综采面支架回撤设备的设计与研究.pdf

工程硕士学位论文 综采面支架回撤设备的设计与研究 Design and research of culling equipment for fully mechanized mining face 作者赵金刚 导师陈世其 中国矿业大学 二〇一九年五月 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 中图分类号 TD421 学校代码 10290 UDC 621 密 级 公开 中国矿业大学 工程硕士学位论文 综采面支架回撤设备的设计与研究 Design and research of culling equipment for fully mechanized mining face 作 者 赵金刚 导 师 陈世其 申请学位 工程硕士专业学位 培养单位 机电学院 学科专业 工程领域 研究方向 矿山机械 答辩委员会主席 苗运江 评 阅 人 二○一九年五月 万方数据 致致 谢谢 毕业论文的书写已经接近尾声， 三年的矿大生活转眼间就要结束了， 不禁叹岁月荏苒， 时光飞逝。 再回首， 往事依旧。 我在中国矿业大学所经历的每一分每一秒似乎都历历在目， 清晰可见，也感叹天下没有不散的筵席，此刻我唯有感激，感谢你们出现在我的生命里， 让我今生拥有，倍加珍惜。 首先，我要对我的导师陈世其老师说一声谢谢，能成为您的学生是我今生的荣耀。忘 不了第一次师生相见，您和蔼的笑容化解了我内心的紧张与不安；忘不了与您一起品读文 章，您独特的教育视角，让我懂得做研究要独辟蹊径，不要随波逐流；忘不了您悉心指导 我的论文，您的启发与引导使我的思路豁然开朗。难以忘记的太多太多，每一点、每一滴 都早已在我心中生根发芽。今后的道路上，它们将陪伴我努力前行，实现自己的梦想，让 您为我感到骄傲。 然后， 我要感谢我的同学， 我们一起的学习时光， 将谱写进我致青春中最美丽的篇章； 我要感谢我的同窗好友们，谢谢你们在学习上对我的帮助和生活中的点滴关心；希望在以 后的道路上，我们能够互相帮助，共同前行。 最后，我要感谢我的家人，没有你们，就没有今天我所取得的成绩。感谢爸妈为我倾 注的半生心血，是你们的操劳换来今天我所拥有的一切，你们对我深沉的爱，用世间任何 词语描述都略显苍白；感谢我的亲人们，你们对我的照顾与包容让我体会到血浓于水的亲 情。 最后感谢各位专家、教授在百忙之中对本论文的评审，由于作者水平和时间的限制， 文中难免有不足、疏漏甚至错误之处，恳请给予批评指正，以便在今后的工作学习中进一 步修正、完善。 万方数据 I 摘摘 要要 我国中厚煤层资源储量丰富，自 20 世纪 80 年代初期开始引进和研究实验综采机械化 技术以来，经历了不断的技术攻关和技术创新，解决了综采装备、工艺、瓦斯防治和防灭 火等系列技术难题。尤其是大采高综采技术及装备取得了较大的进步，主流采煤工艺经历 炮采、普采、综采、综放、大采高的变革。目前我国厚煤层主要采煤方法有综放开采、大 采高综采、大采高综放 3 种。随着煤矿开采技术的不断进步，综采效率得到不断提升，综 采工作面的更换日益加快，其相应配套设备的回撤也越来越频繁。由于工作面液压支架数 目多， 重量大， 且缺少专业的设备回撤装备， 导致其回撤效率低、 安全性差且劳动强度大。 论文根据田陈煤矿 3 下 7110 工作面综采液压支架回撤技术需求，以支架安全高效的 回撤为目的，借鉴传统支架回撤工艺的优点，研究开发了新的综采液压支架回撤平台 （1）分析了综采工作面支架回撤设备现状与不足，结合田陈煤矿 3 下 7110 工作面情 况，确定了该工作面支架回撤工艺和回撤设备总体方案。 （2）研制了具有高工作阻力、长伸缩梁、大推移机构、侧向推网装置的工作面回撤 支护装备,并用 ABAQUS 软件对其进行了有限元分析，表明支护装置强度能够满足支架回 撤工艺的要求，实现了工作面液压支架回撤时顶板的安全支护。 （3）采用千斤顶滑轮组结构，实现工作面支架在回撤平台的快速拉出和转向，提高 了工作面支架的回撤速度。 （4）通过对回撤设备的运动和负载分析，完成了液压支架回撤设备液压系统设计， 并对样机进行了试验，表明研究开发的综采液压支架回撤平台满足工况要求。 综采面液压支架回撤设备的成功研制，较传统液压支架回撤工艺及装备，具有高安全 性，拉移及调向效率高的技术特点，可有效降低施工人员劳动强度，符合高产高效矿井的 工艺装备的实际需求。同时本产品设计过程对井下综采工作面类似专用机械装配的设计与 研制也有一定的借鉴意义。 该论文有图 104 幅，表 12 个，参考文献 84 篇。 关键词关键词 回撤设备；有限元；结构设计；液压系统 万方数据 II Abstract Chinas medium-thick coal seam resources are abundant. Since the introduction and research of experimental mechanized mining mechanization technology in the early 1980s, we have experienced continuous technological research and technological innovation, and solved the series of comprehensive mining equipment, technology, gas prevention and fire prevention technical challenge. In particular, large-scale high-level fully mechanized mining technology and equipment have made great progress, and the mainstream coal mining process has undergone changes in artillery mining, general mining, fully mechanized mining, fully mechanized caving, and large mining height. At present, the main coal mining s in thick coal seams in China include three types of fully mechanized caving mining, large mining height and fully mechanized mining. With the continuous improvement of coal mining technology, the comprehensive mining efficiency has been continuously improved, the replacement of fully mechanized mining face has been accelerated, and the withdrawal of corresponding supporting equipment has become more frequent. Due to the large number of hydraulic supports on the working surface, the heavy weight, and the lack of professional equipment retracement equipment, the retracement efficiency is low, the safety is poor, and the labor intensity is large. According to the technical requirements of the fully mechanized hydraulic support retracement of the 3110 working face of Tianchen Coal Mine, the paper aims to safely and efficiently withdraw the support, and draws on the advantages of the traditional support retracement process to develop a new fully mechanized hydraulic support retracement plat. 1 Analyzed the status quo and deficiencies of the detachment equipment of the fully mechanized mining face, and combined with the situation of the 3110 working face of Tianchen Coal Mine, the overall plan for the retracing process and the retracing equipment of the working face was determined. 2 The working face retracement support equipment with high working resistance, long telescopic beam, large pushing mechanism and lateral pushing net device was developed, and finite element analysis was carried out with ABAQUS software, indicating that the strength of the supporting device can be satisfied. The requirement of the bracket retraction process realizes the safety support of the top plate when the hydraulic support of the working face is retracted. 3 Adopting the structure of jack pulley block to realize the quick pull-out and steering of the working face bracket on the retracting plat, and improve the retracting speed of the working surface bracket. 