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1. 发明专利

JP2013036824A Ultrasonic rail flaw detection apparatus 审中-公开
标题翻译：超声波检测装置
公开(公告)号：JP2013036824A
公开(公告)日：2013-02-21
申请号：JP2011172427
申请日：2011-08-05
申请人： East Japan Railway Co , 東日本旅客鉄道株式会社 , Tokyo Keiki Inc , 東京計器株式会社 , Tokyo Keiki Rail Techno Inc , 東京計器レールテクノ株式会社
发明人： MATSUDA HIROYUKI , TAKIGAWA MITSUNOBU , KOKUBU SEIJI , OZAWA KINGO
IPC分类号： G01N29/04
摘要： PROBLEM TO BE SOLVED: To shorten an inspection time by accelerating a traveling speed of a vehicle in which an ultrasonic rail flaw detection apparatus is mounted, during an inspection, in an ultrasonic rail flaw detection apparatus which includes a plurality of channels corresponding to different detection ranges, transmits ultrasonic pulses from a plurality of ultrasonic probes provided correspondingly to the plurality of channels to a rail and detects a flaw of the rail from reflection echo of the ultrasonic pulses.SOLUTION: A plurality of ultrasonic probes 12a-12g are divided into at least two groups of one or more ultrasonic probes 12a, 12b, 12e, 12f which transmit ultrasonic pulses at a first interval in accordance with reception times corresponding to detection ranges thereof and one or more ultrasonic probes 12c, 12d, 12g which transmit ultrasonic pulses at a second interval longer than the first interval, and transmit ultrasonic pulses at correspondent intervals, respectively.
摘要翻译：要解决的问题：在检查期间，通过加速安装有超声波轨道探伤装置的车辆的行进速度来缩短检查时间，在包括多个通道对应的超声波轨道探伤装置中将不同检测范围的超声波脉冲从对应于多个通道设置的多个超声波探头发送到轨道，并从超声脉冲的反射回波检测轨道的缺陷。解决方案：多个超声波探头12a-12g被分成至少两组一个或多个超声波探头12a，12b，12e，12f，它们根据对应于检测范围的接收时间以第一间隔传输超声波脉冲以及一个或多个超声波探头12c，12d，12g，其以比第一间隔更长的第二间隔发送超声波脉冲，并且分别以对应的间隔发送超声波脉冲。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2009145232A Device and method for measuring amount of corrosion in bottom of rail 有权
标题翻译：用于测量轨道底部的腐蚀量的装置和方法
公开(公告)号：JP2009145232A
公开(公告)日：2009-07-02
申请号：JP2007323599
申请日：2007-12-14
申请人： Tokyo Keiki Inc , Tokyo Keiki Rail Techno Inc , 東京計器レールテクノ株式会社 , 東京計器株式会社
发明人： KOKUBU SEIJI , SATO IZUMI , OZAWA KINGO
IPC分类号： G01N29/04
摘要： PROBLEM TO BE SOLVED: To provide a device for measuring an amount of corrosion in the bottom of a rail, precisely measuring an amount of corrosion in the bottom of a rail even if there is wear in the head of a rail, and to provide a method therefor.
SOLUTION: The method for measuring an amount of corrosion in the bottom of a rail includes the steps of: contacting an ultrasonic probe 12 to the top face of the head of a rail 1 having a head 1a, an abdomen 1b of which the horizontal width of a cross section shorter than that of the head 1a, and a bottom 1c of which the horizontal width of a cross section longer than that of the abdomen 1b; entering ultrasonic waves into the top face of the head vertically, at that time entering slightly diffused ultrasonic waves; detecting jaw-reflection echoes from a jaw 1d equivalent to the lower face of which the horizontal width of a cross section greater than that of the abdomen 1b of the head 1a of the rail and bottom-reflection echoes from the bottom 1c of the rail; determining the space between the jaw and a bottom-reflection source by the jaw-reflection echoes and the bottom-reflection echoes; comparing a measured value L of the space between the jaw and the bottom-reflection source with a reference value L
O ; deciding that there is bottom-corrosion of the rail when the measured value is smaller than the reference value; and determining the amount of the corrosion by the difference ΔL between the measured value L and the reference value L
O .
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于测量轨道底部的腐蚀量的装置，即使轨道的头部存在磨损，也能精确地测量轨道底部的腐蚀量，以及以提供其方法。解决方案：用于测量轨道底部的腐蚀量的方法包括以下步骤：使超声波探头12与具有头部1a的轨道1的头部的顶面接触，腹部1b的腹部1b 横截面的水平宽度短于头部1a的横截面宽度;以及底部1c，其横截面的横向宽度比腹部1b的横向宽度更长; 将超声波垂直进入头部顶面，此时进入轻微扩散的超声波; 从相当于下表面的钳口1d检测颚反射回波，其下面的横截面的水平宽度大于轨道头部1a的腹部1b的水平宽度，并且底部反射从轨道的底部1c回波; 通过颚式反射回波和底部反射回波确定颌骨和底部反射源之间的空间; 将钳口和底部反射源之间的空间的测量值L与参考值L O 进行比较; 当测量值小于参考值时，确定轨道有底部腐蚀; 并且通过测量值L和参考值L O 之间的差ΔL来确定腐蚀量。版权所有（C）2009，JPO＆INPIT

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