Pipeline welding seam nondestructive testing device
By designing a non-destructive testing device for pipe welds, an ultrasonic probe is automatically rotated and inspected on the inner and outer walls of the pipe using a servo motor and an electric telescopic rod. This solves the problems of high operational difficulty and deviation in test results when inspecting the inner and outer walls of slender pipes, and improves the accuracy and stability of the inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-20
AI Technical Summary
In existing technologies, non-destructive testing of weld seams inside slender pipes is difficult to perform and can easily lead to deviations in test results.
A non-destructive testing device for pipeline welds was designed, comprising a support unit, an adjustment unit, a testing unit, and a clamping unit. A servo motor drives a rotating assembly and an electric telescopic rod to achieve automatic rotation and testing of the ultrasonic probe on the inner and outer walls of the pipeline. The pipeline is fixed by the clamping unit.
This technology enables dual non-destructive testing of the inner and outer walls of slender pipes, improving the accuracy and stability of the testing while reducing operational difficulty and testing deviations.
Smart Images
Figure CN224019754U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to detection device technical field especially relates to a pipeline weld nondestructive testing device. BACKGROUND
[0002] Pipeline weld refers to the joint formed by welding process at the pipeline connection, pipeline weld is usually made of steel or stainless steel, has higher strength and corrosion resistance, pipeline weld is mainly divided into two types of girth weld and butt weld, girth weld is usually used for circumferential welding of pipeline, connects the end face of pipeline, butt weld is used to connect two planar pipeline ends together, and butt weld requires strict butt gap and land control to ensure welding quality.
[0003] When detecting pipeline weld, ultrasonic flaw detector oblique probe is usually used to detect the outer wall or the inside of pipeline nondestructively, the existing detection mode usually fixes the pipeline, and then utilizes the probe to surround the outer surface of the pipeline to carry out nondestructive detection, when the inside of the pipeline needs to be detected, part of the pipeline is relatively long, and the worker needs to stick the probe to the inner wall of the pipeline and move, which not only has great operation difficulty, but also may cause deviation of the detection result due to improper operation, therefore, a pipeline weld nondestructive testing device is provided. SUMMARY
[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above problems existing in the prior art pipeline weld nondestructive testing device, the utility model is provided.
[0006] Therefore, the utility model aims to provide a pipeline weld nondestructive testing device, which is suitable for solving the problem that when the inside of part of long pipeline is detected, the worker needs to stick the probe to the inner wall of the pipeline and move, which not only has great operation difficulty, but also may cause deviation of the detection result due to improper operation.
[0007] To solve the above technical problems, the utility model provides the following technical scheme: a pipeline weld nondestructive testing device, comprising:
[0008] The support unit comprises a support table and a support plate fixedly connected to the top of the support table, and the support plate is provided with a rotating assembly;
[0009] The adjusting unit is arranged on the rotating assembly, and the rotating assembly is used to drive the adjusting unit to rotate;
[0010] A detection unit is arranged on the adjusting unit, and the adjusting unit is used for assisting the detection unit to adapt to pipes with different diameters, and the detection unit is used for nondestructive testing of pipe welds.
[0011] A clamping unit is arranged on the support table, and the clamping unit is used for clamping and fixing the pipe.
[0012] As a preferred scheme of the pipeline weld nondestructive testing device, the rotating assembly comprises a motor base fixedly connected to one side of the support plate, and a servo motor is fixedly installed on the inner side of the motor base.
[0013] As a preferred scheme of the pipeline weld nondestructive testing device, the adjusting unit comprises a door-shaped plate fixedly connected to the output end of the servo motor, two T-shaped blocks are slidably arranged on one side of the door-shaped plate, threaded rods penetrating through the door-shaped plate are threadedly connected to the two sides of the door-shaped plate, and the opposite ends of the two threaded rods are rotationally connected to the corresponding T-shaped blocks.
[0014] As a preferred scheme of the pipeline weld nondestructive testing device, the detection unit comprises two electric telescopic rods fixedly connected to the two T-shaped blocks respectively, and ultrasonic probes are fixedly connected to the output ends of the two electric telescopic rods.
[0015] As a preferred scheme of the pipeline weld nondestructive testing device, bearings are fixedly sleeved on the output shafts at the ends of the two electric telescopic rods, and rubber rings are fixedly sleeved on the outer walls of the two bearings.
[0016] As a preferred scheme of the pipeline weld nondestructive testing device, rubber rods are fixedly connected to the output shafts at the ends of the two electric telescopic rods, and sponge rods are fixedly connected to one end of the two rubber rods.
