ISO与AGMA锥齿轮强度计算标准比较

Comparison between ISO and AGMA Bevel Gear Strength Calculation Standard

分析和比较了国际标准化组织(ISO)与美国齿轮制造协会(AGMA)标准关于锥齿轮传动的强度计算方法的差异,采用分类比较和实例对比的方法分析了两种标准修正系数的含义和差异,以及齿轮参数变化对强度计算结果的影响。研究表明,齿轮参数和修正系数的取值不同是导致两标准计算结果差异的原因,其中载荷、几何参数材料特性与表面状况类因数为主要影响因数,AGMA标准的接触强度计算偏向保守,而ISO标准的弯曲强度计算偏向保守。

The difference of bevel gear strength rating methods between ISO standard and AGMA standard is analyzed and compared. The meaning of correction factors and differences between the two standards are analyzed through classifications and examples,and the gear parameters effects on gear rating results are also analyzed. The study indicates that it is the different values of parameters and correction factors that cause the differences in gear rating results of the two standards,and the load,geometry parameters,material property and surface condition have the most significant effects. The AGMA standard tends to be conservative in the calculation of contact strength,whereas ISO standard tends to be conservative in the calculation of bending strength.