Pressure pipeline flaw detection positioning device

Abstract

The utility model discloses a flaw detection positioning device for a pressure pipeline, and relates to the technical field of pipeline flaw detection. The pipeline flaw detection device comprises a bottom plate, a driving piece, a position adjusting sliding block, a fixing rod and a flaw detector, a supporting seat for positioning a pipeline is installed on the surface of the bottom plate in a sliding mode, and a supporting ring is fixedly installed at the rear end of the bottom plate. The positioning sliding blocks are connected with the driven wheel, the driving wheel is driven by the servo motor to rotate, the positioning sliding blocks connected with the driven wheel are driven by the driving wheel to slide along the surface of the supporting ring, and the fixing rod is pushed by the two positioning sliding blocks to rotate around the surface of the pipeline. The detection end of the flaw detector is controlled to be attached to the surface of the pipeline, flaw detection work is stably carried out, the distance between the fixing rod and the pipeline is changed by penetrating the fixing rod through the interiors of the two sets of position adjusting sliding blocks and adjusting the distance between the two sets of position adjusting sliding blocks, and the detection end of the flaw detector is made to be attached to the welding position of the pipeline along with the fixing rod.

Description

Technical Field

[0001] This utility model relates to the field of pipeline flaw detection technology, specifically to a pressure pipeline flaw detection and positioning device. Background Technology

[0002] During the welding process of pressure pipelines, internal cracks and defects may exist at the joints. It is necessary to use flaw detection equipment to detect and evaluate internal defects, corrosion, cracks and other problems in the pipeline to ensure the integrity and reliability of the pipeline. Flaw detection equipment includes radiographic testing, magnetic particle testing, ultrasonic testing and so on. When using ultrasonic testing equipment, the probe contacts the weld joint of the pipeline and performs flaw detection around it.

[0003] When using existing flaw detection equipment, a positioning device is installed to push the flaw detection head to fit against the pipe surface to assist in the flaw detection work. However, the pipes of different specifications have large size differences. Using electric push rods or other pushing components to move the flaw detection head closer to the pipe is limited by the stroke of the pushing components, making it difficult to ensure that the flaw detection head fits fully with pipes of different specifications. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a pressure pipeline flaw detection and positioning device, which solves the problem that the flaw detection and positioning device cannot guarantee the fit between the flaw detection head and pipelines of different specifications due to the limited stroke of the pushing component.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressure pipeline flaw detection and positioning device, comprising a base plate, a driving component, an adjusting slider, a fixing rod, and a flaw detector, wherein a support seat for positioning the pipeline is slidably installed on the surface of the base plate, and a support ring is fixedly installed at the rear end of the base plate;

[0006] The driving component is disposed on the surface of the support ring, and the adjusting slider is slidably installed on the surface of the support ring. The driving component is connected to the adjusting slider. There are two sets of adjusting sliders, which are arranged symmetrically. The fixing rod is slidably inserted into the interior of the two sets of adjusting sliders and is placed horizontally above the pressure pipe. The detection end of the flaw detector is connected to the fixing rod and fits against the surface of the pressure pipe.

[0007] The support base includes a horizontal plate, a movable platform, a positioning roller, and a limiting belt. The horizontal plate is slidably installed on the surface of the base plate, and the surface of the base plate has holes. Bolts are threaded on the top of the horizontal plate and correspond to the holes in the horizontal plate. A groove is provided on the top of the horizontal plate. The movable platform is slidably installed in the groove of the horizontal plate. Bolts are threaded on the groove of the horizontal plate and penetrate the surface of the movable platform. A positioning roller is rotatably installed on the top of the movable platform. A limiting belt is fixedly connected to one end of the horizontal plate, and a buckle is provided at the other end of the horizontal plate, which corresponds to the free end of the limiting belt.

[0008] The number of moving platforms and positioning rollers is two sets, and the two sets of moving platforms and positioning rollers are symmetrically arranged on the top of the horizontal plate.

[0009] The support ring includes a circular ring and a connecting plate. A limiting groove is provided on the rear side of the circular ring, and the connecting plate is fixedly installed on the bottom inner side of the circular ring. The connecting plate is connected to the bottom rear end of the base plate.

[0010] The driving component includes a servo motor, a driving wheel, and a driven wheel. The servo motor is fixedly installed at the bottom of the support ring, and the output end of the servo motor is fixedly connected to the driving wheel. The driven wheel is rotatably installed on the front side of the support ring, and an annular groove is provided on the front side of the driven wheel. The driving wheel and the driven wheel are meshed together.

