| 摘要 |
A multi-purpose mining machine comprising a self-propelling power unit 1 with a boom pivotally connected to the power unit for raising and lowering movements, the boom having two parts 5, 6 one 5 connected to the power unit 1 and the other 6 being connected to said one part 5 so as to be slewable relative thereto about an axis at 90 DEG to the axis of the connection 4 of the boom to the power unit, the boom other part being in part downwardly inclined with a power shaft rotatably housed in the boom other part and driven by drive means also housed in the zone 12 of the boom part 6, and extensible means 11 to raise and lower the boom and further extensible means 16 to slew the boom one part relative to the other part thereof. <IMAGE> |
