Abstract
For improving threshing-cleaning rate of corn ears in the process of threshing and mastering relationship of threshing-cleaning rate of corn ears and moisture content of kernel, feeding form of corn ears, threshing roller speeds, the experiments of corn ears threshed under different feeding form of corn ear and different threshing roller speeds and different moisture content of kernels was proceeded on the threshing device with dual-feeding entrances. Experiment indicate : when the value of moisture content of kernel is 25%, threshing-cleaning rate of corn ears is lower than the value of 13.5% moisture content of kernel; when corn ear is fed from A feeding entrance, the impacting and threshing way is the main threshing way, threshing-cleaning rate of corn ears is high; when corn ear is fed from B feeding entrance, the way with different speeds threshing parts is the main threshing way, threshing-cleaning rate of corn ears is low; when corn ear is fed from A feeding entrance and B feeding entrance, threshing-cleaning rate of corn ears will increase with increase of threshing roller speed under same moisture content.
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