CN208350718U - Portable ultraphonic guided wave phased array bolt detection system - Google Patents
Portable ultraphonic guided wave phased array bolt detection system Download PDFInfo
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- CN208350718U CN208350718U CN201820783924.7U CN201820783924U CN208350718U CN 208350718 U CN208350718 U CN 208350718U CN 201820783924 U CN201820783924 U CN 201820783924U CN 208350718 U CN208350718 U CN 208350718U
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Abstract
The utility model relates to portable ultraphonic guided wave phased array bolt detection systems, it pops one's head in including supersonic guide-wave phased array bolt detector, bolt, bolt to be measured includes screw rod and bolt end, it is characterized by: the supersonic guide-wave bolt detector includes computer, signal acquisition module, display module, the bolt probe is placed in the bolt end and extraction wire of bolt fastener to be measured, and the conducting wire of extraction is connected with supersonic guide-wave bolt detector.Supersonic guide-wave phased array bolt detector fitted bolt probe, ultrasonic phased array technology and piezoelectricity guided wave technology are combined, and cylinder guided wave signals are generated inside bolt fastener to be measured and carry out image checking.The utility model can be realized by some detection to the total of in-service bolt fastener carry out disposably, rapidly and efficiently detection is imaged, image is swept including A, B sweeps image and establishes 3D defect model, and positioning can also be carried out to bolt fastener internal flaw and data save.
Description
Technical field
The utility model relates to a kind of bolt defects detection instruments, can especially carry out to in-service bolt of long stem fastener
The disposable Real-time Imaging of defect.Belong to Ultrasonic Nondestructive technical field.
Background technique
Bolt is one of the standard fitting in industrial equipment, as the connector of various equipment, has construction is simple, stress
Performance is good, replaceable, endurance and the advantages that will not loosen under dynamic load function, often in complicated stress, height
It works under the various bad working environments such as warm high pressure, periodic vibration, it is easy to generate fatigue crack.In order to ensure industrial production is safe,
We must be as early as possible discovery crack defect, to replace in time.Therefore more crackle defect how is detected, faster more
Convenient discovery defect, is always the priority and difficulty of bolt detection.
For bolt ultrasound detection, the mainstream detected at present still uses conventional normal probe and tilting probe
Detection.The detection of the defects of for bolt underbead crack generallys use conventional Ultrasound equipment and is equipped with longitudinal wave probe, 8.5 ° of refraction angle
Or shear wave probe, K value are that 1.7 such two kinds of combinations carry out ultrasound detection, need to replace probe in the detection process back and forth, examine
Survey process is cumbersome, takes a long time, and does not see in the market there is the mature special detector for crack in bolt.
The testing result that conventional ultrasound detection equipment is presented when detecting to bolt fastener inside is waveform signal
It has been shown that, includes a large amount of structural return, flaw echo and noise signal in the waveform signal, larger to the judgement of testing result
Ground depends on the long-term work experience of testing staff, without more intuitive effective testing result display mode.
Conventional ultrasound detection equipment generally required when being detected to bolt fastener inside 360 ° rotation or back and forth
Mobile ultrasonic probe detects to complete 100% circumferential direction, and the operating method of the detection technique reduces detection efficiency, greatly
Increase the detection duration.
Bolt fastener substantial amounts, the bolt fastener quantity of detection cycle domestic demand detection are adopted up to thousands of
With conventional ultrasound list probe direct projection longitudinal wave detection mode low efficiency, therefore often using inspect by random samples by the way of carry out security evaluation,
The security risk of bolt can not fully and effectively be controlled.
Bolt fastener majority geometry is slim-lined construction, using ultrasonic single probe direct projection longitudinal wave detection when side wall it is dry
Situations such as it is strong to relate to effect, sensitivity is caused to decline, missing inspection easily occurs, causes security risk.
Only one end face of the in-service bolt such as fan blade, buried anchor pole is exposed, and passes through conventional Ultrasound detection method
When detection, the other end testing result sensitivity for being embedded in the inside is low.Whole to bolt fastener can not be had using safe
Effect assessment.
The current in-service bolt fastener length used passes through in-service up to 1200mm, existing conventional Ultrasound detection means
When bolt one end is detected, the energy of ultrasonic wave is easy to produce significant attenuation, can not effectively be detected.
Summary of the invention
To solve the above problems, the utility model provides a set of portable ultraphonic guided wave phased array bolt detection system,
Ultrasonic phased array technology of the detection system based on controllable focusing distance and it can disposably cover the super of entire waveguiding structure
Guided Waves detection technique combines, to realize that the in-service bolt fastener to different size carries out disposable detection imaging.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
Portable ultraphonic guided wave phased array bolt detection system, including supersonic guide-wave phased array bolt detector, bolt are visited
Head, bolt to be measured include screw rod and bolt end, it is characterised in that: the supersonic guide-wave bolt detector includes computer, letter
Number acquisition module, display module, the bolt probe are placed in the bolt end and extraction wire of bolt fastener to be measured, draw
Conducting wire be connected with supersonic guide-wave bolt detector.
