起亞獅跑驅(qū)動(dòng)橋后橋設(shè)計(jì)【說(shuō)明書+CAD+PROE】

起亞獅跑驅(qū)動(dòng)橋后橋設(shè)計(jì)【說(shuō)明書+CAD+PROE】,說(shuō)明書+CAD+PROE,起亞獅跑驅(qū)動(dòng)橋后橋設(shè)計(jì)【說(shuō)明書+CAD+PROE】,起亞獅跑,驅(qū)動(dòng),后橋,設(shè)計(jì),說(shuō)明書,仿單,cad,proe SY-025-BY-1畢業(yè)設(shè)計(jì)（論文）題目審定表指導(dǎo)教師姓名王悅新職稱實(shí)驗(yàn)師從事專業(yè)車輛工程是否外聘是否題目名稱起亞獅跑驅(qū)動(dòng)橋設(shè)計(jì)課題適用專業(yè)車輛工程課題類型Z 課題簡(jiǎn)介：（主要內(nèi)容、意義、現(xiàn)有條件、預(yù)期成果及表現(xiàn)形式。）主要內(nèi)容：（1）分析此汽車后橋的結(jié)構(gòu)特點(diǎn)及布置方式，并確定驅(qū)動(dòng)橋的基本尺寸數(shù)據(jù)；通過(guò)網(wǎng)絡(luò)查找有關(guān)此車型的一些基本數(shù)據(jù)。（2）運(yùn)用AutoCAD軟件繪制后橋的裝配圖及主要零件圖。（3）完成設(shè)計(jì)說(shuō)明書。意義：培養(yǎng)正確的研究方法、理論聯(lián)系實(shí)際的工作作風(fēng)、嚴(yán)肅求實(shí)的學(xué)習(xí)態(tài)度。綜合運(yùn)用了機(jī)械設(shè)計(jì)、工程材料、汽車設(shè)計(jì)、汽車構(gòu)造、CAD繪圖等知識(shí)?，F(xiàn)有條件：有部分資料積累。預(yù)期成果：設(shè)計(jì)說(shuō)明書；裝配圖。表現(xiàn)形式：設(shè)計(jì)說(shuō)明書。 指導(dǎo)教師簽字： 年 月 日教研室意見(jiàn)1選題與專業(yè)培養(yǎng)目標(biāo)的符合度好較好一般較差2對(duì)學(xué)生能力培養(yǎng)及全面訓(xùn)練的程度好較好一般較差3選題與生產(chǎn)、科研、實(shí)驗(yàn)室建設(shè)等實(shí)際的結(jié)合程度好較好一般較差4論文選題的理論意義或?qū)嶋H價(jià)值好較好一般較差5課題預(yù)計(jì)工作量較大適中較小6課題預(yù)計(jì)難易程度較難一般較易 教研室主任簽字： 年 月 日系（部）教學(xué)指導(dǎo)委員會(huì)意見(jiàn)： 負(fù)責(zé)人簽字： 年 月 日注：課題類型填寫 W.科研項(xiàng)目；X.生產(chǎn)（社會(huì)）實(shí)際；Y.實(shí)驗(yàn)室建設(shè)；Z.其它。附 錄附錄AHeavy Off-Road Vehicle Drive Axle Of BreakingThe important thing is, in the great assembly at the end of the transmission. Its basic function is increased by the transmission shaft or directly by the torque, came to the torque distribution to left and right drive wheels, and make the right and left wheel drive car has required the kinematics differential function, While carrying the spring load and the car wheel, the frame of the body through suspension or integral to plumb-lines, longitudinal and transverse force and moment force, Also the biggest transfer transmission torque, still under the bridge housing reaction torque.Drive structure and driving wheel is closely related to the suspension structure. When driving wheel using an independent suspension, using the broken open axles, When driving wheels adopt independent suspension, match with breaking drive axles, independent suspension. Look from exterior, independent suspension axles connectionless left and right of the whole bridge rigid driving wheel, shell is bridge housing, and other relative movement between. This bridge is installed in the middle frame or integral car transmission and driving wheel transmission device and part of the quality of the automobile suspension with belong to the quality and the side of the drive wheels with independent suspension of elastic component and frame or weak connection for cars. Therefore, one on either side of the drive wheels can independently, relative to the frame or cars do, swing, left, and right shaft