High-speed train high-voltage insulation part CT in-situ detection device

Abstract

The utility model relates to a high-speed train high-voltage insulation part CT in-situ detection device, and belongs to the field of high-voltage insulation part CT detection. The device comprises a translation type portal frame, a scanning device, a translation transmission device, a radiation protection structure, a radiation source and a detector, the translation type portal frame comprises a portal frame bracket, a metal sliding device, a radiation source, a detector, an integrated power supply device and a protective shell; the multi-axis motion coupling portal frame bracket structure comprises a portal type metal frame, a cylindrical sleeve, a limiting groove, a connector and a motion bearing; a cylindrical sleeve is arranged on the gantry type metal frame, motor grooves are formed in the sleeve, servo motors for controlling the U-shaped arm to ascend, descend and rotate are installed in the motor grooves in the upper portion and the lower portion in the sleeve respectively, and a limiting groove is formed in the connecting position of the U-shaped arm and the sleeve. The CT in-situ detection device is adopted, and the to-be-detected insulating part is directly scanned and detected without being disassembled by moving the position of the detection device.

Description

Technical Field

[0001] The invention belongs to the field of CT detection of high-voltage insulation components, and relates to a CT in-situ detection device for high-voltage insulation components of high-speed trains. Background Art

[0002] High-voltage insulation components of high-speed trains are prone to damage during train operation, posing potential safety hazards. Conventional detection methods for high-voltage insulation components can only detect surface defects and some internal defects, and cannot achieve intuitive display and accurate identification of defects. Conventional detection methods are restricted by environmental conditions and can display and locate internal defects. However, due to many conditional limitations in the maintenance process, internal defects inside the umbrella skirt cannot be displayed and accurately located, and the in-situ detection requirements of insulation components cannot be met. Therefore, without disassembling the insulation components, obtaining high-resolution three-dimensional images of their internal structures, realizing rapid in-situ detection of high-voltage insulation components and quality assessment, etc. are problems to be solved. Therefore, there is an urgent need in the market for a non-disassembling CT in-situ detection method and device for high-voltage insulation components of high-speed trains. Using a dedicated detection device to quickly and accurately locate areas that may have problems, and combining with a CT in-situ detection device for targeted CT scanning and internal structure reconstruction is of great significance for early prevention of internal damage faults of insulation components and prevention of major traffic accidents. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a CT in-situ detection device for high-voltage insulation components of high-speed trains.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A CT in-situ detection device for high-voltage insulation components of high-speed trains, the device includes: a translational gantry, including a gantry support, a metal sliding device, a radiation source, a detector, an integrated power supply device, and a protective shell;

[0006] The gantry support is installed on two long slide rails;

[0007] The metal sliding device is installed at the upper crossbar of the gantry support through a slideway, and the slideway is located on both sides or above the crossbar;

[0008] The radiation source and the detector are respectively placed on both sides of the scanning device;

[0009] The line of the integrated power supply device is located inside the cylindrical sleeve;

[0010] The protective shell is wrapped outside the U-shaped arm.

[0011] Further, the gantry support includes a gantry-shaped metal frame, a cylindrical sleeve, a limit groove, a connection head, and a motion bearing;

[0012] A cylindrical sleeve is provided on the gantry - type metal frame, and motor slots are arranged inside the sleeve. The servo motors for controlling the lifting and rotation of the U - shaped arm are respectively installed in the upper and lower motor slots inside the sleeve.

[0013] A limit slot is arranged at the connection between the U - shaped arm and the sleeve.

[0014] Furthermore, a wire routing slot and motor slots are arranged inside the cylindrical sleeve.

[0015] Servo motors are arranged inside the motor slots, and the output ends of the servo motors extend into the motor slots.

[0016] A servo - motor controller is arranged outside the cylindrical sleeve.

[0017] A displacement sensor is installed inside the motor slot.

[0018] Furthermore, the metal rotating shaft is connected to the cylindrical sleeve through a translation transmission device.

[0019] The translation transmission device includes a motor driving device and a mechanical control device.

[0020] The motor driving device is arranged on the translational gantry.

[0021] The mechanical control device includes a translation device arranged between the gantry support and the cylindrical sleeve and a lifting - translation transmission device arranged between the cylindrical sleeve and the scanning structure.

[0022] Furthermore, the sliding structure of the translational gantry includes a slide rail, a fixed wheel, a limit slot, and a limit mechanism.

[0023] There are two slide rails, and limit slots are arranged at the front and rear ends of each slide rail.

[0024] The fixed wheel is located at the bottom of the translational gantry, and the fixed wheel is fixedly connected to the translational gantry through screws.

[0025] The fixed wheel is placed inside the slideway.

[0026] Furthermore, the radiation protection structure includes a protective shell and a lead - plate blade structure.

[0027] The protective shell wraps the entire scanning structure, and a lead - plate blade structure is arranged at the bottom of the protective shell to realize rotational opening and closing.

