An excitation system for voltage transmission connection fittings detection

Abstract

The present invention relates to the technical field of power transmission connection fittings, and in particular to an excitation system for detecting power transmission connection fittings, a signal generating module for adjusting and adapting the voltage of a circuit; a connection component, comprising a bearing platform and a connector, the bearing platform being arranged on the signal generating module, and the connector being arranged on the bearing platform; a magneto-ultrasonic excitation module being arranged on the left side of the connection component; and a piezoelectric ultrasonic excitation module being arranged on the right side of the connection component. Through the mutual cooperation among the signal generating module, the magneto-ultrasonic excitation module and the piezoelectric ultrasonic excitation module and the action on the connection component, high detection accuracy can be achieved, deep defects can be effectively detected by propagating ultrasound inside a metal structure, and the system is not affected by the surface state. The system can be applied to crimping fittings of different voltage levels, non-destructive detection can be achieved, and high-efficiency detection can be achieved. By utilizing the fast response characteristics of ultrasonic waves, fast detection can be achieved, and detection time and cost can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission connection fittings, and in particular to an excitation system for detecting power transmission connection fittings. Background Art

[0002] At present, the inspection method for the crimping quality of the tension clamps and joint tubes of the ground wire of overhead transmission lines is limited to checking the appearance dimensions of the tension clamps and straight joint tubes with a vernier caliper before and after crimping. Before crimping construction, samples are made in accordance with the requirements of the regulations and sent to the laboratory for grip strength test to determine the crimping grip and check the crimping quality.

[0003] The main methods for quality inspection of hardware crimping are appearance dimension inspection, grip strength test and X-ray inspection after crimping. Appearance dimension inspection cannot reflect the internal crimping status of the tension clamp; the grip strength test is a destructive test, which can only predict the quality of the same batch of products before installation, and cannot accurately determine the quality of all untested and in-service tension clamps.

[0004] X-ray flaw detection equipment is currently widely used. This type of traditional inspection and analysis method has limitations. For example, the equipment is large and heavy, which increases the labor intensity of operators and is not convenient for outdoor high-altitude operations. The detection involves radiation, which requires wearing radiation protective clothing, which is unsafe. The penetration is not strong, the imaging is one-dimensional, and the data analysis of defects is not comprehensive. Summary of the invention

[0005] In view of the limitations of the above-mentioned traditional inspection and analysis methods, such as the large size and heavy weight of the equipment, which increases the labor intensity of the operators, is not convenient for outdoor high-altitude operations, and the detection of radioactivity requires wearing radiation protection clothing, which is unsafe. The penetration is not strong, the imaging is a one-dimensional image, and the data analysis of defects is not comprehensive, the present invention is proposed.

[0006] Therefore, an object of the present invention is to provide an excitation system for detecting power transmission voltage connection fittings.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an excitation system for detecting power transmission connection fittings, comprising:

[0008] Signal generation module, which adjusts and adapts the circuit voltage;

[0009] A connection component, comprising a bearing platform and a connecting piece, wherein the bearing platform is arranged on the signal generating module, and the connecting piece is arranged on the bearing platform;

[0010] A magneto-ultrasonic excitation module is disposed on the left side of the connection component; and

[0011] The piezoelectric ultrasonic excitation module is arranged on the right side of the connection component.

[0012] As a preferred solution of the excitation system for detecting voltage transmission connection fittings of the present invention, the support platform includes a left connecting column and a right connecting column, the left connecting column is fixedly connected to the left side of the support platform, and the right connecting column is fixedly connected to the right side of the support platform.

[0013] As a preferred solution of the present invention, an excitation system for detecting voltage transmission connection fittings, wherein: the connecting part includes a left connecting block fixedly connected to the left connecting column, a right connecting block fixedly connected to the right connecting column, and an isolation frame fixedly connected to the supporting platform, and the isolation frame is arranged between the right connecting blocks and the right connecting blocks, and is mainly used to isolate signal interference.

