圆弧齿线圆柱齿轮动态接触性能分析

发布时间：2019-01-09 19:04

【摘要】：齿轮动态接触性能将直接影响传动平稳性和承载能力。为了研究圆弧齿轮啮合过程中动态接触特性的时变规律,基于大刀盘铣削加工圆弧齿轮原理,借助MATLAB与UG建立精确的齿轮三维模型;借助ANSYS对圆弧齿轮副进行显式动力学分析,研究了点接触形式的圆弧齿轮的齿面接触应力分布情况;同时通过对齿轮副从静止到启动这一动态过程的模拟,探究了轮齿接触应力和啮合冲击的时变规律;最后,通过对不同齿宽系数的齿轮接触应力时变规律的研究,揭示了齿宽系数对圆弧齿轮的传动平稳性及承载能力的影响规律。实验结果表明,当齿宽系数在0.35~0.6范围内变化时,齿宽系数越大,齿轮的啮合冲击越大,而接触应力越小,为圆弧齿轮的设计及工程应用提供了理论依据。
[Abstract]:The dynamic contact performance of gear will directly affect the stability and bearing capacity of transmission. In order to study the time-varying law of dynamic contact characteristics of circular arc gear in meshing process, based on the principle of milling and machining circular arc gear with large cutter disc, an accurate three-dimensional model of gear is established by MATLAB and UG. Based on the explicit dynamic analysis of circular arc gear pair with ANSYS, the distribution of contact stress on the tooth surface of circular arc gear with point contact is studied. At the same time, by simulating the dynamic process of gear pair from static to starting, the time-varying law of gear tooth contact stress and meshing impact is studied. Finally, the influence of tooth width coefficient on the transmission stability and bearing capacity of circular arc gear is revealed by studying the time-varying contact stress of gear with different tooth width coefficients. The experimental results show that the larger the tooth width coefficient is, the greater the gear meshing impact is and the smaller the contact stress is, which provides a theoretical basis for the design and engineering application of circular arc gear.
【作者单位】：四川大学制造科学与工程学院;
【基金】：国家自然科学基金资助项目:新型圆弧曲线圆柱齿轮传动应用基础研究(51375320)
【分类号】：TH132.41

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