摘     要

保护性耕作是国际农业技术发展的重要趋势，秸秆还田技术是机械化保护性耕作中关键的一项技术。使用机械化秸秆还田技术可以有效地解决农忙期间争农时、争劳力的矛盾，有力推动秸秆还田的农业全程机械化进程，避免由于焚烧秸秆产生的环境污染。

本研究设计了一种高效、自动化、多样化的小型玉米秸秆粉碎机。该粉碎机采用了先进的机械设计和液压传动技术，实现了自动化和高效化的粉碎过程。同时，通过引入多种传感器和执行器，实现了机器的远程监控和自动控制，提高了生产效率和产品质量。此外，该粉碎机还采用了节能技术和优化措施，降低了能源消耗和环境污染。通过实验和现场测试，验证了该粉碎机的性能和可靠性。本研究对于促进农业废弃物的再利用和提高农业生产效益具有重要意义，同时也为相关领域的技术创新提供了有益的参考。

关键词：小型玉米秸秆粉碎机、机械设计、液压传动、CAD。

ABSTRACT

Conservation tillage is an important trend in the development of international agricultural technology, and straw returning technology is a key technology in mechanized conservation tillage. The use of mechanized straw returning to the field technology can effectively solve the contradiction between competing for agriculture and labor during the busy farming period, effectively promote the whole agricultural mechanization process of straw returning to the field, and avoid the environmental pollution caused by straw burning. In this study, an efficient, automated and diversified small corn straw grinder was designed. The crusher adopts the advanced mechanical design and hydraulic transmission technology to realize the automatic and efficient crushing process.

At the same time, by introducing a variety of sensors and actuators, we realize the remote monitoring and automatic control of the machine, and improve the production efficiency and product quality. In addition, the grinder also adopts energy-saving technology and optimization measures to reduce energy consumption and environmental pollution. The performance and reliability of the grinder are verified through experiments and field tests. This study is of great significance for promoting the reuse of agricultural waste and improving the agricultural production efficiency, and also provides a useful reference for technological innovation in related fields.

Key words: small corn straw shredder, mechanical design, hydraulic transmission, CAD.

目    录

摘     要

ABSTRACT

目    录

1引言

1.1玉米秸秆粉碎机设计的背景

1.2玉米秸秆粉碎机设计的目的及意义

1.3国内外研究现状及发展趋势

1.4研究主要内容

2总体结构及基本参数的确定

2.1总体结构

2.2工作原理

2.3拖拉机的选择

2.4基本参数计算以及各轴功率、转矩分配

2.4.1基本参数的计算

2.4.2 各轴的功率分配

2.4.3 各轴的输出转矩

2.5玉米秸秆粉碎机主要参数

3传动部分主要零件设计

3.1带轮主要参数的计算和结构的确定

3.1.1几何尺寸的确定

3.1.2 V带轮的材料，结构的确定

3.1.3大、小动带轮的具体尺寸

3.2锥齿轮的几何计算和说明

3.2.1选定齿轮参数

3.2.2按齿面接触强度进行初步设计

3.2.3几何尺寸的计算

3.2.4校核齿面接触疲劳强度

3.2.5校核齿根弯曲疲劳强度

3.3 轴的设计与校核

3.3.1轴的材料选择和最小直径估算

3.3.2输入轴的结构设计

3.3.4输出轴的结构设计

3.3.5输出轴上的载荷与校核

4主要工作部件的设计

4.1秸秆粉碎刀辊工作原理

4.2甩刀的排列方式

4.3甩刀的选择

5总 结

主要参考文献

致     谢