corresponding requirements and their corresponding shell makes the corresponding swing. Cars drive by breaking the suspension, and the quality of small and independent suspension matching, can make the driving wheels of various earthing and adaptability, good roads that can greatly reduce the cars in the rough road impact and vibration during the body decreases wheel and axle tilt, the dynamic loads of vehicle, improve and enhance average speed, Reduce the damage, improve its components reliability and prolong its service life.Based on the development of Chinas heavy independent suspension of six x 6 cross-country car cut off from the drive axles, for example, is insufficient, the development technology independent suspension drive axle of necessity and independent suspension drive axle of structural principle in aspects of heavy off-road vehicle drive with independent suspension of this development.1 Domestic independent suspension drive technology situationAt present domestic independent suspension axles in cars, light off-road vehicle and JN252 8 x 8, etc ZhongDunWei military car has been applied and independent suspension heavy off-road vehicle axles technology is basically blank, Foreign independent suspension heavy off-road vehicle axles technology also only by American company, belarus, Minsk Sisu, Finland has TIMONEY company and Korea etc, and application scope of military and civilian limitations in some special models.2 Develop independent suspension drive axle of necessityIn recent years, with independent suspension off-road vehicle market demand more and more widely. Restrict independent suspension off-road vehicle development is one of the key factors, thus breaking drive axles of the necessity of developing broken off.2.1Military car development needsCurrently our extensive use of grade 6 x 6 type 7t SX2190 models is shaanxi automobile manufacturing factory using STEYR technology development of new generation rover, has good performance, and strong adaptability, good performance advantages over the past 20 years for national defense construction made great contribution. The truck with 8 x 8 upward-leading continuous casting.the JN2270 15t and capability of type x 8 August JN2300 type, the successful development of Chinas second DaiJun car development was at an end. In order to adapt to the needs of modern war, the third DaiJun car development was put on the agenda. Article DaiJun car features for independent suspension of high performance of motor vehicles. As its core technology is one of the big Hollywood drive shaft cut off, domestic blank, basic is dependence on imports, if do not accord with national also does not conform to the military.2.2The basic needs of national constructionFor many years, our national economy