梳刷式微型小麦联合收割机的设计  

Design of threshing mini type wheat combine

作　　者：耿令新[1] 李广伦[2] 张利娟[3] 师清翔[1] 卢秀丽[1] 

机构地区：[1]河南科技大学农业工程学院,河南洛阳471003 [2]洛阳理工学院电气工程与自动化系,河南洛阳471003 [3]河南科技大学车辆与交通工程学院,河南洛阳471003

出　　处：《中国农机化学报》2014年第4期25-28,31,共5页Journal of Chinese Agricultural Mechanization

基　　金：国家科技支撑计划资助(2011BAD20B10)

摘　　要：为适应丘陵山区小麦机械化收割的需要,设计了一种梳刷式微型小麦联合收割机。其主要特点是小麦在切割之前,螺旋喂入装置将穗头沿切向压入轴流脱粒滚筒,通过梳脱元件直接对穗头进行脱粒,然后再切割秸秆并铺放。由于秸秆未进入脱粒装置,降低了脱粒、分离和清选负荷,使整机功率消耗降低。所设计的样机由底盘、喂入脱粒装置、输送清选装置和切割铺放装置等部件组成。第一轮样机试验表明,秸秆在脱粒装置喂入口处易发生堵塞,且籽粒损失率较大,于是在第二轮设计中增加了接粒板和挡帘,并优化了轴承座和螺旋叶片结构,克服了以上问题。Designed according to the requirement of mechanized harvesting wheat which grow in hilly area. Its important characteristics are driving only the ears of wheat along the tangential direction of roller into threshing mechanism and threshing grain directly through threshing units before cutting the straws, After that it cuts the stalks and lays on the ground. The overall power consumption was reduced due to no straws entering threshing mechanism. The combine was mainly made up of chassis, feeding threshing device, conveyor cleaning device and cutting laying device. The first round of the prototype test indicated that straws in the feeding entrance of threshing device were easily blocked and the grain loss rate was higher. So in the second design a collecting plate and preventing curtain were devised and structures of bearing block and helical blade were optimized to resolve these problems.

关 键 词：梳刷脱粒 联合收割机 扬谷器 螺旋输送 

分 类 号：S225.3[农业科学—农业机械化工程]