Automatic scanning device for detecting welding seam of joint of steel tube tower

Abstract

The utility model discloses an automatic scanning device for detecting a welding seam of a steel tube tower joint, which belongs to the technical field of welding seam detection and comprises an annular fixing shell, connecting plates are fixedly mounted on two sides of the annular fixing shell, and mounting components for mounting the connecting plates on a flange are arranged on the inner sides of the two groups of connecting plates. An inner cavity of the annular fixing shell is in sliding connection with an annular rotating ring. The device is installed on a flange of a steel tube tower through the installation assembly, at the moment, a joint welding seam between the steel tube tower and the flange is located in the center of the annular rotating ring, and at the moment, a user can adjust the use position of the phased array detection probe to the detection position through the adjustable connecting assembly; then the annular rotating ring is driven to rotate through the driving assembly, then the phased array detection probe is driven to rotate in the circumferential direction of the weld joint to conduct surrounding scanning on the weld joint, and through the arrangement of the device, the weld joint can be efficiently scanned under the condition that a steel pipe tower is not carried.

Description

Technical Field

[0001] The utility model relates to the technical field of weld detection, in particular to an automatic scanning device for detecting welds of steel pipe tower joints. Background Art

[0002] Currently, the welding of steel pipes and flanges of steel pipe towers is mainly inspected by creeping wave and small-diameter tube ultrasonic. There is no national standard unanimously recognized by the industry for creeping wave detection of steel pipe towers, and its reliability needs further inspection. Due to the influence of the near field area, small-diameter tube ultrasonic detection has a certain blind spot. According to the DL-T820-2002 standard, defects within 4mm cannot be detected. In comparison, phased array detection makes up for the shortcomings of the above two methods to a certain extent. For the detection of circumferential seams of steel pipe towers, phased array ultrasonic operation is generally manual circumferential scanning. When the quality of circumferential welds needs to be tested in batches, manual scanning is less efficient.

[0003] The Chinese patent with the publication (publication) number CN204903468U discloses an automatic scanning device for detecting the weld of the joint of a steel pipe tower, including a bracket, a horizontal fixed rod arranged parallel to the steel pipe tower is horizontally arranged on the bracket, a moving block is movably arranged on the horizontal fixed rod, a moving rod is movably arranged on the moving block, the lower part of the moving rod is connected to one end of the connecting rod, and the other end of the connecting rod clamps the probe for detecting the weld of the steel pipe tower through a clamping mechanism. The beneficial effects of the patent are: by movably setting the moving block on the horizontal fixed rod, the position of the probe can be driven to move by adjusting the position of the moving block for different welds; the height of the moving rod is adjusted by a knob to adapt to steel pipe towers of different diameters; the entire device is driven to rotate by a rotating motor, and the automatic detection of the weld of the steel pipe tower is realized, replacing manual labor and having high work efficiency.

[0004] The automatic scanning device for detecting the weld seams of steel pipe tower joints involved in the above-mentioned patent still has some obvious shortcomings in actual use. The device requires the steel pipe tower to be transported to the top of the roller to drive the steel pipe tower for rotational scanning. Such frequent transportation of the steel pipe tower is undoubtedly time-consuming and labor-intensive. Therefore, we need to propose an automatic scanning device for detecting the weld seams of steel pipe tower joints. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic scanning device for detecting the welds of steel pipe tower joints, which has the advantages of being able to be conveniently installed on the flange of the steel pipe tower and scanning the welds of the steel pipe tower joints, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides an automatic scanning device for detecting welds of steel pipe tower joints, comprising an annular fixed shell, connecting plates are fixedly installed on both sides of the annular fixed shell, and the inner sides of the two groups of connecting plates are provided with mounting components for mounting them on flanges, the inner cavity of the annular fixed shell is slidably connected with an annular rotating ring, the inner ring of the annular rotating ring is provided with a phased array detection probe for scanning the welds of steel pipe tower joints, an adjustable connecting component is provided between the phased array detection probe and the annular rotating ring, the phased array detection probe is movably connected to the inner ring of the annular rotating ring through the adjustable connecting component, and the outer sides of the two groups of connecting plates are provided with driving components for driving the annular rotating ring to rotate so as to drive the phased array detection probe to rotate along the circumferential direction of the weld for scanning.

[0007] Preferably, the driving assembly includes a driving motor arranged on the outside of the two groups of connecting plates, the output shaft of the driving motor is fixedly mounted with a driving gear, the outer ring of the annular rotating ring is mounted with a tooth groove matching the driving gear, and one side of the driving gear penetrates the annular fixed shell and extends to the inner cavity of the annular fixed shell to engage with the tooth groove.

[0008] Preferably, a rotation groove matched with the driving gear is formed on the surface of the annular fixed shell, and the surface of the driving gear is rotationally connected to the inner cavity of the rotation groove.

[0009] Preferably, a mounting bracket is fixedly mounted on the surface of the connecting plate, and one side of the driving motor is fixedly connected to the surface of the mounting bracket.

