550 變速箱開(kāi)式試驗(yàn)臺(tái)設(shè)計(jì)（有cad圖）,550,變速箱開(kāi)式試驗(yàn)臺(tái)設(shè)計(jì)（有cad圖）,變速箱,試驗(yàn)臺(tái),設(shè)計(jì),cad 變速箱開(kāi)式試驗(yàn)臺(tái)設(shè)計(jì) 摘 要 變速器是現(xiàn)代汽車的一個(gè)主要裝備,其性能直接影響到汽車的動(dòng)力性、燃油經(jīng)濟(jì)性及駕駛性能等. 研究自動(dòng)變速器與發(fā)動(dòng)機(jī)的聯(lián)合工作特性,需要對(duì)自動(dòng)變速器的性能進(jìn)行臺(tái)架試。 本文從整體上論述了汽車變速箱性能檢測(cè)系統(tǒng)的測(cè)試原理和設(shè)計(jì)方案， 并從硬件和軟件兩方面詳細(xì)闡述了汽車變速箱性能檢測(cè)系統(tǒng)的組成。介紹了汽車變速器系統(tǒng)綜合試驗(yàn)臺(tái)的主要構(gòu)成與種類, 著重在機(jī)械硬件方面去分析研究開(kāi)放式及封閉式汽車變速器系統(tǒng)綜合試驗(yàn)臺(tái)的主要結(jié)構(gòu)、特點(diǎn)及工作原理。 本論文研究的目的、意義：我國(guó)汽車工業(yè)正處于發(fā)展和提升時(shí)期，變速器在汽車上開(kāi)始大量裝備，這對(duì)其設(shè)計(jì)制造、性能檢測(cè)與維修提出了迫切要求。目前國(guó)產(chǎn)變速器測(cè)試設(shè)備多為手動(dòng)、測(cè)試精度低、響應(yīng)速度慢；進(jìn)口設(shè)備，價(jià)格較高，集中在少數(shù)企業(yè)和地區(qū)，這種狀況無(wú)法滿足汽車制造及維修行業(yè)的需求。為開(kāi)發(fā)具有自主知識(shí)產(chǎn)權(quán)的、適合我國(guó)國(guó)情的變速器檢測(cè)備，提出本研究課題。 關(guān)鍵詞：變速器, 試驗(yàn)臺(tái), 結(jié)構(gòu), 分析 DESIGN OF THE OPENING TRANSMISSION TEST-BED ABSTRACT The transmission is a main device of modern cars. Its performance directly affects tractate performance, fuel economy and convenient operation of vehicles, etc. Its characteristics must be tested with the test - bed to study the characteristics of the cooperating performance of the engine and the transmission. This paper discuss the test theory and design project of a test System for the performance of Transmission test-bed，and describe the makeup of the system from hardware and software. This paper introduces the main components and types of the comprehensive testing beds for vehicle transmission system with focus on mechanical hardware, the author analyses their main structures, features, and working principle of the open and closed comprehensive testing beds for vehicle transmission system. Motive　and　meaning　of　the　research: In　our　country　automobile　industry　positive　be　placed　in　shape　time，Transmission　beginning　equipped　on　a　lot　of　motors，　this　situation Inevitably press for its design, test, repair. Present domestic Transmission Test-bed mostly turning by hand, test accuracy is low , respond speed is slow;　the import equipment price is higher ,concentrate in the minority. This condition can not satisfy the demand of automobile production and maintenance enterprise. In order to develop the Transmission Test-bed which have independence intelligent property right, we propose this research lesson. KEY WORD：transmission, testing bed, structure, analysis 符 號(hào) 說(shuō) 明 發(fā)動(dòng)機(jī)額定功率 轉(zhuǎn)速 r/min 傳動(dòng)效率 計(jì)算系數(shù) 、 分度圓直徑 mm a 中心矩 mm 、 齒寬 mm 齒輪螺旋角 ° 齒輪模數(shù) mm 試驗(yàn)齒輪齒根的彎曲疲勞極限 試驗(yàn)齒輪的應(yīng)力修正系數(shù) 彎曲疲勞強(qiáng)度計(jì)算的壽命系數(shù) 彎曲強(qiáng)度的最小安全系數(shù) 試驗(yàn)齒輪的接觸疲勞極限 接觸強(qiáng)度的最小安全系數(shù) 接觸疲勞強(qiáng)度計(jì)算的壽命系數(shù) 工作硬化系數(shù) 齒面許用接觸應(yīng)力 許用彎曲應(yīng)力 目 錄 第一章 前言............................................1 §1.1 研究的目的......................................1 §1.2 研究的依據(jù)......................................2 §1.3 試驗(yàn)臺(tái)的種類....................................2 §1.3.1 開(kāi)式試驗(yàn)臺(tái)..................................2 §1.3.2 閉式試驗(yàn)臺(tái)..................................2 第二章 試驗(yàn)臺(tái)總體方案的確定............................3 §2.1 試驗(yàn)臺(tái)的基本功能................................3 §2.2 試驗(yàn)臺(tái)的測(cè)試原理................................3 §2.3 試驗(yàn)臺(tái)的基本組成................................4 第三章 試驗(yàn)臺(tái)的基本結(jié)構(gòu)設(shè)計(jì)............................8 §3.1 聯(lián)軸器的選擇....................................8 §3.1.1 變速器輸入軸后的聯(lián)軸器......................8 §3.1.2 升速器后的聯(lián)軸器............................9 §3.1.2 發(fā)動(dòng)機(jī)后的聯(lián)軸器............................9 §3.2 升速器的設(shè)計(jì) ..................................10 §3.2.1 斜齒圓柱齒輪傳動(dòng)設(shè)計(jì).......................10 §3.2.2 低速軸的設(shè)計(jì).... ..........................11 §3.2.2 高速軸的設(shè)計(jì)...............................14 §3.2.4 鍵的強(qiáng)度校核...............................16 §3.2.5 升速器附件設(shè)計(jì).............................19 §3.3 升速齒輪箱的簡(jiǎn)單設(shè)計(jì)...........................19 §3.4 扭矩轉(zhuǎn)速傳感器的選擇...........................22 §3.5 傳動(dòng)結(jié)構(gòu)的設(shè)計(jì).................................22 第四章 試驗(yàn)臺(tái)性能匹配.................................23 §4.1 測(cè)功機(jī)用途及使用范圍...........................23 §4.2 測(cè)功機(jī)結(jié)構(gòu)及原理...............................24 §4.3 測(cè)功機(jī)工作特性.................................24 §4.4 試驗(yàn)臺(tái)的匹配原則...............................26第五章 結(jié)論............................................28 參考文獻(xiàn).........................................29 致謝...................................................30 V