| 摘要 |
A self-propelled material-processing apparatus (10) comprising a chassis (12), an engine (13) mounted on the chassis near the forward end thereof, endless tracks (14) permanently supporting the chassis (12) and power-operated by the engine (13), a supply conveyor (18) having a material-receiving end (15) which projects forwardly of the forward end of the chassis (12) and having an upper discharge end (21), a material processing device (11), e.g. a screen box mounted directly or indirectly on the chassis (12) generally above the rear end of the chassis (12) and arranged to receive material from the discharge end (21) of the supply conveyor (18), and a discharge conveyor (121) adjustably mounted on the rear end of the chassis (12) for movement between an operative position and a transport position: in which the weight of the apparatus, when in the operative position, is generally balanced by the engine (13) and forward end (15) of the conveyor (18) at the forward end of the chassis and the screen (11) and discharge conveyor (121) at the rear end of the chassis. |
