外波发生器谐波齿轮泵径向间隙设计

Design of the Radial Clearance of the Harmonic Gear Pump with External Wave Generator

介绍了谐波齿轮泵的结构原理,分析了泵体内流体的流动特性,从减小径向间隙引起的功率损失的角度出发,以径向间隙值为变量,推导出了径向泄漏引起的总的功率损失的表达式,并利用极值法,求出了刚轮齿顶与月牙板间隙的最优值。在此基础上举例分析,进一步验证了结论的合理性。

The structure and principle of the harmonic gear pump was introduced,the fluid flow characteristics of the pump was analysed,from the viewpoint of reducing the power loss caused by the radial gap of the pump,with the radial gap as design variable,the expression of the total power loss caused by radial leakage was deduced.Then by using the extremum method,the optimal gap between the rigid gear and the crescent board was calculated.An example was given to verify the reasonable of the result based on the analysis.