A coated wear detection device

Abstract

The present application relates to wear-resistant detection technical field, especially to a kind of wear-resistant detection device of coating, including detection frame, the left side of the detection frame is equipped with rolling detection mechanism, the right side of the detection frame is equipped with hydraulic push rod, the right side of the hydraulic push rod is equipped with radial rotary drive mechanism, the inside of the detection frame is equipped with radial detection positioning mechanism, the rolling detection mechanism includes two fixed rods fixedly connected in the top wall and bottom wall of belt detection frame, and rotating shaft is fixedly installed between the two fixed rods.The present application is realized to the conveying of pipeline axial by hydraulic push rod driving rolling detection mechanism, while realizing the accurate detection of the radial thickness of pipeline coating by the cooperation setting between elastic sleeve, limit ring and oblique support rod, according to the detection result driving radial rotary drive mechanism to open, the effect of accurately positioning to the area of poor wear resistance is achieved, and the accuracy of pipeline coating wear-resistant detection is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of wear resistance testing technology, and more particularly to a wear resistance testing device for coatings. Background Technology

[0002] Various metal pipes are used in industrial transportation. To reduce corrosion on the surface of metal pipes, anti-corrosion coatings are required. However, most metal pipes are circular, and the radial coating thickness cannot be guaranteed to be uniform throughout the pipe. As a result, the surface of the metal pipe will be corroded to varying degrees. Therefore, it is necessary to regularly test the wear resistance of the coating on the surface of the metal pipe and to replenish the coating in severely damaged areas to ensure the service life of the pipe. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a wear resistance testing device for coatings, solving the technical problem of pipe damage caused by inconsistent coating thickness on metal pipe surfaces.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wear resistance testing device for a coating, comprising a testing frame, a rolling testing mechanism on the left side of the testing frame, a hydraulic push rod on the right side of the testing frame, a radial rotation drive mechanism on the right side of the hydraulic push rod, and a radial testing positioning mechanism inside the testing frame;

[0005] The rolling detection mechanism includes two fixed rods symmetrically fixedly connected to the top and bottom walls of the detection frame. A rotating shaft is fixedly installed between the two fixed rods. A positioning sleeve is rotatably installed on the outer side of the rotating shaft. An elastic sleeve is fixedly connected to the center of the positioning sleeve.

[0006] One end of the hydraulic push rod is fixedly connected to the right side wall of the testing frame. The radial rotation drive mechanism includes a positioning plate fixedly connected to the other end of the hydraulic push rod. A motor is fixedly connected to the right side of the positioning plate. A rotating disk is fixedly installed at the output end of the motor. The rotating disk is rotatably installed on the side wall of the positioning plate.

[0007] Preferably, the elastic sleeve has a limiting ring inside, the limiting ring is made of flexible material, and multiple inclined support rods are fixedly connected to the top and bottom walls of the limiting ring. The multiple inclined support rods are equidistantly arranged along the circumference of the limiting ring, and the ends of the inclined support rods are fixedly connected to longitudinal sliders. The longitudinal sliders are slidably mounted on the rotating shaft.

[0008] The inner sidewalls of the longitudinal sliders are all fixedly connected with conductive contact pieces. Multiple sets of conductive blocks are symmetrically arranged at the top and bottom of the rotating shaft. The resistance value of the multiple sets of conductive blocks gradually increases from the outside of the rotating shaft toward the center.

[0009] Preferably, a plurality of limiting rods are slidably installed on the inner side wall of the rotating disk, and the plurality of limiting rods are equidistantly arranged along the circumference of the rotating disk. A spring is fixedly connected to the inner side of the limiting rod, and an electromagnet is fixedly connected to the other end of the spring.

[0010] Preferably, the radial detection and positioning mechanism includes a limiting channel that extends through the side wall of the detection frame, and a plurality of elastic slide rods are slidably installed on the inner side wall of the limiting channel, and the plurality of elastic slide rods are equidistantly arranged along the circumference of the limiting channel;

[0011] An elastic slider is fixedly connected to the inner end of the elastic slide rod, and an elastic airbag is fixedly connected to the other end of the elastic slider. A piezoelectric ceramic is fixedly connected to the end of the elastic airbag.

