A kind of phononic crystal elastic wave-based ground wire flaw detection assembly

Abstract

The application is suitable for the technical field of electric power maintenance, and provides a guide wire flaw detection assembly based on phonon crystal elastic waves, which comprises a case, a flaw detection host, a data collector, a power amplifier and a charge amplifier are arranged in the case; a placing shell is fixed on one side of the case, a first flaw detection clamp and a second flaw detection clamp are arranged in the placing shell; a sensor and an exciter are arranged on the first flaw detection clamp and the second flaw detection clamp respectively, the exciter is used for generating phonon crystal elastic waves, and the sensor is used for receiving phonon crystal elastic wave signals reflected by the guide wire. The guide wire flaw detection assembly based on phonon crystal elastic waves provided by the scheme solves the technical problems that the traditional guide wire detection method is inefficient and it is difficult to find small internal defects.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of power maintenance, and particularly relates to a ground wire flaw detection assembly based on phononic crystal elastic waves. BACKGROUND

[0002] In a power transmission system, as a key component of high-voltage transmission lines, the safe and stable operation of ground wires is directly related to the overall reliability and power supply quality of the power grid. However, long-term exposure to harsh natural environments, ground wires are prone to various forms of damage, including but not limited to fatigue cracks, corrosion and erosion, and potential fracture risks. If these internal or minor defects are not discovered and repaired in time, they may cause serious safety accidents and pose a significant threat to the safety of the power grid.

[0003] Traditional ground wire detection methods mainly rely on manual visual inspection or the use of simple electrical test equipment. Although manual visual inspection is intuitive, it is inefficient and difficult to find minor defects hidden inside the wire. Simple electrical test equipment can only detect changes in surface electrical properties and is powerless against internal structural damage. Therefore, it is particularly important to explore a new technology that can efficiently and accurately detect internal defects in ground wires.

[0004] In recent years, as a new type of artificial microstructure material, phononic crystals have attracted attention due to their unique sound wave propagation characteristics. Phononic crystals are formed by periodically arranging scatterers (such as particles, holes, etc.) in a matrix, which can control the propagation of sound waves and produce special phenomena such as band gaps (i.e. frequency ranges where sound waves cannot propagate). This characteristic provides a new approach to non-destructive testing technology, i.e. using phononic crystal elastic waves to detect internal defects in materials. When phononic crystal elastic waves propagate in materials, they encounter defects and undergo reflection, scattering or transmission, etc. These phenomena carry information about the location, size and shape of the defects. By designing appropriate phononic crystal structures and excitation methods, specific frequency and mode elastic waves can be generated, and high-sensitivity sensors can be used to receive and analyze the propagation characteristics of these waves, thereby achieving non-destructive testing of internal defects in materials. Based on the above background, the application provides a ground wire flaw detection assembly based on phononic crystal elastic waves. SUMMARY

[0005] To solve the technical problem of low efficiency and difficulty in finding minor internal defects in traditional ground wire detection methods, the application provides a ground wire flaw detection assembly based on phononic crystal elastic waves.

[0006] The application is achieved in the following way, a guide wire flaw detection assembly based on phonon crystal elastic wave, comprising: a cabinet, wherein a flaw detection host, a data collector, a power amplifier and a charge amplifier are arranged; a placing shell fixed on one side of the cabinet, wherein a first flaw detection clamp and a second flaw detection clamp are arranged in the placing shell; a sensor and an exciter arranged on the first flaw detection clamp and the second flaw detection clamp respectively, wherein the exciter is used for generating phonon crystal elastic wave, and the sensor is used for receiving phonon crystal elastic wave signals reflected by the guide wire; clamping blocks arranged on the first flaw detection clamp and the second flaw detection clamp respectively and having adjustable spacing, which are respectively used for assembling the sensor and the exciter and can also be used for clamping the guide wire and positioning a detection area; and an adjusting mechanism arranged on the first flaw detection clamp and the second flaw detection clamp respectively and used for adjusting the spacing of the clamping blocks.

[0007] Preferably, the adjusting mechanism comprises: a mounting frame arranged above the clamping blocks, wherein a mounting shell is fixed on the top of the mounting frame; an assembling frame slidingly mounted on the mounting frame, wherein one end of the assembling frame penetrates into the mounting shell; a connecting sleeve detachably connected to one end of the assembling frame, wherein the connecting sleeve is fixedly connected with the clamping blocks; and a bolt arranged on the connecting sleeve and used for limiting, wherein the bolt is screwed through the assembling frame.

