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鹽城工學(xué)院機(jī)械工程系畢業(yè)設(shè)計(jì)說明書（論文） 1 目錄 0 引言 ..................................................................1 1 總體設(shè)計(jì)方案擬定 ......................................................3 1．1 擬定主運(yùn)動(dòng)參數(shù)( maxn、 in、Z) ............................................................................3 1．2 運(yùn)動(dòng)設(shè)計(jì) .....................................................................................................................3 1．3 動(dòng)力計(jì)算和結(jié)構(gòu)草圖設(shè)計(jì) .........................................................................................3 1．4 軸和齒輪的驗(yàn)算 .........................................................................................................3 1．5 主軸變速箱裝配設(shè)計(jì) .................................................................................................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(zhuǎn)速的確定 ...........................................................................................................4 3． 運(yùn)動(dòng)設(shè)計(jì) ............................................................5 3．1 主擬定傳動(dòng)方案 .........................................................................................................5 3．2 傳動(dòng)方案的比較 .........................................................................................................5 3．2．1 采用單速電機(jī) ...................................................5 3．2．2 采用雙速電機(jī) ...................................................6 3．3 各級傳動(dòng)比的計(jì)算 .....................................................................................................7 3．4 各軸轉(zhuǎn)速的確定方法 ..................................................................................................9 3．4．1 Ⅰ軸的轉(zhuǎn)速 .....................................................9 3．4．2 中間傳動(dòng)軸的轉(zhuǎn)速 ..............................................9 3．5 轉(zhuǎn)速圖擬定 ...............................................................................................................10 4 動(dòng)力計(jì)算 ............................................................11 4.1 齒輪的計(jì)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(jì)算法）并校核 ..........................12 4．1. 3 齒輪的精度設(shè)計(jì)； ..............................................15 4.2 電磁離合器的選擇和使用 .......................................................................................19 5 軸的設(shè)計(jì)和驗(yàn)算 .......................................................21 5.1 軸的結(jié)構(gòu)設(shè)計(jì) .............................................................................................................21 5.2 軸的強(qiáng)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(dòng)機(jī)構(gòu)設(shè)計(jì) 2 5.2.2 初估軸徑 ........................................................22 5.2.3 結(jié)構(gòu)設(shè)計(jì) ........................................................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(shè)計(jì) .................................................28 6.1 箱體內(nèi)結(jié)構(gòu)設(shè)計(jì)的特點(diǎn) .............................................................................................28 6.2 設(shè)計(jì)的方法(以軸的布置為例) .................................................................................28 7 結(jié)論 .................................................................31 致謝 ...................................................................32 參考文獻(xiàn) ...............................................................33 附件清單 ...............................................................34