万方数据 III 4 Through the movement and load analysis of the retracement equipment, the hydraulic system design of the hydraulic support retracement equipment was completed, and the prototype was tested, which indicated that the research and development of the fully mechanized hydraulic support retracement plat met the working conditions. The successful development of the hydraulic support retracement equipment for the fully mechanized mining face is more technical than the traditional hydraulic support retracement process and equipment, with high safety, high efficiency of pulling and adjusting, which can effectively reduce the labor intensity of construction workers and meet the high-yield and high-efficiency mine. The actual needs of the process equipment. At the same time, the design process of this product has certain reference significance for the design and development of the similar mechanical assembly of the underground fully mechanized mining face. In this paper，there are 104 pictures, 12 tables, and 84 references. Key words retracing equipment; finite element; structural design; hydraulic system 万方数据 IV 目目 录录 摘摘 要要 ................................................................................................................................. . I I 目目 录录 ................................................................................................................................ IVIV 图清单图清单 ............................................................................................................................ VIIIVIII 表清单表清单 .............................................................................................................................. XIVXIV 变量注释表变量注释表 ........................................................................................................................ XVXV 1 1 绪论绪论 ................................................................................................................................. . 1 1 1.1 课题来源及研究的目的与意义 ........................................... 1 1.2 支架回撤设备研究现状 ................................................. 3 1.3 课题主要研究内容及方法 ............................................... 9 1.4 可行性分析与技术路线 ................................................. 9 1.5 本章小结 ............................................................ 11 2 2 液压支架回撤工艺和设备总体方案设计液压支架回撤工艺和设备总体方案设计...................................................................... 1212 2.1 引言 ................................................................ 12 2.2 液压支架回撤工艺分析 ................................................ 13 2.3 液压支架回撤设备配套关系设计 ........................................ 14 2.4 液压支架回撤设备设计过程 ............................................ 16 2.5 本章小结 ............................................................ 28 3 3 综采面液压支架回撤设备的有限元分析综采面液压支架回撤设备的有限元分析...................................................................... 2929 3.1 有限元法介绍 ........................................................ 29 3.2 定义部件材料属性及确定网格单元的形式 ................................ 30 3.3 加长顶梁及伸缩梁的有限元分析 ........................................ 31 3.4 加长顶梁及伸缩梁单侧偏载的有限元分析 ................................ 42 3.5 侧向推网机构的有限元分析 ............................................ 49 3.6 侧向推网机构单侧偏载的有限元分析 .................................... 56 3.7 本章小结 ............................................................ 61 4 4 液压传动系统的设计液压传动系统的设计 .................................................................................................... 6262 4.1 引言 ................................................................ 62 4.2 液压传动系统的基本要求 .............................................. 62 4.3 液压传动系统的功能设计 .............................................. 62 4.4 液压支架回撤设备液压系统图 .......................................... 69 万方数据 V 4.5 本章小结 ............................................................ 71 5 5 液压支架回撤设备样机试验液压支架回撤设备样机试验 ........................................................................................ 7272 5.1 液压支架回撤设备样机试制 ............................................ 72 5.2 试验操作注意事项 .................................................... 72 5.3 液压支架回撤设备样机功能性试验 ...................................... 73 5.4 本章小结 ............................................................ 73 6 6 液压支架回撤设备设计的总结与展望液压支架回撤设备设计的总结与展望 ........................................................................ 7474 6.1 总结 ................................................................ 74 6.2 工作展望 ............................................................ 74 参考文献参考文献 ............................................................................................................................ 7676 作者简历作者简历 ............................................................................................................................ 8080 学位论文原创性说明学位论文原创性说明 ........................................................................................................ 