【正文】 .............................................................. 5 工作條件 ................................................................................................................ 5 第二章 總體設(shè)計 ................................................................................................................. 7 電動機的選擇。 .................................................................................................... 7 電動機型號選擇： ..................................................................................... 7 工作所需功率 ： ......................................................................................... 7 電動機所需功率： ..................................................................................... 7 電動機轉(zhuǎn)速的選擇： ................................................................................. 7 傳動比分配 ............................................................................................................ 8 傳動裝置的運動和動力參數(shù) ................................................................................ 8 各軸的轉(zhuǎn)速計算 ......................................................................................... 8 各軸輸出功率計算 ..................................................................................... 8 各軸輸入轉(zhuǎn)矩計算 ..................................................................................... 9 第三章 傳動零件設(shè)計 ....................................................................................................... 10 V 帶的設(shè)計與計算 ................................................................................................ 10 確定計算功率 Pca .................................................................................... 10 選擇 V帶的帶型 ....................................................................................... 10 確定帶輪的基準直徑 dd1 .......................................................................... 10 驗算帶速 v ................................................................................................ 10 計算大帶輪的直徑 ................................................................................... 10 確定 V帶的中心距 a和基準長度 Ld ...................................................... 10 計算 V帶根數(shù) Z ........................................................................................ 11 計算單根 V帶的初拉力的最小值。 ...................................................................... 25 高速軸 ： ................................................................................................... 25 中間軸 ： ................................................................................................... 25 低速軸： ................................................................................................... 25 軸的結(jié)構(gòu)設(shè)計 ....................................................................................................... 25 高速軸 ....................................................................................................... 25 中間軸 ....................................................................................................... 26 低速軸 ....................................................................................................... 26 細部機構(gòu)設(shè)計 ........................................................................................... 27 第五章 軸的校核 ............................................................................................................... 28 中間軸上作用力的計算 ...................................................................................... 28 西南科技大學(xué)城市學(xué)院課程設(shè)計 3 支反力的計算 ...................................................................................................... 28 垂直面受力 ............................................................................................... 29 水平支反力 ............................................................................................... 29 垂直平面內(nèi)轉(zhuǎn)矩 ....................................................................................... 29 計算、繪制水平面彎矩圖： ................................................................... 29 第六章 鍵的選擇和校核 ................................................................................................... 31 高速軸大帶輪處鍵的校核 .................................................................................. 31 中間軸鍵的校核 .................................................................................................. 31 高速級大齒輪處鍵 ................................................................................... 31 低速級小齒輪處鍵 ................................................................................... 31 低速軸鍵校核 ...................................................................................................... 32 低速級大齒輪處鍵 ................................................................................... 32 低速軸聯(lián)軸器處鍵 ................................................................................... 32 第七章 滾動軸承的選擇和校核 ....................................................................................... 33 高速軸的軸承校核 .............................................................................................. 33 軸承受力圖如圖 ....................................................................................... 33 計算當(dāng)量動載荷 ....................................................................................... 33 驗算軸承的壽命 ....................................................................................... 33 中間軸的軸承校核 .............................................................................................. 34 軸承受力圖 ............................................................................................... 34 計算當(dāng)量動載荷 ....................................................................................... 34 驗算軸承的壽命 ....................................................................................... 34 低速軸的軸承校核 .............................................................................