HB与ISO标准中锥齿轮轮齿弯曲疲劳强度计算标准比较  

Comparison of Calculation Standards for Bending Fatigue Strength of Bevel Gear Teeth in HB and ISO Standards

作　　者：滕文爽 郭梅 宋振海 庞顺清 李锦花 TENG Wen-shuang;GUO Mei;SONG Zhen-hai;PANG Shun-qing;LI Jin-hua(AECC Shenyang Engine Research Institute,Shenyang 110015,China;AECC Key Laboratory of Power Transmission Technology on Aeroengine,Shenyang 110015,China;AECC Shenyang Liming Aero-engine Co.,Ltd,Shenyang 110043,China)

机构地区：[1]中国航发沈阳发动机研究所 [2]中国航空发动机集团航空发动机动力传输重点实验室,沈阳110015 [3]中国航发沈阳黎明航空发动机有限责任公司,沈阳110043

出　　处：《航空发动机》2022年第3期65-69,共5页Aeroengine

基　　金：国家科技重大专项(2017-IV-0012-0049)资助。

摘　　要：为正确评估不同标准中的轮齿强度计算结果,分析和比较了航空工业标准(HB)与国际标准化组织(ISO)标准计算锥齿轮轮齿弯曲疲劳承载能力。通过计算方法比较和实例计算对比2种途径,找出了2种标准计算公式的差异、修正系数种类和取值上的差异,及其对计算结果的影响。结果表明:2种标准考虑的影响因素不同,ISO标准相较HB考虑的因素更为全面,特别是在动载系数、应力修正、尺寸系数等参数计算上存在较大差异,使得采用ISO标准计算齿根应力基本值更小,齿根应力与许用齿根应力更大;ISO标准中提供的动载系数根据转速区域的不同采用的计算公式不同,提供的尺寸系数考虑了不同组织和热处理工艺对系数取值的影响,对计算结果更有指导意义。In order to correctly evaluate the gear tooth strength calculation results in different standards,the bending fatigue bearing capacity of bevel gear teeth calculated by Aviation Industry standard(HB)and International Standardization Oganization(ISO)standards were analyzed and compared.Through the comparison of calculation methods and example calculation,the differences between the two standard calculation formulas,the types and values of correction coefficients,and their effects on the calculation results were found out.The results show that the influence factors considered by the two standards are different.The ISO standard is more comprehensive than HB,es⁃pecially in the calculation of dynamic load coefficient,stress correction,size coefficient and other parameters,which makes the basic value of tooth root stress calculated by ISO standard smaller,and the tooth root stress and allowable root stress larger.The dynamic load coeffi⁃cient provided in ISO standard adopts different calculation formulas according to different speed regions.The size coefficient provided takes into account the influences of different structures and heat treatment processes on the coefficient value,which is more instructive to the calculation results.

关 键 词：锥齿轮 轮齿 齿根应力 强度计算 弯曲疲劳 航空工业标准 国际标准化组织标准 

分 类 号：V233.1[航空宇航科学与技术—航空宇航推进理论与工程]