CN108709938B - Outdoor portable ultrasonic infrared excitation device - Google Patents
Outdoor portable ultrasonic infrared excitation device Download PDFInfo
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- CN108709938B CN108709938B CN201810481194.XA CN201810481194A CN108709938B CN 108709938 B CN108709938 B CN 108709938B CN 201810481194 A CN201810481194 A CN 201810481194A CN 108709938 B CN108709938 B CN 108709938B
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- telescopic rod
- excitation device
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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
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/72—Investigating presence of flaws
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- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses an outdoor portable ultrasonic infrared excitation device, which comprises an installation platform, wherein a plurality of telescopic supporting rods are arranged on the installation platform; a hanging telescopic rod is fixed in the middle of the mounting platform, and an infrared thermal imager is fixed on the hanging telescopic rod; a vertical sliding rail is further fixed in the middle of the mounting platform and arranged in parallel with the hanging telescopic rod, a clamp is arranged on the vertical sliding rail, the position of the clamp on the vertical sliding rail is adjustable, and the excitation probe is fixed on the clamp. The invention is simple and portable, is not restricted by indoor conditions, has the advantages of adjustable contact pressure, adjustable shooting position and angle, adjustable excitation position of the ultrasonic excitation probe and the like, can ensure the close fit with a detected sample, and increases the accuracy of an experimental result.
Description
Technical Field
The invention relates to the field of large-scale steel structure fatigue crack damage detection based on an ultrasonic infrared thermal wave detection technology, in particular to a portable ultrasonic infrared excitation device used outdoors.
Background
The steel structure has good physical properties such as high strength, uniform material quality, good plasticity and toughness and the like, so the steel structure is widely applied to the fields of aerospace, machinery, bridges, buildings, ocean engineering, automobile structures and the like. However, due to the existence of alternating load, concentrated stress and welding defects, a large-scale steel structure inevitably has corresponding fatigue crack damage in the actual use process, wherein the most common and dangerous fatigue cracks of the welding seam are divided into surface cracks and internal cracks according to different positions of the cracks in the welding seam, the surface cracks are the most common and most harmful defects and mostly occur in key parts in the engineering field, and once a safety accident occurs, the inestimable loss and consequences are caused. Therefore, the realization of the comprehensive detection of the fatigue crack damage of the large steel structure by using a rapid and efficient nondestructive detection technology is a big trend of the current nondestructive detection research.
The ultrasonic infrared thermal wave technology is a nondestructive testing method which takes ultrasonic energy as a thermal excitation source to cause the damaged part of the surface or the shallow surface of the material to generate heat, and simultaneously uses an infrared thermal imager to remove an infrared image, thereby having better testing effect on the joint defects of the surface, the shallow surface and the internal cracks, the layering and other cross sections of the material. The ultrasonic infrared thermal wave detection device mainly comprises an ultrasonic excitation probe, a thermal infrared imager and a detection sample. The ultrasonic excitation effect is of great importance to the ultrasonic infrared detection technology, and the quality of the effect can be directly detected to the left and the right of the reliability of the structure. In the ultrasonic excitation test, the contact pressure between the ultrasonic excitation probe and the detection sample, the contact mode between the ultrasonic excitation probe and the detection sample, the excitation position, the shooting position of the thermal infrared imager, other parameters and the like have great influence on the excitation effect. The invention relates to an outdoor portable ultrasonic infrared excitation device, which can ensure that the fixed position of the device can be adjusted under outdoor conditions, an ultrasonic excitation probe and an excitation position can be adjusted in the detection process, the contact pressure between the probe and a sample can be controlled, and the shooting angle and the position of an infrared camera can be adjusted.
Disclosure of Invention
The invention aims to detect damage of a composite material based on the prior art and provides an outdoor portable ultrasonic infrared excitation device.
In order to solve the above-mentioned object, the present invention provides an outdoor portable ultrasonic infrared excitation device, which comprises a mounting platform, wherein a plurality of telescopic supporting rods are arranged on the mounting platform;
a hanging telescopic rod is fixed in the middle of the mounting platform, and an infrared thermal imager is fixed on the hanging telescopic rod;
a vertical sliding rail is further fixed in the middle of the mounting platform and arranged in parallel with the hanging telescopic rod, a clamp is arranged on the vertical sliding rail, the position of the clamp on the vertical sliding rail is adjustable, and the excitation probe is fixed on the clamp.
According to the technical scheme, the clamp comprises a clamp sliding table, a clamp fixing knob, a pre-tightening mechanism and a sliding table tightening knob, the clamp sliding table is fixed on the vertical sliding rail through the sliding table tightening knob, and the clamp is fixed on the clamp sliding table through the clamp fixing knob; the pre-tightening mechanism is arranged at the end part of the clamp and used for adjusting the pre-tightening force of the excitation probe.
