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鹽城工學院機械工程系畢業(yè)設計說明書(論文) 1 目錄 0 引言 ..................................................................1 1 總體設計方案擬定 ......................................................3 1.1 擬定主運動參數(shù)( maxn、 in、Z) ............................................................................3 1.2 運動設計 .....................................................................................................................3 1.3 動力計算和結構草圖設計 .........................................................................................3 1.4 軸和齒輪的驗算 .........................................................................................................3 1.5 主軸變速箱裝配設計 .................................................................................................3 2 參數(shù)擬定 .............................................................4 2.1 車床主參數(shù)(規(guī)格尺寸)和基本參數(shù) ...........................................................................4 2.2 各級轉速的確定 ...........................................................................................................4 3. 運動設計 ............................................................5 3.1 主擬定傳動方案 .........................................................................................................5 3.2 傳動方案的比較 .........................................................................................................5 3.2.1 采用單速電機 ...................................................5 3.2.2 采用雙速電機 ...................................................6 3.3 各級傳動比的計算 .....................................................................................................7 3.4 各軸轉速的確定方法 ..................................................................................................9 3.4.1 Ⅰ軸的轉速 .....................................................9 3.4.2 中間傳動軸的轉速 ..............................................9 3.5 轉速圖擬定 ...............................................................................................................10 4 動力計算 ............................................................11 4.1 齒輪的計算 .................................................................................................................11 4.1 .1 確定齒輪齒數(shù)和模數(shù)(查表法) ....................................11 4.1. 2 確定齒輪的齒數(shù)和模數(shù)(計算法)并校核 ..........................12 4.1. 3 齒輪的精度設計; ..............................................15 4.2 電磁離合器的選擇和使用 .......................................................................................19 5 軸的設計和驗算 .......................................................21 5.1 軸的結構設計 .............................................................................................................21 5.2 軸的強度校核(以Ⅰ軸為例) .....................................................................................21 5.2.1 選擇軸的材料 ....................................................22 數(shù)控車床主傳動機構設計 2 5.2.2 初估軸徑 ........................................................22 5.2.3 結構設計 ........................................................22 5.2. 4 軸的受力分析. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 5.3 軸的剛度校核(以Ⅰ軸為例) .....................................................................................25 6 主軸變速箱的裝配設計 .................................................28 6.1 箱體內結構設計的特點 .............................................................................................28 6.2 設計的方法(以軸的布置為例) .................................................................................28 7 結論 .................................................................31 致謝 ...................................................................32 參考文獻 ...............................................................33 附件清單 ...............................................................34