is developing rapidly, and infrastructure investment growth, hydroelectric power, oil field, mine, coal and other industries such as fire like tea. The industry is inseparable from the high quality, the high performance of transport vehicles, independent suspension off-road vehicle is among the top. However, these vehicles almost entirely on imports, spent a great deal of foreign exchange. To develop a replacement model is of great significance to meet the market demand.3 Independent suspension structure theory. Drive axle ofChinas heavy automobile group company with development and production status, independent development drive axle of the independent suspension 6 x 6 cross-country car drive shaft cut off big Hollywood. According to 6 x 6 independent suspension chassis design requirements, in this model adopted high transmission fault type axles. The first thing is to cut off to drive, high of double bridge for breaking through the medium-sized Bridges, rear axles turn for breaking steering of high axles. Three bridge are installed with gas control differential between the wheel lock differential, medium-sized Bridges across the bridge box installed with gas control differential between the lock shaft differential. Main reducer ratio for 1 2023, gear ratio for 4. 26 (belt wheel side filling put gas system, ABS), the total ratio 7.016, The medium-sized Bridges for 180 input end tooth flanges, output for 165 end flange, rear axle gears before the input for 165 end tooth flange, Each shaft axis for jose 13t. This design is mainly in steyr drive technology based on the development and design, design thoughts and 6 x is 6, 8 x 8, 10 December 10, military USES 10 series assemblies, reduce the new design of special parts. 8 x 8 middle bridge, 10 assembly, 10, and 12 million spxillion structure types are similar. The new design two broken open bridge, front axle shell adopts the breakthrough in the shell, type of bridge, using the same type of the rear axle housing learnings. On the basis of that, left, right, two kinds of half axle and cover and spline set assembly, and on the reduction and bridge box shell and the local improvement. High technology to drive the corresponding design. Before using high to drive axle of bridge structure, thus make the box with the same drive axle of center distance of the bridge, i.e. input than the original structure of flange steyr 100mm up front axle and bridge, can satisfy the same height flange vehicle transmission Angle to decorate the small request. Before turning mainly by high drive axles, before breaking casting bridge in the middle of the disc brake, using the shell with the filling of the deflated wheelhub ball cage patterned assembly, universal shaft coupling assembly etc. And now the thing turn