【正文】 with heavy machinery. Shaft parts in the machine used to support transmission parts, in order to realize the transmission of motion and power. At the same time the helical gear transmission torque, stable starting, grading fine transmission ratio, high transmission efficiency, according to user requirements for any connection and installation position selection, has a certain plexity and strong practical value. The output shaft is a typical shaft parts, its role in power output device output power, is one of key parts of it, so the processing quality of the machine safety and stability are greatly affected by. This graduation design mainly narrated the K series spiral bevel gear reducer design process. Firstly, the transmission scheme, then the reducer design calculation (including the choice of motor, gear, shaft design structure design, selection and calculation of rolling bearing, selecting and checking coupling, key selection and check, selection of gear and bearing lubrication mode .). Using CAXA software for gear reducer of twodimensional design, plete the gear reducer of 2D part drawing and assembly drawing. Through this graduation design, by the use of the mechanical design and mechanical manufacturing technology the basic theoretical knowledge, make reasonable gear reducer design, master the mechanical design of the general procedures and methods, develop their own analysis problem, problemsolving ability. And through the spiral bevel gear reducer design, to explore, small business problems, improve production efficiency, product accuracy, reduce the cost of production. Key word： Reducer Gear engagement Shaft drive Transmission ratio Transmission efficiency 寧夏理工學(xué)院畢業(yè)設(shè)計(jì)（論文） VIII 目錄 緒 論 ........................................................... I 摘 要 ......................................................... VI Abstract...................................................... VII 第一章 .......................................................... 1 設(shè)計(jì)題目 K 系列圓錐斜齒輪減速機(jī) ................................. 1 減速機(jī)的工作原理 ....................................... 1 工作情況 ............................................... 1 傳動(dòng)方案的選擇和分析 ................................... 2 傳動(dòng)方案的選擇 ................................... 2 傳動(dòng)方案的分析 ................................... 2 第二章 .......................................................... 3 電機(jī)的選擇 ...................................................... 3 選擇類(lèi)型 ............................................... 3 電機(jī)功率的確定 ......................................... 3 傳動(dòng)比的分配 ........................................... 3 傳動(dòng)裝置的運(yùn)動(dòng)、動(dòng)力參數(shù)的計(jì)算 ......................... 3 第三章 .......................................................... 5 減速器內(nèi)的傳動(dòng)零件設(shè)計(jì)計(jì)算 ...................................... 5 選擇材料、熱處理方式各 公差等級(jí) ......................... 5 高速級(jí)斜齒圓柱齒輪的設(shè)計(jì)計(jì)算 ........................... 5 高速級(jí)齒輪傳動(dòng)尺寸的設(shè)計(jì)計(jì)算 ..................... 5 驗(yàn)算齒面接觸疲勞強(qiáng)度 ............................. 7 驗(yàn)算齒根彎曲疲勞強(qiáng)度 ............................. 9 錐齒輪的設(shè)計(jì)計(jì)算 ...................................... 10 錐齒輪傳動(dòng)尺的設(shè)計(jì)計(jì)算 .......................... 10 驗(yàn)算齒根彎曲疲勞強(qiáng)度 ............................ 13 低速級(jí)斜齒圓柱齒輪的設(shè)計(jì)計(jì)算 .......................... 14 寧夏理工學(xué)院畢業(yè)設(shè)計(jì)（論文） IX 低速級(jí)齒輪傳動(dòng)尺寸的設(shè)計(jì)計(jì)算 .................... 14 驗(yàn)算齒面接觸疲勞強(qiáng)度 ............................ 16 驗(yàn)算齒根彎曲疲勞強(qiáng)度 ............................ 18 齒輪上作用力的計(jì)算 .................................... 19 第四章 ......................................................... 21 軸的設(shè)計(jì)與計(jì)算 ................................................. 21 軸的材料選擇及熱處理方式 .............................. 21 低速軸的設(shè)計(jì)與計(jì)算 .................................... 21 圓柱齒輪軸的設(shè)計(jì)與計(jì)算 ................................ 22 圓錐齒輪軸的設(shè)計(jì)與計(jì)算 ................................ 23 第五章 ......................................................... 24 軸的受力分析與校核 ............................................. 24 低速軸的受力分析與校核 ................................ 24 低速軸的受力分析 ................................ 24 校核低速軸的強(qiáng)度 ................................ 26 第六章 ......................................................... 28 圓錐滾子軸承的校核 ............................................. 28 低速軸上的軸承壽命驗(yàn)算 ................................ 28 第七章 ......................................................... 30 鍵連接的選擇及計(jì)算 ............................................. 30 低速軸上鍵的選用及校核 ................................ 30 圓柱齒輪軸上鍵的選用 .................................. 30 錐齒輪軸上鍵的選用 .................................... 30 電動(dòng)機(jī)軸上鍵的選用 .................................... 30 第八章 ......................................................... 31 設(shè)計(jì)說(shuō)明 ....................................................... 31 潤(rùn)滑油及潤(rùn)滑方式選擇 .................................. 31 關(guān)鍵零部件的安裝和加工 ................................ 31 準(zhǔn)備 ............................................ 31 寧夏理工學(xué)院畢業(yè)設(shè)計(jì)（論文） X 自檢 ............................................ 31 油漆 ............................................ 31 交檢 ............................................ 31 減速器的使用、維護(hù)與保養(yǎng) .............................. 32 第九章 ......................................................... 33 附件的選擇 ..................................................... 33 參考文獻(xiàn) ....................................................... 34 設(shè)計(jì)小結(jié) ....................................................... 35 致謝 ........................................................... 37 附錄 ........................................................... 38 輸出軸工藝規(guī)程及數(shù)控加工程序設(shè)計(jì) ............................... 38 輸出軸工藝規(guī)程設(shè)計(jì) ......................................... 38 輸出軸數(shù)控加工程序設(shè)計(jì) ..................................... 39 寧夏理工學(xué)院畢業(yè)設(shè)計(jì)（論文） 1 第一章 設(shè)計(jì)題目 K 系列圓 錐 斜 齒輪減速機(jī) 減速機(jī)的工作原理 減速機(jī)的傳動(dòng)示意圖如圖 圖 工作情況 已知條件 工作條件：兩班制，連續(xù)單向運(yùn)轉(zhuǎn)，載荷較平穩(wěn)，室內(nèi)工作，有灰塵，環(huán)境最高溫度35℃ ； 輸出轉(zhuǎn)矩 1304N 5%； 制造條件及生產(chǎn)批量：一般機(jī)械廠制造，批量生產(chǎn)。 傳動(dòng)方案的分析 該工作機(jī)采用的是原動(dòng)機(jī)為 Y 系列三相籠型異步