重型載貨汽車轉(zhuǎn)向系統(tǒng)設(shè)計【畢業(yè)論文+cad圖紙全套】

1、買文檔就送您CAD圖紙全套，Q號交流401339828或11970985I摘要汽車轉(zhuǎn)向系統(tǒng)分為機(jī)械式轉(zhuǎn)向系統(tǒng)和動力力式式轉(zhuǎn)向系。其中動力式的是在機(jī)械轉(zhuǎn)向器基礎(chǔ)上發(fā)展的。動力轉(zhuǎn)向系統(tǒng)是一套兼用駕駛員體力和發(fā)動機(jī)動力為轉(zhuǎn)向能源的轉(zhuǎn)向系統(tǒng)。在正常情況下，汽車轉(zhuǎn)向所需的能量只有一小部分由駕駛員提供，而大部分能量由發(fā)動機(jī)通過轉(zhuǎn)向加力裝置提供。但在轉(zhuǎn)向加力裝置失效時，一般還應(yīng)當(dāng)能由駕駛員獨(dú)立承擔(dān)汽車轉(zhuǎn)向任務(wù)。本文闡述了針對重型載貨汽車轉(zhuǎn)向器方案的確

2、定，轉(zhuǎn)向傳動機(jī)構(gòu)，轉(zhuǎn)向操縱機(jī)構(gòu)的選擇，轉(zhuǎn)向器的設(shè)計，轉(zhuǎn)向器殼體設(shè)計，在給定前軸滿載軸載質(zhì)量、最高車速、輪胎規(guī)格、最小轉(zhuǎn)彎半徑等條件下，著重對整體循環(huán)球轉(zhuǎn)向器的齒扇軸，轉(zhuǎn)向螺桿，滑閥式常流液壓助力轉(zhuǎn)向助力系統(tǒng)的結(jié)構(gòu)設(shè)計計算。關(guān)鍵詞：重型貨車；整體轉(zhuǎn)向器；傳動機(jī)構(gòu)；操縱機(jī)構(gòu)；結(jié)構(gòu)設(shè)計買文檔就送您CAD圖紙全套，Q號交流401339828或11970985III目錄摘要.....................................

3、...................................................................................................IABSTRACT................................................................................................................

4、............II目錄......................................................................................................................................III第1章緒論..............................................................

5、..............................................................11.1概述................................................................................................................................11.2國內(nèi)外研究現(xiàn)狀.............

6、...............................................................................................21.3設(shè)計研究的主要內(nèi)容....................................................................................................6第2章轉(zhuǎn)向系統(tǒng)方案分析

7、....................................................................................................72.1齒輪齒條式轉(zhuǎn)向器........................................................................................................72.2

8、循環(huán)球式轉(zhuǎn)向器............................................................................................................92.3蝸桿滾輪式轉(zhuǎn)向器.............................................................................................

9、.........102.4蝸桿指銷式轉(zhuǎn)向器......................................................................................................112.5本章小節(jié).......................................................................................

10、...............................12第3章轉(zhuǎn)向系的主要性能參數(shù)..........................................................................................133.1轉(zhuǎn)向系的概述.........................................................................

11、.....................................133.1.1轉(zhuǎn)向操縱機(jī)構(gòu).......................................................................................................133.1.2轉(zhuǎn)向傳動機(jī)構(gòu)......................................................

12、.................................................133.1.3轉(zhuǎn)向器...................................................................................................................143.1.4轉(zhuǎn)角及最小轉(zhuǎn)彎半徑..............................

13、.............................................................153.1.5對轉(zhuǎn)向系的要求...................................................................................................163.2轉(zhuǎn)向系主要性能參數(shù)................................

14、..................................................................173.2.1轉(zhuǎn)向系的效率.......................................................................................................173.2.2轉(zhuǎn)向器的正效率........................

15、...........................................................................183.2.3轉(zhuǎn)向器的逆效率...................................................................................................183.2.4角傳動比.....................

16、..........................................................................................193.2.5力傳動比...............................................................................................................203.2.6轉(zhuǎn)

17、向器傳動副的傳動間隙△t..............................................................................203.2.7轉(zhuǎn)向盤的總轉(zhuǎn)動圈數(shù)...........................................................................................213.3本章小結(jié)..............

18、........................................................................................................21第4章轉(zhuǎn)向器機(jī)械部分的設(shè)計與計算..............................................................................224.1轉(zhuǎn)向系計算載荷的確定.....

19、.........................................................................................224.2循環(huán)球式轉(zhuǎn)向器設(shè)計與計算......................................................................................234.3循環(huán)球式轉(zhuǎn)向器零件強(qiáng)度計算..........