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1、 本科毕业设计(论文)全套图纸,加153893706题 目: 旋转式水稻钵苗移栽机构的设计 学 院: 机械与自动控制学院 专业班级: 机械制造及其自动化(4)班 姓 名: 学 号: 指导教师: 浙江理工大学本科毕业设计(论文) 浙江理工大学学位论文独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。除了文中特别加以标注和致谢的地方外,论文中不包含其他人已经发表或撰写过的研究成果,也不包含为获得浙江理工大学或其他教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示谢意。学位论文作者签名: 签字日期: 年 月
2、日学位论文版权使用授权书本学位论文作者完全了解浙江理工大学有权保留并向国家有关部门或机构送交本论文的复印件和磁盘,允许论文被查阅和借阅。本人授权浙江理工大学可以将学位论文的全部或部分内容编入有关数据库进行检索和传播,可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。(保密的学位论文在解密后适用本授权书)学位论文作者签名: 签字日期: 年 月 日导师签名: 签字日期: 年 月 日I摘 要水稻钵苗移栽是一种利用钵盘育秧的水稻移栽技术,是水稻种植过程中的重要环节。水稻的钵盘育秧充分保留了秧苗生长的营养土质,植伤轻、返苗快,使作物提早成熟,且增产增收;移栽充分利用了光热资源,对水稻秧苗有气候的补偿
3、作用,同时有使作物生育提早的综合效益,因此水稻的钵苗移栽可以产生非常可观的经济效益和社会效益。但与其他国家和地区相比,我国水稻种植机械化程度较低,与国内水稻生产的其它环节相比,机械化程度也是最低的。因此研究一种新的水稻钵苗移载机构,对水稻的机械化种植与高产高收具有非常重要的意义。本文通过对国内外的水稻钵苗移栽机构进行对比分析,提出了一种高效率的水稻钵苗移栽机构为旋转式水稻钵苗移栽机构。该水稻钵苗移栽机构由驱动部分与移栽臂两部分构成,其中驱动部分由非匀速间歇传动机构与非匀速传动机构串联组成,移栽臂用于完成机构的取秧、推秧。 本文的研究内容如下:1.根据水稻钵苗移栽的农艺特性与工作轨迹的要求,确定
4、了以椭圆不完全非圆齿轮行星轮系为传动机构的设计方案,该旋转式传动机构平稳性好、效率高。2.分析了该水稻钵苗移栽机构的工作原理,并对机构进行运动学建模与传动特性分析。3通过水稻钵苗移栽机构的辅助分析与优化软件,对该机构进行参数优化,最后得到一组较优的结构参数:a=23.069mm,k=0.994,=291,=6,=29,0=-39,S=152mm.4.根据机构优化后的结构参数,在CAD2008软件中对水稻钵苗移栽机构进行整体的结构设计与各零部件的二维设计。5.在ug8.0三维实体建模软件中完成各零部件的建模与机构的装配。关键词:水稻钵苗移栽;行星系移栽机构;椭圆不完全非圆齿轮;参数优化;设计;P
5、arameter Optimization and Design of Rotary Rice Bowl Seedling Transplanting Mechanism AbstractRice bowl seedling transplanting is a transplanting technology with bowl seedling ,which plays an important part in the process of rice cultivation. The nutrient soil is fully reserved with rice seedling th
6、rough bowl seedling technology ,so it barely hurts seedlings and makes them grow and mature faster, furthermore, it increases rice production;Transplanting takes full advantage of the light and heat resources, which makes climate compensation to rice seedlings and shifts crop fertility to an earlier
7、 date,Therefore the rice bowl seedling transplanting can produce substantial economic and social benefits. However, compared with other countries and regions, the mechanization level of rice cultivation in China is relatively low, and the degree of mechanization is also the lowest compared to other
8、domestic rice production processes.Therefore the study of a new rice bowl seedling transplanting mechanism has a very important significance in mechanized cultivation and high-yielding of rice .Through comparative analysis of rice bowl seedling transplanting mechanisms at home and abroad, this paper
9、 comes up with a new type of rice bowl seedling transplanting mechanism with which the transplanter can achieve high efficient transplantingrice bowl seedling transplanting mechanism of planetary gear train with ellipse gears and incomplete non-circular gear. The rice bowl seedling transplanting mec
10、hanism includes two parts : drive part and transplanting arms ,the drive part consists of non-uniform intermittent transmission and non-uniform transmission mechanism, and the transplanting arms are used for the completion of fetching and pushing seedlings.This transplanting mechanism has applied fo
11、r inventive patent (application number : 201210344077.1)and utility model pantent (patent number: ZL201220474441.1) is authorized. The main content of this paper is listed as bellow:1.According to the requirements of the agronomic characteristics and work trajectory of rice bowl seedling transplanti
12、ng, invent the rice bowl seedling transplanting mechanism of planetary gear train with ellipse gears and incomplete non-circular gear, The rotary drive mechanism has a good stability and high efficiency.2.Analyze the work principle of the rice bowl seedling transplanting mechanism ,build kinematics
13、model and analyze transmission characteristics of this mechanism. 3.Through the software of aided analysis and optimization of rice bowl seedling transplanting mechanism, search a group of structure parameters: a = 23.069mm, k = 0.994, = 291, = 6 , = 29 , 0 = -39 , S = 152mm.4.According to the optim
14、ized structure parameters of the mechanism, design the overall structure and complete two-dimensional drawings of all parts in CAD2008. 5.Establish the three-dimensional model of all parts of this rice bowl seedling transplanting mechanism and complete the assembly in ug8.0。Keywords: Rice bowl seedling transplanting;transplanting mechanism of planetary gear train; ellipse gears- incomplete non-circular gear;parameter optimization;design目 录摘 要2Abstract2第一章 绪论71.1 本文研究目的与意义71.2 水稻钵苗移栽机构的发展概况81.2.1 国外发展概况81.2.2 国内发展概况101.3 研究目标与方案实现131.3.1 研究目标141.3.2 实现方案141.4 本文的工