During the manufacturing of the planet carrier, the pinhole and bushing will contain eccentric errors, which will cause misalignment of the pin and unwanted system dynamic response. The phase of the eccentricity error and the form of misalignment can be adjusted by changing the assembly angle of the bushing. Appropriate misalignment can improve the system’s dynamic performance. Based on the transmission principle of involute teeth, the meshing model of helical gear with misalignment is derived, where the shape of the meshing surface, the distribution of the contact line and the variable backlash along the axis under the influence of misalignment are considered. A dynamic model of herringbone star gear train (HSGT) considering different types of shaft misalignment is proposed. The validity of the model is ensured through comparison of theoretical and experimental results. Based on the influence mechanism of star gear’s position error and parallelism error on dynamic characteristics, misalignment parameters that are beneficial to vibration response and load-sharing performance are found. Therefore, this study is meaningful to guide the assembly of pin bushings and the matching of misalignment errors in HSGT.

中文翻译：

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考虑销不对中和误差相位组合的人字星齿轮系统动力学建模与分析


在行星架的制造过程中，针孔和衬套会包含偏心误差，这将导致销不对中和不需要的系统动态响应。偏心率误差的相位和不对中的形式可以通过改变衬套的装配角度来调整。适当的错位可以提高系统的动态性能。基于渐开线齿的传动原理，推导了带不对中斜齿轮的啮合模型，其中考虑了啮合面的形状、接触线的分布以及在不对中影响下沿轴线的可变齿隙。该文提出一种考虑不同类型轴不对中的人字形星形齿轮系 （HSGT） 动力学模型。通过理论和实验结果的比较，确保了模型的有效性。基于星形齿轮位置误差和平行度误差对动力学特性的影响机制，找到了有利于振动响应和载荷均分性能的不对中参数。因此，本研究对指导销衬套的组装和 HSGT 中对中不对中误差的匹配具有重要意义。