compared with has the following characteristics: Using steel bridge housing, good rigidity, high strength. Using steyr mature main reducer and axle box of bridge structure of the existing technology (without prior to drive axle box structure), improve cross the bridge reliability.Using the ball cage patterned double gimbal couplings, can make the centerline of ball cage with to the center of the kingpin always in line with the wheels, reduce sliding wear.4 conclusionWith independent suspension car of rapid development, large-tonnage breaking drive axle of development of necessity and urgency. It not only can greatly improve the car ride and mobility, also for automobile driving performance such as power, economy, and has a direct impact on the stability, etc. Both can satisfy the military modernization needs, also can meet the needs of the development of national economy, therefore has the important practical significance.附 錄B重型越野汽車斷開式驅(qū)動(dòng)橋的研發(fā)驅(qū)動(dòng)橋是汽車的重要大總成 ,處于傳動(dòng)系的末端。其基本功能是增大由傳動(dòng)軸或直接由變速箱傳來(lái)的轉(zhuǎn)矩 ,將轉(zhuǎn)矩分配給左、右驅(qū)動(dòng)車輪 ,并使左、右車輪具有汽車行駛運(yùn)動(dòng)學(xué)所要求的差速功能 ;同時(shí)承載著汽車的簧上荷重及地面經(jīng)車輪、車架或承載式車身經(jīng)懸架給予鉛垂力、縱向力、橫向力及其力矩 ;還傳遞著傳動(dòng)系中的最大轉(zhuǎn)矩 ,橋殼還承受著反作用力矩。驅(qū)動(dòng)橋的結(jié)構(gòu)型式與驅(qū)動(dòng)車輪的懸架結(jié)構(gòu)密切相關(guān)。當(dāng)驅(qū)動(dòng)車輪采用非獨(dú)立懸架時(shí),采用非斷開式驅(qū)動(dòng)橋;當(dāng)驅(qū)動(dòng)車輪采用獨(dú)立懸架時(shí),則配以斷開式驅(qū)動(dòng)橋,即獨(dú)立懸架驅(qū)動(dòng)橋。從外觀上看,獨(dú)立懸架驅(qū)動(dòng)橋無(wú)連接左、右驅(qū)動(dòng)輪的剛性整體橋殼,它的橋殼是分段的,且彼此之間可作相對(duì)運(yùn)動(dòng)。這種橋的中段安裝在車架或承載式車身上,并與傳動(dòng)軸及一部分驅(qū)動(dòng)車輪傳動(dòng)裝置的質(zhì)量同屬于汽車的懸掛質(zhì)量,而兩側(cè)的驅(qū)動(dòng)車輪則以獨(dú)立懸架的彈性元件與車架或車廂作弱性聯(lián)接。因此,兩側(cè)的驅(qū)動(dòng)車輪可以彼此獨(dú)立地相對(duì)于車架或車廂做上、下擺動(dòng),相應(yīng)要求左、右半軸及其相應(yīng)外殼作相應(yīng)的擺動(dòng)。汽車采用斷開式驅(qū)動(dòng)橋,則非懸掛質(zhì)量小而且它又與獨(dú)立懸架相匹配,可使驅(qū)動(dòng)輪接地情況及對(duì)各種路況適應(yīng)性較好,這樣便可大大減少汽車在不平路面上行駛時(shí)振動(dòng)沖擊和車身的傾斜,減小車輪和車橋上的動(dòng)載荷,提高汽車的行駛平順性,提高汽車平均行駛速度;減少零件的損壞,提高其可靠性并延長(zhǎng)其使用壽命。本文以中國(guó)重汽研制開發(fā)的獨(dú)立懸架66越野汽車的斷開式驅(qū)動(dòng)橋?yàn)槔?從驅(qū)動(dòng)橋技術(shù)現(xiàn)狀的不足、開發(fā)獨(dú)立懸架驅(qū)動(dòng)橋的必要性及獨(dú)立懸架驅(qū)動(dòng)橋的結(jié)構(gòu)原理等方面對(duì)重型越野汽車用獨(dú)立懸架驅(qū)動(dòng)橋的開發(fā)作以闡述。1國(guó)內(nèi)獨(dú)立懸架驅(qū)動(dòng)橋技術(shù)現(xiàn)狀目前國(guó)內(nèi)獨(dú)立懸架驅(qū)動(dòng)橋在轎車、輕型越野車及JN252 88等中噸位軍用車上得到了應(yīng)用,而獨(dú)立懸架重型越野汽車驅(qū)動(dòng)橋技術(shù)基本上是空白;國(guó)外獨(dú)立懸架重型越野汽車驅(qū)動(dòng)橋技術(shù)也只有美國(guó)美馳公司、白俄羅斯明斯克、芬蘭Sisu公司及韓國(guó)TIMONEY等具有,且應(yīng)用范圍局限于軍用及民用的一些特殊車型。2開發(fā)獨(dú)立懸架驅(qū)動(dòng)橋的必要性近年來(lái),對(duì)獨(dú)立懸架越野汽車的市場(chǎng)需求越來(lái)越廣。制約獨(dú)立懸架越野汽車發(fā)展的關(guān)鍵因素之一是斷開式驅(qū)動(dòng)橋,因此開發(fā)斷開式驅(qū)動(dòng)橋的必要性凸現(xiàn)。2.1軍用汽車發(fā)展的需要目前我軍大量使用的7t級(jí)66型SX2190車型是陜西汽車制造總廠利用STEYR技術(shù)研制的新一代越野車,具有動(dòng)力性好、適應(yīng)性強(qiáng)、越野性能優(yōu)良等優(yōu)點(diǎn),近20年來(lái)為國(guó)防建設(shè)作出了巨大貢獻(xiàn)。