凸包形仿生驱动滚筒摩擦传动机理的分析

 推导了摩擦传动过程中驱动滚筒所受压力的表达式，压力的大小与输送带张力有关。分析了输送带的弹性滑动现象，不同于打滑，是输送带运行必然存在的现象，其蠕动速度与围包角成指数关系。分析了凸包形仿生驱动滚筒的增摩机理，并考虑到压力、速度、表面形貌对橡胶表面摩擦性能的影响，确定了凸包形仿生驱动滚筒与输送带之间的摩擦系数的表达式，据此推导了新的摩擦传动公式。与传统欧拉公式相比，新的摩擦传动公式考虑了驱动滚筒与输送带之间摩擦系数的变化。

Analysis on Frictional Driving Mechanism of Convex Type Bionic Rubber Coated Driving Drum

he formula of the pressure on the driving drum in the course of friction transmission is deduced, and it is related to the tension of the belt. The creep phenomenon is studied to get that it is inevitable and is different from the slipping. The velocity of the creep increases exponentially with the wrap angle. The increasing friction mechanism of the bionic driving drum is analyzed and the formula of the friction coefficient between the belt and the driving drum is established in view of the influences from the pressure, velocity and surface appearance. Then the new friction transmission formula is deduced accordingly. Compared with the traditional Euler’s formula, the new formula takes the variation of the friction coefficient into account.