| 摘要 |
A cleaning arrangement for a combine is equipped with return gutters, inclined and attached to the sides of the cleaning shoe and which serve to capture crop which accumulates on the upper surface of the cleaning shoe, during operation on a slope, and escapes across the side walls of the upper sieve. The crop is conducted by the return gutters to screw conveyors operating in opposite directions which direct the crop to vertical conveyors, which return the crop upstream of the cleaning shoe.
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