任意齿差纯滚动活齿传动齿形设计及传动性能研究

Study on Tooth Profile Design and Transmission Performance of Pure Rolling Movable Tooth Transmission With Arbitrary Tooth Difference

任意齿差纯滚动活齿传动对于齿形要求较高,而高次多项式类曲线会使得机构无刚性和柔性冲击,因此基于五次多项式类曲线设计新的齿形以满足要求。根据机构的转速变换推导中心轮的齿廓方程,进而设计活齿传动齿形,并分析活齿轴半径与中心轮齿形之间的关系;通过探究活齿传动的传动特性,结合其啮合原理和最小压力角等表征参数进行分析,并结合具体实例进行设计,验证了理论的有效性。

The pure rolling movable tooth transmission with arbitrary tooth difference has higher requirements on the tooth profile,and the high-order polynomial curve will make the mechanism without rigid and flexible impact.Therefore,this paper designs a new tooth profile based on the fifth-order polynomial curve to meet the requirements.Derive the tooth profile equation of the center wheel according to the speed transformation of the mechanism,and then design the movable tooth transmission tooth profile,and analyze the relationship between the radius of the movable tooth shaft and the tooth profile of the center wheel;by exploring the transmission characteristics of the movable tooth transmission,combining its meshing principle And the minimum pressure angle and other characteristic parameters for analysis.And combined with specific examples to design and verify the validity of the theory in this paper.