Effect of Roller Modification on Shear Stress of Cylindrical Roller Bearing under Flooded/Stared Oil Condition

Wenjie Wang; Ming Qiu; Yanfang Dong; Hui Du; Tuanliang Lu; Dawei Zhou

doi:10.16578/j.issn.1004.2539.2021.09.023

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Effect of Roller Modification on Shear Stress of Cylindrical Roller Bearing under Flooded/Stared Oil Condition

Development·Application | 更新时间：2022-11-10

- Effect of Roller Modification on Shear Stress of Cylindrical Roller Bearing under Flooded/Stared Oil Condition
- Journal of Mechanical Transmission Vol. 45, Issue 9, Pages: 151-155(2021)
- 作者机构：
  
  1.河南科技大学机电工程学院，河南洛阳 471003
  2.机械装备先进制造河南省协同创新中心，河南洛阳 471003
  3.中国航发哈尔滨轴承有限公司，黑龙江哈尔滨 150027
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2021.09.023
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王文杰,邱明,董艳方等.富/乏油下滚子修形对圆柱滚子轴承剪切应力的影响[J].机械传动,2021,45(09):151-155.

Wang Wenjie,Qiu Ming,Dong Yanfang,et al.Effect of Roller Modification on Shear Stress of Cylindrical Roller Bearing under Flooded/Stared Oil Condition[J].Journal of Mechanical Transmission,2021,45(09):151-155.
王文杰,邱明,董艳方等.富/乏油下滚子修形对圆柱滚子轴承剪切应力的影响[J].机械传动,2021,45(09):151-155. DOI： 10.16578/j.issn.1004.2539.2021.09.023.

Wang Wenjie,Qiu Ming,Dong Yanfang,et al.Effect of Roller Modification on Shear Stress of Cylindrical Roller Bearing under Flooded/Stared Oil Condition[J].Journal of Mechanical Transmission,2021,45(09):151-155. DOI： 10.16578/j.issn.1004.2539.2021.09.023.

摘要

以NJ2205圆柱滚子轴承为分析对象，通过Ansys软件对滚子进行建模，分析富油和乏油工况下滚子与滚道之间出现的“边缘效应”问题，对比分析未修形、全凸修形和对数修形下滚子与滚道剪切应力分布情况。结果表明，在径向载荷为11.45 kN、转速为4 000 r/min、富油工况下，沿滚子母线方向的剪切应力小于乏油，无修形方式时剪切应力最大，对数修形方式时剪切应力最小；在富油工况和乏油工况下，全凸修形时的剪切应力相比于未修形时分别减小了17.02%和10.58%；对数修形时的剪切应力相比于未修形时分别减小了32.95%和17%。因此，NJ2205圆柱滚子轴承的滚子采用对数修形曲线能有效地降低剪切应力。

Abstract

The NJ2205 cylindrical roller bearing is taken as the analysis object， and roller modeling is carried out through ANSYS software to analyze the "edge effect" problem between roller and raceway under the conditions of flooded oil and stared oil， and the shear stress distribution of roller and raceway is compared and analyzed under the conditions of unmodified， full convex modification and logarithmic modification. The results show that under the condition of radial load is 11.45 kN and speed is 4 000 r/min， the shear stress in the direction of the roller generatrix under flooded oil condition is less than that of stared oil condition， the shear stress in the non-repair mode is the largest， and the logarithmic repair mode. The shear stress is the smallest， and the fully convex repair under oil-rich and spent oil reduces by 17.02% and 10.58% respectively compared to the unrepaired shape， and the logarithmic repair reduces by 32.95% and 17% respectively compared to the unrepaired shape. Therefore， the roller of NJ2205 cylindrical roller bearing adopts log modification curve can effectively reduce the shear stress.

关键词

圆柱滚子轴承摩擦因数富油乏油滚子修形应力分布

Keywords

Cylindrical roller bearingFriction coefficientFlooded oilStared oilRoller modificationStress distribution

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