Magnetic powder inspection probe and magnetic powder inspection device

Abstract

The utility model discloses a magnetic powder inspection probe and a magnetic powder inspection device. The magnetic powder inspection probe comprises a handle, a magnetic button, a universal pipe, a magnetic conductive wire, a magnetic pole probe, a fastener and a host interface, wherein the magnetic button and the host interface are both arranged at the upper part of the handle, the host interface is configured to access a host of the magnetic powder inspection device, and the magnetic button is configured to switch on and off magnetization current; the universal tube is a hollow tube, one end of the universal tube is fixedly connected to the magnetic conductive end of the handle through a fastener, and the other end of the universal tube is fixedly connected to the magnetic pole probe through a fastener; and two ends of the magnetic conductive wire are respectively connected to the magnetic conductive end of the handle and the magnetic pole probe. And by utilizing the bendability of the universal pipe, an operator can position the magnetic pole probe at various positions and angles, so that effective detection of a welding seam in a narrow space is realized.

Description

Technical Field

[0001] The present application generally relates to the technical field of magnetic particle flaw detection, and more specifically, to a magnetic particle flaw detection probe and a magnetic particle flaw detection device that are flexibly adjustable at multiple angles. Background Art

[0002] Special equipment needs to undergo safety inspections (i.e., periodic inspections) at a certain period. Periodic inspections usually include macroscopic inspections, wall thickness measurements, safety accessory inspections, and surface defect inspections. In surface defect inspections, magnetic particle inspections are often performed on ferromagnetic equipment. Magnetic particle inspections detect defects on the surface and near-surface of ferromagnetic equipment based on the interaction between the leakage magnetic field at the defects of ferromagnetic equipment and the magnetic particles. Specifically, after the ferromagnetic equipment is magnetized, the magnetic field at the discontinuities with defects on the surface and near-surface of the equipment will be distorted and a leakage magnetic field will be generated. The leakage magnetic field will attract the magnetic particles to accumulate to form magnetic traces. By observing and analyzing the magnetic traces under appropriate lighting, detection information about the location and shape of the defects can be obtained.

[0003] During the regular inspection process, you may encounter a situation where the pipe or pipeline is close to the ground or the corner of the wall. In these cases, due to the small inspection space, the magnetic yoke probe of the magnetic particle inspection device cannot fit tightly with the inspected position, making it difficult to perform magnetic particle inspection, which in turn brings great risks to the safe operation of the equipment. The magnetic particle inspection devices currently on the market have the following problems: 1. The magnetic yoke of the existing magnetic particle inspection device is large in size and is difficult to put into a small space for inspection; 2. The magnetic yoke of the existing magnetic particle inspection device is an integrated type and cannot be flexibly rotated in a small space, resulting in an inability to conduct comprehensive and effective inspections.

[0004] Therefore, how to provide a magnetic particle flaw detection device that can flexibly perform detection in a small space is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present application provides a magnetic particle flaw detection probe, which can be flexibly adjusted at multiple angles to facilitate magnetic particle flaw detection in a small space.

[0006] The present application provides a magnetic particle flaw detection probe, comprising: a handle, a magnetizing button, a universal tube, a magnetic conductive wire, a magnetic pole probe, a fastener and a host interface; wherein: the magnetizing button and the host interface are both arranged on the upper part of the handle, the host interface is configured to be connected to the host of a magnetic particle flaw detection device, and the magnetizing button is configured to switch magnetizing current; the universal tube is a hollow tube, one end of the universal tube is fixedly connected to the magnetic conductive end of the handle through a fastener, and the other end of the universal tube is fixedly connected to the magnetic pole probe through the fastener; the magnetic conductive wire is arranged inside the universal tube and its two ends are respectively connected to the magnetic conductive end of the handle and the magnetic pole probe.

[0007] Optionally, the fasteners include hexagon socket screws and butterfly nuts.

[0008] Optionally, the magnetic particle inspection probe further includes: a first telescopic tube and an illumination lamp; one end of the first telescopic tube is fixedly connected to the lower part of the handle, and the other end of the first telescopic tube is provided with an illumination lamp.

