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在轮齿弯曲疲劳强度计算及试验研究中,由于对计算公式及各种符号的物理意义认识不透,很可能使计算及试验结果出现错误。由于对分度圆压力角和载荷作用处的端面压力角在计算公式中所起的作用的概念不清,将齿预处压力角代替了分度圆压力角进行齿轮轮齿弯曲强度计算,他得试验结果出现一定的错误。为了正确地执行国标GB3480-83,有必要搞清以上有关压力角的问题。 GB3480-83中有弯曲疲劳计算公式,其中F_t为端面内分度圆上的名义切向力,它是作用于端面内并切于分度圆,且由齿轮副传递的名义功率确定。具体到齿轮轮齿弯曲
In calculating and testing the fatigue strength of gear teeth, knowing the calculation formula and the physical meaning of various symbols is very imperfect, it is possible that the calculation and test results will be wrong. Because of the concept of the role played by the pressure angle of the index circle and the pressure angle of the end face in the calculation formula is unclear, the tooth pre-stress pressure angle is substituted for the pressure angle of the index circle to calculate the gear tooth flexural strength. There are some mistakes in the test results. In order to correctly implement the national standard GB3480-83, it is necessary to clarify the above issues related to the pressure angle. GB3480-83 in the bending fatigue calculation formula, where F_t is the nominal tangential force on the end surface of the indexing circle, it is acting on the end face and cut in the indexing circle, and the nominal power transmitted by the gear set. Specific to the gear tooth bending