The bolt to be measured is bolt fastener；And the dimensions of bolt fastener should meet the requirement for propagating guided wave.
The bolt probe is one-dimensional ring battle array phased array probe, and chip circumferential array forms ring battle array.
The number of wafers of the bolt probe is 64.It, can be in not mobile probe by establishing suitable focusing rule
Under the premise of realize 360 ° of detection in circumferential direction.
The display module includes 24 true colour display screen display screen, USB and Ethernet interface, for testing result display and
Output.
The computer-internal of the supersonic guide-wave phased array bolt detector is built-in a set of for bolt fastener detection
Focusing rule, the rule 64 chip number consecutivelies that bolt pop one's head in that focus are No. 1-64, are divided into one with every 8 chips
Group successively carries out excitation ultrasound wave, and after 1-8 chip starts excitation ultrasound wave, 2-9 chip is one group and is excited, with
This analogizes recycles transmitting ultrasonic signal in a circumferential direction, then this kind focuses rule and do not needing mobile or rotating bolt spy
Head under the premise of, control ultrasonic signal on bolt fastener circumferencial direction 360 ° of covering and formed cylinder guided wave letter
Number；Cylinder guided wave signals in bolt fastener internal communication distance, can the 100% entire bolt fastener of covering structure, reach
To the purpose of disposable full inspection.Cylinder guided wave signals can generate flaw echo, quilt in communication process if encountering internal flaw
Bolt probe receives and is transferred to computer by signal acquisition module；Firing time of the computer by ultrasonic wave, defect
The receiving time of echo and the sound pressure amplitude size of flaw echo, which calculate, to be formed A and sweeps image；Emit ultrasound in joint bolt probe
The present position relationship of wave and the corresponding number chip of reception flaw echo forms B and sweeps image, visual and clear；In conjunction with institute
It selects bolt specification to establish model, forms 3D defect model.
Entire portable ultraphonic guided wave phased array bolt detection system is easy to operate, light-weight, can meet single-person portable
The bolt fastener detection demand used.
Compared to existing bolt fastener detection technique, supersonic guide-wave phased array bolt inspection provided by the utility model
Instrument fitted bolt probe is surveyed, ultrasonic phased array technology and piezoelectricity guided wave technology are combined, it can be inside bolt fastener to be measured
Generate cylinder guided wave signals, and the defect generated according to the cylinder guided wave signals in the bolt fastener internal communication to be measured
Echo-signal, formation B sweeps image and 3D model after carrying out data processing, and retains related A and sweep signal.According to detection imaging knot
Fruit may be implemented to carry out in-service bolt fastener, especially bolt of long stem fastener online reality rapidly and efficiently disposably
When image checking, defect further can also be positioned and be analyzed.Bolt fastener internal flaw can also be carried out
Positioning and data save.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the bolt probe chip array schematic diagram of the utility model.
Fig. 3 is the supersonic guide-wave phased array bolt detector schematic block diagram of the utility model.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, for those of ordinary skill in the art, is not paying creativeness
Other all embodiments obtained, fall within the protection scope of the utility model under the premise of labour.Supersonic guide-wave phased array
Bolt detector, bolt sonde configuration are existing.
As shown in Figure 1 and Figure 2, the utility model includes supersonic guide-wave phased array bolt detector, bolt probe, spiral shell to be measured
Bolt includes screw rod and bolt end, it is characterised in that: the supersonic guide-wave bolt detector includes computer, signal acquisition mould
Block, display module draw as shown in figure 3, bolt probe is placed in the bolt end and extraction wire of bolt fastener to be measured
Conducting wire out is connected with supersonic guide-wave bolt detector.The bolt probe is one-dimensional ring battle array phased array probe, and chip is all
Ring battle array is formed to arrangement.The number of wafers of the bolt probe is 64.By establishing suitable focusing rule, can not move
360 ° in circumferential direction of detection is realized under the premise of dynamic probe.The display module include 24 true colour display screen display screen, USB and
Ethernet interface, display and output for testing result.
Prepare a bolt fastener, carves wound comprising artificial, the wire cutting slot which is depth 0.5-1mm, and
Distance detection end face 200mm.
Measure the diameter and entire length of bolt fastener detection end face.It is selected according to the diameter of bolt fastener to be measured
Corresponding matched one-dimensional ring battle array phased array bolt probe.It should be noted that selected probe diameter should be slightly less than bolt detection to be measured
The diameter 1-2mm of end face, herein under the premise of, detection effect can reach most preferably.
Supersonic guide-wave phased array bolt detector debugging: firstly, according to the length adjustment instrument of bolt fastener to be measured
Detection range, detection range should be greater than bolt fastener length 30-50mm.Secondly, the digital gain of instrument is adjusted to 18dB,
Yield value is adjusted to 40-50dB.
It is uniformly applied in the detection of bolt fastener one end face and spreads ultrasonic wave-coupled agent, one-dimensional ring battle array phased array bolt is popped one's head in
It is placed on and has applied on the bolt fastener for wiping couplant detection end face, keep its coupling good by pressing probe.
