【正文】 機(jī)械設(shè)計(jì)課程設(shè)計(jì) 1 設(shè)計(jì)膠帶輸送機(jī)的傳動(dòng)裝置 機(jī)械設(shè)計(jì)課程設(shè)計(jì)說明書 機(jī)械設(shè)計(jì)課程設(shè)計(jì) 2 目錄 1 設(shè)計(jì)任務(wù)書 ................................................................................................................ 4 題目名稱 設(shè)計(jì)膠帶輸送機(jī)的傳動(dòng)裝置 ............................................................ 4 工作條件 ................................................................................................................ 4 技術(shù)數(shù)據(jù) ................................................................................................................ 4 2 電動(dòng)機(jī)的選擇計(jì)算 .................................................................................................... 4 選擇電動(dòng)機(jī)系列 .................................................................................................... 4 滾筒轉(zhuǎn)動(dòng)所需要的有效功率 ................................................................................ 4 確定電動(dòng)機(jī)的轉(zhuǎn)速 ................................................................................................ 5 3 傳動(dòng)裝 置的運(yùn)動(dòng)及動(dòng)力參數(shù)計(jì)算 ............................................................................ 5 分配傳動(dòng)比 ............................................................................................................ 5 總傳動(dòng)比 ................................................................................................. 5 各級傳動(dòng)比的分配 ................................................................................... 5 各軸功率、轉(zhuǎn)速和轉(zhuǎn)矩的計(jì)算 ............................................................................ 6 Ⅰ軸（高速軸） ....................................................................................... 6 Ⅱ軸（中間軸） ....................................................................................... 6 Ⅲ軸（低速軸） ....................................................................................... 6 Ⅳ軸（傳動(dòng)軸） ....................................................................................... 6 Ⅴ軸（卷筒軸） ....................................................................................... 6 開式齒輪的設(shè)計(jì) .................................................................................................... 7 材料選擇 ................................................................................................. 7 按齒根彎曲疲勞強(qiáng)度確定模數(shù) .................................................................. 7 齒輪強(qiáng)度校核 .......................................................................................... 8 齒輪主要幾何參數(shù) ................................................................................... 9 4 閉式齒輪設(shè)計(jì) .......................................................................................................... 10 減速器高 速級齒輪的設(shè)計(jì)計(jì)算 .......................................................................... 10 材料選擇 ............................................................................................... 10 按齒面接觸疲勞強(qiáng)度確定中心距 ............................................................ 10 驗(yàn)算齒面接觸疲勞強(qiáng) 度 .......................................................................... 12 驗(yàn)算齒根彎曲疲勞強(qiáng)度 ...................................................................... 13 齒輪主要幾何參數(shù) ............................................................................... 2 減速器低速級齒輪的設(shè) 計(jì)計(jì)算 ....................................................................... 2 材料選擇 ............................................................................................. 2 按齒面接觸疲勞強(qiáng)度確定中心距 .......................................................... 3 驗(yàn)算齒面 接觸疲勞強(qiáng)度 ........................................................................ 4 驗(yàn)算齒根彎曲疲勞強(qiáng)度 ........................................................................ 6 齒輪主要幾何參數(shù) ............................................................................... 7 5 軸的設(shè)計(jì)計(jì) 算 ....................................................................................................... 7 高速軸的設(shè)計(jì)計(jì)算 ........................................................................................... 7 中間軸的設(shè)計(jì)計(jì)算 ........................................................................................... 8 低速軸的設(shè)計(jì)計(jì)算 ........................................................................................... 8 機(jī)械設(shè)計(jì)課程設(shè)計(jì) 3 6 低速軸的強(qiáng)度校核 ............................................................................................... 9 繪制低速軸的力學(xué)模型 ............................................................................ 9 求支反力 ................................................................................................. 9 作彎矩、轉(zhuǎn)矩圖 .................................................................................... 11 作計(jì)算彎矩 Mca圖 ............................................................................. 12 校核該軸的強(qiáng)度 ................................................................................. 12 精確校核軸的疲勞強(qiáng)度 ................................................................