8282 学位论文数据集学位论文数据集 ................................................................................................................ 8383 万方数据 VI Contents Abstract .................................................................................................................................. II Contents ............................................................................................................................... VI List of Figures ................................................................................................................... VIII List of Tables ........................................................................................................................ XI List of Variables ................................................................................................................. XIV 1 1 IntroductionIntroduction ................................................................................................................... XV 1.1 The source of the subject and the purpose and significance of the research ...................... 1 1.2 Research status of stent withdrawal equipment ................................................................. 3 1.3 Main research contents and s ................................................................................. 9 1.4 Feasibility analysis and technical route .............................................................................. 9 1.5 Chapter summary ............................................................................................................. 11 2 Hydraulic support retraction process and equipment overall design .......................... 12 2.1 Introduction ...................................................................................................................... 12 2.2 Hydraulic support retraction process analysis .................................................................. 13 2.3 Hydraulic bracket retracement equipment matching relationship design ........................ 14 2.4 Overall design of hydraulic support retracement equipment ........................................... 16 2.5 Chapter summary ............................................................................................................. 28 3 Finite Element Analysis of Hydraulic Support Retraction Equipment in Fully Mechanized Face .................................................................................................................. 29 3.1 Introduction to finite element .............................................................................. 29 3.2 Define part material properties and determine the of the grid unit ......................... 30 3.3 Finite element analysis of extended top beam and telescopic beam ................................ 31 3.4 Lateral Pushing Mechanism Assembly Model Unilateral Stress Distribution Cloud Diagram .................................................................................................................................. 42 3.5 Finite Element Analysis of Lateral Pushing Mechanism ................................................. 49 3.6 Finite Element Analysis of Unilateral Eccentric Load of Lateral Pushing Mechanism .. 56 3.7 Chapter summary ............................................................................................................. 61 4 Hydraulic drive system design ......................................................................................... 62 4.1 Introduction ...................................................................................................................... 62 4.2 Basic requirements for hydraulic drive systems .............................................................. 62 万方数据 VII 4.3 Functional design of hydraulic drive system ................................................................... 62 4.4 Hydraulic support retracement equipment hydraulic system diagram ............................. 69 4.5 Chapter summary ............................................................................................................. 71 5 Hydraulic support retracement equipment prototype test ........................................... 72 5.1 Hydraulic support retracement equipment prototype trial production ............................. 72 5.2 Test operation precautions ................................................................................................ 72 5.3 Hydraulic support retracement equipment prototype functional test ............................... 73 5.4 Chapter summary ............................................................................................................. 73 6 Summary and