| 摘要 |
The dismantlable drilling head frame comprises a plurality of jigs (11, 12, and 13) which can be previously anchored in the ground and then adjusted accurately by a longitudinal and vertical or omnidirectional device to the axis of the desired drilling point. By virtue of the lightweight construction of the head frame, it is easily moved from one jig to the next, without having to use special lifting machines. Its double articulated column with slide (1 to 9), its removable drilling jigs and its separate control panel make it possible to drill in all positions, even in uneven and very steep ground. The tool-holding carriage (2) can receive all types of conventional drilling machines available on the market. The drilling machine can be driven (4, 5 and 6), just like the tool-holding carriage, pneumatically, hydraulically or electrically. <IMAGE>
|
