机械手式水稻钵秧行抛机进给系统设计

毕业设计（论文） 机械手式水稻钵秧行抛机进给系统设计

目 录

摘 要 ..................................................... 3 ABSTRACT ..................................................... 4 1、本课题的研究和实用价值 .................................... 6 1.1、国内水稻种植业发展状况 .............................. 7 1.1.1、机械插秧 .......................................... 9 1.1.2、机械抛秧 .......................................... 9 1.1.3、机械直播 ......................................... 10 1.2、国外水稻种植业发展状况 ............................. 11 1.3、国内水稻抛秧机生产状况 ............................. 13 1.3.1、国内企业 ......................................... 13 1.3.2、合资或外资企业 ................................... 14 1.3.3、外部市场环境 ..................................... 16 2、水稻抛秧机的方案设计 ..................................... 17 2.1、水稻抛秧机的设计要求 ............................... 17 2.2、水稻抛秧机的方案设计 ............................... 18 2.3、工作原理及其动作分解 ............................... 19 3、水稻抛秧机的方案论证 ..................................... 19 3.1、育秧穴盘的设计论证 ................................. 20 3.2、机械手行抛机构工作原理 ............................. 20 3.3、横向进给机构 ....................................... 21

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毕业设计（论文） 机械手式水稻钵秧行抛机进给系统设计

3.4、纵向进给机构 ....................................... 22 3.5、传动部件的选择和分析 ............................... 24 3.5.1、齿轮传动装置 ..................................... 24 3.5.2、带传动 ........................................... 25 3.5.3、链传动 ........................................... 25 3.5.4、蜗杆传动 ......................................... 25 3.6、导轨的选择与设计 ................................... 26 3.7、总体方案的选择 ..................................... 40 4、设计计算 ................................................. 40 4.1、伺服系统传动系统的设计 ............................. 40 4.4.1、降速比的计算 ..................................... 40 4.1.2、惯量计算 ......................................... 41 4.1.3、电动机力矩计算： ................................. 44 4.1.4、机械传动系统的动态分析 ........................... 47 4.1.5、系统增益K的确定 ................................. 48 4.1.6、验算移动部件能达到的最大加速度 .................... 49 5、结构设计过程 ............................................. 49 5.1、方案图的绘制及各部件间的关系 ........................ 49 5.2、传动轴的三维实体设计 ............................... 53 参考文献 ： ................................................ 56

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毕业设计（论文） 机械手式水稻钵秧行抛机进给系统设计

摘 要

农业向产业化方向发展是提高农业经济效益的必然趋势。农业机械是先进的科学技术，是先进的生产工具。用产业化的要求组织发展农业，离不开农业机械。本文结合农业机械化发展的特点，论述了农业机械化在扩大生产规模，提高劳动生产率，促进农产品流通和精深加工转化增值，衔接、引导农民逐步走向国内外大市场，提高农业整体素质和效益等诸多方面推动了农业向产业化方向发展，才能更加有力地推进农业产业化发展。

水稻钵秧行抛机是用于栽植水稻秧苗的机具。结构简单、体积小，使用寿命长。它主要包括送秧机构、传动机构、分插机构、机架和船体等组成。本论文主要是对抛秧机进行总体方案设计，对抛秧机的横向进给、纵向进给、变速箱等进行结构设计与计算；绘制机构总体布局图、纵向进给机构图、横向进给机构图、步进机构图、变速系统展开图、对变速系统中的主要部件进行三维实体设计。

关键词：机械手、水稻行抛机、进给系统

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毕业设计（论文） 机械手式水稻钵秧行抛机进给系统设计 Manipulator type rice bowl seedling line machine feeding

system design

ABSTRACT

Agriculture to develop in the direction of industrialization is an inevitable trend in the improvement of economic efficiency of agriculture.Agricultural machinery is advanced science and technology, advanced production tools.With the requirement of the industrialization of agriculture organization development, cannot leave the farm machinery.In this paper, combining with the characteristics of agricultural mechanization development, discusses the agricultural mechanization in expanding the production scale, improve labor productivity, promoting the transformation of deep processing of agricultural products circulation and value-added, cohesion, guiding farmers gradually towards the big market both at home and abroad, to improve overall qualities and efficiency of agriculture, and many other aspects to promote the development of agriculture to industrialization direction and can more effectively promote agricultural industrialization development.

Rice pot seedling line throwing machine is used for rice seedling planting machine.Simple structure, small volume, long service life.It mainly includes the seedling mechanism, transmission mechanism, mechanism, frame and hull, etc.This thesis mainly is the overall design was carried out on the thin planting machine, for some machine in the feed in longitudinal and transverse feed of structure design and calculation, gearbox, etc;Mapping agency overall layout, vertical feed mechanism diagram, traverse mechanism diagram, step by step for figure, variable speed system expansion plan, the variable speed system of main parts for 3 d entity design.

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