飞剪机齿轮箱连接螺栓断裂故障研究分析
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摘要
针对飞剪机齿轮箱连接螺栓频繁断裂故障,通过现场试验,获得了剪切过程中螺栓的应力、振动以及齿轮箱的振动等信号;在信号分析的基础上,结合对螺栓静力学和模态分析的结果,确定了齿轮箱异常振动是螺栓频繁断裂的主要原因。根据剪切工艺,对齿轮箱轴承座的信号进一步分析,发现了同剪切速度极其相关的边频带,最终确定了其直接原因为齿轮箱输入轴上的齿轮故障。现场维修发现了齿轮箱输入轴的轴承偏心套磨损,证明了本文工作的有效性。
In order to solve the continual bolt fracture fault for gearbox of flying shear, the signals including stress & vibration of bolt and vibration of gearbox during cutting process have been obtained via site testing.It is determined that the abnormal vibration of gearbox is the main reason for bolt fracture. The signals of gearbox bearing support have been further analyzed as per the shearing process. The side-band closely related to shearing speed has been found. Finally it is determined that the direct reason is gear fault of input shaft of gearbox. The eccentricity ring of bearing for input shaft has been worn down at site maintenance. The effec-tiveness of the text has been proved.
In order to solve the continual bolt fracture fault for gearbox of flying shear, the signals including stress & vibration of bolt and vibration of gearbox during cutting process have been obtained via site testing.It is determined that the abnormal vibration of gearbox is the main reason for bolt fracture. The signals of gearbox bearing support have been further analyzed as per the shearing process. The side-band closely related to shearing speed has been found. Finally it is determined that the direct reason is gear fault of input shaft of gearbox. The eccentricity ring of bearing for input shaft has been worn down at site maintenance. The effec-tiveness of the text has been proved.
引文
[1]李晓虎,贾平民,徐飞云.频谱分析法在齿轮箱故障诊断中的应用[J].振动、测试与诊断,2006,23(3):168-170.
[2]戚晓丽,潘紫薇.频谱分析法在齿轮箱故障诊断中的应用[J].安徽工业大学学报,2006,23(4):415-416.
[3]王小青,夏水华.螺栓断裂影响因素与影响机制[J].起重运输机械,2010,45(5):45-48.
[4]陈传尧.工程力学[M].北京:高等教育出版社,2006.
[5]崔彦平.机械故障诊断学[M].北京:电子工业出版社,2007.
[6]任学平,秦莉莉,施磊.轧机主传动齿轮箱振动原因分析与判断[J].内蒙古科技大学学报,2009,28(4):322-325.
[7]易良榘.简易振动诊断现场实用技术[M].北京:机械工业出版社,2003.
[8]陈姗姗.齿轮箱异常振动的诊断[J].中国设备工程,2004,30(8):92-95.
[9]彭二宝.机床液压设备故障诊断及维修方法[J].锻压装备与制造技术,2008,43(4):92-95.
[10]张新国,冯涛,韩杰.设备维修的新模式-设备门诊/设备急诊模式探讨[J].锻压装备与制造技术,2011,46(6):92-95.
[11]J.Mathew.commom vibration monitoring techniques.Handbook of condition monition,1998:307-313.
[12]Ster Wen Richards.Rotating equipment's vibration analysis of rolling mills.Equipment management and maintenance,1995,(9-10).
[2]戚晓丽,潘紫薇.频谱分析法在齿轮箱故障诊断中的应用[J].安徽工业大学学报,2006,23(4):415-416.
[3]王小青,夏水华.螺栓断裂影响因素与影响机制[J].起重运输机械,2010,45(5):45-48.
[4]陈传尧.工程力学[M].北京:高等教育出版社,2006.
[5]崔彦平.机械故障诊断学[M].北京:电子工业出版社,2007.
[6]任学平,秦莉莉,施磊.轧机主传动齿轮箱振动原因分析与判断[J].内蒙古科技大学学报,2009,28(4):322-325.
[7]易良榘.简易振动诊断现场实用技术[M].北京:机械工业出版社,2003.
[8]陈姗姗.齿轮箱异常振动的诊断[J].中国设备工程,2004,30(8):92-95.
[9]彭二宝.机床液压设备故障诊断及维修方法[J].锻压装备与制造技术,2008,43(4):92-95.
[10]张新国,冯涛,韩杰.设备维修的新模式-设备门诊/设备急诊模式探讨[J].锻压装备与制造技术,2011,46(6):92-95.
[11]J.Mathew.commom vibration monitoring techniques.Handbook of condition monition,1998:307-313.
[12]Ster Wen Richards.Rotating equipment's vibration analysis of rolling mills.Equipment management and maintenance,1995,(9-10).