热轧精轧接轴失效原因分析

摘要

The task of the finishing mill's spindle is torque transmission ,the quality and reliability of spindle is the key to the stable operation of mill .By analyzing the reason for rolling spindle failure ,we know the main causes of spindle failure are the low hardness of sleeve ,the failure of the connecting rod ,the oil ring and the gear cover bolt .Based on the analysis results ,some corresponding improvement measures are put forward ,to ensure the stable operation of rolling spindle .%精轧接轴承担传递轧制扭矩的重要任务，接轴质量的优劣和可靠性是精轧机组能否稳定运行的关键。通过对精轧接轴失效原因的分析，确定了扁头套硬度低、连杆失效、进油环失效及辊端鼓形齿压盖螺栓断裂、甩油是造成接轴失效的主要原因，并针对失效原因制定了相应的改进措施，确保精轧接轴稳定运行。