辛普森式商務車自動變速器結構設計【行星齒輪變速箱優(yōu)秀課程畢業(yè)設計含6張CAD圖紙+帶開題報告+文獻綜述+外文翻譯】-jxsj62
辛普森變速器結構設計
摘 要
目前，自動變速器在汽車領域的應用越來越廣泛。其中主要原因是自動變速器能夠根據(jù)路面狀況自動改變車速，這極大地方便了駕駛者。不僅能夠緩解駕駛者駕駛疲勞減少路面交通事故，而且還能夠提高汽車的燃油經濟性。同時，還能提高汽車的動力性。行星齒輪變速箱主要結構為行星齒輪機構，行星齒輪機構主要由太陽輪、外齒圈、行星輪、行星架組成。由于行星齒輪機構具有兩個自由度，因此行星齒輪機構沒有固定的的傳動比，不能直接應用于變速器。為了能夠將行星齒輪變速器應用于自動變速器，必須將齒輪機構中的元件固定使其具有一個自由度。只有一個自由度的行星齒輪機構具有固定的傳動比，因此可以應用于自動變速器中。我設計的為商務車行星齒輪變速箱，行星齒輪機構具有結構緊湊、剛度大、傳動平穩(wěn)等優(yōu)點。行星齒輪變速箱動力改變由液力變矩器進行控制，其操縱機構為離合器和制動器，并通過液壓油進行控制，從而實現(xiàn)自動換擋。但是，自動變速器結構比較復雜。通過這次畢業(yè)設計我對自動變速器原理做了大量的工作并參考商務車車型最終確定了其傳動方案，并對各檔傳動比做了詳細的說明。
關鍵詞：自動變速器 行星齒輪變速箱 液力變矩器
Abstract
At present, more and more widely applied in the field of automatic transmission in car.The main reason is that automatic transmission can change the speed automatically according to the road conditions, it has made great drivers.Not only can alleviate drivers driving fatigue reduce road traffic accidents, but also can improve the fuel economy of the car.At the same time, it can improve power performance of car.Planetary gear transmission main structure for a planet gear mechanism, the planetary gear mechanism is mainly composed of the sun wheel, outer ring gear, planetary wheel, planet carrier.Because the planet gear mechanism has two degrees of freedom, so the planet gear mechanism has no fixed transmission ratio, cannot be directly applied to the transmission.In order to be able to will be applied in the automatic transmission planetary gear transmission, the gear mechanism of components must be fixed exhibit a degree of freedom.There is only one degree of freedom of planet gear mechanism has a fixed ratio, thus can be used in the automatic transmission.I design for commercial vehicles planetary gear transmission, the planet gear mechanism has the advantages of compact structure, large rigidity, smooth transmission.Planetary gear transmission power changes controlled by hydraulic torque converter, its operating mechanism for the clutch and brake, and the control with the hydraulic oil, so as to realize automatic shift.However, the automatic transmission structure is more complex.Through this graduation design I made a lot of work on automatic transmission principle and refer to commercial vehicles models ultimately determine the transmission scheme, and has made the detailed instructions for each transmission ratio.
KeyWords:automatic transmisson lanetary gearbox torque converter
目 錄
摘 要 Ⅰ
Abstract Ⅱ
第1章 自動變速器的基本組成 1
第2章 行星齒輪和液力變矩器的工作原理 4
2.1 行星齒輪的結構及工作原理 4
2.2 液力變矩器的工作原理 5
第3章 自動變速器傳動方案及傳動原理 6
3.1 自動變速器的傳動方案 6
3.2 自動變速器的傳動原理 6
3.2.1 空擋或駐車擋的傳動原理 6
3.2.2 D位D1擋汽車加速與滑行時傳動原理 7
3.2.3 汽車在L位一擋時前后行星排的傳動原理 10
3.2.4 D位D2擋傳動原理圖 13
3.2.5 二擋時自動變速器的傳動原理圖 16
3.2.6 D位D3擋時，自動變速器的傳動原理 18
3.2.7 超速擋傳動原理 19
3.2.8 自動變速器的倒檔傳動原理 21
第4章 行星齒輪機構設計及計算…………………………………………..23
4.1 變速器齒輪傳動的設計及計算 23
4.1.1 各擋位傳動比分析 23
4.1.2 齒輪參數(shù)設計及計算 23
4.1.3 實際傳動比 25
4.1.4 齒輪強度校核 25
4.2 換擋執(zhí)行機構 26
4.2.1 多片離合器 27
4.2.2 制動器 27
4.2.3 單向超越離合器 28
第五章 結論 29
致 謝 30
參考文獻 31
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CAXA圖紙副本
動力傳遞路線---A3.dwg
后行星排齒輪輸入軸A2.dwg
外文翻譯.docx
文件清單.txt
液力變矩器外殼體A1.dwg
液力變矩器總成A1.dwg
裝配體A0.dwg
輸入軸A2.dwg
辛普森變速器結構設計.docx
辛普森式商務車自動變速器結構設計【行星齒輪變速箱】開題報告.doc
辛普森式商務車自動變速器結構設計【行星齒輪變速箱】文獻綜述.doc
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