大豆收获机纵轴流柔性脱粒装置脱出物分布规律

为探究纵轴流柔性脱粒装置工作参数对脱出物分布的影响以及脱出物分布规律，在自行研制的纵轴流脱粒分离清选试验台上，以滚筒转速、脱粒间隙、喂入量和导流板角度为试验因素，对纵轴流柔性脱粒装置脱出物在轴向和径向的分布变化进行单因素试验，结果表明:1)随着工作参数的变化，轴向和径向脱出物分布趋势变化不明显；2)纵轴流柔性脱粒装置的轴向脱出物、籽粒分布规律符合指数函数分布，豆荚、轻质杂余分布规律符合三次函数分布；3)径向脱出物、籽粒、豆荚、轻质杂余的分布规律符合系数不同的多项式形式。

Distribution regularities of the threshed mixtures in longitudinal axial flow flexible thresher of soybean harvester

In order to find out the distribution regularities of threshed mixtures and study the influence of working parameters effect the distribution of threshed mixtures by longitudinal axial flow flexible threshing and separating device in harvester, a single factor test was designed. Experiments were conducted on a self-developed test platform for studying the changes in the axial and radial distribution of the mixtures from the longitudinal axial flow flexible threshing device using the drum rotation speed, threshing clearance, feeding amount and baffle angle as test factors. The results showed that: 1)When the working parameters changed, the distribution of the threshed mixtures did not change significantly in the axial and radial directions; 2)The axial mixtures and grain distribution of the flexible thresher conformed to the exponential function, the distribution regularities of pods and light debris conformed to the cubic function; 3)The distribution regularities of radial mixtures, grains, pods and light debris conformed to polynomials with different coefficients.