CN212060066U - Scanning device for phased array ultrasonic detection of pipeline weld joint - Google Patents
Scanning device for phased array ultrasonic detection of pipeline weld joint Download PDFInfo
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- CN212060066U CN212060066U CN202020905410.1U CN202020905410U CN212060066U CN 212060066 U CN212060066 U CN 212060066U CN 202020905410 U CN202020905410 U CN 202020905410U CN 212060066 U CN212060066 U CN 212060066U
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Abstract
The utility model discloses a scanning device for phased array ultrasonic detection of pipeline welding seams, which comprises an instrument placing frame and a chain type scanning frame which are connected together through a transmission mechanism; the instrument placing frame comprises a vertical plate, a placing plate fixed at the bottom end of the vertical plate in a hinged mode, and supporting legs fixedly arranged on two sides of the bottom end of the vertical plate. The utility model has compact structure, convenient disassembly and simple operation, can avoid the influence of human factors on the probe pushing track when detecting the circumferential weld of the pipeline, and ensures the detection effect; and can realize phased array check out test set and place stably on the pipeline, prevent that equipment from dropping from the pipeline in the circumferential weld testing process. The utility model is suitable for a use when carrying out the girth weld to heavy-calibre pipeline and detecting for fixed phased array check out test set realizes the removal of probe on pipeline welding seam surface.
Description
Technical Field
The utility model belongs to the technical field of nondestructive test, a phased array ultrasonic testing of heavy-calibre pipeline welding seam is related to, specifically speaking is a sweep and look into device for pipeline welding seam phased array ultrasonic testing.
Background
The pipeline, especially the large-diameter pipe, is widely applied to the fields of petrochemical industry, pressure-bearing equipment, boiler manufacturing and the like as conveying equipment, and in order to ensure that the performance of the pipeline meets the use and safety requirements, the whole pipeline is subjected to weld joint detection after the pipeline is welded and installed. The phased array ultrasonic detection technology is generally adopted to detect the welding seam of the pipeline, so that the engineering quality of the pipeline is graded by checking whether the welded part of the pipeline has air holes, is not welded completely and is not fused.
At present, when a circumferential weld is detected for a large-diameter pipe, a chained scanning frame is generally adopted to fix a probe in phased array detection equipment at a pipe weld, and the probe is moved to detect the circumferential weld. However, the scanning frame with the structure needs to be pushed by a flaw detector to finish the flaw detection of the pipeline welding seam, the pushing track of the scanning frame is seriously influenced by human, the position of a probe is easy to deviate, and the detection effect is influenced.
In addition, when the circumferential weld of the large-diameter pipe is detected, the moving speed of the probe is controlled by the display data of the operation display screen in the phased array detection equipment, so that the detection effect is ensured. Therefore, in the actual detection process, the phased array detection equipment is generally placed on the pipeline, so that the flaw detection personnel can observe the detection result in real time by operating the display screen when pushing the scanning frame, and the operation of the flaw detection personnel is correspondingly adjusted. However, because the whole pipeline is of a curved surface structure, it is difficult to find a balance point to fixedly place the phased array detection equipment; in addition, in the moving process of the probe, the situation that the probe tears the phased array detection equipment through the connecting line is likely to occur, so that the phased array detection equipment is inclined or falls off from the pipeline, and the equipment is damaged.
Disclosure of Invention
In order to solve the above defects in the prior art, the utility model aims to provide a scanning device for pipeline weld phased array ultrasonic detection, so as to prevent the position of a probe from deviating and ensure the detection effect when the circumferential weld of a large-diameter pipe is detected; and can realize the safety of phased array check out test set on the pipeline and fix, prevent that phased array check out test set from inclining or dropping from the pipeline.
In order to achieve the above object, the utility model adopts the following technical scheme: a scanning device for phased array ultrasonic detection of pipeline welding seams comprises an instrument placing frame and a chain type scanning frame which are connected together through a transmission mechanism; the instrument placing frame comprises a vertical plate, a placing plate fixed at the bottom end of the vertical plate in a hinged mode, and supporting legs fixedly arranged on two sides of the bottom end of the vertical plate.
As a limitation of the present invention, the chain type scanning frame comprises a plurality of chain link assemblies which are connected together in a hanging manner, each chain link assembly comprises two chains which are arranged in parallel and fixedly connected through a connecting rod, and magnetic wheels which are fixedly arranged at two ends of each chain; and one chain link assembly is also fixedly provided with a probe fixing block.
As the utility model discloses a further inject, every chain is bad arcuation structure, and even a plurality of gear engagement grooves of having seted up on the chain.
As a further limitation of the present invention, the transmission mechanism includes a roller fixed on the instrument placement frame and located below the placement plate, and one to two gears engaged with the gear engagement grooves; the gear is fixedly arranged on the rolling shaft.
As a further limitation of the present invention, the device further comprises a driving motor for driving the rotation of the roller, wherein the driving motor is fixedly disposed on the instrument placement frame.
As another kind of the utility model discloses a prescribe a limit to, place the board and erect and be equipped with the torsional spring that is used for realizing placing board automatic re-setting between putting the board.