[0014] As a preferred solution of the excitation system for power transmission connection fittings detection of the present invention, the magneto-ultrasonic excitation module is fixedly connected in the left connecting block, the magneto-ultrasonic excitation module includes a permanent magnet fixedly connected to the left connecting block, a magnetic circuit module fixedly connected on both sides of the permanent magnet, and a nickel strip fixedly connected to the lower side of the magnetic circuit module.

[0015] As a preferred solution of the excitation system for voltage transmission connection fittings detection of the present invention, the magneto-ultrasonic excitation module further comprises a coil frame fixedly connected to the nickel strip, and a linear coil fixedly connected inside the coil frame.

[0016] As a preferred solution of the excitation system for voltage transmission connection fittings detection of the present invention, the linear coil is composed of a middle wire plate, a DC coil wound around the outside of the wire plate, and an AC coil arranged on the upper side of the DC coil.

[0017] As a preferred solution of the excitation system for power transmission voltage connection fittings detection of the present invention, the piezoelectric ultrasonic excitation module is fixedly connected in the right connecting block, and the piezoelectric ultrasonic excitation module includes a structural frame fixedly connected in the right connecting block, and a flexible coupling part fixedly connected to the structural frame.

[0018] As a preferred solution of the excitation system for voltage transmission connection fittings detection of the present invention, the flexible coupling piece is composed of a rubber bag body and a spring, wherein the spring is a U-shaped structure, and vegetable oil is injected into the rubber bag body to assist signal conduction.

[0019] As a preferred solution of the excitation system for voltage transmission connection fitting detection of the present invention, the piezoelectric ultrasonic excitation module further includes a piezoelectric component fixedly connected to the flexible coupling component and an adjustment controller fixedly connected to the piezoelectric component.

[0020] As a preferred solution of the excitation system for voltage transmission connection fittings detection of the present invention, the piezoelectric component includes a first ceramic piezoelectric sensor, a second ceramic piezoelectric sensor, and a third ceramic piezoelectric sensor, all of which are arranged in parallel and between the flexible coupling component and the adjustment controller.

[0021] The beneficial effects of the present invention are as follows: high detection accuracy can be achieved through the mutual cooperation between the signal generating module, the magneto-ultrasonic excitation module and the piezoelectric ultrasonic excitation module and the action on the connecting components; deep defects can be effectively detected by propagating ultrasound inside the metal structure without being disturbed by the surface state; the invention has a wide applicability and can be applied to crimping hardware of different voltage levels; non-destructive detection can be achieved; high-efficiency detection can be achieved; and rapid detection can be achieved by utilizing the rapid response characteristics of ultrasound, thereby saving detection time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 The present invention is a schematic diagram of the overall structure of an excitation system for detecting voltage transmission connection fittings.

[0024] Figure 2 The present invention is a schematic diagram of the internal structure of an excitation system for detecting voltage transmission connection fittings.

[0025] Figure 3 The present invention is a schematic diagram of the structure of a magneto-ultrasonic excitation module of an excitation system for detecting voltage transmission connection fittings.

[0026] Figure 4 The present invention is a schematic diagram of a linear coil structure of an excitation system for detecting voltage transmission connection fittings.

[0027] Figure 5 The present invention is a schematic diagram of the structure of a piezoelectric ultrasonic excitation module of an excitation system for detecting voltage transmission connection fittings. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] Example 1

[0033] Reference Figure 1 - Figure 2 , which is the first embodiment of the present invention, provides an excitation system for voltage transmission connection fitting detection, the system includes a signal generating module, which adjusts and adapts the voltage of the circuit;

[0034] The connection component comprises a bearing platform and a connecting piece, wherein the bearing platform is arranged on the signal generating module, and the connecting piece is arranged on the bearing platform;

[0035] Among them, the signal generation module has a built-in power module and two drive modules. The power module is used to adjust and adapt the voltage of the circuit.

