【正文】 西南科技大學(xué)城市學(xué)院課程設(shè)計(jì) 1 目錄 目錄 ....................................................................................................................................... 1 第一章 課程設(shè)計(jì)題目 ......................................................................................................... 5 設(shè)計(jì)帶式運(yùn)輸機(jī) .................................................................................................... 5 運(yùn)動(dòng)簡(jiǎn)圖 ................................................................................................................ 5 原始設(shè)計(jì)數(shù)據(jù) ........................................................................................................ 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。 ....................................................... 11 計(jì)算軸壓力 Fp .......................................................................................... 11 西南科技大學(xué)城市學(xué)院課程設(shè)計(jì) 2 帶輪設(shè)計(jì) ................................................................................................. 11 V帶傳動(dòng)的主要參數(shù) ............................................................................... 11 高速級(jí)齒輪傳動(dòng)設(shè)計(jì) .......................................................................................... 12 選定高速齒輪類型，精度等級(jí)，材料及齒數(shù) ....................................... 12 按齒面接觸強(qiáng)度設(shè)計(jì) ............................................................................... 12 按齒根彎曲疲勞強(qiáng)度設(shè)計(jì) ....................................................................... 14 幾何尺寸的計(jì)算 ....................................................................................... 15 修正計(jì)算結(jié)果 ........................................................................................... 16 高速級(jí)齒輪的參數(shù) ................................................................................... 17 高速大齒輪結(jié)構(gòu)參數(shù) ............................................................................... 17 低速級(jí)齒輪傳動(dòng)設(shè)計(jì) .......................................................................................... 18 選定低速級(jí)齒 輪類型，精度等級(jí)，材料及齒數(shù) ................................... 18 按齒面接觸疲勞強(qiáng)度設(shè)計(jì) ....................................................................... 18 按齒根彎曲疲勞強(qiáng)度設(shè)計(jì) ....................................................................... 20 幾何尺寸的計(jì)算 ....................................................................................... 21 修正計(jì)算結(jié)果 ........................................................................................... 22 低速級(jí)齒輪的參數(shù) ................................................................................... 23 低速大齒輪結(jié)構(gòu)參數(shù) ............................................................................... 23 第四章 軸的設(shè)計(jì) ............................................................................................................... 25 軸的材料選擇和最小直徑估算。 ...................................................................... 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 .......