The invention relates to the field of
agricultural machinery, in particular to a half-feeding
combine harvester threshing and separating device with a revolving concave grid, which is mainly applied to a half-feeding paddy rice
combine harvester and is used for enhancing the
threshing and separating capabilities, increasing the granule
threshing rate, greatly lowering the blockage probability of a threshing device and increasing the production efficiency during operation of the half-feeding paddy rice
combine harvester. The half-feeding combine harvester threshing and separating device mainly comprises a
left wall plate, a porous plate, a right
wall plate, a V-shaped belt transmission
assembly, a revolving concave grid
assembly and a threshing drum. The half-feeding combine harvester threshing and separating device is reasonable in structure; crops are prevented from being accumulated in the threshing device and causing blockage due to revolving motion of a concave grid surface during operation, the threshing and separating capabilities are enhanced, and
adaptation to harvesting of high-yield crops in a wet environment is realized; the upper layer surface of the concave grid moves at a certain linear speed, so that
combing and threshing are realized on the upper and lower
layers of the crops, overhead and bent grains are combed and threshed, and the loss caused by incomplete threshing is reduced.