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1、21.200IJCS17暑目中華人民共和國國家標準cB/T3480一1997eqvISO6336-1一6336-3:1996漸開線圓柱齒輪承載能力計算方法Calculationmethodsofloadcapacityforinvolutecylindricalgears1997一12一30發(fā)布1998一07一01實施國家技刁險監(jiān)督局發(fā)布GB/T3480一1997目次前言·················································································
2、····························??1范圍2引用標準··································································································??3概述································.································································，·······一3.1可靠性與安全系數(shù)········，·
3、··············?！ぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁ??’····??3.2主要代號····，·····················································.......................................3.3系數(shù)的分類和計算順序4基本計算公式4.1齒面接觸強度核算4.2輪齒彎曲強度核算5名義切向力F................................................
4、...................................................6修正載荷的系數(shù)和輪齒剛度96.1使用系數(shù)KN106.2動載系數(shù)K166.3齒向載荷分布系數(shù)KHo,KFP邪6,4齒間載荷分配系數(shù)KHa,KFo296.5輪齒剛度c,cr······················，·······························································??317修正計算應(yīng)力的系數(shù)3l7.1計算接觸應(yīng)力的系數(shù)··················
5、····················，，······································??377.2計算彎曲應(yīng)力的系數(shù)58輪齒疲勞強度及其修正系數(shù)58.1試驗齒輪的疲勞極限‘r-=aFfm.....................................................···········??568.2壽命系數(shù)ZNT,YNT688.3潤滑油膜影響系數(shù)ZI,IZv,ZR7l8.4齒面工作硬化系數(shù)Zw728.5尺寸系數(shù)Z.,Y,738.6相對齒根圓角敏感系數(shù)Y-1758.7相
6、對齒根表面狀況系數(shù)Y，二，T769輪齒靜強度核算7691適用范圍769.2載荷及其修正系數(shù)····························································??‘二‘二“·‘·’‘二‘二‘二769.3靜強度核算公式··················?！ぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁぁ??“’‘·’‘二’二78附錄A(標準的附錄)最小安全系數(shù)參考值·····················，·········
7、·························，···??78附錄B(提示的附錄)在變動載荷下工作的齒輪強度核算·········································??80附錄c(提示的附錄)輪緣系數(shù)YHIGB/T3480一1997前臺本標準等效采用國際標準ISO6336-1^-6336-3:1996((漸開線)圓柱直齒輪和斜齒輪承載能力計算》，用以代替1983年發(fā)布的國家標準GB3480-83.和GB3480-83相比，本標準主要在下列幾個方面作了修改:a)強調(diào)彎曲強度的重要性并在附錄A給出了較
8、大的最小彎曲強度安全系數(shù)參考值，同時對最小接觸強度安全系數(shù)給出了參考的取值范圍，并在附錄B給出了在變動載荷下工作的齒輪強度核算方法，在附錄C中給出了薄輪緣齒輪彎曲應(yīng)力計算的參考方法;b)齒向載荷分布系數(shù)K.,Key仍采用ISO方法，但對個別系數(shù)經(jīng)分