[0010] Preferably, the mounting assembly comprises two groups of mounting plates fixedly mounted on the surface of the connecting plate, the surface of the mounting plates is provided with mounting holes, and the inner cavities of the mounting holes are plugged with latches.

[0011] Preferably, the adjustable connecting assembly includes a connecting block fixedly mounted on the inner ring of the annular rotating ring, an adjusting tube fixedly mounted on the surface of the connecting block, an inner cavity of the adjusting tube being slidably connected to an adjusting rod, one end of the adjusting rod passes through the adjusting tube and extends to the outside of the adjusting tube and is fixedly connected to the surface of the phased array detection probe.

[0012] Preferably, a positioning rod is threadedly connected to the surface of the adjusting tube, and one end of the positioning rod passes through the adjusting tube and extends to the inner cavity of the adjusting tube to fit with the surface of the adjusting rod.

[0013] Preferably, a handle is fixedly installed on the top of the annular fixed shell, and the surfaces of the annular fixed shell and the annular rotating ring are both provided with through-slots that are compatible with the steel pipe tower joints.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model installs the device on the flange of the steel pipe tower by installing the components. At this time, the joint weld between the steel pipe tower and the flange is located at the center of the annular rotating circle. At this time, the user can adjust the use position of the phased array detection probe through the adjustable connection component, adjust it to the detection position, and then drive the annular rotating circle to rotate through the driving component, thereby driving the phased array detection probe to rotate along the circumference of the weld to perform a circumferential scan on it. Through the setting of the device, the weld can be efficiently scanned without moving the steel pipe tower. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 It is a structural schematic diagram of the installation assembly of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the drive assembly of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the adjustable connection assembly of the utility model.

[0020] In the figure: 1. annular fixed shell; 2. connecting plate; 3. annular rotating circle; 4. phased array detection probe; 5. driving motor; 6. driving gear; 7. tooth groove; 8. rotating groove; 9. mounting frame; 10. mounting plate; 11. mounting hole; 12. latch; 13. connecting block; 14. adjusting tube; 15. adjusting rod; 16. positioning rod; 17. handle; 18. slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4The utility model provides an automatic scanning device for detecting welds of steel pipe tower joints, comprising an annular fixed shell 1, connecting plates 2 are fixedly installed on both sides of the annular fixed shell 1, and the inner sides of the two groups of connecting plates 2 are provided with mounting components for mounting them on flanges. The mounting components include two groups of mounting plates 10 fixedly installed on the surfaces of the connecting plates 2, and mounting holes 11 are opened on the surfaces of the mounting plates 10. The inner cavity of the mounting holes 11 is plugged with a latch 12, and the inner cavity of the annular fixed shell 1 is slidably connected with an annular rotating ring 3, and a handle 17 is fixedly installed on the top of the annular fixed shell 1, and the surfaces of the annular fixed shell 1 and the annular rotating ring 3 are opened with through-slots 18 adapted to the steel pipe tower joint.

[0023] By setting the installation component, the device can be installed on the flange welded to the steel pipe tower. During installation, the user first needs to adjust the through-slots 18 on the annular fixed shell 1 and the annular rotating ring 3 so that the two sets of through-slots 18 overlap, and then the user can install the annular rotating ring 3 on the surface of the steel pipe tower through the through-slots 18. At this time, the steel pipe tower and the annular rotating ring 3 are in a coaxial position, and two sets of mounting plates 10 are respectively arranged on both sides of the flange, and the mounting holes 11 on the surface thereof correspond to the holes on the surface of the flange. The user can insert the pin 12 into it to fix the use position of the device on the steel pipe tower.

[0024] Preferably, the inner ring of the annular rotating ring 3 is provided with a phased array detection probe 4 for scanning the weld of the steel pipe tower joint, and an adjustable connecting assembly is provided between the phased array detection probe 4 and the annular rotating ring 3. The phased array detection probe 4 is movably connected to the inner ring of the annular rotating ring 3 through the adjustable connecting assembly. The adjustable connecting assembly includes a connecting block 13 fixedly installed on the inner ring of the annular rotating ring 3, and an adjusting tube 14 is fixedly installed on the surface of the connecting block 13. The inner cavity of the adjusting tube 14 is slidably connected to an adjusting rod 15, one end of the adjusting rod 15 penetrates the adjusting tube 14 and extends to the outside of the adjusting tube 14 and is fixedly connected to the surface of the phased array detection probe 4, and a positioning rod 16 is threadedly connected to the surface of the adjusting tube 14, and one end of the positioning rod 16 penetrates the adjusting tube 14 and extends to the inner cavity of the adjusting tube 14 to fit with the surface of the adjusting rod 15.

[0025] After the device is installed and fixed, the user can adjust the use position of the phased array detection probe 4 through the adjustable connecting assembly. Specifically, the user pulls the phased array detection probe 4 in the direction of the steel pipe tower, and its movement will drive the adjustment rod 15 to move in the inner cavity of the adjustment tube 14. When the use position of the phased array detection probe 4 is adjusted, the user can tighten the positioning rod 16 to lock and fix the use position of the phased array detection probe 4.

