毕业设计（论文）-玉米根茬收获机设计.docx

项目名称：玉米根茬收获机

设计人员：

指导老师：

所在院校：

设计日期：

目录

摘要····················································-1-

绪论·························································-2-

1.1目的意义··················································-3-

1.2玉米根茬基础物理性质······································-3-

1.3国内外研究现状····································-3-

1.4研究内容及方案路线···································-5-

1.4.1主要研究内容·····································-5-

1.4.2研究方案路线···································-6-二．系统总体方案设计·········································-6-

2.1总体结构设计·········································-6-

2.2传动方案的确定··········································-7-

2.3系统的工作原理·····································-8-三．关键部件结构设计···········································-8-

3.1振动式挖掘机构的设计······································-8-

3.2捡拾机构的设计············································-9-

3.3挤压脱土机构的设计·····································-10-

3.4抖动输送机构的设计········································-11-

四．传动参数确定·················································-11-

4.1功率消耗计算·············································-11-

4.2各机构传动参数确定········································-11-

五．各传动部件参数计算·······································-12-

5.1锥齿轮传动设计计算········································-12-

5.2链传动设计计算········································-15-

六根茬收获系统有限元模态分析·····································-18-

6.1模态分析的基本原理·······································-18-

6.2根茬收获系统的有限元模态分析······························-18-

6.2.1有限元实体模型的建立与网格划分·························-18-

6.2.2根茬收获系统的模态分析与计算···························-19-

七．应用前景······················································-19-

八．参考文献······················································-20-

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摘要

21世纪世界工业高速发展，能源成为各个国家争相掠夺的对象，然而地球储存的资源有限，能源问题日益险峻。我国近几年大力发展可持续能源领域，在太阳能，风能