超声研磨齿轮振动系统的设计及实验

发布时间：2018-07-14 12:02

【摘要】：超声振动研齿法是优于传统研齿法的一种新的精加工技术,它能够提高材料的去除率,产生良好的齿面质量,降低齿轮副的噪声,其振动系统的设计是实现超声研齿工艺的关键技术之一。基于波传播理论建立了超声研齿振动系统的理论模型,分析了振动系统中变幅杆和螺旋锥齿轮组合体的动力学特性,通过实例分析得到了振动系统的谐振频率和振幅特性。并利用ANSYS进行模态分析与谐响应分析,最终通过阻抗分析与振动性能测试进行实验验证。研究结果表明:理论谐振频率、有限元分析频率、实验测试频率与设计频率相对比,求解偏差分别为0.05%、0.15%和1.42%,均不超过1.5%,而且在螺旋锥齿轮小端面产生的位移振幅非常近似,是可以满足工程应用需要的。这些研究结果可以为这种新的精加工方法的工业应用打下坚实的基础。
[Abstract]:Ultrasonic vibration tooth grinding is a new finishing technology which is superior to the traditional grinding method. It can improve the material removal rate, produce good tooth surface quality and reduce the noise of gear pair. The design of vibration system is one of the key technologies for ultrasonic tooth grinding. Based on the wave propagation theory, the theoretical model of ultrasonic tooth grinding vibration system is established, and the dynamic characteristics of the variable amplitude bar and spiral bevel gear combination in the vibration system are analyzed. The resonance frequency and amplitude characteristics of the vibration system are obtained by an example. The modal analysis and harmonic response analysis are carried out by ANSYS, and finally the experimental results are verified by impedance analysis and vibration performance test. The results show that the theoretical resonance frequency, the finite element analysis frequency, the experimental test frequency and the design frequency are 0.050.15% and 1.422% respectively, and the displacement amplitude on the small end of spiral bevel gear is very similar. It can meet the need of engineering application. These results can lay a solid foundation for the industrial application of this new finishing method.
【作者单位】：西北工业大学机电学院;机械装备先进制造河南省协同创新中心;河南科技大学机电学院;
【基金】：国家自然科学基金(51375144;51475141;51405135) 河南省高校科技创新人才计划(15HASTIT025)
【分类号】：TH132.41

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