The computer-internal of the supersonic guide-wave phased array bolt detector is built-in a set of for bolt fastener detection
Focusing rule, the rule 64 chip number consecutivelies that bolt pop one's head in that focus are No. 1-64, are divided into one with every 8 chips
Group successively carries out excitation ultrasound wave, and after 1-8 chip starts excitation ultrasound wave, 2-9 chip is one group and is excited, with
This analogizes recycles transmitting ultrasonic signal in a circumferential direction, then this kind focuses rule and do not needing mobile or rotating bolt spy
Head under the premise of, control ultrasonic signal on bolt fastener circumferencial direction 360 ° of covering and formed cylinder guided wave letter
Number；Cylinder guided wave signals in bolt fastener internal communication distance, can the 100% entire bolt fastener of covering structure, reach
To the purpose of disposable full inspection.Cylinder guided wave signals can generate flaw echo, quilt in communication process if encountering internal flaw
Bolt probe receives and is transferred to computer by signal acquisition module；Firing time of the computer by ultrasonic wave, defect
The receiving time of echo and the sound pressure amplitude size of flaw echo, which calculate, to be formed A and sweeps image；Emit ultrasound in joint bolt probe
The present position relationship of wave and the corresponding number chip of reception flaw echo forms B and sweeps image, visual and clear；In conjunction with institute
It selects bolt specification to establish model, forms 3D defect model.Entire portable ultraphonic guided wave phased array bolt detection system operation letter
It is single, light-weight, the bolt fastener detection demand that single-person portable uses can be met.
Since excitation ultrasound wave is formed by beginning wave signal and to be formed by bottom wave signal be solid for bolt fastener bottom
There is waveform, then can sweep beginning wave and bolt fastener bottom on image by observing supersonic guide-wave phased array bolt detector screen B
Region between echo-signal, if there are abnormal signals to judge defect.If being no different regular signal, which shows this
Bolt fastener is qualified；If there is abnormal signal, signal is swept by corresponding A shown by mobile instrument data analytical line to measure
The position of defect and relevant parameter.
After detection, the dynamic map and relevant parameter should be saved, and automatically generate examining report.
Claims (4)
1. portable ultraphonic guided wave phased array bolt detection system, including supersonic guide-wave phased array bolt detector, bolt probe,
Bolt to be measured includes screw rod and bolt end, it is characterised in that: the supersonic guide-wave bolt detector includes that computer, signal are adopted
Collect module, display module, the bolt probe is placed in the bolt end and extraction wire of bolt fastener to be measured, and extraction is led
Line is connected with supersonic guide-wave bolt detector；The described bolt probe is one-dimensional ring battle array phased array probe, and chip circumferential array
Form ring battle array.
2. portable ultraphonic guided wave phased array bolt detection system according to claim 1, it is characterised in that: described to be measured
Bolt is bolt fastener；And the dimensions of bolt fastener should meet the requirement for propagating guided wave.
3. portable ultraphonic guided wave phased array bolt detection system according to claim 1, it is characterised in that: the spiral shell
The number of wafers of bolt probe is 64, focuses rule by establishing, can realize in circumferential direction under the premise of not mobile probe
360 ° of detection.
4. portable ultraphonic guided wave phased array bolt detection system according to claim 1, it is characterised in that: the display
Module includes 24 true colour display screen display screen, USB and Ethernet interface, display and output for testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783924.7U CN208350718U (en) | 2018-05-24 | 2018-05-24 | Portable ultraphonic guided wave phased array bolt detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783924.7U CN208350718U (en) | 2018-05-24 | 2018-05-24 | Portable ultraphonic guided wave phased array bolt detection system |
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| CN208350718U true CN208350718U (en) | 2019-01-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931579A (en) * | 2018-05-24 | 2018-12-04 | 武汉中科创新技术股份有限公司 | Portable ultraphonic guided wave phased array bolt detection system |
| CN111220713A (en) * | 2020-04-07 | 2020-06-02 | 国电科学技术研究院有限公司 | Intelligent monitoring and detecting system and method for defects and stress of in-service wind power bolts |
| CN113640301A (en) * | 2021-08-03 | 2021-11-12 | 江苏省特种设备安全监督检验研究院 | Bolt detection method for special equipment |
-
2018
- 2018-05-24 CN CN201820783924.7U patent/CN208350718U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931579A (en) * | 2018-05-24 | 2018-12-04 | 武汉中科创新技术股份有限公司 | Portable ultraphonic guided wave phased array bolt detection system |
| CN111220713A (en) * | 2020-04-07 | 2020-06-02 | 国电科学技术研究院有限公司 | Intelligent monitoring and detecting system and method for defects and stress of in-service wind power bolts |
| CN111220713B (en) * | 2020-04-07 | 2024-03-29 | 国家能源集团科学技术研究院有限公司 | Intelligent supervision and detection system and method for defects and stress of in-service wind power bolts |
| CN113640301A (en) * | 2021-08-03 | 2021-11-12 | 江苏省特种设备安全监督检验研究院 | Bolt detection method for special equipment |
| CN113640301B (en) * | 2021-08-03 | 2024-02-09 | 江苏省特种设备安全监督检验研究院 | Bolt detection method for special equipment |
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