Device for detecting inner and outer anticorrosive layers of anticorrosive pipeline

Abstract

The utility model provides an anti-corrosion pipeline inner and outer anti-corrosion layer detection device which comprises a pipe rotating mechanism and a supporting arm, the pipe rotating mechanism is used for bearing and driving an anti-corrosion pipeline to rotate, and the supporting arm is parallel to the axis of the anti-corrosion pipeline at the top of the pipe rotating mechanism. A probe brush is arranged at the bottom of one end, close to the pipe rotating mechanism, of the supporting arm, a lifting adjusting mechanism for adjusting the height of the probe brush is arranged at the other end of the supporting arm, and a translation mechanism for driving the probe brush to move in the axial direction of the anti-corrosion pipeline at the top of the pipe rotating mechanism is arranged at the bottom of the lifting adjusting mechanism; according to the utility model, manual work can be replaced to automatically detect the inner and outer anticorrosive layers of the anticorrosive pipeline, the condition of leak detection is avoided, the labor cost is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline anti-corrosion layer detection, and specifically relates to a device for detecting the inner and outer anti-corrosion layers of an anti-corrosion pipeline. Background Art

[0002] At present, the anti-corrosion layer of pipelines is usually tested by spark detection. Spark detection of anti-corrosion layer is a surface detection method based on the principle of spark discharge. When the electrode contacts the surface of the object to be tested, an electric field generated by a high-voltage power supply is applied. When the electric field strength exceeds the dielectric breakdown electric field strength, a discharge channel is formed in the dielectric, generating sparks. According to the characteristics of the sparks, the quality of the anti-corrosion layer and the defects that exist can be judged.

[0003] At present, spark detection usually uses a manual handheld probe brush to perform contact detection on the cleaned pipeline. This detection method is greatly affected by human factors, is prone to missed detection, and has high labor costs and low efficiency.

[0004] Therefore, it is necessary to design an anti-corrosion pipeline internal and external anti-corrosion layer detection device that can automatically replace manual inspection of pipeline anti-corrosion layers to avoid missed inspections, reduce labor costs, and improve detection efficiency to solve the current technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides a device for detecting the internal and external anti-corrosion layers of anti-corrosion pipelines, which can automatically replace manual inspection of the anti-corrosion layer of pipelines, avoid missed inspections, reduce labor expenses, and improve inspection efficiency.

[0006] The technical solution of the utility model is: a device for detecting the inner and outer anti-corrosion layers of an anti-corrosion pipeline, comprising a rotating tube mechanism and a support arm, wherein the rotating tube mechanism is used to carry and drive the anti-corrosion pipeline to rotate, the support arm is parallel to the axis of the anti-corrosion pipeline at the top of the rotating tube mechanism, a probe brush is arranged at the bottom of one end of the support arm close to the rotating tube mechanism, a lifting and adjusting mechanism for adjusting the height of the probe brush is arranged at the other end of the support arm, and a translation mechanism for driving the probe brush to move axially along the anti-corrosion pipeline at the top of the rotating tube mechanism is arranged at the bottom of the lifting and adjusting mechanism.

[0007] The pipe rotating mechanism comprises a first bracket and a second bracket, wherein two first rollers corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the first bracket, and two second rollers corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the second bracket, and a driving component for driving the two second rollers to rotate synchronously and in the same direction is arranged inside the second bracket.

[0008] The driving assembly has a driving motor arranged inside the second bracket, the driving motor is provided with a driving wheel, the end of the second roller is provided with a driven wheel corresponding to the driving wheel, and the driving wheel and the driven wheel are connected by a chain transmission.

[0009] The second roller is connected to the corresponding first roller via a transmission shaft.

[0010] A retaining edge is fixedly provided on one end of the second roller which is away from the first roller, and the retaining edge corresponds to the end of the anti-corrosion pipe on the top of the rotating pipe mechanism.

