• CN:11-2187/TH
  • ISSN:0577-6686

›› 1990, Vol. 26 ›› Issue (5): 52-56.

• 论文 • 上一篇    下一篇

残余压应力对齿轮接触应力和疲劳强度的影响

姜秉元;吴磊   

  1. 洛阳工学院
  • 发布日期:1990-09-01

THE EFFECT OF THE RETAINED COMPRESSION ON THE CONTACT STRESS AND FATIGUE STRENGTH OF GEARS

Jiang Bingyuan;Wu Lei   

  1. Luoyang Institute of Technology
  • Published:1990-09-01

摘要: 本文应用计算机研究了残余压应力对齿轮的接触应力及疲劳强度的影响关系,结果表明:残余压应力能显著降低表面拉应力和接触区深层的最大切应力,因此,它在改善齿轮的表面点蚀、磨损和深层肃落方面起重要作用。但是,它使次表层的τ max值增加。在这种情况下,疲劳过程将由此值τ max/HV确定。

关键词: 齿轮, 疲劳, 强度, 应力

Abstract: A study was made of the behaviour of retained compression stress to effect on contact stress and fatigue strength of gears with IBM-PC microcomputer by means of the contact fatigue test, measurement of retained stress and hardness. The results show that the retained compression stress can appreciably decrease stretching stress on the superficial surface and the greatest tangential stress (τmax) in the depth of the contact zone. So it takes important part in improving of superficial point corrosion and wearing and deep pealing of gear. But it increases theτmax beneath the surface. In this condition the fallguo process will be determined by the ratioτmax/ⅡV.

Key words: 齿轮, 疲劳, 强度, 应力