[0036] Specifically, the bearing platform includes a left connecting column and a right connecting column, the left connecting column is fixedly connected to the left side of the bearing platform, and the right connecting column is fixedly connected to the right side of the bearing platform.

[0037] Furthermore, the connecting part includes a left connecting block fixedly connected to the left connecting column, a right connecting block fixedly connected to the right connecting column, and an isolation frame fixedly connected to the supporting platform. The isolation frame is arranged between the right connecting blocks and the right connecting blocks, and is mainly used to isolate signal interference.

[0038] During the operation, first, start the power module built into the signal generating module to provide the required power for the entire system. The power module starts working to adjust and adapt the voltage of the circuit to ensure that the output voltage meets the requirements of specific equipment or systems. Activate the two drive modules in the signal generating module, which are responsible for generating and controlling signals. Install the carrier platform on the signal generating module to ensure that it is stable and can withstand the weight of the connector. On the carrier platform, the left connecting column is fixedly connected to the left side of the carrier platform, and the right connecting column is fixedly connected to the right side of the carrier platform to provide support for the connector. The left connecting block is fixedly connected to the left connecting column, and the right connecting column is fixedly connected to the right connecting column. Fixedly connect the right connection block, and fixedly connect the isolation frame on the carrier platform to ensure that it is located between the right connection block and the left connection block to isolate signal interference. After all components are installed in place, perform a signal transmission test to verify the stability of the signal and the isolation effect of the isolation frame. According to the test results, fine-tune the voltage regulation and adaptation of the signal generating module to optimize the signal transmission quality. During operation, continuously monitor the signal stability and the status of the circuit to ensure that the system runs in the best state, and perform necessary maintenance. According to actual usage, optimize the system, including adjusting the parameters of the drive module to adapt to different signal transmission requirements.

[0039] Example 2

[0040] Reference Figure 1 - Figure 4 , which is the first embodiment of the present invention, provides an excitation system for voltage transmission connection fittings detection, the system includes a magneto-ultrasonic excitation module, which is arranged on the left side of the connection component, the magneto-ultrasonic excitation module is softly connected to the signal generating module, and the magneto-ultrasonic excitation module is driven by the built-in driving module of the signal generating module.

[0041] Specifically, the magneto-ultrasonic excitation module is fixedly connected in the left connecting block, and the magneto-ultrasonic excitation module includes a permanent magnet fixedly connected to the left connecting block, a magnetic circuit module fixedly connected on both sides of the permanent magnet, and a nickel strip fixedly connected on the lower side of the magnetic circuit module.

[0042] Furthermore, the magneto-ultrasonic excitation module also includes a coil frame fixedly connected to the nickel strip, and a linear coil fixedly connected inside the coil frame.

[0043] Furthermore, the linear coil is composed of a wire plate in the middle, a DC coil wound around the outside of the wire plate, and an AC coil arranged on the upper side of the DC coil.

[0044] During the operation, the signal generation module is first started. The module has a built-in power module and two drive modules. The power module is responsible for adjusting and adapting the circuit voltage to provide a stable power supply for the system. The built-in drive module of the signal generation module drives the magneto-ultrasonic excitation module. The magneto-ultrasonic excitation module is fixedly connected to the left connection block and includes a permanent magnet, a magnetic circuit module and a nickel belt. The nickel belt generates magneto-ultrasonic waves through magnetostriction. A linear coil is arranged on the upper layer of the nickel belt, and the outer side of the coil is a coil frame for fixing the coil. The magnetic circuit modules are arranged on both sides of the coil, and the upper side of the coil is a permanent magnet. The linear coil consists of a wire plate in the middle, a DC coil wound on the outer side of the wire plate, and an AC coil arranged on the upper side of the DC coil. By passing an excitation current into the coil, an alternating magnetic field is generated, which works together with the constant bias magnetic field generated by the permanent magnet to emit ultrasonic guided waves perpendicular to the coil wire and the constant bias magnetic field. According to the sound propagation principle in the solid plate, including the propagation law of SH-type guided waves and the principle of wave superposition, the optimal excitation frequency is obtained. By optimizing the design of the electromagnetic ultrasonic excitation probe at this frequency, the mode enhancement and suppression are effectively achieved. The receiving module receives the ultrasonic guided waves emitted by the magneto-ultrasonic excitation module and converts them into electrical signals. These signals are then amplified and processed to extract deep information about the material being tested. The data obtained from the electromagnetic ultrasonic detection channel and the eddy current detection channel are comprehensively analyzed using a data fusion method to obtain information about the continuity of the internal and external parts of the metal material. During operation, the stability of the signal and the state of the circuit are continuously monitored to ensure that the system operates in the best state and perform necessary maintenance.

