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摘 要 本次畢業(yè)設(shè)計(jì)的題目為無軸攪拌機(jī)傳動(dòng)部件的設(shè)計(jì)。首先對傳統(tǒng)的幾種常見的攪拌 機(jī)構(gòu)進(jìn)行分析、總結(jié)其工作原理及其存在的常見問題。了解目前對其存在的問題的常用 解決方案。熟悉“無軸”攪拌理念,掌握無軸攪拌機(jī)的工作原理,然后將其與傳統(tǒng)的攪 拌機(jī)進(jìn)行比較,分析其主要優(yōu)點(diǎn)及可能存在的問題以及解決方案。 其次,這次設(shè)計(jì)的重點(diǎn)是對其傳動(dòng)部件的設(shè)計(jì)計(jì)算,我采用的是帶輪加錐齒輪的減 速機(jī)構(gòu),即利用了帶輪的傳動(dòng)遠(yuǎn)距離傳動(dòng)、大傳動(dòng)比,又利用了錐齒輪傳動(dòng)可改變傳動(dòng) 方向的優(yōu)點(diǎn)。通過設(shè)計(jì)計(jì)算達(dá)到了即提高工作效率又能有效地節(jié)約能源的目的。 關(guān)鍵詞: 無軸攪拌機(jī) ;傳動(dòng)部件 ;攪拌機(jī)構(gòu) I Abstract The graduation project is the subject of non-transmission parts mixer shaft design. First of all, the traditional institutions in several common mixing analysis, concluding its work principle and the existence of the frequently asked questions. Understand the current problems of its common solutions. Familiar with the non-axis mixing the concept of master-axis mixer without the working principle, and the mixer with the traditional comparison, analysis of their main advantages and potential problems and solutions. Secondly, this is designed to focus on the design of its drive components, I used the bevel gear pulley increases the speed, namely the use of long-distance transmission of drive pulley, the transmission ratio and the use of a bevel gear transmission can change the direction of the advantages of transmission. Achieved through the design of computing that can effectively improve the efficiency and energy savings. Key words: No shaft mixer;Transmission parts ;Stir agencies II 目 錄 摘 要 .......................................................................................................................................III Abstract...................................................................................................................................IV 目 錄 ........................................................................................................................................V 1 緒論.......................................................................................................................................1 1.1 無軸式攪拌機(jī)研究發(fā)展現(xiàn)狀........................................................................................1 1.2 攪拌機(jī)的各種類型及特點(diǎn)............................................................................................2 1.3 無軸式攪拌機(jī)特點(diǎn)........................................................................................................3 1.4 攪拌機(jī)的分析及設(shè)計(jì)任務(wù)............................................................................................3 1.4.1 攪拌機(jī)常見問題的原因分析.................................................................................3 1.4.2 無軸攪拌的理念.....................................................................................................4 1.4.3 基本設(shè)計(jì)任務(wù).........................................................................................................5 1.4.4 畢業(yè)設(shè)計(jì)的目的.....................................................................................................5 1.5 課題研究背景及意義....................................................................................................5 1.5.1 課題研究背景.........................................................................................................5 1.5.2 課題研究意義.........................................................................................................5 2 傳動(dòng)方案及電動(dòng)機(jī)的選擇...................................................................................................7 2.1 傳動(dòng)方案的選擇............................................................................................................7 2.2 電動(dòng)機(jī)選擇....................................................................................................................8 3 傳動(dòng)比的計(jì)算與分配...........................................................................................................9 3.1 計(jì)算總傳動(dòng)比................................................................................................................9 3.2 傳動(dòng)比的分配...............................................................................................................9 4 傳動(dòng)運(yùn)動(dòng)參數(shù)的計(jì)算.........................................................................................................11 4.1 各級(jí)轉(zhuǎn)速......................................................................................................................11 4.2 各級(jí)的輸入功率..........................................................................................................11 4.3 各級(jí)轉(zhuǎn)矩......................................................................................................................11 5 V 帶輪傳動(dòng)的設(shè)計(jì)計(jì)算 ......................................................................................................13 5.1 設(shè)計(jì)準(zhǔn)則......................................................................................................................13 5.2 原始數(shù)據(jù)及設(shè)計(jì)內(nèi)容..................................................................................................13 5.2.1 原始數(shù)據(jù):...........................................................................................................13 5.2.2 設(shè)計(jì)內(nèi)容:...........................................................................................................13 5.3 設(shè)計(jì)步驟和方法..........................................................................................................13 5.3.1 確定計(jì)算功率 .................................................................................................13caP 5.3.2 選擇帶型...............................................................................................................13 5.3.3 確定帶輪的基準(zhǔn)直徑 和 ..........................................................................131d2 5.3.4 確定中心距和帶輪的基準(zhǔn)長度 ......................................................................14dL III 5.3.5 驗(yàn)算主動(dòng)輪上的包角 .....................................................................................141 5.3.6 單根 V 帶傳遞的額定功率 ..................................................................................15 5.3.7 確定帶的根數(shù) Z ...................................................................................................15 5.3.8 確定帶的預(yù)緊力 ............................................................................................150F 6 V 帶輪設(shè)計(jì) ..........................................................................................................................17 6.1 V 帶輪的設(shè)計(jì)內(nèi)容 .......................................................................................................17 6.2 設(shè)計(jì)要求......................................................................................................................17 6.3 帶輪材料的選擇及結(jié)構(gòu)形式......................................................................................17 6.3.1 材料的選擇...........................................................................................................17 6.3.2 結(jié)構(gòu)形式...............................................................................................................17 6.4 V 帶輪的輪槽 ...............................................................................................................17 6.5 V 帶輪傳動(dòng)的張緊 .......................................................................................................18 7 錐齒輪傳動(dòng)的設(shè)計(jì)計(jì)算.....................................................................................................19 7.1. 選定精度等級(jí),材料及齒數(shù) .....................................................................................19 7.1.1 齒輪精度等級(jí)的選擇............................................................................................19 7.1.2 材料選擇...............................................................................................................19 7.1.3 齒數(shù)選擇...............................................................................................................19 7.2 按齒面接觸強(qiáng)度設(shè)計(jì)..................................................................................................19 7.2.1 確定公式內(nèi)的各計(jì)算數(shù)值...................................................................................20 7.2.2 計(jì)算.......................................................................................................................20 7.3 按齒根彎曲強(qiáng)度設(shè)計(jì)..................................................................................................21 7.3.1 確定公式內(nèi)的各計(jì)算數(shù)值...................................................................................21 7.4 幾何尺寸計(jì)算..............................................................................................................22 7.4.1 計(jì)算分度圓直徑...................................................................................................22 7.4.2 錐距.......................................................................................................................22 7.4.3 計(jì)算齒輪寬度.......................................................................................................22 7.4.4 錐齒輪的結(jié)構(gòu)設(shè)計(jì)...............................................................................................22 8 軸的設(shè)計(jì)計(jì)算.....................................................................................................................25 8.1 I 軸的設(shè)計(jì)計(jì)算(錐齒輪軸) ....................................................................................25 8.1.1 材料.......................................................................................................................25 8.1.2 初定軸的最小直徑...............................................................................................25 8.1.3 根據(jù)軸定位的要求確定軸的各段直徑和長度...................................................25 8.1.4 小錐齒輪的受力分析...........................................................................................26 8.1.5 鍵的校核...............................................................................................................26 8.1.6 I 軸軸承的校核 .....................................................................................................26 8.1.7 軸上載荷的計(jì)算...................................................................................................28 8.1.8 按彎扭合成應(yīng)力校核軸的強(qiáng)度...........................................................................29 IV 8.2 II 軸的設(shè)計(jì)計(jì)算 ...........................................................................................................29 8.2.1 材料.......................................................................................................................29 8.2.2 初定最小直徑.......................................................................................................29 8.2.3 聯(lián)軸器的選擇.......................................................................................................29 8.2.4 根據(jù)軸的定位要求,確定各段直徑和長度.......................................................30 8.2.5 大錐齒輪軸的受力分析.......................................................................................30 8.2.6 鍵的校核...............................................................................................................30 8.2.7 軸承的校核...........................................................................................................30 8.2.8 軸上載荷的計(jì)算...................................................................................................32 8.2.9 按彎扭合成應(yīng)力校核軸的強(qiáng)度...........................................................................33 9 結(jié)論與展望..........................................................................................................................35 致謝.........................................................................................................................................37 參考文獻(xiàn).................................................................................................................................39