本文選題：齒輪式脈動無級變速器 + 數(shù)學(xué)建模��； 參考：《蘇州大學(xué)》2011年碩士論文

【摘要】：普通連桿脈動式無級變速器存在著運動時連桿慣性力大、輸出扭矩小以及調(diào)速范圍窄等問題,制約了連桿脈動式無級變速器的應(yīng)用。這對上述存在的問題,本文通過研究,設(shè)計了一種新型行星輪式無級變速器,該無級變速器具有脈動度低、調(diào)速范圍廣、輸出扭矩大、機械效率高等特點。論文主要工作如下: ⑴本文從高機械效率、低脈動度的目的出發(fā),首先提出了兩種基于行星輪周轉(zhuǎn)輪系的脈動無級變速器方案,而且還對這兩種脈動式無級變速器進行了分析研究。結(jié)合已有的脈動式無級變速器的優(yōu)缺點,確立了一種效率更高的新型脈動式無級變速器方案。 ⑵依據(jù)確立的新型無級變速器方案的運動學(xué)、動力學(xué)分析,構(gòu)造了“齒輪式”脈動無級變速器動力學(xué)模型,并對其脈動度、最大輸出角速度和調(diào)速范圍等參數(shù)進行了較為深入的分析。 ⑶在理論研究的基礎(chǔ)上,對無級變速器的行星輪系、調(diào)速機構(gòu)進行了設(shè)計。同時對滾柱式超越離合器進行了改進設(shè)計。 ⑷最后利用專業(yè)仿真軟件ADAMS對本設(shè)計的無級變速器進行運動學(xué)和動力學(xué)仿真研究,得到該變速器的輸出角速度曲線、角加速度曲線、輸出扭矩曲線,以及調(diào)速過程中的各曲線圖。通過仿真得到該變速器的最大輸出扭矩和功率,并得到了該變速器運動規(guī)律以及各部件的受力情況。并且通過仿真分析發(fā)現(xiàn),該新型無級變速器的效率較已有的脈動式變速器有明顯的提高。 主要創(chuàng)新點: ⑴通過對脈動式無級變速器的分析研究,提出了一種新型齒輪式脈動無級變速器的結(jié)構(gòu)方案。 ⑵通過對新型無級變速器的分析,構(gòu)造了動力學(xué)模型。 ⑶通過對新型無級變速器結(jié)構(gòu)優(yōu)化仿真實驗,初步證明了該新型齒輪式脈動無級變速器較傳統(tǒng)的脈動無級變速器有更高的機械效率及輸出速度。
[Abstract]:The application of the linkage pulsating stepless transmission is restricted by the problems of large inertia force, small output torque and narrow speed range in the ordinary connecting rod pulsating stepless transmission. In this paper, a new type of planetary wheel stepless transmission is designed, which has the characteristics of low pulsation, wide speed range, large output torque and high mechanical efficiency. The main work of this paper is as follows: 1 in this paper, for the purpose of high mechanical efficiency and low pulsation, two schemes of pulsating stepless transmission based on planetary wheel turnover gear train are put forward. In addition, the two pulsating stepless transmissions are analyzed and studied. Combined with the advantages and disadvantages of the existing pulsating stepless transmission, a new type of pulsating stepless transmission scheme with higher efficiency is established. 2 according to the kinematics and dynamics analysis of the established new stepless transmission scheme, The dynamic model of "gear type" pulsating stepless transmission is constructed, and the parameters such as pulsation degree, maximum output angular velocity and speed range are analyzed deeply. 3 on the basis of theoretical research, the planetary gear train of stepless transmission is studied. The speed regulating mechanism is designed. At the same time, the design of roller overrunning clutch is improved. Finally, the kinematics and dynamics simulation of the stepless transmission is carried out by using professional simulation software Adams, and the output angular velocity curve and angular acceleration curve of the transmission are obtained. Output torque curve, as well as the speed control process of each curve diagram. The maximum output torque and power of the transmission are obtained by simulation, and the motion law of the transmission and the force on each component are obtained. And through simulation analysis, it is found that the efficiency of the new stepless transmission is obviously improved than that of the existing pulsating variable transmission. The main innovation points are as follows: 1 through the analysis and research of the pulsating stepless transmission, A structure scheme of a new type of gear pulsating stepless transmission is put forward. 2 by analyzing the new type of stepless transmission, a dynamic model is constructed. 3 through the simulation experiment of the structure optimization of the new type stepless transmission, It is preliminarily proved that the new gear pulsating stepless transmission has higher mechanical efficiency and output speed than the traditional pulsating stepless transmission.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2011
【分類號】：TH132.46

【引證文獻】

相關(guān)期刊論文 前1條

1 曾文;王玉興;夏紅梅;卿艷梅;;新型機械式無級變速器的設(shè)計及優(yōu)化[J];中國機械工程;2013年13期

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本文編號：1985922