某微型行星齿轮减速器动态特性分析

Dynamic Characteristics Analysis of a Miniature Planetary Gear Reducer

以某水平井取芯机器人爬行机构内的微型行星齿轮减速器为研究对象,设计小模数微型行星齿轮减速器各轮齿尺寸参数,通过Solidworks三维软件对微型行星轮系进行建模和装配。使用Workbentch对减速器模型做模态分析,得到模型的固有频率,并采用模态叠加法对模型进行谐响应分析,探讨外部激励对模型的影响。结果表明:在频率达到4阶时,减速器在xyz三个方向都有最大响应,而在频率达到5阶时,减速器在z方向达到了最大响应,而在xy方向有响应但不是最大响应。

The micro planetary gear reducer in the crawling mechanism of a horizontal core coring robot is taken as the research object. Design the gear size parameters of the small modulus micro planetary gear reducer. Modeling and assembling miniature planetary gear trains through Solidworks 3D software. The modal analysis of the reducer model is performed using Workbentch to obtain the natural frequency of the model. The modal superposition method is used to analyze the harmonic response of the model, and the influence of external excitation on the model is discussed. The results show that the speed reducer has the maximum response in all three directions of xyz when the frequency reaches the fourth order. When the frequency reaches the fifth order, the reducer reaches the maximum response in the z direction, and responds in the xy direction but not the maximum response.