[0008] Preferably, a limiting mechanism for limiting the assembling frame is arranged on the mounting shell, wherein the limiting mechanism comprises: a mounting rod fixed in the mounting shell, wherein a first spring is sleeved on the mounting rod; a limiting frame slidingly sleeved on the mounting rod; a limiting block fixed on the limiting frame, wherein the limiting block is clamped with the assembling frame; and a connecting frame slidingly mounted on the mounting shell, wherein the bottom end of the connecting frame is fixedly connected with the top of the limiting frame, and a first pressing block is fixed on the top of the connecting frame.

[0009] Preferably, a reset mechanism for resetting the assembling frame is arranged on the mounting shell, wherein the reset mechanism comprises: an assembling plate fixed on the top of the mounting frame, wherein a mounting cylinder is fixed on the assembling plate; a second spring arranged in the mounting cylinder; and a pressing block slidingly mounted in the mounting cylinder, wherein a sliding rod is fixedly mounted on the pressing block, and one end of the sliding rod is fixedly connected with the assembling frame.

[0010] Preferably, a plurality of tooth blocks are fixed on the assembling frame, a gear is rotatably mounted in the mounting shell, the gear is engaged with the tooth blocks, a through hole is formed in the mounting shell, and the through hole is matched with the sliding rod.

[0011] Preferably, a through opening is formed in the mounting shell, the through opening is matched with the assembling frame, a plurality of balls are inlaid in the through opening, and the balls are in contact with the assembling frame.

[0012] Preferably, assembly holes are formed on the clamping block, the assembly holes are matched with the exciter and the sensor, mounting pieces are arranged on the exciter and the sensor, and the mounting pieces are fixedly connected with the clamping block through screws.

[0013] Preferably, a second pressing block is fixedly installed on the assembly frame, an arc-shaped groove is arranged on the second pressing block, and the second pressing block is made of rubber.

[0014] Preferably, a first cabinet door that can be opened and closed is arranged on the cabinet, the first cabinet door is hinged to the cabinet through a first hinge, a visual observation window and a door lock are arranged on the first cabinet door.

[0015] Preferably, a second cabinet door that can be opened and closed is arranged on the placing shell, the second cabinet door is hinged to the placing shell through a second hinge, and a handle for gripping and lifting is arranged on the top of the cabinet.

[0016] Compared with the related art, the guide wire flaw detection assembly based on phonon crystal elastic waves provided by the application has the following beneficial effects:

[0017] Through integrated control and data processing of the flaw detection host, the automation of the detection process is realized, and the detection efficiency is improved; the power amplifier and the charge amplifier ensure the strength and recognition degree of the signal, and the accuracy and reliability of the detection are improved; the spacing of the clamping blocks is adjustable, so that the assembly can adapt to guide wires of different sizes, and the universality and flexibility of the detection are enhanced; the accurate positioning of the sensor and the exciter, combined with the stable clamping of the clamping blocks, improves the positioning accuracy of the detection area. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A side view structural schematic diagram of the guide wire flaw detection assembly based on phonon crystal elastic waves provided by the application is shown in the figure;

[0019] Figure 2 A side view structural schematic diagram of the guide wire flaw detection assembly based on phonon crystal elastic waves provided by the application is shown in the figure;

[0020] Figure 3 A front view structural schematic diagram of the first flaw detection clamp in the application is shown in the figure;

[0021] Figure 4 A front view structural schematic diagram of the first flaw detection clamp in the application is shown in the figure;

[0022] Figure 5 A Figure 4 An enlarged structural schematic diagram of part A shown in the figure;

[0023] Figure 6 A Figure 4 An enlarged structural schematic diagram of part B shown in the figure;

[0024] Figure 7 For Figure 4 Enlarged structural schematic view of part C shown in the figure;

[0025] Figure 8 For Figure 4 Enlarged structural schematic view of part D shown in the figure;

[0026] Figure 9 Structural schematic view of the assembly frame and the tooth block in the application;

[0027] Figure 10 Structural schematic view of the limiting frame and the limiting block in the application;

[0028] Figure 11 Assembly schematic view of the first flaw detection clamp, the second flaw detection clamp and the ground wire in the application.

