Pressure pipeline ray center penetration irradiation ray source positioning device

Abstract

The utility model discloses a pressure pipeline ray center penetration irradiation ray source positioning device, belongs to the technical field of nondestructive testing, aims to solve the problems that center positioning and positioning specification adjustment cannot be quickly carried out, and comprises a pipeline, a mounting plate is mounted in the pipeline, and a first limiting disc is rotationally mounted on the front side in the mounting plate; a first limiting disc is rotatably mounted on the inner rear side of the mounting plate, a second limiting disc is rotatably mounted on the inner rear side of the mounting plate, a positioning mechanism is arranged in the mounting plate between the first limiting disc and the second limiting disc, the positioning mechanism comprises a driving assembly and an adjusting assembly, and the driving assembly is mounted in the mounting plate through the first limiting disc; the adjusting assembly is arranged in the mounting plate through the first limiting disc and the second limiting disc and is connected with the driving assembly; according to the utility model, through the arrangement of the positioning mechanism, the center positioning of the gamma source conveying pipe can be quickly realized, and the gamma source conveying pipe can be conveniently conveyed in the pipeline, so that the positioning accuracy of the gamma source conveying pipe is improved, and the accuracy of detection work is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of nondestructive testing, and in particular relates to a pressure pipeline ray center penetrating irradiation line source positioning device. Background Art

[0002] With the development of modern industry, higher and higher requirements are put forward for product quality, structural safety and reliability of use. Since non-destructive testing technology has the characteristics of non-destructive testing and high detection sensitivity, its application is becoming more and more extensive. Among them, radiographic testing is one of the most commonly used and reliable methods. When testing the girth weld of pressure pipelines, the central radiography method is often used. One exposure can realize the detection of the entire girth weld, which greatly improves work efficiency and reduces the amount of radiation absorbed by personnel.

[0003] The prior art discloses a pressure pipeline radiation center penetrating radiation source positioning device with patent announcement number CN218445221U. The above patent includes a center positioning source delivery tube and an adjustment support rod. Three adjustment support rods are arranged at intervals along the circumference on the front outer side of the center positioning source delivery tube; the adjustment support rod includes an outer support tube, an adjustment nut and an adjustment screw. An adjustment nut is fixedly installed on the inner end of the outer support tube, and an adjustment screw is fixedly installed in the adjustment nut, whose inner end is fixedly installed with the corresponding position of the outer side of the center positioning source delivery tube. The utility model has a reasonable and compact structure and is easy to use. By adjusting the lengths of the three adjusting support rods, the center positioning of pressure pipes with different inner diameters can be met; by adjusting the three adjusting support rods to the same length, the center positioning of the inner circle of the pressure pipe is achieved; by setting a center positioning source delivery pipe, the gamma source transport pipe inside it can be stably transported to complete gamma ray flaw detection, and it has the characteristics of stability, reliability and accurate center positioning. However, in actual use, there are still the following deficiencies: from a practical point of view, when the device positions and adjusts the gamma source transport pipe, it is necessary to manually adjust the three adjusting support rods to ensure that it is located in the center positioning. Since manual adjustment cannot accurately guarantee its accuracy, it is easy to cause positioning errors and detection errors.

[0004] Therefore, a pressure pipeline radiation center penetrating ray source positioning device is needed to solve the problem that the center positioning and the positioning specifications cannot be quickly adjusted in the prior art. Utility Model Content

[0005] The utility model aims to provide a pressure pipeline ray center penetrating irradiation line source positioning device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure pipeline radiation center penetrating ray source positioning device, comprising a pipeline, a mounting plate installed in the pipeline, a first limit plate rotatably installed on the front side of the mounting plate, a second limit plate rotatably installed on the rear side of the mounting plate, and a positioning mechanism is arranged in the mounting plate between the first limit plate and the second limit plate.

[0007] The positioning mechanism comprises a driving assembly and an adjusting assembly. The driving assembly is installed in the mounting plate via a first limiting plate, and the adjusting assembly is arranged in the mounting plate via a first limiting plate and a second limiting plate and connected to the driving assembly.

