设计制造了一脱粒装置, 使用该装置对小麦穗数、茎秆长度、喂入速度、脱粒速度和脱粒间隙等因素进行了试验,并对小麦脱粒特性的测量和表示进行了研究, 认为可用谷粒分离率沿凹板变化规律的函数f(x) 来表示小麦的脱粒特性,也可用根据该函数计算出的平均凹板弧长Eξ和偏离程度Dξ来表示。 A threshing device was designed and manufactured. The device was used to test the spikelet number, stem length, feed speed, threshing speed and threshing gap, and the measurement and expression of threshing characteristics of wheat were studied. Grain separation rate along the law of variation of the concave plate f (x) to express the characteristics of wheat threshing can also be calculated using the function of the average concave arc length Eξ and the degree of deviation Dξ to represent.