对平稳工况下ZFYO型天井钻机主机减速器进行瞬态动力学分析,发现在正常工况下,齿轮轴与齿轮啮合过程中两轮承载不均匀。找出承受应力较大的齿轮,得到减速器在典型工况下的危险点的应力时间历程,结合材料的S-N曲线以及疲劳损伤累积准则,进行疲劳损伤分析,并采取相应的措施,减小天井钻机减速器磨损,提高天井钻机减速器的寿命。 The transient dynamic analysis of the main reducer of the ZFYO-type well drilling rig under steady conditions shows that under normal conditions, the two-wheel bearing is not evenly distributed during the meshing process of the gear shaft and the gear. Find out the gear with large stress, get the stress time history of the reducer under the dangerous point under the typical working conditions, combine the SN curve of the material and the accumulated criterion of fatigue damage, carry out the fatigue damage analysis and take corresponding measures to reduce the size of the well Rig reducer wear, improve the life of the boring machine reducer.