金属带式无级变速传动节圆半径优化设计

Optimize Design on Pitch Radius of Metal V-belt Type Continuously Variable Transmission

无级变速传动是汽车理想的传动方式 ,是研究者和汽车公司研究的重点。通过建立金属带式无级变速传动的力学分析模型 ,导出了确定无级变速传动中最大转矩传递能力时最佳节圆半径的计算公式 ,提出了对无级变速传动进行节圆半径优化的设计方法和步骤 ,并进行了实例计算分析 ,结果表明 ,通过节圆半径优化能够提高带传动的承载能力。

Continuously variable transmission (CVT) is the ideal transmission for automobile, it is also one of the most important research items of researchers and automobile companies all over the world. By studying the force relationship of metal V-belt type continuously variable transmission, an optimum pitch radius is derived to maximize torque capacity, also a design procedure for optimum pitch radius is listed. The design procedure is applied for the true application, the calculation result shows that the torque capacity of belt transmission can be improved by optimization of the pitch radius. The research results provide the theory analysis method and design base for CVT vehicle.