设计描述：

文档包括:
Word版说明书一份，28页，约13000字
任务书一份
开题报一份

CAD版本图纸，共9张

目    录

摘要 …………………………………………………………………………………1
关键词 ………………………………………………………………………………1
1  前言………………………………………………………………………………2
1.1  立题依据、目的及意义…………………………………………………2
1.2  国内外研究现状…………………………………………………………3
2  系统的设计………………………………………………………………………4
2.1  挑膜机构基础设计的理论分析…………………………………………4
2.2  整体方案的设计与分析…………………………………………………5
3  工作原理及有关理论分析………………………………………………………6
3.1  起膜轮的设计原理………………………………………………………6
3.2  脱膜板的设计原理………………………………………………………6
3.3  送膜轮的设计原理………………………………………………………7
4  传动方案的设计…………………………………………………………………8
4.1  动力机的选择……………………………………………………………8
4.2  动力传动部分的设计方案………………………………………………9
5  关键零件尺寸的设计及计算……………………………………………………11
5.1  脱膜传膜用海绵轮的设计及计算………………………………………11
5.2  链轮和齿轮………………………………………………………………12
    5.2.1  链轮IV链轮III设计及计算……………………………………12
    5.2.2  链轮I和链轮VII设计及计算…………………………………14
    5.2.3  齿轮的设计及计算………………………………………………15
5.3  轴的设计计算……………………………………………………………14
5.3.2  起膜轴IV的设计与计算 ………………………………………17
5.3.3  送膜轮轴Ⅳ的设计计算………………………………………………21
6  揭膜机构的设计与计算分析 …………………………………………………21
6.1  揭膜机构的结构设计 …………………………………………………21
6.2  挑膜齿的力学分析………………………………………………………23
7  结论………………………………………………………………………………25
参考文献 ……………………………………………………………………………26
致谢 …………………………………………………………………………………27

烟草揭膜培土机揭膜机构的设计

摘  要：烟草揭膜机构的设计旨在解决烟草种植中铺膜容易揭膜难的问题，满足生产效率要求的同时防止

土地的白色污染，既保护了环境又提高了土地利用率。整个机构设计相对以往的设计有了多个方面的创新

，也是特有的针对南方小烟田的揭膜作业机器。整个设计针对挑膜齿、脱膜板和送膜轮进行了分析与论证

，对传动过程进行了详细的设计计算，对关键部件进行了校核分析，并完成了整个烟草揭膜培土机的CAD制

图。设计本身对于实际农业生产具有一定的指导意义。
    关键词：挑膜齿；脱膜板；送膜轮；传动
 
Design of Plastic Film Uncovering Mechanism of Tobacco Plastic Film Uncovering and Hilling

Machine

Abstract:  The Design of Tobacco Plastic Film Uncovering aims to solve the problem of

Membrane easily spread but the plastic film uncovering difficult to sustain in the tobacco

growing , meet the requirements of production efficiency and prevent the land from white

pollution at the same time, it not only protect the environment but also improve the land

utilization. Compared with the previous design there are multiple aspects of innovation in

the whole mechanism design, also the uncovers operating machine is specially designed for the

South small tobacco fields. The whole design aims to analysis and demonstration the membrane

teeth pick, take off the film board and film feeding wheels ,also it carried out a detailed

design calculations  to the transmission process and check and analysis key components, and

has completed CAD drawing of the whole Tobacco Plastic Film Uncovering. The Design itself has

certain directive significance for the practical agricultural production.
Key Words: removing plastic films tooth; de-film board; film-transporting wheel; transmission