CN105486757A - Portable flaw detector defect positioning method - Google Patents
Portable flaw detector defect positioning method Download PDFInfo
- Publication number
- CN105486757A CN105486757A CN201510977393.6A CN201510977393A CN105486757A CN 105486757 A CN105486757 A CN 105486757A CN 201510977393 A CN201510977393 A CN 201510977393A CN 105486757 A CN105486757 A CN 105486757A
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- 230000007547 defect Effects 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000000523 sample Substances 0.000 claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000004807 localization Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000002950 deficient Effects 0.000 description 7
- 238000007689 inspection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
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- Engineering & Computer Science (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a portable flaw detector defect positioning method, comprising following steps: placing a probe in a contrast sample hollow shaft with a known defect actual distance L1, precisely measuring a horizontal distance d1 from a defect point to an incidence point of a probe transverse wave emitter in instrument, directly reading a sum of values of a distance d3 from a 0 scale at the front end of a probe rod to a shaft end and a distance d4 from the shaft end to the outer edge of an adapter according to scales on the probe, wherein a distance d2 from the incident point of the probe transverse wave emitter to the 0 scale at the front end of the probe rod and the distance d4 from the shaft end to the outer edge of the adapter are to be measured; by the contrast sample hollow shaft known actual distance L1 and a readable parameter L (d1+d3+d4), performing axial deviation calibration to obtain L-L1=d4-d2=X1, wherein the transverse wave flaw detection defect actual distance L1 can be expressed as L1=L-X1 by using the readable parameter L. Compared with a well-known portable flaw detector defect detection algorithm, the method effectively solves the problem of inaccurate defect position caused by fuzzy estimation on the defect position when a portable flaw detector is used, the defect position of a shaft body can be precisely obtained and flaw detection accuracy can be effectively ensured.
Description
Technical field
The present invention relates to a kind of axletree method of detection, specifically a kind of portable defectoscope defect positioning method, belong to metal ultrasonic and detect inspection technique field.
Background technology
Under the background of China railways speed raising, the high-speed railway motor train unit to reaching maintenance mileage is especially needed to overhaul, to ensure operation security.When overhauling, need to carry out UT (Ultrasonic Testing) inspection to axletree.Existing ultrasonic test equipment only can detect solid axle, but the axletree that high-speed railway motor train unit adopts is basic hole-bored axle from end to end, needs probe to be stretched into axletree inside and carries out complete detection.At present, known portable detection equipment is all the method pulling out feeler lever tape measuring Position Approximate or fuzzy estimate after adopting blaze to the defective locations detected when detecting a flaw, draw a range position at defect place, the particular location of defect can not be drawn accurately, can not ensure the degree of accuracy of defect and accuracy when making to detect a flaw.
Summary of the invention
Technical matters to be solved by this invention is, overcome the shortcoming of prior art, a kind of portable defectoscope defect positioning method is provided, avoids the inaccurate problem of the defective locations fuzzy estimate of defective locations brought when using portable defectoscope, effectively ensure that the accuracy of flaw detection.