According to the technical scheme, the end part of the hanging telescopic rod is provided with the ball head, the ball head is provided with the ball head support at the periphery, the ball head support is provided with the fixed support, and the thermal infrared imager is fixed on the fixed support.
According to the technical scheme, the end parts of the plurality of telescopic supporting rods are provided with the suckers.
According to the technical scheme, the sucker is a sucker with a buffering and adsorbing air cushion.
According to the technical scheme, the mounting platform is provided with a plurality of horizontal sliding rails, and each telescopic supporting rod can move along the horizontal sliding rails and can be fixed at any position of the horizontal sliding rails.
Connect above-mentioned technical scheme, flexible bracing piece includes horizontal slip table, bracing piece and telescopic link, horizontal slip table arranges in on the horizontal slide rail, the bracing piece is fixed on the horizontal slip table, the bracing piece with the telescopic link passes through the bracing piece and tightly decides the knob fixed.
According to the technical scheme, the hanging telescopic rod penetrates through the mounting platform, and a sleeve fastening knob are arranged on the hanging telescopic rod above the mounting platform.
According to the technical scheme, the mounting platform is a circular platform, a small circular platform is arranged at the circle center of the circular platform, and the suspension telescopic rod and the vertical sliding rail are fixed on the small circular platform.
According to the technical scheme, the mounting platform is a circular table, the horizontal sliding rails are arranged along the radius direction, and the included angle between every two adjacent horizontal sliding rails is equal.
The invention has the following beneficial effects: according to the invention, the thermal infrared imager is fixed through the telescopic supporting rod, the fixed position of the ultrasonic infrared excitation device can be flexibly adjusted, the height between the ultrasonic infrared excitation device and the surface of the structure is finely adjusted through the vertical sliding rail, and good laminating effect and stability are ensured;
furthermore, the horizontal slide rail, the telescopic support rod and the rod bottom sucker on the mounting platform can ensure that the whole device can be stably fixed on the surface of a large-scale steel structure, the height and the fixed position of the device can be flexibly adjusted, and a certain cushioning effect is achieved;
furthermore, the pre-tightening force mechanism can ensure the accuracy of the applied contact pressure through the feedback result of the pressure sensor;
furthermore, the hanging telescopic rod and the ball head support can flexibly adjust the shooting position and the shooting angle of the thermal infrared imager, and the field shooting effect is guaranteed.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural diagram of an ultrasonic infrared excitation device according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a clamp, a sliding table, a guide rail and an early warning force device of the ultrasonic excitation device according to the embodiment of the invention;
fig. 3 is a schematic structural view of a suspension telescopic rod, a ball head support, a ball head and an infrared thermal imager fixing support of the adjustable infrared thermal imager fixing device according to the embodiment of the invention.
In the figure, 1-sucker, 2-sucker fixing bolt, 3-telescopic supporting rod, 4-excitation probe, 5-supporting rod fastening knob, 6-excitation probe clamp, 7-pre-tightening mechanism, 8-fixed supporting rod, 9-horizontal sliding table, 10-sleeve fastening knob, 11-mounting platform, 12-horizontal sliding rail, 13-suspension telescopic rod, 14-vertical sliding rail, 15-thermal infrared imager, 16-bulb support, 17-clamp sliding table, 18-sliding table fastening knob, 19-clamp fixing knob, 20-thermal infrared imager fixing support
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the outdoor portable ultrasonic infrared excitation device of the present invention comprises a mounting platform 11, wherein a plurality of telescopic support rods 3 are arranged on the mounting platform 11;
a hanging telescopic rod 13 is fixed in the middle of the mounting platform, and an infrared thermal imager 15 is fixed on the hanging telescopic rod;
a vertical slide rail 14 is further fixed in the middle of the mounting platform and is arranged in parallel with the hanging telescopic rod 13, a clamp 6 is arranged on the vertical slide rail, the position of the clamp on the vertical slide rail is adjustable, and the excitation probe 4 is fixed on the clamp.
As shown in fig. 2, the clamp includes a clamp sliding table 17, a clamp fixing knob 19, a pre-tightening force mechanism 7 and a sliding table tightening knob 18, the clamp sliding table is fixed on the vertical sliding rail through the sliding table tightening knob, and the clamp is fixed on the clamp sliding table through the clamp fixing knob; the pretightening force mechanism 7 is arranged at the end part of the clamp and used for adjusting the pretightening force of the excitation probe.
As shown in fig. 3, a ball head is arranged at the end of the hanging telescopic rod, a ball head support 16 is arranged at the periphery of the ball head, a fixed support 20 is arranged on the ball head support, and the thermal infrared imager is fixed on the fixed support.
