摘要
在钢轨探伤车长期应用过程中发现,探伤作业系统探轮更换困难,在数据量大时上位机会死机,探轮对中状态受铁屑、钢轨磨耗影响较大,对螺孔裂纹存在漏报现象。针对这些问题,设计了大操作空间的探轮承载机构,采用基于PXI总线的超声检测子系统及探轮激光对中方式研制了自主化探伤作业系统。为验证该系统的效果,进行了标定线试验和实际线路对比试验。试验结果表明:自主化探伤作业系统探轮更换容易,试验中未发现死机现象,探轮对中状态不受铁屑及水的影响,提高了伤损检出率。
There are many shortcomings in long term application of rail flaw dectection car,such as difficult replacement of probe wheel in flaw detection operation system,host computer crash during large amounts of data processing,probe wheel alignment state influenced by iron dust and rail abrasion,and missing screw hole cracks.For solving these problems,a probe wheel bearing mechanism with a large operating space was designed,and an autonomous flaw detection operation system was developed by adopting the ultrasonic detection subsystem based on PXI bus and laser alignment pattern of probe wheels.In order to verify the effectiveness of this system,the calibration line tests and actual line contrast tests were implemented.Results showed that replacing the probe wheels is easy in autonomous rail flaw detection operation system,there is no computer crash occurred in the tests,alignment state of probe wheel is not influenced by iron dust and water,and the flaw detection rate is also increased.
作者
杨国涛
YANG Guotao(Science and Technology Management Department, China Railway Corporation, Beijing 100844, China)
出处
《铁道建筑》
北大核心
2016年第9期124-126,共3页
Railway Engineering
基金
中国铁路总公司科技研究开发计划(2015G003-A
2015G003-F)
