A container type ultrasonic magnetic flux leakage steel wire rope joint detection device and a detection method thereof

Abstract

The application discloses a container type ultrasonic magnetic flux leakage steel wire rope joint detection device and a detection method thereof. The detection device is used for a defect evaluation detection method of a large metal rope joint (1) such as an aircraft carrier arresting cable. A general arresting cable joint (1) has a socket (11) and a steel wire rope head (13) of a metal rope (12) poured into the socket by a zinc alloy. The detection device (2) is electrically connected to a detection and analysis instrument (3). Through superposition of rotating ultrasonic magnetic flux leakage imaging information of the same position of a detected object, comprehensive analysis of detection data of the steel wire rope socket and the poured steel wire rope head, and evaluation of the fatigue state of the metal joint, the application can be used for the evaluation of the fatigue state of the metal joint.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nondestructive testing, in particular to the nondestructive testing technology of the fatigue crack defects of the metal rope joint such as the steel wire rope, and particularly relates to a container type ultrasonic magnetic flux leakage steel wire rope joint detection device and a detection method thereof. BACKGROUND

[0002] The metal rope, particularly the steel wire rope, is applied to the traction fixation in various large-scale equipment, and the joint is usually fixedly installed with the metal clamp or the clamp seat. Moreover, the large-scale equipment generally pulls the heavy device, and the mechanical force borne by the metal rope in the work is quite large, so that the stress fatigue is easily caused due to the long-term use, particularly at the joint, and then the rupture and other accidents are caused. For example, the traction steel wire rope used by the elevator, the crane and the cable-stayed bridge cable and the like. For another example, the arresting cable of the aircraft carrier, the joint of which is usually the steel wire rope head fixed by the zinc alloy poured into the clamp seat. Since the use frequency is high, the working strength of each arresting task is huge, and the arresting cable needs to be carefully maintained and replaced. In the system of the aircraft carrier in which the entire set of aircrafts land on the aircraft carrier, the arresting cable is the safety guarantee for the landing of the aircraft, and is also the most likely to cause problems. The failure of the arresting cable often causes a huge safety accident, and the end of the lead pouring fixed joint of the steel wire rope of the arresting cable is damaged or the steel wire rope is pulled out a small section to cause the misplacement, which will cause the safety accident of the rupture of the arresting cable, and the change condition of which is not easy to be found by the naked eye.

[0003] In view of the above defects, the present application adopts the following technical scheme. SUMMARY

[0004] The present application aims to provide a container type ultrasonic magnetic flux leakage steel wire rope joint detection device and a detection method thereof, and the technical scheme is as follows:

[0005] A container type ultrasonic magnetic flux leakage steel wire rope joint detection method is used for the defect evaluation detection method of the large-scale metal rope joint (1) such as the arresting cable of the aircraft carrier. The general arresting cable joint (1) has the clamp seat (11) and the steel wire rope head (13) of the metal rope (12) poured with the zinc alloy into the clamp seat. The detection device (2) is electrically connected to the detection analysis instrument (3), and the feature is that the fatigue state of the metal joint is evaluated by superimposing the rotary ultrasonic magnetic flux leakage imaging information of the same position of the detected object and comprehensively analyzing the detection data of the steel wire rope clamp seat and the poured steel wire rope head two parts. The specific method steps are as follows:

[0006] a. Scanning detection: the rotary ultrasonic magnetic flux leakage detection device is installed on the detected metal joint part to perform the ultrasonic and magnetic flux leakage rotary scanning detection;

[0007] b. Signal image extraction: extract the image information of the rotating magnetic flux leakage detection signal and the image information of the ultrasonic transducer detection signal, and send them to the detection analysis instrument;

[0008] c. Image reconstruction: superimpose the rotating ultrasonic and magnetic flux leakage detection signals, and extract the defect information by image reconstruction;

[0009] d. Comprehensive defect analysis: analyze the defect information of the outer steel wire rope socket based on the magnetic flux leakage detection signal, combine the defect information of the internal pouring part based on the ultrasonic detection signal, and comprehensively analyze the fatigue state of the entire steel wire rope joint.

