论文部分内容阅读
为了进一步研究无级变速器在传动过程中的机理特性,在带传动中引入传动带的弹性变形效应,同时考虑分层传动带之间和传动带与带轮间的摩擦作用,建立带传动稳态运转模型,分析系统在稳态运转过程中传动带摩擦力、张紧力和速度在带轮不同位置和不同传动比下的变化规律。研究结果表明:主动轮区域,当摩擦接触表面摩擦因数较小时,最内侧的传动带将会承担大量载荷,摩擦因数足够大时,各层传动带将会近乎分担相同的载荷,从动轮区域则相反;在主动轮区域最内层传送带传动速度最高并自内向外逐渐下降,随着传送带及带轮之间摩擦因数的增加,各层传送带的速度均增加,从动轮区域则相反;当系统固定带轮间存在一定间距,在传动比为1时传动带长度最小,随着传动比的变化,传动带长度都将呈现增加的趋势。
In order to further study the mechanism characteristics of the continuously variable transmission in transmission process, the elastic deformation effect of the transmission belt is introduced into the belt transmission. At the same time, the frictional action between the delamination belt and the belt and the pulley is considered, The variation regularity of the friction, tension and speed of the belt in different position and different gear ratio of the pulley during the steady operation was analyzed. The results show that when the friction coefficient of the frictional contact surface is small, the innermost belt will bear a large amount of load. When the friction coefficient is large enough, the belts in all layers will share almost the same load and the opposite of the driven wheel. In the driving wheel area, the innermost conveyor belt has the highest transmission speed and gradually decreases from the inside to the outside. As the friction coefficient between the belt and the belt increases, the speed of each belt increases and the area of the driven wheel is opposite. When the system fixed pulley There is a certain distance between the transmission ratio is 1, the smallest transmission belt length, with the transmission ratio changes, the transmission belt length will show an increasing trend.