A rock drilling device has a feed beam (1) and a rock drilling machine (2) movable along the feed beam. The rock drilling machine is fed along the feed beam (1) by a feed line (7), which is routed over a sheave (6) arranged at the movable end (5) of a pressure medium cylinder (3). A further line (8) is arranged between two points (9, 10) which are fixed relative to the movable end of the pressure medium cylinder. The further line (8) is connected to a measuring device (11) which is fixed to the feed beam (1) for measuring displacement of the rock drilling machine (2) along the feed beam.
Claims1
Rock drilling device comprising a feed beam (1), a rock drilling machine movable to-and-fro along the feed beam, a pressure medium cylinder (3) of which one end (4) is fixed relative to the feed beam (1) and the other end (5) is movable relative to the feed beam and carries a sheave (6) over which a feed line (7) is routed, said feed line (7) being connected with the feed beam (1) and with the rock drilling machine (2) for feeding the rock drilling machine along the feed beam,
- characterized in that a further line (8) is arranged between two points (9, 10) which are fixed relative to the movable end (5) of the pressure medium cylinder (3), and that said further line (8) is connected with a measuring device (11) which is fixedly arranged on the feed beam (1).
Dependencies are inferred from the claim text.