[0029] The figure shows: 1, the case; 2, the flaw detection host; 3, the data collector; 4, the power amplifier; 5, the charge amplifier; 6, the placement shell; 7, the first flaw detection clamp; 8, the second flaw detection clamp; 9, the clamp block; 10, the mounting piece; 101, the exciter; 11, the sensor; 12, the mounting frame; 13, the mounting shell; 14, the assembly frame; 15, the connecting sleeve; 16, the first spring; 17, the limiting frame; 18, the limiting block; 19, the connecting frame; 20, the first pressing block; 21, the assembly plate; 22, the mounting cylinder; 23, the second spring; 24, the pressing block; 25, the sliding rod; 26, the tooth block; 27, the gear; 28, the through opening; 29, the ball; 30, the through hole; 31, the assembly hole; 32, the bolt; 33, the second pressing block; 34, the first case door; 35, the first hinge; 36, the second case door; 37, the second hinge; 38, the handle; 39, the ground wire; 40, the mounting rod. DETAILED DESCRIPTION

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the terms "comprises", "comprising", "includes", "including" and "has", "having" as used herein are intended to be interpreted as specifying the presence of the stated features or components rather than precluding the presence or addition of further features or components; the terms "first", "second" and the like as used herein do not denote any order, quantity, combination or arrangement, but are used to distinguish one element from another.

[0031] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the other embodiments, alternative embodiments, or claims. It is explicitly contemplated that embodiments described herein can be combined with each other in their individual and / or alternative embodiments.

[0032] The embodiment of the application provides a guided wire flaw detection assembly based on phononic crystal elastic waves. Figures 1-11 As shown in the figure, the guided wire flaw detection assembly based on phononic crystal elastic waves comprises a cabinet 1, a flaw detection main machine 2, a data collector 3, a power amplifier 4 and a charge amplifier 5 which are arranged in the cabinet 1, a placing shell 6 which is fixed on one side of the cabinet 1, a first flaw detection clamp 7 and a second flaw detection clamp 8 which are arranged in the placing shell 6, a sensor 11 and an exciter 101 which are arranged on the first flaw detection clamp 7 and the second flaw detection clamp 8 respectively, the exciter 101 is used for generating phononic crystal elastic waves, and the sensor 11 is used for receiving phononic crystal elastic wave signals reflected by a guided wire 39, clamping blocks 9 which are arranged on the first flaw detection clamp 7 and the second flaw detection clamp 8 respectively and have an adjustable interval, are respectively used for assembling the sensor 11 and the exciter 101, and can also be used for clamping the guided wire 39 and positioning a detection area, and adjusting mechanisms which are arranged on the first flaw detection clamp 7 and the second flaw detection clamp 8 respectively and are used for adjusting the interval of the clamping blocks 9.

[0033] In this embodiment, the chassis 1 is the core support and integration unit of the entire flaw detection assembly, and the main electronic devices of the flaw detection system are integrated inside; the flaw detection host 2 is responsible for controlling the entire flaw detection process, including starting signal sending, data processing, and result display; the data collector 3 collects the phononic crystal elastic wave signals received by the sensor with high sensitivity, providing accurate data for subsequent analysis; the power amplifier 4 enhances the intensity of the phononic crystal elastic wave signals generated by the exciter, ensuring that enough energy penetrates the measured ground wire; the charge amplifier 5 amplifies the weak signals received by the sensor to improve the signal recognition and signal-to-noise ratio; the placement shell 6 is fixed on one side of the chassis 1, providing a stable installation environment for the flaw detection clamp and detection elements; the first flaw detection clamp 7 and the second flaw detection clamp 8: respectively set the sensor 11 and the exciter 101, ensuring accurate positioning and clamping of the ground wire; the sensor 11 receives the phononic crystal elastic wave signals reflected by the ground wire 39, capturing the waveform changes caused by internal defects; the exciter 101 generates phononic crystal elastic waves of a specific frequency and mode, which are used to detect potential defects inside the ground wire; the spacing of the clamping block 9 is adjustable, and the sensor 11 and the exciter 101 are assembled, while clamping the ground wire 39 and positioning the detection area; the adjusting mechanism is provided on the flaw detection clamp, which is used to flexibly adjust the spacing of the clamping block 9 to adapt to ground wires of different sizes and detection requirements; through the design of automation and integration, the efficiency of ground wire detection is significantly improved, and the time cost of manual intervention and visual inspection is reduced; using the unique propagation characteristics of phononic crystal elastic waves, it can deeply detect the tiny defects inside the ground wire, including structural damage and hidden cracks, far exceeding the detection capability of traditional electrical test equipment; as a non-contact or slight contact detection method, it will not cause physical damage to the ground wire, ensuring the integrity of the detected object and the safety of subsequent use; the design of adjustable spacing of the clamping block makes the flaw detection assembly applicable to ground wires of different specifications and models, enhancing the versatility and flexibility of the equipment; through the above structure and function design, the shortcomings of traditional detection methods in efficiency and accuracy are effectively solved, providing strong technical support for the safe detection and maintenance of ground wires.

