大豆滚筒清选机传动结构设计

本科毕业论文

题目：大豆滚筒清选机传动结构设计

学生姓名届2016

学院机械工程专业机械设计制造及其自动化指导教师职称助教

下达任务日期2015年12月1日

摘要

大豆滚筒清选机作为农业机械的一种，现在已经越来越普遍地应用到农业的大生产中。国内大豆滚筒清选机的研发及制造要与全球号召的高效经济、安全稳定主题保持一致。近期对机械行业中大豆滚筒清选机的使用情况进行了调查，发现在农业机械行业中，对于大豆等农作物的清选，如果在清选时使用临时设备清选，不但劳动强度太大而且工作效率极低，所以设计一个专用的大豆滚筒清选机势在必行。

本文运用大学所学的知识，提出了大豆滚筒清选机的结构组成、工作原理以及主要零部件的设计中所必须的理论计算和相关强度校验，构建了大豆滚筒清选机总的指导思想，从而得出了该大豆滚筒清选机的优点是高效，经济，并且运行平稳的结论。

关键词：大豆滚筒清选机；农业机械；设备；高效

ABSTRACT

With development of all kind of science technology and global economy, F manipulator is a automated 16 devices that can mimic the human hand and arm movements to do something，aslo can according to a fixed procedure to moving objects or control tools. It can replace the heay labor in order to achieve the production mechanization and automation, and can work in dangerous working environments to protect the personal safety.

Therefore widely used in machine building, metallurgy, electronics, light industry and atomic energy sectors.The pneumatic part of the design is primarily to choose the right valves and design a reasonable pneumatic control loop, by controlling and regulating pressure, flow atcompress engt hthdirec tionpro cedurework.

The inverted pendulum is a typical high order system, with multi variable, non-line ar, strong-coupling, fleet and absolutely instable. It is representative as an ideal model t o prove new control theory and techniques. During the control process, pendulum can ef fectively reflect many key problems such as equanimity, robust, follow-up and track, the refore.This paper studies a control method of double inverted pendulum . First of all, the mathematical model of the double inverted pendulum is established, then make a contr ol design to double inverted pendulum on the mathematical model, and determine the sy stem performance index weightmatrix , by using genetic algorithm in order to attain the system state feedback control matrix. F the simulation of the system is made by . KEYWORDS：pneumatic manipulator ；cylinder ；pneumatic loop ；Fout degrees of freedom

目录

摘要 ........................................................................................................................... I ABSTRACT................................................................................................................ II 目录 ........................................................................................................................ III 1绪论 (1)

1.1课题的来源与研究的目的和意义 (2)

1.2本课题研究的内容 (3)

1.3滚筒清选机的发展概况 (3)

2大豆滚筒清选机总体结构的设计 (6)

2.1大豆滚筒清选机的总体方案图 (8)

2.2大豆滚筒清选机的工作原理 (10)

2.3机械传动部分的设计计算 (11)

2.3.1电机的选型计算 (12)

2.3.2轴承的设计计算 (14)

2.3.3齿轮传动的设计计算 (14)

2.3.4传动轴的设计计算 (15)

2.3.5键的设计 (16)

3各主要零部件强度的校核 (17)

3.1机架的设计与校核 (19)

3.2轴承强度的校核计算 (20)

4大豆滚筒清选机中主要零件的三维建模 (20)

4.1电机的三维建模 (21)

4.2滚轮的三维建模 (22)

4.3滚筒的三维建模 (22)

4.4大豆滚筒清选机的三维建模 (23)

结论 (24)

致谢 (25)

参考文献 (26)