Back to results
US 4,226,559 AGranted
Rock bolting apparatus
AssigneeAtlas Copco Aktiebolag
InventorSoren P. Prebensen
Life of this patent
Estimating the term…
Abstract
A rock bolting apparatus comprises a rock drill, a bolt setting apparatus, and a magazine for rock bolts. Plates for the bolts are stapled in a magazine separated from the bolts. The plate magazine is located at the front end of the bolt magazine. The plates are used to centralize the bolts relative to the borehole.
Claims12
Rock bolting apparatus comprising:
- a rock drill (25) and a bolt setting machine (31), both of which are mounted to be laterally power displaceable to an from their position for operation and are axially power feedable;
- a magazine (37) for rock bolts, the rock bolts (46) being power displaceable to an operating position in alignment with a borehole made by the rock drill;
- a magazine (38) for plates in which the plates (55) are stored separated from the rock bolts (46), said plates having a rock bolt receiving opening therein and said plate magazine (38) being located at the front end of the bolt magazine (37);
- and
- a centralizer for centralizing a rock bolt (46) during insertion of a rock bolt in the borehole, the centralizer comprising a holder (59) for a plate (55) that is to be used with the rock bolt, and means (60,62,63) for locating said holder (59) relative to the borehole such that the opening of said plate is aligned with said borehole so that the plate with its bolt receiving opening will centralize the rock bolt.
2 more elements
Rock bolting apparatus comprising:
- a rock drill (25) and a bolt setting machine (31), both of which are mounted to be laterally power displaceable to an from their postion for operation and are axially power feedable;
- a magazine (37) for rock bolts, the rock bolts (46) being power displaceable to an operating position in alignment with a borehole made by the rock drill;
- a magazine (38) for plates in which the plates (55) are stored separated from the rock bolts (46), said plates having a rock bolt receiving opening therein and said plate magazine (38) being located at the front end of the bolt magazine (37);
- and
- said bolt setting machine (31) being arranged to fetch the rock bolts from the bolt magazine (37) being powder displaceable laterally between a position for catching a rock bolt in the bolt magazine (37) and a working position for driving a rock bolt into the borehole, said bolt setting machine, in its position for catching a rock bolt (46), being arranged to displace the rock bolt (46) forwardly into engagement with a plate (55) in the plate magazine (38);
- and
- a plate moving device (59,60,63) arranged to move a plate, which is in engagement with a rock bolt, from the plate magazine (38) to a position in alignment with the borehole such that the rock bolt engaged with the moved plate is in alignment with the borehole.
4 more elements
Dependencies are inferred from the claim text.