Peeling strength detection device for anticorrosive coating of pipeline welded junction

Abstract

The utility model discloses a device for detecting the peel strength of an anticorrosive coating of a pipeline welded junction, and relates to the technical field of equipment for detecting the peel strength of an anticorrosive coating of a pipeline, in particular to a device for detecting the peel strength of an anticorrosive coating of a pipeline welded junction, which comprises a supporting component, a detecting component and a driving component, the detection part is mounted on the driving part; through cooperative arrangement of the supporting part, the detection part and the driving part, the peel strength detection device for the pipeline welded junction anticorrosive coating has the effect of detecting the peel strength of the pipeline anticorrosive coating, the supporting part is placed on the outer wall of a pipeline, and the driving part is supported by the supporting part; the driving component is used for driving the detection component to move close to or away from the pipeline anticorrosive coating, and the detection component pulls the anticorrosive coating stripping area, so that data of anticorrosive coating stripping strength detection is obtained, and the purpose of detecting the stripping strength of the pipeline anticorrosive coating is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline anticorrosive layer peeling strength detection equipment technical field, concretely is a pipeline weld joint anticorrosive layer peeling strength detection device. BACKGROUND

[0002] Pipeline outer anticorrosive layer peeling strength test is an important method for evaluating the adhesion performance of steel pipeline outer anticorrosive layer and pipe body. According to the standard SY / T4113.2-2018, the peeling strength test method of polyolefin outer anticorrosive layer of steel pipeline is specified. The standard is applicable to laboratory and field peeling strength test of polyolefin outer anticorrosive layer of steel pipeline such as two-layer structure polyethylene anticorrosive layer, three-layer structure polyethylene anticorrosive layer, three-layer structure polypropylene anticorrosive layer and radiation crosslinking polyethylene heat shrinkage tape. The field test generally uses manual force gauge pulling, and the force gauge is pulled to pull the pipeline anticorrosive layer peeling area, so that the force is measured by the force gauge, and the related data of pipeline anticorrosive layer peeling strength detection is obtained. However, when manually pulling the force gauge for testing, there are problems of uneven manual pulling and manual fatigue, which leads to inaccurate test data.

[0003] In the disclosed Chinese patent application, the publication number is CN219758048U, and the patent name is a device for detecting the peeling strength of a steel pipe anticorrosive layer. The utility model discloses a device for detecting the peeling strength of a steel pipe anticorrosive layer, which comprises a box body and a force gauge arranged in the box body: the lower end of the force gauge is provided with a clamp, and the clamp is used for clamping the test area of the steel pipe anticorrosive layer; the force gauge is also connected with a force applying assembly, and the force applying assembly is used for controlling the force gauge to rise so that the test area clamped by the clamp is pulled up; and the bottom of the box body is also connected with a plurality of rollers, and each roller is used for supporting the box body to roll on the surface of the steel pipe anticorrosive layer. Although the prior art can realize the peeling strength test of the pipeline anticorrosive layer, the prior art has certain limitations in specific implementation.

[0004] In the specific implementation of the prior art, the rollers are installed at the bottom of the box body. When the peeling strength test is carried out, the anticorrosive layer peeling area needs to be pulled by a force measuring device. In order to ensure the accuracy of the data, the force gauge needs to pull the anticorrosive layer peeling area in a relatively stable manner. However, the prior art sets rollers at the bottom of the box body, which makes the box body unable to be effectively and stably fixed on the pipeline, thereby causing large errors in the data of the anticorrosive layer peeling area strength test. UTILITY MODEL CONTENTS

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the utility model provides a pipeline weld joint anticorrosive layer peeling strength detection device, which solves the problems raised in the background art.

[0007] (II) Technical solutions

[0008] To achieve the above object, the utility model discloses a pipeline weld joint anticorrosive layer peeling strength detection device through the following technical schemes, including support component, detection component, drive component, drive component installs on support component, detection component installs on drive component, support component includes support frame, two support shafts, two arc plates, two support shafts fixed mounting at the both ends below support frame, two arc plates are respectively installed on two support shafts, drive component includes support plate, two drive pieces, two drive pieces are respectively fixed mounting at the both ends above support frame, support plate fixed mounting at the output shaft end head of two drive pieces, and the output shaft synchronous lifting of two drive pieces drives support plate lifting.

[0009] Optionally, the detection component includes a clamp, a force measuring element, and a second flexible steel member, one end of the second flexible steel member is fixedly connected to the middle lower surface of the support plate, the other end of the second flexible steel member is fixedly installed with the fixed end of the force measuring element, the force measuring end of the force measuring element is hung with a first flexible steel member, and the other end of the first flexible steel member is fixedly connected to the clamp.

