【正文】 ..................................................5 零部件結(jié)構(gòu)方案設(shè)計 ................................................................................................6 ..................................................................................................................6 ..................................................................................................................6 ..................................................................................................6 3 變速器主要參數(shù)的設(shè)計與計算 ......................................................... 7 檔數(shù)的選擇 ................................................................................................................7 傳動比的確定 ............................................................................................................7 ..................................................................................................8 ..............................................................................................8 中心距的確定 ............................................................................................................9 外形尺寸的初選 ........................................................................................................9 齒數(shù)參數(shù)的 選擇 ........................................................................................................9 ..........................................................................................................................9 ....................................................................................................................10 ....................................................................................................................10 ........................................................................................................................ 11 各檔齒輪齒數(shù)分配 ..................................................................................................12 ................................................................................................12 ................................................................................................12 ....................................................................................................12 變速器齒輪 的 變位 ..................................................................................................16 ....................................................................................................17 ....................................................................................................17 4 變速器 的 齒輪與軸的設(shè)計計算及校核 ............................................ 17 齒輪的設(shè)計與計算 ..................................................................................................17 桂林電子科技大學(xué)畢業(yè)設(shè)計（論文）報告用紙 ....................................................................................................18 ............................................................................................18 ....................................................................................................18 ........................................................................................................19 軸的設(shè)計與計算 ......................................................................................................24 ........................................................................................................24 ........................................................................................................25 ........................................................................................................26 ................................................................................................26 ........................................................................................................27 軸承的選擇與校核 ..................................................................................................32 ....................................................................................32 ....................................................................................34 5 變速器同步器及操縱機構(gòu)的選擇 ................................................... 35 同步器 的選擇 ..........................................................................................................35 ....................................................................................................35 ............................................................................................................35 操縱機構(gòu)的選擇 ......................................................................................................37 ........................................................................................................................37 ........................................................................................................37 ....................................................................................................38 6 變速器殼體的設(shè)計 .......................................................................... 39 7 工藝過程分析 ................................................................................. 40 齒輪加工工藝分析 ..................................................................................................40 變速器裝配過程工藝分析 ......................................................................................41 8 結(jié)論 ................................................................................................ 42 謝辭 ...................................................................................................... 43 參考文獻 ..