【正文】 本科學(xué)生畢業(yè)設(shè)計(jì) HGCU2 變速器 輸入軸 結(jié)構(gòu) 及加工工藝 設(shè)計(jì) 院系 名稱 ： 汽車與交通工程學(xué)院 專業(yè)班級 ： 車輛工程 學(xué)生姓名 ： 指導(dǎo)教師 ： 職 稱 ： 副教授 The Graduation Design for Bachelor39。s Degree HGCU2 Transmission input Shaft Structure and Processing Technology Design Candidate： Specialty： Vehicle Engingeering Class： B073 Supervisor： Associate Prof. Heilongjiang Institute of Technology I 摘 要 變速器是完成傳動(dòng)系任務(wù)的重要部件，也是決定整車性能的主要部件之一。變速器的設(shè)計(jì)水平對汽車的動(dòng)力性、燃料經(jīng)濟(jì)性、換擋操縱的可靠性與輕便性、傳動(dòng)平穩(wěn)性與效率等都有直接的影響。 隨著汽車工業(yè)的發(fā)展，轎車變速器的設(shè)計(jì)趨勢是增大其傳遞功率與重量之比，并要求其具有更小的尺寸和良好的性能。本設(shè)計(jì)以車型 HGCU2變速器為基礎(chǔ) 設(shè)計(jì) 輸入軸 ， 在給定發(fā)動(dòng)機(jī)輸出轉(zhuǎn)矩、轉(zhuǎn)速及最高車速、最大爬坡度等條件下，著重對變速器 輸入軸 的結(jié)構(gòu)參數(shù)進(jìn)行設(shè)計(jì)計(jì)算 以及對其進(jìn)行工藝分析等。 我國的制造工藝與技術(shù)裝備相對落后于工業(yè)發(fā)達(dá)的國家，我國大多數(shù)企業(yè)目前還采用較落后的制造工藝及技術(shù)裝備生產(chǎn)，優(yōu)質(zhì)高效率低耗工藝的普及率不足 10%數(shù)控機(jī)床及高效設(shè)備不足 5%。在產(chǎn)品開發(fā)設(shè)計(jì)的技術(shù)手段方面，我國 CAD 的覆蓋率僅為 5%。不能及時(shí)開 發(fā)設(shè)計(jì)具有創(chuàng)新和獨(dú)占性的市場的新產(chǎn)品。總之，我國的制造技術(shù)與水平還存在階段性的差距，而我國的機(jī)械制造裝備產(chǎn)業(yè)也是大致如此。 當(dāng)前，制造技術(shù)的發(fā)展趨勢是：必須強(qiáng)化具有自己創(chuàng)新技術(shù)的產(chǎn)品開發(fā)能力，縮短產(chǎn)品的上市時(shí)間，提高產(chǎn)品質(zhì)量和生產(chǎn)效率，從而提高企業(yè)的市場應(yīng)變能力和綜合競爭能力。重視先進(jìn)的基本制造工藝與特種工藝的研究，重視使能技術(shù)的研究和先進(jìn)機(jī)床、刀具的研究，研究高性能的自動(dòng)化加工機(jī)床，開發(fā)基于新工藝的裝備等，乃是當(dāng)誤之急。 全套圖紙，加 153893706 II 關(guān)鍵詞 ： 變速器 輸入軸 ； 結(jié)構(gòu) ； 工藝； 夾具 ； 設(shè)計(jì) 。 III ABSTRACT Transmission is an important task to plete driveline ponents, Decision is one of the main ponents of vehicle performance. Transmission of the design level of the car power, fuel economy, shifting control of the reliability and portability, stability and efficiency of transmission has a direct impact. With the auto industry, car design trend is to increase the transmission power and the weight of its transmission ratio, and request a smaller size and good performance. The design with the modelbased design HGCU2 transmission input shaft, at a given engine output torque, speed and maximum speed, maximum degree climbing conditions, focusing on the transmission input shaft of the structural parameters of the process design calculations and analysis of its And so on. Manufacturing process in China is relatively backward equipment and technologies in the industrial developed countries, the majority of our business is still a more backward technology and equipment manufacturing technology and production process of highquality highefficiency low peration rate of less than 10% of CNC machine tools and lack of efficient equipment 5%. In product development and design of technical tools, CAD coverage of only 5%.Not timely development of innovative and exclusive design of the market of new products. In short, the level of manufacturing technology and there are still gaps in stages while machinery and equipment industry in China is much the same. Currently, the manufacturing technology trend is: to strengthen the innovative technology with its own product development capabilities, shorten time to market, improve product quality and production efficiency, thereby enhancing response capabilities and overall market petitiveness. The basic importance of advanced manufacturing technology and special technology research, attention to energy technology research and advanced machine tools, the research tool to study the performance of automated machine tools, the development of new technologybased equipment, etc, but when the errors of the emergency. Key words： Transmission input shaft； Structure； Process； Fixture； Design. 目 錄 摘要 ......................................................................................................................................... I Abstract ...............................................................................................................................III 第 1章 緒 論 ....................................................................................................................1 汽車變速器的概述 .................................................................................................... 1 汽車變速器研究狀況、發(fā)展趨勢及成果 ................................................................ 1 汽車變速器 輸入軸 設(shè)計(jì)的目的和意義 .................................................................... 4 研究內(nèi)容 .................................................................................................................... 5 第 2章 載貨汽車主要參數(shù)的確定 ..............................................................................7 軸的結(jié)構(gòu)設(shè) 計(jì) ........................................................................................................... 7 最小軸徑的確定 ............................................................................................. 7 各段軸的確定 ................................................................................................. 7 軸的校核 .................................................................................................................... 8 軸的剛度校核 ................................................................................................. 8 軸的強(qiáng)度校核 ............................................................................................... 15 本章小結(jié) ................................................................................................................. 18 第 3章 變速器 輸入軸 的工藝方案的確定 .............................................................. 19 零件的作用 .............................................................................................................. 19 零件的工藝分析 ...................................................................................................... 19 確定毛坯的制造形式 .............................................................................................. 19 定位基準(zhǔn)的選擇 ...................................................................................................... 19 制訂工藝路線 .......................................................................................................... 20 本章小結(jié) .........................................