| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the damage of a second product in a returning cylinder in a combine harvester. <P>SOLUTION: The combine harvester is constituted as follows. A screw 40 for returning to selection is constituted to convey the second product to a returning part 35 for the selection having a returning port 70 for the selection, capable of returning the second product to a wind selection chamber 24 formed at the intermediate part of the returning cylinder 33. A screw 38 for returning to threshing is constituted so that the returning product may be lifted and conveyed to a conveying screw 34. The screw 40 for returning to the selection and a returning screw-rotating shaft 50 of the screw 38 for returning to the threshing are constituted to be axially installed with an upper attaching part 54 installed in a left-side plate 52 of a threshing apparatus 3. The returning part of a second returning grain-lifting device 32 can be switched to one of a threshing chamber 21 and a swinging selection shelf 25 by selecting the screw 40 for returning to the selection and the screw 38 for returning to the threshing. <P>COPYRIGHT: (C)2011,JPO&INPIT |
