中文摘要：

为研究啮合传动式新型活齿无级变速器（Innovative Movable-teeth CVT,i MCVT）的转矩传递能力,分析了其结构和工作原理,并与摩擦传动式金属带式无级变速器的转矩传递能力进行了对比分析;搭建了传动效率试验台,进行了三种工况下i MCVT传动效率与传递转矩关系的试验研究。结果表明,在三种试验工况下,新型活齿无级变速器稳定运行时,传递的转矩可达到220 N·m左右。当传递的转矩在180~220 N·m时,传动稳定,传动效率较高。与金属带式无级变速器相比,转矩传递能力更强,并且在传递大转矩时仍能保持92%的传动效率。

英文摘要：

In order to investigate the torque transmitting ability of the innovative Movable- teeth CVT（ i MCVT）,its construction and principle are analyzed,and then,a comparative analysis with the torque transmitting ability of the metal belt continuously variable transmission which is based on friction transmission is carried out. Lastly,the transmission efficiency test platform is set up to investigate the relationship between the transmission efficiency and the transmission torque of the i MCVT under three conditions. The results show that when the i MCVT operating stable under three conditions, the transmission torque could reach to about 220 N·m. When the transmission torque is at 180 ~ 220 N·m,the i MCVT transfer stably and the transmission efficiency is high. Compared with the metal belt continuously variable transmission,the torque transmitting ability of i MCVT is stronger,and still could keep the high transmission efficiency of 92% when transferring the high torque.