风电增速箱圆锥滚子轴承弹流脂润滑状态研究*

doi:10.16731/j.cnki.1671-3133.2025.04.013

现代制造工程 ›› 2025, Vol. 535 ›› Issue (4): 109-115.doi: 10.16731/j.cnki.1671-3133.2025.04.013

风电增速箱圆锥滚子轴承弹流脂润滑状态研究^*

陈龙^1,2, 李伦^1,2, 薛玉君^1,2, 李玉川^3,4, 黄伟^3,4

1 河南科技大学机电工程学院,洛阳 471003;
2 河南省机械设计及传动系统重点实验室,洛阳 471003;
3 洛阳轴承集团股份有限公司,洛阳 471039;
4 航空精密轴承国家重点实验室,洛阳 471039

收稿日期:2024-08-10 出版日期:2025-04-18 发布日期:2025-05-08
通讯作者: 李伦,博士,教授级高工,博士生导师,主要研究方向为轴承设计与性能分析、虚拟设计与数字化仿真、硬脆材料特种加工技术。E-mail:chenlong20220228@163.com
作者简介:陈龙,硕士研究生,主要研究方向为滚动轴承性能分析。
基金资助:
* 国家重点研发计划资助项目(2019YFB2005001)

Research on elasto-hydrodynamic grease lubrication state for tapered roller bearings in wind turbine gearbox

CHEN Long^1,2, LI Lun^1,2, XUE Yujun^1,2, LI Yuchuan^3,4, HUANG Wei^3,4

1 School of Mechanical Engineering,Henan University of Science and Technology, Luoyang 471003,China;
2 Henan Provincial Key Laboratory of Mechanical Design and Transmission System, Luoyang 471003,China;
3 Luoyang Bearing Group Co.,Ltd.,Luoyang 471039,China;
4 State Key Laboratory of Aviation Precision Bearings,Luoyang 471039,China

Received:2024-08-10 Online:2025-04-18 Published:2025-05-08

摘要/Abstract

摘要： 针对风电增速箱圆锥滚子轴承(FD-306/1025/YB)的弹流脂润滑(EHL)状态展开研究。利用旋转流变仪对Mobil SHC 460 WT润滑脂在不同温度下的剪切应力和黏度随剪切速率的变化进行测试,并结合非牛顿流体Herschel-Bulkley模型,拟合出对应的流变参数;基于有限差分法建立大功率风电增速箱圆锥滚子轴承线接触弹流脂润滑模型,对其在不同转速、载荷及温度工况下的油膜厚度及润滑状态进行分析。结果表明,随着剪切速率的增加和温度的上升,润滑脂的黏度降低,具有明显的剪切稀化和黏温特性;轴承转速的提高、载荷的减小和温度的降低,都会使滚子-滚道间整体膜厚增加,膜厚比增大,润滑状态得到改善,高转速工况下轴承膜厚比受温度影响的程度更大,润滑状态变化得更显著。

关键词: 风电增速箱, 圆锥滚子轴承, 弹流脂润滑, 油膜厚度, 载荷, 转速, 温度

Abstract: The Elasto-Hydrodynamic grease Lubrication (EHL) state of tapered roller bearings (FD-306/1025/YB) in wind turbine gearboxes was studied. The shear stress and viscosity of Mobil SHC 460 WT grease at different temperature were tested with the change of shear rate by a rotary rheometer. The corresponding rheological parameters were fitted with the Herschel-Bulkley model of non-Newtonian fluid. Based on the finite difference method,the linear contact elasto-hydrodynamic grease lubrication model of tapered roller bearing in high-power wind turbine gearboxes was established,and the oil film thickness and lubrication state were analyzed under different speed,load and temperature conditions. The results indicate that with the increase of shear rate and temperature,the viscosity of the grease decreased and had obvious shear thinning and viscosity-temperature character-istics. The increase of rotational speed,the decrease of bearing load and the decrease of temperature would increase the overall film thickness between the roller and raceway,increase the film thickness ratio and improve the lubrication state. Under high-speed conditions,the bearing film thickness ratio was more significantly affected by temperature,leading to more pronounced changes in the lubrication state.

Key words: wind turbine gearbox, tapered roller bearings, elasto-hydrodynamic grease lubrication, oil film thickness, load, rotational speed, temperature

中图分类号:

TH133.3

陈龙, 李伦, 薛玉君, 李玉川, 黄伟. 风电增速箱圆锥滚子轴承弹流脂润滑状态研究^*[J]. 现代制造工程, 2025, 535(4): 109-115.

CHEN Long, LI Lun, XUE Yujun, LI Yuchuan, HUANG Wei. Research on elasto-hydrodynamic grease lubrication state for tapered roller bearings in wind turbine gearbox[J]. Modern Manufacturing Engineering, 2025, 535(4): 109-115.

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风电增速箱圆锥滚子轴承弹流脂润滑状态研究^*

Research on elasto-hydrodynamic grease lubrication state for tapered roller bearings in wind turbine gearbox

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