SLS型轎車(chē)二軸式四檔變速器設(shè)計(jì)

論文編號(hào):JX1536  論文字?jǐn)?shù):12042.頁(yè)數(shù):54  附任務(wù)書(shū)，開(kāi)題報(bào)告，外文翻譯，CAD圖，答辯PPT

SLS型轎車(chē)二軸式四檔變速器設(shè)計(jì)

 【摘要】 汽車(chē)是現(xiàn)代社會(huì)的主要運(yùn)輸工具之一。汽車(chē)的動(dòng)力來(lái)源于活塞式內(nèi)燃機(jī)，而它的轉(zhuǎn)矩和轉(zhuǎn)速的變化范圍非常小，在復(fù)雜的使用環(huán)境中，就需要汽車(chē)的牽引力和汽車(chē)的速度在較大的范圍內(nèi)變化。因此，汽車(chē)的傳動(dòng)系統(tǒng)中配備了變速器。通過(guò)不斷改變傳動(dòng)比，使得驅(qū)動(dòng)輪的轉(zhuǎn)矩和車(chē)速不斷地變化，從而滿(mǎn)足了行駛的要求。通過(guò)設(shè)置倒檔，可以實(shí)現(xiàn)汽車(chē)的前進(jìn)或后退，而利用空檔可以終止動(dòng)力的傳遞，既實(shí)現(xiàn)檔位之間的互換，又可以保護(hù)齒輪免受沖擊。此次設(shè)計(jì)為SLS型轎二軸式車(chē)四檔變速器，它有四個(gè)前進(jìn)檔，一個(gè)倒檔，它的傳動(dòng)比依次為：Ⅰ=2.92；Ⅱ=1.81；Ⅲ=1.12；Ⅳ=0.7；倒檔是2.38。該變速器為有級(jí)的二軸式齒輪變速器，輸入軸上安裝四個(gè)前進(jìn)檔和一個(gè)倒檔主動(dòng)齒輪；輸出軸上安裝則是四個(gè)前進(jìn)檔和一個(gè)倒檔從動(dòng)齒輪，倒檔軸上安裝一個(gè)雙聯(lián)齒輪，它可以避免齒輪之間的相互干涉。三個(gè)同步器統(tǒng)一安裝在輸出軸上，通過(guò)同步器，可以實(shí)現(xiàn)換檔、倒檔和空擋，滿(mǎn)足行駛的要求。
 
 【關(guān)鍵詞】變速器；檔；傳動(dòng)比；齒輪；軸；同步器

SLS sedan four speed transmission

 [Abstract] Car is one of the main means of transport in modern society. The automobile is one of the main conveyance tools of the modern societies. the automobile power originates from the internal-combustion reciprocating engine, but its torque and the rotational speed range of variation is extremely small, but the complex use environment, needs the automobile the force of traction and the automobile speed in an greater scope change. Therefore， transmission in the car with a transmission. By changing the transmission ratio, making the driving wheel torque and speed are constantly changing to meet the driving requirements. By setting the reverse, the car can go forward or backward, while the gap can be terminated by the transmission of power, realized exchange between the stalls, but also to protect the gears from shock. The design for the SLS sedan fourth gear transmission, which has four forward gears, one reverse, its velocity ratio is in turn: I =2.92; II =1.81; III =1.12; IV =0.7; The reverse gear is 2.38. The transmission is a class of two axis gear transmission, the input shaft to install the four forward gears and one reverse gear; output shaft installation is the four forward gears and one reverse driven gear, reverse gear shaft installation A double-Gear, it avoids interference between the gears. Installed on the three synchronizers unified output shaft, through the synchronizer, can shift, reverse and neutral, to meet the driving requirements.

 [Key word] Transmission gearbox; Files; Velocity ratio; Gear; Axis; Synchromesh

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 Ⅷ
1 變速器的構(gòu)造 1
1.1 傳動(dòng)示意圖 1
1.2 主要結(jié)構(gòu)說(shuō)明 2
1.3 變速器主要零件結(jié)構(gòu)的方案分析 2
2 設(shè)計(jì)參數(shù) 5
2.1 傳遞功率或扭矩 5
2.2 初選傳動(dòng)比 （傳動(dòng)比允差:10%） 5
3 變速器的主要參數(shù) 6
3.1 中心距A的初算與確定 6
3.2 變速器的總體軸向尺寸的初算與確定 6
3.3 齒輪參數(shù)（壓力角，齒數(shù)，模數(shù)）的初算與確定 6
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 其余檔斜齒輪的幾何尺寸計(jì)算 11
4.2 倒檔齒輪的幾何尺寸計(jì)算 14
5 各檔齒輪的強(qiáng)度計(jì)算 17
5.1 齒輪的損壞原因及形式 17
5.2 齒輪的強(qiáng)度計(jì)算與校核 17
6 軸的強(qiáng)度計(jì)算 37
6.1 輸入軸的強(qiáng)度計(jì)算 37
6.2 輸出軸的強(qiáng)度計(jì)算 40
7 滾動(dòng)軸承的壽命計(jì)算 44
7.1 輸入軸軸承壽命計(jì)算 44
7.2 輸出軸軸承壽命計(jì)算 45
8 潤(rùn)滑 47
8.1 變速器內(nèi)潤(rùn)滑油量 47
8.2 潤(rùn)滑油 47
9結(jié)論 48
參考文獻(xiàn) 49
致  謝 50
附錄 51