隨著載重12t的88型JN2270和載重15t的88型JN2300的研制成功,我國(guó)第二代軍車系列的開發(fā)便劃上了句號(hào)。為適應(yīng)現(xiàn)代化戰(zhàn)爭(zhēng)的需要,第三代軍車的開發(fā)便提上了日程。第三代軍車主要特點(diǎn)為獨(dú)立懸掛的高機(jī)動(dòng)性能車輛。作為其核心技術(shù)之一的大軸荷斷開式驅(qū)動(dòng)橋,國(guó)內(nèi)基本是空白,若依賴進(jìn)口,既不符合國(guó)情也不符合軍情。2.2國(guó)家基本建設(shè)的需要多年來(lái),我國(guó)的國(guó)民經(jīng)濟(jì)飛速發(fā)展,基建投資規(guī)模大幅增長(zhǎng),水電、油田、礦山及煤炭等行業(yè)更是如火如茶。這些行業(yè)都離不開高品質(zhì)、高性能的運(yùn)輸車輛,獨(dú)立懸架越野汽車更是其中的佼佼者。但是,這些車輛幾乎全部依賴進(jìn)口,花費(fèi)了大量外匯。盡快開發(fā)出一種替代車型滿足市場(chǎng)需求意義重大。3獨(dú)立懸架驅(qū)動(dòng)橋的結(jié)構(gòu)原理中國(guó)重型汽車集團(tuán)公司結(jié)合開發(fā)生產(chǎn)驅(qū)動(dòng)橋的現(xiàn)狀,自主開發(fā)了獨(dú)立懸架66越野汽車大軸荷斷開式驅(qū)動(dòng)橋。根據(jù)66獨(dú)立懸掛底盤的設(shè)計(jì)要求,在該車型上采用了高位傳動(dòng)斷開式驅(qū)動(dòng)橋。其中前轉(zhuǎn)向驅(qū)動(dòng)橋?yàn)閿嚅_式高位轉(zhuǎn)向非貫通驅(qū)動(dòng)橋,雙聯(lián)橋的中橋?yàn)閿嚅_式貫通非轉(zhuǎn)向驅(qū)動(dòng)橋,后橋?yàn)閿嚅_式轉(zhuǎn)向非貫通高位驅(qū)動(dòng)橋。三個(gè)橋均裝設(shè)帶氣控差速鎖的輪間差速器,中橋過(guò)橋箱裝設(shè)帶氣控差速鎖的軸間差速器。主減速器速比為1. 647,輪邊減速器速比為4. 26(帶輪邊充放氣系統(tǒng)、ABS),總速比7.016;中橋的輸入端為180端面齒法蘭,輸出端為165端面齒法蘭,前、后橋的輸入端為165端面齒法蘭;各軸軸荷均為13t。本次設(shè)計(jì)主要是在斯太爾驅(qū)動(dòng)橋技術(shù)的基礎(chǔ)上進(jìn)行開發(fā)設(shè)計(jì),設(shè)計(jì)思想是和已有的66、88、1010、1210軍車所用總成形成系列,盡量減少新設(shè)計(jì)的專用件。橋中段總成88、1010、1210結(jié)構(gòu)類型均類同。新設(shè)計(jì)兩種斷開式橋殼,前橋采用非貫通式橋殼,中、后橋相同的采用貫通式橋殼。在此基礎(chǔ)上,設(shè)計(jì)左、右兩種半軸及端蓋和花鍵套總成,并對(duì)主減殼和和過(guò)橋箱作了局部改進(jìn)。同時(shí)對(duì)高位驅(qū)動(dòng)橋技術(shù)進(jìn)行了相應(yīng)的設(shè)計(jì)。前轉(zhuǎn)向高位驅(qū)動(dòng)橋采用貫通橋的過(guò)橋箱結(jié)構(gòu),從而使該驅(qū)動(dòng)橋跟貫通橋具有相同的中心距,即該橋的輸入法蘭比斯太爾前橋原結(jié)構(gòu)抬高了100mm,與貫通橋的法蘭高度相同,能滿足整車布置傳動(dòng)軸夾角盡量小的要求。前轉(zhuǎn)向驅(qū)動(dòng)橋主要由高位前驅(qū)動(dòng)橋中段、斷開式鑄造橋殼、采用盤式制動(dòng)器的帶中央充放氣構(gòu)的輪邊減速器總成、雙球籠等速萬(wàn)向聯(lián)軸器總成等組成。與現(xiàn)用的轉(zhuǎn)向驅(qū)動(dòng)橋相比有以下特點(diǎn):采用鑄鋼橋殼,剛性好,強(qiáng)度高。采用成熟的斯太爾主減速器及其貫通橋結(jié)構(gòu)的過(guò)橋箱技術(shù)(現(xiàn)有技術(shù)的前轉(zhuǎn)向驅(qū)動(dòng)橋無(wú)過(guò)橋箱結(jié)構(gòu)),提高了整橋的可靠性。采用自定心的雙球籠等速萬(wàn)向聯(lián)軸器,可使球籠中心線與轉(zhuǎn)向主銷的中心線始終在一條線上,減少車輪滑移與磨損。4結(jié)束語(yǔ)隨著獨(dú)立懸架汽車的快速發(fā)展，大噸位斷開式驅(qū)動(dòng)橋的開發(fā)具有現(xiàn)實(shí)的緊迫性和必要性。它不僅可以大大提高汽車的平順性與機(jī)動(dòng)性,也對(duì)汽車的行駛性能如動(dòng)力性、經(jīng)濟(jì)性、通過(guò)性、操縱穩(wěn)定性等有直接影響。既能滿足軍隊(duì)現(xiàn)代化建設(shè)需要,也能滿足國(guó)家經(jīng)濟(jì)發(fā)展的需要,因此具有重要現(xiàn)實(shí)意義。7SY-025-BY-5畢業(yè)設(shè)計(jì)（論文）中期檢查表填表日期2011年 4月26 日迄今已進(jìn)行 8 周剩余 9 周學(xué)生姓名王龍君系部汽車工程系專業(yè)、班級(jí)車輛工程B07-6指導(dǎo)教師姓名王悅新職稱實(shí)驗(yàn)師從事專業(yè)車輛工程是否外聘是否題目名稱起亞獅跑驅(qū)動(dòng)橋設(shè)計(jì)學(xué)生填寫畢業(yè)設(shè)計(jì)（論文）工作進(jìn)度已完成主要內(nèi)容待完成主要內(nèi)容1完成開題報(bào)告2完成參數(shù)選擇與設(shè)計(jì)計(jì)算3說(shuō)明書的編寫4 CAD圖紙的繪制1說(shuō)明書的修改2完善圖紙存在問(wèn)題及努力方向 在進(jìn)行CAD圖紙的繪制過(guò)程中，有許多錯(cuò)誤，在以后的時(shí)間里對(duì)其逐步的修改。