齿轮式脉动无级变速器改进与结构优化设计

发布时间：2018-06-06 08:36

本文选题：齿轮式脉动无级变速器 + 数学建模　；参考：《苏州大学》2011年硕士论文

【摘要】：普通连杆脉动式无级变速器存在着运动时连杆惯性力大、输出扭矩小以及调速范围窄等问题,制约了连杆脉动式无级变速器的应用。这对上述存在的问题,本文通过研究,设计了一种新型行星轮式无级变速器,该无级变速器具有脉动度低、调速范围广、输出扭矩大、机械效率高等特点。论文主要工作如下: ⑴本文从高机械效率、低脉动度的目的出发,首先提出了两种基于行星轮周转轮系的脉动无级变速器方案,而且还对这两种脉动式无级变速器进行了分析研究。结合已有的脉动式无级变速器的优缺点,确立了一种效率更高的新型脉动式无级变速器方案。 ⑵依据确立的新型无级变速器方案的运动学、动力学分析,构造了“齿轮式”脉动无级变速器动力学模型,并对其脉动度、最大输出角速度和调速范围等参数进行了较为深入的分析。 ⑶在理论研究的基础上,对无级变速器的行星轮系、调速机构进行了设计。同时对滚柱式超越离合器进行了改进设计。 ⑷最后利用专业仿真软件ADAMS对本设计的无级变速器进行运动学和动力学仿真研究,得到该变速器的输出角速度曲线、角加速度曲线、输出扭矩曲线,以及调速过程中的各曲线图。通过仿真得到该变速器的最大输出扭矩和功率,并得到了该变速器运动规律以及各部件的受力情况。并且通过仿真分析发现,该新型无级变速器的效率较已有的脉动式变速器有明显的提高。主要创新点: ⑴通过对脉动式无级变速器的分析研究,提出了一种新型齿轮式脉动无级变速器的结构方案。 ⑵通过对新型无级变速器的分析,构造了动力学模型。 ⑶通过对新型无级变速器结构优化仿真实验,初步证明了该新型齿轮式脉动无级变速器较传统的脉动无级变速器有更高的机械效率及输出速度。
[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.
【学位授予单位】：苏州大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH132.46

【引证文献】