【摘要】 钢包回转台是炼钢车间中低速重载工况下工作的重要设备。某企业的钢包回转台在运行过程中出现了回转支承强度不足的问题。为了探究回转支承的破坏原因，采用理论计算和数值仿真的方法开展研究。采用赫兹接触理论对两种工况下的回转支承进行相应的研究。经过仿真验证发现，在偏载工况下，回转支承中部分滚动体的应力超过了滚动体材料的屈服应力，导致了破坏。为改善受力状态，对回转支承结构的尺寸进行了优化选择，以降低应力。更多还原

【Abstract】 The ladle rotary table is an important equipment working under low-speed and heavy load conditions in steelmaking workshop. The insufficient strength problem of the slewing bearing of the ladle rotary table in an enterprise occurred during the operation. In order to investigate the cause of the damage of the slewing bearing, theoretical calculations and numerical simulations are used to carry out the study. The Hertz contact theory is used to study the slewing bearing under two working conditions accordingly. After simulation verification, it is found that under the partial load condition, the stress of some rolling bodies in the slewing bearing exceeds the yield stress of the rolling body material, resulting in damage. In order to improve the stress condition, the size of the slewing bearing structure was optimally selected to reduce the stress.更多还原