直臂式蜘蛛型高空作业平台底盘设计分析

发布时间：2018-07-06 14:13

本文选题：高空作业平台 + 履带底盘　；参考：《大连理工大学》2012年硕士论文

【摘要】：本课题根据公司产品开发计划和市场需求,旨在研发一种新型直臂式蜘蛛型高空作业平台,使我公司继续保持在平台产品领域的国内领航地位,开拓更广阔的市场。本文首先对国内外先进机型底盘技术进行研究分析,然后结合实际项目的设计需要,设计出蜘蛛型高空作业平台履带式底盘底架和蜘蛛式支腿。根据相关标准,计算支腿反力,并运用MATLAB软件绘制了支腿反力变化规律曲线。结果表明：当整机处于经常使用的工作区域内(支腿摆角6=45°)时,支腿受到的反力值均大于0,与国标GB/T9465-2008中对支腿反力大于0的整机稳定性要求相符合。支腿反力小于0的工作区问比较特殊,属于狭窄区域特殊支撑,可以通过加强电控方面的设计从而限制工作平台工作范围,禁止进入该区域工作,使整机工作安全,满足稳定性要求。在支腿反力分析计算的基础上,确定了履带式底盘底架受力的典型工况和蜘蛛支腿的受力危险工况,然后对履带式底盘底架和蜘蛛式支腿进行结构静强度分析计算。对底盘底架和蜘蛛式支腿用ANSYS有限元软件进行建模、网格划分、边界条件处理、求解等,得到了底架和支腿的应力云图和位移云图。结果表明：底架和支腿在强度方面达到了设计要求,其结构设计也是合理的。为最终设计出适应性强、满足设计要求的直臂式蜘蛛型高空作业平台底盘和公司系列化产品的开发提供参考依据。应用电测量方法对直臀式蜘蛛型高空作来平台底架和支腿结构进行应力测试,得到较为准确的应力值。为验证有限元分析计算结果的正确与否,将应力测试结果与有限元分析计算结果进行了对比。结果表明：底架和支腿强度符合设计要求,对底架和支腿的静力学分析结果正确、方法可行,为进一步完善结构和优化设计提供参考依据。
[Abstract]:According to the company's product development plan and market demand, this project aims to develop a new type of straight arm spider aerial work platform, so that our company can continue to maintain its domestic navigation status in the platform product field and open up a broader market. In this paper, the chassis technology of advanced models at home and abroad is studied and analyzed, and then the crawler chassis and spider leg are designed according to the design requirements of actual projects. According to the relevant standards, the reaction force of the leg is calculated, and the curve of the law of the reaction force of the leg is drawn by using MATLAB software. The results show that when the whole machine is in the working area which is often used (the swing angle of the leg is 645 掳), the reaction force of the leg is greater than 0, which is consistent with the stability requirement of the whole machine in GB / T / 9465-2008 when the reaction force of the leg is greater than 0. The working area where the reaction force of the leg is less than 0 is special and belongs to the special support in the narrow area. It can limit the working range of the working platform by strengthening the design of electric control, and prohibit the work from entering the area, so as to make the whole machine work safely. Meet the stability requirements. Based on the analysis and calculation of the reaction force of the supporting leg, the typical working conditions of the crawler chassis and the dangerous condition of the spider supporting leg are determined, and then the structural static strength analysis and calculation of the crawler chassis and the spider supporting leg are carried out. The bottom frame and spider leg are modeled by ANSYS finite element software, the grid is divided, the boundary condition is treated and solved, and the stress cloud diagram and displacement cloud diagram of the underframe and the supporting leg are obtained. The results show that the underframe and leg reach the design requirements in strength, and the structure design is reasonable. It provides a reference basis for the design of the chassis of the vertical arm spider type aerial work platform and the series products of the company which have strong adaptability and meet the design requirements. The electric measurement method is used to measure the stress of the platform underframe and the supporting leg structure of the straight hip spider type high altitude working platform, and the more accurate stress values are obtained. In order to verify the correctness of the finite element analysis results, the stress test results are compared with the finite element analysis results. The results show that the strength of the underframe and the supporting leg meet the design requirements, the results of statics analysis of the underframe and the supporting leg are correct, and the method is feasible, which provides a reference for further improving the structure and optimizing the design.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH211.6

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