高速纸机烘缸轴承劣化振动变化规律及谱特征  

Vibration Law of High-Speed-Paper-Machine Drying Cylinder Bearings in Deterioration and Its Spectrum Characteristics

作　　者：张辉[1,2] 张笑如[1,3] 

机构地区：[1]南京林业大学江苏省制浆造纸科学与技术重点实验室,南京210037 [2]华南理工大学制浆造纸工程国家重点实验室,广州510640 [3]亚洲浆纸金东纸业有限公司,镇江212132

出　　处：《振动．测试与诊断》2010年第5期585-588,共4页Journal of Vibration,Measurement & Diagnosis

基　　金：华南理工大学制浆造纸国家重点实验室资助项目(编号:200738)

摘　　要：利用某振动信号在线与离线测试系统,研究了一台高速纸机干燥部烘缸轴承的劣化过程振动变化规律及谱图特征。研究表明:处于高温、高负荷、高湿度特殊工况下,高速纸机烘缸轴承的损坏主要是内圈滚道的剥落。随着剥落的加剧,烘缸轴承振动值增大,振动频谱中轴承损坏频率从高频区向低频区转移,损坏频率两边的转速边带逐渐增多增高。一旦烘缸轴承外圈断裂,振动频谱将全部呈现为转速谐频的松动特征。Under the condition of high temperature,excess moisture and heavy load,the main damaged pattern of drying cylinder bearings of high speed paper machine is their inner race surface peeling in the rolling path.With the increase of the inner race surface peeling,the drying cylinder bearings' vibrations rise.The fault frequency in the vibration frequency spectrum shifts from the high frequency band to the low frequency band,and the shaft speed sidebands by both sides of fault frequency increase and heighten gradually.In the case of outer race's rupture of drying cylinder bearings,the whole band of vibrating frequency spectrum will feature the speed frequency's loose characteristics.

关 键 词：造纸机 烘缸轴承 劣化振动 状态监测 故障诊断 波形图 频谱图 

分 类 号：TS734.4[轻工技术与工程—制浆造纸工程] TP206.3[自动化与计算机技术—检测技术与自动化装置]