Pipeline welding seam nondestructive testing device

Abstract

The utility model provides a pipeline welding seam nondestructive testing device, and belongs to the field of pipeline testing equipment. According to the technical scheme, the device comprises a mounting ring frame, a moving mechanism and a limiting clamping mechanism, the moving mechanism and the limiting clamping mechanism are arranged on the mounting ring frame, a detection probe is arranged on the moving mechanism, the mounting ring frame comprises a pair of semi-annular frame bodies, a semi-annular gear ring is arranged on one side of each semi-annular frame body, and a semi-annular supporting plate is arranged on the other side of each semi-annular frame body; the semi-annular gear rings on the side faces of the pair of semi-annular frame bodies form an annular gear ring, semi-annular sliding grooves are formed in the outer side faces of the semi-annular frame bodies, the semi-annular sliding grooves in the pair of semi-annular frame bodies form an annular sliding groove, a movable frame is arranged in the annular sliding groove, and a detection probe is arranged on the movable frame. The device has the beneficial effects that the structure is simple, the use is convenient, pipeline welding seams of different specifications can be detected, the overall stability of the device is ensured by arranging the limiting clamping mechanism, and the detection efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of pipeline detection equipment, in particular to a pipeline weld nondestructive detection device. Background Art

[0002] The weld inspection of oil pipelines usually adopts non-destructive testing technology. Different non-destructive flaw detectors are used according to different inspection needs, which can be ultrasonic flaw detectors, eddy current flaw detectors, etc.

[0003] The existing non-destructive testing of welds in oil pipelines is usually carried out using manual handheld probes. Manual handheld probes are prone to problems such as difficulty in aligning the probe with the weld due to hand shaking or maintaining one action for a long time, and are prone to fatigue. Utility Model Content

[0004] The utility model aims to provide a pipeline weld nondestructive testing device which has a simple structure, is easy to use, can detect pipeline welds of different specifications, and at the same time provides a limit clamping mechanism to ensure the overall stability of the device, thereby greatly improving the detection efficiency.

[0005] The utility model is achieved through the following measures:

[0006] A pipeline weld nondestructive testing device, characterized in that it comprises a mounting ring frame, a moving mechanism and a limit clamping mechanism arranged on the mounting ring frame, wherein a detection probe is arranged on the moving mechanism;

[0007] The mounting ring frame comprises a pair of semi-annular frame bodies, a semi-annular gear ring is arranged on one side of the semi-annular frame body, a semi-annular support plate is arranged on the other side of the semi-annular frame body, and the semi-annular gear rings on the side surfaces of the pair of semi-annular frame bodies constitute an annular gear ring;

[0008] A semi-annular slide groove is provided on the outer side of the semi-annular frame body, a pair of semi-annular slide grooves on the semi-annular frame body constitute an annular slide groove, a movable frame is arranged in the annular slide groove, and the detection probe is arranged on the movable frame;

[0009] The limit clamping mechanism includes a mounting side plate arranged outside the middle position of the semi-annular support plates on both sides, an electric cylinder is arranged on the mounting side plate, the end of the electric push rod of the electric cylinder is arranged toward the center position of the mounting ring frame, and a pressure plate is arranged on the end of the electric push rod of the electric cylinder.

[0010] The specific features of the utility model also include:

[0011] The top of the inner wall on both sides of the semi-annular chute is provided with a semi-annular inner support plate, and an opening is provided between the semi-annular inner support plates on both sides;

[0012] The movable frame includes an arc-shaped slide plate arranged in the semi-annular slide groove, a pair of vertical rods are arranged in the opening and on the arc-shaped slide plate, the ends of the pair of vertical rods are arranged outside the semi-annular slide groove, and an inverted L-shaped support plate is arranged, the inverted L-shaped support plate includes a horizontal part arranged at the ends of the pair of vertical rods, a vertical part is vertically arranged at the end of the horizontal part, and the detection probe is arranged on the outside of the vertical part.

[0013] A driving motor is disposed on the top surface of the horizontal portion, and a driving gear is disposed at the motor shaft end of the driving motor through the horizontal portion, and the driving gear is meshed with the annular gear ring.

[0014] Supporting bull's eye wheels are arranged on both upper and lower sides of both ends of the arc-shaped slide plate, and limiting slide grooves are provided on the inner side of the semi-annular inner support plate and the bottom of the semi-annular slide groove corresponding to the position of the supporting bull's eye wheel, and the wheel end of the supporting bull's eye wheel is arranged in the corresponding limiting slide groove.

[0015] Mounting plates are correspondingly arranged at the ends of the semi-annular inner support plates of the semi-annular frames on both sides. Penetrating mounting holes are opened on the mounting plates. Mounting bolts are arranged in the mounting holes. Fastening nuts are arranged at the ends of the mounting bolts.

