双螺旋梳脱滚筒的设计与参数优化  

Design and Parameter Optimization of A Double-spiral Feeding and Threshing Roller

作　　者：耿令新[1] 张利娟[2] 师清翔[1] 卢秀丽[1] 周铭丽[2] 

机构地区：[1]河南科技大学农业工程学院,河南洛阳471003 [2]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《农机化研究》2014年第12期175-181,共7页Journal of Agricultural Mechanization Research

基　　金："十二五"国家科技支撑计划项目(2011BAD20B10)

摘　　要：设计了一种可对田间水稻割前脱粒的双螺旋喂入梳脱滚筒。通过室内试验台架,在额定喂入量下,以损失率和脱出物中的含杂率为试验指标,以滚筒转速、齿迹距、梳齿高度和滚筒锥度为4个试验因素,进行了正交试验和回归试验。通过对试验数据进行统计分析,得出试验范围内各试验因素对试验指标的影响规律,优化确定了该脱粒装置的最佳参数组合:滚筒转速760r/min,齿迹距12.4mm,梳齿高度8mm,滚筒锥度5°,损失率0.48%,含杂率8.75%。A double-spiral feeding and threshing roller is designed to harvest rice before cutting .Through test-bed , or-thogonal and regressive experiments are carried out to study relations between targets , including loss-rate and dirt per-centage , and factors , including roller speed , teeth clearance , teeth height and roller taper .The rulers are obtained by analyzing test data and optimal parameters are defined as below：roller speed 760r/min, teeth clearance 12.4mm, teeth height 8 mm and roller taper 5 °as well as loss-rate loss-rate and dirt percentage and dirt percentage 8 .75%.

关 键 词：割前脱粒 谷物联合收割机 轴流脱粒装置 参数优化 

分 类 号：S225.3[农业科学—农业机械化工程]