[0011] The translation mechanism comprises a first screw rod, first guide rods parallel to the first screw rod are symmetrically arranged on both sides of the first screw rod, a first driving motor for driving the first screw rod to rotate is arranged at the end of the first screw rod, a first slider is slidably arranged on the first guide rod, the first slider is threadedly connected to the first screw rod, and the lifting and lowering adjustment mechanism is arranged on the top of the first slider.

[0012] The lifting and lowering adjustment mechanism includes a second screw rod rotatably arranged on the top of the first slider, second guide rods parallel to the second screw rod are symmetrically arranged on both sides of the second screw rod, a second driving motor driving the second screw rod to rotate is arranged at the end of the second screw rod, a second slider is slidably arranged on the second guide rod, the second slider is threadedly connected to the second screw rod, and one end of the support arm is fixedly connected to the second slider.

[0013] The support arm has a cross bar vertically fixedly connected to the second slider, and a diagonal tie rod is arranged between the top of one end of the cross bar away from the second slider and the top of the second slider.

[0014] Beneficial effects of the utility model:

[0015] (1) The utility model can replace manual work to automatically detect the internal and external anti-corrosion layers of anti-corrosion pipelines, avoid missed inspections, reduce labor costs, and improve inspection efficiency;

[0016] (2) The anti-corrosion pipe to be inspected is placed on the top of the rotating tube mechanism. The lifting and adjusting mechanism adjusts the height of the support arm and the probe brush at one end thereof so that the probe brush contacts the inner bottom or outer top of the anti-corrosion pipe. The rotating tube mechanism drives the anti-corrosion pipe to rotate at a uniform speed. Each time the rotating tube mechanism drives the anti-corrosion pipe to rotate one circle, the translation mechanism drives the probe brush to move from one end of the anti-corrosion pipe by 0.8 to 1 length of the probe brush until the probe brush moves to the other end of the anti-corrosion pipe, completing an inspection of the inner or outer side of the anti-corrosion pipe. Then the translation mechanism drives the probe brush to be withdrawn from the anti-corrosion pipe. The lifting and adjusting mechanism drives the support arm to drive the probe brush to move so that the probe brush contacts the outer top or inner bottom of the anti-corrosion pipe. The rotating tube mechanism and the translation mechanism repeat the above actions to perform another inspection.

[0017] (3) The height of the probe brush can be flexibly adjusted within a certain range through the lifting and adjusting mechanism. It can be used to match the detection of anti-corrosion pipelines with different outer diameters and inner diameters within a certain range, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural schematic diagrams of the device for detecting the internal and external anti-corrosion layers of anti-corrosion pipelines in the utility model.

[0019] Figure 2 This is one of the structural schematic diagrams of the device for detecting the internal and external anti-corrosion layers of anti-corrosion pipelines in the utility model. DETAILED DESCRIPTION