[0009] Optionally, the first telescopic tube is made of soft PVC.

[0010] Optionally, the universal tube is a metal hose.

[0011] Optionally, the metal hose is made of s30408 ​​pipe.

[0012] Optionally, the universal tube is a plastic bamboo tube.

[0013] Optionally, the magnetic particle flaw detection probe further includes: a second telescopic tube and a reflector; one end of the second telescopic tube is fixedly connected to the lower part of the handle, and the other end of the second telescopic tube is provided with a reflector.

[0014] Optionally, the length of the magnetic conductive wire is greater than the length of the universal tube and the magnetic conductive wire is placed inside the universal tube in a spiral form.

[0015] The present application also provides a magnetic particle flaw detection device, which includes the above-mentioned magnetic particle flaw detection probe.

[0016] Compared with the prior art, the magnetic particle flaw detection probe and magnetic particle flaw detection device provided in this application have the following beneficial effects:

[0017] The magnetic particle flaw detection probe and magnetic particle flaw detection device provided by the present application include a magnetic pole probe connected via a universal tube and a magnetic conductive wire, which is particularly suitable for performing magnetic particle flaw detection in a narrow space. Since the position and angle of the universal tube are adjustable, the staff can easily place the magnetic pole probe and perform magnetic particle flaw detection according to the weld to be inspected, thereby providing more accurate detection information for the evaluation of the life of special equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the present application, the implementation mode of the present application will be further illustrated and described according to the following drawings. These drawings are only used to more conveniently and specifically describe the implementation mode of the present application rather than to limit the present application.

[0019] Figure 1 is a schematic structural diagram of a magnetic particle flaw detection probe provided according to a preferred embodiment of the present application; and

[0020] Figure 2 It is a schematic structural diagram of a fastener of a magnetic particle flaw detection probe provided according to a preferred embodiment of the present application.

[0021] In the figure: 1 is a handle, 2 is a magnetic button, 3 is a universal tube, 4 is a magnetic wire, 5 is a magnetic pole probe, 6 is a first telescopic tube, 7 is a lighting lamp, 8 is a fastener, 9 is a host interface; 81 is a hexagon socket screw, and 82 is a butterfly nut. DETAILED DESCRIPTION

[0022] The present application provides a magnetic particle flaw detection probe, the angle and position of which can be flexibly adjusted, so as to facilitate the implementation of magnetic particle flaw detection in a small space.

[0023] In a preferred embodiment of the present application, a magnetic particle flaw detection probe is provided, for example, Figure 1 .like Figure 1 As shown, the magnetic particle flaw detection probe comprises: a handle 1, a magnetic button 2, a universal tube 3, a magnetic wire 4, a magnetic pole probe 5, a fastener 8 and a host interface 9; wherein: the magnetic button 2 and the host interface 9 are both arranged at the upper part of the handle 1, the host interface 9 is configured to be connected to the host of the magnetic particle flaw detection device, and the magnetic button 2 is configured to switch the magnetization current; the universal tube 3 is a hollow tube, one end of the universal tube 3 is fixedly connected to the magnetic end of the handle 1 through a fastener 8, and the other end of the universal tube 3 is fixedly connected to the magnetic pole probe 5 through a fastener 8; the magnetic wire 4 is arranged inside the universal tube 3 and its two ends are respectively connected to the magnetic end of the handle 1 and the magnetic pole probe 5. Since the universal tube 3 is bendable, the magnetic pole probe 5 connected via the universal tube 3 can easily extend into a narrow space or bypass possible obstacles to reach the position to be detected, thereby performing magnetic particle flaw detection. The length of the universal tube 3 and the magnetic wire 4 can be reasonably set according to the position of the weld to be detected. The method of using the magnetic particle flaw detection probe is as follows: before use, the magnetic pole probe 5 fixed by the universal tube 3 can be verified on the test block to verify the lifting force, and then the magnetic particle flaw detection can be performed after it meets the requirements. When in use, the bending characteristics of the universal tube 3 are used to send the magnetic pole probe 5 around obstacles to both sides of the weld to be detected in a narrow space, spray magnetic powder or magnetic suspension, and then connect the host interface 9 to the host of the magnetic particle flaw detection device, turn on the magnetic button 2, and use the magnetic wire 4 to conduct the magnetic force to the magnetic pole probe 5, repeatedly magnetize, and observe whether there is magnetic powder accumulation near the weld to be detected, so as to check whether there are defects.