學(xué)生簽字： 指導(dǎo)教師意 見(jiàn) 指導(dǎo)教師簽字： 年 月 日教研室意 見(jiàn)教研室主任簽字： 年 月 日畢業(yè)設(shè)計(jì)（論文）開題報(bào)告設(shè)計(jì)（論文）題目: 起亞獅跑驅(qū)動(dòng)橋后橋設(shè)計(jì) 院 系 名 稱: 汽車與交通工程學(xué)院 專 業(yè) 班 級(jí): 車輛工程BW07-6 學(xué) 生 姓 名: 王龍君 導(dǎo) 師 姓 名: 王悅新 開 題 時(shí) 間: 2011年3月2日 指導(dǎo)委員會(huì)審查意見(jiàn)： 簽字： 年 月 日開題報(bào)告撰寫要求一、“開題報(bào)告”參考提綱1. 課題研究目的和意義；2. 文獻(xiàn)綜述（課題研究現(xiàn)狀及分析）；3. 基本內(nèi)容、擬解決的主要問(wèn)題；4. 技術(shù)路線或研究方法；5. 進(jìn)度安排；6. 主要參考文獻(xiàn)。二、“開題報(bào)告”撰寫規(guī)范請(qǐng)參照黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)說(shuō)明書及畢業(yè)論文撰寫規(guī)范要求。字?jǐn)?shù)應(yīng)在4000字以上，文字要精練通順，條理分明，文字圖表要工整清楚。 畢業(yè)設(shè)計(jì)（論文）開題報(bào)告學(xué)生姓名王龍君系部汽車工程系專業(yè)、班級(jí)車輛工程BW07-6指導(dǎo)教師姓名王悅新職稱實(shí)驗(yàn)師從事專業(yè)車輛工程是否外聘是否題目名稱汽車驅(qū)動(dòng)橋設(shè)計(jì)一、課題研究現(xiàn)狀、選題目的和意義1、研究現(xiàn)狀汽車驅(qū)動(dòng)橋是汽車傳動(dòng)系統(tǒng)的重要組成，承載著汽車的滿載荷重及地面經(jīng)車輪、車架給予的垂直力、縱向力、橫向力及其力矩，以及沖擊載荷,驅(qū)動(dòng)橋還傳遞著傳動(dòng)系中的最大轉(zhuǎn)矩。汽車驅(qū)動(dòng)橋的結(jié)構(gòu)型式和設(shè)計(jì)參數(shù)對(duì)汽車動(dòng)力性、經(jīng)濟(jì)性、平順性、通過(guò)性有直接影響。驅(qū)動(dòng)橋結(jié)構(gòu)型式的選擇與設(shè)計(jì)參數(shù)選取及設(shè)計(jì)計(jì)算對(duì)汽車的整車設(shè)計(jì)和性能極其重要。傳統(tǒng)的驅(qū)動(dòng)橋設(shè)計(jì)是以生產(chǎn)經(jīng)驗(yàn)為基礎(chǔ),以運(yùn)用力學(xué)、數(shù)學(xué)和回歸方法形成的公式、圖表、手冊(cè)為依據(jù)進(jìn)行的。目前國(guó)外的驅(qū)動(dòng)橋設(shè)計(jì)與研發(fā)的技術(shù)已經(jīng)非常的成熟，其驅(qū)動(dòng)橋的研發(fā)與設(shè)計(jì)融入：驅(qū)動(dòng)橋殼有限元分析，高性能制動(dòng)器技術(shù)、電子智能控制技術(shù)使驅(qū)動(dòng)橋的設(shè)計(jì)，不但可以縮短設(shè)計(jì)周期，還可以提高設(shè)計(jì)精度和可靠性，從而實(shí)現(xiàn)設(shè)計(jì)過(guò)程的最佳化和自動(dòng)化。國(guó)內(nèi)生產(chǎn)微型汽車驅(qū)動(dòng)橋的廠家較多，品種和規(guī)格也較全，其性能和質(zhì)量基本上能夠滿足國(guó)產(chǎn)車輛的使用要求，但是與國(guó)外先進(jìn)產(chǎn)品相比，國(guó)內(nèi)驅(qū)動(dòng)橋齒輪傳動(dòng)裝置技術(shù)水平仍相對(duì)較低。隨著國(guó)外先進(jìn)技術(shù)的引進(jìn)，科技迅速發(fā)展的推動(dòng)，高新技術(shù)在汽車領(lǐng)域的應(yīng)用和推廣，各種國(guó)外汽車新技術(shù)的引進(jìn)，研究團(tuán)隊(duì)自身研發(fā)能力的提高，我國(guó)的驅(qū)動(dòng)橋設(shè)計(jì)和制造會(huì)逐漸發(fā)展起來(lái)，逐步的縮短與外國(guó)制造技術(shù)水平上的差距，并最終跟上世界先進(jìn)的汽車零部件設(shè)計(jì)制造技術(shù)水平。汽車驅(qū)動(dòng)橋已經(jīng)經(jīng)過(guò)好多年的發(fā)展了，現(xiàn)有的產(chǎn)品比較笨重沒(méi)有什么技術(shù)含量，大多用在卡車大客車上，這種產(chǎn)品從誕生到現(xiàn)在基本沒(méi)有多大的更新。所以，如果還是生產(chǎn)老式產(chǎn)品的話，會(huì)陷入同質(zhì)化竟?fàn)庪y以取得好的效益，如果要在這外行業(yè)有所發(fā)展的話一定要有自己創(chuàng)新。開發(fā)出輕巧堅(jiān)固的橋，另外老式的車橋一能更好地與地面保持平行，所以在路面不平時(shí)輪胎的抓地能力很差，現(xiàn)在的轎車大都淘汰了這種橋，而采用性能更優(yōu)越的多連桿整車橋。近年來(lái)，驅(qū)動(dòng)橋墊片市場(chǎng)發(fā)展迅速。經(jīng)過(guò)近幾年的快速發(fā)展，世界驅(qū)動(dòng)橋墊片行業(yè)已經(jīng)形成一定的產(chǎn)業(yè)規(guī)模，相關(guān)驅(qū)動(dòng)橋墊片產(chǎn)業(yè)也日漸完善，但是國(guó)內(nèi)驅(qū)動(dòng)橋墊片市場(chǎng)還遠(yuǎn)未成熟，同發(fā)達(dá)的歐美國(guó)家相比，無(wú)論市場(chǎng)規(guī)模、產(chǎn)品檔次、品種規(guī)格、消費(fèi)水平等方面都還有相當(dāng)大的差距。隨著市場(chǎng)經(jīng)濟(jì)的發(fā)展，驅(qū)動(dòng)橋墊片技術(shù)水平、產(chǎn)品質(zhì)量的提高，應(yīng)用領(lǐng)域的不斷擴(kuò)展，我國(guó)的驅(qū)動(dòng)橋墊片將會(huì)有巨大的市場(chǎng)需求和發(fā)展空間。功能： 驅(qū)動(dòng)橋處于動(dòng)力傳動(dòng)系的末端，其基本功能是增大由傳動(dòng)軸或變速器傳來(lái)的轉(zhuǎn)矩，并將動(dòng)力合理的分配給左、右驅(qū)動(dòng)輪，另外還承受作用于路面和車架或車身之間的垂直立、縱向力和橫向力。