Pipeline magnetic particle detection device

Abstract

The utility model relates to a pipe magnetic powder detection device which comprises a detection table, a mounting frame arranged on the detection table, a magnetic suspension spray head arranged on the mounting frame, a support arranged on the detection table, a pipeline arranged on the support, two rotating rollers rotationally connected to the support, and the length direction of the rotating rollers is parallel to the length direction of the pipeline. The rotating rollers are arranged at the two ends of the pipeline correspondingly and abut against the outer surface of the pipeline, synchronous wheels are fixedly connected to the same ends of the rotating rollers, the outer surfaces of the synchronous wheels are jointly sleeved with a synchronous belt, a first motor is arranged on the support, and an output shaft of the first motor is coaxially and fixedly connected with one rotating roller. The rotating roller rotates to drive the pipeline to rotate on the support, and therefore circumferential all-directional detection of the pipeline is achieved. The pipeline detection device has the effect of improving the detection efficiency of the pipeline.

Description

Technical Field

[0001] The present application relates to the technical field of pipe inspection, and in particular to a pipeline magnetic particle inspection device. Background Art

[0002] Magnetic particle testing is a commonly used non-destructive testing method. The usual practice is to magnetize the pipe surface and then apply magnetic powder. If defects such as cracks, slag inclusions and pores appear on the pipe surface, these defects will destroy the continuity of the pipe surface, causing the magnetic lines of force to be distorted at the defects. Some magnetic lines of force will escape the material surface, forming a leakage magnetic field. The applied magnetic powder will be attracted by the leakage magnetic field and gather at the defect, forming a visible magnetic mark. By observing and analyzing the magnetic marks, the location, shape and size of the pipe defects can be quickly determined.

[0003] When inspecting for damage on the pipeline surface, in order to conduct a full-scale flaw detection on the pipeline, workers need to manually rotate the pipeline to adjust the inspection surface of the pipeline after completing the flaw detection of the pipeline axis length. However, manual rotation of the pipeline is difficult, and the rotation process consumes a lot of time and effort, resulting in reduced inspection efficiency and obvious shortcomings. Utility Model Content

[0004] In order to improve the detection efficiency of pipelines, the present application provides a pipeline magnetic particle detection device.

[0005] The pipeline magnetic particle inspection device provided in this application adopts the following technical solution:

[0006] A pipeline magnetic particle detection device includes a detection platform, a mounting frame is provided on the detection platform, a magnetic suspension nozzle is provided on the mounting frame, a bracket is provided on the detection platform, a pipeline is provided on the bracket, two rotating rollers are rotatably connected to the bracket, the length direction of the rotating rollers is parallel to the length direction of the pipeline, the rotating rollers are respectively provided at both ends of the pipeline and abut against the outer surface of the pipeline, a synchronous wheel is fixedly connected to the same end of the rotating roller, the outer surface of the synchronous wheel is commonly sleeved with a synchronous belt, a first motor is provided on the bracket, and the output shaft of the first motor is coaxially and fixedly connected to one of the rotating rollers.

[0007] By adopting the above technical solution, when it is necessary to inspect the pipeline, the pipeline is placed between the two rotating rollers on the bracket, and then the magnetic suspension nozzle is used to perform the first inspection on the pipeline. After the first inspection is completed, the worker starts the first motor, and the first motor drives the two rotating rollers to rotate through the synchronous wheel and the synchronous belt. The rotation of the rotating rollers drives the pipeline to rotate on the bracket. When the new area to be inspected rotates to the bottom of the magnetic suspension nozzle, the new inspection area of the pipeline is inspected, thereby realizing circumferential and all-round inspection of the pipeline. The rotating rollers automatically drive the pipeline to rotate, saving the worker the step of manually rotating the pipeline, thereby improving the inspection efficiency of the pipeline.