[0028] The beneficial effects of the present invention are as follows:

[0029] 1. The present invention adopts a CT in - situ detection device. By moving the position of the detection device, the insulating components to be detected can be directly scanned and detected without disassembly.

[0030] 2. The present invention utilizes a gantry structure connected to a slide rail to achieve forward and backward movement of the detection position. By using a displacement sensor and a sliding lifting device, the position of the detection device can be controlled to quickly locate and accurately scan the insulating component to be detected.

[0031] 3. The present invention adopts a microfocus ray source and a detector structure, and a scanning method in which the detector and the ray source rotate simultaneously. The object to be detected in the middle does not need to rotate, which improves the detection convenience and detection efficiency.

[0032] Other advantages, objectives, and features of the present invention will, to some extent, be elaborated in the subsequent description. And to some extent, they will be obvious to those skilled in the art based on the study of the following text, or can be learned from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. Brief Description of the Drawings

[0033] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings, where:

[0034] Figure 1 is the front isometric view of the detection mechanism of the present disclosure example;

[0035] Figure 2 is the side view of the detection mechanism of the present disclosure example;

[0036] Figure 3 is the partial enlarged view of the present disclosure example;

[0037] Figure 4 is the top view of the detection mechanism of the present disclosure example;

[0038] Figure 5 is the front view of the detection mechanism of the present disclosure example when working;

[0039] Figure 6 is the front view of the detection mechanism of the present disclosure example when not working;

[0040] Figure 7 is the partial enlarged view of the protection structure device provided by the present disclosure example;

[0041] Figure 8 is the schematic diagram of the connection between a CT in-situ detection device and a computer device provided by the present disclosure example;

[0042] Reference numerals: 1 - Translational gantry; 2 - Scanning mechanism; 4 - Translational transmission device; 5 - Ray source; 6 - Detector. Detailed Description of the Embodiments

[0043] The following specific examples illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments only schematically illustrate the basic concept of the present invention. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0044] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams rather than physical diagrams, and should not be construed as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0045] In the drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to the present invention. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0046] Please refer to Figures 1 to 8 , the present invention provides the following technical solutions:

[0047] The CT in-situ detection device for high-speed train high-voltage insulation components provided by the present invention includes a translational gantry 1, a scanning mechanism 2, a translational transmission device 4, a radiation source 5, and a detector 6. The specific implementation manners of each part will be described in detail below.

[0048] Translational gantry:

[0049] The gantry support is installed on two long slide rails, providing a stable support and a moving foundation.

[0050] The metal sliding device is installed on the upper crossbar of the gantry support through a slideway, allowing it to move back and forth on the slide rails.

[0051] The radiation source 5 and the detector 6 are respectively placed on both sides of the scanning mechanism 2, facilitating CT scanning.

[0052] Scanning mechanism:

[0053] It includes a radiation source 5 and a detector 6. The radiation source 5 generates radiation, and the detector 6 receives the attenuation information of the radiation after penetrating the component to be detected.

[0054] The radiation source 5 and the detector 6 are located inside the protective shell. The protective shell completely encloses the radiation source and the detector. A push-pull opening is provided below the protective shell for easy operation and maintenance.

[0055] Translation drive device:

[0056] It includes a cylindrical sleeve and a sliding device. The cylindrical sleeve is fixed on the sliding device, and the sliding device can slide back and forth along the parallel rod of the translation gantry 1.

[0057] A servo motor, a wire groove, and a motor groove are provided inside the cylindrical sleeve. The output end of the servo motor extends into the motor groove. A servo motor controller is provided outside the cylindrical sleeve, and a displacement sensor is installed inside the motor groove for accurately controlling the translation position.

[0058] Radiation source and detector:

[0059] It is connected to a power supply and a data transmission module. The data obtained from the scan is transmitted to the computer in real time, and the internal structure diagram of the object is reconstructed after being processed by the computer.

[0060] Operation process:

[0061] According to the size and position of the high-voltage insulation component to be detected, move the translation gantry 1 to align its vertical position with the high-voltage insulation component to be measured.

[0062] Control the U-shaped arm connecting rod to move downward through the servo motor so that the high-voltage insulation component completely enters the U-shaped arm.

[0063] Use the displacement sensor to receive the position signal and judge the relative position between the high-voltage insulation component to be measured and the radiation source 5 and the detector.

[0064] Initialize each motion axis and set the radiation source to preheat to the specified voltage.

[0065] Close the protective door, turn on the radiation source, adjust the source-detector height to the appropriate position, and perform the scan.

[0066] After the scan is completed, readjust the scan parameters and rescan.

[0067] After three groups of data are collected, use the three-dimensional CT reconstruction software to reconstruct the scan data.