[0024] In a preferred embodiment of the present application, the fastener 8 includes a hexagon socket screw 81 and a butterfly nut 82. Figure 2 As shown in FIG. 1 , when the hexagon socket screw 81 and the butterfly nut 82 are used as the fastener 8, through holes for inserting the hexagon socket screw 81 are provided at corresponding positions of the universal tube 3 and the magnetic pole probe 5. In a preferred embodiment of the present application, the universal tube 3 is connected to the magnetic conductive end of the handle 1 and the magnetic pole probe 5 by fasteners 8 of the same structure. For example, the universal tube 3 is connected to the magnetic conductive end of the handle 1 and the magnetic pole probe 5 by fasteners 8 of the same structure. Figure 2In an alternative embodiment of the present application, the universal tube 3 is connected to the magnetic conductive end of the handle 1 and the magnetic pole probe 5 by fasteners 8 of different structures. For example, the universal tube 3 is connected to the magnetic conductive end of the handle 1 by a clamp and the universal tube 3 is connected to the magnetic pole probe 5 by a fastener 8 of different structures. Figure 2 The hexagon socket screw 81 and butterfly nut 82 are shown connected; and vice versa.

[0025] In a preferred embodiment of the present application, the magnetic particle flaw detection probe further includes a first telescopic tube 6 and an illuminating lamp 7. Figure 1 As shown, one end of the first telescopic tube 6 is fixedly connected to the lower part of the handle 1, and a lighting lamp 7 is arranged at the other end of the first telescopic tube 6. When the light near the weld to be inspected is weak, it may be difficult to observe the magnetic powder accumulation phenomenon only by natural light, so the first telescopic tube 6 and the lighting lamp 7 are added. The length and angle of the first telescopic tube 6 are adjustable. The staff can adjust the illumination range of the lighting lamp 7 by adjusting the first telescopic tube 6 to facilitate the observation of the magnetic powder accumulation phenomenon. The lighting lamp 7 can be controlled by the magnetic button 2, or it can have an independent switch. Preferably, the first telescopic tube 6 can be made of soft PVC (polyvinyl chloride). The soft PVC with added plasticizer is softer and more elastic, and the lighting lamp 7 can be easily delivered to the desired lighting position.

[0026] In a preferred embodiment of the present application, the universal tube 3 is a metal hose, which can maintain a fixed posture after the angle and position are adjusted, and the structure is stable during the magnetic particle inspection after positioning, ensuring that the magnetization can be applied smoothly. Further preferably, the metal hose can be made of S30408 ​​pipe. S30408 ​​stainless steel has the characteristics of high temperature resistance, low temperature resistance, acid and alkali resistance, corrosion resistance, and weak magnetism. It is economical, durable, and highly available, and is suitable for use in special equipment working environments. In another preferred embodiment of the present application, the universal tube 3 is a plastic bamboo tube, which itself is non-conductive and non-magnetic, reducing the leakage of electricity or magnetism that may occur on the universal tube 3 during use, thereby improving the safety of equipment use.

[0027] In a preferred embodiment of the present application, the magnetic particle flaw detection probe further includes: a second telescopic tube and a reflector; one end of the second telescopic tube is fixedly connected to the lower part of the handle 1, and the other end of the second telescopic tube is provided with a reflector. When the weld to be inspected is located in a small space and faces away from the inspector or is difficult to observe directly, a second telescopic tube and a reflector can be added to observe the magnetic powder accumulation phenomenon through the reflector. The second telescopic tube can be made of the same or different material as the first telescopic tube 6, and is arranged at the lower part of the handle 1 without obstructing the first telescopic tube 6. The reflector can be a plane mirror or a convex mirror that can increase the field of view.