[0008] Optionally, a fixed plate is provided on the detection platform, and a limit assembly is provided on the fixed plate, and the limit assembly includes guide rods arranged at both ends of the fixed plate, and rack plates are slidably connected to the guide rods, and the toothed ends of the two rack plates are meshed with each other and are provided with gears, and the gears are rotatably connected to the fixed plate, and a limit plate corresponding to the rack plates is slidably connected to the detection platform, one end of the limit plate is connected to the rack plate, and the other end is slidably connected to the guide rod, and a second motor is provided on the surface of the fixed plate facing away from the gear, and the output shaft of the second motor is coaxially and fixedly connected to the gear.

[0009] By adopting the above technical solution, before the pipeline rotates, the worker starts the second motor, and the second motor drives the gear to rotate forward. Under the guidance of the two guide rods, the positive rotation of the gear drives the two meshed rack plates to move toward the direction close to the outer wall of the pipeline. The movement of the rack plates drives the two limit plates to move. When the two limit plates are in contact with the outer wall of the pipeline, the second motor is turned off. Under the restriction of the two limit plates, the pipeline cannot detach from the bracket, thereby reducing the possibility of the pipeline rolling out of the bracket during rotation and ensuring the smooth rotation of the pipeline.

[0010] Optionally, a support plate is provided at one end of the detection platform away from the fixed plate, the support plate is provided with a support groove that slides with the pipeline, and the fixed plate is provided with a fixing component that fixes the pipeline to the fixed plate.

[0011] By adopting the above technical solution, the arrangement of the support plate and the fixing assembly improves the stability of the pipeline on the bracket, avoids the pipeline from rolling out of the bracket due to external force during inspection, and ensures the smooth progress of the pipeline inspection process.

[0012] Optionally, the fixing assembly includes a fixing frame arranged on the fixing plate, a supporting tube is provided on the fixing frame, a third screw is rotatably connected to the inside of the supporting tube, the third screw is coaxially fixedly connected to the gear, a frustum is threadedly connected to the third screw, a plurality of support rods are equidistantly and evenly distributed on the outer surface of the frustum, and the plurality of support rods are slidably connected to the surface of the frustum along the busbar direction of the frustum, and a limiting hole corresponding to the support rod is opened circumferentially on the supporting tube, the limiting hole is vertically arranged, one end of the support rod passes through the limiting hole and is provided with a top support plate, and the top support plate abuts against the inner wall of the pipe.

[0013] By adopting the above technical solution, when the second motor drives the gear to rotate in the opposite direction, the two limit plates gradually move away from the pipe. At this time, the third screw rotates in the opposite direction to drive the table to move from the small diameter end to the large diameter end, and the support rod moves along the busbar of the table in the vertical direction toward the limit hole. The height of the support rod extending out of the limit hole continues to increase, so that the top support plate gradually approaches the inner wall of the pipe. When multiple top support plates are all in contact with the inner wall of the pipe, the inner wall of the pipe is fixed by multiple top support plates. At this time, the pipe is fixed on the inspection table and the stability of the pipe is improved. When the pipe needs to be rotated, the second motor drives the gear and the third screw to rotate forward, and the two limit plates gradually approach the pipe, and the top support plate gradually moves away from the inner wall of the pipe. The fixing effect of the fixing component disappears, ensuring that the pipe is rotated smoothly.

[0014] Optionally, the bottom end of the support rod is fixedly connected to a limiting block, and the frustum is provided with a limiting groove slidably connected to the limiting block along the busbar direction, and both the limiting block and the limiting groove are wedge-shaped.

[0015] By adopting the above technical solution, under the limitation of the limit block and the limit groove, the support rod can only move along the direction of the cone busbar, thereby reducing the possibility of the support rod tilting during the movement, and ensuring that the support rod drives the top support plate away from or close to the inner wall of the pipe smoothly.

