中国机械工程 ›› 2025, Vol. 36 ›› Issue (11): 2624-2632.DOI: 10.3969/j.issn.1004-132X.2025.11.018

• 机械基础工程 • 上一篇    

基于热网络法的风电机组主轴承温度场分析

李云峰1,2(), 李金成1,2, 仲志丹1,2   

  1. 1.河南科技大学机电工程学院, 洛阳, 471003
    2.高端轴承河南省协同创新中心, 洛阳, 471003
  • 收稿日期:2024-06-17 出版日期:2025-11-25 发布日期:2025-12-09
  • 通讯作者: 李云峰
  • 作者简介:李云峰*(通信作者),男,1973年生,教授。研究方向为滚动轴承的设计理论、性能分析与应用。 E-mail: liyunfeng@haust.edu.cn
  • 基金资助:
    河南省重大科技专项(221100220100)

Temperature Field Analysis of Main Bearings in Wind Turbines Based on Thermal Network Method

Yunfeng LI1,2(), Jincheng LI1,2, Zhidan ZHONG1,2   

  1. 1.School of Mechatronics Engineering,Henan University of Science and Technology,Luoyang,Henan,471003
    2.Collaborative Innovation Center of Henan Province for High-End Bearing,Luoyang,Henan,471003
  • Received:2024-06-17 Online:2025-11-25 Published:2025-12-09
  • Contact: Yunfeng LI

摘要:

针对结构型式为三排圆柱滚子的风电机组主轴承的发热温升问题,建立了一种基于热网络法的轴承温度场分析方法。通过对轴承滚子进行切片处理,利用变形协调条件建立轴承的受力平衡方程组,求解得到滚子切片载荷,并对滚子切片与滚道表面之间的滑动运动进行分析;然后,根据轴承零件之间的载荷作用和相对滑动运动,得到滚子、滚道、保持架和密封圈相互接触部位的摩擦热源发热功率;最后,根据轴承的摩擦发热部位及内部具体结构,采用热网络法设置轴承内部的网络节点,并建立轴承的热网络平衡方程组。针对具体的2.0 WM风电机组主轴承,求解分析了润滑黏度、轴向游隙、滚子数量及转速对轴承温度的影响。

关键词: 风电机组, 主轴承, 三排圆柱滚子, 热网络, 温度场

Abstract:

Based on thermal network method,a bearing temperature field analysis method was established to address the heating and temperature rise problems of the main bearings in wind turbine with a three-row cylindrical roller structure. By slicing the rollers of the bearings, a force balance equation system of the bearings was established by using deformation coordination conditions, the roller slice loads were obtained by solving the equation systems. The sliding motions between the roller slices and the raceway surfaces were also analyzed. Then, based on the load actions and relative sliding motions between the bearing parts, the heat generation powers of the friction heat source at the contact positions of the rollers, raceways, retainers and sealing rings were obtained. Finally, according to the friction heating positions and specific internal structures of the bearings, the thermal network method was used to set up the internal network nodes of the bearings, and the thermal network balance equation system of the bearings was established. For a specific the main bearing in a 2.0 MW wind turbine, the effects of lubrication viscosity, axial clearance, roller number and rotational speed on bearing temperature were solved and analyzed.

Key words: wind turbine, main bearing, three-row cylindrical roller, thermal network, temperature field

中图分类号: