| 摘要 |
<P>PROBLEM TO BE SOLVED: To raise efficiency of threshing separation work by making a scraper for chaff sieve cleaning provided in a threshing device automatically operate at an optimal timing. <P>SOLUTION: The threshing device is configured to operate the scraper (34) which scrapes off the waste straw adhering to a first chaff sieve (53), when a layer thickness sensor (43) detects layer thickness more than a certain level, while providing: a threshing net (74) in a lower part of a threshing room (66) which pivots a threshing cylinder (69); a shaking shelf (51) which sorts out a sorted out object while carrying out reciprocal swinging back and forth at a lower part of the threshing net (74); a transfer shelf (52), the first chaff sieve (53), and a second chaff sieve (54) sequentially from transfer direction sending side of the sorted out object in the shaking shelf (51); and a layer thickness sensor (43) on transfer shelf (52), which detects layer thickness of the sorted out object which passes through the transfer shelf (52) on transfer shelf (52). <P>COPYRIGHT: (C)2012,JPO&INPIT |