[0010] In order to extend the detection evaluation analysis to the entire joint part, the ultrasonic transducer detection imaging with high surface precision is combined with the deep detection, the steel wire rope joint has two parts, the joint part is an integrally formed metal cylindrical hollow socket, and the steel wire head is sleeved into the cylindrical hollow socket and welded, under normal circumstances, the magnetic flux leakage detection tends to detect the metal layer defects of the surface cylindrical hollow socket, such as fine cracks in the socket, the magnetic flux leakage imaging can accurately rotate and image to extract the micro defect signal, and the welding layer and the steel wire rope part not only change the metal material but also have depth problems, the magnetic flux leakage cannot achieve accurate detection, the rotating ultrasonic imaging is used for assistance, through superimposition of rotating magnetic flux leakage and ultrasonic imaging, the detection information data of the fine crack defects of the socket and the deformation of the welding layer and the steel wire rope are combined, and the fatigue deformation of the entire metal joint is comprehensively evaluated and analyzed.

[0011] And the magnetic flux field and the ultrasonic imaging signal need to be superimposed at the same position, and the excitation transmission wave propagation direction depends on the position of the relative superposition magnetic field direction of the transmission wave conductor, therefore, the magnetic field must be arranged transversely to the same radial plane of the detected main body, and the current conductor is arranged longitudinally to the same radial plane of the detected main body, so as to generate an electromagnetic field and an ultrasonic wave transversely to the travel of the tested body, and the detection signals are completely fused at the same position of the simultaneous detection.

[0012] Further, the extracted ultrasonic magnetic flux leakage detection signal is a rotating ultrasonic magnetic flux leakage imaging signal, and the corresponding ultrasonic magnetic flux leakage detection device is a rotating detection probe device. The rotating ultrasonic and magnetic flux leakage imaging has continuous and uninterrupted detection images, and in the case of fine defects or fatigue stress differences, or micro displacement of the pouring part of the steel wire rope joint, the continuous detection image comparison and the detection image comparison of different positions can more clearly distinguish the fine differences of defects.

[0013] Further, the ultrasonic transducer is a ceramic coil piezoelectric ultrasonic transducer, extracts ultrasonic signals with coupling liquid detection, and performs rotary ultrasonic imaging analysis. Ultrasonic imaging has achieved a detection depth range of nearly 20 centimeters, and an image spatial resolution of more than 1 meter can be obtained. The detection depth can be adjusted by changing the time of the machine to receive the echo. Ultrasonic imaging is pulse wave, and the longest time of receiving echo cannot exceed half of the pulse emission interval, because the echo signal must be returned before the next pulse emission to form continuous rotary imaging. The detection signal extraction of depth achieves good results.

[0014] Further, the rotary ultrasonic transducer is an electromagnetic ultrasonic transducer for receiving electromagnetic alternating field emission, and the electromagnetic ultrasonic transducer extracts the electromagnetic mechanical vibration wave of the simultaneously emitted vibration magnetic field in the magnetic flux leakage detection to form the detected electromagnetic ultrasonic wave image signal as the rotary ultrasonic detection image signal. The electromagnetic ultrasonic transducer (EMAT) is a device for generating ultrasonic waves in conductive metals through electromagnetic energy by electromagnetism. It has the characteristics of non-contact detection and does not require coupling medium. When a high-frequency coil passes through a high-frequency current, eddy current is generated. Under the action of an external magnetic field, the eddy current will be subjected to mechanical force to produce high-frequency vibration and form an ultrasonic wave source. Generally, the EMAT excitation mechanism is based on the Lorentz force. Under the action of the static magnetic field of the magnetic flux leakage detection permanent magnet, the charged particles of the detected metal are subjected to force and produce offset vibration. The continuous mechanical vibration between the charged particles forms a wave, forming an ultrasonic wave source. Therefore, the electromagnetic ultrasonic transducer is applied in the present application, which fully utilizes the magnetic field effect of the magnetic flux leakage detection, and simultaneously superimposes and fuses the detection signals for synchronous detection.

[0015] Moreover, electromagnetic ultrasonic wave, as electromagnetic vibration mechanical wave, is more suitable for the aluminum alloy pouring steel wire rope head in the deep steel wire rope joint, and is combined with the magnetic flux leakage detection device for accurately detecting the surface contact seat to realize comprehensive analysis and evaluation of the entire steel wire rope joint defect condition after superimposition and fusion.