[0008] It should be noted in the solution that a cavity is provided in the middle of the mounting plate and is arranged in the pipeline, the positioning mechanism is installed on the mounting plate through the cavity, and a gap is left between the first limiting plate and the second limiting plate.

[0009] It is further worth explaining that the driving assembly includes a fixed plate, which is fixedly connected to the lower surface of the second limit plate, and a connecting shaft is rotatably connected to the fixed plate. The other end of the electric telescopic rod is rotatably connected to a rotating block, and the rotating block is fixedly connected to the electric telescopic rod on one side of the mounting plate, and the other end of the electric telescopic rod is rotatably connected to a fixed shaft and rotatably mounted on the mounting plate.

[0010] It should be further explained that the adjustment assembly includes three rotating shafts, and the three rotating shafts are evenly arranged in the mounting plate through a cavity and connected to the mounting plate, the other end of the rotating shaft is rotatably connected to a fixed block, and the fixed block is fixedly connected to a movable column on the surface of a side close to the center of the pipe, and a sliding sleeve is slidably provided on the movable column and is connected to the first limit plate and the second limit plate through a hinge rod, the other end of the movable column is hingedly installed with an adjustment block on the side close to the center of the pipe, and the adjustment block is hingedly installed with a limiting wheel on the side close to the center of the pipe, and the other side of the adjustment block is fixedly connected to a telescopic adjustment rod, and the other end of the telescopic adjustment rod is fixedly connected to a connecting plate and is arranged between and connected to the first limit plate and the second limit plate.

[0011] As a preferred implementation, the sliding sleeve is rotatably connected to the first limiting plate and the second limiting plate via a hinged rod, and the telescopic adjustment rod is made of an elastic material.

[0012] As a preferred embodiment, the limiting wheel is made of rubber material, and the rotation direction of the regulating block is consistent with the direction of the central axis of the pipeline.

[0013] Compared with the prior art, the pressure pipeline ray center penetrating irradiation source positioning device provided by the utility model has at least the following beneficial effects:

[0014] (1) Through the positioning mechanism, the center positioning of the γ source delivery pipe can be quickly achieved, and it can be conveniently transported in the pipeline, thereby improving its positioning accuracy and ensuring the accuracy of the detection work.

[0015] (2) Through the adjustment components provided in the positioning mechanism, it is possible to quickly adjust according to different specifications of the transmissive radiation source to facilitate its positioning and installation. At the same time, the adjustment process can always ensure that it is located at the center of the pipeline, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0018] Figure 3 It is a side view cutaway structural schematic diagram of the utility model;

[0019] Figure 4 It is a schematic diagram of the disassembled structure of the positioning mechanism of the utility model.

[0020] In the figure: 1. pipeline; 2. mounting plate; 3. first limiting plate; 301. second limiting plate; 4. positioning mechanism; 41. driving assembly; 411. fixing plate; 412. connecting shaft; 413. rotating block; 414. electric telescopic rod; 415. fixing shaft; 42. adjusting assembly; 421. rotating shaft; 422. fixing block; 423. movable column; 424. sliding sleeve; 425. connecting plate; 426. adjusting block; 427. telescopic adjusting rod; 428. limiting wheel. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a pressure pipeline radiation center penetrating irradiation line source positioning device, comprising a pipeline 1, a mounting plate 2 is installed in the pipeline 1, a first limiting plate 3 is rotatably installed on the front side of the mounting plate 2, a second limiting plate 301 is rotatably installed on the rear side of the mounting plate 2, and a positioning mechanism 4 is arranged in the mounting plate 2 between the first limiting plate 3 and the second limiting plate 301.

[0023] The positioning mechanism 4 includes a driving assembly 41 and an adjusting assembly 42 . The driving assembly 41 is installed in the mounting plate 2 via the first limiting plate 3 . The adjusting assembly 42 is arranged in the mounting plate 2 via the first limiting plate 3 and the second limiting plate 301 and is connected to the driving assembly 41 .

[0024] The first limiting plate 3 cooperates with the second limiting plate 301 and the positioning mechanism 4 to facilitate rotation in the mounting plate 2. The positioning mechanism 4 can also be used to position and install the radiation source, and can be adjusted and positioned accordingly according to different specifications, thereby greatly improving the practicability of the device.