In order to solve above technical matters, the invention provides a kind of portable defectoscope defect positioning method, this portable defectoscope comprises feeler lever, pop one's head in and be located at the adapter of axle head, described feeler lever is penetrated by the adapter being arranged on axle head, and described probe is installed penetrating the feeler lever end winding support in axle, described probe is provided with shear wave transmitter and P wave emission device, and described feeler lever is provided with scale 0 point with probe junction, and described feeler lever is provided with graduation indication mark; This localization method comprises the steps:
(1) detection with transversal waves localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L1, in instrument, accurate measurement defect point is to the horizontal range d1 of probe shear wave transmitter incidence point, directly read feeler lever front end scale 0 to the distance d3 of axle head and axle head to the numerical value sum of the distance d4 of adapter outer edge by the scale on feeler lever, namely directly read in the scale of d3+d4 data on feeler lever; And shear wave transmitter incidence point of popping one's head in is to be measured to distance d2 the unknown of feeler lever front end scale 0;
2. show that the axial location of actual defects is: L1=d1+d2+d3 by converting, but the numerical value that can directly read is: L=d1+d3+d4;
3. by contrasting the sample known actual range L1 of tubular shaft defect and axial deviation demarcation can being carried out by readout value L, obtain L-L1=d4-d2=X1, can deviation X1 be calibrated thus, and be preset parameter, be i.e. the axial shear wave deviation of feeler lever;
4. detection with transversal waves defect actual range L1 can utilize and can read parameter L and be expressed as: L1=L-X1;
(2) compressional wave flaw detection localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L2, directly read by the scale on feeler lever and measure feeler lever front end scale 0 to the distance d3 ' of axle head and axle head to the numerical value sum of the distance d4 ' of adapter outer edge, namely directly read in the scale of d3 '+d4 ' data on feeler lever; Probe P wave emission device incidence point is unknown to be measured to the distance d2 ' of feeler lever front end scale 0;
2. draw defect axial location by conversion: L2=d2 '+d3 ', directly can read parameter: L '=d3 '+d4 ';
3. carry out axial deviation demarcation by contrasting the sample known actual range L2 of tubular shaft defect and parameter L ' can being read, obtain L '-L2=d4 '-d2 '=D2, deviation D 2 can be calibrated thus, and be preset parameter, be i.e. the axial compressional wave deviation of feeler lever;
4. compressional wave detection defects actual range L2 can utilize and can read parameter L ' and be expressed as: L2=L '-D2.
Further restriction technical scheme of the present invention: aforesaid portable defectoscope defect location method, described shear wave transmitter and P wave emission device are ultrasonic transmitter.
Further, aforesaid portable defectoscope defect location method, pops one's head in described feeler lever end described in helicitic texture connection.
The invention has the beneficial effects as follows: the present invention detects the algorithm of defect relative to known portable defectoscope, it effectively solves the inaccurate problem of defective locations brought the fuzzy estimate of defective locations when using portable defectoscope, the position of axle body defect can be drawn accurately, effectively ensure that the accuracy of flaw detection.
Accompanying drawing explanation
Fig. 1 is detection with transversal waves defect sturcture schematic diagram of the present invention.
Fig. 2 is compressional wave detection defects structural representation of the present invention.
Embodiment
embodiment 1
The present embodiment provides a kind of portable defectoscope defect positioning method, structure as shown in Figure 1 to Figure 2, this portable defectoscope comprises feeler lever 3, probe 4 and is located at the adapter 2 of axle head, feeler lever is penetrated by the adapter being arranged on axle head, and penetrate the feeler lever end winding support in axle install probe, popped one's head in by helicitic texture connection in feeler lever end, probe is provided with shear wave transmitter and P wave emission device, feeler lever is provided with scale 0: 1 with probe junction, and feeler lever is provided with graduation indication mark; This localization method comprises the steps:
(1) detection with transversal waves localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L1, in instrument, accurate measurement defect point is to the horizontal range d1 of probe shear wave transmitter incidence point, directly read feeler lever front end scale 0 to the distance d3 of axle head and axle head to the numerical value sum of the distance d4 of adapter outer edge by the scale on feeler lever, namely directly read in the scale of d3+d4 data on feeler lever; And shear wave transmitter incidence point of popping one's head in is to be measured to distance d2 the unknown of feeler lever front end scale 0;
2. show that the axial location of actual defects is: L1=d1+d2+d3 by converting, but the numerical value that can directly read is: L=d1+d3+d4;
3. by contrasting the sample known actual range L1 of tubular shaft defect and axial deviation demarcation can being carried out by readout value L, obtain L-L1=d4-d2=X1, can deviation X1 be calibrated thus, and be preset parameter, be i.e. the axial shear wave deviation of feeler lever;
4. detection with transversal waves defect actual range L1 can utilize and can read parameter L and be expressed as: L1=L-X1;
(2) compressional wave flaw detection localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L2, directly read by the scale on feeler lever and measure feeler lever front end scale 0 to the distance d3 ' of axle head and axle head to the numerical value sum of the distance d4 ' of adapter outer edge, namely directly read in the scale of d3 '+d4 ' data on feeler lever; Probe P wave emission device incidence point is unknown to be measured to the distance d2 ' of feeler lever front end scale 0;
2. draw defect axial location by conversion: L2=d2 '+d3 ', directly can read parameter: L '=d3 '+d4 ';
3. carry out axial deviation demarcation by contrasting the sample known actual range L2 of tubular shaft defect and parameter L ' can being read, obtain L '-L2=d4 '-d2 '=D2, deviation D 2 can be calibrated thus, and be preset parameter, be i.e. the axial compressional wave deviation of feeler lever;
4. compressional wave detection defects actual range L2 can utilize and can read parameter L ' and be expressed as: L2=L '-D2.