[0020] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is by no means intended to limit the present invention and its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete and to fully express the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0021] The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 and 2As shown, the device for detecting the internal and external anti-corrosion layers of anti-corrosion pipelines comprises a rotating tube mechanism 1 and a supporting arm 4. The rotating tube mechanism 1 is used to carry and drive the anti-corrosion pipeline to rotate. The supporting arm 4 is parallel to the axis of the anti-corrosion pipeline at the top of the rotating tube mechanism 1. A probe brush 5 is arranged at the bottom of one end of the supporting arm 4 close to the rotating tube mechanism 1, and a lifting and adjusting mechanism 3 for adjusting the height of the probe brush 5 is arranged at the other end of the supporting arm 4. A translation mechanism 2 for driving the probe brush 5 to move axially along the anti-corrosion pipeline at the top of the rotating tube mechanism 1 is arranged at the bottom of the lifting and adjusting mechanism 3; in this embodiment, the anti-corrosion pipeline to be detected is placed on the top of the rotating tube mechanism 1, and the lifting and adjusting mechanism 3 adjusts the height of the probe brush 5 at the supporting arm 4 and one end thereof so that the probe brush 5 contacts the inner bottom or outer top of the anti-corrosion pipeline, and the rotating tube mechanism 1 drives the anti-corrosion pipeline to rotate at a uniform speed. Every time the rotating tube mechanism 1 drives the anti-corrosion pipeline to rotate one circle, the translation mechanism The structure 2 drives the probe brush 5 to move a distance of 0.8 to 1 length of the probe brush 5 from one end of the anti-corrosion pipe until the probe brush 5 moves to the other end of the anti-corrosion pipe, completing an inspection of the inside or outside of the anti-corrosion pipe. Then the translation mechanism 2 drives the probe brush 5 to be pulled out of the anti-corrosion pipe, and the lifting and adjusting mechanism 3 drives the support arm 4 to move the probe brush 5, so that the probe brush 5 contacts the outer top or inner bottom of the anti-corrosion pipe. The rotating tube mechanism 1 and the translation mechanism 2 repeat the above actions to perform an inspection. This can automatically replace manual inspection of the inner and outer anti-corrosion layers of the anti-corrosion pipe, avoid missed inspections, reduce labor costs, and improve inspection efficiency. In addition, the lifting and adjusting mechanism 3 can flexibly adjust the height of the probe brush 5 within a certain range, and can match the inspection of anti-corrosion pipes with different outer and inner diameters within a certain range, and has a wide range of applications.

[0023] In some embodiments, the pipe rotating mechanism 1 has a first bracket 11 and a second bracket 12. Two first rollers 13 corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the first bracket 11, and two second rollers 14 corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the second bracket 12. A driving component for driving the two second rollers 14 to rotate synchronously and in the same direction is arranged inside the second bracket 12. The driving component drives the two second rollers 14 to rotate synchronously and in the same direction. When the two second rollers 14 rotate synchronously and in the same direction, they drive the anti-corrosion pipe to be inspected on the top to rotate. By controlling the uniform speed of the driving component, the transportation rotation of the anti-corrosion pipe to be inspected can be controlled.

[0024] In some embodiments, the driving assembly has a driving motor 16 arranged inside the second bracket 12, and a driving wheel 17 is arranged on the driving motor 16. A driven wheel 18 corresponding to the driving wheel 17 is arranged at the end of the second roller 14. The driving wheel 17 and the driven wheel 18 are connected by a chain transmission. The driving wheel 17 and the driven wheel 18 are both sprockets. The driving motor drives the driving wheel 17 to rotate, and the driving wheel 17 is transmitted between the chain and the driven wheel 18 to drive the two second rollers 14 to rotate synchronously in the same direction; wherein the driving motor is a servo motor, and the servo motor has high control accuracy. The number of rotations of the anti-corrosion steel pipe to be tested can be counted through conversion calculation.

[0025] In some embodiments, the second roller 14 and the corresponding first roller 13 are connected via a transmission shaft 19, and the first roller 13 and the second roller 14 rotate synchronously in the same direction, and can smoothly drive the two ends of the anti-corrosion steel pipe to be tested to rotate.

[0026] In some embodiments, a retaining edge 15 is fixedly provided on the end of the second roller 14 facing away from the first roller 13, and the retaining edge 15 corresponds to the end of the anti-corrosion pipe at the top of the rotating pipe mechanism 1. The retaining edge has a blocking and positioning function on the end of the anti-corrosion pipe at the top of the rotating pipe mechanism 1, and is used to position one end of the anti-corrosion pipe at the top of the rotating pipe mechanism 1.

[0027] In some embodiments, as a specific implementation of the translation mechanism 2, the translation mechanism 2 has a first screw 21, and first guide rods 22 parallel to the first screw 21 are symmetrically arranged on both sides of the first screw 21, and a first driving motor 24 for driving the first screw 21 to rotate is arranged at the end of the first screw 21, and a first slider 23 is slidably arranged on the first guide rod 22, and the first slider 23 is threadedly connected to the first screw 21, and the lifting and lowering adjustment mechanism 3 is arranged on the top of the first slider 23.