[0016] Optionally, movable grooves are provided at both opposite ends of the detection platform, and the length direction of the movable grooves is parallel to the length direction of the detection platform. A first screw and a second screw are rotatably connected in the two movable grooves respectively, and one end of the support plate is rotatably connected to the first screw, and the other end is threadedly connected to the second screw.

[0017] By adopting the above technical solution, when the pipeline needs to be inspected, the worker rotates the first screw, and the rotation of the first screw drives the mounting frame to move along the length direction of the inspection platform. During the movement of the mounting frame, the magnetic suspension nozzle sprays the magnetic suspension on the outer wall of the pipeline in all directions, avoiding the step of manually moving the magnetic suspension nozzle for spraying, thereby further improving the inspection efficiency.

[0018] Optionally, one end of the mounting bracket is threadedly connected to the first screw rod, and the other end is rotatably connected to the second screw rod.

[0019] By adopting the above technical solution, when the length of the pipeline changes, the worker rotates the second screw, and the rotation of the second screw drives the support plate to move along the length direction of the detection platform. When the end side of the pipeline is supported by the support groove, the rotation of the second screw is stopped. This setting realizes the support and fixation of pipelines of different lengths, thereby improving the scope of use of the detection device.

[0020] Optionally, an anti-slip pad is provided on the end surface of the top support plate close to the inner wall of the pipe.

[0021] By adopting the above technical solution, the provision of the anti-slip pad increases the friction between the top support plate and the inner wall of the pipe, thereby reducing the possibility of the pipe rolling on the bracket and improving the stability of the pipe on the bracket during flaw detection.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. In the embodiment of the present application, a rotating roller is provided. The rotation of the rotating roller drives the pipe on the bracket, thereby achieving omnidirectional circumferential inspection of the pipe. This arrangement realizes automatic rotation of the pipe, eliminating the need for workers to manually rotate the pipe, and improving the efficiency of pipe inspection.

[0024] 2. The embodiment of the present application sets a limit assembly to limit the position of the pipeline on the bracket, thereby reducing the possibility of the pipeline detaching from the bracket during rotation and ensuring smooth rotation of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of this application.

[0026] Figure 2 Schematic diagram of the positions of the first screw and the second screw in the embodiment of the present application.

[0027] Figure 3 It is a cross-sectional view of the fixing plate in the embodiment of the present application.

[0028] Figure 4 It is a schematic structural diagram of the limiting component in an embodiment of the present application.

[0029] Figure 5 It is a cross-sectional view of the support cylinder and the frustum in the embodiment of the present application.

[0030] Explanation of the accompanying symbols: 01, pipeline; 1, testing table; 2, mounting frame; 21, magnetic suspension nozzle; 3, bracket; 31, rotating roller; 32, synchronous wheel; 33, synchronous belt; 34, first motor; 4, moving groove; 41, first screw; 42, second screw; 5, fixing plate; 6, limiting assembly; 61, guide rod; 62, rack plate; 63, gear; 64, limiting plate; 65, second motor; 7, support plate; 71, supporting groove; 8, fixing assembly; 81, fixing frame; 82, supporting cylinder; 83, third screw; 84, round table; 85, support rod; 841, limiting groove; 851, limiting block; 821, limiting hole; 86, top support plate; 9, anti-slip pad. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a pipeline magnetic particle inspection device.

[0033] Reference Figure 1 and Figure 2 A pipeline magnetic particle detection device includes a detection platform 1, a mounting frame 2 is slidably connected to the detection platform 1, a magnetic suspension nozzle 21 is fixedly installed on the mounting frame 2, a bracket 3 is fixedly installed on the detection platform 1, a pipeline 01 to be detected is arranged on the bracket 3, and two rotating rollers 31 are rotatably connected to the bracket 3. The length direction of the rotating roller 31 is parallel to the length direction of the pipeline 01. The rotating rollers 31 are respectively arranged at both ends of the pipeline 01 and abut against the outer surface of the pipeline 01. The rotating rollers 31 extend from the same end of the bracket 3 and are fixedly connected with a synchronous wheel 32. The outer surface of the synchronous wheel 32 is commonly covered with a synchronous belt 33. A first motor 34 is fixedly installed on the outer wall of the bracket 3, and the output shaft of the first motor 34 is coaxially fixedly connected to one of the rotating rollers 31.