[0016] The application also discloses a container type ultrasonic magnetic flux leakage steel wire rope joint detection device, which is used for a defect evaluation detection method of a large metal rope joint (1) such as an aircraft carrier arresting cable, and generally has a socket (11) and a steel wire rope head (13) of a metal rope (12) poured into the socket by a zinc alloy. The detection device (2) is electrically connected to a detection and analysis instrument (3), and in a detection process, the arresting cable joint (1) is inserted into the detection device (2) with a conforming cylindrical shape to perform nondestructive detection. The detection device (2) is characterized by comprising a cylindrical main body (20), a magnetic flux leakage detection device (21) and an ultrasonic detection device (22), wherein the magnetic flux leakage detection device (21) comprises a magnetic flux leakage detection sensor (211), a first permanent magnet (212a) and a second permanent magnet (212b), and the ultrasonic detection device (22) comprises an ultrasonic transducer (221).

[0017] The magnetic flux leakage detection sensor (211), the first permanent magnet (212a) and the second permanent magnet (212b) of the magnetic flux leakage detection device (21) and the ultrasonic transducer (221) of the ultrasonic detection device (22) are arranged on the same radial surface of the main body (20), and the ultrasonic transducer (221) is arranged between the first permanent magnet (212a) and the second permanent magnet (212b) in parallel with the magnetic flux leakage detection sensor (211). In order to superimpose the signals of the same position detected by the ultrasonic transducer (221) and the magnetic flux leakage detection sensor (211), the ultrasonic transducer (221) is arranged between the two permanent magnets of the magnetic flux leakage detection device, and the signals detected by the magnetic flux leakage detection sensor (211) are synchronized.

[0018] Further, the container type ultrasonic magnetic flux leakage steel wire rope joint detection device is characterized in that the main body (20) further comprises a rotating device for driving the magnetic flux leakage detection device (21) and the ultrasonic detection device (22) to rotate on the same radial surface. The main body (20) can be provided with a double-layer structure, wherein an outer layer is a rotatable detection device protection layer (201), an inner layer is a wear-resistant layer (202), and a rotating mechanism (203) is arranged between the double layers at a bottom end of the main body. The rotating mechanism (203) drives the detection device protection layer (201) to rotate relative to the wear-resistant layer (202) in a self-rotation mode, drives the ultrasonic magnetic flux leakage detection device arranged on the same radial surface of the main body to rotate, superimposes the rotating ultrasonic magnetic flux leakage imaging information of the same position of a detected object, comprehensively analyzes detection data of the steel wire rope socket and the poured steel wire rope head, and evaluates the fatigue state of the metal joint.

[0019] Further, the detection probe support (23) is further included, and the detection probe support (23) comprises a horizontal support (231) and a vertical support (232), and the cylindrical main body (20) is connected and fixed with the horizontal support (231) and the vertical support (232) in a triangular support mode. The main body (20) of the detection device (2) is placed at an angle with the ground, and the triangular support forms a very stable placement structure. Since the large metal rope has a certain length and is relatively heavy, the movement needs special equipment, and it is difficult to completely vertically lift the steel wire rope during detection. When the detection device is placed at an angle with the ground, it is more suitable for humanized placement and reduces the difficulty of detection operation.

[0020] Further, the angle of the triangular support of the main body (20) is set to be any angle between 5 and 45 degrees. Preferably, the angle is set to be 15 to 45 degrees, and the angle of 30 degrees is the most humanized setting.

[0021] Further, the end face of the opening end (204) of the main body (20) is set to be a corresponding horizontal section. Generally, the ultrasonic detection device needs a coupling agent, and the horizontal section is more suitable for liquid storage.

[0022] Further, a one-way valve diaphragm (205) is arranged at the opening end (204) of the horizontal section. The one-way valve diaphragm (205) is made of flexible rubber material, and is opened when the steel wire rope joint is inserted, and is rebounded after being pulled out. The one-way valve diaphragm (205) has the effect of one-way sealing of the liquid coupling agent, and is more convenient for carrying the detection device, and the coupling agent is not easy to spill.

