| 摘要 |
<p>A combination tool (1 ) for inserting/spinning and tensioning a cable bolt comprising: an inner drive body (3) and an outer drive body (2), each drive body comprising a drive receptacle (5, 8) at one end, and the outer drive body (2) having one end (6) configured to mount a drill rig chuck or like device for rotating the tool, the inner drive body (3) being slidably and substantially co-axially mounted within the outer drive body (2); and a releasable holding means (9, 13, 14, 16) on the inner and outer drive bodies whereby the inner drive body (3) is moveable between: a holding condition in which the drive receptacle (8) of the inner drive body is located on a lock nut or the like for inserting and spinning the cable within a bore hole, and a released condition in which the drive receptacle (5) of the outer drive body can preferentially engage a lock nut for tensioning the cable bolt.</p> |