Furthermore, the end parts of the plurality of telescopic supporting rods are provided with suckers 1.
Further, the sucking disc is a sucking disc with a buffering and adsorbing air cushion. The buffer adsorption air cushion has a buffer function and prevents vibration in the ultrasonic excitation process.
Furthermore, a plurality of horizontal sliding rails 12 are arranged on the mounting platform, and each telescopic supporting rod can move along the horizontal sliding rail and can be fixed at any position of the horizontal sliding rail.
Further, flexible bracing piece includes horizontal slip table 9, bracing piece and telescopic link 3, horizontal slip table arranges in on the horizontal slide rail, the bracing piece is fixed on the horizontal slip table, the bracing piece with the telescopic link passes through the bracing piece and tightly decides knob 5 fixedly.
Furthermore, the hanging telescopic rod penetrates through the mounting platform, and a sleeve fastening knob 10 are arranged on the hanging telescopic rod above the mounting platform.
Further, the mounting platform is a circular platform, a small circular platform is arranged at the circle center of the circular platform, and the hanging telescopic rod and the vertical sliding rail are fixed on the small circular platform.
Further, the mounting platform is a circular table, the horizontal slide rails are arranged along the radius direction, and the included angle between every two adjacent horizontal slide rails is equal.
When detecting the damage, as shown in figure 1, adsorb whole device on being surveyed the structure through sucking disc 1, adjust the tight length of deciding telescopic support rod 3 of knob 5 adjustment of bracing piece, remove horizontal slip table 9 and change the position of fixed support rod 8 to reach best fixed effect.
On the ultrasonic excitation device, the height and the rotation angle of the suspension telescopic rod 13 are adjusted by an adjusting sleeve fastening knob 10 according to the surface condition of the structure to be detected. The height of the excitation probe is adjusted by moving the position of the clamp slide 17 on the vertical slide 14 by the slide adjustment knob 18.
The pre-tightening force adjusting mechanism 7 changes the pre-warning force by rotating the pre-tightening force adjusting knob, the pre-tightening force adjusting mechanism 7 can be provided with a pressure sensor, the pressure sensor can be arranged between the top of the pre-tightening force adjusting knob and the excitation probe, the optimal pre-tightening force is obtained through the pressure sensor, and at the moment, the clamp fixing knob 19 is screwed to complete the fixing of the excitation probe.
On the ultrasonic excitation device, the height and the rotation angle of the suspension telescopic rod 13 are adjusted by an adjusting sleeve fastening knob 10 according to the surface condition of the structure to be detected. The height of the excitation probe 4 is adjusted by moving the position of the clamp slide 18 on the vertical slide 14 by means of the slide setting knob 17.
On the adjustable thermal infrared imager fixing device, the adjusting sleeve tightly fixes the knob to adjust the height and the rotating angle of the hanging telescopic rod according to the shooting requirements. The infrared thermal imager fixing support 20 is rotated to change the shooting angle of the infrared thermal imager 15, the shooting direction of the infrared thermal imager is changed by changing the position of the ball head in the ball head support 16, and the best shooting effect is further achieved.
In conclusion, the whole device is simple and portable and is not restricted by indoor conditions. The height and the fixed position of the device can be flexibly adjusted by the mounting platform through the telescopic supporting rod and the horizontal sliding rail rod; the vertical slide rail and the pre-tightening force mechanism can ensure good fitting effect of the ultrasonic excitation probe and the structure surface and can accurately apply pre-warning force; hang telescopic link and bulb support and can guarantee the shooting effect through adjusting shooting position and angle. . The device has many advantages in the aspect of large-scale steel structure fatigue crack damage detection.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (8)
1. An outdoor portable ultrasonic infrared excitation device is characterized by comprising an installation platform, wherein a plurality of telescopic supporting rods are arranged on the installation platform, and suckers are arranged at the end parts of the plurality of telescopic supporting rods;
a hanging telescopic rod is fixed in the middle of the mounting platform, and an infrared thermal imager is fixed on the hanging telescopic rod;
a vertical slide rail is further fixed in the middle of the mounting platform and arranged in parallel with the suspension telescopic rod, a clamp is arranged on the vertical slide rail, the position of the clamp on the vertical slide rail is adjustable, and the excitation probe is fixed on the clamp;
the mounting platform is provided with a plurality of horizontal sliding rails, and each telescopic supporting rod can move along the horizontal sliding rails and can be fixed at any position of the horizontal sliding rails.