[0010] Optionally, the support frame includes two horizontal plates and two vertical plates, the two horizontal plates are respectively laid on the upper ends of the two vertical plates, and the horizontal plates are fixedly connected to the vertical plates, and one support leg is fixedly connected to the lower end of each of the vertical plates, and the lower ends of the two support legs are fixedly connected to the two ends of the support shaft.

[0011] Optionally, at least two hinge rings are fixedly installed on one side wall of the arc plate, the hinge rings are sleeved on the outer side wall of the support shaft and are rotationally connected thereto, and a rubber pad is fixedly installed on the other side wall of the arc plate.

[0012] Optionally, the two drive pieces are respectively fixedly installed on the two horizontal plates, a guide rod is fixedly connected to the horizontal plate, one end of the guide rod away from the horizontal plate penetrates through the support plate, and the guide rod is slidingly connected to the support plate.

[0013] Optionally, the drive piece is a servo electric cylinder.

[0014] (III) Beneficial effects

[0015] The utility model provides a pipeline weld joint anticorrosive layer peeling strength detection device, has the following beneficial effects:

[0016] 1. The pipeline weld joint anticorrosive layer peeling strength detection device has the effect of peeling strength detection of the pipeline anticorrosive layer through the cooperation of the supporting component, the detection component and the driving component, the supporting component is placed on the outer wall of the pipeline, the driving component is driven by the supporting component, the detection component is driven by the driving component to move close to or away from the pipeline anticorrosive layer, the detection component pulls the peeling area of the anticorrosive layer, and thus the data of the anticorrosive layer peeling strength detection is obtained, and the purpose of peeling strength detection of the pipeline anticorrosive layer is achieved.

[0017] 2. The supporting component is tightly attached to the anticorrosive layer on the outer wall of the pipeline through two arc-shaped plates, the arc-shaped plates are rotationally connected between the supporting shafts, the arc-shaped plates can adapt to pipelines with different diameters, and the applicability of the whole device to pipelines with different diameters is improved. Compared with the prior art, the arc-shaped plates can be stably placed or tightly attached to the outer wall of the pipeline, and are more stable, so that the whole device is prevented from deviating.

[0018] 3. The device has the effect of stably pulling the peeling area of the anticorrosive layer through the cooperation of the driving member, the supporting plate and the force measuring member. The output shaft of the driving member is extended, and the output shaft of the driving member drives the supporting plate to rise. The supporting plate drives the force measuring member to move through the second flexible steel member, and the force measuring member pulls the peeling area through the first flexible steel member and the clamp in sequence. After the peeling area is pulled to a certain extent, the output shaft of the driving member stops moving. At this time, the force measuring member stably detects the force data of the peeling area, and the tension data is measured through the force measuring member, that is, the peeling strength detection of the anticorrosive layer is realized. Compared with the prior art of manually pulling the peeling area, the driving member is used to drive the force measuring member to pull the peeling area, and the force measuring member can be in a stable state, and the detection data is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.

[0020] Figure 1 It is a perspective structural schematic view of the pipeline weld joint anticorrosive layer peeling strength detection device of the present application after being installed with the pipeline.

[0021] Figure 2 It is a perspective structural schematic view of the pipeline weld joint anticorrosive layer peeling strength detection device of the present application after being installed with the pipeline. Figure 1

[0022] Figure 3 It is a perspective structural schematic view of the pipeline weld joint anticorrosive layer peeling strength detection device of the present application after being installed with the pipeline.​

[0023] Figure 4 It is a three-dimensional structure schematic view of the clamp of the pipeline welding opening anticorrosive layer peeling strength detection device.

[0024] Figure 5 It is a three-dimensional structure schematic view of the support component of the pipeline welding opening anticorrosive layer peeling strength detection device.

[0025] In the figure: 1, pipeline; 2, anticorrosive layer; 201, peeling area; 3, support component; 301, horizontal plate; 302, vertical plate; 303, support leg; 304, support shaft; 305, arc plate; 306, rubber pad; 4, driving piece; 5, support plate; 6, clamp; 7, guide rod; 8, first flexible steel member; 9, force measuring piece; 10, second flexible steel member. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indication or implication.

[0027] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.

[0028] Please refer to Figures 1 to 5 The utility model provides technical scheme: anticorrosive layer 2 is laid on the outside wall of pipeline 1, and anticorrosive layer 2 is bonded with the outer wall of pipeline 1. This technical scheme is also applicable to the peeling strength detection of anticorrosive layer 2 at the pipeline interface (the end joint of two pipelines, the welding of the pipeline port edge of two pipelines). When the peeling detection of anticorrosive layer 2 is carried out, the local part of anticorrosive layer 2 needs to be cut, so that anticorrosive layer 2 forms a small strip, that is, peeling area 201, as shown in the figure.Figure 2 .

[0029] The pipeline weld joint anticorrosion layer peeling strength detection device comprises a support component 3, a detection component and a driving component.