[0011] The adjusting slider includes a sliding plate, a limiting ball, a U-shaped plate, and a rotating shaft. The sliding plate fits against the surface of the support ring. The limiting ball is fixedly connected to the front side of the sliding plate. The limiting ball is slidably connected to the rear side of the support ring. The U-shaped plate is fixedly installed on the surface of the sliding plate. Bolts are threaded on the surface of the U-shaped plate. The rotating shaft is rotatably installed on the rear side of the sliding plate. The rotating shaft has a through groove on its surface and bolts are threaded on its rear side.

[0012] The fixing rod includes a rod body, a sliding sleeve, and a clamp. The rod body is slidably inserted into the rear end of the adjusting slider. The sliding sleeve is fixedly installed on the surface of the rod body, and the clamp is provided at the bottom end of the sliding sleeve.

[0013] The flaw detector includes an operating table and a detection probe. A connecting line is fixedly installed on one side of the operating table, and the free end of the connecting line is connected to the detection probe.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention connects a positioning slider to a driven wheel, and a servo motor drives a driving wheel to rotate. This causes the positioning slider, connected to the driven wheel, to slide along the surface of a support ring. Two sets of positioning sliders push a fixed rod to rotate around the surface of the pipe, controlling the detection end of the flaw detector to adhere to the surface of the pipe for stable flaw detection. By passing the fixed rod through the interior of the two sets of positioning sliders, the distance between the two sets of sliders is adjusted, thereby changing the distance between the fixed rod and the pipe. This ensures that the detection end of the flaw detector adheres to the welded joint between the fixed rod and the pipe. The cooperation between the fixed rod and the positioning sliders avoids situations where the travel of the pushing component is limited, making it difficult for the flaw detector end to adhere to pipes of different specifications. Attached Figure Description

[0016] Figure 1 This is a first-person perspective three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a two-dimensional structural diagram of the present invention from a second perspective;

[0018] Figure 3 This is a structural schematic diagram of the base plate and support seat of this utility model;

[0019] Figure 4 This is a partial rear view of the present invention;

[0020] Figure 5 This is a second partial side view of the present invention;

[0021] Figure 6 This is a schematic diagram of the third part of the structure of this utility model.

[0022] Reference numerals in the attached drawings: 1. Base plate; 2. Support base; 201. Horizontal plate; 202. Moving table; 203. Positioning roller; 204. Limiting belt; 3. Support ring; 301. Circular ring; 302. Connecting plate; 4. Driving component; 401. Servo motor; 402. Driving wheel; 403. Driven wheel; 5. Adjusting slider; 501. Slide plate; 502. Limiting ball; 503. U-shaped plate; 504. Rotating shaft; 6. Fixed rod; 601. Rod body; 602. Sliding sleeve; 603. Fixture; 7. Flaw detector; 701. Operating table; 702. Detection probe. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention may exceed the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but they still fall within the protection scope of this application.

[0024] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figure 1 -Appendix Figure 6 The present invention will be further described below.

[0025] A pressure pipeline flaw detection and positioning device includes a base plate 1, a driving component 4, an adjusting slider 5, a fixing rod 6, and a flaw detector 7. A support seat 2 for positioning the pipeline is slidably installed on the surface of the base plate 1, and a support ring 3 is fixedly installed at the rear end of the base plate 1. The driving component 4 is disposed on the surface of the support ring 3, and the adjusting slider 5 is slidably installed on the surface of the support ring 3. The driving component 4 is connected to the adjusting slider 5. There are two sets of adjusting sliders 5, which are symmetrically arranged. The fixing rod 6 is slidably inserted into the interior of the two sets of adjusting sliders 5 and is horizontally placed above the pressure pipeline. The detection end of the flaw detector 7 is connected to the fixing rod 6 and is in contact with the surface of the pressure pipeline.

[0026] Specifically, the support seat 2 slides on the base plate 1 to adjust its position and limit and fix pipes of different specifications. The driving component 4 pushes the adjusting slider 5 to slide on the surface of the support ring 3, controlling the detection end of the flaw detector 7 to move around the pipe. By passing the fixing rod 6 through the inside of the two sets of adjusting sliders 5, the fixing rod 6 is adjusted to be close to the pipe surface by relying on the sliding of the adjusting slider 5 on the surface of the support ring 3, and the flaw detector 7 is used to detect flaws in the pipe.

[0027] The support base 2 includes a horizontal plate 201, a movable stage 202, a positioning roller 203, and a limiting belt 204. The horizontal plate 201 is slidably mounted on the surface of the base plate 1. Holes are provided on the surface of the base plate 1. Bolts are threaded onto the top of the horizontal plate 201 and correspond to the holes in the horizontal plate 201. A groove is provided on the top of the horizontal plate 201. The movable stage 202 is slidably mounted in the groove of the horizontal plate 201. Bolts are threaded onto the groove of the horizontal plate 201 and penetrate the surface of the movable stage 202. The positioning roller 203 is rotatably mounted on the top of the movable stage 202. The limiting belt 204 is fixedly connected to one end of the horizontal plate 201, and a buckle is provided at the other end of the horizontal plate 201, corresponding to the free end of the limiting belt 204. There are two sets of movable stages 202 and positioning rollers 203, and the two sets of movable stages 202 and positioning rollers 203 are symmetrically arranged on the top of the horizontal plate 201.

