偏心误差影响下的斜齿轮摩擦激励计算方法

发布时间：2018-01-14 16:25

本文关键词：偏心误差影响下的斜齿轮摩擦激励计算方法　出处：《浙江大学学报(工学版)》2017年08期 　论文类型：期刊论文

【摘要】：为了研究含偏心误差的斜齿轮副摩擦激励计算方法,建立单级含偏心误差斜齿轮副几何模型,推导斜齿轮副的动态啮合角、瞬态节圆半径以及瞬态传动比的计算公式.将单对齿接触线的长度变化过程以分段函数的形式表示,进而叠加求得参与啮合的各齿对接触线总长度,将各条接触线以节线为界分为2段,计算齿轮副齿面摩擦力及摩擦力矩,与未考虑偏心误差时斜齿轮副接触线长度、摩擦力及摩擦力矩进行对比分析.结果表明:当考虑偏心误差后,接触线长度、摩擦力及摩擦力矩都变得更加复杂,频域曲线在啮合频率处出现峰值,在输入及输出轴转频处出现峰值,在啮合频率两侧出现许多转频的边频,影响了传动系统的稳定性.
[Abstract]:In order to study the calculation method of friction excitation of helical gear pair with eccentricity error, the geometric model of single-stage helical gear pair with eccentricity error is established, and the dynamic meshing angle of helical gear pair is deduced. The length variation process of contact line of single pair teeth is expressed as a piecewise function, and then the total length of each tooth pair contact line participating in meshing is obtained by superposition. The contact line is divided into two sections, the friction force and the friction moment of gear pair tooth surface are calculated, and the contact line length of helical gear pair is calculated when the eccentricity error is not considered. The results show that the length of contact line, friction force and friction moment become more complex when the eccentric error is taken into account, and the peak value of frequency domain curve appears at the meshing frequency. The peak value of the input and output axes and the side frequency of the meshing frequency affect the stability of the transmission system.
【作者单位】：重庆大学机械传动国家重点实验室;
【分类号】：TH132.41
【正文快照】： 齿轮传动广泛应用于工业生产的各个领域,齿面摩擦激励是齿轮啮合内部激励的重要影响因素,不仅会加速齿轮的磨损、点蚀和裂纹的萌生[1],还会影响传动系统的动态特性.接触线长度是影响摩擦激励的主要因素,对于齿轮尤其是对于斜齿轮而言,接触线长度变化是一个非常重要的内部激励

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