2BJ-6型小麦精密播种机优化设计

2BJ-6型小麦精密播种机优化设计


 2BJ-6型小麦精密播种机优化设计
摘要
“保护生态环境,实现可持续发展”现在已经成为我们国家在谋求经济快速发展过程中所要遵循的基本方针。面对土地沙漠化面积的迅速扩大和沙尘暴的肆虐一年更盛一年,国家除了实施大规模的防沙治沙工程和全面退耕还草的重大举措之外,在农业方面则一直在积极倡导和推广应用保护性耕作技术。
 2BJ-6型小麦精密播种机采用的是“动力圆盘断草、与动力圆盘贴合的夹持式开沟器同位分层播种” 在已覆有秸杆的地中能一次性完成行方向秸杆切断、同位分层播种和中后镇压等多项作业的保护性耕作机具。
本文设计了一种 2BJ-6型小麦精密播种机,能够一次完成开沟、精密播种、复土、镇压等多项作业种植机具。整机质量:260kg,配套动力:13.2-22kw,播种行数:小麦6行,行距:25cm,工作效率:0.3-0.4hm2/h,后置液压全悬挂,精密播种小麦。配套动力功率计算后确定。具体设计内容如下:
1.通过查阅有关资料和市场调研,收集信息,了解我国小麦精密播种机现状,弄清本课题的研究目的和意义,完成开题报告。
2.确定总体方案及整机性能参数,设计绘制小麦精密播种机总装图。
3.进行传动设计,确定工作部件运动参数,计算功率消耗,确定配套动力。
4.设计绘制施肥播种装置、1张零号总体布置图、1张部装图和若干零件图。
关键词:保护性耕作机具;开沟器; 2BJ-6型小麦精密播种机

Abstract
'Protecting the ecological environment and achieving sustainable development' has now become the basic policy that our country should follow in the process of rapid economic development. In the face of the rapid expansion of land desertification area and the year of a year of sandstorm, the country has been actively advocating and promoting the application of conservation tillage technology, in addition to the major measures to implement large-scale sand control and sand control projects and complete the return of farmland to grass.
The 2BJ-6 type wheat precision planter is a protective tillage machine with 'power disc weeds and a clamped ditcher fitted with a dynamic disc in the same position.' in the ground covered with straw, it can complete a number of jobs, such as straw cutting, sowing in the same position and repressing in the post.
In this paper, a 2BJ-6 precision wheat planter is designed, which can complete a lot of planting machines such as furrow, precision seeding, soil reclamation and compaction. Whole machine quality: 260kg, supporting power: 13.2-22kw, sowing line number: 6 lines of wheat, line distance: 25cm, work efficiency: 0.3-0.4hm2/h, rear hydraulic full suspension, precision seeding wheat. After the calculation of the supporting power power, it is determined. The specific design contents are as follows:
1. through consulting the relevant information and market research, collecting information, understanding the present situation of China's wheat precision seeder, making clear the purpose and significance of the research, and completing the issue report.
2., determine the overall plan and the performance parameters of the whole machine, and design and draw the general assembly diagram of the wheat precision seeder.
3., carry out the transmission design, determine the motion parameters of the working parts, calculate the power consumption and determine the supporting power.
4. design and draw fertilizing and sowing device, 1 zero general layout, 1 part layout and parts drawing.
Key words: protective farming machine, ditching device, 2BJ-6 type precision seeder for wheat.

 

 

目       录
1 绪论 1
1.1 引言 1
1.2 背景及原理介绍 1
1.3 论文的主要工作和意义 2
1.4 总体方案的确定 3
2 动力性能的设计与校核 4
2.1 丰收180型拖拉机的配套适应性计算 4
2.2 拖拉机液压提升能力计算 6
2.3 机组操向稳定性计算 7
2.4 坡道极限倾翻角计算 8
3 主要部件的设计 9
3.1 轴的设计 9
3.1.1 传动轴的设计 9
3.1.2 轴的计算与校核 10
3.1.3 键的选择与校核 16
3.2 链轮的设计 18
3.2.1 链轮的计算 18
3.2.2 链轮的材料 25
3.3链的选择 25
3.4 开沟器的设计 25
3.5 侧传动箱的设计 26
3.5.1 链轮材料的选择 28
3.6 播种部分的传动设计 28
3.6.1 传动方式的选择 28
3.6.2 链传动比 29
3.7 播种施肥器总成 29
4 总结 30
致  谢 31
参考文献 32
附录 33
附录1 33
附录2 40
 参考文献
[1] 范思冲主编,画法几何及机械制图,机械工业出版社,2003.8
[2] 《机械制造基础课程设计》,机械工业出版社,2003.8
[3] 沈敏德主编 ,机械制图与AutoCAD2000习题集, 机械工业出版社,2001 .8
[4] 机械设计手册编委会,机械设计手册,单行本,滚动轴承,机械工业出版社,2007.3
[5] 刘鸿文主编 ,材料力学,高等教育出版社,2005.4
[6] 周宏莆主编,机械制造技术基础,高等教育出版社,2006.12
[7] 单丽云,强颖怀,张亚非 编,工程材料,中国矿业大学出版社,2000.8
[8] 邱宣怀主编,机械设计,第四版,高等教育出版社,1997
[9] 孙桓 陈作模 主编,机械原理,高等教育出版社,2000
[10] 机械工程手册编辑委员会,机械工程手册(拖拉机),机械工业出版社,1978
[11] 北京轴承研究所,简明滚动轴承手册 ,中国农业机械出版社,1982
[12] 吴宗泽,机械设计课程设计手册,高等教育出版社,1999
[13] (美)Hindhede, Zimmerman, Hookins, etal. Machine Design Fundamentals-A Pratical Approach, John Wiley & Sons, 983
[14] 许镇宇主编,机械零件 ,人民教育出版社,1982

 

暂时没有评论

真实

多重认证,精挑细选的优质资源 优质老师。

安全

诚实交易,诚信为本。

保密

所有交易信息,都为您保密。

专业

10年专业经验,10年来帮助无数学子。