平行轴环面牵引式无级变速传动的接触特性

Contact Characteristics of Parallel Axle Toroidal Continuously Variable Transmission

对平行轴环面无级变速传动的接触点特性进行了研究,得出动力滚轮和输入、输出盘的接触区形状是椭圆,该椭圆接触区的扭矩传递能力、接触效率和由于自旋产生的效率损失可以用数值方法快速计算的积分方程来表示。为了对各种系统参数下的自旋效应有深入了解,进行了接触效率计算,并给出了相应的数值结果,以方便设计者选择合理的系统参数,减少自旋效应。

An analytical study on the contact characteristics of the parallel axle toroidal CVT has been detailed. The shapes of the contact areas between the power roller and input as well as output disks are considered to be ellipses. Mathematical equations for estimating the torque capacity, power loss due to spin action, and contact efficiency of the elliptical contacts of the parallel axle toroidal CVT are formulated and expressed in the form of integrals which can be readily evaluated by numerical scheme. The contact efficiency calculations of the parallel axle toroidal CVT have been developed for a precise understanding of the spin effects under the effect of system parameters. Numerical results are presented, which can help the designer to select the proper system parameters to minimize the undesirable spin effects.