[0068] Specifically, this embodiment relates to the process of using the CT in-situ detection device for high-voltage insulation components of high-speed trains to detect the high-voltage insulation components of a running high-speed train.

[0069] Step 1: Equipment Installation and Preparation

[0070] First, place the translational gantry 1 on a stable platform beside the train to ensure that it can slide freely and has a stable structure. Subsequently, preheat the radiation source 5 and complete the sensitivity debugging of the detector 6. After checking, start the translation drive device 4 to ensure that the cylindrical sleeve and the U-shaped arm can accurately move to the specified position.

[0071] Step 2: Positioning and Preliminary Scanning

[0072] The operator adjusts the left-right position of the scanning mechanism 2 by controlling the slide rail on the translational gantry 1 according to the position of the high-voltage insulation component to be detected. Then, use the translation drive device 4 to finely adjust the height and angle of the U-shaped arm so that the radiation source 5 and the detector 6 are aligned with the starting point of scanning the high-voltage insulation component.

[0073] Step 3: Data Acquisition

[0074] Once the positioning of the radiation source 5 and the detector 6 is completed, the operator closes the protective door and starts emitting X-rays. The detector 6 collects the radiation data passing through the insulation component in real time and transmits the data to the analysis computer. At this time, the scanning mechanism 2 starts to scan along the predetermined path, and the displacement sensor monitors its position in real time to ensure data accuracy.

[0075] Step 4: Data Analysis and Reconstruction

[0076] The dedicated software on the computer receives the data from the detector 6 and processes these data using an image reconstruction algorithm, finally generating a three-dimensional image of the insulation component. The image can clearly show any abnormalities or defects inside the insulation component.

[0077] Step 5: Result Evaluation and Report

[0078] Technicians analyze the reconstructed three-dimensional image, evaluate the condition of the high-voltage insulation component, and compile the results into a detailed inspection report. If any potential problems or signs of damage are found, further inspections or repair work will be recommended.

[0079] From the description of the above embodiments, it can be seen that the CT in-situ detection device for high-voltage insulation components of high-speed trains according to the present invention can effectively perform rapid and accurate internal detection on the high-voltage insulation components of high-speed trains without disassembling the components, thus greatly improving the maintenance efficiency and safety.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the present technical solution, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A CT in-situ detection device for high-voltage insulation components of high-speed trains, characterized in that: The device comprises: a translational gantry, including a gantry bracket, a metal sliding device, a ray source, a detector, an integrated power supply device and a protective shell; The gantry bracket is installed on two long slide rails; The metal sliding device is installed on the crossbar above the gantry bracket through a slideway, and the slideway is located on both sides or above the crossbar; The ray source and the detector are respectively placed on two sides of the scanning device; The integrated power supply device circuit is located in the cylindrical sleeve; The protective shell is wrapped around the outside of the U-shaped arm; The metal rotating shaft is connected to the cylindrical sleeve via a translation transmission device.

2. The high-speed train high-voltage insulation component CT in-situ detection device according to claim 1 is characterized in that: The gantry bracket comprises a gantry-type metal frame, a cylindrical sleeve, a limit groove, a connector and a motion bearing; The gantry-shaped metal frame is provided with a cylindrical sleeve, a motor slot is provided in the sleeve, and the servo motors for controlling the lifting and rotation of the U-shaped arm are respectively installed in the motor slots at the top and bottom of the sleeve; A limiting groove is arranged at the connection between the U-shaped arm and the sleeve.

3. The high-speed train high-voltage insulation component CT in-situ detection device according to claim 1 is characterized in that: The cylindrical sleeve is provided with a wiring groove and a motor groove inside; A servo motor is arranged inside the motor slot, and an output end of the servo motor extends into the motor slot; A servo motor controller is arranged on the outside of the cylindrical sleeve; A displacement sensor is installed inside the motor slot.

4. The high-speed train high-voltage insulation component CT in-situ detection device according to claim 1 is characterized in that: The translation transmission device includes a motor drive device and a mechanical control device; The motor drive device is arranged on the translational gantry; The mechanical control device comprises a translation device arranged between the gantry support and the cylindrical sleeve and a lifting and translation transmission device arranged between the cylindrical sleeve and the scanning structure.

5. The high-speed train high-voltage insulation component CT in-situ detection device according to claim 1 is characterized in that: The translational gantry sliding structure comprises a slide rail, a fixed wheel, a limit groove and a limit mechanism; There are two slide rails, and each slide rail has limit grooves at both ends. The fixed wheel is located at the bottom of the translational gantry, and the fixed wheel is fixedly connected to the translational gantry by screws; The fixed wheel is placed inside the slideway.

6. The high-speed train high-voltage insulation component CT in-situ detection device according to claim 1 is characterized by: The protective shell comprises a protective shell and a lead plate blade structure; The protective shell wraps the entire scanning structure, and a lead plate blade structure is arranged at the bottom of the protective shell to realize rotation opening and closing.

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