考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模研究

陈小琦; 唐成; 廖祥贵; 周伟华; 唐进元

doi:10.16578/j.issn.1004.2539.2023.08.002

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考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模研究

理论研究 | 更新时间：2023-08-22

- 考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模研究
- Study on Tooth Surface Roughness Modeling of Form Grinding Considering the Change of the Local Grinding Condition
- 机械传动 2023年47卷第8期页码：9-15
- 作者机构：
  
  1.中国航发中传机械有限公司，湖南长沙 410200
  2.中南大学高性能复杂制造国家重点实验室，湖南长沙 410083
- 作者简介：
  
  陈小琦（1983— ），女，安徽砀山人，硕士，工程师；主要研究方向为齿轮加工制造；zncd0906@126.com。
- 基金信息：
  
  国家自然科学基金项目(U22B2086)
- DOI：10.16578/j.issn.1004.2539.2023.08.002
  中图分类号：
- 纸质出版日期：2023-08-15，
  
  收稿日期：2023-03-07，
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陈小琦,唐成,廖祥贵等.考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模研究[J].机械传动,2023,47(08):9-15.

Chen Xiaoqi,Tang Cheng,Liao Xianggui,et al.Study on Tooth Surface Roughness Modeling of Form Grinding Considering the Change of the Local Grinding Condition[J].Journal of Mechanical Transmission,2023,47(08):9-15.
陈小琦,唐成,廖祥贵等.考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模研究[J].机械传动,2023,47(08):9-15. DOI： 10.16578/j.issn.1004.2539.2023.08.002.

Chen Xiaoqi,Tang Cheng,Liao Xianggui,et al.Study on Tooth Surface Roughness Modeling of Form Grinding Considering the Change of the Local Grinding Condition[J].Journal of Mechanical Transmission,2023,47(08):9-15. DOI： 10.16578/j.issn.1004.2539.2023.08.002.

摘要

齿轮磨削表面粗糙度的建模研究是认识齿轮完整性的重要基础。由于砂轮-工件的宏观复杂形状，以及齿轮磨削过程中局部磨削条件存在差异，限制了经典平面磨削粗糙度建模方法向齿轮磨削的直接迁移。为此，提出考虑局部磨削条件变化的齿轮成形磨削表面粗糙度建模方法。根据成形磨齿的磨削机制，分析磨齿砂轮与齿轮工件的运动关系，推导得到宏观几何形状影响下不同局部位置的磨粒运动轨迹方程，建立了考虑砂轮复杂形状的磨粒随机分布特性的砂轮模型；基于磨削表面粗糙度的创成机制，通过迭代算法得到成形磨齿表面粗糙度；进行了12Cr2Ni4A齿轮材料渗碳淬火后的成形磨削实验研究。结果表明，所提出的成形磨齿表面粗糙度预测模型与实验结果具有较好的一致性，模型可以很好地反映局部磨削条件差异下齿面粗糙度沿齿廓方向的分布。本文研究对成形磨齿表面粗糙度创成机制提出了一个新的认识，为后续研究提供了更多的参考与基础。

Abstract

Modeling gear grinding surface roughness is an essential basis for understanding gear integrity. Due to the complex macro shape of the grinding wheel and workpiece and the difference in local grinding conditions during gear grinding

the direct transfer of the classical surface grinding roughness modeling method is limited. Therefore

this study proposes a method for modeling the surface roughness of gear form grinding

considering the variation of local grinding strips. According to the grinding mechanism of form grinding

the grinding motion relationship between the grinding wheel and the gear is analyzed. The motion trajectory equation of abrasive particles at different local positions under the influence of macro geometric shapes is derived. A grinding wheel model considering the random distribution characteristics of abrasive particles in the complex shape of grinding wheel is established. Based on the generation mechanism of grinding surface roughness

the surface roughness of formed grinding teeth is obtained by an iterative algorithm. The forming grinding test of 12Cr2Ni4A gear material after carburizing and quenching is carried out. The results show that the prediction model of the surface roughness of formed grinding teeth presented in this study agrees with the experimental results. The model can well reflect the surface roughness distribution along the tooth profile under the local grinding strip difference. The work of this study puts forward a new understanding of the formation mechanism of the surface roughness of the formed grinding teeth and provides more reference and basis for the follow-up research.

关键词

表面粗糙度齿轮成形磨削齿轮钢

Keywords

Surface roughnessGearForm grindingGear steel

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