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An automatic scanning device for transverse cracks

A transverse crack and scanning device technology, which is applied to measuring devices, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, and using sound waves/ultrasonic waves/infrasonic waves for material analysis, etc., can solve the problem of inability to form and record TOFD images and implement automatic scanning And other issues

Active Publication Date: 2021-08-24
ERZHONG GROUP ZHANJIANG HEAVY EQUIP FACTORYCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 that records 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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  • An automatic scanning device for transverse cracks
  • An automatic scanning device for transverse cracks
  • An automatic scanning device for transverse cracks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as image 3 with 4 As shown, the embodiment of the present invention provides an automatic scanning device for transverse cracks, including an automatic crawling unit 1, a scanning unit and a water supply coupling unit;

[0032] 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;

[0033] The scanning unit is connected to the automatic crawling unit 1, which includes a support frame 2, at least four roller assemblies 3, a probe 4 assembly and an encoder 5;

[0034] The support frame 2 includes a first cross bar 201 and a second cross bar 202 paralle...

Embodiment 2

[0042] Such as Figure 5 As shown, the difference between the embodiment of the present invention and embodiment 1 is:

[0043] Both ends of the first crossbar 201 and the second crossbar 202 are provided with a first through hole and a second through hole, and a positioning rod 204 is arranged in the second through hole; the roller assembly 3 includes a roller 301 and the connection block 302, the roller 301 is arranged at the bottom of the connection block 302, in a specific embodiment of the present invention, the connection block 302 is provided with a groove, and the roller 301 is installed in the groove In the groove, in other implementations of the embodiment of the present invention, other positional relationships between the connecting block 302 and the roller 301 can also be used, since it is not the core invention of the present invention, therefore, no specific limitation is made; The top of the connecting block 302 is provided with a protrusion 3021, a first posi...

Embodiment 3

[0049] For the difference between the embodiment of the present invention and the embodiment is:

[0050] The top of the connection block 302 is also provided with a second positioning hole (not shown in the figure) and a second positioning groove (not shown in the figure), and the second positioning hole has the same structure as the first positioning hole, And 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 first positioning groove is far away from the first positioning groove. The central angle formed between the central point of the positioning contour at the end of a positioning hole and the central point of the first positioning hole is less than 180°.

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Abstract

The invention discloses an automatic scanning device for transverse cracks, which includes an automatic crawling unit, a scanning unit and a water supply coupling unit. The scanning unit includes a support frame, at least four roller assemblies and a probe assembly; the support frame includes parallel first A crossbar and a second crossbar, a connecting rod is arranged between the first crossbar and the second crossbar; the roller assembly is respectively connected to the end of the corresponding first crossbar or the second crossbar; the probe assembly includes a connecting seat , Probe clip and probe, the connecting seat is set on the connecting rod, the probe clip is set on the bottom of the connecting seat, the probe is set on the probe clip, and the probe clip is located on both sides of the probe, and there are respectively a first water outlet and a second water outlet The water supply coupling unit includes a pump, a water separator and several water pipes; the outlet of the pump is connected with the inlet of the water separator, and each outlet of the water separator is connected to the inlet of the first water outlet or the second water outlet through corresponding water pipes connected. The invention can realize automatic scanning for transverse cracks, and has high detection precision.

Description

technical field [0001] The invention belongs to the technical field of automatic scanners, and in particular relates 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 m...

Claims

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Application Information

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Patent Type & Authority Patents(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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