2. The outdoor portable ultrasonic infrared excitation device according to claim 1, wherein the clamp comprises a clamp sliding table, a clamp fixing knob, a pre-tightening mechanism and a sliding table tightening knob, the clamp sliding table is fixed on the vertical slide rail through the sliding table tightening knob, and the clamp is fixed on the clamp sliding table through the clamp fixing knob; the pre-tightening mechanism is arranged at the end part of the clamp and used for adjusting the pre-tightening force of the excitation probe.
3. The outdoor portable ultrasonic infrared excitation device as claimed in claim 1, wherein the end of the hanging telescopic rod is provided with a ball head, a ball head support is arranged on the periphery of the ball head, a fixed support is arranged on the ball head support, and the thermal infrared imager is fixed on the fixed support.
4. The outdoor portable ultrasonic infrared excitation device as set forth in claim 1, wherein said suction cup is a suction cup with a cushion suction pad.
5. The outdoor portable ultrasonic infrared excitation device of claim 1, characterized in that the telescopic supporting rod comprises a horizontal sliding table, a supporting rod and a telescopic rod, the horizontal sliding table is arranged on the horizontal sliding rail, the supporting rod is fixed on the horizontal sliding table, and the supporting rod and the telescopic rod are fixed by a supporting rod fastening knob.
6. The outdoor portable ultrasonic infrared excitation device as claimed in claim 1, wherein the hanging telescopic rod passes through the mounting platform, and a sleeve fastening knob are arranged on the hanging telescopic rod above the mounting platform.
7. The outdoor portable ultrasonic infrared excitation device as claimed in claim 1, wherein the mounting platform is a circular platform, a small circular platform is arranged at the center of the circular platform, and the suspension telescopic rod and the vertical slide rail are both fixed on the small circular platform.
8. The outdoor portable ultrasonic infrared excitation device as claimed in claim 1, wherein the mounting platform is a circular table, the horizontal sliding rails are arranged along a radius direction, and an included angle between two adjacent horizontal sliding rails is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481194.XA CN108709938B (en) | 2018-05-18 | 2018-05-18 | Outdoor portable ultrasonic infrared excitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810481194.XA CN108709938B (en) | 2018-05-18 | 2018-05-18 | Outdoor portable ultrasonic infrared excitation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709938A CN108709938A (en) | 2018-10-26 |
| CN108709938B true CN108709938B (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810481194.XA Expired - Fee Related CN108709938B (en) | 2018-05-18 | 2018-05-18 | Outdoor portable ultrasonic infrared excitation device |
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| CN (1) | CN108709938B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161129A (en) * | 2019-05-27 | 2019-08-23 | 神华铁路货车运输有限责任公司 | Thermal wave imaging system and ultrasonic action thermal wave detection device is motivated by ultrasound |
| CN117805179B (en) * | 2024-02-28 | 2024-06-18 | 华中科技大学 | Be used for nondestructive internal structure detection device of bridge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203037603U (en) * | 2013-01-07 | 2013-07-03 | 中国人民解放军第二炮兵工程大学 | Fixing device of ultrasound gun for ultrasonic infrared detection |
| CN103926253A (en) * | 2014-04-22 | 2014-07-16 | 哈尔滨工业大学 | Linear frequency modulation ultrasonic excitation-based infrared thermal wave nondestructive testing method and system |
| CN203777069U (en) * | 2014-04-11 | 2014-08-20 | 四川大学华西医院 | Medical ultrasonic probe suspension device and intelligent ultrasonic probe storage cabinet |
| CN204287117U (en) * | 2014-11-27 | 2015-04-22 | 国家电网公司 | A kind of phased array probe pick-up unit detected for pipe interior welding joint |
| CN206648675U (en) * | 2017-03-13 | 2017-11-17 | 李宪同 | A kind of detecting instrument support frame |
-
2018
- 2018-05-18 CN CN201810481194.XA patent/CN108709938B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203037603U (en) * | 2013-01-07 | 2013-07-03 | 中国人民解放军第二炮兵工程大学 | Fixing device of ultrasound gun for ultrasonic infrared detection |
| CN203777069U (en) * | 2014-04-11 | 2014-08-20 | 四川大学华西医院 | Medical ultrasonic probe suspension device and intelligent ultrasonic probe storage cabinet |
| CN103926253A (en) * | 2014-04-22 | 2014-07-16 | 哈尔滨工业大学 | Linear frequency modulation ultrasonic excitation-based infrared thermal wave nondestructive testing method and system |
| CN204287117U (en) * | 2014-11-27 | 2015-04-22 | 国家电网公司 | A kind of phased array probe pick-up unit detected for pipe interior welding joint |
| CN206648675U (en) * | 2017-03-13 | 2017-11-17 | 李宪同 | A kind of detecting instrument support frame |
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| CN108709938A (en) | 2018-10-26 |
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Granted publication date: 20200505 Termination date: 20210518 |