车载式高空作业平台的结构设计论文

本课题首先对国内外高空作业车的发展进行了概括，提出了发展中的不足，简要介绍了高空作业车的组成，然后对目前国内生产技术不完善的混合臂和伸缩臂式高空作业车的关键结构进行了设计，同时对工作斗调平技术和液压系统等关键技术进行了研究分析。重点研究了伸缩臂的结构、运动特点，并对其进行了强度校核。根据高空作业车安全性要求高，工作幅度大，结构复杂等特点，提出了工作臂、副车架以及工作斗调平机构的研究设计方法。该课题以混合臂式高空作业车为研究对象，详细阐述了伸缩臂的结构设计、变形研究；副车架结构设计、工作稳定性分析；高空作业车的工作斗调平系统的研究分析；液压系统的设计计算。课题采用积分法对伸缩臂结构进行应力分析、变形分析。最后，对研究分析结果进行了试验和验证，将试验结果和理论分析结果进行了对比，通过对比分析进一步验证了本文提出的设计方法，对于同类型高空作业车研究计算，具有一定的参考价值。

关键词：高空作业车；结构设计；调平系统研究；液压缸

This paper arranged as follows. The first part is the summary of the development of aerial working platform at home and abroad, and put forward some shortages during the development. There is a brief introduction of the component parts of the aerial working platform. This paper introduces a new design proposal of the domestic production technology of mixing arm and telescopic arm aerial working platform. Meanwhile, the analysis can also be seen in the working bucket leveling, hydraulic systems and other key technology. This paper mainly focuses on the telescopic structure, movement characteristics, and its strength check. According to the special requirements of aerial vehicles because of the high security, large in range and the complicated structure, the special design was used in the working arm, subframe and bucket leveling institutions. The subject is based on the study of mixing arm of aerial working platform. The subject describes the structural design of the telescopic boom in detail, and analysis the design of subframe structure design and the job stability. The aerial working platform bucket leveling system analysis and hydraulic syetem design are also mentioned here.the subject adopts integration method on the telescopic structure stress analysis and deformation analysis. The results of research and analysis are also compared in this part. The new design method is created through comparative analysis. And it is an useful guideline for the same type of aerial working platform.

Key words: Aerial working platform; Structure design; The research of leveling system; The hydraulic cylinder

目录

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

1.1本课题的研究内容和意义 (1)

1.1.1课题研究背景 (1)

1.1.2 课题研究的意义 (1)

1.2高空作业机械的国内外发展概况 (1)

1.2.1高空作业机械的国外发展状况 (1)

1.2.2高空作业机械的国内发展状况 (2)

1.3高空作业车的组成 (2)

1.3.1专用底盘 (2)

1.3.2工作臂架 (3)

1.3.3三维全旋机构 (3)

1.3.4电气与液压系统 (3)

1.3.5安全装置 (3)

1.4课题研究的内容 (4)

2伸缩臂结构分析 (5)

2.1伸缩臂的结构 (5)

2.2工况分析 (6)

2.3伸缩臂强度计算分析 (6)

2.3.1 危险工况1计算 (7)

2.3.2 危险工况2计算 (7)

2.4伸缩臂变形计算 (8)

2.4.1 力学模型的建立 (8)

2.4.2 弹性位移的计算 (9)

2.4.3 计算结果 (12)

2.5伸缩臂强度校核 (12)

2.5.1计算基本臂臂的截面尺寸 (14)

2.5.2对下臂进行正应力校核 (15)

2.6本章小结 (16)

3副车架结构及分析 (17)

3.1副车架结构 (17)

3.2支腿反力的计算 (17)

3.3转台回转系统 (21)

3.4本章小结 (22)

4工作斗调平机构的研究 (23)