放顶煤液压支架设计说明书.doc

弭庆冬 放顶煤液压支架的设计 ·辽宁工程技术大学 PAGE \* MERGEFORMAT I PAGE \* MERGEFORMAT I PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I 摘 要 ? 本文对国内外放顶煤开采技术发生历史及现状进行了综合阐述，对放顶煤液压支架进行了分类和对其各种形式研究；介绍了每种形式放顶煤液压支架各适应的煤层条件；并结合神东四盘区的现状，设计适用于煤层厚度5.35-9.86，平均采高8.9米满足顶板、地板条件的放顶煤液压支架.形成满足神东现状的放顶煤开采技术理论。 通过对现有放顶煤液压支架的分析，优势对比，设计出适合的结构形式，最后对立柱、顶梁、掩护梁和底座进行了强度校核计算。 关键字：放顶煤液压支架；立柱；顶梁；掩护梁；底座；放煤机构。 PAGE \* MERGEFORMAT II PAGE \* MERGEFORMAT II PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I Abstract In this paper on the domestic and foreign technology of top coal caving mining occurred history and current situation has been discussed, on the roof caving coal hydraulic support the classification and research in its various forms; introduced each kind of form of roof caving coal hydraulic support the adaptation conditions of coal seam; Shendong four disc area and combined with the status quo, designed for coal seam thickness 5.35-9.86, collect on average 8.9 meters high and meet the conditions of roof and floor of top coal caving hydraulic support. Formed to meet the Shendong status of top coal caving mining technology in theory. Through the analysis of the existing roof caving coal hydraulic support, comparative advantages of design for the structural form, strength check and calculates the column, a top beam and a shield beam and a base at the end of paper. Keywords: Caving hydraulic support；Column; beam; shield; base; coal caving mechanism. 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc21919 1 绪论 PAGEREF _Toc21919 1 HYPERLINK \l _Toc2960 1.1 放顶煤综采法的优缺点 PAGEREF _Toc2960 1 HYPERLINK \l _Toc27165 1.2 放顶煤液压支架的发展历史 PAGEREF _Toc27165 1 HYPERLINK \l _Toc11083 1.3 放顶煤液压支架结构的基本特点 PAGEREF _Toc11083 2 HYPERLINK \l _Toc30582 1.4 放顶煤液压支架的分类 PAGEREF _Toc30582 2 HYPERLINK \l _Toc12614 1.5放顶煤液压支架使用条件和适用范围 PAGEREF _Toc12614 2 HYPERLINK \l _Toc142 1.6设计任务 PAGEREF _Toc142 3 HYPERLINK \l _Toc21882 2 支架的总体方案设计 PAGEREF _Toc21882 4 HYPERLINK \l _Toc9116 2.1 支架结构方案设计 PAGEREF _