基于MATLAB的连杆齿啮式脉动无级变速器运动学研究

Research of the Kinematics of Rod-gear Type Pulse CVT based on Matlab

在对连杆齿啮式脉动无级变速器传动机构分析的基础上,建立了等效平面六杆机构的封闭矢量方程;采用矩阵法构建了单相传动机构中连杆、摇杆与啮合点到输入轴轴心连线的角位移、角速度和角加速度的运动学数学模型;应用MATLAB程序对连杆、摇杆和输出轴盘3个关键构件进行了运动学仿真。结果表明,连杆齿啮式无级变速器具有变速范围大和脉动率低等优点,也存在连杆、摇杆惯性力较大和输出轴盘受到冲击较大等缺点。

Based on the analysis of transmission mechanism of rod - gear type Pulse Continuously Variable Transmission （P -CVT） , the closed vector equations of equivalent plane six -bar mechanism are built. The kinematic mathematical model of angular displacement, angular velocity and angular acceleration of connecting rod, rocker and meshing point to input shaft axis of single phase transmission mechanism is constructed by the matrix method. At last, the kinematics simulation of three key components of connecting rod, rocker and output shaft plate is carried out by using MATLAB program. The results show that the rod - gear type CVT has the advantages of large variable speed range and low pulse rate, it also has the disadvantages of large inertia force of rod, rocker and large impact of output shaft disc etc.