摘 要
由于我国很久以来都是一个以农业为基础的发展中国家，所以农业在经济中占有很高的比例。随着改革开放和我国工业的不断发展，人们逐渐从事了多元化的经济形态。农村劳动力不断减少，这是我国开始大力推行农业机械化、现代化建设。随着我国开始发展家庭农场、小型农场等惊喜，一些先进的机械设备开始进入到日常生活中。目前由于农村劳动资源减少以及对大片晾晒场地的减少，人们对于丰收的零食没有足够的地方进行晾晒，而如果不在一定的时间内使粮食干燥，特别是碰到阴雨天气，就会使粮食出现发霉、发热等现象。在这种情况下，粮食烘干机就出现了。这是一种能够利用电动等动力对粮食进行烘干，确保了丰收的粮食能够快速干燥，提高了抵御自然灾害的能力，提高了粮食的品质，增加了收入，降低了劳动强度。
本次毕业设计就是研究一台粮食烘干机，首先对设计研究的背景和意义进行了分析，了解了烘干机的发展现状，然后对烘干机的机构、组成、原理等进行了解分析学习，最后对烘干机的整体结构进行设计计算，然后对关键零部件进行选择校核，最终形成毕业设计论文。
关键词：粮食烘干机、结构设计、校核
Abstract
Since China has long been a developing country based on agriculture, agriculture occupies a very high proportion in the economy. With the reform and opening up and the continuous development of China's industry, people have gradually engaged in a diversified economic form. The rural labor force has been decreasing continuously. This is the beginning of our country's vigorous implementation of agricultural mechanization and modernization. As China began to develop family farms, small farms and other surprises, some advanced machinery and equipment began to enter everyday life. At present, due to the reduction of rural labor resources and the reduction of large airing fields, people do not have enough places to dry up the snack for the harvest, and if it does not make the grain dry in a certain period of time, especially in the rainy weather, it will cause the grain to be mildew and heat. In this case, the grain dryer appeared. This is a kind of power, which can be used to dry the grain, ensure the grain can be dry quickly, improve the ability to resist natural disasters, improve the quality of grain, increase the income and reduce the intensity of labor.
This graduation design is to study a grain dryer. First, the background and significance of the design research are analyzed, the development status of the dryer is understood, and then the mechanism, composition and principle of the dryer are studied and analyzed. Finally, the overall structure of the dryer is designed and calculated, and then the key zero is made. Select and check the parts and finally form graduation design papers.
Key words: grain dryer, structure design and check
目 录
摘 要
Abstract
第一章 绪论
1.1 课题研究的背景和意义
1.2 国内外研究现状
第二章 总体结构设计
2.1 设计要求
2.2 结构方案设计
2.3 加热烘干方式
第三章 主要零部件的设计
3.1 机架的设计
3.2 定筒的设计
3.3电机的计算选择
3.4 搅拌叶片的设计
第四章 传动轴设计与校核计算
4.1 轴的尺寸设计
4.2 轴的强度校核计算
4.2.1 按扭转强度条件计算
4.2.2轴刚度校核计算
第五章 传动系统设计计算
5.1 传动比的分配
5.2 链轮设计
总 结
致 谢
参考文献
