刘赣华,钱锦年,邹洋,刘付洋

• 1:江西理工大学机电工程学院

摘要(Abstract)：

使用流体动力学软件CFX求解淬火槽内淬火冷却介质流场分布,提出了考虑介质流速影响下弧齿锥齿轮不同表面换热系数的表征方法。建立基于多场耦合软件DEFORM-HT的扩散与相变模型,采用数值分析方法反馈介质流速对弧齿锥齿轮冷却特性的影响,给出了齿面、内/外圈和齿轮底面在不同介质流速下温度、马氏体体积分数、硬度及应力的演化规律。结果表明:介质入口流速越快,齿面冷却速率、马氏体体积分数及硬度越高;介质入口流速为1.5 m/s时,内/外圈冷却速率、马氏体体积分数及硬度达到极大值;介质入口流速为2.0 m/s时,齿轮底面冷却速率、马氏体体积分数及硬度达到极大值;介质入口流速对应力状态影响较小,流速越快的部位应力变化幅度及残余应力越大。

关键词(KeyWords)： 弧齿锥齿轮;渗碳淬火;换热系数;介质流速

Abstract:

Keywords:

基金项目(Foundation): 江西省教育厅科学研究项目(GJJ160613)

作者(Author): 刘赣华,钱锦年,邹洋,刘付洋

DOI: 10.13289/j.issn.1009-6264.2017-0423

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