【正文】 ................................................................13 頂梁的長度計算 .........................................................13 頂梁寬度 ....................................................................14 頂梁覆蓋率 .................................................................14 立柱位置的確定 .....................................................................15 支架立柱數(shù)的確定 .....................................................15 支撐方式 ....................................................................16 立柱間距 ....................................................................16 IV 立柱柱窩位置的確定 .................................................16 第 4 章 液壓支架的部件結構設計 ...................................................17 頂梁 .......................................................................................17 立柱 .......................................................................................17 掩護梁 ...................................................................................17 四連桿機構 ...........................................................................18 四連桿機構的作用 .....................................................18 四連桿機構的幾何特征 .............................................18 用幾何作圖法來設計四連桿機構 ..............................19 底座 .......................................................................................23 側護板 ...................................................................................23 千斤頂 ...................................................................................24 推移千斤頂 .................................................................24 側推千斤頂 .................................................................24 前梁千斤頂 .................................................................24 護幫千斤頂 ..................................................................24 后推移輸送機千斤頂 .................................................25 放煤機構設計 ........................................................................26 第 5 章 液壓支架受力分析 ...............................................................27 液壓支架基本技術參數(shù)的確定 ..............................................27 支護強度 .....................................................................27 初撐力 .........................................................................27 移駕力和推溜力 .........................................................28 支柱及相關液壓系統(tǒng)參數(shù)確定 ..................................28 液壓支架立柱強度驗算 ........................................................31 已知參數(shù) .....................................................................31 油缸穩(wěn)定性計算 ..........................................................32 活塞桿的強度計算 ......................................................33 缸體的強度驗算 .........................................................37 液壓支架主要技術參數(shù) ..............................................37 液壓支架受力分析 ................................................................38 支 架整體受力分析 ......................................................40 前梁受力分析 .............................................................41 頂梁受力分析 .............................................................41 掩護梁受力分析 .........................................................43 V 支架底座受力分析 .....................................................44 第 6 章 支架強度計算 .........................................................................47 強度條件 ................................................................................47 液壓支架的強度校核 ............................................................49 前梁梁 強度校核 ..........................................................49 頂梁強度校核 ..............................................................53 底座的強度校核 .........................................................59 掩護梁的強度校核 ......................................................65 結 論 ..................................................................................................72 致 謝 ..................................................................................................73 參考文獻 ..............................................................................................74 CONTENTS Abstract ................................................................................................ II The introduction chapter 1 ................................................................. 1 advantages and disadvantages of the caving fully mechanized method ............................................................................... 1 development history of the caving hydraulic support ......... 1 basic characteristics of the caving hydraulic support structure ................................................................................................ 2 VI The classification of the caving hydraulic support ................... 2 caving hydraulic support use conditions and applicable scope ..................................................................................................... 3 The caving hydraulic support conditions of use .............. 3 The caving hydraulic support scope ................................ 3 Ove rall design of bracket of chapte r 2 ............................................... 4 Design task ............................................................................... 4 Support structure design ........................................................... 4 In the four connecting rod caving hydraulic support ....... 4 Chiang kaishek fourbar low caving hydraulic support .. 5 In the four connecting rod caving hydraulic support low 6 Chapte r 3, the ove rall structure size of the hydraulic support design...................................................................................................