钢包回转台关节轴承寿命计算与异响分析.pdfVIP

1钢包回转台关节轴承寿命计算与异响分析 1 2 2 2 陈建国 潘紫薇 包家汉 童靳于 （1.马钢股份公司设备部，马鞍山 243003 ；2.安徽工业大学机械工程学院，马鞍山 243002 ） 摘 要 某钢包回转台在投入运行 2 年后，举升机构升降时中间关节轴承处发出异常声响且出现明显的振动现象。 通过分析钢包回转台举升机构举升过程的受力，得到中间关节轴承处的最大受力和位置，在此基础上计算出中间关 节轴承的寿命满足使用要求；通过进一步分析中间关节轴承处结构的尺寸公差，表明此处一些结构的尺寸加工公差 若为 13 级或 13 级以上，结构存在干涉，这是造成钢包回转台产生异响的根本原因。 关键词 钢包回转台 关节轴承 举升机构 异响 Life Caculation on Spherical Plain Bearing and Abnormal Noise Analysis of Ladle Turret Chen Jianguo1 Pan Ziwei2 Bao Jiahan2 Tong Jinyu2 (1. Equipment Department of Ma’anshan Iron Steel Co., Ltd., Ma’anshan, 243003; 2. School of Mechanical Engineering, Anhui University of Technology, Ma’anshan, 243002) Abstract The middle spherical plain bearing had appeared abnormal noise and vibrated obviously when lifting mechanism was working after the ladle turret was put into operation 2 years later. The maxmum force and it’s position of spherical plain bearing was attained in the lifting process to analysize the force, and the caculated life of spherical plain bearing met the use requirements basing on the attained force. The structure at the position of sphercial plain bearing had existed interference if the machining tolerance of some size is equal or greater than grade 13 tolerance in the further analysis, and it was the root cause of exiting annormal noise. Key words ladle turret, spherical plain bearing, lifting mechanism, abnormal noise 1 引言 [1] 钢包回转台是炼钢厂的关键设备 ，位于炼钢跨和连铸跨之间，用于承接钢包并实现连续浇铸。由于钢 包回转台在连铸生产中被广泛采用，因此其结构的可靠性、安全性，以及制造的合理性、经济性已成为国内 许多设计单位关心的问题。某钢包回转台为国外设计，国内制造的平行四边形机构式双臂结构（图 1），采 用液压驱动，旋转半径为 6.4m，举升缸行程0.67m，钢包荷载总重G 4.8 =×106 N 。 该钢包回转台在投入运行初期未出现任何故障，但