[0045] Example 3

[0046] Reference Figure 1 - Figure 5 , which is the first embodiment of the present invention, provides an excitation system for voltage transmission connection fittings detection, the system includes a piezoelectric ultrasonic excitation module, which is arranged on the right side of the connection component. The piezoelectric ultrasonic excitation module is softly connected to the signal generating module and driven by another driving module in the signal generating module.

[0047] Specifically, the piezoelectric ultrasonic excitation module is fixedly connected in the right connecting block, and the piezoelectric ultrasonic excitation module includes a structural frame fixedly connected in the right connecting block, and a flexible coupling member fixedly connected to the structural frame.

[0048] Furthermore, the flexible coupling piece is composed of a rubber bag body and a spring, wherein the spring is a U-shaped structure, and vegetable oil is injected into the rubber bag body to assist in signal conduction.

[0049] Furthermore, the piezoelectric ultrasonic excitation module also includes a piezoelectric component fixedly connected to the flexible coupling component, and an adjustment controller fixedly connected to the piezoelectric component, wherein the adjustment controller includes two servo motors.

[0050] Furthermore, the piezoelectric element includes a first ceramic piezoelectric sensor, a second ceramic piezoelectric sensor, and a third ceramic piezoelectric sensor, all of which are arranged in parallel and between the flexible coupling element and the adjustment controller;

[0051] Among them, the flexible coupling part is composed of a rubber bag and a spring, located under the ceramic piezoelectric sensor, which is designed to inject ultrasonic waves into the sensor well. The flexible coupling device is similar to multiple U-shaped springs, made of rubber parts, and has built-in vegetable oil (peanut oil).

[0052] During the operation, the signal generating module is first started. The module has a built-in power module and two driving modules, one of which is used to drive the piezoelectric ultrasonic excitation module. The piezoelectric ultrasonic excitation module is softly connected to the signal generating module and fixedly connected to the right connecting block, including a structural frame and a flexible coupling. The flexible coupling consists of a rubber bag body and a spring, wherein the spring is a U-shaped structure. Vegetable oil is injected into the rubber bag body to assist in signal conduction. The piezoelectric ultrasonic excitation module also includes a piezoelectric component fixedly connected to the flexible coupling component and an adjustment controller fixedly connected to the piezoelectric component. The piezoelectric component includes a first ceramic piezoelectric sensor, a second ceramic piezoelectric sensor, and a third ceramic piezoelectric sensor. The three are arranged in parallel and between the flexible coupling component and the adjustment controller. In order to improve the coupling of ultrasonic energy in metal materials In order to improve the efficiency, an adjustment device of the ceramic piezoelectric sensor is designed. The interior is mainly composed of two servo motors and is located above the sensor. The main function of the servo motor is to minimize the incident loss of the ultrasonic signal on the surface of the metal structure. It is used to adjust the incident angle and fit of the ultrasonic signal. When voltage acts on the piezoelectric ceramic, the piezoelectric ceramic will produce mechanical deformation with the changes in voltage and frequency and emit ultrasonic waves. On the contrary, when ultrasonic vibration is applied to the dual piezoelectric chip element, an electrical signal will be generated to realize the transmission and reception of the signal. According to actual usage, the system is optimized, including adjusting the position of the servo motor to adapt to different detection needs and improve detection accuracy, recording the effect of the servo motor after adjustment, and analyzing the propagation characteristics of the ultrasonic signal to optimize the subsequent operation process and improve the detection efficiency of the system.

