高炉布料器下回转支承的动力学特性仿真研究

Simulation Study on Dynamic Characteristics of Slewing Bearing of Blast Furnace Distributor

下回转支承是高炉布料器的重要部件,滚柱滚道破坏的现象在工作中时有发生。为了得到滚柱和滚道在工作中的受力情况,对下回转支承进行动力学仿真。通过对下回转支承进行受力分析,得到了其在工作中所受的外载荷。将建立好的回转支承三维模型导入到Adams软件中进行动力学仿真,得到溜槽倾角两个极限位置的滚柱与滚道接触力。结果表明,滚柱在工作中所受到的接触力符合使用要求,滚柱上下端面在运动中平移速度基本相同,排除了因滚柱受力过大、运动不平稳造成的破坏。为回转支承的实际应用、预期寿命、应力和变形等后续研究提供参考依据。

The lower slewing bearing is an important part of the blast furnace distributor.The phenomenon of roller raceway failure often occurs during work.In order to obtain the force of the roller and raceway during work,the dynamic simulation of the lower slewing bearing was performed.By carrying out a force analysis of the lower slewing bearing,the external load that it receives in work was obtained.The established three-dimensional model of the slewing bearing was imported into Adams software for dynamic simulation.The contact force between the roller and the raceway at the two extreme positions of the inclination angle of the chute was obtained through simulation.The results show that the contact force that the roller receives during work meets the requirements for use,and the translation speed of the upper and lower end surfaces of the roller is basically the same during the movement,eliminating the possibility of rolling.Damage caused by excessive force on the column and uneven movement.It provides a reference for the subsequent research on the practical application,life expectancy,stress and deformation of slewing bearings.