[0017] As a preferred scheme of the pipeline weld nondestructive testing device, the clamping unit comprises a connecting frame fixedly connected to the top of the support table, electric push rods are fixedly connected to the bottom and top of the inner wall of the connecting frame, clamping plates are fixedly connected to the opposite ends of the two electric push rods, and a pipe is clamped between the two clamping plates.
[0018] As a preferred scheme of the pipeline weld nondestructive testing device, a plurality of rubber strips are fixedly connected to the opposite surfaces of the two clamping plates, and gaps are left between adjacent two rubber strips.
[0019] The utility model discloses an advantageous effect: two ultrasonic probes can carry out nondestructive gap detection to the pipeline of different diameters through the adjusting unit, and two ultrasonic probes can carry out double detection to the outside and the inside of the pipeline in turn through two electric telescopic rods, so as to facilitate the operation of workers and improve the accuracy of detection. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings of the specification.
[0021] Figure 1 The whole structure schematic diagram of pipeline weld nondestructive testing device is provided for the utility model;
[0022] Figure 2 The adjusting unit and detection unit connection schematic diagram are provided for the utility model;
[0023] Figure 3 The clamping unit structure schematic diagram is provided for the utility model. BRIEF DESCRIPTION OF DRAWINGS:
[0025] 100, supporting unit;101, support table;102, support plate;103, rotating assembly;1031, motor base;1032, servo motor;
[0026] 200, adjusting unit;201, door-shaped plate;202, T-shaped block;203, threaded rod;
[0027] 300, detection unit;301, electric telescopic rod;302, ultrasonic probe;303, bearing;304, rubber ring;305, rubber stick;306, sponge stick;
[0028] 400, clamping unit;401, connecting frame;402, electric push rod;403, clamping plate;404, rubber strip. DETAILED DESCRIPTION
[0029] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model will be described in detail below with reference to the drawings of the specification.
[0030] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.
[0031] Secondly, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that can be included in at least one implementation of the present application. The "in one embodiment" appearing in various places in the specification does not all refer to the same embodiment, nor does it necessarily refer to a single or alternative embodiment.
[0032] Thirdly, the present application is described in detail in conjunction with the schematic diagram. In the detailed description of the embodiments of the present application, the sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in the actual manufacture.
[0033] Embodiment 1
[0034] Referring to Figures 1-3 For the first embodiment of the present application, a pipeline weld nondestructive testing device is provided, comprising: a support unit 100, an adjusting unit 200, a detection unit 300 and a clamping unit 400;
[0035] The support unit 100 comprises a support table 101 and a support plate 102 fixedly connected to the top of the support table 101, and a rotating assembly 103 is arranged on the support plate 102;
[0036] The adjusting unit 200 is arranged on the rotating assembly 103, and the rotating assembly 103 is used to drive the adjusting unit 200 to rotate;
[0037] The detection unit 300 is arranged on the adjusting unit 200, and the adjusting unit 200 is used to assist the detection unit 300 to adapt to pipelines of different diameters, and the detection unit 300 is used to perform nondestructive testing on the pipeline weld;
[0038] The clamping unit 400 is arranged on the support table 101, and the clamping unit 400 is used to clamp and fix the pipeline.
[0039] The pipeline is clamped and fixed by the clamping unit 400, then the adjusting unit 200 is used to adapt the detection unit 300 to pipelines of different diameters, and then the rotating assembly 103 drives the adjusting unit 200 and the detection unit 300 to rotate, so that the detection unit 300 performs gap nondestructive testing on the outside and inside of the pipeline.
[0040] Embodiment 2
[0041] Referring to Figure 1 and Figure 2For the second embodiment of the utility model, different from the last embodiment, the rotating assembly 103 includes a motor base 1031 fixedly connected on one side of the support plate 102, and a servo motor 1032 fixedly installed on the inner side of the motor base 1031.
[0042] The motor base 1031 is used for supporting the servo motor 1032, and the servo motor 1032 is used for driving the adjusting unit 200 to rotate.
[0043] Further, the adjusting unit 200 includes a door-shaped plate 201 fixedly connected on the output end of the servo motor 1032, and two T-shaped blocks 202 slidingly arranged on one side of the door-shaped plate 201; both sides of the door-shaped plate 201 are threadedly connected with threaded rods 203 penetrating through the door-shaped plate 201, and the opposite ends of the two threaded rods 203 are respectively rotationally connected with the corresponding T-shaped blocks 202.
