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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 I 摘 要 變速器是汽車傳動系統(tǒng)中比較關(guān)鍵的部件 它的設(shè)計好壞將直接影響到汽車的實 際使用性能 變速器用來改變發(fā)動機傳到驅(qū)動輪上的轉(zhuǎn)矩和轉(zhuǎn)速 目的是在原地起步 爬坡 轉(zhuǎn)彎 加速等各種行駛工況下 使汽車獲得不同的牽引力和速度 同時使發(fā)動 機在最有利工況范圍內(nèi)工作 變速器設(shè)有空擋和倒擋 需要時變速器還有動力輸出功 能 因為變速箱在低檔工作時作用有較大的力 所以一般變速箱的低檔都布置靠近軸 的后支承處 然后按照從低檔到高檔順序布置各檔位齒輪 這樣做既能使軸有足夠大 的剛性 又能保證裝配容易 變速箱整體結(jié)構(gòu)剛性與軸和殼體的結(jié)構(gòu)有關(guān)系 一般通 過控制軸的長度即控制檔數(shù) 來保證變速箱有足夠的剛性 本文設(shè)計研究了兩軸式五擋手動變速器 對變速器的工作原理做了闡述 變速器 的各擋齒輪和軸做了詳細的設(shè)計計算 并進行了強度校核 對一些標準件進行了選型 變速器的傳動方案設(shè)計并講 述 了 變 速 器 中 各 部 件 材 料 的 選 擇 關(guān)鍵字 擋數(shù) 傳動比 齒輪 軸 強度校核 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計 II ABSTRACT Transmission is more cruical in automotive driveline components it is dseigned to ditectly affect the quality of the actual use of performance automobiles Transmission to change the engine reached on the driving wheel torque and speed is aimed at marking start climbing turning accelerate various driving conditions the car was different traction and speed Meanwhile engine in the most favorable working conditions within the scope of the work And the trans mission in neutral gear with reverse gear Transmission also need power output function Gearbox because of the low grade work at a larger role In general the low grade gearbox layout are close to the axis after support Following from low grade to high grade order of the layout of stalls gear This will not only allow axis are large enough for a rigid but also ensures easy assembly Gear box overall structure and rigid axle and the shell structure of relations Generally through the control shaft length control over several stalls to ensure that adequate gear box rigid This paper describes the design of two axis five block manual trans mission the transmission principle of work elaborated Transmission of the gear shaft and do a detailed design and the intensity of a school For some standard parts for the selection Transmission Trans mission program design A brief description of the trans mission of all components of the material choice Keywords Block Transmission ratio Gear Axis Checking