学位论文—-菱锥式无级变速器结构设计.doc

哈尔滨理工大学学士学位论文- I- 菱锥式无级变速器结构设计摘要菱锥式无级变速器是摩擦式无级变速器的一种,其运动的传递主要是依靠摩擦力来实现的。在本设计中,中间传动元件是菱形的锥轮。在传递运动时,菱锥式无级变速器是通过改变两锥轮的瞬时接触半径以改变传动比,从而实现输出轴的输出扭矩和转速可以任意变化。在本设计中详细的分析了在传动运动过程中变速器的输入轴、输出轴、主动轮、加压装置、菱锥、从动轮和从动外环的工作原理以及在传动过程中各零部件的受力关系;对于菱锥锥轮式无级变速器设计时所需要用的计算公式,在本文中进行了详细的推导与证明;并对给定参数进行计算,校核设计参数;最后将菱锥锥轮式无级变速器的装配图和变速器上的主要传动元件(例如菱锥,输入轴和输出轴等)的零件图按照计算校核所得数值进行绘制,从而将此菱锥式无级变速器的工艺和结构等方面的要求表现的更为清楚。由于菱锥式无级变速器绝在传递运动和扭矩时是依靠菱锥与主动轮和从动外环之间的摩擦力,所以,只要摩擦力足够大既可以避免打滑现象的产生。从而可以满足的传动比要求。但是,如果传动的过程中存在震动、冲击和过载情况,则会导致传动比的不准确性。因此在使用菱锥式无级变速器的场合应该尽量避免上述情况的发生。虽然,菱锥式无级变速器在传动过程中可能存在传动比不准确的缺点。但是,菱锥式无级变速器具有良好的结构和优越的性能。由于可实现大范围的无级变速。因此,菱锥式无级变速器在实际生产中具有很强的实用价值。完全可以在对传动比要求不是非常准确,却又需要能进行无级变速的场合起到重要作用。关键词无级变速器;摩擦式;菱锥式哈尔滨理工大学学士学位论文- II- Kopp-K mechanical structure design Abstract Kopp-K isa kind of frictional stepless transmission, the movement of the transmission is mainly rely on the friction. In this design, transmission element is diamond cone wheel in the middle. When passing movement, Kopp-K isby changing the two cone wheel radius of instantaneous contact to change the transmission ratio, so as to realize the output torque and rotational speed of the output shaft can be arbitrarily change. In this design, the detailed analysis in the process of transmission movement transmission input shaft and output shaft, driving wheel, pressure device, ling cone, driven wheel and the driven work principle of the outer ring and in the process of driving force of parts of relationship; For ling cone wheel to stepless transmission design calculation formula, in this article has carried on the detailed derivation and proof; And for a given parameter to calculate, check the design parameters; Finally to ling cone wheel type stepless transmission on the assembly drawing and the transmission of the main ponents (such as ling cone, the input shaft and output shaft, etc.) of the part drawing shall be carried out in accordance with the calculated from numerical mapping, thus the Kopp-K process and structure performance requirements mo