Journal of South China University of Technology (Natural Science Edition) ›› 2016, Vol. 44 ›› Issue (11): 84-89.doi: 10.3969/j.issn.1000-565X.2016.11.013

• Mechanical Engineering • Previous Articles     Next Articles

Optimization and Validation of Hypoid Pinion Roughing Summary Based on Tilted Method

SU Jin-zhan1,2 GUO Xiao-dong2 LIU Yong-sheng1 ZHANG Wei-qing2   

  1. 1.Key Laboratory of Road Construction Technology and Equipment of the Ministry of Education,Chang'an University,Xi'an 710064,Shaanxi,China; 2.Key Laboratory of Advanced Manufacture Technology for Automobile Parts of the Ministry of Education,Chongqing University of Technology,Chongqing 400054,China
  • Received:2016-01-18 Revised:2016-05-04 Online:2016-11-25 Published:2016-10-04
  • Contact: 苏进展( 1982-) ，男，博士，副教授，主要从事齿轮传动技术研究． E-mail:sujinzhan@chd.edu.cn
  • About author:苏进展( 1982-) ，男，博士，副教授，主要从事齿轮传动技术研究．
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51205310) and the Natural Science Basic ResearchPlan in Shaanxi Province of China( 2015JQ5162)

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Abstract:

In order to improve the uniformity of finishing allowance of hypoid pinion cutting by tilted method,an optimization method of roughing summary of the pinion is proposed.In this method,on the basis of known pinion finishing summary,the location of both tooth flanks can be determined according to the pinion tooth size at the middle of gear blank face width.Then,by presetting the initial roughing summary and finishing allowance of the pinion,the finishing allowance of ten control points in both tooth surfaces is achieved.Finally,a genetic algorithm is adopted to conduct an optimization,with the minimum sum of the squares of the difference between the preset finishing allowance and the finishing allowance as the objection function and with the roughing summary of the pinion as the variables.Numerical examples show that,as compared with the Gleason's method,the proposed method decreases the maximum deviations of the finishing allowance on concave and convex by 0.015 and 0.123mm as well as the corresponding root mean squares by 9.52% and 7.98%,respectively.In addition,the measured normal chordal thickness at the toe,middle and heel of a tested pinion decrease respectively by 0.11,0.06 and 0.12mm.The above results demonstrate that the uniformity of the finishing allowance is improved greatly.

Key words: gear cutting, hypoid gears, roughing summary, finishing allowance, tooth surface orientation