基于ANSYS的连铸辊轴承座的温度场分析
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摘要
连铸辊轴承在环境温度高、载荷大、工况复杂的条件下工作,如果轴承所接受的热量不能有效地散发,冷却未到位,过高的温度会引起轴承热变形,并会在大载荷下破裂,致使轴承过早失效,影响整个连铸铸钢的生产。连铸辊轴承座冷却方式是轴承座内部结构留有通水孔,对轴承座进行内部通水冷却。基于ANSYS对连铸辊轴承座的温度场进行了分析:建立轴承座的CAD三维几何模型和CAE模型,通过分析传热原理,得到轴承座的综合对流换热系数,以此作为边界条件,并加载实时工况下的温度作为载荷,对连铸辊轴承座系统在稳定工作的状态进行了温度分析,得到轴承座的整体温度分布,对连铸辊轴承座的设计安装提供了理论指导意义。
The work condition of continuous casting roll bearings is high temperature,large load and complex.If the heat which the bearing accepted can not be distributed effectively and cooling is not in place,the high temperature will cause thermal deformation and rupture at high loads,resulting in bearing premature failure,affecting the entire casting steel production.The cooling way the bearing seat is by the internal cooling water holes of the bearing seat.Based on the ANSYS,the temperature field of continuous casting roller bearing base is analyzed,three-dimensional geometric model and the CAE model of the bearing seat is established to obtain the synthesize convection heat transfer coefficient of bearing seat through the principle of heat transferIt is taken as the boundary condition,and load the temperature in the real-time condition.Temperature field of the continuous casting roller bearing seat in the stable work condition is analyzed,the overall temperature distribution is analyzed,which provides theoretical guidance for the design and installation of continuous casting roller bearing
The work condition of continuous casting roll bearings is high temperature,large load and complex.If the heat which the bearing accepted can not be distributed effectively and cooling is not in place,the high temperature will cause thermal deformation and rupture at high loads,resulting in bearing premature failure,affecting the entire casting steel production.The cooling way the bearing seat is by the internal cooling water holes of the bearing seat.Based on the ANSYS,the temperature field of continuous casting roller bearing base is analyzed,three-dimensional geometric model and the CAE model of the bearing seat is established to obtain the synthesize convection heat transfer coefficient of bearing seat through the principle of heat transferIt is taken as the boundary condition,and load the temperature in the real-time condition.Temperature field of the continuous casting roller bearing seat in the stable work condition is analyzed,the overall temperature distribution is analyzed,which provides theoretical guidance for the design and installation of continuous casting roller bearing
引文
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[4]戴锅生.传热学[M].北京:高等教育出版社,1999.
[5]田久良,洪军,朱永生,等.机床主轴-轴承系统热-力耦合模型及其动态性能研究[J].西安交通大学学报,2012,46(7):63-68.
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[7]丁彩平.高速精密角接触球轴承传热机理分析[J].机械研究与应用,2010(1):33-35.
[8]刘耀中,范崇惠.高碳铬轴承钢滚动轴承零件热处理技术发展与展望[J].金属热处理,2014(1):25-29.
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