Wagons型轎車(chē)二軸式四檔變速器設(shè)計(jì)

論文編號(hào):JX1538  論文字?jǐn)?shù):12811.頁(yè)數(shù):53  附任務(wù)書(shū)，開(kāi)題報(bào)告，外文翻譯，CAD圖，答辯PPT

Wagons型轎車(chē)二軸式四檔變速器設(shè)計(jì)

 【摘要】隨著汽車(chē)工業(yè)的發(fā)展，轎車(chē)變速器的設(shè)計(jì)趨勢(shì)為增大變速器傳遞功率與重量之比，并要求變速器具有較小的尺寸和良好的性能。在給定發(fā)動(dòng)機(jī)輸出轉(zhuǎn)矩、轉(zhuǎn)速及最高車(chē)速、最大爬坡度等條件下，著重對(duì)變速器齒輪的結(jié)構(gòu)參數(shù)、軸的結(jié)構(gòu)尺寸等進(jìn)行設(shè)計(jì)計(jì)算。該型結(jié)構(gòu)緊湊工藝性能好，適配性強(qiáng)，傳動(dòng)平穩(wěn)噪聲低，節(jié)油且成本低。在水平的公路上,汽車(chē)沒(méi)有變速器只可能夠通過(guò)加速發(fā)動(dòng)機(jī)和踩離合器來(lái)控制移動(dòng)速度。然而,如果在這種情況下它會(huì)比較緩慢,有噪音,讓人感到不舒服。此外,它將會(huì)對(duì)發(fā)動(dòng)機(jī)與汽車(chē)的驅(qū)動(dòng)部分產(chǎn)生一個(gè)巨大的壓力。
 為了平緩啟動(dòng)和順利通過(guò)爬坡,必須給車(chē)輛配置較大的傳動(dòng)比，來(lái)獲得數(shù)倍于發(fā)動(dòng)機(jī)傳出的扭矩。另外也需要一個(gè)很大的傳動(dòng)比來(lái)滿(mǎn)足在高速公路上額外的高引擎轉(zhuǎn)速。變速器就是為了來(lái)履行這些功能的。
 
 【關(guān)鍵詞】變速器；齒輪；同步器；設(shè)計(jì)

Wagons car four gear biaxial type transmission design

  [Abstract] Along with the development of the automobile industry,the trend of car transmission designing is to increase its transmission power and decrese its weight,and hope have smaller size and maximum speed of vehicles,maximum degree,focuson the design of transmission gear structure parameters,axis geometry design computation;as well as the transmission and drive program structure design,Structure by the process performance together,and fit and strong,smooth transmission and low noise,fuel-efficient and low cost．Given a level road, an automobile without a transmission could be made to move by accelerating the engine and engaging the clutch. However, a start under these conditions would be slow, noisy and uncomfortable. In addition, it would place a tremendous strain on the engine and driving parts of the automobile.
 So in order to get smooth starts and have power to pass and climb hills, a power ratio must be provided to multiply the torque and turning effort of the engine. Also required is a speed ratio to avoid the need for extremely high engine rpm at high road speeds. The transmission is geared to perform these functions.
 
 [Key wors] transmission; gear; synchrotron; design

目  錄
畢業(yè)設(shè)計(jì)（論文）任務(wù)書(shū) Ⅰ
開(kāi)題報(bào)告 Ⅱ
指導(dǎo)教師審查意見(jiàn) Ⅲ
評(píng)閱老師評(píng)語(yǔ) Ⅳ
答辯會(huì)議記錄 Ⅴ
中文摘要 Ⅵ
外文摘要 Ⅶ
前言 1
1 變速器的構(gòu)造 2
1.1 傳動(dòng)示意圖 2
1.2 主要結(jié)構(gòu)說(shuō)明 3
2 設(shè)計(jì)參數(shù) 4
2.1 傳遞功率或扭矩 4
2.2 初選傳動(dòng)比 4
3 變速器的主要參數(shù) 5
3.1 中心距A的初算與確定 5
3.2 變速器的總體軸向尺寸的初算與確定 5
3.3 齒輪參數(shù)（壓力角，齒數(shù)，模數(shù)）的初算與確定 5
4 各檔齒輪的幾何尺寸計(jì)算 10
4.1一檔齒輪的幾何尺寸計(jì)算 10
4.2二檔齒輪的幾何尺寸計(jì)算 11
4.3 三檔齒輪的幾何尺寸計(jì)算 13
4.4 四檔齒輪的幾何尺寸計(jì)算 15
4.5 輸入軸和倒檔軸齒輪幾何尺寸計(jì)算 17
4.6 輸出軸和倒檔軸齒輪幾何尺寸計(jì)算 18
5 各檔齒輪的強(qiáng)度計(jì)算 20
5.1 第一檔齒輪強(qiáng)度計(jì)算（斜齒） 20
5.2 第二檔齒輪強(qiáng)度計(jì)算（斜齒） 23
5.3 第三檔齒輪強(qiáng)度計(jì)算（斜齒） 25
5.4 第四檔齒輪強(qiáng)度計(jì)算（斜齒） 28
6 軸的強(qiáng)度計(jì)算 31
6.1 輸入軸的強(qiáng)度計(jì)算 31
6.2 輸出軸的強(qiáng)度計(jì)算 34
7 滾動(dòng)軸承的壽命計(jì)算 38
7.1 輸入軸軸承壽命計(jì)算 38
7.2 輸出軸軸承壽命計(jì)算 39
8 潤(rùn)滑 41
8.1 變速器內(nèi)潤(rùn)滑油量 41
8.2 潤(rùn)滑油 41
9 變速器同步器的設(shè)計(jì)及操縱機(jī)構(gòu) 42
9.1 同步器的結(jié)構(gòu) 42
9.2 同步環(huán)主要參數(shù)的確定 43
9.3 變速器的操縱機(jī)構(gòu) 45
10 結(jié)論 47
參考文獻(xiàn) 48
致  謝 49
附  錄 50