[0023] According to the above technical scheme, the container type ultrasonic magnetic leakage steel wire rope joint detection method and the detection device have the following beneficial effects: the container type ultrasonic magnetic leakage steel wire rope joint detection method and the detection device can superimpose the rotary ultrasonic magnetic leakage imaging information of the same position of the detected object, comprehensively analyze the detection data of the steel wire rope joint and the cast steel wire rope head, realize the fusion of the fatigue states of the metal joints at the same position evaluated by the two detection devices, and especially realize the nondestructive detection and evaluation of the metal joints of the large steel wire rope such as the arresting cable of an aircraft carrier. The detection device is not only provided with a rotary structure to realize continuous detection imaging, but also provided with a triangular support type fixing structure at an angle, which is more convenient for the operation of the detection process and realizes more humanized reduction of the detection difficulty of the large arresting cable. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a use state schematic view of the detection device of the best embodiment of the application.

[0025] Figure 2The detection device structure schematic diagram of the best embodiment of the present application;

[0026] Figure 3 The detection device structure rotating schematic diagram of the best embodiment of the present application;

[0027] Figure 4 The detection device structure schematic diagram of the best embodiment of the present application;

[0028] Figure 5 The detection device structure schematic diagram of the best embodiment of the present application;

[0029] Figure 6 The detection device support angle structure schematic diagram of the best embodiment of the present application;

[0030] Figure 7 The detection device support angle structure schematic diagram of the best embodiment of the present application;

[0031] Figure 8 The detection device support angle structure schematic diagram of the best embodiment of the present application;

[0032] Figure 9 The one-way valve diaphragm structure schematic diagram of the best embodiment of the detection device of the present application;

[0033] Figure 10 The one-way valve diaphragm opening structure schematic diagram of the best embodiment of the detection device of the present application;

[0034] Figure 11 The one-way valve diaphragm opening structure schematic diagram of the best embodiment of the detection device of the present application;

[0035] Figure 12 The one-way valve diaphragm opening structure schematic diagram of the best embodiment of the detection device of the present application;

[0036] Figure 13 The one-way valve diaphragm opening structure schematic diagram of the best embodiment of the detection device of the present application. DETAILED DESCRIPTION

[0037] The present application is further explained in conjunction with the accompanying drawings and specific embodiments.

[0038] As Figure 1 and Figure 3As shown, a container type ultrasonic magnetic flux leakage steel wire rope joint detection method is used for defect evaluation and detection method of large metal rope joint 1 such as aircraft carrier arresting cable, general arresting cable joint 1 has socket 11 and steel wire rope head 13 of metal rope 12 poured into socket by zinc alloy, detection device 2 is electrically connected to detection analysis instrument 3, through superimposing rotating ultrasonic magnetic flux leakage imaging information of the same position of the detected object, the detection data of steel wire rope socket and poured steel wire rope head two parts are comprehensively analyzed to evaluate the fatigue state of the metal joint, the specific method steps are as follows:

[0039] a. Scan detection: install the rotating ultrasonic magnetic flux leakage detection device on the detected metal joint part to perform ultrasonic and magnetic flux leakage rotating scan detection;

[0040] b. Signal image extraction: extract the image information of the rotating magnetic flux leakage detection signal and the image information of the ultrasonic transducer detection signal, and send it to the detection analysis instrument;

[0041] c. Image reconstruction: superimpose the rotating ultrasonic and magnetic flux leakage detection signals to extract defect information;

[0042] d. Comprehensive defect analysis: analyze the defect information of the outer steel wire rope socket mainly based on the magnetic flux leakage detection signal, combine the defect information of the internal pouring part mainly based on the ultrasonic detection signal, and comprehensively analyze the fatigue state of the entire steel wire rope joint.

[0043] In order to extend the detection evaluation and analysis to the entire joint part, the ultrasonic transducer detection imaging with high surface precision and magnetic flux leakage imaging are combined for deep detection, the steel wire rope joint has two parts, the joint part is a one-piece formed metal cylindrical hollow socket, and the steel wire head is sleeved into the cylindrical hollow socket and welded, under normal circumstances, the magnetic flux leakage detection tends to detect the metal layer defects of the surface cylindrical hollow socket, such as fine cracks in the socket, the magnetic flux leakage imaging can accurately rotate and image to extract the micro defect signal, and the welding layer and the steel wire rope part not only change the metal material but also have depth problems, the magnetic flux leakage cannot achieve accurate detection, the rotating ultrasonic imaging is used for assistance, through superimposing the rotating magnetic flux leakage and ultrasonic imaging, the detection information data of the fine crack defects of the socket and the deformation of the welding layer and the steel wire rope are combined to comprehensively evaluate and analyze the fatigue deformation of the entire metal joint.

