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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì) 目 錄 摘要...................................................................................................................................Ⅰ Abstract.............................................................................................................................Ⅱ 第 1 章 緒論 .................................................................................................................1 1.1 轉(zhuǎn)向系概述..........................................................................................................1 1.2 汽車(chē)轉(zhuǎn)向系統(tǒng)的現(xiàn)狀及發(fā)展趨勢(shì)......................................................................1 第 2 章 汽車(chē)轉(zhuǎn)向系方案的設(shè)計(jì)..............................................................................5 2.1 轉(zhuǎn)向系主要性能參數(shù).........................................................................................5 2.1.1 轉(zhuǎn)向器的效率...........................................................................................5 2.1.2 傳動(dòng)比的變化特性 .................................................................................7 2.1.3 轉(zhuǎn)向器傳動(dòng)副的傳動(dòng)間隙......................................................................10 2.1.4 轉(zhuǎn)向盤(pán)的總轉(zhuǎn)動(dòng)圈數(shù)..............................................................................10 2.2 轉(zhuǎn)向系的選擇.....................................................................................................10 2.2.1 機(jī)械轉(zhuǎn)向系..............................................................................................10 2.2.2 動(dòng)力轉(zhuǎn)向系..............................................................................................12 第 3 章 汽車(chē)轉(zhuǎn)向器方案的設(shè)計(jì).............................................................................14 3.1 機(jī)械式轉(zhuǎn)向器的選擇.........................................................................................14 3.1.1 齒輪齒條式轉(zhuǎn)向器..................................................................................14 3.1.2 循環(huán)球式轉(zhuǎn)向器......................................................................................14 3.1.3 蝸桿滾輪式轉(zhuǎn)向器..................................................................................15 3.1.4 蝸桿指銷(xiāo)式轉(zhuǎn)向器..................................................................................16 第 4 章 汽車(chē)轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)的設(shè)計(jì).........................................................................17 4.1 轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)的選擇.........................................................................................17 4.1.1 與非獨(dú)立懸架配用的轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)......................................................17 4.1.2 與獨(dú)立懸架配用的轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)..........................................................18 4.2 轉(zhuǎn)向梯形的選擇.................................................................................................20 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì) 4.2.1 整體式轉(zhuǎn)向梯形....................................................................................20 4.2.2 斷開(kāi)式轉(zhuǎn)向梯形....................................................................................21 第 5 章 轉(zhuǎn)向系的設(shè)計(jì)計(jì)算.....................................................................................23 5.1 轉(zhuǎn)向器的結(jié)構(gòu)型式選擇及其設(shè)計(jì)計(jì)算...........................................................23 5.1.1 螺桿—鋼球—螺母?jìng)鲃?dòng)副的設(shè)計(jì)........................................................23 5.1.2 齒條、齒扇傳動(dòng)副的設(shè)計(jì)....................................................................27 5.1.3 循環(huán)球式轉(zhuǎn)向器零件強(qiáng)度計(jì)算............................................................32 5.2 整體式轉(zhuǎn)向梯形結(jié)構(gòu)優(yōu)化設(shè)計(jì).......................................................................36 5.3 轉(zhuǎn)向系結(jié)構(gòu)元件...............................................................................................41 結(jié)論.................................................................................................................................44 參考文獻(xiàn)........................................................................................................................45 致謝.................................................................................................................................46 附錄.................................................................................................................................47