[0012] The centers of the rotating disk and the limiting channel are both located on a straight line in the same horizontal direction, and the fixing rods are symmetrically arranged on both sides of the limiting channel;

[0013] Both the conductive contact and the conductive block are electrically connected to the hydraulic push rod and the motor.

[0014] By employing the above technical solution, the present invention provides a wear resistance testing device for coatings, which has at least the following beneficial effects:

[0015] 1. This invention uses a hydraulic push rod to drive a rolling detection mechanism to achieve axial transport of the pipeline. At the same time, through the cooperation of the elastic sleeve, the limiting ring and the inclined support rod, it achieves accurate detection of the radial thickness of the pipeline coating. Based on the detection results, the radial rotation drive mechanism is opened, which achieves the effect of accurate positioning of areas with poor wear resistance, and greatly improves the accuracy of wear resistance detection of pipeline coating.

[0016] 2. This invention utilizes the different radial thicknesses of the pipe to drive the longitudinal slider to slide to different degrees along the rotating shaft, thereby driving the conductive contact piece to contact and energize different conductive blocks. Based on the detection results, the radial rotation drive mechanism is driven to achieve precise positioning of the poor wear-resistant areas of the pipe. It has a high degree of automation and strong versatility, and can effectively improve the accuracy of pipe coating wear resistance detection results.

[0017] 3. This invention uses a radial rotation drive mechanism to rotate the pipe thickness difference area radially. At the same time, through the coordinated arrangement of the elastic slide bar, elastic air bladder and piezoelectric ceramic in the radial detection and positioning mechanism, it achieves accurate positioning of the pipe sidewall thickness difference area, thereby further improving the detection accuracy.

[0018] 4. This invention achieves stable clamping of the pipeline through a radial rotation drive mechanism. At the same time, the stable clamping of the pipeline is achieved through the cooperation between the electromagnet, spring and limit rod, which reduces the shaking of the pipeline during the detection process and further ensures the accuracy of the detection results.

[0019] 5. This invention uses a hydraulic push rod to drive a radial rotation drive mechanism and a radial positioning detection mechanism to slide relative to each other, thereby achieving comprehensive radial and axial detection of the pipe sidewall. This greatly improves the detection efficiency and accuracy of the pipe coating wear resistance, enables precise positioning of areas with poor wear resistance, and effectively improves the maintenance efficiency of the pipe. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a three-dimensional cross-sectional view of the internal structure of the rolling detection mechanism of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal side view of the rolling detection mechanism of the present invention;

[0024] Figure 4 This is a three-dimensional structural diagram showing the positional relationship between the radial rotation drive mechanism and the radial detection and positioning mechanism of the present invention;

[0025] Figure 5 This is a side view of the internal structure of the radial detection and positioning mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 7 This is a side view of the internal structure of the radial rotation drive mechanism of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B;

[0029] Figure 9 This is a schematic diagram of the pipe structure after installation according to the present invention.

[0030] In the diagram: 1. Detection frame; 2. Rolling detection mechanism; 20. Fixed rod; 21. Rotating shaft; 22. Positioning sleeve; 23. Elastic sleeve; 24. Limiting ring; 25. Diagonal support rod; 26. Longitudinal slider; 27. Conductive contact piece; 28. Conductive block; 3. Hydraulic push rod; 4. Radial rotation drive mechanism; 40. Positioning plate; 41. Motor; 42. Rotating disk; 43. Limiting top rod; 44. Spring; 45. Electromagnet; 5. Radial detection positioning mechanism; 50. Limiting channel; 51. Elastic slide bar; 52. Elastic slider; 53. Elastic airbag; 54. Piezoelectric ceramic. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please refer to Figures 1-4 A wear resistance testing device for a coating includes a testing frame 1, a rolling testing mechanism 2 on the left side of the testing frame 1, a hydraulic push rod 3 on the right side of the testing frame 1, a radial rotation drive mechanism 4 on the right side of the hydraulic push rod 3, and a radial testing positioning mechanism 5 inside the testing frame 1.

