【正文】 ......................................................................... 5 工作條件 ................................................................................................................ 5 第二章 總體設(shè)計(jì) ................................................................................................................. 7 電動(dòng)機(jī)的選擇。 .................................................................................................... 7 電動(dòng)機(jī)型號(hào)選擇： ..................................................................................... 7 工作所需功率 ： ......................................................................................... 7 電動(dòng)機(jī)所需功率： ..................................................................................... 7 電動(dòng)機(jī)轉(zhuǎn)速的選擇： ................................................................................. 7 傳動(dòng)比分配 ............................................................................................................ 8 傳動(dòng)裝置的運(yùn)動(dòng)和動(dòng)力參數(shù) ................................................................................ 8 各軸的轉(zhuǎn)速計(jì)算 ......................................................................................... 8 各軸輸出功率計(jì)算 ..................................................................................... 8 各軸輸入轉(zhuǎn)矩計(jì)算 ..................................................................................... 9 第三章 傳動(dòng)零件設(shè)計(jì) ....................................................................................................... 10 V帶的設(shè)計(jì)與計(jì)算 ................................................................................................ 10 確定計(jì)算功率 Pca .................................................................................... 10 選擇 V帶的帶型 ....................................................................................... 10 確定帶輪的基準(zhǔn)直徑 dd1 .......................................................................... 10 驗(yàn)算帶速 v ................................................................................................ 10 計(jì)算大帶輪的直徑 ................................................................................... 10 確定 V帶的中心距 a和基準(zhǔn)長(zhǎng)度 Ld ...................................................... 10 計(jì)算 V帶根數(shù) Z ........................................................................................ 11 計(jì)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(jì) ....................................................................................................... 25 高速軸 ....................................................................................................... 25 中間軸 ....................................................................................................... 26 低速軸 ....................................................................................................... 26 細(xì)部機(jī)構(gòu)設(shè)計(jì) ........................................................................................... 27 第五章 軸的校核 ............................................................................................................... 28 中間軸上作用力的計(jì)算 ...................................................................................... 28 西南科技大學(xué)城市學(xué)院課程設(shè)計(jì) 3 支反力的計(jì)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(jì)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(jí)大齒輪處鍵 ................................................................................... 31 低速級(jí)小齒輪處鍵 ................................................................................... 31 低速軸鍵校核 ...................................................................................................... 32 低速級(jí)大齒輪處鍵 ................................................................................... 32 低速軸聯(lián)軸器處鍵 ................................................................................... 32 第七章 滾動(dòng)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(jì)算當(dāng)量動(dòng)載荷 ....................................................................................... 33 驗(yàn)算軸承的壽命 ....................................................................................... 33 中間軸的軸承校核 .............................................................................................. 34 軸承受力圖 ............................................................................................... 34 計(jì)算當(dāng)量動(dòng)載荷 ....................................................................................... 34 驗(yàn)算軸承的壽命 ....................................................................................... 34 低速軸的軸承校核 ...................................................................