【作者】 王冬；

【导师】 郭卫；

【作者基本信息】 西安科技大学 ， 机械电子工程， 2009， 硕士

【摘要】 随着采煤机械化程度的不断提高和现代自动控制技术的快速发展,实现无人工作面是现今采矿工业的研究重点,无人工作面实现的关键技术包括采煤机自动调高技术、采煤机自主定位和自动导航技术、煤岩界面识别技术等。而采煤机记忆调高技术是采煤机自动调高技术的关键技术之一,针对传统的采煤机人工调高操作的方法和其他自动调高方法的缺点,本文选择了记忆调高方法,并在采煤机试验模型上就这种方法展开了研究并进行了试验,取得了一定成果。本文首先阐述了采煤机滚筒调高技术国内外发展趋势和研究现状;通过查阅相关国内外资料,了解了采煤机的工作原理、采煤工艺和滚筒的调高原理,为采煤机结构简化和模型建立打下了坚实的基础;搭建了采煤机记忆调高试验模型并重点对摇臂部分进行了相关分析,给出了试验模型的数学描述,并对相应的控制方法进行了分析;在以上基础上搭建了整个控制系统的硬件平台,详细分析了其中各个部分以及传感器的选型和电气连接;编制了控制系统的软件部分,详细分析了其中各个模块的功能和原理,分析了软件设计过程所需要解决的关键问题;通过硬件设计和软件设计,完成了整个控制系统的设计、制作了印刷电路板并进行了整个系统的调试和试验;对全文做出总结,归纳了研究内容和结论,分析了试验结果,并结合存在的问题,做出进一步的展望,指出采煤机滚筒记忆调高技术在今后需要进一步深入研究。本课题研究表明,结合嵌入式PC/104计算机开发技术和先进控制理论的应用,采煤机滚筒记忆调高技术渴望取得很大进步,能够在采煤工作面得以实现。更多还原

【Abstract】 With the mining and continuous improvement of mechanization and rapid development of modern automatic control technology, nowadays miner-less workface is the focus of the research, key technologies of miner-less workface include automatic lifting technology of coal shearer, self-positioning, auto-navigation technology of coal shearer and coal interface identification technology. Mnemonic lifting technology of coal shearer is one important part of the automatic lifting technology of coal shearer. For the disadvantage of the traditional manual operation method of coal shearer drums and other lifting methods, mnemonic lifting method is chosen in this paper, carrying out a pilot study and experiments on the test model of the coal shearer about this method. This research has got a certain achievements.The paper firstly expounds development trend and research condition of the coal shearer lifting technology at home and abroad. Through accessing to relevant information both at home and abroad, knows working principle of coal shearer and the lifting principle of drums of the coal shearer to lay the foundation of structure simplification and model set-up of real coal shearer; sets up the test model of mnemonic lifting system of coal shearer, analyzes the arms of the coal shearer test model and gives a mathematical description of test model and corresponding analysis of control algorithm; sets up the entire hardware platform of control system based on above analysis and gives a detailed analysis of the various parts of this system, the selection of sensors and electrical connections; programs the control system software part; gives a detailed analysis of the functions and principles of each software module; then analyzes the key issues solved during the process of software design; through hardware and software design, completes the entire control system design, produces two hardware printed circuit boards and carries out the entire system debugging and testing; summarizes the full text,induces the research content and the result,and makes the further forecast combined with existing problems,then points out that the mnemonic lifting technology of coal shearer will be worthy of further thoroughly study from now on.This thesis indicates that the mnemonic lifting technology of coal shearer can make a great progress by being combined with the development of embedded PC/104 computer technology and the application of advanced control theory and this technology can be realized in the future in the coal mining workface.更多还原