驅(qū)動(dòng)橋一般由主減速器、差速器、車輪傳動(dòng)裝置和驅(qū)動(dòng)橋殼等組成。驅(qū)動(dòng)橋的分類 :驅(qū)動(dòng)橋分非斷開式與斷開式兩大類非斷開式驅(qū)動(dòng)橋也稱為整體式驅(qū)動(dòng)橋，其半軸套管與主減速器殼均與軸殼剛性地相連一個(gè)整體梁，因而兩側(cè)的半軸和驅(qū)動(dòng)輪相關(guān)地?cái)[動(dòng)，通過(guò)彈性元件與車架相連。它由驅(qū)動(dòng)橋殼1，主減速器，差速器,和半軸組成2、目的、依據(jù)和意義 對(duì)于汽車來(lái)說(shuō)而驅(qū)動(dòng)橋在傳動(dòng)系統(tǒng)中起著舉足輕重的作用。隨著目前國(guó)際上石油價(jià)格的上漲，汽車的經(jīng)濟(jì)性日益成為人們關(guān)心的話題,提高其燃油經(jīng)濟(jì)性也是各汽車生產(chǎn)商來(lái)提高其產(chǎn)品市場(chǎng)競(jìng)爭(zhēng)力的一個(gè)方法。為了降低油耗，不僅要在發(fā)動(dòng)機(jī)的環(huán)節(jié)上節(jié)油，而且也需要在傳動(dòng)的系統(tǒng)中來(lái)減少能量的損失。這就必須在發(fā)動(dòng)機(jī)的動(dòng)力輸出之后，在從發(fā)動(dòng)機(jī)傳動(dòng)軸驅(qū)動(dòng)橋這一動(dòng)力輸送環(huán)節(jié)中尋找減少能量在傳遞的過(guò)程中的損失。在這一環(huán)節(jié)中，發(fā)動(dòng)機(jī)是動(dòng)力的輸出者，而驅(qū)動(dòng)橋則是將動(dòng)力轉(zhuǎn)化為能量的最終執(zhí)行者。因此，在發(fā)動(dòng)機(jī)相同的情況下，采用性能優(yōu)良且與發(fā)動(dòng)機(jī)匹配性比較高的驅(qū)動(dòng)橋便成了有效節(jié)油的措施之一。所以驅(qū)動(dòng)橋的設(shè)計(jì)也是提高其燃油經(jīng)濟(jì)性一個(gè)重要的環(huán)節(jié)，汽車驅(qū)動(dòng)橋涉及的機(jī)械零部件的品種十分的廣泛，對(duì)這些零部件、元件及總成的制造也幾乎涉及到所有的現(xiàn)代機(jī)械制造工藝所以對(duì)驅(qū)動(dòng)橋的設(shè)計(jì)不應(yīng)僅停留在傳統(tǒng)的設(shè)計(jì)方法上，而應(yīng)借助于現(xiàn)代設(shè)計(jì)方法以精益求精?，F(xiàn)代的驅(qū)動(dòng)橋設(shè)計(jì)是傳統(tǒng)設(shè)計(jì)的深入、豐富和發(fā)展,而非獨(dú)立于傳統(tǒng)設(shè)計(jì)的全新設(shè)計(jì)。以理論為指導(dǎo)、以計(jì)算機(jī)為輔助,是現(xiàn)代設(shè)計(jì)的主要特征。利用這種方法指導(dǎo)設(shè)計(jì)可以減小經(jīng)驗(yàn)設(shè)計(jì)的盲目性和隨意性,提高設(shè)計(jì)的主動(dòng)性、科學(xué)性和準(zhǔn)確性。以便為廣大消費(fèi)者生產(chǎn)出質(zhì)量好,操作簡(jiǎn)便，價(jià)格便宜適合中國(guó)國(guó)情，包括道路條件和經(jīng)濟(jì)條件的車輛，滿足大多數(shù)消費(fèi)者的要求， 所以設(shè)計(jì)出結(jié)構(gòu)簡(jiǎn)單、工作可靠、造價(jià)低廉的驅(qū)動(dòng)橋?qū)⒋蟠笸苿?dòng)汽車產(chǎn)業(yè)的發(fā)展和社會(huì)經(jīng)濟(jì)的提高。驅(qū)動(dòng)橋設(shè)計(jì)是在整車設(shè)計(jì)中一個(gè)重要的環(huán)節(jié)，也是評(píng)價(jià)汽車整體性能的一個(gè)標(biāo)準(zhǔn)，所以通過(guò)對(duì)汽車驅(qū)動(dòng)橋的學(xué)習(xí)和設(shè)計(jì)，可以更好的掌握現(xiàn)代汽車驅(qū)動(dòng)橋設(shè)計(jì)與機(jī)械設(shè)計(jì)的方法。 1 2 3 4 5 6 7 8 9 101半軸2圓錐滾子軸承3支承螺栓4主減速器從動(dòng)錐齒輪5油封6主減速器主動(dòng)錐齒輪7彈簧座8墊圈9輪轂10調(diào)整螺母主要參數(shù)：序號(hào)項(xiàng) 目數(shù) 據(jù)單 位1車身長(zhǎng)度4350mm2車身寬度1800mm3車身高度1730mm4車 重1418kg5軸 距2630mm6前輪距1540mm7后輪距1540mm8前胎規(guī)格215/65 R16 9排 量2.0L10最大功率/轉(zhuǎn)速105/6000kw/ rpm11最大轉(zhuǎn)矩/轉(zhuǎn)速184/4500N.m/ rpm12最高車速171km/h13最高檔傳動(dòng)比0.78214級(jí) 別SUV15離地間隙200-250mm驅(qū)動(dòng)橋是汽車總成中的重要承載件之一，其性能直接影響整車的性能和有效使用壽命。驅(qū)動(dòng)橋一般由橋殼、主減速器、差速器和半殼等元件組成，轉(zhuǎn)向驅(qū)動(dòng)橋還包括各種等速聯(lián)軸節(jié)，結(jié)構(gòu)更復(fù)雜，承載著汽車的滿載簧荷重及地面經(jīng)車輪、車架及承載式車身經(jīng)懸架給予的鉛垂力、縱向力、橫向力及其力矩，以及沖擊載荷；驅(qū)動(dòng)橋還傳遞著傳動(dòng)系中的最大轉(zhuǎn)矩，橋殼還承受著反作用力矩。汽車驅(qū)動(dòng)橋結(jié)構(gòu)型式和設(shè)計(jì)參數(shù)除對(duì)汽車的可靠性與耐久性有重要影響外，也對(duì)汽車的行駛性能如動(dòng)力性、經(jīng)濟(jì)性、平順性、通過(guò)性、機(jī)動(dòng)性和操動(dòng)穩(wěn)定性等有直接影響。汽車驅(qū)動(dòng)橋設(shè)計(jì)涉及的機(jī)械零部件及元件的品種極為廣泛，對(duì)這些零部件、元件及總成的制造也幾乎要設(shè)計(jì)到所有的現(xiàn)代機(jī)械制造工藝。