【正文】 ..................4 根據(jù)總體布置要求確定變速箱外形尺寸允許范圍...........................5 草擬變速箱的傳動方案.......................................................................5 變速箱主要參數(shù)的確定.......................................................................6 齒輪模數(shù)的確定......................................................................6 齒輪壓力角的確定..................................................................6 齒寬的確定..............................................................................6 相齒合齒輪的齒數(shù)和.........................................................8 選配齒輪.....................................................................................8 變速箱主要零件的計算.............................................................................9 齒輪的計算....................................................................................9 軸的計算......................................................................................12 軸承的計算...................................................................................164 主要零件的布置要點及倒檔和減速器的布置方案............................... .. 18 變速箱主要零件的布置要點.................................................................18 倒檔和減速器的布置方案.....................................................................18 倒檔布置方案.............................................................................18 減速器布置方案.........................................................................195 變速箱殼和操縱機構(gòu)的設(shè)計.......................................................................19 變速箱殼的設(shè)計....................................................................................19 變速箱操縱機構(gòu)的設(shè)計........................................................................19 ................................................................................. ..20 ......................................................................................20參考文獻.............................................................................................................21致 謝........................................................................................................... .. 22附 錄 ................................................................................................... ........ 221 各檔的傳動簡圖...........................................................................................23 慢Ⅰ檔的傳動簡圖.............................................................................. .23 慢Ⅱ檔的傳動簡圖............................................................................. ..23 慢Ⅲ檔的傳動簡圖................................................................................ 23 慢Ⅳ檔的傳動簡圖.............................................................................. .24 慢Ⅴ檔的傳動簡圖................................................................................24 快Ⅰ檔的傳動簡圖................................................................................25 快Ⅱ檔的傳動簡圖................................................................................25 快Ⅲ檔的傳動簡圖................................................................................26 快Ⅳ檔的傳動簡圖................................................................................26 快Ⅴ檔的傳動簡圖..............................................................................26 倒Ⅰ檔的傳動簡圖..............................................................................27 倒Ⅱ檔的傳動簡圖..............................................................................272 變速箱各檔次的傳動路線及傳動比...........................................................273 變速箱內(nèi)各齒輪分布圖...............................................................................284 直齒圓柱齒輪參數(shù).......................................................................................295 變速箱中間軸上漸開線花鍵參數(shù)...............................................................316 第二軸齒輪參數(shù)...........................................................................................327 三，四速滑動齒輪的齒輪參數(shù)...................................................................338 三速主動齒輪的齒輪參數(shù)........................