【正文】 1齒輪齒條機(jī)液壓式助力轉(zhuǎn)向器畢業(yè)論文目 錄摘 要 ........................................................................................................................................................................3第一章 緒論 ..................................................................................................................................................................4 汽車轉(zhuǎn)向系統(tǒng)概述 .............................................................................................................................................4 齒輪齒條式轉(zhuǎn)向器概述 ...................................................................................................................................10 液壓助力轉(zhuǎn)向器概述 .......................................................................................................................................11 國(guó)內(nèi)外發(fā)展情況 ................................................................................................................................................13 本課題研究的目的和意義 ................................................................................................................................13 本文主要研究?jī)?nèi)容 ............................................................................................................................................14第二章 汽車主要參數(shù)的選擇 ....................................................................................................................................15 汽車主要尺寸的確定 ........................................................................................................................................15 汽車質(zhì)量參數(shù)的確定 ........................................................................................................................................17 輪胎的選擇 ........................................................................................................................................................18第三章 轉(zhuǎn)向系設(shè)計(jì)概述 ............................................................................................................................................20 對(duì)轉(zhuǎn)向系的要求 ................................................................................................................................................20 轉(zhuǎn)向操縱機(jī)構(gòu) ....................................................................................................................................................20 轉(zhuǎn)向傳動(dòng)機(jī)構(gòu) ....................................................................................................................................................21 轉(zhuǎn)向器 ................................................................................................................................................................21 轉(zhuǎn)角及最小轉(zhuǎn)彎半徑 ........................................................................................................................................22 .................................................................................................................................24 轉(zhuǎn)向系的效率 ....................................................................................................................................................24 傳動(dòng)比變化特性 ................................................................................................................................................25 轉(zhuǎn)向器傳動(dòng)副的傳動(dòng)間隙△T ..........................................................................................................................27 轉(zhuǎn)向盤的總轉(zhuǎn)動(dòng)圈數(shù) ........................................................................................................................................28第五章 機(jī)械式轉(zhuǎn)向器方案分析及設(shè)計(jì) ....................................................................................................................29 齒輪齒條式轉(zhuǎn)向器 ............................................................................................................................................29 其他轉(zhuǎn)向器 ........................................................................................................................................................31 齒輪齒條式轉(zhuǎn)向器布置和結(jié)構(gòu)形式的選擇 ....................................................................................................32 數(shù)據(jù)的確定 ........................................................................................................................................................325. 5 設(shè)計(jì)計(jì)算過程 ...................................................................................................................................................33 齒輪軸的結(jié)構(gòu)設(shè)計(jì) ............................................................................................................................................37 軸承的選擇 .......................................................................................................................................................37 轉(zhuǎn)向器的潤(rùn)滑方式和密封類型的選擇 ...........................................................................................................38 ...................................................................................................................................................38 2 對(duì)動(dòng)力轉(zhuǎn)向機(jī)構(gòu)的要求 ....................................................................................................................................38 動(dòng)力轉(zhuǎn)向機(jī)構(gòu)布置方案 ....................................................................................................................................38 液壓式動(dòng)力轉(zhuǎn)向機(jī)構(gòu)的計(jì)算 ............................................................................................................................40 動(dòng)力轉(zhuǎn)向的評(píng)價(jià)指標(biāo) ........................................................................................................................................456. 轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)設(shè)計(jì) .................................................................................................................................................47 轉(zhuǎn)向傳動(dòng)機(jī)構(gòu)原理 ...................................................................................................................................