GBT3480-1997-渐开线圆柱齿轮承载能力计算方法.pdf

《GBT3480-1997-渐开线圆柱齿轮承载能力计算方法.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、21.200IJCS17暑目中华人民共和国国家标准cB/T3480一1997eqvISO6336-1一6336-3:1996渐开线圆柱齿轮承载能力计算方法Calculationmethodsofloadcapacityforinvolutecylindricalgears1997一12一30发布1998一07一01实施国家技刁险监督局发布GB/T3480一1997目次前言···············································································

2、······························⋯⋯1范围2引用标准··································································································⋯⋯3概述································.································································，·······一3.1可靠性与安全系数······

3、··，···············。···········································⋯⋯’····⋯⋯3.2主要代号····，·····················································.......................................3.3系数的分类和计算顺序4基本计算公式4.1齿面接触强度核算4.2轮齿弯曲强度核算5名义切向力F..........................................

4、.........................................................6修正载荷的系数和轮齿刚度96.1使用系数KN106.2动载系数K166.3齿向载荷分布系数KHo,KFP邪6,4齿间载荷分配系数KHa,KFo296.5轮齿刚度c,cr······················，·······························································⋯⋯317修正计算应力的系数3l7.1计算接触应力的系数··········

5、····························，，······································⋯⋯377.2计算弯曲应力的系数58轮齿疲劳强度及其修正系数58.1试验齿轮的疲劳极限‘r-=aFfm.....................................................···········⋯⋯568.2寿命系数ZNT,YNT688.3润滑油膜影响系数ZI,IZv,ZR7l8.4齿面工作硬化系数Zw728.5尺寸系数Z.,Y,738.6相对齿根圆角敏感系

6、数Y-1758.7相对齿根表面状况系数Y，二，T769轮齿静强度核算7691适用范围769.2载荷及其修正系数····························································⋯⋯‘二‘二“·‘·’‘二‘二‘二769.3静强度核算公式··················。····················································⋯⋯“’‘·’‘二’二78附录A(标准的附录)最小安全系数参考值···················

7、··，··································，···⋯⋯78附录B(提示的附录)在变动载荷下工作的齿轮强度核算·········································⋯⋯80附录c(提示的附录)轮缘系数YHIGB/T3480一1997前台本标准等效采用国际标准ISO6336-1^-6336-3:1996((渐开线)圆柱直齿轮和斜齿轮承载能力计算》，用以代替1983年发布的国家标准GB3480-83.和GB3480-83相比，本标准主要在下列几个方面作了修改:a)强调弯曲强

8、度的重要性并在附录A给出了较大的最小弯曲强度安全系数参考值，同时对最小接触强度安全系数给出了参考的取值范围，并在附录B给出了在变动载荷下工作的齿轮强度核算方法，在附录C中给出了薄轮缘齿轮弯曲应力计算的参考方法;b)齿向载荷分布系数K.,Key仍采用ISO方法，但对个别系数经分