【正文】 lic system design, and a reasonable choice of hydraulic ponents of each subsystem, and finally, checking the performance of the hydraulic system. This design allows the hydraulic system of the engine hydraulic system39。 performance calculation 湖南理工學(xué)院畢業(yè)設(shè)計 I 目錄 摘 要 ........................................................................................................................................... I Abstract ...................................................................................................................................... II 1. 緒論 ....................................................................................................................................... 1 1. 1 水平定向鉆進(jìn)鋪管技術(shù)簡介 ..................................................................................... 1 1. 1. 1 非開挖技術(shù)簡介 ............................................................................................. 1 1. 1. 2 水平定向鉆進(jìn)鋪管技術(shù)簡介 ......................................................................... 1 1. 2 國內(nèi)外水平定向鉆機(jī)研發(fā)現(xiàn)狀和發(fā)展 ..................................................................... 2 1. 2. 1 國外水平定向鉆機(jī)的研發(fā)現(xiàn)狀 ..................................................................... 2 1. 2. 2 國內(nèi) HDD 現(xiàn)狀 .............................................................................................. 2 1. 3 水平定向鉆機(jī)液壓系統(tǒng) ............................................................................................. 3 1. 3. 1 水平定向鉆機(jī)液壓系統(tǒng)簡介 ......................................................................... 3 1. 3. 2 鉆機(jī)液壓系統(tǒng)的發(fā)展現(xiàn)狀和趨勢 ................................................................. 4 1. 4 課題背景及論文主要工作內(nèi)容 ................................................................................. 4 1. 4. 1 課題背景及來源 ............................................................................................. 4 1. 4. 2 論文主要內(nèi)容及各章安 排 ............................................................................. 5 2. 鉆機(jī)結(jié)構(gòu)及液壓系統(tǒng)工況分析 ........................................................................................... 6 2. 1 水平定向鉆機(jī)的工作原理 ......................................................................................... 6 2. 1. 1 水平定向鉆進(jìn)鋪管過程 ................................................................................. 6 2. 1. 2 鉆孔鉆進(jìn)原理 ................................................................................................. 7 2. 2 水平定向鉆機(jī)的結(jié)構(gòu)特點 ......................................................................................... 8 2. 2. 1 鉆機(jī)的主要設(shè)計參數(shù) ..................................................................................... 8 2. 2. 2 鉆機(jī)結(jié)構(gòu)的主要組成部分 ........................................................................... 10 2. 3 鉆機(jī)液壓 系統(tǒng)工況分析 ............................................................................................11 2. 3. 1 鉆桿旋轉(zhuǎn)工況分析 ........................................................................................11 2. 3. 2 動力頭進(jìn)退工況分析 ................................................................................... 12 2. 3. 3 鉆具夾緊及擰卸回路工況分析 ................................................................... 13 2. 3. 4 履帶行走系統(tǒng)工況分析 ............................................................................... 14 2. 3. 5 支腿支撐回路工況分析 ............................................................................... 14 湖南理工學(xué)院畢業(yè)設(shè)計 II 2. 4 本章小結(jié) ................................................................................................................... 14 3. 鉆機(jī)液壓系統(tǒng)設(shè)計 ............................................................................................................. 17 液壓系統(tǒng)的構(gòu)成和工作原理 .................................................................................... 17 3. 2 發(fā)動機(jī)選型和計算 ................................................................................................... 18 3. 3 各液壓子系統(tǒng)設(shè)計及液壓元件選擇 ....................................................................... 20 3. 3. 1 動力頭回轉(zhuǎn)系統(tǒng)設(shè)計及液壓元件選擇 ....................................................... 20 3. 3. 2 動力頭推拉系統(tǒng)設(shè)計及液壓元件選擇 ....................................................... 22 3. 3. 3 泥漿系統(tǒng)設(shè)計及液壓元件選擇 .................................................................. 23 3. 3. 4 其他液壓元件的選擇 ................................................................................... 23 4. 液壓系統(tǒng)的性能驗算 ......................................................................................................... 26 4. 1 液壓系統(tǒng)壓力損失 ................................................................................................... 26 4. 2 液壓系統(tǒng)的發(fā)熱溫升計算 ....................................................................................... 26 4. 2. 1 計算液壓系統(tǒng)的發(fā)熱功率 ........................................................................... 26 4. 2. 2 計算液壓系統(tǒng)的散熱功率 .......................................................................... 28 4. 2. 3 計算油箱散熱量 ........................................................................................... 29 4. 3 計算液壓系統(tǒng)沖擊力 .............................................................................................. 30 5. 總結(jié)與展望 ......................................................................................................................... 32 5. 1 研究總結(jié) ................................................................................................................... 32 5. 2 研究展望 ................................................................................................................... 32 參考文獻(xiàn) .................................................................................................................................. 35 致謝 .......................................................................................................................................... 37 附錄 .................................