| 摘要 |
A working machine(10) comprising a ground engaging structure(fig 2, 19a) and an undercarriage(12) connected to the ground engaging structure(fig 2, 19a). A superstructure(14) is rotatably mounted by a slew ring(16) to the undercarriage(12), so as to be rotatable relative to the undercarriage(12) about a first generally upright axis, an operator's cab(30) is rotatably mounted on the superstructure(14) so as to be rotatable relative to the superstructure about a second generally upright axis, and a working arm(42) is rotatably mounted to the superstructure so as to be moveable up and down about a generally horizontal axis. A drive arrangement isprovided for driving the ground engaging structure(fig 2, 19a) to propel the working machine. The drive arrangement includes an engine and transmission that are housed within the undercarriage, and a majority of the engine is positioned below a level coincident with a lower extent of the superstructure. |
