• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (21): 183-190.doi: 10.3901/JME.2018.21.183

• 制造工艺与装备 • 上一篇    下一篇

螺旋伞齿轮磨削残余应力分布规律及仿真分析

梁志强1, 黄迪青1, 周天丰1, 李宏伟1,2, 刘心藜2, 王西彬1   

  1. 1. 北京理工大学先进加工技术国防重点学科实验室 北京 100081;
    2. 北京北方车辆集团有限公司 北京 100072
  • 收稿日期:2017-11-11 修回日期:2018-06-01 出版日期:2018-11-05 发布日期:2018-11-05
  • 通讯作者: 周天丰(通信作者),男,1981年出生,博士,教授,博士研究生导师。主要研究方向为精密与超精密加工、玻璃微细结构成形技术。E-mail:zhoutf@bit.edu.cn
  • 作者简介:梁志强,男,1984年出生,博士,副教授,博士研究生导师。主要研究方向为难加工材料切削磨削、微细切削、微细刀具设计与制造。E-mail:liangzhiqiang@bit.edu.cn;黄迪青,男,1993年出生,硕士研究生。主要研究方向为螺旋伞齿轮磨削加工技术。E-mail:huangdiqingbit@outlook.com;王西彬,男,1958年出生,博士,教授,博士研究生导师。主要研究方向为先进切削磨削、精密微小型制造、绿色制造、生物加工与成形等。E-mail:cutting0@bit.edu.cn
  • 基金资助:
    基础科研(A0920132008,JCKY2017208C005)和国家重点基础研究计划(973计划,2015CB059900)资助项目。

Distribution Characteristic and Simulation Analysis on Grinding Residual Stress of Spiral Bevel Gears

LIANG Zhiqiang1, HUANG Diqing1, ZHOU Tianfeng1, LI Hongwei1,2, LIU Xinli2, WANG Xibin1   

  1. 1. Key Laboratory of Fundamental Science for Advanced Machining, Beijing Institute of Technology, Beijing 100081;
    2. Beijing North Vehicle Group Corporation, Beijing 100072
  • Received:2017-11-11 Revised:2018-06-01 Online:2018-11-05 Published:2018-11-05

摘要: 螺旋伞齿轮作为重型车辆传动系统的关键零部件,其表面完整性对整车机动性和可靠性起着关键作用。磨削作为齿轮最后一步加工工序,磨削过程产生的残余应力将直接影响齿轮疲劳性能。若残余应力控制不当,将导致齿轮在使用过程中过早发生疲劳失效,产生齿面疲劳点蚀和根部疲劳断裂等问题。针对重型车辆螺旋伞齿轮设计磨削试验,研究不同磨削参数下螺旋伞齿轮残余应力的分布规律;结合磨削前后齿轮残余应力的状态,获得实际磨削过程残余应力;基于力热耦合有限元仿真法计算螺旋伞齿轮磨削残余应力。研究结果表明:齿轮凸面平行磨削方向残余压应力最小,磨削过程使齿面产生拉应力而亚表层产生压应力,力热耦合有限元仿真法能有效用于螺旋伞齿轮磨削残余应力的预测和分析。

关键词: 残余应力, 力热耦合, 螺旋伞齿轮, 磨削, 有限元仿真

Abstract: The spiral bevel gear is the key part of the transmission component of the heavy duty vehicles. Its surface integrity plays a key role in the maneuverability and reliability. As the last step of gear machining, grinding residual stress is one of the important factor of surface integrity. It leads to the early fatigue failure if the residual stress doesn't meet the requirements. The distribute characteristic of the gear's residual stress in different grinding parameters are investigated by grinding experiments. The effective residual stress caused by grinding is calculated according to the residual stress of the original gear. It also is calculated by the finite element method basing on thermo-mechanical coupling. The results show that, the residual stress of gear convexity parallel to the grinding direction is the smallest; the residual tensile stress is generated by the grinding process in the gear surface, while in the gear subsurface residual compressive stress is produced. The values of residual stress calculated by the finite element model are accordant with those calculated by the experiment, which shows that it is promising to analyse and predict the residual stress of spiral bevel gear by finite element method.

Key words: finite element analysis, grinding, residual stress, spiral bevel gear, thermo-mechanical coupling

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