Device and method in respect of a rock drill rig, drill string compoment, handling device and rock drill rig
AssigneeAtlas Copco Rock Drills AB
InventorRune LINDBERG
Life of this patent
Estimating the term…
Abstract
A tensioning device for a chain transmission for movement transfer between a driver device and a slide to be driven by a drive chain along a linear guide of a rock drill rig. A first fastening member fastens a first end of the drive chain on the slide. A second fastening member fastens a second end of the drive chain on a tensioning head, which is arranged displaceable in a tension direction of the drive chain on the slide. A spring device is arranged between the tensioning head and the slide for spring loading the tensioning head in the tension direction. At least one of the first and second fastening members includes an adjuster for adjusting tension in the drive chain. Also a method, a handling device and a rock drill rig.
Claims16
Tensioning device for a chain transmission for movement transfer between a driver device and a slide (7) to be driven by a drive chain (18) along a linear guide (6) of a rock drill rig, characterized in
- a first fastening member (24) for fastening a first end of the drive chain on the slide (7), and
- a second fastening member (25) for fastening a second end of the drive chain on a tensioning head (26) which is arranged displaceable in a tension direction (S) of the drive chain (18) on the slide (7), wherein a spring device (27) is arranged between the tensioning head (26) and the slide (7) for spring loading the tensioning head in the tension direction (S), and
- wherein at least one of said first (24) and second (25) fastening members includes adjustment means (28) for adjusting tension in the drive chain (18).
Method for tensioning a chain transmission for movement transfer between a driver device and a slide (7) to be driven by a drive chain (18) along a linear guide (6) of a rock drill rig, a first end of the drive chain is fastened to the slide (7) through a first fastening member (24), and a second end of the drive chain is fastened through a second fastening member (25) on a tensioning head (26) which is displaced in a tension direction (S) of the drive chain (18) on the slide (7),
- wherein the tensioning head (26) is spring loaded in the tension direction (S) through a spring device (27) being arranged between the tensioning head and the slide (7), and
- wherein tension in the drive chain is adjusted through adjustment means (28) being included in at least one of said first (24) and second (25) fastening members.
Dependencies are inferred from the claim text.