| 摘要 |
FIELD: agricultural engineering. SUBSTANCE: stone-picking machine has digging share 1, separating conveyor 2 and unloading conveyor 5, which are arranged successively in the direction of movement of stone-picking machine. Fan 3 with slit-shaped nozzle 4 is mounted on machine. Nozzle 4 directs air flow from above onto soil layer between separating and unloading conveyors 2, 5. Fan 3 blows off plant remains and crumbs from soil layer downward onto ground. Stones free of contaminants are directed onto unloading conveyor 5. EFFECT: increased efficiency and improved quality of separating stones from soil and plant remains. 1 dwg
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