[0044] And the magnetic flux leakage field and the ultrasonic imaging signal need to be superimposed at the same position, and the excitation emission wave propagation direction depends on the position of the relative superimposed magnetic field of the emission wave conductor, therefore, the magnetic field must be arranged transversely to the same radial plane of the detected object, and the current conductor is arranged longitudinally to the same radial plane of the detected object, so as to generate an electromagnetic field and an ultrasonic wave transversely to the travel of the tested body, and the simultaneously detected positions correspond to the same radial plane for complete fusion of the detection signals.

[0045] In one embodiment, the ultrasonic magnetic flux leakage detection signal is a rotating ultrasonic magnetic flux leakage imaging signal, and the corresponding ultrasonic magnetic flux leakage detection device is a rotating detection probe device. Rotating ultrasonic and magnetic flux leakage imaging has continuous and uninterrupted detection images. In the case of subtle defects or fatigue stress differences, or slight displacement of the pouring part of the steel wire rope joint, the differences in defects can be more clearly distinguished through continuous detection image comparison and detection image comparison at different positions.

[0046] In another embodiment, the ultrasonic transducer is a ceramic coil piezoelectric ultrasonic transducer, which extracts ultrasonic signals with coupling liquid detection for rotating ultrasonic imaging analysis. Ultrasonic imaging can achieve a detection depth of nearly 20 cm, and has an image spatial resolution of more than 1 m. The depth can be adjusted, which is actually achieved by changing the time of the machine receiving the echo. Ultrasonic imaging uses pulse waves, and the longest time for receiving echoes cannot exceed half of the pulse emission interval, because the echo signal must be returned before the next pulse is emitted to form continuous rotating imaging. The detection signal extraction for depth achieves good results.

[0047] As shown in Figure 3 The rotating ultrasonic transducer is an electromagnetic ultrasonic transducer that receives electromagnetic alternating field emission. The electromagnetic ultrasonic transducer extracts the electromagnetic mechanical vibration wave of the simultaneously emitted vibration magnetic field in the magnetic flux leakage detection to form an electromagnetic ultrasonic wave image signal as a rotating ultrasonic detection image signal. The electromagnetic ultrasonic transducer (EMAT) is a device that generates ultrasonic waves in a conductive metal through electromagnetic energy using electrodynamic method. It has the characteristics of non-contact detection and does not require coupling medium. When a high-frequency coil passes through a high-frequency current, eddy current is generated. Under the action of an external magnetic field, the eddy current is subjected to mechanical force and generates high-frequency vibration to form an ultrasonic wave source. Generally, the EMAT excitation mechanism is based on the Lorentz force. Under the action of the static magnetic field of the magnetic flux leakage detection permanent magnet, the charged particles of the detected metal are subjected to force and produce offset vibration. The continuous mechanical vibration between the charged particles forms a wave, forming an ultrasonic wave source. Therefore, the electromagnetic ultrasonic transducer is applied in the present application, which fully utilizes the magnetic field effect of the magnetic flux leakage detection. The superimposed detection is fused into a synchronous detection signal.

[0048] Moreover, electromagnetic ultrasonic waves, as electromagnetic vibration mechanical waves, are more suitable for detecting the aluminum alloy poured steel wire rope head in the deep steel wire rope joint and the detection between different metal layers. Combined with the magnetic flux leakage detection device for accurately detecting the surface connector, the comprehensive analysis and evaluation of the entire steel wire rope joint defect situation are realized after fusion and superposition.

[0049] As shown in Figures 1 to 13As shown, the application also discloses a container type ultrasonic magnetic flux leakage wire rope joint detection device, which is used for the defect evaluation detection method of large metal rope joint 1 such as an aircraft carrier arresting cable. The general arresting cable joint 1 has a socket 11 and a steel wire rope head 13 of a metal rope 12 poured with zinc alloy in the socket. The detection device 2 is electrically connected to a detection and analysis instrument 3. During the detection process, the arresting cable joint 1 is inserted into the detection device 2 with a conforming cylindrical shape for nondestructive testing. It includes a cylindrical main body 20, a magnetic flux leakage detection device 21 and an ultrasonic detection device 22. The magnetic flux leakage detection device 21 includes a magnetic flux leakage detection sensor 211, a first permanent magnet 212a and a second permanent magnet 212b. The ultrasonic detection device 22 includes an ultrasonic transducer 221.

