Multifunctional flexible climbing pipe magnetic powder detection equipment

Abstract

The utility model discloses multifunctional flexible pipe climbing magnetic powder detection equipment, belongs to the technical field of magnetic powder inspection, and solves the problem that in the prior art, annular detection of steel pipes with smaller diameters and circumferential weld detection of small-diameter calandria are difficult. The device mainly comprises a coil assembly and a chain, the coil assembly is fixed on the chain, one end of the chain is provided with a traction frame, and the other end of the chain is provided with a mounting frame; a connecting buckle is arranged on the traction frame; an electric appliance box is arranged on the mounting frame, and a connecting hole matched with the connecting buckle is formed in the mounting frame. According to the utility model, a chain form is adopted, annular detection can be carried out on steel pipes with smaller diameters and calandria pipes with small diameters, and the device has the characteristics of small volume, light weight, high detection sensitivity and high detection efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detection, in particular to a multifunctional flexible pipe climbing magnetic particle detection device. Background Art

[0002] Magnetic particle testing is a nondestructive testing method that detects surface or near-surface defects in ferromagnetic materials by accumulating magnetic particles in the leakage magnetic field near the defect. Workpieces made of magnetic materials such as steel are magnetized, and the magnetic particles are attracted to the defect by the magnetic flux leakage. The magnetic particle distribution reveals surface and near-surface defects. This method is characterized by its simplicity and intuitive display, making it an important nondestructive testing method.

[0003] Prior art application CN221237620U discloses an adjustable guide pin assembly and an adjustable cross-magnetic yoke probe for tube-sheet weld inspection. However, this probe is primarily suitable for inspecting girth welds between two larger-diameter pipes. For pipes under DN100, ensuring good contact between the four magnetic poles and the workpiece is difficult. Furthermore, the existing equipment is too bulky to perform girth inspection on smaller, densely packed pipes. Currently, there is a lack of equipment suitable for girth inspection of smaller-diameter steel pipes and girth weld inspection of small-diameter pipes. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional flexible pipe climbing magnetic particle detection device to solve the problem of difficulty in detecting the annular ring of a steel pipe with a smaller diameter and the annular weld of a small diameter pipe in the prior art.

[0005] The utility model is realized through the following technical solutions:

[0006] A multifunctional, flexible pipe-climbing magnetic particle inspection device comprises a coil assembly and a chain to which the coil assembly is fixed. A traction frame is provided at one end of the chain, and a mounting frame is provided at the other end. The traction frame is provided with a connecting buckle, and the mounting frame is provided with an electrical box. The mounting frame has a connection hole that mates with the connecting buckle. The coordination of the coil assembly, chain, traction frame, and mounting frame enables the flexible application of the magnetic particle inspection device on pipes of varying diameters and shapes.

[0007] Furthermore, there are two chains, each of which is fixed with a coil assembly, and the coil assemblies on the two chains are connected to each other via a connecting rod. The two chains are more stable when in use, and avoid deflection or flipping that may occur with a single chain.

[0008] Furthermore, the chain includes several Y-shaped chain links, which are connected in series through connecting pins, and the connecting pins are provided with rollers; the connecting pins are provided with rollers, which reduces the friction between the chain and the inner wall of the pipe and improves the stability of the equipment.

[0009] Furthermore, the chain is connected to the mounting frame and the traction frame respectively through connecting pins.

[0010] Furthermore, the chain includes an H-shaped link, the bottom of the coil assembly is connected to one end of the H-shaped link of the chain through a connecting pin, and the other end of the H-shaped link is connected to a Y-shaped link.

[0011] Furthermore, a tension spring is provided between the connecting buckle and the chain; the tension spring can automatically adjust the tension.

[0012] Furthermore, the connection holes of the mounting bracket are connected with the connection buckles through pins, so that the mounting bracket can be quickly disassembled and installed, which is convenient for use of the equipment.

[0013] Furthermore, the electrical box is provided with a wire socket and a switch button.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model adopts a chain form and can perform annular detection on steel pipes with smaller diameters and small-diameter row pipes. It has the characteristics of small size, light weight, high detection sensitivity and high detection efficiency. The mounting frame is connected to the connecting hole through a pin, so that the mounting frame can be quickly disassembled and installed, which is convenient for the use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 3 It is the main view of the utility model;

[0019] Figure 4 It is a top view of the utility model;

[0020] Figure 5 It is a left view of the utility model;

[0021] Figure 6 It is a bottom view of the utility model;

[0022] Figure 7 This is a top view of the utility model in use;

[0023] Figure 8 This is a three-dimensional diagram of the utility model in use;

[0024] Figure 9 yes Figure 6 Enlarged view of part A;

[0025] In the figure: 1. Coil assembly; 2. H-type chain link; 3. Y-type chain link; 4. Roller; 5. Connecting pin; 6. Hexagon socket connecting screw; 7. Connecting rod; 8. Cross-slot screw; 9. Mounting bracket; 10. Wire socket; 11. Mounting screw; 12. Switch button; 13. Electrical box; 14. Traction frame; 15. Tension spring; 16. Connecting buckle; 17. Pin. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the following is a clear and complete description of the technical solution of the present invention in conjunction with the drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application. In addition, the directional terms mentioned in the following embodiments, such as "up", "down", "left", "right", etc., are only referenced to the directions of the drawings. Therefore, the directional terms used are used to illustrate rather than limit the invention of the present invention.

