【正文】 bee soon anization, box a body, lubricate and seal pletely, spread to move stalk and slippery move wheel gear spare parts of design to plete design tasks. This highlights the structural design requirements, under the basic requirements for ensuring the machine ,According to the principles of machine tool design, Development of institutional and structural , Streamlining of the machine tool sector, Strive to reduce production costs, No choice of materials resulting in high strength waste. 【 Keywords】 lather, Main drive system, Structure , Electric motor. 安徽建筑大學(xué)畢業(yè)設(shè)計論文 第 4 頁 共 53 頁 目錄 緒論 ................................................................................................................................ 6 ................................................................................................ 7 2. 主動參數(shù)的擬定 .................................................................................................... 8 確定傳動公比 ? .................................................................................................. 8 主電動機(jī)的選擇 .................................................................................................. 9 ....................................................................................................... 10 ....................................................................................................... 10 確定變速組及各變速組中變速副的數(shù)目 ........................................................ 10 結(jié)構(gòu)式的擬定 .................................................................................................... 11 結(jié)構(gòu)網(wǎng)的擬定 .................................................................................................... 11 各變速組的變速范圍及極限傳動比 ................................................................ 12 確定各軸的轉(zhuǎn)速 ................................................................................................ 13 繪制轉(zhuǎn)速圖 ........................................................................................................ 14 確定各變速組變速副齒數(shù) ................................................................................ 14 繪制變速系統(tǒng)圖 ................................................................................................ 16 ................................................................................................................... 17 結(jié)構(gòu)設(shè)計的內(nèi)容、技術(shù)要求和方案 ............................................................... 17 展開圖及其 布 置 ............................................................................................... 17 I軸（輸入軸）的設(shè)計 ................................................................................... 17 齒輪塊設(shè)計 ....................................................................................................... 18 傳動軸的設(shè)計 ................................................................................................... 19 主軸組件設(shè)計 ................................................................................................... 20 各部分尺寸的選擇 ..................................................................................... 20 主軸材料和熱處理 ..................................................................................... 20 主軸軸承 ..................................................................................................... 21 主軸與齒輪的連接 ..................................................................................... 22 潤滑與密封 ............................................................................................... 22 其他問題 ..................................................................................................... 22 ........................................................................................................... 23 帶輪的設(shè)計 ........................................................................................................ 23 確 定各軸轉(zhuǎn)速 .................................................................................................... 26 傳動軸直徑的估算：確定各軸最小直徑 ........................................................ 27 鍵的選擇、傳動軸、鍵的校核 ........................................................................ 28 確定和校核 .......................................................................... 30 齒輪模數(shù)的確定： ............................................................................................ 30 安徽建筑大學(xué)畢業(yè)設(shè)計論文 第 5 頁 共 53 頁 齒輪的設(shè)計 ........................................................................................................ 34 ................................................................................................................... 36 齒輪強(qiáng)度校核 .................................................................................................... 36 校核 a 組齒輪 .............................................................................................. 37 校核 b 組齒輪 ............................................................................................. 38 校核 c 組齒輪 ............................................................................................. 39 ........................................................................................................... 41 主軸的基本尺寸確定 ........................................................................................ 41 外徑尺寸 D .................................................................................................. 41 主軸孔徑 d................................................................................................... 42 主軸懸伸量 a ............................................................................................... 43 支撐跨距 L .................................................................................................. 43 主軸最佳跨距 0L 的確定 ........................................................................... 43 主軸剛度驗算 ...................................................................................