Journal of South China University of Technology (Natural Science Edition) ›› 2014, Vol. 42 ›› Issue (12): 77-83.doi: 10.3969/j.issn.1000-565X.2014.12.012

• Mechanical Engineering • Previous Articles     Next Articles

Misalignment Identification of Spiral Bevel Gears Based on Contact Pattern Shift

Cai Xiang-wei1 Fang Zong-de1 Su Jin-zhan2   

  1. 1.School of Mechanical Engineering,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China;2.Key Laboratory of Road Construction Technology and Equipment of the Ministry of Education,Xi'an 710072,Shaanxi,china
  • Received:2014-03-24 Revised:2014-09-01 Online:2014-12-25 Published:2014-11-17
  • Contact: 方宗德(1948-)，男，教授，博士生导师，主要从事曲齿锥齿轮先进设计与检测研究． E-mail:fauto@nwpu.edu.cn
  • About author:蔡香伟(1987-)，男，博士生，主要从事机械设计与机械传动研究．E-mail:caixiangwei@163．com
  • Supported by:

    国家自然科学基金资助项目(51175423，51205310，51375384)

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Abstract:

In order to calculate the misalignment of spiral bevel gears in the working conditions,the relationshipamong different groups of misalignment which lead to the same contact pattern is analyzed.It is found that thesegroups of misalignment are equivalent,and the misalignment identification can be solved by getting only one equi-valent solution without exact calculation.Then,the digital features of contact pattern are extracted,and the equiva-lent misalignment is obtained using an optimal method by means of minimizing the sum of two contact path devia-tions as the objective function.Finally,the precision of the identification algorithm and the effectiveness of theequivalent misalignment are verified by taking a couple of spiral bevel gears as an example.

Key words: spiral bevel gear, contact pattern shift, misalignment, multiple solution, equiralent