As a further limitation of the utility model, each supporting leg comprises two arc-shaped supporting rods which are hinged and fixed together.
Since the technical scheme is adopted, compared with the prior art, the utility model, the beneficial effect who gains is:
(1) the utility model is not only provided with a chain type scanning frame for driving the probe to move at the position of the pipeline welding seam, but also provided with an instrument placing frame for placing the phased array detection equipment, so that the damage of the equipment caused by the falling of the phased array detection equipment from the pipeline due to various accidents can be avoided when the pipeline welding seam is detected; and be connected through drive mechanism between chain scanning frame and the instrument rack to just can drive chain scanning frame through the driving motor on the instrument rack and rotate on the pipeline, avoided artifical promotion, can reduce the operation degree of difficulty of the personnel of detecting a flaw to a certain extent, on the other hand can avoid the orbit of carrying out of probe to receive artificial influence, further prevent that the deviation from appearing in the probe position, guaranteed detection effect's accuracy.
(2) The chain type scanning frame in the utility model is articulated and assembled by a plurality of chain link components, is convenient to disassemble and assemble, can be rapidly fixed at the welding seam of a pipeline, and improves the efficiency of pipeline girth weld detection; the chain among the chain scanning frame is the structure of bad arcuation, can be fine laminate mutually with the pipeline surface to can select the quantity of the linking subassembly that articulates according to the diameter size of pipeline, can adapt to the pipeline of work in different diameters, application scope is wider.
(3) The placing plate in the utility model can be automatically reset through the torsion spring when no instrument is placed, namely, the placing plate and the vertical placing plate are attached together, the volume of the placing plate is properly contracted, and the occupied space is reduced when the placing plate is not used; and two arc bracing pieces of supporting leg are articulated together fixed, can come the distance between two arc bracing pieces of appropriate adjustment according to the diameter size of the pipeline that will fix, guarantee that the instrument rack can stabilize all the time lay on the pipeline that will carry out the girth joint and detect.
In conclusion, the utility model has compact structure, convenient disassembly and simple operation, and can avoid the influence of human factors on the probe pushing track when detecting the circumferential weld of the pipeline, thereby ensuring the detection effect; and can realize phased array check out test set and place stably on the pipeline, prevent that equipment from dropping from the pipeline in the circumferential weld testing process.
The utility model is suitable for a use when carrying out the girth weld to heavy-calibre pipeline and detecting for fixed phased array check out test set realizes the removal of probe on pipeline welding seam surface.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of a link assembly according to an embodiment of the present invention;
in the figure: 1. vertically placing the plate; 2. placing the plate; 3. supporting legs; 4. a chain gantry; 5. a roller; 6. a gear; 7. a drive motor; 8. a torsion spring; 9. a pipeline; 41. a chain; 42. a magnetic wheel; 43. a probe fixing block; 44. a gear engagement groove; 45. a connecting rod.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the preferred embodiments described herein are for purposes of illustration and understanding only and are not intended to limit the invention.
Embodiment scanning device for phased array ultrasonic detection of pipeline welding seam
As shown in fig. 1 to 2, the present embodiment includes an instrument placement frame and a chain type scanning frame 4 connected together through a transmission mechanism, and when performing circumferential weld detection on a pipeline 9, the moving track of a probe is ensured not to deviate, and the detection effect is ensured.
One, chain type scanning frame 4
When the circumferential weld of the pipeline 9 is detected, the chain type scanning frame 4 is fixed on the surface of the pipeline 9 and used for ensuring that the probe is attached to the welding seam of the pipeline and realizing the movement of the probe on the surface of the welding seam of the pipeline. The chain gantry 4 comprises a plurality of chain link assemblies which are articulated together end to end, each chain link assembly comprising two chains 41 arranged in parallel and fixedly connected by a connecting rod 45. As shown in fig. 2, each chain 41 is in a minor arc shape, and a plurality of gear engaging grooves 44 are uniformly formed in the chain 41 (the gear engaging grooves 44 are arranged to connect the chain 41 to the gear 6 structure mentioned below). A magnetic wheel 42 is fixedly arranged below both ends of the chain 41 to ensure that the chain type scanning frame 4 can move or be fixed on the pipeline 9; the chains 41 are connected with the chains 41 end to end through hooks, that is, one end of each chain 41 is fixedly provided with one hook, and the other end of each chain 41 is provided with a groove matched with the hook. The number of link assemblies used may be selected according to the diameter of the pipe 9 to be girth welded, and in this embodiment, 8 link assemblies are used. In order to ensure that the probe is attached and fixed on the surface of the pipeline welding seam, a probe fixing block 43 is fixedly arranged on any one link assembly.
