谐波齿轮精确间隙分析可视化仿真

Accurate Analysis of Harmonic Gear Clearance and Visual Simulation

研究谐波齿轮传动优化问题,渐开线齿廓代替齿轮共轭齿廓时,存在齿轮重叠干涉影响精度问题。为保证齿轮既不发生干涉又能实现精确传动,且提高计算精度与收敛速度,提出根据齿顶干涉检验法的自动优化算法。通过图形界面参数化设计进行迭代计算,快速精确计算出最小啮合间隙,并对齿廓啮合过程进行了可视化仿真。结果表明,优化结果啮合状况良好,明显提高了计算精度与收敛速度。最后,通过大量实例分析,得到齿轮啮合过程中最容易发生干涉的转角,并采用变位修正法进行修正。为谐波齿轮加工与检验提供参考依据。

This paper focused on optimizing the harmonic drive. Aiming at the problem of the high complexity and low accuracy of calculation when the involute profile takes the place of the gear conjugate tooth profile, and in order to improve the accuracy and the convergence rate, this paper proposed the tooth crest interference inspection optimiza- tion algorithm to insure the gear teeth not only non-intervene but also transmit precisely. The minimum meshing clearance was established rapidly and accurately through the programming iterative calculation via graphical interface parametric design, and the meshing process was reproduced by the visual simulation. The simulation results show that the algorithm can obviously improve the accuracy and the convergence rate. Finally, through analyzing lots of cases, we identified the angle where the interference usually occurred, and used the deflection correction to correct the gear. The paper provides some references for gear machining and inspection.