【正文】 ..................................................................................................... 6 總傳動(dòng)比 ............................................................................................................. 6 分配傳動(dòng)比 .......................................................................................................... 6 ....................................................................................... 7 各軸的轉(zhuǎn)速 .......................................................................................................... 7 各軸的功率 .......................................................................................................... 7 各軸的轉(zhuǎn)矩 .......................................................................................................... 7 速器的外傳動(dòng)件的設(shè)計(jì) .............................................................................................. 8 選擇 V帶型號(hào) ...................................................................................................... 8 確定帶輪基準(zhǔn)直徑 ............................................................................................... 8 驗(yàn)算帶的速度 ...................................................................................................... 8 確定中心距和 V帶長(zhǎng)度 ........................................................................................ 8 驗(yàn)算小帶輪包角 ............................................................................................... 9 確定 V帶根數(shù) ...................................................................................................... 9 計(jì)算初拉力 .......................................................................................................... 9 計(jì)算作用在軸上的壓力 ........................................................................................ 9 帶輪結(jié)構(gòu)設(shè)計(jì) ...................................................................................................... 9 的設(shè)計(jì)計(jì)算 ................................................................................ 10 選擇材料、熱處理方式和公差等級(jí) .................................................................... 10 初步計(jì)算 傳動(dòng)的主要尺寸 .................................................................................. 10 確定傳動(dòng)尺寸 .................................................................................................. 11 校核齒根彎曲疲勞強(qiáng)度 ..................................................................................... 13 計(jì)算齒輪傳動(dòng)其他幾何尺寸 ............................................................................... 14 柱齒輪的設(shè)計(jì)計(jì)算 .................................................................................. 15 選擇齒輪的材料 ................................................................................................. 15 確定齒輪許用應(yīng)力 ............................................................................................. 15 計(jì)算 小齒輪分度圓直徑 ...................................................................................... 16 驗(yàn)算接觸應(yīng)力 .................................................................................................... 16 驗(yàn)算彎曲應(yīng)力 ................................................................................................... 17 計(jì)算齒輪傳動(dòng)的其他尺寸 ................................................................................... 17 齒輪作用力的計(jì)算 ............................................................................................. 18 8 中間軸的設(shè)計(jì)計(jì)算 ....................................................................................................... 18 已知條件 ........................................................................................................... 18 選擇軸的材料 .................................................................................................... 19 初算軸徑 ........................................................................................................... 19 結(jié)構(gòu)設(shè)計(jì) ........................................................................................................... 19 鍵連接 ............................................................................................................... 21 軸的受力分析 .................................................................................................... 21 校核軸的強(qiáng)度 .................................................................................................... 23 校核鍵連接的強(qiáng)度 ............................................................................................. 23 校核軸承壽命 .................................................................................................... 23 ................................................................................................... 24 已知條件 ........................................................................................................... 24 選擇軸的材料 .................................................................................................... 24 初算最小軸徑 .................................................................................................... 24 結(jié)構(gòu)設(shè)計(jì) ........................................................................................................... 25 鍵連接 ............................................................................................................... 27 軸的受力分析 .................................................................................................... 27 校核軸的強(qiáng)度 .................................................................................................... 29 校核鍵連接的強(qiáng)度 ............................................................................................. 30 校核軸承壽命 .................................................................................................... 30 .................................................................................................. 31 .......................................................................................................... 31 ..................................