Second, instrument rack
When the circumferential weld of the pipeline 9 is detected, the instrument placing frame is used for stably placing the phased array detection equipment on the curved surface of the pipeline 9. The instrument placing frame comprises a vertical plate 1, a placing plate 2 fixed at the bottom end of the vertical plate 1 in a hinged mode, and supporting legs 3 fixedly arranged on two sides of the bottom end of the vertical plate 1. As shown in fig. 1, a torsion spring 8 is further arranged between the vertical plate 1 and the placing plate 2 for realizing automatic reset of the placing plate 2; every supporting leg 3 includes two articulated arc bracing pieces fixed together, can adjust the distance between two arc bracing pieces in a flexible way according to the diameter of pipeline 9, makes supporting leg 3 can laminate mutually with pipeline 9 surface to guarantee that the instrument storage rack is fixed stability on pipeline 9.
Third, drive mechanism
The transmission mechanism is used for realizing the connection between the instrument placing rack and the chain type scanning rack 4 and transmitting the power of the driving motor 7 fixed on the instrument placing rack to the chain type scanning rack 4 so as to realize the movement of the chain type scanning rack 4 on the pipeline 9. As shown in fig. 1, the transmission mechanism includes a roller 5 fixedly provided on the instrument holder and one to two gears 6 capable of engaging with the gear engagement grooves 44. Wherein, the roller 5 is positioned between the two supporting legs 3 and below the placing plate 2; the gear 6 is fixedly arranged on the roller 5 and can be matched with the gear meshing groove 44 when the circumferential weld detection of the pipeline 9 is carried out, so that the power is transmitted to the chain type scanning frame 4. In this embodiment, in order to ensure the stability of the whole device during power transmission, two gears 6 are arranged on the roller 5, and the distance between the two gears 6 is the same as the distance between two chains 41 in one link assembly.
The above mentioned drive motor 7 is used to power the movement of the chain gantry 4. In this embodiment, the driving motor 7 is disposed on the instrument placement frame, and transmits power to the roller 5 through the second gear, so that the roller 5 can drive the gear 6 to rotate.
Fourth, the working process
When the device is used, the chain type scanning frame 4 is sleeved and fixed at the position of a pipeline welding seam, and then the instrument placing frame is placed on the pipeline 9 and positioned above the chain type scanning frame 4; then the gear 6 on the roller 5 is meshed with the chain 41 through the gear meshing groove 44; then the placing plate 2 on the instrument placing frame is pulled down, the phased array detection equipment is placed on the placing plate 2, and the probe is placed in a probe fixing block 43 in the chain type scanning frame 4; and finally, holding the instrument placing rack by two hands, starting the driving motor 7, and enabling the chain type placing rack to drive the probe to move on the surface of the pipeline welding seam, so that the welding seam detection of the pipeline 9 is completed. When the diameter of the detected pipeline 9 changes, the chain type scanning element is suitable for the pipeline 9 to be subjected to the weld seam detection by adjusting the number of the connected chain link assemblies.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a scan and look into device for pipeline welding seam phased array ultrasonic testing which characterized in that: comprises an instrument placing frame and a chain type scanning frame which are connected together through a transmission mechanism; the instrument placing frame comprises a vertical plate, a placing plate fixed at the bottom end of the vertical plate in a hinged mode, and supporting legs fixedly arranged on two sides of the bottom end of the vertical plate.
2. The scanning device for phased array ultrasonic testing of pipe welds of claim 1, wherein: the chain type scanning frame comprises a plurality of chain link assemblies which are hung together, each chain link assembly comprises two chains which are arranged in parallel and fixedly connected through a connecting rod, and magnetic wheels which are fixedly arranged at two ends of each chain; and one chain link assembly is also fixedly provided with a probe fixing block.
3. The scanning device for phased array ultrasonic testing of pipe welds according to claim 2, characterized in that: each chain is of a minor arc structure, and a plurality of gear meshing grooves are uniformly formed in the chain.
4. The scanning device for phased array ultrasonic testing of pipe welds of claim 3, wherein: the transmission mechanism comprises a rolling shaft fixedly arranged on the instrument placing frame and positioned below the placing plate, and one to two gears matched with the gear meshing grooves; the gear is fixedly arranged on the rolling shaft.
5. The scanning device for phased array ultrasonic testing of pipe welds according to claim 4, characterized in that: the device is characterized by further comprising a driving motor for driving the rolling shaft to rotate, wherein the driving motor is fixedly arranged on the instrument placing frame.
6. The scanning device for phased array ultrasonic testing of pipe welds according to any of claims 1-5, characterized in that: place the board and erect and be equipped with the torsional spring that is used for realizing placing board automatic re-setting between the board.
7. The scanning device for phased array ultrasonic testing of pipe welds of claim 6, wherein: each supporting leg all includes two articulated arc bracing pieces of fixing together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020905410.1U CN212060066U (en) | 2020-05-26 | 2020-05-26 | Scanning device for phased array ultrasonic detection of pipeline weld joint |
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| CN202020905410.1U CN212060066U (en) | 2020-05-26 | 2020-05-26 | Scanning device for phased array ultrasonic detection of pipeline weld joint |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990777A (en) * | 2024-04-03 | 2024-05-07 | 山东瑞祥检测有限公司 | Portable magnetic powder nondestructive test device |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990777A (en) * | 2024-04-03 | 2024-05-07 | 山东瑞祥检测有限公司 | Portable magnetic powder nondestructive test device |
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