The measurement of the present embodiment portable defectoscope promotes probe with feeler lever to spin in hollow shaft of motor train unit the forward/backward motion of formula, and axial defective locations needs to measure accurately Probe index and arrives the distance d3 of axle head, axle head to the distance d4 of adapter outer edge to the distance d2 of feeler lever front end scale 0, defect point to the distance d1 of Probe index, feeler lever front end scale 0.Wherein d1 can directly read in instrument, (d3+d4) can read in the scale on feeler lever, but d2 and d4 compare be not easy measure, just measure at last and also have error, the defective locations detected can be caused inaccurate, by the method provided in the present embodiment, do not need independent measurement d2 and d4, by fixing straggling parameter, undertaken by the numerical value that can directly read calculating the accurate location that can complete defect.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (3)
1. a portable defectoscope defect positioning method, this portable defectoscope comprises feeler lever, pop one's head in and be located at the adapter of axle head, described feeler lever is penetrated by the adapter being arranged on axle head, and described probe is installed penetrating the feeler lever end winding support in axle, described probe is provided with shear wave transmitter and P wave emission device, described feeler lever is provided with scale 0 point with probe junction, and described feeler lever is provided with graduation indication mark; It is characterized in that this localization method comprises the steps:
(1) detection with transversal waves localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L1, in instrument, accurate measurement defect point is to the horizontal range d1 of probe shear wave transmitter incidence point, directly read feeler lever front end scale 0 to the distance d3 of axle head and axle head to the numerical value sum of the distance d4 of adapter outer edge by the scale on feeler lever, namely directly read in the scale of d3+d4 data on feeler lever; And shear wave transmitter incidence point of popping one's head in is to be measured to distance d2 the unknown of feeler lever front end scale 0;
2. show that the axial location of actual defects is: L1=d1+d2+d3 by converting, but the numerical value that can directly read is: L=d1+d3+d4;
3. by contrasting the sample known actual range L1 of tubular shaft defect and axial deviation demarcation can being carried out by readout value L, obtain L-L1=d4-d2=X1, can deviation X1 be calibrated thus, and be preset parameter, be i.e. the axial shear wave deviation of feeler lever;
4. detection with transversal waves defect actual range L1 can utilize and can read parameter L and be expressed as: L1=L-X1;
(2) compressional wave flaw detection localization method:
1. probe is put into the contrast sample tubular shaft of known defect actual range L2, directly read by the scale on feeler lever and measure feeler lever front end scale 0 to the distance d3 ' of axle head and axle head to the numerical value sum of the distance d4 ' of adapter outer edge, namely directly read in the scale of d3 '+d4 ' data on feeler lever; Probe P wave emission device incidence point is unknown to be measured to the distance d2 ' of feeler lever front end scale 0;
2. draw defect axial location by conversion: L2=d2 '+d3 ', directly can read parameter: L '=d3 '+d4 ';
3. carry out axial deviation demarcation by contrasting the sample known actual range L2 of tubular shaft defect and parameter L ' can being read, obtain L '-L2=d4 '-d2 '=D2, deviation D 2 can be calibrated thus, and be preset parameter, be i.e. the axial compressional wave deviation of feeler lever;
4. compressional wave detection defects actual range L2 can utilize and can read parameter L ' and be expressed as: L2=L '-D2.
2. portable defectoscope defect location method according to claim 1, is characterized in that: described shear wave transmitter and P wave emission device are ultrasonic transmitter.
