【正文】 .........................................V1 緒論 .............................................................................................................................................1 課來題源及研究的目的和意義 ...........................................................................................1 國內(nèi)外設(shè)備目前的發(fā)展?fàn)顩r ..............................................................................................1 課題研究方法和手段 ...........................................................................................................1 課題應(yīng)達到的基本要求 .......................................................................................................2 翻轉(zhuǎn)機構(gòu)設(shè)計指導(dǎo)思想 ................................................................................................2 設(shè)計任務(wù)書的基本要求 .......................................................................................................22 翻轉(zhuǎn)機構(gòu)整體方案設(shè)計 .............................................................................................................3 總體設(shè)計方案 .......................................................................................................................3 設(shè)計目的 ........................................................................................................................3 設(shè)計原理 ........................................................................................................................3 翻轉(zhuǎn)機構(gòu)系統(tǒng)概述 ................................................................................................................5 翻轉(zhuǎn)機構(gòu)系統(tǒng)組成 .........................................................................................................5 翻轉(zhuǎn)機構(gòu)的工作原理 .....................................................................................................5 翻轉(zhuǎn)機構(gòu)的功能要求 .....................................................................................................5 翻轉(zhuǎn)機構(gòu)總體方案設(shè)計與比較 ............................................................................................5 翻轉(zhuǎn)機構(gòu)總體方案設(shè)計 ................................................................................................5 翻轉(zhuǎn)機構(gòu)的比較選擇 .....................................................................................................83 翻轉(zhuǎn)機構(gòu)結(jié)構(gòu)零部件的設(shè)計 .....................................................................................................9 機構(gòu)框架設(shè)計 ........................................................................................................................9 框架結(jié)構(gòu)材料 .................................................................................................................9 結(jié)構(gòu)的成形方式 ..........................................................................................................10 翻轉(zhuǎn)機構(gòu)軸的設(shè)計 .............................................................................................................10 軸徑的確定 ...................................................................................................................12 軸的結(jié)構(gòu)設(shè)計 ..............................................................................................................12 踏板、轉(zhuǎn)盤及手輪的設(shè)計 .................................................................................................15 平衡塊的設(shè)計 ......................................................................................................................164 標(biāo)準(zhǔn)件的選用 ...........................................................................................................................16 軸承的選擇 ..........................................................................................................................17 軸承的基本概念 ...........................................................................................................17 滾動軸承的主要類型、比較和選擇 ...........................................................................17 軸承型號的確定 ...........................................................................................................20 軸承的壽命 ...................................................................................................................22 其它標(biāo)準(zhǔn)件選用 ..................................................................................................................22 軸承座的選用 ...............................................................................................................22 軸套的選用 ...................................................................................................................23 開口銷的選用 ...............................................................................................................25 壓簧的選用 ..................................................................................................................26 墊片的選用 ..................................................................................................................26 鍵的選用 ......................................................................................................................275 翻轉(zhuǎn)機構(gòu)的焊接與裝配 ...........................................................................................................29 框架的焊接 .........................................................................................................................29 選擇焊接方法 ...............................................................................................................29 確定焊接的形狀、尺寸和下料方法 ...........................................................................29 確定焊接接頭、坡口形式和坡口邊緣的加工方法 ...................................................30 焊接方案的確定 ...........................................................................................................30 零部件的裝配 ......................................................................................................................30 機器裝配的基本概念 ...................................................................................................30 零件在裝配中連接種類 ...............................................................................................31 裝配方法 ......