对称驱动剪式升降平台设计及研究

发布时间：2018-05-18 05:51

本文选题：剪叉升降平台 + 液压同步　；参考：《昆明理工大学》2012年硕士论文

【摘要】：随着我国制造业的高速发展,升降平台已经成为自动生产线上的一个重要环节。企业产能规模的扩大,研究升降平台在生产线有限的空间承受更大的载荷是具有现实的意义。本文主要是研究在铜电解阳极板准备机组受板装置中的升降平台。根据设计和使用要求,首先对目前运用比较广泛的水平驱动剪叉升降平台、铰接单油缸驱动剪叉升降平台两种方案进行运动及力学分析。提出四油缸对称驱动重载剪式升降平台的设计,对该升降平台进行力学分析,得出油缸驱动力只需铰接单油缸驱动剪叉升降平台1/4。若四油缸安装与水平线夹角相等,中间的铰链轴剪切力理论计算为零,非常利于重载情况。其次对液压同步系统分析比较,提出用同步阀液压同步系统来保证四液压缸的同步运动。用SolidEdge对升降平台整体及主要零部件进行三维实体建模,将实体模型导入ANSYS中进行有限元分析。最后对升降平台在起始位置即最差工况下的主体结构进行了有限元强度分析研究。对铰链轴承用弹簧单元进行处理,在满载荷的情况,得出结构应力分布图,整个系统主体结构的应力在190MPa以内。升降平台主要整体结构应力分析后最大值都在45钢屈服应力范围。从分析结果看,均得到了满意的效果,对称驱动重载剪式升降平台整体结构强度符合设计要求。随着我国工业自动化的快速推进,重载升降平台的使用面、服务领域不断扩大。论文的研究方法具有一定的工程实用价值和较广的适用性,它对于同类结构的设计和结构改造有重要的借鉴作用。
[Abstract]:With the rapid development of China's manufacturing industry, lifting platform has become an important part of automatic production line. With the expansion of production capacity scale, it is of practical significance to study the lifting platform to bear more loads in the limited space of production line. This paper mainly studies the lifting platform in copper electrolytic anode plate preparation unit. According to the requirements of design and application, the motion and mechanics analysis of two schemes, which are widely used at present, namely, horizontal driven fork lifting platform and hinged single oil cylinder driven fork lifting platform, is carried out. The design of four-cylinder symmetrical drive heavy load shear lifting platform is put forward, and the mechanical analysis of the lifting platform is carried out. It is concluded that the driving force of oil cylinder only needs to be hinged to single oil cylinder to drive the shear fork lift platform 1 / 4. If the angle between the four cylinder mounting and the horizontal line is equal, the central hinge shaft shear force is calculated to be zero, which is very favorable for heavy loading. Secondly, by analyzing and comparing the hydraulic synchronization system, the synchronous valve hydraulic synchronization system is proposed to ensure the synchronous motion of the four hydraulic cylinders. SolidEdge is used to model the whole and main parts of the lifting platform, and the solid model is introduced into ANSYS for finite element analysis. At last, the finite element strength analysis of the main structure in the starting position, that is, the worst working condition, is carried out. In the case of full load, the stress distribution diagram of the structure is obtained, and the stress of the whole system is within 190MPa. The maximum value of stress analysis of the main integral structure of lifting platform is in the yield stress range of 45 steel. From the analysis results, satisfactory results are obtained, and the overall structural strength of the symmetrical drive heavy load shear lifting platform meets the design requirements. With the rapid development of China's industrial automation and the use of heavy lift platform, the service field is expanding. The research method of this paper has certain engineering practical value and wide applicability, and it has important reference function for the design and reconstruction of similar structures.
【学位授予单位】：昆明理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH211.6

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