[0026] Among them, the outer sides of the two groups of connecting plates 2 are both equipped with a driving component for driving the annular rotating circle 3 to rotate so as to drive the phased array detection probe 4 to rotate and scan along the circumference of the weld. The driving component includes a driving motor 5 arranged on the outer sides of the two groups of connecting plates 2. The output shaft of the driving motor 5 is fixedly equipped with a driving gear 6. The outer ring of the annular rotating circle 3 is equipped with a tooth groove 7 adapted to the driving gear 6. One side of the driving gear 6 penetrates the annular fixed shell 1 and extends to the inner cavity of the annular fixed shell 1 to mesh with the tooth groove 7.

[0027] After adjusting the use position of the phased array detection probe 4, the user can turn on the drive motor 5 through the external controller. The output shaft of the drive motor 5 will drive the drive gear 6 to rotate, and then drive the annular rotating ring 3 to rotate in the inner cavity of the annular fixed shell 1. The rotation of the annular rotating ring 3 will drive the phased array detection probe 4 to rotate along the circumferential position of the weld to scan the weld.

[0028] It is worth mentioning that a rotating groove 8 compatible with the driving gear 6 is opened on the surface of the annular fixed shell 1, the surface of the driving gear 6 is rotatably connected to the inner cavity of the rotating groove 8, a mounting bracket 9 is fixedly installed on the surface of the connecting plate 2, and one side of the driving motor 5 is fixedly connected to the surface of the mounting bracket 9.

[0029] By setting the rotating groove 8, a rotating space can be provided for the driving gear 6. When the driving gear 6 rotates, its surface will rotate in the inner cavity of the rotating groove 8. By setting the mounting bracket 9, the driving motor 5 can be installed on the surface of the connecting plate 2, and the use position of the driving motor 5 can be installed and fixed.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic scanning device for detecting welds of steel pipe tower joints, characterized in that: include: An annular fixed shell (1), wherein connecting plates (2) are fixedly mounted on both sides of the annular fixed shell (1), and mounting components for mounting the connecting plates on flanges are disposed on the inner sides of two groups of connecting plates (2); An annular rotating ring (3) is slidably connected to the inner cavity of the annular fixed shell (1), the inner ring of the annular rotating ring (3) is provided with a phased array detection probe (4) for scanning the weld of the steel pipe tower joint, an adjustable connection component is provided between the phased array detection probe (4) and the annular rotating ring (3), and the phased array detection probe (4) is movably connected to the inner ring of the annular rotating ring (3) through the adjustable connection component; A driving assembly is installed outside the two groups of connecting plates (2) and is used to drive the annular rotating ring (3) to rotate so as to drive the phased array detection probe (4) to rotate and scan along the circumference of the weld.

2. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 1 is characterized in that: The driving assembly comprises a driving motor (5) arranged outside the two groups of connecting plates (2); a driving gear (6) is fixedly mounted on the output shaft of the driving motor (5); a tooth groove (7) matching the driving gear (6) is mounted on the outer ring of the annular rotating ring (3); one side of the driving gear (6) penetrates the annular fixed shell (1) and extends to the inner cavity of the annular fixed shell (1) to mesh with the tooth groove (7).

3. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 2 is characterized in that: The surface of the annular fixed shell (1) is provided with a rotation groove (8) adapted to the driving gear (6), and the surface of the driving gear (6) is rotationally connected to the inner cavity of the rotation groove (8).

4. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 2 is characterized in that: A mounting frame (9) is fixedly mounted on the surface of the connecting plate (2), and one side of the driving motor (5) is fixedly connected to the surface of the mounting frame (9).

5. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 1 is characterized in that: The mounting assembly comprises two groups of mounting plates (10) fixedly mounted on the surface of a connecting plate (2); mounting holes (11) are provided on the surfaces of the mounting plates (10); and a plug pin (12) is inserted into the inner cavity of the mounting hole (11).

6. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 1, characterized in that: The adjustable connection assembly comprises a connection block (13) fixedly mounted on the inner ring of the annular rotating ring (3); an adjustment tube (14) is fixedly mounted on the surface of the connection block (13); an adjustment rod (15) is slidably connected to the inner cavity of the adjustment tube (14); one end of the adjustment rod (15) passes through the adjustment tube (14) and extends to the outside of the adjustment tube (14) to be fixedly connected to the surface of the phased array detection probe (4).

7. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 6 is characterized in that: The surface of the regulating tube (14) is threadedly connected with a positioning rod (16), one end of which passes through the regulating tube (14) and extends to the inner cavity of the regulating tube (14) to fit with the surface of the regulating rod (15).

8. The automatic scanning device for detecting welds of steel pipe tower joints according to claim 1, characterized in that: A handle (17) is fixedly mounted on the top of the annular fixed shell (1), and surfaces of the annular fixed shell (1) and the annular rotating ring (3) are both provided with through-slots (18) adapted to the steel pipe tower joints.

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