[0034] In further preferred embodiments of the present application, the adjusting mechanism includes: a mounting bracket 12 arranged above the clamping block 9, the top of the mounting bracket 12 being fixed with a mounting shell 13; an assembly bracket 14 slidingly mounted on the mounting bracket 12, one end of the assembly bracket 14 penetrating into the mounting shell 13; a detachable connecting sleeve 15 sleeved on one end of the assembly bracket 14, the connecting sleeve 15 being fixedly connected with the clamping block 9; a screw 32 arranged on the connecting sleeve 15 and used for limiting, the screw 32 being threaded through the assembly bracket 14.

[0035] In the embodiment, the mounting frame 12 is located above the clamping blocks 9, providing a stable sliding track for the assembly frame 14, ensuring the smoothness and accuracy of the adjustment process; the mounting shell 13 is fixed on the top of the mounting frame 12, providing necessary support and protection for the adjustment mechanism; the assembly frame 14 is slidingly installed on the mounting frame 12, and the adjustment of the distance between the clamping blocks 9 is realized through the sliding movement of the assembly frame 14; the connecting sleeve 15 is sleeved on one end of the assembly frame 14 and is fixedly connected with the clamping blocks 9. This design enables the sliding of the assembly frame 14 to directly drive the clamping blocks 9 to move, thereby adjusting the distance between the clamping blocks 9; the bolt 32 is arranged on the connecting sleeve 15 and is used to fasten the connecting sleeve 15 and the assembly frame 14 together to prevent loosening or displacement during detection. The bolt 32 is threaded through the assembly frame 14, and the tight connection between the connecting sleeve 15 and the assembly frame 14 can be realized by rotating the bolt 32; by pressing the assembly frame 14 in the same direction, the distance between the two clamping blocks 9 is reduced, so as to clamp the ground wire 39, thereby realizing the distance adjustment. When the clamping blocks 9 clamp the ground wire 39, the exciter 101 and the sensor 11 will be in contact with the ground wire 39.

[0036] In a further preferred embodiment of the present application, a limiting mechanism for limiting the assembly frame 14 is arranged on the mounting shell 13, and the limiting mechanism comprises: a mounting rod 40 fixed in the mounting shell 13, a first spring 16 sleeved on the mounting rod 40; a limiting frame 17 slidingly sleeved on the mounting rod 40; a limiting block 18 fixed on the limiting frame 17, the limiting block 18 being clamped with the assembly frame 14; a connecting frame 19 slidingly installed on the mounting shell 13, the bottom end of the connecting frame 19 being fixedly connected with the top of the limiting frame 17, and the top of the connecting frame 19 being fixedly provided with a first pressing block 20.

[0037] In the embodiment, the limiting mechanism includes the mounting rod 40, the first spring 16, the limiting frame 17, the limiting block 18, the connecting frame 19 and the first pressing block 20. When a person presses the assembly frame 14 in the same direction, the assembly frame 14 will move along the sliding track and contact the limiting block 18. The arc surface designed on the limiting block 18 contacts the bottom of the assembly frame 14, and then, with the continuous movement of the assembly frame 14, the arc surface gradually guides the limiting block 18 to move in the direction of the groove on the assembly frame 14. When the assembly frame 14 moves to a certain position, the limiting block 18 is smoothly clamped into the groove on the assembly frame 14, thereby limiting the assembly frame 14 and preventing it from further sliding. Thus, the limiting of the assembly frame 14 is realized. When unlocking is needed, the operator only needs to press the first pressing block 20 downward with the finger. The first pressing block 20 is fixedly connected with the limiting frame 17 through the connecting frame 19, so that pressing the first pressing block 20 drives the connecting frame 19 and the limiting frame 17 to move downward together. With the downward movement of the limiting frame 17, the limiting block 18 fixedly connected with the limiting frame 17 also moves correspondingly and finally separates from the groove of the assembly frame 14, thereby realizing the unlocking. In summary, through the limiting of the assembly frame 14, the stability of the clamping of the clamping block 9 can be ensured.