[0034] The rolling inspection mechanism 2 includes two fixed rods 20 symmetrically fixedly connected to the top and bottom walls of the inspection frame 1. A rotating shaft 21 is fixedly installed between the two fixed rods 20. A positioning sleeve 22 is rotatably installed on the outer side of the rotating shaft 21. An elastic sleeve 23 is fixedly connected to the center of the positioning sleeve 22. Before the wear resistance test of the pipe surface coating begins, the pipe is first inserted into the limiting channel 50 between the adjacent positioning sleeves 22, and the end of the pipe is inserted into the interior of the rotating disk 42. The radial rotation drive mechanism 4 stably clamps the side wall of the pipe. Then, the hydraulic push rod 3 is activated. By using the mutual separation of the positioning plate 40 and the inspection frame 1, a comprehensive axial inspection of the side wall of the pipe is achieved.

[0035] One end of the hydraulic push rod 3 is fixedly connected to the right side wall of the testing frame 1. The radial rotation drive mechanism 4 includes a positioning plate 40 fixedly connected to the other end of the hydraulic push rod 3. A motor 41 is fixedly connected to the right side of the positioning plate 40. A rotating disk 42 is fixedly installed at the output end of the motor 41. The rotating disk 42 is rotatably installed on the side wall of the positioning plate 40. According to the axial detection mechanism, the motor 41 is turned on, which drives the rotating disk 42 and the internal pipe to rotate synchronously. The radial detection positioning mechanism 6 is used to accurately locate the area with different radial thickness of the pipe. The hydraulic push rod 3 drives the rolling detection mechanism 2 to realize the axial transport of the pipe. At the same time, through the cooperation between the elastic sleeve 23, the limiting ring 24 and the inclined support rod 25, the radial thickness of the pipe coating is accurately detected. According to the detection result, the radial rotation drive mechanism 4 is driven to open, which achieves the effect of accurately locating the area with poor wear resistance and greatly improves the accuracy of the wear resistance detection of the pipe coating.

[0036] Example 2

[0037] Please refer to Figures 2-3 This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0038] The elastic sleeve 23 has a limiting ring 24 inside. The limiting ring 24 is made of flexible material. Multiple inclined support rods 25 are fixedly connected to the top and bottom walls of the limiting ring 24. The multiple inclined support rods 25 are equidistantly arranged along the circumference of the limiting ring 24. The ends of the inclined support rods 25 are fixedly connected to longitudinal sliders 26. The longitudinal sliders 26 are slidably mounted on the rotating shaft 21. When the hydraulic push rod 3 drives the detection frame 1 and the positioning plate 40 away from each other, the pipe slides relative to each other along the adjacent elastic sleeves 23. When the thickness of the pipe sidewall is different, the contraction amplitude of the elastic sleeves 23 on both sides is different, which causes the limiting ring 24 to contract to different degrees. At this time, the inclined support rods 25 drive the longitudinal sliders 26 away from each other.

[0039] As a preferred technical solution in this embodiment, conductive contact pieces 27 are fixedly connected to the inner sidewalls of the longitudinal slider 26, and multiple sets of conductive blocks 28 are symmetrically arranged at the top and bottom of the rotating shaft 21. When the longitudinal slider 26 slides, the thickness difference of the axial sidewall of the pipe causes the longitudinal slider 26 to slide to different degrees, thereby causing the conductive contact pieces 27 to contact and conduct electricity with different conductive blocks 28. The resistance value of the multiple sets of conductive blocks 28 gradually increases from the outside of the rotating shaft 21 towards the center. When the thickness difference is large, the corresponding longitudinal slider 26 slides a larger amplitude along the rotating shaft 21. When the conductive contact 27 and the conductive block 28 with a smaller resistance come into contact and are energized, the radial thickness of the pipeline is different. It is necessary to detect and locate the specific damaged area. The hydraulic push rod 3 stops working, and the radial rotation drive mechanism 4 starts. The different radial thicknesses of the pipeline drive the longitudinal slider 26 to slide to different degrees along the rotation axis 21, which drives the conductive contact 27 to come into contact and be energized with different conductive blocks 28. Based on the detection results, the radial rotation drive mechanism 4 is driven to achieve accurate positioning of the poor wear resistance area of ​​the pipeline. It has a high degree of automation and strong versatility, and can effectively improve the accuracy of the pipeline coating wear resistance detection results.