[0028] In a preferred embodiment of the present application, the length of the magnetic conductive wire 4 is greater than the length of the universal tube 3 and the magnetic conductive wire 4 is placed inside the universal tube 3 in a spiral form. Since the universal tube 3 may have a certain degree of elasticity, the overall internal length of the universal tube 3 may change during the process of adjusting the position and angle of the universal tube 3, so the length of the magnetic conductive wire 4 can be set to be slightly greater than the length of the universal tube 3 to avoid the magnetic conductive wire 4 from breaking during use. Preferably, a portion of the magnetic conductive wire 4 can be placed inside the universal tube 3 in a spiral form so as to be extended as needed.

[0029] In a preferred embodiment of the present application, a magnetic particle flaw detection device is also provided, which includes the above-mentioned magnetic particle flaw detection probe. The use method and advantages of the magnetic particle flaw detection device are as described above.

[0030] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present application in detail and are not intended to limit the present application. The embodiments in the present application can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present application.

[0031] Although the preferred embodiments of the present application have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. Those skilled in the art will expect multiple changes, modifications and substitutions without departing from the present application. It should be understood that the various alternatives of the embodiments of the present application described herein are optionally used to implement the present application. It is intended to define the scope of the present application by the claims, and thus encompass structures and equivalents within the scope of these claims.

Claims

1. A magnetic particle flaw detection probe, characterized in that: include: A handle (1), a magnetic button (2), a universal tube (3), a magnetic wire (4), a magnetic pole probe (5), a fastener (8) and a host interface (9); in: The magnetic flux button (2) and the host interface (9) are both arranged on the upper part of the handle (1); the host interface (9) is configured to be connected to the host of the magnetic particle flaw detection device; and the magnetic flux button (2) is configured to switch the magnetizing current; The universal tube (3) is a hollow tube, one end of the universal tube (3) is fixedly connected to the magnetic conductive end of the handle (1) through the fastener (8), and the other end of the universal tube (3) is fixedly connected to the magnetic pole probe (5) through the fastener (8); and The magnetic conductive wire (4) is arranged inside the universal tube (3) and its two ends are respectively connected to the magnetic conductive end of the handle (1) and the magnetic pole probe (5).

2. The magnetic particle flaw detection probe according to claim 1, characterized in that: The fastener (8) comprises a hexagon socket screw (81) and a butterfly nut (82).

3. The magnetic particle flaw detection probe according to claim 1, characterized in that: Also includes: A first telescopic tube (6) and a lighting lamp (7); One end of the first telescopic tube (6) is fixedly connected to the lower part of the handle (1), and the other end of the first telescopic tube (6) is provided with the lighting lamp (7).

4. The magnetic particle flaw detection probe according to claim 3, characterized in that: The first telescopic tube (6) is made of soft PVC.

5. The magnetic particle flaw detection probe according to claim 1, characterized in that: The universal tube (3) is a metal hose.

6. The magnetic particle flaw detection probe according to claim 5, characterized in that: The metal hose is made of s30408 ​​pipe.

7. The magnetic particle flaw detection probe according to claim 1, characterized in that: The universal tube (3) is a plastic bamboo tube.

8. The magnetic particle flaw detection probe according to claim 1, characterized in that: Also includes: a second telescopic tube and a reflector; One end of the second telescopic tube is fixedly connected to the lower part of the handle (1), and the other end of the second telescopic tube is provided with the reflector.

9. The magnetic particle flaw detection probe according to claim 1, characterized in that: The length of the magnetic conductive wire (4) is greater than the length of the universal tube (3), and the magnetic conductive wire (4) is placed inside the universal tube (3) in a spiral form.

10. A magnetic particle flaw detection device, characterized in that: The magnetic particle flaw detection device comprises a magnetic particle flaw detection probe according to any one of claims 1-9.

Images