Development of combined-type continuous variable transmission with quadric crank chains, one-way clutches and solid-cams

在这项研究中，我们开发了一种新型的无级变速器（L-CVT）。建议的L-CVT由一对四连杆曲柄链，单向离合器和固体凸轮。该机构中对称布置有两条相同的四连杆曲柄链。由于该机构不是基于摩擦传导的，因此该机构无噪声、耐用、传动效率高。为了实现无级变速器的功能，我们设计了一个与连杆长度响应相对应的盘形凸轮。然后，我们安装了板凸轮的L-CVT原型模型。因此，我们设计了一种带有平板凸轮的L-CVT，其中平板凸轮的旋转与曲柄的旋转之间的同步可以机械地实现。最后，L-CVT的行为已被证实的数值模拟。

In this study, we have developed a new type of continuously variable transmission (L-CVT). The proposed L-CVT consists of a couple of quadric crank chains, one-way clutches and solid-cams. Two identical quadric crank chains are placed symmetrically in the mechanism. Since the proposed mechanism is not based on friction conduction, it provides a mechanism that creates no noise, is durable, and offers high transmission efficiency.We have designed a plate cam which corresponds to the response of the length of a connecting rod to realize the function of CVT. Then, we installed the plate cam to the L-CVT prototype model. Thus, we have designed a L-CVT with a plate cam in which the synchronization between the rotation of the plate cam and the one of the crank can be taken mechanically. Finally, the behavior of the L-CVT has been confirmed by numerical simulations.