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車輛工程畢業設計152五菱宏光手動變速器設計

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車輛工程畢業設計152五菱宏光手動變速器設計五菱宏光手動變速器設計
系部名稱: 汽車工程系
專業班級: 車輛工程
學生姓名:
指導教師:
職稱:
The Graduation Design for Bachelor's Degree
WuLing HongGuang
Manual Transmission Design
Candidate:WangEnTong
Specialty:Vehicle engineering
Class:BW07-6
Supervisor:ZhaoGuoQian advanced experimental teachers
Heilongjiang Institute of Technology
摘要
變速器用來改變發動機傳到驅動輪上的轉矩和轉速，目的是在原地起步，爬坡，轉彎，加速等各種行駛工況下，使汽車獲得不同的牽引力和速度，同時使發動機在最有利工況范圍內工作。變速器設有空擋和倒擋。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。變速箱整體結構剛性與軸和殼體的結構有關系。一般通過控制軸的長度即控制檔數，來保證變速箱有足夠的剛性。
本文設計研究了三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計并講述了變速器中各部件材料的選擇。
關鍵字:變速器;設計;齒輪;軸;校核
ABSTRACT
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 three-axis five block manual tran 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 : Transmission; Design; Gear; Axis;Checking
目錄
摘要 ..............................................................................................................錯誤～未定義書簽。 ABSTRACT...............................................................................................錯誤～未定義書簽。第1章緒論 .............................................................................................錯誤～未定義書簽。
1.1選題的背景................................................................................錯誤～未定義書簽。
1.2目的及意義.................................................................................................................. 2 第2章總體方案設計 .......................................................................................................... 3
2.1汽車參數的選擇 ............................................................................................................... 3
2.2變速器設計應滿足的基本要求 ....................................................................................... 3
2.3傳動機構布置方案分析 ................................................................................................... 3
2.3.1固定軸式變速器 .................................................................................................... 3
2.3.2倒檔布置方案 ........................................................................................................ 4
2.3.3其它問題 ................................................................................................................ 6
2.4齒輪形式 ........................................................................................................................... 7
2.5換擋機構形式 ................................................................................................................... 7
2.6變速器軸承 ....................................................................................................................... 8
2.7本章小結 ........................................................................................................................... 9 第3章變速器設計和計算 ................................................................................................. 10
3.1檔數 ................................................................................................................................. 11
3.2傳動比范圍 .....................................................................................錯誤～未定義書簽。
3.3各檔傳動比的確定 .........................................................................錯誤～未定義書簽。
3.3.1主減速器傳動比的確定 ........................................................錯誤～未定義書簽。
3.3.2最低檔傳動比的確定 ............................................................錯誤～未定義書簽。
3.3.3各檔傳動比的確定.................................................................錯誤～未定義書簽。
3.3.4中心距的選定 ........................................................................錯誤～未定義書簽。
3.3.5變速器的外形尺寸 ................................................................錯誤～未定義書簽。
3.4齒輪參數 .........................................................................................錯誤～未定義書簽。
3.4.1模數的選取 ............................................................................................................ 14
3.4.2壓力角 .................................................................................................................... 15
3.4.3螺旋角 .................................................................................................................... 15
3.4.4齒寬......................................................................................................................... 16
3.4.5齒頂高系數 ............................................................................................................ 17
3.4.6變位系數的選擇原則 ............................................................................................ 17
3.5各檔齒數的分配 ............................................................................................................. 18
3.5.1確定一檔齒輪的齒數 ............................................................................................ 18
3.5.2對中心距進行修正 ................................................................................................ 20
3.5.3確定常嚙合傳動齒輪副齒數及變位系數 ............................................................ 20
3.5.4確定其他各檔齒數及變位系數 ............................................................................ 21
6 3.5.5確定倒檔齒輪齒數及變位系數 ............................................................................ 23.6本章小結 ......................................................................................................................... 28 ...

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