手動變速器畢業(yè)設(shè)計-畢業(yè)設(shè)計(已修改)
2025-02-04 11:41 本頁面
【正文】 I 手動變速器設(shè)計 摘 要 變速器作為汽車的一個重要組成部分，是用來改變發(fā)動機(jī)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。 變速器有機(jī)械式手動變速器和機(jī)械式無級變速器兩種，如果變速器擋位多其動力性和經(jīng)濟(jì)性得到保證，擋位少其操縱方便，本次設(shè)計我設(shè)計的是輕型貨車變速器，本次設(shè)計中我對其傳動比作了仔細(xì)的分析計算并參考相關(guān)車型最終確定了各擋的傳動比，針對變速器的傳動機(jī)構(gòu)方案的布置作了詳細(xì)的分析最終選用 5+1擋中間軸式變速器，換擋形式采用同步器換擋。結(jié)合總 體的要求操縱機(jī)構(gòu)形式選用直接操縱機(jī)構(gòu)形式。本次設(shè)計的變速器即滿足了汽車必要的動力性也滿足了其經(jīng)濟(jì)性的指標(biāo)。最后通過對齒輪、軸、鍵、軸承等的校核，其變速器的尺寸及其部件的強(qiáng)度都滿足設(shè)計要求。 變速器的發(fā)展趨勢是越來越復(fù)雜，自動化程度也越來越高，自動變速器將是未來的主流。 關(guān)鍵詞： 變速器 ， 設(shè)計，輕型貨車，傳動比 II THE GENERAL DESIGHN OF TRANSMISSION ABSTRACT Transmission as an important ponent of car is used to change the engine reached the powerwheele’s torque and rotational speed, in order to get different power and speed in start, climbing, turning, accelerating, and other case of travel. Transmission has two styles of mechanical manule transmission and mechanical devices continues transmission, if the transmission’s shift more its power and economic was guaranteed, if fewer its manipulation is convenience, this design I design a light truck transmission, this design I determined the peed ratio after careful analys of peed ratio and ultimately the relevant type of the car, I made a careful analysis of the layout of the drive agency programmers against the transmission and finally use the 5+1 block intermediate transmission, the form of shift use a synchronous device. After requested the overall the form of agencies use direct manipulation institutional forms. This designed of transmission meet the dynamic of the necessary power also meet its economic targets. Final adoption the degree of gear, axle, keys, bearings, etc. the size of transmission and strength of ponents are designed to meet the requirements. The development trend of the transmission is more plex, more and more is also high automation degree, automatic transmission is the mainstream of the future. KEY WORDS: Transmission, Design, light truck, Speed ratio. III 目 錄 前 言 ....................................................................................................... 1 第 1 章 變速器傳動機(jī)構(gòu)布置 .....................................................
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