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为了确定表面渗碳齿轮的齿面工作寿命,要求最佳设计条件以防止疲劳剥落的发生,本文提出了一种分析模型,该模型揭示了由传动载荷所产生的齿面表层剪应力与齿轮材料强度之间的相互关系,从而弄清了对于齿轮所要求的齿面工作寿命存在着一个最佳渗碳深度,并得知发生疲劳剥落的初始裂纹深度正好与齿面表层剪应力超过材料剪切强度处的深度相吻合。讨论了齿轮的最佳渗碳分析模型对于防止齿面疲劳剥劳的意义和实质。
In order to determine the working life of the surface carburized gear tooth surface and require the best design conditions to prevent the occurrence of fatigue spalling, this paper presents an analysis model, which reveals the transmission load generated by tooth surface shear stress and gear materials So as to find out that there is an optimal carburizing depth for the required service life of the tooth flanks and that the initial crack depth at which fatigue spalling occurs coincides with the fact that the surface shear stress of the tooth flank surpasses that of the material Intensity at the depth of coincide. The significance and essence of the best carburizing analysis model of gear to prevent the fatigue of tooth flaking are discussed.