594 HKD640微型客車設(shè)計（變速器及操縱機構(gòu)設(shè)計設(shè)計）（有cad圖）

594 HKD640微型客車設(shè)計（變速器及操縱機構(gòu)設(shè)計設(shè)計）（有cad圖）,594,HKD640微型客車設(shè)計（變速器及操縱機構(gòu)設(shè)計設(shè)計）（有cad圖）,hkd640,微型,客車,設(shè)計,變速器,操縱,機構(gòu),cad HKD640微型客車設(shè)計（變速器及操縱機構(gòu)設(shè)計設(shè)計） 摘 要 變速器為一能將發(fā)動機動力傳至汽車驅(qū)動車輪的齒輪系統(tǒng)。當(dāng)離合器接合時，變速器通過其輸入軸接受來自發(fā)動機的轉(zhuǎn)矩。轉(zhuǎn)矩接著通過一組齒輪傳遞，或增大或直接傳遞。最后產(chǎn)生的轉(zhuǎn)矩推動間接與驅(qū)動車輪相連的變速器輸出軸轉(zhuǎn)動。所有變速器均有兩種主要功能：根據(jù)各種各樣的條件選擇不同的速度比，并提供使汽車運動反向的方式。 變速器有機械式手動變速器和機械式無級變速器兩種，如果變速器擋位多其動力性和經(jīng)濟性得到保證，擋位少其操縱方便，本次設(shè)計我設(shè)計的是微型客車變速器，本次設(shè)計中：首先，我對變速器傳動機構(gòu)布置方案做了分析，然后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。接著確定了第二軸與中間軸的中心距，并且根據(jù)中心距和各檔傳動比分配好各檔齒輪的齒數(shù)及各參數(shù)。結(jié)合總體的要求操縱機構(gòu)形式選用直接操縱機構(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度都滿足設(shè)計要求。 關(guān)鍵詞：變速器，設(shè)計，輕型載貨汽車，傳動比 5 Ⅰ HKD640 PASSENGER TRANSMISSION AND CONTROL DESIGN ABSTRACT Transmission for a can of engine power to drive the car wheel gear system. When the clutch engagement, transmission through its input shaft from the engine torque. By a group of torque and then transfer, or increase or gear transmission directly. The push of torque and drive wheels of indirect transmission output shaft rotation. All transmission are two main functions: according to the various conditions of different choices, and provide faster than a car to reverse way Manual transmission and mechanical transmission is mechanical patterned step-less variator transmission gears, if two more than its performance and fuel economy of guaranteed, block the manipulation convenient, the less I design is designed, the passenger transmission design: first, I drive mechanism of transmission layout, then analyses its transmission to the careful analysis and calculation related models of the final against the transmission ratio, the transmission mechanism plan layout has made the detailed analysis finally chooses 5 + 1 block transmission, shift oart type synchronizer shift by form. Then determine the second shaft and the center distance, and because the center distance and according to the distribution of transmission gears of good combinations and parameters. Combined with the overall request form directly manipulated mechanism selection control form. This design is the transmission of the car to meet performance also satisfy its economic indicators. Finally, through the gears, bearings, checking, its size and its components of transmission of strength and meet the design requirements. Keywords: transmission, design, light vehicles, transmission 符號說明 M —汽車總重量 — 發(fā)動機轉(zhuǎn)矩 — 滾動半徑 —一檔傳動比 —二檔傳動比 —三檔傳動比 —五檔傳動比 —到檔傳動比 —主減速比 —道路最大阻力系數(shù) K—中心距系數(shù) —變速器傳動效率 —應(yīng)力集中系數(shù) —摩擦力影響系數(shù) —齒輪的齒數(shù) —齒型系數(shù) —齒輪彎曲應(yīng)力 ─圓周力 ─應(yīng)力集中系數(shù) kC─齒面寬系數(shù)； t─法向齒距 y─齒行系數(shù) k─重合度影響系數(shù) ─摩擦力影響系數(shù) —鍵與輪轂鍵槽的接觸高度 —鍵的工作長度，，圓頭平鍵，這里的為鍵的公稱長度，；為鍵的寬度， —軸的直徑， —鍵、軸、輪轂三者中最弱材料的許用擠壓應(yīng)力