| 摘要 |
In a combine harvester of the axial-flow type provided with a roller (14) for accelerating the fall of the produce onto the cleaning unit (10) a fixed wall (16) which cooperates with the accelerator roller (14) has its lower part shaped so as to incline the flow of the produce accelerated by the roller (14) with respect to a vertical plane, resulting in an increase in the area of produce flow which is subject to a current of air for separating the light material from the grain. The inclined flow of produce accelerated by the accelerator roller (14) falls onto a table (21) forming part of a shaking box (18) of conventional type, Gearing the cleaning screens (19,20). No further collecting table for the produce is interposed between the accelerator roller (14) and the shaking box (18) again for the purpose of obtaining an extended area of air-seperation. |
