1300T全自动双向液压砖机的结构优化设计

发布时间：2018-06-13 20:59

本文选题：液压砖机 + 现代设计方法　；参考：《南京理工大学》2016年硕士论文

【摘要】：随着国家对新型墙材产业的鼓励支持,液压砖机正向大型化、高精度和自动化方向发展。针对大型液压砖机对于结构轻量化的要求,本文采用现代设计方法,研制1300T全自动双向液压砖机。首先对液压砖机的需求进行分析,确定总体设计方案,并采用现代设计方法完成对上横梁、下横梁、主油缸等部件的结构设计。然后采用ANSYS对各主要部件的强度和刚度进行校核,分析结果表明部件的刚度和强度均符合设计要求。针对下横梁材料过剩、结构笨重的问题,采用DesignXplorer优化模块,对下横梁进行轻量化设计,优化后的下横梁减重10.21%,且应力和变形的分布更加合理,从而降低成本。为了解决主油缸疲劳损坏的问题,通过疲劳寿命分析,得到应力集中是影响主油缸寿命的主要因素,并在此基础上,提出一种外斜直线圆角过渡线,使主油缸的寿命达到设计要求。为了探索工作频率和外界环境对液压砖机的影响,对机身进行模态分析,由前六阶的振型分析可知,机身中部的刚度较弱,在分析了提高刚度方法的基础上,提出一种加强块结构,一定程度上提高了整机的稳定性。最后根据设计结果制作样机,现场调试及试运行表明：该液压砖机运行平稳,压制的砖坯符合生产要求,本文的研究成果对实际工程设计有一定的参考价值。
[Abstract]:With the encouragement and support of the new wall material industry, hydraulic brick press is developing towards large scale, high precision and automation. Aiming at the requirement of lightweight structure of large hydraulic brick press, this paper develops 1300T automatic bidirectional hydraulic brick machine with modern design method. Firstly, the requirements of hydraulic brick press are analyzed, and the overall design scheme is determined, and the structural design of upper beam, lower beam and main cylinder is completed by modern design method. Then the strength and stiffness of the main components are checked by ANSYS, and the results show that the stiffness and strength of the components meet the design requirements. Aiming at the problem of material surplus and bulky structure of the lower beam, the design Xplorer optimization module is used to design the lower beam lightweight. The weight of the optimized lower beam is reduced by 10.21, and the distribution of stress and deformation is more reasonable, thus reducing the cost. In order to solve the problem of fatigue damage of main cylinder, through the analysis of fatigue life, it is concluded that stress concentration is the main factor affecting the life of main cylinder. The life of the main cylinder meets the design requirements. In order to explore the influence of working frequency and external environment on the hydraulic brick press, the modal analysis of the fuselage is carried out. According to the analysis of the first six vibration modes, the stiffness of the middle part of the fuselage is weak. Based on the analysis of the method of improving the stiffness, A kind of strengthening block structure is proposed, which improves the stability of the whole machine to some extent. Finally, the prototype is made according to the design results, and the field debugging and trial operation show that the hydraulic brick press runs smoothly and the pressed brick blank meets the production requirements. The research results of this paper have certain reference value for the practical engineering design.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TH137.9

【引证文献】