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论文:2019,Vol:37,Issue(4):774-784 |
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引用本文： |
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余永健, 陈国定, 李济顺, 薛玉君. 滚子几何误差对圆柱滚子轴承旋转精度的影响[J]. 西北工业大学学报 |
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YU Yongjian, CHEN Guoding, LI Jishun, XUE Yujun. Influence of Geometric Error of Rollers on Rotational Accuracy of Cylindrical Roller Bearings[J]. Northwestern polytechnical university |
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| 滚子几何误差对圆柱滚子轴承旋转精度的影响 |
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| 余永健1, 陈国定1, 李济顺2, 薛玉君2,3 |
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1. 西北工业大学 机电学院, 陕西 西安 710072;
2. 河南科技大学 河南省机械设计及传动系统重点实验室, 河南 洛阳 471003;
3. 洛阳LYC轴承有限公司 航空精密轴承国家重点实验室, 河南 洛阳 471003 |
| 摘要: |
| 由于轴承的回转运动是轴承内圈、外圈和多个滚动体等零件在几何约束下实现的，轴承回转误差也应当是轴承零件几何误差共同作用的结果。因此，研究轴承零件几何误差与轴承回转误差的关系对轴承精度设计和预测有重要意义。为此，考虑内圈滚道、外圈滚道和滚子表面几何误差，提出了圆柱滚子轴承旋转精度数值模型，并通过试验验证了该数值模型的正确性。分析了具有不同几何误差滚子的排布方式、滚子表面圆度误差与滚子个数的耦合效应对轴承内圈跳动量的影响。分析结果表明，具有不同几何误差滚子的排布方式对轴承旋转精度影响显著，将滚子按照尺寸误差大小交替排布，能显著提高轴承旋转精度；滚子表面偶数阶圆度误差对轴承旋转精度有显著影响，且其影响程度取决于滚子表面圆度误差阶次与滚子个数的关系，而滚子表面奇数阶圆度误差对轴承旋转精度的影响几乎可以忽略；滚子表面圆度误差阶次越高，滚子个数对轴承旋转精度影响越大；增加滚子个数并不总使轴承旋转精度提高。 |
| 关键词:
圆柱滚子轴承
旋转精度
几何误差
圆度误差
滚子个数
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| Influence of Geometric Error of Rollers on Rotational Accuracy of Cylindrical Roller Bearings |
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| YU Yongjian1, CHEN Guoding1, LI Jishun2, XUE Yujun2,3 |
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1. School of Mechatronics and Engineering, Northwestern Polytechnical University, Xi'an 710072, China;
2. Henan Key Laboratory for Machinery Design and Transmission System, Henan University of Science and Technology, Luoyang 471003, China;
3. State Key Laboratory of Aviation Precision Bearings, Luoyang LYC Bearings Co., Ltd., Luoyang 471003, China |
| Abstract: |
| As the rotation of roller bearings is carried out under geometrical constraint of the inner ring, outer ring and multiple rollers, the motion error of the bearing should also be resulted from geometric errors of bearing parts. Therefore, it is crucial to establish the relationship between geometric errors of bearing components and motion error of assembled bearing, which contributes to improve rotational accuracy of assembled bearing in the design and machining of the bearing. For this purpose, considering roundness error and dimension error of the inner raceway, the outer raceway and rollers, a prediction method for rotational accuracy of cylindrical roller bearings is proposed, and the correctness of the proposed prediction method is verified by experimental results. The influences of roller's geometric error distribution, roller's roundness error and the number of rollers on the runout value of inner ring are investigated. The results show that, the roller arrangement with different geometric errors has a significant impact on rotational accuracy of cylindrical roller bearings. The rotational accuracy could be improved remarkably when multiple rollers with different dimension error are distributed alternately according to the size error. Even-order roundness error of rollers has a significant effect on the rotational accuracy, and the decrease level depends on the orders of roundness errors of bearing parts and the number of rollers. But odd-order roundness error of rollers has almost no effect on the rotational accuracy. The rotational accuracy of assembled bearing would be significantly improved or decreased when even order harmonic of rollers and the number of rollers satisfy specific relationships. The greater the order of roundness error of the rollers, the more severe the influence of the roller number on rotational accuracy of assembled bearing. The rotational accuracy can not be always improved with the increase of the number of rollers. |
| Key words:
cylindrical roller bearing
rotational accuracy
geometric error
roundness error
roller number
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| 收稿日期: 2018-06-10
修回日期:
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| DOI: 10.1051/jnwpu/20193740774 |
| 基金项目: 国家自然科学基金（51375148）、河南省高等学校重点科研项目（15A460022）与河南省高校科技创新团队支持计划（15IRTSTHN008）资助 |
| 通讯作者:
Email： |
| 作者简介: 余永健(1979-),西北工业大学博士研究生,主要从事滚动轴承性能分析及理论研究。
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