液压支架的计算机辅助设计.pdf

硕士学位论文液压支架的计算机辅助设计 The Computer-aided Design of Hydraulic Supports 作者江海波导师程志红教授中国矿业大学二○一四年五月万方数据万方数据中图分类号 TH122 学校代码 10290 UDC 621 密级公开中国矿业大学硕士学位论文液压支架的计算机辅助设计 The Computer-aided Design of Hydraulic Supports 作者江海波导师程志红教授申请学位工学硕士学位培养单位机电工程学院学科专业机械设计及理论研究方向计算机辅助设计答辩委员会主席刘初升评阅人二○一四年五月万方数据学位论文使用授权声明学位论文使用授权声明本人完全了解中国矿业大学有关保留、使用学位论文的规定，同意本人所撰写的学位论文的使用授权按照学校的管理规定处理作为申请学位的条件之一，学位论文著作权拥有者须授权所在学校拥有学位论文的部分使用权，即①学校档案馆和图书馆有权保留学位论文的纸质版和电子版，可以使用影印、缩印或扫描等复制手段保存和汇编学位论文；②为教学和科研目的，学校档案馆和图书馆可以将公开的学位论文作为资料在档案馆、图书馆等场所或在校园网上供校内师生阅读、浏览。另外，根据有关法规，同意中国国家图书馆保存研究生学位论文。（保密的学位论文在解密后适用本授权书）。作者签名导师签名年月日年月日万方数据万方数据 89 学位论文原创性声明学位论文原创性声明本人郑重声明所呈交的学位论文液压支架的计算机辅助设计，是本人在导师指导下，在中国矿业大学攻读学位期间进行的研究工作所取得的成果。据我所知，除文中已经标明引用的内容外，本论文不包含任何其他个人或集体已经发表或撰写过的研究成果。对本文的研究做出贡献的个人和集体，均已在文中以明确方式标明。本人完全意识到本声明的法律结果由本人承担。学位论文作者签名年月日万方数据万方数据论文审阅认定书论文审阅认定书研究生在规定的学习年限内，按照研究生培养方案的要求，完成了研究生课程的学习，成绩合格；在我的指导下完成本学位论文,经审阅，论文中的观点、数据、表述和结构为我所认同，论文撰写格式符合学校的相关规定，同意将本论文作为学位申请论文送专家评审。导师签字年月日万方数据万方数据致致谢谢在本文行将结束之际，首先要感谢我的导师程志红教授。本文的研究工作是在导师的悉心指导下完成的，从论文的选题、研究计划的制定、技术路线的选择以及论文的撰写，各个方面都离不开导师热情耐心的帮助和教导。在硕士研究生阶段的三年来，导师开阔的研究视野、渊博的学术知识、严谨的治学态度、求实创新的科研作风和孜孜不倦的科研精神使我受益匪浅，终生难忘。同时导师还为我的学习和研究工作提供了各种有利的条件，使我能够不断取得学业的进步和学术水平的提高。在此，向导师表示由衷的感谢和诚挚的敬意。感谢实验室的师兄师姐师弟师妹以及曾经给予我帮助的同学们，谢谢他们的支持和启发，实验室的团结友爱、互相协作为我的论文写作创造了一个良好的心理环境。感谢母校中国矿业大学对我的培养，祝愿母校明天会更好最后我要特别感谢我的家人，在生活上他们给予了我无微不至的关心和精神上莫大的支持和鼓励，使我顺利完成了学业，他们是我奋斗的不竭动力，是我前进的坚实基础。万方数据万方数据 I 摘摘要要液压支架作为综采机械化采煤工作面的关键设备，对煤矿安全生产有着重大的影响。传统的液压支架设计方法存在着周期长、费用大等缺点，严重限制了液压支架设计制造企业的发展。随着计算机技术的不断发展和完善，将现代设计方法充分运用到液压支架的设计中，可以很大程度地提高产品的设计效率和设计质量，节约设计成本，而且更利于客户接受。本课题以工程实际应用为出发点，针对液压支架的优化设计工作，在 Visual Basic 集成开发环境下研究开发液压支架计算机辅助设计的集成系统。首先，介绍了现代设计方法及其在液压支架设计中应用的国内外研究现状。其次，对液压支架四连杆机构进行了运动学分析，在比较常用的液压支架结构参数优化方法的基础上，选择复合形法对四连杆机构进行了优化设计。然后，对四柱支撑掩护式支架和两柱掩护式支架分别进行了运动学分析和静力学分析，结合相关理论结果阐述在 VB 环境中，对支架及梁端轨迹进行动态仿真的过程。最后，介绍了液压支架计算机辅助设计原型系统的开发环境和相关工具，以及其软硬件情况，并结合两柱掩护式支架 ZY6800/19/40A 对该系统进行了详细的应用举例。并通过对支架 ZY6800/19/40A 立柱的有限元分析，比较了系统功能的有效性。本课题研究的主要成果是，基于Visual Basic集成开发环境，开发出了专用的液压支架计算机辅助设计系统。该系统可以实现四连杆机构的优化设计、支架的运动分析、受力分析和强度校核四个功能，能将液压支架的分析计算结果以图形和数据报表两种方式实时显示。该设计系统的开发使用可以很大程度上提高设计人员的设计效率，提高企业快速响应市场和客户需求的能力，降低产品的设计周期和开发成本。该论文图 49 幅，表 5 个，参考文献 86 篇。关键词关键词液压支架；现代设计方法；计算机辅助设计；四连杆机构优化；Visual Basic 万方数据万方数据 III Abstract As the key support equipment of fully mechanized coal faces, the hydraulic support has a significant impact on coal mine safety production. There are some deficiencies on traditional design , such as long period and high cost, that limit the development of design and manufacture enterprises of hydraulic supports. With the constant development and improvement of computer technology, it will not only greatly increase design efficiency and product quality and save design costs but also be easily acceptable to customers if we make full use of modern design s into the design of hydraulic supports. Based on engineering practical application and optimization of hydraulic supports, this topic researched and developed a computer-aided design integrated system for hydraulic supports in integrated development environment of Visual Basic. Firstly, the research status of modern design s and its application in the design of hydraulic support was introduced. Secondly, four bar linkage of hydraulic supports was analysed in kinematics. Based on the comparison of common structural parameter optimization s of hydraulic support, the complex was choosed to optimized the four bar linkage. Then, four-column chock-shield hydraulic support and two-column shield hydraulic support were analysed in kinematics and statics, and its analysis results were used into the programming process of VB to guide the motion simulation of hydraulic supports and the end of the beam’s trajectory. Finally, development environment and revelant tools of the computer-aided design prototype system and its hardware and software were presented. ZY6800/19/40, a kind of two-column shield hydraulic support, were choosed to be an example to explain this system in detail. In order to compare the effectiveness of the system, the column of ZY6800/19/40A was taken into finite element analysis. The main outcome of this topic is developing a special computer-aided design system for hydraulic supports based on Visual Basic integrated development environment. The system can achieve the following four functions, optimization of four-bar linkage, kinematic analysis, stress analysis and strength check of hydraulic supports. In addition to these, the analysis results of hydraulic supports can be displayed by two ways, graphics and data reports. The development and use of the design system for hydraulic supports can greatly increase design efficiency improve the ability of enterprises to respond to market and 万方数据 IV customer needs quickly, and reduce products design cycle and development costs. The paper has 49 