[0034] Reference Figure 1 and Figure 2 A movable groove 4 is provided at both opposite ends of the detection platform 1. The length direction of the movable groove 4 is parallel to the length direction of the detection platform 1. The first screw 41 and the second screw 42 are rotatably connected in the two movable grooves 4 respectively. One end of the mounting frame 2 is threadedly connected to the first screw 41, and the other end is rotatably connected to the second screw 42.

[0035] When it is necessary to inspect the pipe 01, the pipe 01 is placed between the two rotating rollers 31 on the bracket 3. Then the worker rotates the first screw 41. The first screw 41 rotates and drives the mounting frame 2 to move along the length direction of the pipe 01. During the movement of the mounting frame 2, the magnetic suspension nozzle 21 evenly applies the magnetic suspension on the outer surface of the pipe 01. Then the worker performs the first inspection on the pipe 01. After the first inspection is completed, the worker starts the first motor 34. The first motor 34 drives the two rotating rollers 31 to rotate through the synchronous wheel 32 and the synchronous belt 33. The rotating roller 31 rotates to drive the pipe 01 to rotate on the bracket 3. When the new area to be inspected rotates to the bottom of the magnetic suspension nozzle 21, the first screw 41 is rotated again to make the magnetic suspension nozzle 21 spray the magnetic suspension. After the spraying is completed, the worker inspects the new inspection area of the pipe 01. The arrangement of the first screw 41 and the rotating roller 31 realizes all-round inspection of the length direction and circumference direction of the pipe 01. The rotating roller 31 automatically drives the pipe 01 to rotate, which saves the worker the step of manually rotating the pipe 01, thereby improving the inspection efficiency of the pipe 01.

[0036] Reference Figure 3 and Figure 4 The gear 63 is connected to the fixed plate 5 at one end and the gear 64 is connected to the fixed plate 5 at the other end.

[0037] Before the pipe 01 needs to rotate, the worker starts the second motor 65, and the second motor 65 drives the gear 63 to rotate forward. Under the guidance of the two guide rods 61, the gear 63 rotates forward and drives the two meshed rack plates 62 to move along the length direction of the guide rods 61. The movement of the rack plates 62 drives the two limit plates 64 to gradually approach the outer wall of the pipe 01. When the two limit plates 64 are in contact with the outer wall of the pipe 01, the second motor 65 is turned off. At this time, the pipe 01 cannot be separated from the bracket 3 under the joint restriction of the two limit plates 64, thereby avoiding the possibility of the pipe 01 rolling out of the bracket 3 during rotation. The stability of the pipe 01 on the bracket 3 is improved, ensuring the smooth rotation of the pipe 01.

[0038] When the pipeline 01 needs to be inspected, the worker starts the second motor 65 again and drives the gear 63 to rotate in the opposite direction. The reverse rotation of the gear 63 drives the two limit plates 64 to gradually move away from the pipeline 01, preventing the limit plates 64 from affecting the damage detection of the pipeline 01.

[0039] Reference Figure 3 and Figure 4 The end of the testing platform 1 away from the fixed plate 5 is slidingly connected to the support plate 7, one end of the support plate 7 is threadedly connected to the second screw 42, and the other end is rotatably connected to the first screw 41. A support groove 71 is provided on the support plate 7, which slides with the pipe 01. The support groove 71 is circular. When placing the pipe 01 for the first time, the worker rotates the second screw 42, and the movement of the second screw 42 drives the top support plate 86 to move toward the direction of the pipe 01 to ensure that one end of the pipe 01 passes through the support groove 71 and is supported by the top support plate 86.