[0050] As shown in Figure 3 The magnetic flux leakage detection sensor 211, the first permanent magnet 212a and the second permanent magnet 212b of the magnetic flux leakage detection device 21, and the ultrasonic transducer 221 of the ultrasonic detection device 22 are arranged on the same radial surface of the main body 20. The ultrasonic transducer 221 is arranged between the first permanent magnet 212a and the second permanent magnet 212b in parallel with the magnetic flux leakage detection sensor 211. In order to superimpose the signals of the same position detected by the ultrasonic transducer 221 and the magnetic flux leakage detection sensor 211, the ultrasonic transducer 221 is arranged between the two permanent magnets of the magnetic flux leakage detection device, and the signals detected by the magnetic flux leakage detection sensor 211 are synchronized.

[0051] As shown in Figures 1 to 13 The main body 20 of the container type ultrasonic magnetic flux leakage wire rope joint detection device also includes a rotating device for driving the magnetic flux leakage detection device 21 and the ultrasonic detection device 22 to rotate on the same radial surface. The main body 20 can be arranged in a double-layer structure, with a rotatable detection device protection layer 201 as the outer layer, a wear-resistant layer 202 as the inner layer, and a rotating mechanism 203 arranged between the double layers at the bottom end of the main body. The rotating mechanism 203 drives the detection device protection layer 201 to rotate relative to the wear-resistant layer 202 in a self-rotating manner, drives the ultrasonic magnetic flux leakage detection device arranged on the same radial surface of the main body to rotate, superimposes the rotating ultrasonic magnetic flux leakage imaging information of the same position of the detected object, and comprehensively analyzes the detection data of the steel wire rope socket and the poured steel wire rope head to evaluate the fatigue state of the metal joint.

[0052] As shown in Figure 4As shown, the device also includes a detection probe bracket 23, which comprises a horizontal bracket 231 and a vertical bracket 232. The cylindrical main body 20 is connected and fixed to the horizontal bracket 231 and the vertical bracket 232 in a triangular support configuration. This allows the main body 20 of the detection device 2 to be placed at a certain angle to the ground plane, creating a very stable placement structure with the triangular bracket. Since large metal ropes are of considerable length and weight, such as arresting cables, movement requires specialized equipment. Maintaining the steel wire rope perfectly vertical during detection is challenging. When the detection device is placed at an angle to the ground plane, it allows for more user-friendly placement and reduces the difficulty of the detection operation.

[0053] like Figures 6 to 8 As shown, the angle at which the main body 20 is fixed by the triangular support is set to any angle between 5 and 45 degrees. A preferred angle is 15 to 45 degrees, with 30 degrees being the most user-friendly setting. At the corresponding angle of the triangular support of the main body 20, the end face of its open end 204 is set as a cross-sectional opening of the corresponding horizontal plane. Since general ultrasonic testing devices require coupling agent, a horizontal cross-sectional opening is more suitable for liquid storage. For example... Figure 6 The center is at a 45-degree angle, such as Figure 7 The center is a 30-degree angle, such as Figure 8 The central angle is 15 degrees, and the corresponding opening end faces are different elliptical surfaces. A one-way valve diaphragm 205 is installed at the opening end 204 of the horizontal plane cross-section. The one-way valve diaphragm 205 is made of a flexible rubber material; it opens when the wire rope joint is inserted and rebounds after being pulled out, creating a one-way seal with the coupling agent in the liquid. This facilitates the handling of the detection device and prevents the coupling agent from spilling. Figure 5 When the center is vertical, it has a circular one-way valve diaphragm structure. Figure 6 Figure 7 and Figure 8 The diagram shows an elliptical one-way valve diaphragm structure at angles of 45 degrees, 30 degrees, and 15 degrees, with the diaphragm opening centered at the center of the circle. Another example... Figure 9 As shown, in the elliptical one-way valve diaphragm structure, the center of the opening can be positioned on the side of the opening that is offset away from the support. The one-way valve diaphragm not only has a sealing effect, but also, as... Figures 10 to 13 As shown, when the metal to be detected, such as the barrier cable connector, is inserted into the detection device, the diaphragms of the one-way valve elastically open and fold, which also has the function of stabilizing the metal connector to be detected in the center position of the inner cavity of the detection device, thus achieving positioning.