[0044] The servo motor 1032 can drive the door-shaped plate 201 to rotate, and the inner side of the door-shaped plate 201 is provided with a sliding groove matching the T-shaped block 202; the T-shaped block 202 can slide in the sliding groove by rotating the threaded rod 203, so as to adjust the detection unit 300 by using the two T-shaped blocks 202, so as to adapt to pipes with different diameters.
[0045] Embodiment 3
[0046] Reference Figure 1 and Figure 2 For the third embodiment of the utility model, different from the last embodiment, the detection unit 300 includes two electric telescopic rods 301 fixedly connected on the two T-shaped blocks 202 respectively, and the output ends of the two electric telescopic rods 301 are fixedly connected with ultrasonic probes 302.
[0047] The T-shaped blocks 202 slide in the door-shaped plate 201 by rotating the two threaded rods 203, and the two electric telescopic rods 301 can be driven to move by using the T-shaped blocks 202; by adjusting the distance between the two ultrasonic probes 302, the pipes with different diameters and inner diameters can be adapted; the two ultrasonic probes 302 detect the outside and the inside of the pipe respectively; the ultrasonic probe 302 is a device for emitting and receiving ultrasonic waves in the ultrasonic detection process; the internal information of the measured object is obtained by processing these signals, so as to achieve the effect of nondestructive testing with the gap; the ultrasonic probe 302 is used in cooperation with the ultrasonic flaw detector through external lead lines; when the gap outside the pipe is detected, one of the ultrasonic probes 302 is moved to the gap outside the pipe by the electric telescopic rod 301.
[0048] Subsequently, the servo motor 1032 drives the door-shaped plate 201 to rotate, so that the ultrasonic probe 302 detects the gap around the pipe. When detecting the gap inside the pipe, the other ultrasonic probe 302 is moved to the gap inside the pipe by the other electric telescopic rod 301. Then, the ultrasonic probe 302 outside the pipe is moved away from the pipe by the electric telescopic rod 301, so as to avoid that the ultrasonic probe 302 inside the pipe detects the ultrasonic probe 302 outside the pipe, thereby affecting the detection result. When the ultrasonic probe 302 outside the pipe is moved away from the gap, the servo motor 1032 drives the door-shaped plate 201 to rotate, so that the ultrasonic probe 302 inside the pipe detects the gap around the pipe. Thus, double detection can be realized, so as to avoid worker operation and improve the accuracy of the detection result.
[0049] Further, the output shafts at the ends of the two electric telescopic rods 301 are fixedly sleeved with bearings 303, the outer walls of the two bearings 303 are fixedly sleeved with rubber rings 304, the output shafts at the ends of the two electric telescopic rods 301 are fixedly connected with rubber rods 305, and one end of each of the two rubber rods 305 is fixedly connected with a sponge rod 306.
[0050] When the positions of the two ultrasonic probes 302 are adjusted to be close to the gaps outside and inside the pipe respectively, the rubber rings 304 of the two bearings 303 can be in contact with the outer wall and the inner wall of the pipe respectively. During the rotation of the door-shaped plate 201, the rubber rings 304 rotate on the bearings 303 through friction. The bearings 303 can keep the electric telescopic rods 301 stable during rotation, so that the ultrasonic probes 302 can stably rotate around the gap of the pipe, thereby improving the stability of detection. During the rotation of the door-shaped plate 201, the sponge rods 306 can clean the gaps outside and inside the pipe, so as to reduce dust in the gaps, thereby improving the accuracy of detection. The rubber rods 305 are flexible rubber, which can bend to adapt to pipes with different diameters.
[0051] Embodiment 4
[0052] With reference to Figure 1 and Figure 3 The fourth embodiment of the utility model is different from the previous embodiment, and the clamping unit 400 comprises a connecting frame 401 fixedly connected to the top of the support table 101, electric push rods 402 fixedly connected to the bottom and the top of the inner wall of the connecting frame 401, clamping plates 403 fixedly connected to the opposite ends of the two electric push rods 402, a pipe clamped between the two clamping plates 403, and a plurality of rubber strips 404 fixedly connected to the opposite surfaces of the two clamping plates 403, wherein gaps are left between adjacent two rubber strips 404.
[0053] When the pipe is placed between the two clamping plates 403, the two electric push rods 402 move the two clamping plates 403 towards each other to clamp and fix the pipe, the rubber strips 404 can increase the friction between the clamping plates 403 and the pipe to ensure that the pipe can be clamped by the clamping plates 403, and the rubber strips 404 can also avoid the clamping plates 403 directly contacting the pipe to cause indentation, and when the rubber strips 404 are squeezed, a gap is left between the adjacent two rubber strips 404 for deformation of the rubber strips 404.
