小区育种纵轴流脱粒分离装置试验研究  

Experiment on longitudinal axial conical cylinder threshing separation unit for plot breeding

作　　者：戴飞[1] 韩正晟[1] 张锋伟[1] 高爱民[1] 孙步功[1] 

机构地区：[1]甘肃农业大学工学院,甘肃兰州730070

出　　处：《干旱地区农业研究》2012年第3期274-278,共5页Agricultural Research in the Arid Areas

基　　金：国家科技部星火计划资助项目(2010GA860034);甘肃省农牧厅资助项目"小区小麦种子收获成套技术集成推广"(070306);甘肃省教育厅资助项目"小区小麦种子联合收获机的研制"(080203)

摘　　要：为获得小区育种纵轴流脱粒分离装置最佳作业参数,依据小区育种收获机理,通过改变影响纵轴流锥型滚筒脱粒分离装置作业性能指标的4个主要作业参数:物料喂入量、滚筒转速、脱粒间隙、吸杂风机转速,以装置罩壳内部籽粒残留率、脱粒总损失率、分离含杂率及脱粒破碎率为评价指标进行装置作业性能试验。结合正交试验研究,应用综合评分法得出了装置作业时各参数的最优组合,即:喂入量为0.3 kg/s、滚筒转速为1 600 r/min、脱粒间隙为8mm、吸杂风机转速为1 100 r/min。按照该最优组合作业参数进行试验,试验结果表明,装置脱粒总损失率为0.45%、分离含杂率为16.16%、罩壳内部籽粒残留率为0.04%、脱粒破碎率为0.46%,符合小区育种收获要求。In order to obtain the working parameters of longitudinal axial conical cylinder threshing separation unit for plot breeding, an experiment was conducted in the light of plot seed harvest mechanism, by changing 4 main opera- tional parameters （feed quantity, rotate speed of cylinder, threshing clearance, rotate speed of gettering fan） which influ- enced the unit performance indexes, with the residued rate of shell internal, the total loss rate, the trash content of cleaning rate and the broken rate as evaluating indicators. Through the orthogonal experiments, application overall rating method to obtain the optimal combination working parameters （feed quantity： 0.3 kg/s, rotate speed of cylinder： 1 600 r/min, threshing clearance： 8 mm, rotate speed of gettering fan： 1 100 r/rain） of the unit. Measured with the optimal combination of operational parameters, the experimental results showed that, the total loss rate was 0.45 %, the trash content of cleaning rate was 16.16%, the residued rate of shell internal was 0.04%, and the broken rate was 0.46%, which could meet the demand of plot seed harvest.

关 键 词：小区育种 轴流 脱粒 分离 试验 

分 类 号：S225[农业科学—农业机械化工程]