[0040] Example 3

[0041] Please refer to Figures 7-8 This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0042] Multiple limiting rods 43 are slidably installed on the inner wall of the rotating disk 42. All limiting rods 43 are made of magnetic material and are equidistantly arranged along the circumference of the rotating disk 42. A spring 44 is fixedly connected to the inner side of each limiting rod 43, and an electromagnet 45 is fixedly connected to the other end of the spring 44. The magnetism of the electromagnet 45 and the limiting rod 43 are consistent, ensuring that under the action of electromagnetic repulsion, the limiting rod 43 slides away from the electromagnet 45. After the pipe is inserted into the rotating disk 42, the electromagnet 45 is activated. Under the action of electromagnetic repulsion, the limiting rod 43 slides away from the electromagnet 45, at which point the spring 44 is stretched. The limiting rod 43 achieves stable clamping of the pipe sidewall. Stable clamping of the pipe is achieved through the radial rotation drive mechanism 4. Simultaneously, the coordinated arrangement between the electromagnet 45, spring 44, and limiting rod 43 ensures stable clamping of the pipe, reducing pipe shaking during the testing process and further guaranteeing the accuracy of the test results.

[0043] Example 4

[0044] Please refer to Figures 1-9This embodiment is basically the same as Embodiment 1. This embodiment is made on the basis of Embodiment 1 and has the same beneficial effects as Embodiment 1. The same parts can be referred to each other, and will not be described in detail here.

[0045] The radial detection and positioning mechanism 5 includes a limiting channel 50 that runs through the side wall of the detection frame 1. Multiple elastic slide rods 51 are slidably installed on the inner side wall of the limiting channel 50. The multiple elastic slide rods 51 are equidistantly arranged along the circumference of the limiting channel 50. When the motor 41 is turned on, it drives the rotating disk 42 and the pipe to rotate continuously, thereby causing the pipe to rotate along the inner wall of the limiting channel 50. During the rotation of the pipe, its side wall contacts each elastic slide rod 51 radially, thereby achieving accurate detection of the specific thickness.

[0046] As a preferred technical solution in this embodiment, an elastic slider 52 is fixedly connected to the inner end of the elastic slide rod 51, and an elastic airbag 53 is fixedly connected to the other end of the elastic slider 52. A piezoelectric ceramic 54 is fixedly connected to the end of the elastic airbag 53. When the pipeline rotates, if there is a difference in thickness in the radial direction of the pipeline, the elastic slide rod 51 slides at different amplitudes. At this time, the elastic airbag 53 slides to different degrees, which causes the electrical signal on the piezoelectric ceramic 54 to be different. This enables precise positioning of the specific damaged area in the radial direction of the pipeline. When the electrical signal on the piezoelectric ceramic 54 is weaker, the radial thickness of the pipeline surface is thinner. At this time, the damage in the radial direction of the pipeline is more serious and the wear resistance is poor. During subsequent maintenance, the area is touched up with paint. The radial rotation drive mechanism 4 and the radial positioning detection mechanism 5 are driven to slide relative to each other by the hydraulic push rod 3, so as to realize the comprehensive detection of the radial and axial direction of the pipeline sidewall. This greatly improves the detection efficiency and accuracy of the wear resistance of the pipeline coating, enables precise positioning of areas with poor wear resistance, and effectively improves the maintenance efficiency of the pipeline.

[0047] In this preferred embodiment, the centers of the rotating disk 42 and the limiting channel 50 are both located on a straight line in the same horizontal direction. The fixing rods 20 are symmetrically arranged on both sides of the limiting channel 50 to ensure comprehensive radial and axial detection of the outside of the pipe and to guarantee the accuracy of the detection results.