[0038] In the further preferred embodiment of the application, the mounting shell 13 is provided with a resetting mechanism for resetting the assembly frame 14. The resetting mechanism includes the assembly plate 21 fixed on the top of the mounting frame 12, the mounting cylinder 22 fixed on the assembly plate 21, the second spring 23 arranged in the mounting cylinder 22, and the pressing block 24 slidingly arranged in the mounting cylinder 22, wherein the sliding rod 25 is fixedly arranged on the pressing block 24 and one end of the sliding rod 25 is fixedly connected with the assembly frame 14.

[0039] In the embodiment, the assembly plate 21 is fixed on the top of the mounting frame 12 as the installation basis of the resetting mechanism. The mounting cylinder 22 is fixed on the assembly plate 21 to provide installation space for the second spring 23 and the pressing block 24. The second spring 23 is arranged in the mounting cylinder 22 to provide a resetting force for the pressing block 24. The pressing block 24 is slidingly arranged in the mounting cylinder 22 and connected with the bottom of the mounting cylinder 22 through the second spring 23. One end of the sliding rod 25 is fixed on the pressing block 24 and the other end is fixedly connected with the assembly frame 14 to transmit the resetting force. When the assembly frame 14 is pressed, the sliding rod 25 slides into the mounting cylinder 22, and the pressing block 24 also slides to compress the second spring 23. When the assembly frame 14 is unlocked, the pressing block 24 and the sliding rod 25 slide and drive the assembly frame 14 to reset due to the resetting force of the second spring 23. The resetting mechanism realizes the automatic resetting function of the assembly frame 14 through the resetting force of the second spring 23. The operator only needs to unlock the assembly frame 14 to realize the resetting, which is relatively convenient.

[0040] Further preferably, the assembling frame 14 is fixed with a plurality of tooth blocks 26, the mounting shell 13 is rotatably mounted with a gear 27, the gear 27 is engaged with the tooth blocks 26, the mounting shell 13 is provided with a through hole 30, and the through hole 30 is matched with the slide rod 25.

[0041] In the embodiment, the tooth blocks 26 are fixed on the assembling frame 14 as the components engaged with the gear 27, the gear 27 is rotatably mounted in the mounting shell 13 and engaged with the tooth blocks 26 for transmitting power and adjusting the position of the assembling frame 14, and the through hole 30 is provided on the mounting shell 13 and matched with the slide rod 25 to allow the slide rod 25 to smoothly slide in the mounting shell 13, when the assembling frame 14 is pressed to slide, the gear 27 rotates to cooperate with the tooth blocks 26 to guide the assembling frame 14, thereby preventing the assembling frame 14 from deviating or shaking during the sliding process.

[0042] Further preferably, the mounting shell 13 is provided with a through opening 28, the through opening 28 is matched with the assembling frame 14, the through opening 28 is inlaid with a ball 29, and the ball 29 is in contact with the mounting frame 12.

[0043] In the embodiment, the through opening 28 can ensure that the assembling frame 14 can normally slide. The ball 29 serves as a medium for rolling friction, which reduces the frictional resistance between the assembling frame 14 and the mounting shell 13, and the assembling frame 14 slides more smoothly when it is pressed.

[0044] Further preferably, the clamping block 9 is provided with an assembling hole 31, the assembling hole 31 is matched with the exciter 101 and the sensor 11, the exciter 101 and the sensor 11 are both provided with a mounting sheet 10, and the mounting sheet 10 is fixedly connected with the clamping block 9 by screws.

[0045] In the embodiment, the assembling hole 31 is provided on the clamping block 9 and matched with the exciter 101 and the sensor 11. The assembling hole provides a mounting position for the exciter 101 and the sensor 11, ensuring that they can be accurately fixed on the clamping block 9. The mounting sheet 10 is provided on the exciter 101 and the sensor 11 for connection with the clamping block 9. The mounting sheet 10 usually has a hole position corresponding to the assembling hole 31, so as to be fixedly connected with the clamping block 9 by screws and the like fasteners. The screws are fasteners for fixedly connecting the mounting sheet 10 with the clamping block 9. By tightening the screws, the exciter 101 and the sensor 11 can be stably mounted on the clamping block 9.