[0028] Specifically, the horizontal plate 201 slides on the surface of the base plate 1 to fix pipes of different lengths. The position of the horizontal plate 201 on the base plate 1 is limited and fixed by the bolts on the horizontal plate 201. The position of the positioning roller 203 is adjusted by the sliding table 202 inside the groove of the horizontal plate 201 to fix pipes of different specifications and sizes. The moving table 202 is limited and fixed by the bolts at the groove of the horizontal plate 201. The limiting band 204 fits against the top of the pipe and is connected with the buckle to apply pressure to the pipe and fix it on the top of the two sets of positioning rollers 203.

[0029] The support ring 3 includes a circular ring 301 and a connecting plate 302. A limiting groove is provided on the rear side of the circular ring 301. The connecting plate 302 is fixedly installed on the bottom inner side of the circular ring 301. The connecting plate 302 is connected to the bottom rear end of the base plate 1.

[0030] Specifically, the movement trajectory of the adjusting slider 5 is guided by the ring 301, so that it moves stably around the pipe.

[0031] The driving component 4 includes a servo motor 401, a driving wheel 402, and a driven wheel 403. The servo motor 401 is fixedly installed on the bottom of the connecting plate 302. The output end of the servo motor 401 is fixedly connected to the driving wheel 402. The driven wheel 403 is rotatably installed on the front side of the ring 301. An annular groove is provided on the front side of the driven wheel 403. The driving wheel 402 and the driven wheel 403 are meshed together.

[0032] Specifically, the servo motor 401 drives the drive wheel 402 to rotate, and the drive wheel 402 drives the driven wheel 403 to rotate on the rear side of the support ring 3, so that the adjustment slider 5 connected to the driven wheel 403 rotates accordingly.

[0033] The adjusting slider 5 includes a sliding plate 501, a limiting ball 502, a U-shaped plate 503, and a rotating shaft 504. The sliding plate 501 fits against the surface of the ring 301. The limiting ball 502 is fixedly connected to the front side of the sliding plate 501. The limiting ball 502 is slidably connected to the limiting groove of the ring 301. The U-shaped plate 503 is fixedly installed on the surface of the sliding plate 501. Bolts are threaded on the surface of the U-shaped plate 503. The bolts are corresponding to the annular groove of the driven wheel 403. The rotating shaft 504 is rotatably installed on the rear side of the sliding plate 501. The surface of the rotating shaft 504 has a through groove. Bolts are threaded on the rear side of the rotating shaft 504.

[0034] Specifically, the limiting ball 502 slides inside the limiting groove of the ring 301, causing the slide plate 501 to slide along the surface of the ring 301. The U-shaped plate 503 is connected to the driven wheel 403 by the bolt on the front side of the U-shaped plate 503. The rotating shaft 504 rotates on the rear side of the slide plate 501, so that when the slide plate 501 slides along the surface of the ring 301, the rod 601 can move with the rotating shaft 504. The rod 601 is limited and fixed by the bolt on the rear side of the rotating shaft 504.

[0035] The fixed rod 6 includes a rod body 601, a sliding sleeve 602 and a clamp 603. The rod body 601 is slidably inserted into the rear end of the adjusting slider 5. The sliding sleeve 602 is fixedly installed on the surface of the rod body 601, and the clamp 603 is provided at the bottom end of the sliding sleeve 602.

[0036] Specifically, the rod 601 slides inside the rotating shaft 504, thereby adjusting the distance between the rod 601 and the pipe according to the distance between the sliding plates 501 on the surface of the ring 301, and the detection probe 702 is limited and fixed by the clamp 603.

[0037] The flaw detector 7 includes an operating table 701 and a detection probe 702. A connecting line is fixedly installed on one side of the operating table 701, and the free end of the connecting line is connected to the detection probe 702. The detection probe 702 is located inside the fixture 603.

[0038] Specifically, the operation of the control device is controlled by the control panel 701, and the surface of the pipeline is inspected by the detection probe 702.