[0016] During installation, the mounting ring frame is first assembled. During assembly, the semi-circular frame is placed on both sides of the pipeline to be inspected, and then the semi-circular frame on both sides is brought close to form a closed state, and then the mounting bolts and the fastening nuts are used to limit and fix the mounting ring frame, and then the mounting ring frame is moved according to the position of the weld so that the detection probe corresponds to the position of the weld, and then the electric cylinder is controlled to push the pressing plate against the outer wall of the pipeline to fix the mounting ring frame on the periphery of the pipeline;

[0017] During detection, the driving motor is controlled to drive the driving gear to rotate, and the driving gear drives the arc-shaped slide plate and the inverted L-shaped support plate to rotate along the annular gear ring. The arc-shaped slide plate forms a limiting support, and the detection probe can rotate around the weld at the same time, thereby detecting the weld.

[0018] The beneficial effects of the utility model are: simple structure, easy use, and capable of detecting pipeline welds of different specifications; at the same time, the setting of the limit clamping mechanism ensures the overall stability of the device, greatly improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0020] Figure 2 Schematic diagram of the structure of the semi-annular frame in the embodiment of the utility model.

[0021] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0022] Figure 4 It is a structural schematic diagram of an embodiment of the utility model.

[0023] Figure 5 for Figure 4 A partial enlarged view of part B in the middle.

[0024] Figure 6 for Figure 4 A partial enlarged view of part C in the middle.

[0025] Figure 7 It is a schematic diagram of the internal structure of an embodiment of the utility model.

[0026] Figure 8 for Figure 7 A partial enlarged view of section D in the middle.

[0027] Among them, the accompanying drawings are marked as: 1. Mounting ring frame; 2. Moving mechanism; 3. Limit clamping mechanism; 4. Semi-annular frame; 5. Semi-annular support plate; 6. Semi-annular gear ring; 7. Semi-annular slide groove; 701, limit slide groove; 8. Semi-annular inner support plate; 9. Mounting plate; 10. Electric cylinder; 11. Pressure plate; 12. Arc slide plate; 13. Vertical rod; 14. Inverted L-shaped support plate; 15. Driving motor; 16. Driving gear; 17. Detection probe; 18. Mounting bolts; 19. Fastening nuts; 20. Support bull's eye wheel. DETAILED DESCRIPTION

[0028] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0029] See also Figure 1-8 , a pipeline weld nondestructive testing device, comprising a mounting ring frame 1, a moving mechanism 2 and a limit clamping mechanism 3 arranged on the mounting ring frame 1, and a detection probe 17 is arranged on the moving mechanism 2;

[0030] The mounting ring frame 1 includes a pair of semi-annular frames 4, a semi-annular gear ring 6 is provided on one side of the semi-annular frame 4, and a semi-annular support plate 5 is provided on the other side of the semi-annular frame 4. The semi-annular gear rings 6 on the side of the pair of semi-annular frames 4 constitute an annular gear ring;

[0031] A semi-annular slide groove 7 is provided on the outer side of the semi-annular frame 4. A pair of semi-annular slide grooves 7 on the semi-annular frame 4 form an annular slide groove. A movable frame is provided in the annular slide groove. A detection probe 17 is provided on the movable frame.

[0032] The limiting clamping mechanism 3 includes a mounting side plate arranged outside the middle position of the semi-circular support plates 5 on both sides, and an electric cylinder 10 is arranged on the mounting side plate. The end of the electric push rod of the electric cylinder 10 is arranged toward the center position of the mounting ring frame 1, and a pressure plate 11 is arranged at the end of the electric push rod of the electric cylinder 10.

[0033] Semi-annular inner support plates 8 are provided on the top of the inner walls on both sides of the semi-annular chute 7, and an opening is provided between the semi-annular inner support plates 8 on both sides;

[0034] The movable frame includes an arc-shaped slide plate 12 arranged in the semi-annular slide groove 7, a pair of vertical rods 13 are arranged in the opening and on the arc-shaped slide plate 12, the ends of the pair of vertical rods 13 are arranged outside the semi-annular slide groove 7, and an inverted L-shaped support plate 14 is arranged, and the inverted L-shaped support plate 14 includes a horizontal part arranged at the ends of the pair of vertical rods 13, a vertical part is vertically arranged at the end of the horizontal part, and a detection probe 17 is arranged on the outside of the vertical part.

[0035] A driving motor 15 is disposed on the top surface of the horizontal portion. A driving gear 16 is disposed at the motor shaft end of the driving motor 15 passing through the horizontal portion. The driving gear 16 is meshed with the annular gear ring.

