论文标题:环锥行星式（RX）无级变速传动的研究及仿真
Research and Emulation of the RX Continuously Variable Transmission
论文作者
论文导师 任家骏,论文学位 硕士,论文专业 机械设计及理论
论文单位 太原理工大学,点击次数 253,论文页数 82页File Size2927k
2005-05-01论文网 http://www.lw23.com/lunwen_456762/
RX; Continuously Variable Transmission; Emulation;Movement; Dynamic
现代工业发展的脚步对传动装置的要求越来越高,在传动性能方面不仅要求传动系统可以实现无级变速(Continuously Variable Transmission),而且对传动精度的要求也在逐步升级,因而对无级变速传动的研究也越来越广泛,无级变速传动的种类和形式也越来越多。本文在开始部分扼要介绍了现有无级变速器的种类及其发展过程,并结合其在实际中的使用情况对未来无级变速传动发展的方向进行了展望。 本文所做的主要工作是对环锥行星式(RX)无级变速器进行运动及动力学仿真。环锥行星式无级变速器是一种机械摩擦式无级变速器,其结构是由行星齿轮传动通过变形得到的,将行星齿轮传动结构中的齿轮变成摩擦轮,依靠装配结构的压紧力来保证动力传递,通过改变行星锥与中心轮的接触半径来调节传动比,从而实现无级变速。 本文所用的仿真工具是Matlab中的Simulink工具箱,该工具箱可以很容易的由系统的数学模型建立其仿真模型,然后对所得到的结果在Matlab中稍加处理即可到各种数据曲线,从而可直观评价系统的性能。 无级变速器的运动和动力特性是衡量无级变速器好坏的重
The requisition for transmission device of the step of the modern industrial development is higher and higher, not merely require the transmission to realize continuously variable transmission , and the requisition for precision of the transmission is being upgraded progressively , therefore the research to the continuously variable transmission is more and more extensive, kinds and forms are more and more abundant. At the beginning of this paper, introduce the kinds and evolution of the existing continuously variable transmission box briefly, and looked forward to the transmitting development direction of the continuously variable transmission in the future based in the state it is used now.The main work that this paper done is the emulation in movement and dynamics to the RX continuously variable transmission box. The RX continuously variable transmission box is a kind of mechanic friction stepless transmission , its structure is through being out of the shape of the planet gear transmissionbox ,replace the gear in the planet gear box with friction wheel, it depends on the strength of the assembling structure to guarantee the force is transferred. Through regulate contact radius of the taper and centre wheel to realize the stepless transmission.The emulation tool that this text used is the Simulink toolbox of Matlab, it can very easily to set up their emulation model by mathematics model of the system, and then deal with various kinds of results data in Matlab to get it"s curves, thus evaluate the capability of the system intuitionistic.The movement and dynamics of the continuously variable transmission box are important performance in valuing it"s quality, this paper considers from the design process of the continuously variable transmission box. First the emulation of the movement is done during the step that can only get the structure parameter, later with the deepening of the design process, when the dynamic characteristic parameters is offered , we can use the dynamic model to carry on dynamics emulation , thus have an overall and careful understanding to the whole structure.Emulation as a kind of method is not only can be used in the movement and dynamics, but also can be used in various kinds of characteristics that can set up the mathematics model, and it is not merely used in the continuously variable transmission box too, but the machinery of different types. The emulation that this text does is the emulation to the continuously variable transmission box, it isalso a exploration of this kind of method too.
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