[0048] In this preferred embodiment, both the conductive contact 27 and the conductive block 28 are electrically connected to the hydraulic push rod 3 and the motor 41. When the conductive contact 27 and the conductive block 28 are in contact and energized, and there is a current difference, the hydraulic push rod 3 continues to work for a period of time, ensuring that the sliding speed of the hydraulic push rod 3 and the energization time are just enough to make the pipe located in the adjacent elastic sleeve 23 area slide into the interior of the limiting channel 50. After that, the hydraulic push rod 3 stops working, the motor 41 is turned on, and the rotating disk 42 is driven to rotate slowly to achieve precise positioning of the specific mode area, thus achieving precise detection and positioning of the pipe wear resistance.

[0049] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0050] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Since the above embodiments are substantially similar to the method embodiments, their descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coated wear detection device comprising a detection frame (1), characterised in that: The left side of the detection frame (1) is provided with a rolling detection mechanism (2), the right side of the detection frame (1) is provided with a hydraulic push rod (3), the right side of the hydraulic push rod (3) is provided with a radial rotary driving mechanism (4), the inside of the detection frame (1) is provided with a radial detection positioning mechanism (5); The rolling detection mechanism (2) comprises two fixed rods (20) which are fixedly connected to the top wall and the bottom wall of the detection frame (1) in a symmetrical manner, rotating shafts (21) are fixedly installed between the two fixed rods (20), and positioning sleeves (22) are rotatably installed on the outer sides of the rotating shafts (21); the center of each positioning sleeve (22) is fixedly connected with an elastic sleeve (23); One end of the hydraulic push rod (3) is fixedly connected to the right side wall of the detection frame (1), the radial rotary driving mechanism (4) comprises a positioning plate (40) which is fixedly connected to the other end of the hydraulic push rod (3), the right side of the positioning plate (40) is fixedly connected with a motor (41), the output end of the motor (41) is fixedly installed with a rotating disc (42), and the rotating disc (42) is rotatably installed on the side wall of the positioning plate (40); The inside of the elastic sleeve (23) is provided with a limiting ring (24), the limiting ring (24) is made of flexible material, the top wall and the bottom wall of the limiting ring (24) are fixedly connected with a plurality of inclined supporting rods (25), the plurality of inclined supporting rods (25) are equidistantly arranged along the circumference of the limiting ring (24), and the ends of the inclined supporting rods (25) are fixedly connected with longitudinal sliding blocks (26). The inner side wall of the longitudinal sliding block (26) is fixedly connected with a conductive contact piece (27), the top and the bottom of the rotating shaft (21) are symmetrically provided with a plurality of conductive blocks (28), and the resistance values of the plurality of conductive blocks (28) gradually increase towards the center along the outer side of the rotating shaft (21).

2. A coated abrasion detection device according to claim 1, wherein: The inner side wall of the rotating disc (42) is slidably installed with a plurality of limiting top rods (43), the plurality of limiting top rods (43) are equidistantly arranged along the circumference of the rotating disc (42), the inner side of the limiting top rod (43) is fixedly connected with a spring (44), and the other end of the spring (44) is fixedly connected with an electromagnet (45).

3. A coated abrasion detection device according to claim 1, wherein: The radial detection positioning mechanism (5) comprises a limiting channel (50) which is formed in the side wall of the detection frame (1), and a plurality of elastic sliding rods (51) are slidably installed on the inner side wall of the limiting channel (50).

4. A device for detecting a coating wear according to claim 3, characterized in that: The inner end of the elastic sliding rod (51) is fixedly connected with an elastic sliding block (52), the other end of the elastic sliding block (52) is fixedly connected with an elastic air bag (53), and the end of the elastic air bag (53) is fixedly connected with a piezoelectric ceramic (54).

5. A coated abrasion detection device according to claim 3, wherein: The centers of the rotating disc (42) and the limiting channel (50) are located on the same horizontal straight line, and the fixed rods (20) are symmetrically arranged on the two sides of the limiting channel (50).

6. A coated abrasion detection device according to claim 1, wherein: The conductive contact piece (27) and the conductive block (28) are electrically connected with the hydraulic push rod (3) and the motor (41).

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