[0039] In summary: When using this utility model, the operator pushes the horizontal plate 201 to slide on the surface of the base plate 1, adjusts the position of the horizontal plate 201 according to the length of the pipe to be inspected, tightens the bolts on the top of the horizontal plate 201 to fix it, and pushes the moving table 202 to slide inside the groove of the horizontal plate 201 according to the pipe specifications. The position of the positioning roller 203 is adjusted, and the bolts on one side of the horizontal plate 201 are tightened to fix it. The pipe to be inspected is placed on the positioning roller 203, and the limiting band 204 is pulled to wrap around the top of the pipe and connect with the buckle of the horizontal plate 201 to fix the pipe. Coupling agent is applied to the weld seam of the pipe, and the inspection... The probe 702 is fixed to the clamp 603, and the rod 601 is pushed to move, causing the slide plate 501 to slide along the surface of the ring 301 until the probe 702 is attached to the weld of the pipe. The bolt on the back of the rotating shaft 504 is tightened to fix the rod 601. Then the bolt on the front of the U-shaped plate 503 is tightened to connect the U-shaped plate 503 to the driven wheel 403. The servo motor 401 drives the drive wheel 402 to rotate. Through the transmission of the driven wheel 403, the slide plate 501 is driven to slide on the ring 301, so that the probe 702 performs flaw detection around the weld along the surface of the pipe.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A pressure pipeline flaw detection and positioning device, characterized in that, It includes a base plate (1), a drive unit (4), an adjustment slider (5), a fixing rod (6) and a flaw detector (7). The surface of the base plate (1) is slidably mounted with a support seat (2) for positioning the pipeline, and a support ring (3) is fixedly mounted at the rear end of the base plate (1). The driving component (4) is disposed on the surface of the support ring (3), the adjusting slider (5) is slidably installed on the surface of the support ring (3), the driving component (4) is connected to the adjusting slider (5), the number of adjusting sliders (5) is two sets and they are arranged symmetrically, the fixing rod (6) is slidably inserted into the interior of the two sets of adjusting sliders (5), and is placed horizontally above the pressure pipe, the detection end of the flaw detector (7) is connected to the fixing rod (6) and is in contact with the surface of the pressure pipe.

2. The pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The support base (2) includes a horizontal plate (201), a moving platform (202), a positioning roller (203), and a limiting belt (204). The horizontal plate (201) is slidably installed on the surface of the base plate (1). The surface of the base plate (1) has holes. The top of the horizontal plate (201) is threaded with bolts, which correspond to the holes of the horizontal plate (201). The top of the horizontal plate (201) has a groove. The moving platform (202) is slidably installed in the groove of the horizontal plate (201). The groove of the horizontal plate (201) is threaded with bolts, which penetrate the surface of the moving platform (202). The top of the moving platform (202) is rotatably installed with a positioning roller (203). One end of the horizontal plate (201) is fixedly connected to the limiting belt (204). The other end of the horizontal plate (201) is provided with a buckle, which is correspondingly set to the free end of the limiting belt (204). The number of the moving stage (202) and the positioning roller (203) is two sets, and the two sets of moving stages (202) and positioning rollers (203) are symmetrically arranged on the top of the horizontal plate (201).

3. The pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The support ring (3) includes a circular ring (301) and a connecting plate (302). A limiting groove is provided on the rear side of the circular ring (301). The connecting plate (302) is fixedly installed on the bottom inner side of the circular ring (301). The connecting plate (302) is connected to the bottom rear end of the base plate (1).

4. The pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The driving component (4) includes a servo motor (401), a drive wheel (402), and a driven wheel (403). The servo motor (401) is fixedly installed at the bottom of the support ring (3). The output end of the servo motor (401) is fixedly connected to the drive wheel (402). The driven wheel (403) is rotatably installed on the front side of the support ring (3). An annular groove is provided on the front side of the driven wheel (403). The drive wheel (402) and the driven wheel (403) are meshed together.

5. A pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The adjusting slider (5) includes a sliding plate (501), a limiting ball (502), a U-shaped plate (503), and a rotating shaft (504). The sliding plate (501) fits against the surface of the support ring (3). The limiting ball (502) is fixedly connected to the front side of the sliding plate (501). The limiting ball (502) is slidably connected to the rear side of the support ring (3). The U-shaped plate (503) is fixedly installed on the surface of the sliding plate (501). Bolts are threaded on the surface of the U-shaped plate (503). The rotating shaft (504) is rotatably installed on the rear side of the sliding plate (501). A through groove is opened on the surface of the rotating shaft (504). Bolts are threaded on the rear side of the rotating shaft (504).

6. The pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The fixed rod (6) includes a rod body (601), a sliding sleeve (602) and a clamp (603). The rod body (601) is slidably inserted into the rear end of the adjusting slider (5). The sliding sleeve (602) is fixedly installed on the surface of the rod body (601), and the clamp (603) is provided at the bottom end of the sliding sleeve (602).

7. A pressure pipeline flaw detection and positioning device according to claim 1, characterized in that, The flaw detector (7) includes an operating table (701) and a detection probe (702). A connecting line is fixedly installed on one side of the operating table (701), and the free end of the connecting line is connected to the detection probe (702).

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