钢管穿孔机下辊减速箱故障诊断.pdfVIP

钢管穿孔机下辊减速箱故障诊断 秦 浩1 (上海宝钢工业检测公司，上海 201900) 摘 要 齿轮箱传动系统是化工、机械、航空和船舶等重要行业的关键设备，保证它安全、可靠、平稳地运行是设 备维护工作的重点之一。引起齿轮箱振动值变化的因素诸多，如：齿轮箱输入轴的转速、联轴器结构和安装状态、 齿轮箱负载、润滑油系统等。钢管穿孔机下辊减速箱在运行过程中因输入轴轴承故障产生异音。诊断部技术人员根 据减速箱振动数据和信号，结合现场点检提供的信息，精确定位了设备故障。 关键词 转频 啮合频率 轴承故障频率 Defect Diagnosis Lower Roll Main Reducer of Steel Tube Piercing Mill Qin Hao (Shanghai Baosteel Industry Inspection Corporation, Shanghai, 201900) Abstract The gear box drive system is the key equipment of chemical industry, machinery, aviation, and shipbuilding industries. To ensure it safely, reliably and smoothly operate is one of the major maintenance work. Gearbox vibration caused by changes in the value of a number of factors, such as the input shaft speed, the structure and the installation status of coupling, the gear box load or the lubricating oil systems. The lower roll main reducer of steel tube piercing mill produces different sounds during operation due to input shaft bearing defect. Diagnostics division technical staffs exactly locate the equipment defect according to the gearbox vibration data and signals, integrating the information provided by the field workers. Key words frequency, tooth-mesh frequency, bearing defect frequency 1 引言 某穿孔机是钢管厂重要设备，如果因发生故障而引起非正常停机将会造成巨大的损失。2009 年 7 月， 某钢管点检在日常巡检过程中发现穿孔机下辊减速箱存在异音，遂委托我公司诊断技术部在不停机、不开箱 的情况下尽快查明异音产生的原因。诊断部技术人员根据减速箱振动数据和信号，结合现场点检提供的信息， 综合分析后确定齿轮箱输入轴轴承保持架存在故障。 2 简述 穿孔机下辊减速箱是钢管主作业线的重要设备，结构为 3 轴 4 齿轮 2 级斜齿减速箱。2009 年 7 月 10 日， 秦浩，男，硕士，助理工程师，从事振动诊断，qinhao4488@ 电 磁 冶 金 8-47 诊断部技术人员受现场点检委托，对