我国南方两种水稻脱出物物理特性测定与分析  

Determination and Analysis of Two Kinds of Threshed Rice Physical Properties in South China

作　　者：原建博 吴崇友[2] 李骅[3] 齐新丹[1] 肖星星[1] 施新新 

机构地区：[1]南京工业大学机械与动力工程学院,南京211816 [2]农业部南京农业机械化研究所,南京210031 [3]南京农业大学工学院,南京210031

出　　处：《农机化研究》2018年第2期154-159,共6页Journal of Agricultural Mechanization Research

基　　金：农业部现代农业装备重点实验室开放项目(201602004);国家自然科学基金项目(51305182)

摘　　要：水稻收获时,脱粒后混合物主要包括谷粒、瘪谷和短茎秆等,混合物的基础物理特性直接影响其筛分和清选效果。混合物的物理特性数据为相关农业机器的数字化精确设计与数值计算提供了基本的理论参数。通过实验方法,对我国南方中早39号早稻和C两优华占杂交晚稻收获脱出物的含水率、千粒质量、密度、三轴尺寸、静摩擦因数及恢复系数等基本物理参数进行测定,并进行了统计分析与对比研究,得到了两种水稻脱出物相关物理特性参数的具体值,确定了物料的三轴尺寸。研究表明:两种水稻脱出物物理特性存在差异,主要是由于品种、收获季节的差异性造成的,该研究还可为水稻脱出物颗粒流动及相关研究提供参考。After the rice harvest,threshing mixture including grain、shriveled grain、short stalk etc.,the basic physical properties of the mixture directly influence its sieving and cleaning performance. Physical properties of the mixture data provides the basic theory for related machine design and the numerical calculation parameter,lay a foundation for related digital precision design of farm machinery. we study threshed rice‘s physical properties including of Zhongzao 39 early rice and C Liangyouhuazhan late rice in southern China by the experimental measurement and theoretical analysis me thod. The basic physical properties parameters including moisture content,grain size,density,triaxial,static friction coefficient and recovery coefficient,shear modulus,etc. We get the exact value of the two kinds of rice related parameters,determined the materials of three axis. The results showed that different varieties of threshed rice physical characteristics were differences. The results of the study can provide reference for rice particle flow and related research.

关 键 词：中早39号早稻 C两优华占杂交晚稻 物理特性 测定与分析 

分 类 号：S225[农业科学—农业机械化工程] S183[农业科学—农业工程]