| 摘要 |
The drilling machine has multiple drilling rods. The machine has a frame with two vertical members (1,2) which form guides for a slide (3) and a slide (18). The slide is actuated by telescopic power cylinders (9) and is connected by chains (19) to the slide (7) which carries the drill head (24). A platform (13) has a gear box which drives a vertical shaft (21) connected to a second gear box (4) which drives a second vertical shaft (6) which can slide vertically in the second gear box (4). This second vertical shaft drives the drill head. USE - Drilling machines.
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