3. portable defectoscope defect location method according to claim 1, is characterized in that: pop one's head in described feeler lever end described in helicitic texture connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977393.6A CN105486757B (en) | 2015-12-23 | 2015-12-23 | A kind of portable defectoscope defect positioning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510977393.6A CN105486757B (en) | 2015-12-23 | 2015-12-23 | A kind of portable defectoscope defect positioning method |
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| CN105486757A true CN105486757A (en) | 2016-04-13 |
| CN105486757B CN105486757B (en) | 2018-06-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387647A (en) * | 2018-03-16 | 2018-08-10 | 南通友联数码技术开发有限公司 | Lorry axle defect positioning device |
| CN109541039A (en) * | 2018-12-24 | 2019-03-29 | 南京林城亿轮轨道交通技术有限公司 | Portable rolling stock wheel structures the formation method to rim ultrasonic flaw detection probe |
| CN111693673A (en) * | 2020-06-22 | 2020-09-22 | 重庆快捷长征无损检测有限责任公司 | Monorail vehicle hollow shaft detection device that detects a flaw |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070220981A1 (en) * | 2006-03-23 | 2007-09-27 | Denso Corporation | Ultrasonic sensor |
| CN101634637A (en) * | 2009-08-06 | 2010-01-27 | 柴吕波 | Bearing pipe video online detection device |
| CN201773090U (en) * | 2010-08-18 | 2011-03-23 | 北京新联铁科技发展有限公司 | Ultrasonic flaw detection adapter |
| CN201984056U (en) * | 2011-01-31 | 2011-09-21 | 北京新联铁科技发展有限公司 | Hollow-axle ultrasonic flaw-detecting machine |
| CN204101509U (en) * | 2014-08-01 | 2015-01-14 | 南京林城亿轮轨道交通技术有限公司 | Contactless leakage of fault detecting probe rod of hollow axle |
| CN104865312A (en) * | 2015-04-23 | 2015-08-26 | 南京航空航天大学 | Multiple unit train hollow shaft ultrasonic detection system and detection method |
-
2015
- 2015-12-23 CN CN201510977393.6A patent/CN105486757B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070220981A1 (en) * | 2006-03-23 | 2007-09-27 | Denso Corporation | Ultrasonic sensor |
| CN101634637A (en) * | 2009-08-06 | 2010-01-27 | 柴吕波 | Bearing pipe video online detection device |
| CN201773090U (en) * | 2010-08-18 | 2011-03-23 | 北京新联铁科技发展有限公司 | Ultrasonic flaw detection adapter |
| CN201984056U (en) * | 2011-01-31 | 2011-09-21 | 北京新联铁科技发展有限公司 | Hollow-axle ultrasonic flaw-detecting machine |
| CN204101509U (en) * | 2014-08-01 | 2015-01-14 | 南京林城亿轮轨道交通技术有限公司 | Contactless leakage of fault detecting probe rod of hollow axle |
| CN104865312A (en) * | 2015-04-23 | 2015-08-26 | 南京航空航天大学 | Multiple unit train hollow shaft ultrasonic detection system and detection method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387647A (en) * | 2018-03-16 | 2018-08-10 | 南通友联数码技术开发有限公司 | Lorry axle defect positioning device |
| CN109541039A (en) * | 2018-12-24 | 2019-03-29 | 南京林城亿轮轨道交通技术有限公司 | Portable rolling stock wheel structures the formation method to rim ultrasonic flaw detection probe |
| CN111693673A (en) * | 2020-06-22 | 2020-09-22 | 重庆快捷长征无损检测有限责任公司 | Monorail vehicle hollow shaft detection device that detects a flaw |
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| CN105486757B (en) | 2018-06-29 |
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Effective date of registration: 20200324 Address after: No. 2, Xiu Yu Road, Binjiang Development Zone, Jiangning District, Nanjing, Jiangsu Patentee after: NANJING DIKAI ELECTRICAL AUTOMATION Co.,Ltd. Address before: 32, No. 1, No. 211100, Jishan Avenue, Jiangning Economic Development Zone, Jiangsu, Nanjing Patentee before: NANJING E-RIM TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20200630 Address after: No.43, Xingmin North Road, Jiangning District, Nanjing City, Jiangsu Province Patentee after: Nanjing Zhongcheng Yilun Rail Transit Technology Co.,Ltd. Address before: No. 2, Xiu Yu Road, Binjiang Development Zone, Jiangning District, Nanjing, Jiangsu Patentee before: NANJING DIKAI ELECTRICAL AUTOMATION Co.,Ltd. |
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