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Example 1: A multifunctional flexible climbing pipe magnetic particle detection device, such as Figure 1-Figure 2 As shown, the device comprises a coil assembly 1 and a chain to which the coil assembly 1 is fixed. A traction frame 14 is provided at one end of the chain, and a mounting frame 9 is provided at the other end. The traction frame 14 is provided with a connecting buckle 16. The mounting frame 9 is provided with an electrical box 13, and the mounting frame 9 has a connection hole that mates with the connecting buckle 16. The coordination of the coil assembly 1, chain, traction frame 14, and mounting frame 9 enables the flexible application of the magnetic particle inspection device in pipes of varying diameters and shapes.

[0029] Example 2: A multifunctional flexible climbing tube magnetic particle detection device, such as Figure 3-Figure 6As shown, there are two chains, each of which is fixed with four coil assemblies 1, two on each chain, and the coil assemblies 1 on the two chains are connected to each other via a connecting rod 7. The two chains can be more stable when in use, avoiding the deflection or flipping that may occur with a single chain; the chain includes a plurality of Y-shaped links 3, which are connected in series via a connecting pin 5, and the two ends of the connecting pin 5 are rotatably connected to rollers 4; the provision of rollers 4 reduces the friction between the chain and the inner wall of the pipe, thereby improving the stability of the equipment; the chain is connected to the mounting frame 9 and the traction frame 14 respectively via the connecting pin 5; as shown Figure 9 As shown, the chain includes an H-shaped link 2. The bottom of the coil assembly 1 is connected to one end of the H-shaped link 2 of the chain via a connecting pin 5. The other end of the H-shaped link 2 is connected to a Y-shaped link 3. A tension spring 15 is provided between the connecting buckle 16 and the chain; the tension spring 15 can automatically adjust the tension. The connecting hole of the mounting bracket 9 is connected to the connecting buckle 16 via a pin 17, allowing the mounting bracket 9 to be quickly removed and installed, facilitating the use of the device. Other aspects are the same as those of Example 1.

[0030] The upper part of the coil assembly 1 is connected by the hexagon socket screw 6 and the connecting rod 7 in pairs and the same axis, and two holes are provided at the bottom; Figure 9 As shown, one hole is coaxial with the hole of the H-shaped chain link 2. Rollers 4 are mounted on both sides of the H-shaped chain link 2. Connecting pins 5 coaxially connect the rollers 4, H-shaped chain link 2, coil assembly 1, and rollers 4. Another hole is coaxial with the hole of the Y-shaped chain link 3. Rollers 4 are mounted on both sides of the Y-shaped chain link 3. Connecting pins 5 coaxially connect the rollers 4, Y-shaped chain link 3, coil assembly 1, and rollers 4. The other end of the H-shaped chain link 2 is connected to the Y-shaped chain link 3 via rollers 4 and connecting pins 5. Multiple Y-shaped chain links 3 are connected in series via rollers 4 and connecting pins 5, thus connecting the two coil assemblies. The mounting bracket 9 is connected to the Y-shaped chain link 3 on both sides via rollers 4 and connecting pins 5, securing the left and right rows of chains. The mounting bracket 9 and the power socket 10 are secured together by mounting screws 11. The switch button 12 is mounted on the electrical box 13, which is secured to the tail mounting bracket 9 via cross-slot screws 8. One end of the front traction frame 14 is connected to the H-shaped chain link 2 through the roller 4 and the connecting pin 5, and the other end is installed with a tension spring 15, and the other end of the tension spring 15 is connected to the connecting buckle 16.

[0031] like Figure 7 and Figure 8 As shown, when inspecting a workpiece, a tension spring 15 of appropriate length is selected according to the diameter, and the entire probe is placed around the workpiece to be inspected through the connection between the pin 17 and the mounting bracket 9. Pressing the switch button 12 can magnetize the workpiece and detect weld defects.

[0032] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A multifunctional flexible climbing pipe magnetic particle detection device, comprising a coil assembly (1), characterized in that: The invention also includes a chain, on which a coil assembly (1) is fixed, a traction frame (14) is provided at one end of the chain, and a mounting frame (9) is provided at the other end; a connecting buckle (16) is provided on the traction frame (14); an electrical box (13) is provided on the mounting frame (9), and a connecting hole is provided on the mounting frame (9) to match the connecting buckle (16).

2. The multifunctional flexible climbing pipe magnetic particle testing equipment according to claim 1 is characterized in that: There are two chains, and the coil assemblies (1) are fixed on both chains. The coil assemblies (1) on the two chains are correspondingly connected via a connecting rod (7).

3. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 1 is characterized in that: The chain comprises a plurality of Y-shaped chain links (3), and the plurality of Y-shaped chain links (3) are connected in series via a connecting pin (5), and a roller (4) is provided on the connecting pin (5).

4. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 3 is characterized in that: The chain is connected to the mounting frame (9) and the traction frame (14) respectively through a connecting pin (5).

5. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 4 is characterized in that: The chain comprises an H-shaped link (2), the bottom of the coil assembly (1) is connected to one end of the H-shaped link (2) of the chain via a connecting pin (5), and the other end of the H-shaped link (2) is connected to a Y-shaped link (3).

6. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 1 is characterized in that: A tension spring (15) is provided between the connecting buckle (16) and the chain.

7. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 1 is characterized in that: The connection hole of the mounting frame (9) is connected to the connection buckle (16) through a pin (17).

8. The multifunctional flexible pipe climbing magnetic particle testing equipment according to claim 1 is characterized in that: The electrical appliance box (13) is provided with a wire socket (10) and a switch button (12).

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