[0030] The support component 3 is placed on the outer wall of the pipeline 1, the driving component is supported by the support component 3, the detection component is driven by the driving component to move close to or away from the anticorrosion layer 2 on the pipeline 1, the detection component pulls the peeling area 201 of the anticorrosion layer 2, and thus the data of the anticorrosion layer 2 peeling strength detection is obtained, and the purpose of the pipeline anticorrosion layer peeling strength detection is achieved.

[0031] The support component 3 comprises a support frame, two support shafts 304 and two arc-shaped plates 305, the two support shafts 304 are fixedly installed below the two ends of the support frame, and the two arc-shaped plates 305 are rotationally installed on the two support shafts 304 respectively.

[0032] The support frame is in the shape of a hollow square. The arc-shaped plate 305 is used to contact the outer wall of the anticorrosion layer 2, and the arc-shaped plate 305 is tightly attached to the outer wall of the anticorrosion layer 2. The arc-shaped plate 305 is rotationally connected between the support shaft 304, and can adapt to pipelines 1 with different diameters, thereby improving the applicability of the entire device to pipelines with different diameters.

[0033] The driving component comprises a support plate 5 and two driving members 4, the two driving members 4 are fixedly installed above the two ends of the support frame, and the support plate 5 is fixedly installed at the output shaft end of the two driving members 4. The output shafts of the two driving members 4 synchronously drive the support plate 5 to ascend and descend. The driving member 4 adopts a servo electric cylinder.

[0034] The two driving members 4 are used to synchronously drive the support plate 5 to ascend and descend. The driving member 4 can adopt a servo electric cylinder, but is not limited thereto, and can also adopt an electric push rod and the like. After the driving member 4 is started, the output shaft (piston shaft) of the driving member 4 is extended and retracted, and the output shaft of the driving member 4 drives the support plate 5 to ascend or descend.

[0035] The detection component comprises a clamp 6, a force measuring member 9 and a second flexible steel member 10. One end of the second flexible steel member 10 is fixedly connected to the middle lower surface of the support plate 5, the other end of the second flexible steel member 10 is fixedly installed to the fixed end of the force measuring member 9, the force measuring end of the force measuring member 9 is hung with a first flexible steel member 8, and the other end of the first flexible steel member 8 is fixedly connected to the clamp 6.

[0036] The clamp 6 is also a stripping clamp, and the clamp 6 is a clamp with anti-skid and self-locking functions. The clamp 6 is used for clamping and fixing the free end of the stripping area 201 of the anticorrosive layer 2. The force measuring element 9 is a force gauge in the technical solution of the force gauge disclosed in CN219758048U. The first flexible steel member 8 and the second flexible steel member 10 are one of a steel wire rope and a chain. In the implementation, the output shaft of the driving element 4 extends and pushes the support plate 5 away from the anticorrosive layer 2. The support plate 5 drives the force measuring element 9 to move through the second flexible steel member 10. The force measuring element 9 pulls the stripping area 201 through the first flexible steel member 8 and the clamp 6 in turn, so as to realize that the force measuring element 9 pulls the stripping area 201 of the anticorrosive layer 2, and the pulling force data is measured through the force measuring element 9, that is, the anticorrosive layer 2 stripping strength detection is realized.

[0037] Specifically, the support frame includes two horizontal plates 301 and two vertical plates 302, the two horizontal plates 301 are respectively laid above the two ends of the two vertical plates 302, and the horizontal plate 301 is fixedly connected with the vertical plate 302. One support leg 303 is fixedly connected below each end of the vertical plate 302, and the two ends of the support shaft 304 are respectively fixedly connected with the lower ends of the two support legs 303.

[0038] Specifically, the support frame includes two horizontal plates 301 and two vertical plates 302, the two horizontal plates 301 are respectively laid above the two ends of the two vertical plates 302, and the horizontal plate 301 is fixedly connected with the vertical plate 302. One support leg 303 is fixedly connected below each end of the vertical plate 302, and the two ends of the support shaft 304 are respectively fixedly connected with the lower ends of the two support legs 303.

[0039] Further specifically, at least two hinged rings are fixedly installed on one side wall of the arc-shaped plate 305, the hinged rings are sleeved on the outer side wall of the support shaft 304 and are rotationally connected with the support shaft 304. The rubber pad 306 is fixedly installed on the other side wall of the arc-shaped plate 305.

[0040] Specifically, the support frame includes two horizontal plates 301 and two vertical plates 302, the two horizontal plates 301 are respectively laid above the two ends of the two vertical plates 302, and the horizontal plate 301 is fixedly connected with the vertical plate 302. One support leg 303 is fixedly connected below each end of the vertical plate 302, and the two ends of the support shaft 304 are respectively fixedly connected with the lower ends of the two support legs 303.