[0046] Further preferably, the assembling frame 14 is fixedly mounted with a second pressing block 33, the second pressing block 33 is provided with an arc-shaped groove, and the second pressing block 33 is made of rubber.

[0047] In this embodiment, the second pressing block 33 is fixedly installed on the assembly frame 14 as a user interaction interface. Its design allows users to drive the sliding or other actions of the assembly frame 14 by pressing or operating the block; the arc-shaped slot: provided on the second pressing block 33, the design of this arc-shaped slot may aim to improve the contact area and comfort between the user's hand and the second pressing block 33, while providing better operation guidance or feedback for the user; the second pressing block 33 is made of rubber material. Rubber material has good elasticity, wear resistance and slip resistance, these characteristics make the second pressing block 33 can provide comfortable touch feeling when being pressed, and reduce the possibility of hand sliding; when users need to adjust the position of the assembly frame 14, they will press the second pressing block 33 by fingers or palms. Since the second pressing block 33 is fixedly installed on the assembly frame 14, this pressing force will be converted into the sliding power of the assembly frame 14.

[0048] In further preferred embodiments of the present application, the case 1 is provided with a first box door 34 that can be opened and closed, the first box door 34 is hinged to the case 1 through a first hinge 35, and the first box door 34 is provided with a visual observation window and a door lock.

[0049] In this embodiment, the first box door 34 is provided on the case 1 and has the characteristic of being openable and closable; the first hinge 35 allows the first box door 34 to rotate around a fixed point (i.e. the axis of the hinge), thereby realizing the opening and closing action; the visual observation window: provided on the first box door 34, allows users to observe the inside of the case 1 without opening the door. This helps to carry out preliminary inspection or monitoring without interrupting the operation of the equipment; the door lock: also provided on the first box door 34, is used to lock the first box door 34, ensuring the safety and protection of the inside of the case 1. The door lock can prevent unauthorized access or misuse, protecting the equipment from damage; when access to the inside of the case 1 is needed, the user can use a key or other unlocking method to open the door lock, then rotate the first box door 34 around the first hinge 35 to open it to expose the internal space of the case 1; when there is no need to access the inside, the user can close the first box door 34 and lock it with the door lock to maintain the closed state of the case 1; the visual observation window allows users to check the status of the inside of the case 1 at any time without opening the door, increasing the convenience and safety of the equipment.

[0050] In further preferred embodiments of the present application, the placement shell 6 is provided with a second box door 36 that can be opened and closed, the second box door 36 is hinged to the placement shell 6 through a second hinge 37, and the top of the case 1 is provided with a handle 38 for gripping and lifting.

[0051] In the embodiment, the second box door 36 is arranged on the placing shell 6 and has an openable and closable characteristic. When the first flaw detection clamp 7 and the second flaw detection clamp 8 are taken, the user can first open the handle lock on the second box door 36, and then open the second box door 36 to take.

[0052] It should be noted that the present application relates to circuits and electronic components and modules, which are all prior art and can be implemented by those skilled in the art without further description. The content protected by the present application does not involve improvement of software and methods.

[0053] To sum up, compared with the related art, the flaw detection assembly based on phonon crystal elastic wave guide line of the present application realizes automation of the detection process and improves the detection efficiency through integrated control and data processing of the flaw detection host 2. The power amplifier 4 and the charge amplifier 5 ensure the strength and recognition degree of the signal, thereby improving the accuracy and reliability of the detection. The spacing of the clamping blocks 9 is adjustable, which ensures that the assembly can adapt to guide lines of different sizes and enhances the versatility and flexibility of the detection. The accurate positioning of the sensor 11 and the exciter 101, combined with the stable clamping of the clamping blocks 9, improves the positioning accuracy of the detection area. Through the sliding design of the mounting bracket 12 and the assembly bracket 14, combined with the limiting mechanism, convenient adjustment and stable locking of the spacing of the clamping blocks 9 are realized. The reset mechanism realizes automatic reset of the assembly bracket 14 through the reset force of the second spring 23, simplifies the operation process, and improves the use convenience.

[0054] In several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways.

[0055] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, delete or make other adjustments to the features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope of the present application.