[0053] The above constitutes the operation process based on the piezoelectric ultrasonic excitation module, which involves the startup, connection, signal transmission and reception of the piezoelectric ultrasonic excitation module, as well as the optimization and adjustment of the system. These steps ensure that the system can effectively perform ultrasonic testing and material analysis.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values, mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "system plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, improvements, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0055] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0056] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, without undue experimentation, the development effort will be a routine task of design, fabrication, and production.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An excitation system for voltage transmission connection fitting detection, characterized in that: include, Signal generation module, which adjusts and adapts the circuit voltage; A connection component, comprising a bearing platform and a connecting piece, wherein the bearing platform is arranged on the signal generating module, and the connecting piece is arranged on the bearing platform; A magneto-ultrasonic excitation module is disposed on the left side of the connection component; and The piezoelectric ultrasonic excitation module is arranged on the right side of the connection component.

2. The excitation system for voltage transmission connection fitting detection according to claim 1, characterized in that: The bearing platform comprises a left connecting column and a right connecting column, wherein the left connecting column is fixedly connected to the left side of the bearing platform, and the right connecting column is fixedly connected to the right side of the bearing platform.

3. The excitation system for voltage transmission connection fitting detection according to claim 2, characterized in that: The connecting member includes a left connecting block fixedly connected to the left connecting column, a right connecting block fixedly connected to the right connecting column, and an isolation frame fixedly connected to the supporting platform. The isolation frame is arranged between the right connecting blocks and the right connecting blocks, and is mainly used to isolate signal interference.

4. The excitation system for voltage transmission connection fitting detection according to claim 3, characterized in that: The magneto-ultrasonic excitation module is fixedly connected in the left connecting block, and the magneto-ultrasonic excitation module includes a permanent magnet fixedly connected to the left connecting block, a magnetic circuit module fixedly connected on both sides of the permanent magnet, and a nickel strip fixedly connected on the lower side of the magnetic circuit module.

5. The excitation system for voltage transmission connection fitting detection according to claim 4, characterized in that: The magneto-ultrasonic excitation module further comprises a coil frame fixedly connected to the nickel strip, and a linear coil fixedly connected inside the coil frame.

6. The excitation system for voltage transmission connection fitting detection according to claim 5, characterized in that: The linear coil is composed of a wire plate in the middle, a DC coil wound outside the wire plate, and an AC coil arranged on the upper side of the DC coil.

7. The excitation system for voltage transmission connection fitting detection according to claim 5 or 6, characterized in that: The piezoelectric ultrasonic excitation module is fixedly connected in the right connecting block, and the piezoelectric ultrasonic excitation module includes a structural frame fixedly connected in the right connecting block, and a flexible coupling piece fixedly connected to the structural frame.

8. The excitation system for voltage transmission connection fitting detection according to claim 7, characterized in that: The flexible coupling piece is composed of a rubber bag body and a spring, wherein the spring is a U-shaped structure, and vegetable oil is injected into the rubber bag body to assist in signal conduction.

9. The excitation system for voltage transmission connection fitting detection according to claim 8, characterized in that: The piezoelectric ultrasonic excitation module further includes a piezoelectric component fixedly connected to the flexible coupling component, and an adjustment controller fixedly connected to the piezoelectric component.

10. The excitation system for voltage transmission connection fitting detection according to claim 9, characterized in that: The piezoelectric component includes a first ceramic piezoelectric sensor, a second ceramic piezoelectric sensor, and a third ceramic piezoelectric sensor, all of which are arranged in parallel and between the flexible coupling component and the adjustment controller.

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