[0041] Further specifically, the two driving elements 4 are respectively fixedly installed on the two horizontal plates 301, the horizontal plate 301 is fixedly connected with the guide rod 7, one end of the guide rod 7 away from the horizontal plate 301 penetrates the support plate 5, and the guide rod 7 is slidingly connected with the support plate 5.

[0042] The horizontal plate 301 is used for supporting and fixing the driving member 4 and the guide rod 7. The guide rod 7 plays a guiding role and is parallel to the driving member 4. When the driving support plate 5 moves up and down, the support plate 5 slides along the guide rod 7, so that the support plate 5 is prevented from deviating.

[0043] When in use, the anticorrosive layer 2 is partially cut to form a small strip, i.e. the peeling area 201.

[0044] The device is placed on the outer wall of the pipeline 1 (actually placed on the outer wall of the anticorrosive layer 2), and the rubber pad 306 on the arc-shaped plate 305 is tightly attached to the outer wall of the anticorrosive layer 2. The free end of the peeling area 201 is clamped and fixed by the clamp 6. At the same time, the two driving members 4 are started. After the driving members 4 are started, the output shafts (piston shafts) of the driving members 4 are extended, and the output shafts of the driving members 4 push the support plate 5 to move up. The support plate 5 drives the force measuring member 9 to move through the second flexible steel member 10, and the force measuring member 9 pulls the peeling area 201 through the first flexible steel member 8 and the clamp 6 in sequence, so that the force measuring member 9 pulls the peeling area 201 of the anticorrosive layer 2. Then, the output shafts of the driving members 4 stop working. At this time, the force measuring member 9 stably detects the force data of the peeling area 201, and the pulling force data is measured by the force measuring member 9, i.e. the peeling strength detection of the anticorrosive layer is realized. Compared with the existing technology of manually pulling the peeling area, the driving members 4 are used to drive the force measuring member 9 to pull the peeling area, and the force measuring member 9 can be in a stable state, so that the detection data is more accurate.

[0045] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A device for detecting the peel strength of a corrosion protection layer of a pipe weld, characterized in that: Including support component (3), detection component, drive component, the drive component is installed on support component (3), and the detection component is installed on drive component; The support component (3) includes a support frame, two support shafts (304) and two arc-shaped plates (305), the two support shafts (304) are fixedly installed below both ends of the support frame, and the two arc-shaped plates (305) are rotatably installed on the two support shafts (304) respectively. The drive component includes a support plate (5) and two drive elements (4), the two drive elements (4) are fixedly installed above both ends of the support frame respectively, the support plate (5) is fixedly installed on output shaft ends of the two drive elements (4), and output shafts of the two drive elements (4) synchronously drive the support plate (5) to lift and lower.

2. The apparatus for detecting a peel strength of a corrosion protection layer of a pipe weld according to claim 1, characterized in that: The detection component includes a clamp (6), a force measuring element (9) and a second flexible steel member (10), one end of the second flexible steel member (10) is fixedly connected to a middle lower surface of the support plate (5), the other end of the second flexible steel member (10) is fixedly installed on a fixed end of the force measuring element (9), a first flexible steel member (8) is hungly installed on a force measuring end of the force measuring element (9), and the other end of the first flexible steel member (8) is fixedly connected to the clamp (6).

3. The apparatus for detecting a peel strength of a corrosion protection layer of a pipe weld according to claim 1, characterized in that: The support frame includes two horizontal plates (301) and two vertical plates (302), the two horizontal plates (301) are respectively laid above both ends of the two vertical plates (302), and the horizontal plate (301) is fixedly connected to the vertical plate (302); one support leg (303) is fixedly connected to the lower end of each of the two vertical plates (302), and the two ends of the support shaft (304) are fixedly connected to the lower ends of the two support legs (303) respectively.

4. The apparatus for detecting a peel strength of a corrosion protection layer of a pipe weld according to claim 3, characterized in that: At least two hinge rings are fixedly installed on one side wall of the arc-shaped plate (305), the hinge rings are sleeved on the outer side wall of the support shaft (304) and are rotatably connected to each other, and a rubber pad (306) is fixedly installed on the other side wall of the arc-shaped plate (305).

5. The apparatus for detecting a peel strength of a corrosion protection layer of a pipe weld bead according to claim 3, characterized in that: The two drive elements (4) are fixedly installed on the two horizontal plates (301) respectively, a guide rod (7) is fixedly connected to the horizontal plate (301), one end of the guide rod (7) away from the horizontal plate (301) penetrates the support plate (5), and the guide rod (7) is slidably connected to the support plate (5).

6. The apparatus for detecting a peel strength of a corrosion resistant coating of a pipe weld bead according to claim 5, characterized by: The drive element (4) is a servo electric cylinder.

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