【正文】 的工作條件 ............................................ 2 傳動(dòng)裝置的總體設(shè)計(jì) .............................................. 2 選擇電機(jī) ........................................................ 3 電機(jī)功率 dP 的計(jì)算 ............................................ 3 總傳動(dòng)比的確定及分配 ............................................ 4 傳動(dòng)裝置運(yùn)動(dòng)和動(dòng)力參數(shù)的確定 .................................... 5 各軸轉(zhuǎn)速 .................................................... 5 各軸輸入功率 ................................................ 5 則各軸的輸出功率 ............................................ 5 各軸輸入轉(zhuǎn)矩 ................................................ 6 2 V 帶的設(shè)計(jì) .................................................... 6 確定 V 帶型號(hào) .................................................... 6 驗(yàn)算帶速 ........................................................ 6 取 V 帶基準(zhǔn)長(zhǎng)度和中心距 .......................................... 7 驗(yàn)算小帶輪包角 .................................................. 7 求 V 帶根數(shù) ...................................................... 7 求作用在帶輪軸上的壓力 .......................................... 7 3 齒輪的設(shè)計(jì) .................................................... 8 高速級(jí)齒輪的傳動(dòng)設(shè)計(jì)計(jì)算 ........................................ 8 選擇齒輪材料級(jí)精度等級(jí) ...................................... 8 確定有關(guān)參數(shù)與系數(shù) .......................................... 8 主要尺寸計(jì)算 ................................................ 9 按齒根彎曲疲勞強(qiáng)度校核 ...................................... 9 驗(yàn)算齒輪得圓周速度 ......................................... 10 幾何尺寸計(jì)算 ............................................... 10 低速級(jí)齒輪的傳動(dòng)設(shè)計(jì)計(jì)算 ....................................... 10 4 軸的設(shè)計(jì) ..................................................... 12 ii 高速軸設(shè)計(jì) ..................................................... 12 確定各軸段直徑和長(zhǎng)度 ....................................... 12 校核高速軸 ................................................. 12 鍵的設(shè)計(jì)與校核 : ............................................ 14 中間軸的設(shè)計(jì) ................................................... 14 確定各軸段直徑和長(zhǎng)度 ....................................... 14 校核該軸和軸承 ............................................. 14 鍵的設(shè)計(jì)與校核 ............................................. 16 從動(dòng)軸的設(shè)計(jì) ................................................... 16 確定各軸段直徑和長(zhǎng)度 ....................................... 16 校核該軸和軸承 ............................................. 17 鍵的設(shè)計(jì)與校核 ............................................. 18 5 聯(lián)軸器的選擇 ................................................. 18 6 箱體結(jié)構(gòu)的設(shè)計(jì) ............................................... 18 7 減速器零件的三維建模 .......................................... 21 齒輪的三維建模 ................................................. 21 軸的三維建模 ................................................... 22 箱體的三維建模 ................................................. 23 其他零件的三維建模 ............................................. 24 軸承的三維模型成型 ......................................... 24 游標(biāo)尺等零件的三維模型 ..................................... 25 組合裝配圖 ................................................. 26 8 結(jié)束語(yǔ) ....................................................... 28 參考文獻(xiàn) ....................................................... 29 致謝 .......................................................... 30 附錄 .......................................................... 31 iii Contents Abstract………………………………………………………… ……………………… 錯(cuò)誤 ! 未定義書簽。 Introduction………………………………………………………………………………1 1 Secondary spur gear reducer design of the overall program……… ...………… .…… … 2 Deterbine the working conditions of reducer……………………… ..…………… ..2 The overall design of transmission……………………… …………………………2 Select motor…………………………………………………………… ...………… 3 Electrical power calculation………………………………………………… ...5 Distribution of transmission ration………………………………………………… 5 Motion and power transmission parameter calculation…………………………… .5 Caculate the spindle speed……………………………………… ...……… ..5 Calculate the inpute power shaft………………………………… .…… ..6 Caculate the outpute power shaft…………………………… ...… ..…… 6 Caculate the inpute torque for each axis……………………… ..…… .……… 6 Caculate the outpute torque for each axis…………………… .……………… 6 2 V with the design…………………………………… .………… ……………………… 7 Identify the model of V………………………………… .………………………… 7 Checking the belt speed……… ………………………………………… ..……… 7 Take V with reference lengh and center distance… …………………… .………… 7 Checking the small pulley wrap angle……………………………… ..…………… 8 Seeking a V with the root number……………… …………………… …… … 8 seeking the role of preesure with axle………………………… …… .… …… ..8 3 Gear design…………………………………………… ……………………… ..……… 8 The design of highspeed stage gear………… …………… ……… …………… … 8 Design of lowerspeed gear………………………………………………… 10 4 Axis design………………………………………………………………… .……… 10 The design of hignspeed shaft………………………………………………… … 11 Determine the diameter and length of the shaft segments………………… .11 Check hignspeed shaft and bearing…………………………………… ..11 Design and verification keys……………………………… … ..…… .13 The design of the intermediate shaft……………………………… …… .……1 3 iv Determine the diameter and length of the shaft segments… ……… ......…… 13 Check hignspeed shaft and bearing……………… …………… .………… 15 Design and verification keys………… ……………………………… ..… 15 Design of driven shaft…………………………………… …………………… 15 Determine the diameter of the shaft segments……… …… ..…………… 16 Determine the length of each axis………… ………………… ..………… 17 Check highspeed shaft and bearing… ………………………… ……… .18 5 Select the couping……………… ……………… …………………… ...…… …… 20 6 Gear box design…………………………………………… ………… …… ……… 20 7 Threedimensional modeling of gear parts……… ………………… ……………… 20 Gear threedimensional model…………………… ……………………… …… .22 Axis threedimensional model…………… ………………………………… … 24 Threedimensional model of box………………… ……………………… .… ..25 Other parts of threedimensio