汽車無級變速器設(shè)計[汽車-cvt型]【含CAD高清圖紙和文檔】

【溫馨提示】 dwg后綴的文件為CAD圖，可編輯，無水印，高清圖，壓縮包內(nèi)文檔可直接點開預(yù)覽，需要原稿請自助充值下載，請見壓縮包內(nèi)的文件及預(yù)覽，所見才能所得，請細心查看有疑問可以咨詢QQ：414951605或1304139763 哈爾濱工業(yè)大學(xué)華德應(yīng)用技術(shù)學(xué)院畢業(yè)設(shè)計（論文）摘 要無級變速器特點是采用傳動帶和工作直徑可變的主、從動輪相配合傳遞動力。由于無級變速器可以實現(xiàn)傳動比的連續(xù)改變，從而得到傳動系與發(fā)動機工況的最佳匹配，提高整車的燃油經(jīng)濟性和動力性，改善駕駛員的操縱方便性和乘員的乘坐舒適性，所以它是理想的汽車傳動裝置。無級變速系統(tǒng)主要包括主動輪組、從動輪組、金屬帶（關(guān)鍵所在）和液壓泵等基本部件。 主動輪組和從動輪組都由可動盤和固定盤組成，與油缸結(jié)合的一側(cè)帶輪軸向滑動，另一側(cè)則固定?？蓜颖P與固定盤都是錐面結(jié)構(gòu)，它們的錐面形成V型槽與V型金屬帶嚙合。發(fā)動機輸出軸輸出的動力首先傳遞到無級變速器的主動輪，然后通過V型傳動帶傳遞到從動輪，最后經(jīng)減速器、差速器傳遞給驅(qū)動輪。工作時通過主動輪與從動輪的可動盤作軸向移動來改變主動輪、從動輪錐面與V型傳動帶嚙合的工作半徑，從而改變傳動比?？蓜颖P的軸向移動量是由駕駛者根據(jù)需要通過控制系統(tǒng)調(diào)節(jié)主動輪、從動輪液壓泵油缸壓力來實現(xiàn)的。本設(shè)計旨在通過對金屬帶式無極變速器的研究，找到可循的改良方案。關(guān)鍵詞 無級變速器；金屬帶式無極變速器；無級變速器設(shè)計AbstractCharacteristics of continuously variable transmission belts and work with a diameter of variable from the wheel fit transfer of power. Due to the continuous change of continuously variable transmission can implement the ratio in order to get the best match of transmission and engine condition, improving vehicle fuel economy and power, improve the operating convenience of drivers and passengers riding comfort, it is an ideal vehicle transmission device. Continuously variable transmission system which includes round group, from the wheel group, the metal with the key and basic components of hydraulic pump. Active Wheel Group and passive Wheel Group is composed of movable and fixed disk, and combine cylinder side with Axial sliding and the other side is fixed. Movable and fixed cone structure, they cone Form V type slot with V - type metal belt mesh. Engine output shaft of output power first delivered to continuously variable transmission for driving wheels, and then by V - belt transmission wheel, the final reducer and differential pass driving wheels. Work by driving wheels with gear of movable to move to change the driving wheels, from the work of V - belt mesh and gear cone radius, thus changing the ratio. Movable plate under Axial movement, which was driven by needs through the control system of active round, from the wheel Hydraulic Pump cylinder pressure to achieve. This is designed by the study of metal V - belt type non - polar transmission, found through improvement scheme.Key words ：CVT ；Metal Belt Continuously Variable Transmission；Continuously Variable Transmission目錄摘 要IAbstractII第1章 緒論1 1.1 汽車無級變速器的類型和特點21.1.1 寬V形膠帶式無級變速器2 1.1.2 環(huán)盤滾輪式無級變速器2 1.1.3 擺銷鏈式無級變速器2 1.1.4 金屬帶式無級變速器3 1.1.5 CVT汽車能節(jié)油的原理5 1.1.6 無級變速器使用的注意事項5 1.1.7 CVT未來的發(fā)展趨勢61.2 本章小結(jié)7第2章 金屬帶式無極變速器基本工作原理72.1 金屬帶式無極變速器基本組成82.2 金屬帶式無極變速器的幾何關(guān)系和基本參數(shù)102.3 金屬帶式無極變速器傳動參數(shù)設(shè)計142.3.1 輸入軸參數(shù)設(shè)計142.3.2 金屬帶輪參數(shù)設(shè)計152.4 本章小結(jié)16第3章 金屬帶式無極變速器傳動和承載能力校核183.1 摩擦傳動原理和摩擦因數(shù)183.1.1 摩擦傳動原理183.1.2 摩擦因數(shù)193.2 金屬帶傳動的力分析193.2.1 金屬帶上的作用力即各力的關(guān)系193.3 帶環(huán)的強度計算233.3.1 帶環(huán)的靜強度計算233.2.2帶環(huán)的疲勞強度計算233.4 本章小結(jié)24第4章 金屬帶式無級變速器的匹配設(shè)計254.1 汽車傳動系的結(jié)構(gòu)組成與任務(wù)254.2 無級變速器運動參數(shù)設(shè)計254.2.1 變速比Rb254.2.2 發(fā)動機最小燃油消耗特性254.2.3 汽車的、齒輪減速比及無級變速器傳動比274.3 本章小結(jié)28第5章 雙行星輪行星換向機構(gòu)設(shè)計295.1 換向機構(gòu)組成及工作原理295.2 前進、倒檔離合器295.3 雙行星輪換擋機構(gòu)參數(shù)設(shè)計305.3.1齒輪參數(shù)的設(shè)計315.4 本章小結(jié)34結(jié)論35致 謝36附錄1 譯文38附錄2 英文參考資料39-5-