[0025] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth explaining in detail that a cavity is provided in the middle of the mounting plate 2 and is arranged in the pipeline 1, the positioning mechanism 4 is installed on the mounting plate 2 through the cavity, and a gap is left between the first limiting plate 3 and the second limiting plate 301.

[0026] Further Figure 2 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the driving assembly 41 includes a fixed plate 411, which is fixedly connected to the lower surface of the second limit plate 301, and a connecting shaft 412 is rotatably connected to the fixed plate 411, and the other end of the electric telescopic rod 414 is rotatably connected to a rotating block 413, and the rotating block 413 is fixedly connected to the electric telescopic rod 414 on one side of the mounting plate 2, and the other end of the electric telescopic rod 414 is rotatably connected to a fixed shaft 415 and is rotatably mounted on the mounting plate 2.

[0027] Further Figure 2 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the adjustment component 42 includes three rotating shafts 421, and the three rotating shafts 421 are evenly arranged in the mounting plate 2 through the cavity and connected to the mounting plate 2. The other end of the rotating shaft 421 is rotatably connected to a fixed block 422, and the fixed block 422 is fixedly connected to a movable column 423 on the surface of the side close to the center of the pipeline 1. A sliding sleeve 424 is slidably arranged on the movable column 423 and is connected to the first limit plate 3 and the second limit plate 301 through a hinge rod. The other end of the movable column 423 is hingedly installed with an adjustment block 426 near the center of the pipeline 1. Block 426 is hingedly installed with a limiting wheel 428 on one side close to the center of the pipeline 1, and a telescopic adjusting rod 427 is fixedly connected to the other side of the adjusting block 426. The other end of the telescopic adjusting rod 427 is fixedly connected to a connecting plate 425 and is arranged between the first limiting plate 3 and the second limiting plate 301 and connected. The sliding sleeve 424 is rotatably connected to the first limiting plate 3 and the second limiting plate 301 through a hinge rod. The telescopic adjusting rod 427 is made of elastic material, and the limiting wheel 428 is made of rubber material, and the rotation direction of the adjusting block 426 is consistent with the direction of the central axis of the pipeline 1.

[0028] By operating the electric telescopic rod 414, the rotating block 413 is pushed to drive the fixed plate 411 to push the second limit plate 301. The connecting shaft 412 and the fixed shaft 415 are arranged so that the second limit plate 301 can rotate on the mounting plate 2. By rotating the second limit plate 301, at this time, since the rotating shaft 421 is rotatably connected to the mounting plate 2, and the sliding sleeve 424 is rotatably arranged between the first limit plate 3 and the second limit plate 301, the sliding sleeve 424 is displaced, and then the movable column 423 is pushed to slide in the sliding sleeve 424, so that the movable column 423 runs close to the center of the pipeline 1, thereby realizing the positioning and clamping of the radiation source, and at the same time, it is convenient to adjust and position according to radiation sources of different specifications, thereby improving the practicality of the device.

[0029] According to the above working process, it can be known that: through the positioning mechanism 4, the center positioning of the γ source delivery tube can be quickly achieved, and it can be conveniently transported in the pipeline 1, thereby improving its positioning accuracy and ensuring the accuracy of the detection work.

[0030] This scheme has the following working process: when this device is used, first the device is installed in the pipeline 1 through the mounting plate 2, at this time the radiation source is positioned and installed in the pipeline 1 through the positioning mechanism 4 to detect the pipeline, the adjustment component 42 is rotated and installed in the mounting plate 2 through the first limit plate 3 and the second limit plate 301, at this time the electric telescopic rod 414 is operated to push the rotating block 413 to drive the fixed plate 411 to push the second limit plate 301, and the connecting shaft 412 and the fixed shaft 415 are arranged so that the second limit plate 301 can rotate on the mounting plate 2, and the second limit plate 301 can rotate on the mounting plate 2. The second limit plate 301 rotates. At this time, since the rotating shaft 421 is rotated and connected to the mounting plate 2, and the sliding sleeve 424 is rotated and arranged between the first limit plate 3 and the second limit plate 301, the sliding sleeve 424 is displaced, thereby pushing the movable column 423 to slide in the sliding sleeve 424, so that the movable column 423 runs close to the center of the pipeline 1, thereby realizing the positioning and clamping of the radiation source, and at the same time, it can be adjusted and positioned according to radiation sources of different specifications, thereby improving the practicability of the device, and through the rotation of the limiting wheel 428, it is convenient to transport the radiation source and improve the detection efficiency.

