文档介绍：学校代码: 10410 序号: 050433 本科毕业设计题目: 脚踏式玉米脱粒机学院:工学院姓名:刘宏宇学号:20050433 专业:机械设计制造及其自动化年级:2005 级指导教师:吴瑞梅老师二 OO 九年五月脚踏式玉米脱粒机 1 摘要本次设计玉米脱粒机工作原理就是利用板齿和脱粒辅助轴之间的相互挤搓实现脱粒,板齿安装在滚筒上,滚筒的主轴通过曲柄连杆机构和脚踏板相连。脱粒辅助轴是用于抵住玉米棒,并利于玉米棒在板齿和辅助轴之间滚动和滑动,从而实现脱粒。本设计重点是曲柄连杆机构的设计,以达到最优工况;滚筒、主轴、板齿和脱粒辅助轴的设计,还有排芯区和喂料装置——漏斗的设计。设计各项参数达到预期目标,脱净率高、破碎率低、经济性好,尤其适合南方小面积种植农户使用。对减轻劳动强度,提高生产效率,减轻农民负担,增加收入有很大的意义。关键词:脱粒机脱粒滚筒脱粒辅助轴漏斗 abstract Design maize sheller operation principle to utilize board tooth and thresh, assist to crowd to rub with the hands and realize threshing each other axle this time, the board tooth is installed on the cylinder, the main shaft of the cylinder links up with the running-board through the crank connecting anization. Thresh, assist axle used for, support, live in maize tobe excellent, benefit maize tobe excellent in board tooth assisting axle roll and slip, thus realize threshing. This design focus is the design ofa crank connecting anization, in order to reach the optimum operating mode; Cylinder, main shaft, board tooth and threshing to assist the design of the axle, still arrange the core district and feed the material device --Design of the funnel. Design every parameter reach re-set target, take rate high, broken rate low, economy is fine, especially suitable for the little area in the South and plant peasant households to use. To lightening labour intensity, improve production efficiency, lighten peasant's burden, increase es and have very great meanings . K eywords: Sheller Cylinder threshing Extracts seeds the auxiliary axis Funnel 脚踏式玉米脱粒机 2 目录引言................................................................................................................................................... 2 一. 玉米脱粒机的工作原理.......................................................................................................... 4 二. 玉米脱粒机驱动机构的型式与最优工况的选择.................................................................. 5 驱动机构的作用与型式..............................................................