【正文】 料軟硬不均。汽車和工程機(jī)械用傳動(dòng)軸在高速轉(zhuǎn)動(dòng)時(shí)要產(chǎn)生彎曲振動(dòng)。因此對(duì)傳動(dòng)系重要組成部分萬向節(jié)振動(dòng)特性必須進(jìn)行分析 [2]。傳動(dòng)軸選用與設(shè)計(jì)的合理與否直接影響傳動(dòng)系的傳動(dòng)性能。 附錄 A 英文文獻(xiàn) ................................................................... 錯(cuò)誤 !未定義書簽。本畢業(yè)設(shè)計(jì)將依據(jù)現(xiàn)有生產(chǎn)企業(yè)在生產(chǎn)車型 (CA1041)的萬向傳動(dòng)裝置作為設(shè)計(jì)原型。 I ` 摘 要 汽車的萬向傳動(dòng)軸是由傳動(dòng)軸、萬向節(jié)兩個(gè)主要部件聯(lián)接而成，在長軸距的車輛中還要加裝中間支承。隨著汽車工業(yè)的發(fā)展，現(xiàn)代汽車對(duì)萬向節(jié)與傳動(dòng)軸的效率、強(qiáng)度、耐久性和噪聲等性能方面的設(shè)計(jì)及計(jì)算校核要求也越來越嚴(yán)格。 關(guān)鍵字 ：傳動(dòng)軸；萬向節(jié)；中間支承；設(shè)計(jì)；校核 II ABSTRACT The universal drive shaft of automotive is posed of transmission shaft and cardin joint. The main function of the universal drive shaft is to transmitting torque and rotation movement between two shafts whose relative position is variation in the working process. At the beginning of this century the transmission shaft and cardin joint play an important role in the development of automobile industry. As the development of automobile industry, the automobile demand that the design and verification of transmission shaft and cardin join stricter in the efficiency, intension, durability and noise performance. This graduation design chooses existing production business enterprise of basis is producing the car type(CA1041) of ten thousand to spread to move to equip the conduct and actions design prototype. Under the conditions of the main technical parameters of the given vehicle, installation location of engine, transmission and other major assembly are determined , the structure of the vehicle is analysised, the transmission shaft layout program is determined. Two shaftthree cardin joints is adapted. After determining the transmission options, the right drive shaft and universal joint assembly, intermediate bearing assembly is designed, so that the assembly can be used in normal situations and the life within no failure. Keywords： Transmission shaft； Cardin joint； Middle supporting； Design ；Verification III 目 錄 `摘 要 .................................................................................................................... I ABSTRACT ...............................................................................................................II 第一章 緒 論 ..................................................................................................... 1 選題的目的和意義 ........................................................................................... 1 國內(nèi)外研究現(xiàn)狀、發(fā)展趨勢 ........................................................................... 1 第 2 章 方案選擇 ..................................................................................................... 3 解放 CA1041 輕型貨車原始數(shù)據(jù) ................................................................... 3 萬向傳動(dòng)軸的結(jié)構(gòu)特點(diǎn)和基本要求 ............................................................... 3 萬向節(jié)總成主要參數(shù)及其選擇 ....................................................................... 5 中間支承的選擇 ............................................................................................... 6 本章小結(jié) .......................................................................................................... 6 第三章 傳動(dòng)軸總成的設(shè)計(jì) .................................................................................. 7 萬向傳動(dòng)軸結(jié)構(gòu)方案分析 ............................................................................... 7 基本組成的選擇 .................................................................................... 7 萬向傳動(dòng)軸的計(jì)算載荷 .................................................................................. 9 傳動(dòng)軸鋼管尺寸的選擇 ................................................................................. 12 傳動(dòng)軸的計(jì)算與強(qiáng)度校核 ............................................................................. 13 傳動(dòng)軸的臨界速度校核 ....................................................................... 13 傳動(dòng)軸扭轉(zhuǎn)強(qiáng)度計(jì)算與校核 ............................................................... 14 傳動(dòng)軸花鍵設(shè)計(jì) ............................................................................................. 15 主傳動(dòng)軸花鍵設(shè)計(jì) ............................................................................... 15 中間傳動(dòng)軸花鍵的設(shè)計(jì) ....................................................................... 19 本章小結(jié) ......................................................................................................... 20 第四章 萬向節(jié)總成的設(shè)計(jì) ................................................................................ 21 萬向節(jié)類型的選擇 ......................................................................................... 21 十字軸式萬向節(jié)的結(jié)構(gòu)分析 ......................................................................... 22 IV 萬向節(jié)的受力分析 ......................................................................................... 23 單十字軸萬向節(jié)的受力分析 ............................................................... 23 雙十字軸萬向節(jié)傳動(dòng) ........................................................................... 25 多十字軸萬向節(jié)傳動(dòng) ........................................................................... 26 萬向節(jié)總成主要參數(shù)的確定與校核 ............................................................. 27 十字軸 ................................................................................................... 27 滾針軸承 ............................................................................................... 29 聯(lián)連接元件的設(shè)計(jì) ......................................................................................... 32 聯(lián)接螺栓 ............................................................................................... 32 萬向節(jié)叉 ............................................................................................... 34 本章小結(jié) ......................................................................................................... 35 第五章 中間支承的設(shè)計(jì) ..................................................................................... 36 中間支承的結(jié)構(gòu)分析與選擇 ......................................................................... 36 軸承的選取 ......