[0054] The above is one embodiment of the present invention. Furthermore, it should be noted that any equivalent or simple variations made to the structure, features, and principles described in this patent concept are included within the scope of protection of this patent.

Claims

1. A method for inspecting a wire rope joint of a vessel using ultrasonic magnetic flux leakage, characterized in that The fatigue state of the metal joint is evaluated by superimposing the rotating ultrasonic magnetic flux leakage imaging information of the detected object at the same position, comprehensively analyzing the detection data of the steel wire rope socket and the cast steel wire rope head, and the specific method steps are as follows: a. Scan detection: install the rotating ultrasonic magnetic flux leakage detection device on the detected metal joint part to perform ultrasonic and magnetic flux leakage rotating scan detection; b. Signal image extraction: extract the image information of the rotating magnetic flux leakage detection signal and the image information of the ultrasonic transducer detection signal, and send them to the detection analysis instrument; c. Image reconstruction: superimpose the rotating ultrasonic and magnetic flux leakage detection signals, and extract the defect information by image reconstruction; d. Comprehensive defect analysis: analyze the defect information of the outer steel wire rope socket based on the magnetic flux leakage detection signal, combine the defect information of the internal cast part based on the ultrasonic detection signal, and comprehensively analyze the fatigue state of the entire steel wire rope joint; the ultrasonic magnetic flux leakage detection signal is the rotating ultrasonic magnetic flux leakage imaging signal, and the corresponding ultrasonic magnetic flux leakage detection device is the rotating detection probe device.

2. The method according to claim 1, characterized in that The ultrasonic transducer is a ceramic coil piezoelectric ultrasonic transducer that extracts ultrasonic signals with coupling liquid detection for rotating ultrasonic imaging analysis.

3. The method according to claim 1, characterized in that The rotating ultrasonic transducer is an electromagnetic ultrasonic transducer that receives electromagnetic alternating field emission electromagnetic ultrasonic signals. The electromagnetic ultrasonic transducer extracts the electromagnetic mechanical vibration wave of the simultaneously emitted vibration magnetic field in the magnetic flux leakage detection to form the detected electromagnetic ultrasonic wave image signal as the rotating ultrasonic detection image signal.

4. A container-type ultrasonic magnetic flux leakage wire rope joint inspection apparatus characterized by It comprises a cylindrical main body (20), a magnetic flux leakage detection device (21), and an ultrasonic detection device (22). The magnetic flux leakage detection device (21) comprises a magnetic flux leakage detection sensor (211), a first permanent magnet (212a), and a second permanent magnet (212b). The ultrasonic detection device (22) comprises an ultrasonic transducer (221); Wherein, the magnetic flux leakage detection sensor (211), the first permanent magnet (212a), and the second permanent magnet (212b) of the magnetic flux leakage detection device (21), and the ultrasonic transducer (221) of the ultrasonic detection device (22) are arranged on the same radial surface of the main body (20). The ultrasonic transducer (221) is arranged side by side with the magnetic flux leakage detection sensor (211) between the first permanent magnet (212a) and the second permanent magnet (212b). The main body (20) further comprises a rotating device for driving the magnetic flux leakage detection device (21) and the ultrasonic detection device (22) to rotate on the same radial surface.

5. The containerized ultrasonic magnetic flux leakage wire rope joint inspection apparatus of claim 4, wherein It further comprises a detection probe support (23), which comprises a horizontal support (231) and a vertical support (232). The cylindrical main body (20) is connected and fixed with the horizontal support (231) and the vertical support (232) in a triangular support mode.

6. The containerized ultrasonic magnetic flux leakage wire rope joint inspection apparatus of claim 5, wherein The angle of the triangular support of the main body (20) is set to any angle between 5 to 45 degrees.

7. The containerized ultrasonic magnetic flux leakage wire rope joint inspection apparatus of claim 6, wherein In the corresponding angle of the triangular support of the main body (20), the end face of the opening end (204) is set as a corresponding horizontal cross-section.

8. The containerized ultrasonic magnetic flux leakage wire rope joint inspection apparatus of claim 4, wherein Also included is a one-way valve membrane (205) disposed at the open end (204) of the horizontal plane cross-section port.

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