农作物秸秆颗粒成型机的机构设计

摘  要

通常利用农作物秸秆颗粒成型技术，把那些松散细碎或者无定型的秸秆挤压成为形状规则且又质地紧密的成型燃料，这统称为秸秆压缩。当秸秆挤压成为颗粒后，它的能量密度大幅提升，燃烧特性会较成型之前有大幅改善。秸秆批量生产的重点是有性能优越的秸秆压缩机。首先，秸秆压缩的产量主要由秸秆成型机的颗粒效率决定。再者，压缩成本的增高是由成型机能耗过多造成的。因此，秸秆颗粒成型行业的首要课题是新型秸秆成型技术和设备的研究和发展。本文的设计内容为研究秸秆颗粒成型机在国内外应用的现状。根据研究结果，仔细分析比较现有的颗粒成型机，采纳不同结构的优点，再设计成型机的最佳方案。确定最佳设计方案后，对重要部件如：轴承、电动机、减速器、连接轴等进行计算并选型，再对其进行应力校核。运用Solidworks对秸秆颗粒成型机进行三维建模是本次工作的最后一步。本次设计的农作物秸秆颗粒成型机体积小，能使废弃的资源得到合理利用并能创造经济利益，而且操作非常简单，能够更多的运用到日常生活中，最后他的维护成本也是极低的。

关键词 秸秆；螺旋式；结构设计；复杂性

Structure Design of Grain Forming Machine Straw

Abstract

. Usually the use of crop straw particle molding technology, those loose or broken straw or extruded into a regular shape and compact texture of the molding of fuel, which collectively referred to as straw compression. When the straw is extruded into particles, its energy density is greatly improved, and the combustion characteristics are significantly improved before molding.. First, the yield of straw compression is determined primarily by the particle efficiency of the straw molding machine.Therefore, the straw pellet molding industry's top priority is the new straw molding technology and equipment research and development. The design of this paper is to study the application status of straw granulator at home and abroad. According to the results of the study, careful analysis of the existing particle molding machine, the advantages of different structures, and then design the best molding machine. Determine the best design, the important parts such as: bearings, motors, reducer, connecting shaft, etc. to calculate and select, and then its stress check. The use of Solidworks on the straw particle molding machine for three-dimensional modeling is the last step in this work. The design of the crop straw particle molding machine small size, can make the waste of resources to be rational use and can create economic benefits, and the operation is very simple, can be more applied to daily life, and finally his maintenance costs are very low.

Keywords Straw,screw type,the structuredesign,complexity

目  录

摘要 I

Abstract II

第1章 绪论

1.1 农作物秸秆颗粒成型机发展现状

1.2 农作物秸秆颗粒成型机发展趋势

1.3 研究意义

1.4 研究内容

第2章 秸秆颗粒成型机的结构及成型原理

2.1 农作物秸秆颗粒成型机的特点

2.2 农作物秸秆颗粒成型机设计思路

2.3 秸秆颗粒成型机的结构组成

2.4 颗粒成型机的成型原理

2.5 本章小结

第3章 秸秆颗粒成型机主要零件的设计

3.1 螺杆的设计

3.1.1 螺杆结构设计

3.1.2 确定螺杆的基本参数

3.1.3 螺杆强度校核

3.2 电机减速机的选型计算

3.2.1 电机选择原则

3.2.2 电机输出扭矩

3.2.3 电机功率

3.3 轴的设计

3.3.1 轴径确定

3.3.2 轴的受力分析

3.3.3 弯扭合成强度校核

3.4 皮带选型计算

3.4.1 折叠平型带传动

3.4.2 折叠三角带传动

3.4.3 折叠同步齿形

3.4.4 带传动的功率

3.4.5 强度校核

3.5 出料模具设计

3.6 轴承选型计算

3.7 本章小结

第4章 秸秆颗粒致密成型机三维建模

4.1 Solidworks三维建模技术

4.2 秸秆颗粒致密成型机三维建模

4.3 秸秆颗粒致密成型机

4.4 运动仿真

4.5 本章小结

结   论

致   谢

参考文献

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