The cause of spline shaft fractured was confirmed, according to test and analyze, which 200t ladle crane traveling agency universal coupling strength checking, macro-spline shaft fracture morphology, microstructure and the shape and size and hardness.The safety and reliability of the device were improved by taking safety measures about replacing the factory and putting up maintenance platforms and regulating installation maintenance.%通过对200吨铸造起重机走行机构万向联轴器的强度验算、断裂花键轴的宏观形貌、金相组织、形状尺寸和硬度的测试与分析，确定了花键轴断裂的原因。采取了更换厂家、增设检修平台和规范安装维护等安全措施，实施后提高了设备安全可靠性。
展开▼
