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Automatic scanner for transverse crack

A technology for transverse cracks and scanners, which is applied in instruments, scientific instruments, and the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., and can solve problems such as the inability to implement automatic scanning and the inability to form and record TOFD images

Active Publication Date: 2019-07-16
ERZHONG GROUP ZHANJIANG HEAVY EQUIP FACTORYCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is also a parallel scanning method in the prior art, see for details figure 2 , this scanning method moves laterally along the weld, and is generally used for local signal analysis when the defect signal is known. It is impossible to form a TOFD image recording the longitudinal position of the weld during the overall inspection of the weld, and it is also unable to implement automatic scanning.

Method used

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  • Automatic scanner for transverse crack
  • Automatic scanner for transverse crack
  • Automatic scanner for transverse crack

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as image 3 and 4 As shown, the embodiment of the present invention provides an automatic scanner for transverse cracks, including an automatic crawling unit 1 and a scanning unit;

[0029] Since the automatic crawling unit 1 in the present invention is used to drive the scanning unit to crawl, its specific structure is not the invention point of the present invention, so its structure will not be described in detail and limited in the present invention, as long as it can realize automatic crawling All automatic crawlers are applicable to the automatic scanner for transverse cracks of the present invention, which can be purchased directly from the market;

[0030] The scanning unit includes a support frame 2, at least four roller assemblies 3, a probe 4 and an encoder 5;

[0031] The support frame 2 includes a first cross bar 201 and a second cross bar 202 parallel to each other, a connecting rod 203 is arranged between the first cross bar 201 and the second cros...

Embodiment 2

[0040] For the difference between the embodiment of the present invention and the embodiment is:

[0041] The top of the connecting block 302 is also provided with a second positioning hole and a second positioning groove, the second positioning hole has the same structure as the first positioning hole, and is symmetrically arranged on both sides of the protrusion; The second positioning groove has the same structure as the second positioning groove, and is symmetrically arranged on both sides of the protrusion. Preferably, the center point of the positioning contour at the end of the first positioning groove away from the first positioning hole is the same as The central angle formed between the center points of the first positioning holes is less than 180°.

Embodiment 3

[0043] In order to realize the climbing function, a connecting piece 6 is provided between the automatic crawling unit 1 and the scanning unit, and the connecting piece 6 includes a shell 601 with two ends open, a first rotating shaft 602 and a second rotating shaft 603, the first rotating shaft Both the first rotating shaft 602 and the second rotating shaft 603 are connected in rotation with the casing 601 , and the first rotating shaft 602 is also connected with the automatic crawling unit 1 , and the second rotating shaft 603 is also connected with the scanning unit.

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Abstract

The invention discloses an automatic scanner for a transverse crack. The automatic scanner comprises an automatic crawling unit and a scanning unit in connection; the scanning unit comprises a supportframe, at least roller modules and a probe; the support frame comprises a first cross bar and a second cross bar in mutual parallel; a connecting rod is arranged between the first cross bar and the second cross bar; a first through hole and a second through hole are formed at each of two ends of each of the first cross bar and the second cross bar, and a positioning rod is arranged in each secondthrough hole; each roller module comprises a roller and a connecting block, and the roller is arranged at the bottom of the connecting block, a bulge, a first positioning hole and a first positioninggroove are arranged at the top of the connecting block; the bulge is in threaded connection with the corresponding first through hole on the first cross bar or the second cross bar, each first positioning hole and each first positioning groove are located on the same circumference, and the radial size of each of the first positioning hole and the first positioning groove is matched with that of the positioning rod; and the probe is arranged on the connecting rod. The automatic scanning on the transverse crack can be realized, and the detection precision is high.

Description

technical field [0001] The invention belongs to the technical field of automatic scanners, in particular to an automatic scanner for transverse cracks. Background technique [0002] Time Of Flight Diffraction (TOFD) detection technology is one of the latest ultrasonic detection technologies. It is characterized by the use of ultrasonic diffraction, reflection and other signals to achieve the purpose of detection. The quantification of defects not only depends on the amplitude of the signal, The detection sensitivity is relatively high. At the same time, the detection technology combines advanced data processing and image processing technology, capable of real-time imaging, clear and intuitive defect analysis, accurate and reliable detection data that can be recorded, and has some advantages of radiographic flaw detection. [0003] The current TOFD inspection is mostly based on non-parallel scanning along the direction of the weld, see figure 1 , this scanning method can co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/06G01N29/22G01N29/265
CPCG01N29/06G01N29/225G01N29/265G01N2291/0289G01N2291/2675
Inventor 潘晓栋郭仕建
Owner ERZHONG GROUP ZHANJIANG HEAVY EQUIP FACTORYCO
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