玉米脱粒机的结构设计 （毕业论文）.doc

毕业设计说明书 玉米脱粒机的结构设计 学生姓名： 学号 学 院： 机械工程与自动化学院 专 业： 机械设计制造及其自动化 指导教师： 2011年 6月 玉米脱粒机的设计 摘要：机械化是农业发展的方向,是减轻劳动者的强度,节省时间,提高效率的较好途径.为了降低农民在玉米脱粒时劳动强度、提高工作效率,设计玉米脱粒机。玉米脱粒机用于对晾干后的玉米穗进行脱粒。 该机主要有入料口、栅格式凹板和钉齿脱粒滚筒及传动部件等组成。以电动机为动力源，动力由电动机输出轴输出，再通过传动带传递到钉齿脱粒滚筒上，钉齿脱粒滚筒配合栅格式凹板将玉米脱粒，玉米粒从栅格式凹板分离并排出机体外，而玉米芯从入料的另一端排出机体之外。 关键词：玉米；脱粒机；结构；设计 Maize sheller structure design Abstract: Agricultural mechanization is the direction of development, the strength of the laborers is ease, save time, improve efficiency a better way. For reducing a present during the period of the maize threshes, the intensity of labour, raises working efficiency, design maize sheller. Maize sheller used to the dry corn after on threshing. Be machines turn to have mainly enter except that mouth, bars form notch and nail tooth the cylinder threshing and drive component etc. Are composed of. Take electric motor as driving force source, driving force exports axis output from the electric motor, the nail tooth seed-husking cylinder threshes on the cylinder threshing again by the fact that belt delivery arrives at the nail tooth, coordinating bars form notch board with the maize, beside niblet complies with bars form notch board separation and the outside discharging airfram, but the maize core discharges airframe from another one end entering material. Keywords: Maize; Sheller; Structure; Design 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc10070 1引言 PAGEREF _Toc10070 1 HYPERLINK \l _Toc32595 1.1 课题研究背景及意义 PAGEREF _Toc32595 1 HYPERLINK \l _Toc22325 1.2 国内外研究现状 PAGEREF _Toc22325 1 HYPERLINK \l _Toc16821 1.2.1 国外研究现状分析 PAGEREF _Toc16821 1 HYPERLINK \l _Toc14002 1.2.2 国内研究现状分析 PAGEREF _Toc14002 2 HYPERLINK \l _Toc22895 1.3 本课题研究内容 PAGEREF _Toc22895 2 HYPERLINK \l _Toc20104 2玉米脱粒机总体结构 PAGEREF _Toc20104 3 HYPERLINK \l _Toc28672 3 玉米脱粒机的设计 PAGEREF _Toc28672 5 HYPERLINK \l _Toc32570 3.1 电动机的选择 PAGEREF _Toc32570 5 HYPERLINK \l _Toc21720 3.2