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目 錄
1. 引言.....................................................................................................................................1
1.1 概述....................................................................................................................................1
1.2 題目的選取........................................................................................................................1
1.3 鋼筋切斷機(jī)的原理............................................................................................................1
2. 電機(jī)選擇............................................................................................................................2
2.1 切斷鋼筋需用力計(jì)算........................................................................................................2
2.2 功率計(jì)算............................................................................................................................3
3. 傳動(dòng)結(jié)構(gòu)設(shè)計(jì)..................................................................................................................5
3.1 基本傳動(dòng)數(shù)據(jù)計(jì)算............................................................................................................5
3.1.1分配傳動(dòng)比......................................................................................................................5
3.1.2 計(jì)算機(jī)構(gòu)各軸的運(yùn)動(dòng)及動(dòng)力參數(shù) ......................................................................... 5
3.2 帶傳動(dòng)設(shè)計(jì)........................................................................................................................6
3.2.1帶型的確定......................................................................................................................6
3.2.2帶輪基準(zhǔn)直徑..................................................................................................................6
3.2.3帶速的確定......................................................................................................................6
3.2.4中心距、帶長(zhǎng)及包角的確定..........................................................................................6
3.2.5確定帶的根數(shù)..................................................................................................................7
3.2.6張緊力............................................................................................................................. 7
3.2.7作用在軸上的載荷..........................................................................................................7
3.2.8帶輪結(jié)構(gòu)與尺寸見(jiàn)零件圖..............................................................................................7
3.3 齒輪傳動(dòng)設(shè)計(jì)....................................................................................................................8
3.3.1第一級(jí)齒輪傳動(dòng)設(shè)計(jì)......................................................................................................8
3.3.2第二級(jí)齒輪傳動(dòng)設(shè)計(jì).....................................................................................................12
3.4 軸的校核...........................................................................................................................15
3.4.1一軸的校核.....................................................................................................................15
3.4.2三軸的校核.....................................................................................................................19
3.5 平鍵的校核.......................................................................................................................22
3.6 軸承的校核..........................................................................................................................23
3.6.1初選軸承型號(hào).................................................................................................................23
3.6.2壽命計(jì)算.........................................................................................................................24
4.模型的建立及其運(yùn)動(dòng)仿真...........................................................................................27
4.1 Pro/E簡(jiǎn)介........................................................................................................................27
4.1.1基于特征.....................................................................................................................27
4.1.2參數(shù)化設(shè)計(jì).................................................................................................................27
4.2基本結(jié)構(gòu)............................................................................................................................27
4.3鋼筋切斷機(jī)模型的建立....................................................................................................28
4.3.1箱體模型的建立...........................................................................................................28
4.3.2齒輪及齒輪軸模型的建立............................................................................................28
4.3.3其他零部件模型的建立................................................................................................30
4.4虛擬裝配..............................................................................................................................36
4.4.1模塊化的虛擬裝配........................................................................................................36
4.4.2裝配過(guò)程中出現(xiàn)的常見(jiàn)問(wèn)題及解決方法...................................................................36
4.5運(yùn)動(dòng)仿真..............................................................................................................................37
4.5.1建立運(yùn)動(dòng)機(jī)構(gòu)仿真的一般步驟.......................................................................................38
4.5.2鋼筋切斷機(jī)運(yùn)動(dòng)仿真實(shí)現(xiàn)................................................................................................38
4.5.3保存結(jié)果............................................................................................................................40
4.6本章小結(jié)................................................................................................................................41
5. 總結(jié)................................................................................................................................42
參考文獻(xiàn)..................................................................................................................................43
致謝............................................................................................................................................44
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