[0036] Supporting bull's eye wheels 20 are provided on both upper and lower sides of both ends of the arc-shaped skateboard 12. Limiting grooves 701 are provided on the inner side of the semi-annular inner support plate 8 and the bottom of the semi-annular groove 7 corresponding to the position of the supporting bull's eye wheel 20. The wheel body end of the supporting bull's eye wheel 20 is arranged in the corresponding limiting groove 701.

[0037] Mounting plates 9 are correspondingly arranged at the ends of the semi-circular inner support plates 8 of the semi-circular frames 4 on both sides. The mounting plates 9 are provided with penetrating mounting holes, in which mounting bolts 18 are arranged, and fastening nuts 19 are arranged at the ends of the mounting bolts 18.

[0038] During installation, the mounting ring frame 1 is first assembled. During assembly, the semi-circular frame body 4 is placed on both sides of the pipeline to be inspected, and then the semi-circular frame bodies 4 on both sides are brought close to form a closed state, and then the mounting bolts 18 and the fastening nuts 19 are used to limit and fix them. Then, according to the position of the weld, the mounting ring frame 1 is moved so that the detection probe 17 corresponds to the position of the weld, and then the electric cylinder 10 is controlled to push the pressing plate 11 against the outer wall of the pipeline to fix the mounting ring frame 1 on the outer periphery of the pipeline;

[0039] During detection, the driving motor 15 is controlled to drive the driving gear 16 to rotate, and the driving gear 16 drives the arc-shaped slide plate 12 and the inverted L-shaped support plate 14 to rotate along the annular ring gear. The arc-shaped slide plate 12 forms a limiting support, and at the same time, the detection probe 17 can rotate around the weld, thereby detecting the weld.

[0040] Technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be elaborated here. Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A pipeline weld nondestructive testing device, characterized in that: It includes a mounting ring frame, a moving mechanism and a limit clamping mechanism arranged on the mounting ring frame, and a detection probe is arranged on the moving mechanism; The mounting ring frame comprises a pair of semi-annular frame bodies, a semi-annular gear ring is arranged on one side of the semi-annular frame body, a semi-annular support plate is arranged on the other side of the semi-annular frame body, and the semi-annular gear rings on the side surfaces of the pair of semi-annular frame bodies constitute an annular gear ring; A semi-annular slide groove is provided on the outer side of the semi-annular frame body, a pair of semi-annular slide grooves on the semi-annular frame body constitute an annular slide groove, a movable frame is arranged in the annular slide groove, and the detection probe is arranged on the movable frame; The limit clamping mechanism includes a mounting side plate arranged outside the middle position of the semi-annular support plates on both sides, an electric cylinder is arranged on the mounting side plate, the end of the electric push rod of the electric cylinder is arranged toward the center position of the mounting ring frame, and a pressure plate is arranged on the end of the electric push rod of the electric cylinder.

2. The pipeline weld nondestructive testing device according to claim 1 is characterized in that: The top of the inner wall on both sides of the semi-annular chute is provided with a semi-annular inner support plate, and an opening is provided between the semi-annular inner support plates on both sides; The movable frame includes an arc-shaped slide plate arranged in the semi-annular slide groove, a pair of vertical rods are arranged in the opening and on the arc-shaped slide plate, the ends of the pair of vertical rods are arranged outside the semi-annular slide groove, and an inverted L-shaped support plate is arranged, the inverted L-shaped support plate includes a horizontal part arranged at the ends of the pair of vertical rods, a vertical part is vertically arranged at the end of the horizontal part, and the detection probe is arranged on the outside of the vertical part.

3. The pipeline weld nondestructive testing device according to claim 2 is characterized in that: A driving motor is disposed on the top surface of the horizontal portion, and a driving gear is disposed at the motor shaft end of the driving motor through the horizontal portion, and the driving gear is meshed with the annular gear ring.

4. The pipeline weld nondestructive testing device according to claim 3 is characterized in that: Supporting bull's eye wheels are arranged on both upper and lower sides of both ends of the arc-shaped slide plate, and limiting slide grooves are provided on the inner side of the semi-annular inner support plate and the bottom of the semi-annular slide groove corresponding to the position of the supporting bull's eye wheel, and the wheel end of the supporting bull's eye wheel is arranged in the corresponding limiting slide groove.

5. The pipeline weld nondestructive testing device according to claim 4 is characterized in that: Mounting plates are correspondingly arranged at the ends of the semi-annular inner support plates of the semi-annular frames on both sides. Penetrating mounting holes are opened on the mounting plates. Mounting bolts are arranged in the mounting holes. Fastening nuts are arranged at the ends of the mounting bolts.

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