高速板带轧机四列滚动轴承非均匀接触力学性能及修形优化研究

doi:10.3901/JME.2021.19.012

机械工程学报 ›› 2021, Vol. 57 ›› Issue (19): 128-137.doi: 10.3901/JME.2021.19.012

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高速板带轧机四列滚动轴承非均匀接触力学性能及修形优化研究

吝水林, 孙建亮, 彭艳

燕山大学国家冷轧板带装备及工艺工程技术研究中心秦皇岛 066004

收稿日期:2020-11-01 修回日期:2021-04-20 出版日期:2021-10-05 发布日期:2021-12-13
通讯作者: 孙建亮（通信作者），男，1981年出生，博士，教授，博士研究生导师。研究方向为先进成形及热处理技术，设备和产品智能在线监测、诊断和调控。E-mail：sunjianliang@ysu.edu.cn
作者简介:吝水林,男,1991年出生,博士研究生。主要研究方向为轴承动力学建模及故障诊断技术。E-mail:ysu735748@163.com;彭艳,男,1971年出生,博士,教授,博士研究生导师。研究方向为轧机稳健控制、轧机系统智能化、金属构件疲劳与延寿。E-mail:pengyan@ysu.edu.cn
基金资助:
国家重点研发计划（2017YFB0304103）、国家自然科学基金（52075473）和河北省教育厅高等学校科技计划重点项目（ZD2018203）资助项目。

Research on Non-uniform Contact Mechanical Properties and Modification Optimization of Four-row Rolling Bearings in High Speed Strip Mill

LIN Shuilin, SUN Jianliang, PENG Yan

National Engineering Research Center for Equipment and Technology of Cold Rolled Strip, Yanshan University, Qinhuangdao 066004

Received:2020-11-01 Revised:2021-04-20 Online:2021-10-05 Published:2021-12-13

摘要/Abstract

摘要： 针对高速板带轧机四列滚子轴承在偏载运行下滚子-滚道非均匀接触力学性能及滚子修形优化进行研究。建立了滚子-滚道接触力学模型，模拟了其偏载运行下的接触力学性能。提出滚子接触应力均匀分布原则，采用非对称对数曲线对四列滚子母线修形优化。研究表明：偏载轧制导致四列滚子承载分布严重不均，以某冷轧机四列滚子轴承为例，载荷分布偏差较常规轧制增加20%，列间接触应力差接近200MPa，单列滚子轴线方向接触应力差接近60MPa。接触应力差随修形量k₃差值减小而减小，当k₃差值减小到一定程度时，接触应力差反而变大，最终修形曲线优化参数为k₁=1.3，k₂=1，k₃=0.014-0.011。研究为延长轴承使用寿命、保证轧机安全稳定运行提供理论依据，具有重要工程意义。

关键词: 四列滚子轴承, 偏载效应, 接触力学, 仿真模拟, 修形优化

Abstract: The non-uniform mechanical properties of roller-raceway contact and the optimization of rolling element modification of four-row roller bearings for high speed strip mill under the misaligned loads operation are studied. The roller-raceway contact mechanics model is established, and the contact mechanics performance under the misaligned loads operation is simulated. The principle of uniform distribution of roller contact stress is proposed, and an asymmetric logarithmic curve is used to optimize the shape modification of the four-row roller bus. The research results show that misaligned loads cause serious uneven distribution of the rolling loads. A four-row roller bearing of a cold rolling mill is used as the research object, the loads distribution deviation is 20% higher than that of conventional rolling, and the contact stress difference between the rows is close to 200 MPa, the contact stress difference in the axial direction of a single row of rollers is close to 60 MPa. The contact stress difference decreases as the modification amount k₃ difference decreases, when the k₃ value decreases to a certain extent, the contact stress difference increases instead, the final optimization parameters of the modified curve are k₁ = 1.3, k₂ = 1, and k₃ = 0.014-0.011. Theoretical foundations for prolonging the life of bearings and ensuring the stable operation of the rolling mill are provided.

Key words: four-row roller bearing, misaligned loading effect, contact mechanics, simulation, modification optimization

中图分类号:

TG133.33

吝水林, 孙建亮, 彭艳. 高速板带轧机四列滚动轴承非均匀接触力学性能及修形优化研究[J]. 机械工程学报, 2021, 57(19): 128-137.

LIN Shuilin, SUN Jianliang, PENG Yan. Research on Non-uniform Contact Mechanical Properties and Modification Optimization of Four-row Rolling Bearings in High Speed Strip Mill[J]. Journal of Mechanical Engineering, 2021, 57(19): 128-137.

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高速板带轧机四列滚动轴承非均匀接触力学性能及修形优化研究

Research on Non-uniform Contact Mechanical Properties and Modification Optimization of Four-row Rolling Bearings in High Speed Strip Mill

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