CN202974957U - Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle - Google Patents
Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle Download PDFInfo
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- CN202974957U CN202974957U CN 201220683222 CN201220683222U CN202974957U CN 202974957 U CN202974957 U CN 202974957U CN 201220683222 CN201220683222 CN 201220683222 CN 201220683222 U CN201220683222 U CN 201220683222U CN 202974957 U CN202974957 U CN 202974957U
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- flaw detection
- longitudinal wave
- small
- angle longitudinal
- locomotive axle
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a probe fixing manual scanning rack used during small-angle longitudinal wave flaw detection of a locomotive axle, and particularly relates to a small-angle longitudinal wave flaw detection scanning rack for a railway locomotive axle. The small-angle longitudinal wave flaw detection scanning rack for the railway locomotive axle mainly aims to solve the problem that the flaw detection precision and accuracy are affected as a fixed point is unavailable when the probe is moved during manual scanning of a wheel seat and a gear seat insertion part of the locomotive axle by using a small-angle longitudinal wave flaw detection method. A scanning rack fixing plate is provided with a positioning round pin concentric with the scanning rack fixing plate and a rectangular groove. The small-angle longitudinal wave flaw detection scanning rack for the railway locomotive axle is reasonable in design and simple in structure and is suitable for the small-angle longitudinal wave flaw detection of axles of most railway locomotives. The main acoustic beam of ultrasonic wave always passes through the axle of a center hole of the locomotive axle during flaw detection, the lengths of flaws can be measured accurately, and the flaw detection precision and accuracy are ensured.
Description
Technical field
A kind of scanning equipment when the utility model relates to the flaw detection of railway locomotive axletree small angle longitudinal wave, the fixing manual scanning frame of a kind of probe when relating to specifically the flaw detection of motorcycle axle small angle longitudinal wave.
Background technology
The Ultrasonic Detection that present rolling stock axletree 1 is bumped into section is all to adopt manual testing method mostly, mainly comprises small angle longitudinal wave defectoscopy and shear wave incident method.As shown in Figure 1, the small angle longitudinal wave defectoscopy is that small angle longitudinal wave probe 8 is placed on motorcycle axle 1 both ends of the surface 6, detecting wheel 4 wheel seats and gear 5 wheel seats are bumped into section 3,2 respectively, small angle longitudinal wave probe 8 is on axle end face 6 during manual scanning, probe 8 needs to point to center pit 10, and make the reciprocating saw profile of tooth around center pit 10 and move on axial end 6, motion track 12 as shown in Figure 2.But there is no point of fixity when moving on axial end 6 due to the probe 8 of ultra-sonic defect detector 7, when being not easy to guarantee to survey, ultrasound wave Main beam 9 passes center pit 10 axis of axletree all the time, therefore can affect to a certain extent flaw detection precision and accuracy, and also can't measure comparatively exactly its length when the discovery axletree is bumped into the circumferential crack of section.
Summary of the invention
The purpose of this utility model is for above-mentioned deficiency, and a kind of of proposition can guarantee that when Ultrasonic Detection railway locomotive axletree the Main beam of small angle longitudinal wave probe passes the center pit axis of axle end face all the time, guarantee to find axletree to be bumped into the circumferential crack maximum reflection ripple of section, can measure exactly a kind of manual failure detector of crack length.
Technical solution of the present utility model is: motorcycle axle small angle longitudinal wave flaw detection scanning frame is: be provided with a location round pin concentric with the scanning frame fixed head on the scanning frame fixed head, be provided with a rectangular channel on the scanning frame fixed head.
Rectangular channel described in technical solution of the present utility model is located on the scanning frame fixed head of the opposite one side of locating round pin, and the long limit of rectangular channel is less than the radius of scanning frame fixed head.
The circumference of the scanning frame fixed head described in technical solution of the present utility model is provided with the angle groove.
The utility model is reasonable in design, simple in structure, can be applied to the axletree small angle longitudinal wave flaw detection of most of rolling stocks, when guaranteeing to survey, ultrasonic beam is passed the center pit axis of axletree all the time, but axletree is bumped into section's circumferential crack length Accurate Determining, has therefore guaranteed precision and the accuracy of flaw detection.
Description of drawings
Fig. 1 is that axletree is bumped into section's small angle longitudinal wave method of detection schematic diagram.
Fig. 2 be small angle longitudinal wave probe from axial end to being bumped into section's scanning schematic diagram.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the left view of Fig. 3.
Fig. 5 uses the utility model to measure the schematic diagram that axletree is bumped into section's circumferential crack length.