因此，通過(guò)對(duì)汽車驅(qū)動(dòng)橋的學(xué)習(xí)和設(shè)計(jì)，可以更好的學(xué)習(xí)并掌握現(xiàn)代汽車設(shè)計(jì)與機(jī)械設(shè)計(jì)的全面知識(shí)和技能。二、設(shè)計(jì)（論文）的基本內(nèi)容、擬解決的主要問(wèn)題1.設(shè)計(jì)的主要內(nèi)容（1）掌握汽車后橋結(jié)構(gòu)特點(diǎn)及工作原理。（2）確定主要零部件（差速器、主減速器等）主要設(shè)計(jì)參數(shù)，并對(duì)關(guān)鍵部位進(jìn)行校核。（3）確定零部件結(jié)構(gòu)尺寸。（4）使用AutoCAD完成裝配圖及主要零件圖。（5）編寫設(shè)計(jì)說(shuō)明書。2.解決的主要問(wèn)題（1）主減速器類型的選擇（2）差速器結(jié)構(gòu)的選擇因主減速比小于7.6 選擇單級(jí)主減速器繪制驅(qū)動(dòng)橋圖紙結(jié)構(gòu)及受力分析與強(qiáng)度計(jì)算結(jié)構(gòu)選擇及強(qiáng)度計(jì)算差速器齒輪的基本參數(shù)選擇差速器的結(jié)構(gòu)型式選擇差速器齒輪幾何參數(shù)與強(qiáng)度計(jì)算選擇螺旋錐齒輪完成畢業(yè)設(shè)計(jì)完成設(shè)計(jì)說(shuō)明書驅(qū)動(dòng)橋殼的設(shè)計(jì)半軸的設(shè)計(jì)主減速器圖的繪制主減速器基本參數(shù)的計(jì)算三、技術(shù)路線（研究方法）主減速器的減速形式主減速器齒輪的類型初步確定設(shè)計(jì)方案分析各種驅(qū)動(dòng)橋優(yōu)缺 第1-2周（3月2日3月13日）（2）后橋方案的確定 第3-4周（3月16日3月27日）（3）參數(shù)選擇與設(shè)計(jì)計(jì)算 第5-6周（3月30日4月10日）（4）完成設(shè)計(jì)說(shuō)明書，完成圖紙繪制 第713周（4月13日5月29日）（5）交稿 第14周（6月1日6月5日）（6）設(shè)計(jì)審核、修改 第15、16周（6月8日6月19日）（7）畢業(yè)設(shè)計(jì)答辯準(zhǔn)備及答辯 第17周（6月22日6月26日）四、進(jìn)度安排（1）調(diào)研、資料收集，完成開題報(bào)告 第1-2周（3月2日3月13日）（2）后橋方案的確定 第3-4周（3月16日3月27日）（3）參數(shù)選擇與設(shè)計(jì)計(jì)算 第5-6周（3月30日4月10日）（4）完成設(shè)計(jì)說(shuō)明書，完成圖紙繪制 第713周（4月13日5月29日）（5）交稿 第14周（6月1日6月5日）（6）設(shè)計(jì)審核、修改 第15、16周（6月8日6月19日）（7）畢業(yè)設(shè)計(jì)答辯準(zhǔn)備及答辯 第17周（6月22日6月26日）五、參考文獻(xiàn)1 劉惟信M.汽車設(shè)計(jì).北京:清華大學(xué)出版社,2001.2 王望予M.汽車設(shè)計(jì).第3版.北京:機(jī)械工業(yè)出版社,2000.3 余志生M.汽車?yán)碚?第3 版.北京:機(jī)械工業(yè)出版社,2000.4 張洪欣M.汽車底盤設(shè)計(jì).北京:機(jī)械工業(yè)出版社,1998.5 臧杰.閻巖M.汽車構(gòu)造.北京.機(jī)械工業(yè)出版社,20056汽車工程手冊(cè)編輯委員會(huì).汽車工程手冊(cè).制造篇.北京:人民交通出版社,2001.7 陳效華.基于有限元方法的微型汽車驅(qū)動(dòng)橋結(jié)構(gòu)分析J.中國(guó)制造業(yè),2003,32(4).8 陳效華.驅(qū)動(dòng)橋集成建模系統(tǒng)概要設(shè)計(jì)J.汽車工程,2003,25(1).9 李光熠.機(jī)械可靠度計(jì)算的幾種方法比較J.煤礦機(jī)械,2001(5).10 王鐵.基于貝葉斯統(tǒng)計(jì)的驅(qū)動(dòng)橋殼可靠性設(shè)計(jì)J.機(jī)械設(shè)計(jì)與制造,2003(2).11 王鐵.輪式工程機(jī)械驅(qū)動(dòng)橋主減速器齒輪的可靠性優(yōu)化設(shè)計(jì)J.機(jī)械設(shè)計(jì)與制造,2003(4).12 褚志剛.汽車驅(qū)動(dòng)橋殼破壞機(jī)理分析研究J.設(shè)計(jì)與計(jì)算,2001(6).13 畢春長(zhǎng).齒輪傳動(dòng)機(jī)構(gòu)人工神經(jīng)網(wǎng)絡(luò)輔助優(yōu)化設(shè)計(jì)J.機(jī)械設(shè)計(jì),2000(2).14 丁予展.實(shí)數(shù)編碼的遺傳算法在斜齒圓柱齒輪傳動(dòng)優(yōu)化設(shè)計(jì)中的應(yīng)用J.機(jī)械科學(xué)與技術(shù),2000,19(6).15 Sarah Domme, PeterHwang, PhilipKim, eta.l A Value Based Approach to Determining TopHazards in Army Ground Vehicle Operations C. Systems and Information EngineeringDesign Symposium IEEE. 2006: 124-129.16 ARCCA, incorporated. OccupantCrash ProtectionHand-book for Tactical Ground Vehicles(Light, Medium and HeavyDuty) M. Washington, DC: DepartmentofAr-my, 2000.17 Walz M C, Trends in the Static Stability Factor of Pas-senger Cars, Light Trucks, andVans R. Washington, DC: National Highway Traffic Safety Administration,2005.六、備注指導(dǎo)教師意見(jiàn)：簽字： 年 月 日