[0031] In summary: through the positioning mechanism 4, the center positioning of the γ source delivery tube can be quickly achieved, and it can be conveniently transported in the pipeline 1, thereby improving its positioning accuracy and ensuring the accuracy of the detection work; through the adjustment component 42 set in the positioning mechanism 4, it can be quickly adjusted according to different specifications of the transmissive radiation source to facilitate its positioning and installation, and at the same time, the adjustment process can always ensure that it is located in the center of the pipeline 1, thereby improving the practicability of the device.

Claims

1. A pressure pipeline radiation center penetrating radiation source positioning device, comprising a pipeline (1), characterized in that: A mounting plate (2) is installed in the pipeline (1), a first limiting plate (3) is rotatably installed on the front side of the mounting plate (2), a second limiting plate (301) is rotatably installed on the rear side of the mounting plate (2), and a positioning mechanism (4) is provided in the mounting plate (2) between the first limiting plate (3) and the second limiting plate (301); The positioning mechanism (4) comprises a driving assembly (41) and an adjusting assembly (42); the driving assembly (41) is mounted in the mounting plate (2) via a first limiting plate (3); the adjusting assembly (42) is arranged in the mounting plate (2) via the first limiting plate (3) and a second limiting plate (301) and is connected to the driving assembly (41).

2. The pressure pipeline center irradiation source positioning device according to claim 1, characterized in that: The mounting plate (2) is provided with a cavity in the middle and is arranged in the pipeline (1); the positioning mechanism (4) is installed on the mounting plate (2) through the cavity; and a gap is left between the first limiting plate (3) and the second limiting plate (301).

3. The pressure pipeline center irradiation source positioning device according to claim 1, characterized in that: The driving assembly (41) comprises a fixed plate (411) and a rotating block (413); the fixed plate (411) is fixedly connected to the lower surface of the second limiting plate (301); a connecting shaft (412) is rotatably connected to the fixed plate (411); the rotating block (413) is fixedly connected to an electric telescopic rod (414) at one side inside the mounting plate (2); the other end of the electric telescopic rod (414) is rotatably connected to a fixed shaft (415) and is rotatably mounted on the mounting plate (2).

4. The pressure pipeline center irradiation source positioning device according to claim 1, characterized in that: The adjustment assembly (42) comprises three rotating shafts (421), the three rotating shafts (421) are evenly arranged in the mounting plate (2) through a cavity and connected to the mounting plate (2), the other end of the rotating shaft (421) is rotatably connected to a fixed block (422), the fixed block (422) is fixedly connected to a movable column (423) on a surface of one side close to the center of the pipeline (1), the movable column (423) is slidably provided with a sliding sleeve (424) and is connected to the first limit plate (3) and the second limit plate through a hinge rod. (301), the other end of the movable column (423) is hingedly mounted with an adjustment block (426) close to the center of the pipeline (1), the adjustment block (426) is hingedly mounted with a limit wheel (428) close to the center of the pipeline (1), the other side of the adjustment block (426) is fixedly connected with a telescopic adjustment rod (427), the other end of the telescopic adjustment rod (427) is fixedly connected with a connecting plate (425) and is arranged between and connected to the first limit plate (3) and the second limit plate (301).

5. A pressure pipeline radiation center penetrating radiation source positioning device according to claim 4, characterized in that: The sliding sleeve (424) is rotatably connected to the first limiting plate (3) and the second limiting plate (301) via a hinged rod, and the telescopic adjustment rod (427) is made of an elastic material.

6. The pressure pipeline center irradiation source positioning device according to claim 4, characterized in that: The limiting wheel (428) is made of rubber material and its rotation direction is consistent with the direction of the central axis of the pipeline (1) through the adjustment block (426).

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