[0028] In some embodiments, as a specific implementation of the lifting and adjusting mechanism 3, the lifting and adjusting mechanism 3 has a second screw 31 rotatably arranged on the top of the first slider 23, and second guide rods 32 parallel to the second screw 31 are symmetrically arranged on both sides of the second screw 31. A second driving motor 34 that drives the second screw 31 to rotate is arranged at the end of the second screw 31, and a second slider 33 is slidably arranged on the second guide rod 32. The second slider 33 is threadedly connected to the second screw 31, and one end of the support arm 4 is fixedly connected to the second slider 33.

[0029] In some embodiments, the support arm 4 has a cross bar 41 vertically fixedly connected to the second slider 33. In order to enhance the stability of the cross bar 41, a diagonal rod 42 is provided between the top of one end of the cross bar 41 away from the second slider 33 and the top of the second slider 33.

[0030] So far, various embodiments of the present invention have been described in detail. In order to avoid obscuring the concept of the present invention, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0031] The above-mentioned embodiments only express some implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A device for detecting the inner and outer anti-corrosion layers of an anti-corrosion pipeline, characterized in that: It includes a rotating tube mechanism and a support arm. The rotating tube mechanism is used to carry and drive the anti-corrosion pipe to rotate. The support arm is parallel to the axis of the anti-corrosion pipe on the top of the rotating tube mechanism. A probe brush is arranged at the bottom of one end of the support arm close to the rotating tube mechanism. A lifting and adjusting mechanism for adjusting the height of the probe brush is arranged at the other end of the support arm. A translation mechanism for driving the probe brush to move axially along the anti-corrosion pipe on the top of the rotating tube mechanism is arranged at the bottom of the lifting and adjusting mechanism.

2. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 1 is characterized in that: The pipe rotating mechanism comprises a first bracket and a second bracket, wherein two first rollers corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the first bracket, and two second rollers corresponding to the bottom of the anti-corrosion pipe are symmetrically arranged on the top of the second bracket, and a driving component for driving the two second rollers to rotate synchronously and in the same direction is arranged inside the second bracket.

3. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 2 is characterized in that: The driving assembly has a driving motor arranged inside the second bracket, the driving motor is provided with a driving wheel, the end of the second roller is provided with a driven wheel corresponding to the driving wheel, and the driving wheel and the driven wheel are connected by a chain transmission.

4. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 2 is characterized in that: The second roller is connected to the corresponding first roller via a transmission shaft.

5. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 2 is characterized in that: A retaining edge is fixedly provided on one end of the second roller which is away from the first roller, and the retaining edge corresponds to the end of the anti-corrosion pipe on the top of the rotating pipe mechanism.

6. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 1 is characterized in that: The translation mechanism comprises a first screw rod, first guide rods parallel to the first screw rod are symmetrically arranged on both sides of the first screw rod, a first driving motor for driving the first screw rod to rotate is arranged at the end of the first screw rod, a first slider is slidably arranged on the first guide rod, the first slider is threadedly connected to the first screw rod, and the lifting and lowering adjustment mechanism is arranged on the top of the first slider.

7. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 6 is characterized in that: The lifting and lowering adjustment mechanism includes a second screw rod rotatably arranged on the top of the first slider, second guide rods parallel to the second screw rod are symmetrically arranged on both sides of the second screw rod, a second driving motor driving the second screw rod to rotate is arranged at the end of the second screw rod, a second slider is slidably arranged on the second guide rod, the second slider is threadedly connected to the second screw rod, and one end of the support arm is fixedly connected to the second slider.

8. The device for detecting the inner and outer anti-corrosion layers of anti-corrosion pipelines according to claim 7 is characterized in that: The support arm has a cross bar vertically fixedly connected to the second slider, and a diagonal tie rod is arranged between the top of one end of the cross bar away from the second slider and the top of the second slider.

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