[0054] In use, the pipe is placed between the two clamping plates 403, then the two electric push rods 402 push the two clamping plates 403 towards each other to clamp and fix the pipe, and then the two threaded rods 203 are rotated to adjust the positions of the two T-shaped blocks 202, so that the two ultrasonic probes 302 are aligned with the gap at the outside and inside of the pipe respectively, when the gap at the outside of the pipe is detected, one of the ultrasonic probes 302 is moved to the gap at the outside of the pipe by the electric telescopic rod 301, then the door-shaped plate 201 is rotated by the servo motor 1032, and the sponge rod 306 can clean the gap at the outside of the pipe, so that the ultrasonic probe 302 at the outside of the pipe detects the gap around the pipe;
[0055] When the gap at the inside of the pipe is detected, the other electric telescopic rod 301 moves the other ultrasonic probe 302 to the gap at the inside of the pipe, then the ultrasonic probe 302 at the outside of the pipe is moved away from the pipe by the electric telescopic rod 301, then the door-shaped plate 201 is rotated by the servo motor 1032, so that the ultrasonic probe 302 at the inside of the pipe detects the gap at the inside of the pipe around the pipe, after detection, the servo motor 1032 stops rotating, then the two electric telescopic rods 301 move the ultrasonic probes 302 towards the door-shaped plate 201 and away from the pipe, then the two clamping plates 403 are moved away from each other by the two electric push rods 402, and then the pipe can be removed from the clamping plates 403.
[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A non-destructive testing device for pipeline welds, characterized in that, include: The support unit (100) includes a support platform (101) and a support plate (102) fixedly connected to the top of the support platform (101), wherein a rotating assembly (103) is provided on the support plate (102); An adjustment unit (200) is disposed on a rotating assembly (103), the rotating assembly (103) being used to drive the adjustment unit (200) to rotate; A detection unit (300) is disposed on an adjustment unit (200). The adjustment unit (200) is used to assist the detection unit (300) in adapting to pipes of different diameters. The detection unit (300) is used to perform non-destructive testing on pipe welds. A clamping unit (400) is disposed on a support platform (101) and is used to clamp and fix the pipe.
2. The non-destructive testing device for pipeline welds according to claim 1, characterized in that: The rotating assembly (103) includes a motor mount (1031) fixedly connected to one side of the support plate (102), and a servo motor (1032) is fixedly installed on the inner side of the motor mount (1031).
3. The non-destructive testing device for pipeline welds according to claim 2, characterized in that: The adjustment unit (200) includes a gate-shaped plate (201) fixedly connected to the output end of the servo motor (1032). Two T-blocks (202) are slidably provided on one side of the gate-shaped plate (201). Threaded rods (203) that penetrate the gate-shaped plate (201) are threadedly connected to both sides of the gate-shaped plate (201). The opposite ends of the two threaded rods (203) are rotatably connected to the corresponding T-blocks (202).
4. The non-destructive testing device for pipeline welds according to claim 3, characterized in that: The detection unit (300) includes two electric telescopic rods (301) that are fixedly connected to two T-blocks (202), and an ultrasonic probe (302) is fixedly connected to the output end of each of the two electric telescopic rods (301).
5. The non-destructive testing device for pipeline welds according to claim 4, characterized in that: The output shafts at the ends of the two electric telescopic rods (301) are each fixedly fitted with a bearing (303), and the outer walls of the two bearings (303) are each fixedly fitted with a rubber ring (304).
6. The non-destructive testing device for pipeline welds according to claim 5, characterized in that: The output shafts at the ends of the two electric telescopic rods (301) are fixedly connected to rubber rods (305), and one end of each of the two rubber rods (305) is fixedly connected to a sponge rod (306).
7. The non-destructive testing device for pipeline welds according to claim 1, characterized in that: The clamping unit (400) includes a connecting frame (401) fixedly connected to the top of the support platform (101). Electric push rods (402) are fixedly connected to the bottom and top of the inner wall of the connecting frame (401). Clamping plates (403) are fixedly connected to the opposite ends of the two electric push rods (402). A pipe is clamped between the two clamping plates (403).
8. The non-destructive testing device for pipeline welds according to claim 7, characterized in that: Multiple rubber strips (404) are fixedly connected to the opposite surfaces of the two clamping plates (403), with a gap between adjacent rubber strips (404).