Embodiment
as Fig. 3, shown in 4, the manual scanning frame of motorcycle axle small angle longitudinal wave flaw detection is to be provided with a register pin 13 on a scanning frame fixed head 11, scanning frame fixed head 11 is plectanes, register pin 13 is fixed on scanning frame fixed head 11 with scanning frame fixed head 11 is concentric, the size of the diameter of location round pin 13 and the center pit of axletree 1 is complementary, be provided with a rectangular channel 14 on scanning frame fixed head 11, rectangular channel 14 is located on the scanning frame fixed head 11 of opposite one side of fixed locating stud 13, the long limit of rectangular channel 14 is less than the radius of scanning frame fixed head 11, establish angled scale mark 15 on the circumference of scanning frame fixed head 11.Principle of work: use simultaneously the utility model scanning frame and small angle longitudinal wave probe 8 to carry out scanning from 6 pairs of the axial end axletree section of being bumped into, after determining flaw detection sensitivity, brush machine oil on the axle end face 6 of actual detection, then the location round pin 13 on the manual scanning frame of small angle longitudinal wave flaw detection is inserted in the center pit 10 of axletree 1; Small angle longitudinal wave probe 8 is placed in the rectangular channel 14 of scanning frame, radially move forward and backward detection, probe 8 only moves forward and backward in rectangular channel 14 scopes, guaranteed that probe 8 points to the center pit axis all the time, the 8 uniform stressed 2N ~ 5N that pop one's head in simultaneously make step-by-step movement with the speed of 20mm/s ~ 50mm/s and repeatedly move.When finding the crack deflection ripple, first front and back, circumferential mobile probe 8, after finding out the maximum reflection ripple of crackle, it is adjusted to benchmark wave height 80%, the 6dB that gains again, then respectively along clockwise with counterclockwise rotate scanning frame of the present utility model and probe 8, when the crack deflection wave height all is reduced to 80%, use axial end 6 edges corresponding to the 0 ° groove of color marking pen in rectangular channel 14 dead aheads to make respectively mark twice, as shown in Figure 5.Then 8 the anglec of rotation of just can determining when mark being aimed at the scale mark on scanning frame of the present utility model to pop one's head in utilizes following formula to calculate the circumferential lengths of crackle at last.
Lab=R×θ
In formula: the circumferential lengths of Lab-crackle, mm;
The axle radius of R-cracks, mm;
θ-probe rotation angle, radian.
The axletree reference block in kind of using the utility model to survey two kinds of vehicles is bumped into some ARTIFICIAL CRACK of section, with its detection accuracy of this contrast verification.
The contrast verification of table 1 crackle maximum reflection echo
Use the utility model to measure many ARTIFICIAL CRACK in the axletree reference block in kind of two kinds of vehicles, verify with this error range of measuring ARTIFICIAL CRACK length.
Table 2 is measured the contrast verification of crack length
Data from table 1 and table 2 as seen, use the utility model can find better maximum reflection ripple and the measured length of circumferential crack, detection efficiency and accuracy have effectively been improved, therefore very practical and feasibility in the small angle longitudinal wave flaw detection process of axletree.
Claims (3)
1. railway locomotive axletree small angle longitudinal wave flaw detection scanning frame, it is characterized in that: be provided with a location round pin (13) concentric with scanning frame fixed head (11) on scanning frame fixed head (11), be provided with a rectangular channel (14) on scanning frame fixed head (11).
2. railway locomotive axletree small angle longitudinal wave according to claim 1 flaw detection scanning frame, it is characterized in that: described rectangular channel (14) is located on the scanning frame fixed head (11) of the opposite one side of locating round pin (13), and the long limit of rectangular channel (14) is less than the radius of scanning frame fixed head (11).
3. railway locomotive axletree small angle longitudinal wave according to claim 1 flaw detection scanning frame, it is characterized in that: the circumference of described scanning frame fixed head (11) is provided with angle groove (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683222 CN202974957U (en) | 2012-12-12 | 2012-12-12 | Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683222 CN202974957U (en) | 2012-12-12 | 2012-12-12 | Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974957U true CN202974957U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683222 Expired - Fee Related CN202974957U (en) | 2012-12-12 | 2012-12-12 | Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle |
Country Status (1)
| Country | Link |
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| CN (1) | CN202974957U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278564A (en) * | 2013-06-06 | 2013-09-04 | 吴来政 | Method for flaw detection of axle body by axle end surface ultrasonic small-angle longitudinal wave |
| CN103293230A (en) * | 2013-06-06 | 2013-09-11 | 吴来政 | Method of ultrasonic flaw detection on whole shaft by using multi-angle combined probes on end surface of axle shaft |
| CN103675101A (en) * | 2013-12-24 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Ultrasound flaw detection method, device and system for intercity train solid wheel pair with gear box |
| CN103868997A (en) * | 2012-12-12 | 2014-06-18 | 南车洛阳机车有限公司 | Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle |
-
2012
- 2012-12-12 CN CN 201220683222 patent/CN202974957U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868997A (en) * | 2012-12-12 | 2014-06-18 | 南车洛阳机车有限公司 | Small-angle longitudinal wave flaw detection scanning rack for railway locomotive axle |
| CN103278564A (en) * | 2013-06-06 | 2013-09-04 | 吴来政 | Method for flaw detection of axle body by axle end surface ultrasonic small-angle longitudinal wave |
| CN103293230A (en) * | 2013-06-06 | 2013-09-11 | 吴来政 | Method of ultrasonic flaw detection on whole shaft by using multi-angle combined probes on end surface of axle shaft |
| CN103278564B (en) * | 2013-06-06 | 2015-07-08 | 吴来政 | Method for flaw detection of axle body by axle end surface ultrasonic small-angle longitudinal wave |
| CN103293230B (en) * | 2013-06-06 | 2015-07-15 | 吴来政 | Method of ultrasonic flaw detection on whole shaft by using multi-angle combined probes on end surface of axle shaft |
| CN103675101A (en) * | 2013-12-24 | 2014-03-26 | 南车青岛四方机车车辆股份有限公司 | Ultrasound flaw detection method, device and system for intercity train solid wheel pair with gear box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 441105 No. 8, iron road, Xiangzhou District, Hubei, Xiangyang Patentee after: CRRC LUOYANG CO., LTD. Address before: 441105 Xiangfan province Hubei City Xiangzhou District Road No. 8 steel Patentee before: CSR Luoyang Locomotive Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191212 |