[0040] Reference Figure 3 、 Figure 4 and Figure 5 The cam 84 is connected to the gear 63 by a screw thread, and the cam 84 is connected to the gear 63 by a screw thread.

[0041] Reference Figure 3 、 Figure 4 and Figure 5 The surface of the support tube 82 is circumferentially provided with limiting holes 821 corresponding to the four support rods 85. The end of the support rod 85 away from the limiting block 851 passes through the limiting hole 821 and is fixedly connected to a top support plate 86. The top support plate 86 abuts against the inner wall of the pipe 01. The surface of the top support plate 86 close to the inner wall of the pipe 01 is fixedly connected with an anti-slip pad 9. The anti-slip pad 9 is used to increase the friction between the top support plate 86 and the pipe 01 and reduce the possibility of relative sliding.

[0042] When it is necessary to fix the pipe 01, the worker starts the second motor 65, and the second motor 65 drives the gear 63 and the third screw 83 to rotate in the opposite direction. At this time, the two limit plates 64 gradually move away from the pipe 01, and the table 84 moves from the small diameter end to the large diameter end along the length direction of the third screw 83. At this time, the support rod 85 moves along the busbar of the table 84 in the vertical direction toward the limit hole 821, and the height of the support rod 85 extending out of the limit hole 821 continues to increase, so that the top support plate 86 gradually approaches the inner wall of the pipe 01. When multiple top support plates 86 are all in contact with the inner wall of the pipe 01, the inner wall of the pipe 01 is fixed by multiple top support plates 86. When it is necessary to rotate the pipe 01, the second motor 65 drives the gear 63 and the third screw 83 to rotate forward. The gear 63 drives the two limit plates 64 to approach the pipe 01, and the third screw 83 drives the top support plate 86 away from the pipe 01 through the table 84. The fixing group of the fixing component 8 on the table 84 disappears, and the pipe 01 can be rotated smoothly.

[0043] The implementation principle of a pipeline magnetic particle inspection device according to an embodiment of the present application is as follows: when flaw detection is required on a pipeline 01, the pipeline 01 is placed between two rotating rollers 31 on a bracket 3, and then the pipeline 01 on the bracket 3 is fixed by a support plate 7 and a fixing assembly 8. After the fixation is completed, the first screw 41 is rotated, and the first screw 41 rotates and drives the mounting frame 2 to move along the length direction of the pipeline 01. During the movement of the mounting frame 2, the magnetic suspension spray head 21 evenly applies the magnetic suspension to the outer surface of the pipeline 01, and then the worker performs the first flaw detection on the pipeline 01;

[0044] After the first flaw detection is completed, the worker starts the second motor 65, and the second motor 65 drives the two limit plates 64 to abut against the outer wall of the pipe 01. At the same time, the fixing component 8 cancels the fixing effect on the pipe 01, and then starts the first motor 34. The first motor 34 drives the two rotating rollers 31 to rotate through the synchronous wheel 32 and the synchronous belt 33. The rotation of the rotating rollers 31 drives the pipe 01 to rotate on the bracket 3. When the new area to be inspected rotates to the bottom of the magnetic suspension nozzle 21, the first screw 41 is rotated again to make the magnetic suspension nozzle 21 spray the magnetic suspension. After the spraying is completed, the worker inspects the new inspection area of the pipe 01. The setting of the first screw 41 and the rotating roller 31 realizes all-round inspection of the length and circumference of the pipe 01. The rotating roller 31 automatically drives the pipe 01 to rotate, which saves the worker the step of manually rotating the pipe 01, thereby improving the inspection efficiency of the pipe 01.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pipeline magnetic particle inspection device, comprising a detection platform (1), a mounting frame (2) provided on the detection platform (1), a magnetic suspension nozzle (21) provided on the mounting frame (2), characterized in that: The detection platform (1) is provided with a bracket (3), a pipe (01) is provided on the bracket (3), two rotating rollers (31) are rotatably connected to the bracket (3), the length direction of the rotating rollers (31) is parallel to the length direction of the pipe (01), the rotating rollers (31) are respectively provided at both ends of the pipe (01) and abut against the outer surface of the pipe (01), a synchronous wheel (32) is fixedly connected to the same end of the rotating rollers (31), and a synchronous belt (33) is commonly sleeved on the outer surface of the synchronous wheel (32), a first motor (34) is provided on the bracket (3), and the output shaft of the first motor (34) is coaxially and fixedly connected to one of the rotating rollers (31).