Claims

1. A guided wave inspection assembly based on phononic crystal elastic waves, comprising: It includes: The cabinet (1) is provided with flaw detection host (2), data collector (3), power amplifier (4) and charge amplifier (5) in it; The placing shell (6) is fixed on one side of the cabinet (1), and the first flaw detection clamp (7) and the second flaw detection clamp (8) are arranged in the placing shell (6); The sensor (11) and the exciter (101) are arranged on the first flaw detection clamp (7) or the second flaw detection clamp (8), the exciter (101) is used for generating phonon crystal elastic wave, and the sensor (11) is used for receiving phonon crystal elastic wave signal reflected by ground wire (39); Flaw detection host (2) is responsible for controlling the whole flaw detection process, including starting signal sending, data processing and result display; Data collector (3) collects the phonon crystal elastic wave signal received by the sensor (11); Power amplifier (4) enhances the intensity of the phonon crystal elastic wave signal generated by the exciter (101), ensures that enough energy penetrates the measured ground wire; The weak signal received by the sensor (11) is amplified by the charge amplifier (5), so as to improve the distinguishability and signal-to-noise ratio of the signal; The clamping block (9) with adjustable spacing is arranged on the first flaw detection clamp (7) or the second flaw detection clamp (8), the clamping block (9) is used for assembling the sensor (11) and the exciter (101), and the clamping block (9) is also used for clamping the ground wire (39) and positioning the detection area; The adjusting mechanism for adjusting the spacing of the clamping block (9) is arranged on the first flaw detection clamp (7) or the second flaw detection clamp (8); The adjusting mechanism includes: The mounting bracket (12) is arranged above the clamping block (9), and the mounting shell (13) is fixed to the top of the mounting bracket (12); The assembly frame (14) is slidably installed on the mounting bracket (12), and one end of the assembly frame (14) penetrates into the mounting shell (13); The connecting sleeve (15) is detachably connected to one end of the assembly frame (14), and the connecting sleeve (15) is fixedly connected with the clamping block (9); The screw (32) is arranged on the connecting sleeve (15) and used for limiting, and the screw (32) is threaded through the assembly frame (14); The limiting mechanism for limiting the assembly frame (14) is arranged on the mounting shell (13), and the limiting mechanism includes: The mounting rod (40) is fixed in the mounting shell (13), and the first spring (16) is sleeved on the mounting rod (40); The limiting frame (17) is slidably sleeved on the mounting rod (40); The limiting block (18) is fixed on the limiting frame (17), and the limiting block (18) is clamped with the assembly frame (14); The connecting frame (19) is slidably installed on the mounting shell (13), the bottom end of the connecting frame (19) is fixedly connected with the top of the limiting frame (17), and the first pressing block (20) is fixed to the top of the connecting frame (19); The reset mechanism for resetting the assembly frame (14) is arranged on the mounting shell (13), and the reset mechanism includes: An assembling plate (21) is fixed on the top of the mounting rack (12), and a mounting cylinder (22) is fixed on the assembling plate (21); A second spring (23) is arranged in the mounting cylinder (22); A pressing block (24) is slidingly arranged in the mounting cylinder (22), and a sliding rod (25) is fixedly arranged on the pressing block (24), and one end of the sliding rod (25) is fixedly connected with the assembling rack (14).

2. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, A plurality of tooth blocks (26) are fixedly arranged on the assembling rack (14), a gear (27) is rotatably arranged in the mounting shell (13), the gear (27) is engaged with the tooth blocks (26), a through hole (30) is arranged on the mounting shell (13), and the through hole (30) is matched with the sliding rod (25).

3. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, A through opening (28) is arranged on the mounting shell (13), the through opening (28) is matched with the assembling rack (14), and a plurality of rolling balls (29) are inlaid in the through opening (28), and the rolling balls (29) are in contact with the mounting rack (12).

4. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, An assembling hole (31) is arranged on the clamping block (9), the assembling hole (31) is matched with the exciter (101) and the sensor (11), mounting pieces (10) are arranged on the exciter (101) and the sensor (11), and the mounting pieces (10) are fixedly connected with the clamping block (9) through screws.

5. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, A second pressing block (33) is fixedly arranged on the assembling rack (14), the second pressing block (33) is provided with an arc-shaped groove, and the second pressing block (33) is made of rubber.

6. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, A first box door (34) is arranged on the case (1), the first box door (34) is hinged to the case (1) through a first hinge (35), and the first box door (34) is provided with a visual observation window and a door lock.

7. The phononic crystal elastic wave based ground wire inspection assembly of claim 1, wherein, A second box door (36) is arranged on the placing shell (6), the second box door (36) is hinged to the placing shell (6) through a second hinge (37), and a handle (38) for gripping is arranged on the top of the case (1).

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