小型烟秆切割机的设计【8张图纸】【优秀】【带三维】【机械毕业设计】

您若下载本次文件，将获得（CAD图纸+word文档）源文件哦！

    以下为本次文件的目录及部分图纸截图              

 【需要其他机械类资料可以联系QQ97666224】    

目      录

摘要I

AbstractII

1 引言1

1.1  烟秆切割机构的研究目的和意义1

1.2  目前国内外切割机械的研究现状1

1.2.1  国外切割机械的研究现状1

1.2.2  国内切割机构的研究现状1

1.3  烟草在我国种植的特点2

1.3.1  我国烟草的种植分布2

1.3.2  烟草收割的技术难度2

1.4本文研究的主要内容2

2 切割机构的选择4

2.1  往复式切割器4

2.2  螺旋切割器5

2.3  双圆盘旋转式切割器5

2.4  单圆盘旋转式切割器6

3 烟秆切割机介绍7

3.1  总体结构7

3.2  主要工作原理7

4 设计主参数确定9

4.1  主机动力9

4.2  切割转速确定9

4.3  变速箱传动比的确定11

5 主要机构设计12

5.1  切割机构的设计12

5.2  传动机构的设计12

5.3  强度校核13

5.3.1  转动轴的强度校核13

5.3.2  皮带的强度校核14

6 总结17

致谢18

参考文献19

摘要

本课题设计的是小型烟秆切割机。我国一直是一个农业大国，如今农民的数量依然占了我国人口的五分之三以上。然而，我国的农业规模却相当落后。就如烟秆的收割方式而言，在国外已经可以全程机械化收割的情况下，我国大部分烟秆收割依然采用手工收割方式，效率地下而浪费劳动力。在如今这个快节奏、生产力高度发达的社会中，机械化农业替代手工农业是必然的趋势。本课题就是在这种背景下产生的。

我国的烟秆种植与地形方面与国外有很大的不同，我国的烟秆种植地有大有小，并不规范，这使得国外的高精度高效率的收割设备并不适合我国的国情。我的设计是基于简单实用，经济高效的目标要求下进行的。力图使用最简单有效的结构发挥出适合大部分个体烟草种植农业户使用的机械切割设备。

本文根据设计研究的主要方向及技术要求，介绍了不同烟秆切割结构对切割效果的主要分别和结构的工作原理，利用已有的发动机设备和尺寸参数及切割机用途对切割机结构进行Pro/e三维建模，并对构建完成的切割机进行性能、强度进行综合的分析，证明本次设计的切割结构是合理的。

关键词：烟草；烟秆；切割机构；Pro/e

Abstract

   This topic design a small smoke stem cutting machine. Our country has been an agricultural country, and now the number of farmers still accounts for more than three 5 of the population in our country. However, our country agricultural scale is quite backward. For smoke sticks way of harvest, in foreign countries have been able to fully mechanized harvesting, under the condition of our country most of the tobacco stalk still use manual harvest, harvest efficiency underground and the waste of labor. In today's fast-paced, highly developed social productivity, agricultural mechanization replace manual agriculture is the inevitable trend. This topic is in this context.

   The smoke stem planting and terrain and abroad are very different, our country's tobacco stalk gardens have greatly small, is not standard, which makes foreign high accuracy high efficient harvesting equipment is not suitable for national conditions of our country. My design is based on a simple and practical, economic and efficient of the goals and objectives. Tries to use the most simple and effective structure play is suitable for most individuals to tobacco growing agricultural households use mechanical cutting equipment.

   In this paper, according to the main direction of the research design and technical requirements, this paper introduces the different tobacco stem cutting cutting effect of the main structure and structure respectively the working principle of the use of existing equipment and engine size parameters and cutting machine use Pro/e 3 d modeling was carried out on the cutter structure, and to construct a complete comprehensive analysis of the cutting machine performance, strength, prove that the design of the cutting structure is reasonable.

Key words: tobacco; Smoke stem; Cutting mechanism; Pro/e