figures, 5 tables, 86 article references. Keywords hydraulic support; modern design s; computer-aided design; optimization of four-bar linkage; Visual Basic 万方数据 V 目目录录摘要摘要 ........................................................................................................................... I 目录目录 .......................................................................................................................... V 图清单图清单 .................................................................................................................... IX 表清单表清单 ................................................................................................................. XIII 变量注释表变量注释表 ........................................................................................................... XV 1 绪论绪论 ...................................................................................................................... 1 1.1 课题研究背景及意义 ........................................................................................ 1 1.2 液压支架计算机辅助设计的研究现状.............................................................. 2 1.3 本文研究的主要内容 .......................................................................................10 1.4 本章小结 ........................................................................................................... 11 2 液压支架四连杆机构的优化设计液压支架四连杆机构的优化设计 .......................................................................12 2.1 四连杆机构的运动学分析 ................................................................................12 2.2 四连杆机构的优化 ...........................................................................................15 2.3 优化分析的程序设计 .......................................................................................22 2.4 本章小结 ...........................................................................................................23 3 液压支架的运动学分析液压支架的运动学分析 ......................................................................................24 3.1 四柱支撑掩护式支架的运动学分析 ................................................................24 3.2 两柱掩护式支架的运动学分析 ........................................................................29 3.3 梁端点轨迹曲线的绘制 ....................................................................................31 3.4 液压支架的运动仿真 .......................................................................................32 3.5 运动学分析程序设计 .......................................................................................32 3.6 本章小结 ...........................................................................................................33 4 液压支架的受力分析和强度校核液压支架的受力分析和强度校核 .......................................................................34 4.1 四柱支撑掩护式支架的受力分析 ....................................................................35 4.2 两柱掩护式支架的受力分析 ............................................................................42 4.3 强度校核 ...........................................................................................................45 4.4 受力分析和强度校核的程序设计 ....................................................................51 4.5 本章小结 ...........................................................................................................51 5 液压支架计算机辅助设计原型系统及应用液压支架计算机辅助设计原型系统及应用 .......................................................53 万方数据 VI 5.1 系统的开发工具 ...............................................................................................53 5.2 原型系统 ...........................................................................................................56 5.3 立柱的有限元分析 ...........................................................................................70 5.4 本章小结 ...........................................................................................................72 6 总结与展望总结与展望 ..........................................................................................................73 6.1 总结 ..................................................................................................................73 6.2 创新 ..................................................................................................................73 6.3 展望 ..................................................................................................................74 参考文献参考文献 .................................................................................................................75 附录附录 .........................................................................................................................79 作者简历作者简历 .................................................................................................................87 学位论文原创性声明学位论文原创性声明 ..............................................................................................89 学位论文数据集学位论文数据集 ......................................................................................................91 万方数据 VII Contents Abstract ................................................................................................................. III Contents ................................................................................................................ VII List of Figures ........................................................................................................ IX List of Tables ....................................................................................................... XIII List of Variables .................................................................................................... XV 1 Introduction .......................................................................................................... 1 1.1 Research Background and Meaning ..................................................................... 1 1.2 Research Status of Computer-aided Design in Hydraulic Supports ....................... 2 1.3 Contents of the Thesis.........................................................................................10 1.4 Summary ............................................................................................................ 11 2 Optimization of Four-bar Linkage in Hydraulic Support .................................12 2.1 Kinematic Analysis of Four-bar Linkage .............................................................12 2.2 Optimization of Four-bar Mechanism .................................................................15 2.3 Programming of Optimization Analysis ..............................................................22 2.4 Summary ............................................................................................................23 3 Kinematic Analysis in Hydraulic Support ..........................................................24 3.1 Kinematic Analysis of Four-column Chock-shield Hydraulic Support .................24 3.2 Kinematic Analysis of Two-column Shield Hydraulic Support ..........................29 3.3 Endpoint Trajectory Curve Drawing of the Beam ................................................31 3.4 Motion Simulation of Hydraulic Support ............................................................32 3.5 Programming of Kinematic Analysis...................................................................32 3.6 Summary ............................................................................................................33 4 Stress Analysis and Strength Check of Hydraulic Support ................................35 4.1 Stress Analysis of Four-column Chock-shield Hydraulic Support ........................35 4.2 Stress Analysis of Two-column Shield Hydraulic Support ...................................42 4.3 Strength Check ...................................................................................................45 4.4 Programming of Stress Analysis and Strength Check ..........................................51 4.5 Summary ............................................................................................................51 5 Computer-aided Design System and Its Application of Hydraulic Supports ....53 万方数据 VIII 5.1 Developing Tools of the System..........................................................................53 5.2 The Computer-aided Design System ...................................................................56 5.3 Finite Element Analysis of the Column ...............................................................70 5.4 Summary ............................................................................................................72 6 Conclusions and Prospects ..................................................................................73 6.1 Conclusion .........................................................................................................73 6.2 Innovative Points ................................................................................................73 6.3 Prospect ..............................................................................................................74 References ...............................................................................................................75 Appendix .................................................................................................................79 Author’s Resume ....................................................................................................87 Declaration of Thesis Originality ...........................................................................89 Thesis Data Collection ...............................................................