发布时间 : 星期日 文章谷物清选机毕业设计说明书更新完毕开始阅读
****大学毕业设计（论文）
摘要
随着农业机械化的发展，对于农作物种子清选机械的需求也日趋增长，基于摩擦分离清选机理及筛选分级机理，设计出了适用于大豆、红小豆、绿豆等作物清选作业的5XD-2.0 型带式清选分离机,其生产率为2t/h。带式清选分离机在清选带清选过程中，首先将经过初步清选的大豆、红豆、绿豆等作物种子中杂质清除，尤其是对豆类中的碎半豆，虫蚀严重粒的清除达到了很好的清选效果，其次将清选后的大豆输送到分级机构进行分级筛选，并分别筛选出大、小两种豆粒。本设计主要用于清选分级豆类作物，设计中简述了该机的工作原理，主要的技术参数及各部件的设计。
关键词:清选机；带式；分级；多次分离
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****大学毕业设计（论文）
Abstract
Along with the development of agricultural mechanization, agricultural seed cleaning machine also become more mature, based on friction separation and screening grading mechanism. cleaning mechanism was studied and designed for soy, red bean, mung bean crops, such as cleaning homework 5 XD - 2.0 type belt cleaning classifier, its productivity is 2 t/h. Belt cleaning classifier in the process of cleaning with cleaning, will first after the initial cleaning of soybean, red bean, mung bean crops such as seed, impurity removal, especially pieces of beans , insect damage serious particle removal achieved very good cleaning effect, the second after cleaning the soybeans to the classifiers classification screening, and screening largeand small two kinds of pea. This design is mainly used for cleaning grade soybeans, introduced in the design of this machine working principle, main technical parameters and the design of the parts.
Key words: Qing separator；Belt；Grade；Multiple separation
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****大学毕业设计（论文）
目录
摘要 ------------------------------------------------------------------------------------------------- I Abstract ------------------------------------------------------------------------------------------ II
第 1 章 绪论 ----------------------------------------------------------------------------------- 1
1.1 谷物清选机发展及现存问题 ------------------------------------------------------ 1 1.1.1发展谷物清选机的目的------------------------------------------------------------------ 1 1.1.2清选机发展历程和现存的问题 -------------------------------------------------------- 1
1.2 国内外现状 --------------------------------------------------------------------------- 2 1.2.1国内现状 ------------------------------------------------------------------------------------ 2 1.2.2国外现状 ------------------------------------------------------------------------------------ 3
1.3 本章小结 ------------------------------------------------------------------------------ 3 第 2 章 清选机的基本结构 ----------------------------------------------------------------- 4
2.1 清选机种类及各类型原理 --------------------------------------------------------- 4 2.1.1清选机种类 --------------------------------------------------------------------------------- 4 2.1.2各类型清选机原理 ------------------------------------------------------------------------ 4
2.2 带式谷物清选机 --------------------------------------------------------------------- 5 2.2.1基本结构及功能 --------------------------------------------------------------------------- 5 2.2.2主要技术参数 ------------------------------------------------------------------------------ 7 2.2.3主要计算参数 ------------------------------------------------------------------------------ 7 2.2.4带式清选机工作原理 --------------------------------------------------------------------- 7
2.3 本章小结 ------------------------------------------------------------------------------ 8 第 3 章 主要部件的设计与选取 ----------------------------------------------------------- 9
3.1 带选分离机主要参数计算 --------------------------------------------------------- 9 3.1.1清选带的输送能力 ------------------------------------------------------------------------ 9 3.1.2清选带的宽度计算 ---------------------------------------------------------------------- 10 3.1.3清选能力的计算 ------------------------------------------------------------------------- 11 3.1.4清选带不打滑时的条件---------------------------------------------------------------- 11
3.2 斗式提升机的设计 ---------------------------------------------------------------- 12 3.2.1斗式提升机的主要特点---------------------------------------------------------------- 12 3.2.2主要类型及结构 ------------------------------------------------------------------------- 12
****大学毕业设计（论文）
3.2.3工作原理 ---------------------------------------------------------------------------------- 13 3.2.4提升机主要性能参数 ------------------------------------------------------------------- 14 3.2.5提升机料斗的选用 ---------------------------------------------------------------------- 15
3.3 螺旋输送器的设计 ---------------------------------------------------------------- 16 3.3.1主要特点及应用范围 ------------------------------------------------------------------- 16 3.3.2螺旋输送器的主要结构---------------------------------------------------------------- 17 3.3.3螺旋输送器的主要性能参数 --------------------------------------------------------- 19
3.4 圆筒筛分级器的设计 ------------------------------------------------------------- 19 3.4.1主要工作参数 ---------------------------------------------------------------------------- 20 3.4.2圆筒筛分级器的主要结构 ------------------------------------------------------------ 20
3.5 带式清选机的其他零部件 ------------------------------------------------------- 21 3.5.1清选带的选择 ---------------------------------------------------------------------------- 21 3.5.2分粮器的选择 ---------------------------------------------------------------------------- 21
3.6本章小结 ------------------------------------------------------------------------------- 21 第 4 章 主要传动系统的计算 ------------------------------------------------------------ 23
4.1 电机的选择 ------------------------------------------------------------------------- 23 4.2带传动的设计计算 ------------------------------------------------------------------- 25 4.3滚子链传动的设计计算 ------------------------------------------------------------ 28 4.4本章小结 ------------------------------------------------------------------------------- 32 结论 ----------------------------------------------------------------------------------------------- 33 参考文献----------------------------------------------------------------------------------------- 34 致谢 ----------------------------------------------------------------------------------------------- 36