基于ABAQUS的大模数轮齿硬化层表面接触疲劳强度分析

CONTACT FATIGUE STRENGTH ANALYSIS OF GEAR HARDENING LAYER SURFACE BASED ON ABAQUS

渗碳淬火硬化层在提高大模数轮齿表面硬度与耐磨性,延长其使用寿命方面具有重要作用。主要研究轮齿接触面硬化层深度的设计问题,分析了有效渗碳硬化层对轮齿接触疲劳强度的影响;确定了大模数齿轮最佳有效硬化层深度,并且利用在Abaqus中将轮齿啮合齿面有效硬化层分离的方法,计算出接触面处的应力分布状况,得出最佳的有效硬化层深度。方法为大模数轮齿渗碳淬火硬化层设计提供了一种理论参考。

Carburizing and quenching of hardened layer can be used to increase the surface hardness and wear-resisting degree of large-modulus gear, and directly affect its service life and safety. This article studies the designing problems of the hardened layer＇s thickness in the gears＇ contact areas, and gives an analysis on the influence that the effective deep commendation hardening layer could have on the gears. By determining the large-modulus gear effective hardened layer depth and separating tooth surface effective hardened layer in Abaqus, the stress distribution in the contact area is calculated. Then the best effective hardening layer depth is concluded. The experiment results show that this method is effective to determine the largemodulus carburizing quench hardened layer provides a reliable theoretical reference.