渗碳齿轮硬化层深度设计方法

Design method of hardened depth for carburized gear

基于接触强度计算方法,计算出了齿轮沿齿面深度方向的剪切应力分布,通过剪切应力与剪切强度的关系,得到了渗碳齿轮最低要求的硬度分布曲线,在此基础上,设计出了齿轮硬化层硬度分布,得到有效硬化层深度。

Based on the calculating method of contact strength , the shear stress distribution along the depth direction of gear surface was calculated, from the relationship of shear stress and shear strength , the lowest hardness distribution curve for carburized gear was obtained . Based on the lowest hardness distribution curve , the hardness distribution for carburized gears was designed , and the available hardened depth of carburized gears was obtained .