2. A pipeline magnetic particle inspection device according to claim 1, characterized in that: The detection platform (1) is provided with a fixed plate (5), and a limit assembly (6) is provided on the fixed plate (5). The limit assembly (6) includes guide rods (61) provided at both ends of the fixed plate (5), and rack plates (62) are slidably connected to the guide rods (61). The toothed ends of the two rack plates (62) are meshed with a gear (63), and the gear (63) is rotatably connected to the fixed plate (5). A limit plate (64) corresponding to the rack plate (62) is slidably connected to the detection platform (1), one end of the limit plate (64) is connected to the rack plate (62), and the other end is slidably connected to the guide rod (61). A second motor (65) is provided on the surface of the fixed plate (5) away from the gear (63), and the output shaft of the second motor (65) is coaxially fixedly connected to the gear (63).

3. A pipeline magnetic particle inspection device according to claim 2, characterized in that: A support plate (7) is provided at one end of the detection platform (1) away from the fixing plate (5); a support groove (71) is provided on the support plate (7) for slidingly engaging with the pipe (01); and a fixing assembly (8) is provided on the fixing plate (5) for fixing the pipe (01) on the fixing plate (5).

4. A pipeline magnetic particle inspection device according to claim 3, characterized in that: The fixing assembly (8) includes a fixing frame (81) arranged on the fixing plate (5), a supporting tube (82) is provided on the fixing frame (81), a third screw (83) is rotatably connected inside the supporting tube (82), the third screw (83) is coaxially fixedly connected to the gear (63), a truncated cone (84) is threadedly connected to the third screw (83), a plurality of supporting rods (85) are evenly distributed on the outer surface of the truncated cone (84), and the plurality of supporting rods (85) are slidably connected to the surface of the truncated cone (84) along the generatrix direction of the truncated cone (84), a limiting hole (821) corresponding to the supporting rod (85) is opened circumferentially on the supporting tube (82), the limiting hole (821) is vertically arranged, one end of the supporting rod (85) passes through the limiting hole (821) and is provided with a top support plate (86), and the top support plate (86) abuts against the inner wall of the pipe (01).

5. A pipeline magnetic particle inspection device according to claim 4, characterized in that: The bottom end of the support rod (85) is fixedly connected to a limiting block (851), and the truncated table (84) is provided with a limiting groove (841) along the busbar direction and is slidably connected to the limiting block (851), and both the limiting block (851) and the limiting groove (841) are wedge-shaped.

6. A pipeline magnetic particle inspection device according to claim 5, characterized in that: The detection platform (1) is provided with a movable groove (4) at both opposite ends, the length direction of the movable groove (4) being parallel to the length direction of the detection platform (1), and a first screw rod (41) and a second screw rod (42) being rotatably connected in the two movable grooves (4), respectively, and one end of the support plate (7) is rotatably connected to the first screw rod (41), and the other end is threadedly connected to the second screw rod (42).

7. The pipeline magnetic particle inspection device according to claim 6, characterized in that: One end of the mounting frame (2) is threadedly connected to the first screw rod (41), and the other end is rotatably connected to the second screw rod (42).

8. The pipeline magnetic particle inspection device according to claim 4, characterized in that: An anti-slip pad (9) is provided on the end surface of the top support plate (86) close to the inner wall of the pipe (01).

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