CN116698886A - High-voltage cable X-ray stepping detection device and image three-dimensional reconstruction system - Google Patents
High-voltage cable X-ray stepping detection device and image three-dimensional reconstruction system Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/03—Investigating materials by wave or particle radiation by transmission
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- G01N2223/1016—X-ray
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- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/30—Accessories, mechanical or electrical features
- G01N2223/308—Accessories, mechanical or electrical features support of radiation source
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- G01N2223/00—Investigating materials by wave or particle radiation
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- G01N2223/309—Accessories, mechanical or electrical features support of sample holder
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/401—Imaging image processing
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Abstract
The invention provides a high-voltage cable X-ray stepping detection device and an image three-dimensional reconstruction system, wherein the device comprises: the device comprises a frame assembly, a lifting assembly, a transmitting source, a receiving assembly, a rotating driving assembly, a controller and a workstation; the upper part of the lifting component is provided with a cable to be tested, and the lower part of the lifting component is connected to the frame component; the transmitting source and the receiving assembly are oppositely arranged at two sides of the cable to be tested, the rotating assembly is driven by the rotating driving assembly to rotate around the cable to be tested, and the distance between the transmitting source and the receiving assembly is adjustable; the receiving component receives the X-ray signals emitted by the emitting source and transmits the X-ray signals to the controller, and the workstation converts the received signals into images. The device of the invention can be used for internal quality inspection of cables and is presented as a three-dimensional reconstructed image.
Description
Technical Field
The invention relates to the technical field of nondestructive testing, in particular to a high-voltage cable X-ray stepping type detection device and an image three-dimensional reconstruction system.
Background
In recent years, with the rapid development of economy and society, a series of advantages of the crosslinked polyethylene high-voltage cable make the cable widely used. The high-voltage cable is used as a power transmission way for providing corresponding power for daily production and life, and the stability and safety state of the high-voltage cable are directly influenced by the quality of each subsequent activity. Therefore, quality detection of wires and cables is an important link in current power engineering. In the use process of the electric wire and cable, faults such as mechanical damage, insulation moisture, insulation aging, overvoltage and the like often occur, so that the safety of the electric wire and cable product must be detected. If the quality and performance of the electric wires and cables are not guaranteed, serious harm is caused to lives and properties of people. The comprehensive quality of the electric wires and the cables is checked in all directions, so that the safety of power transmission can be practically ensured.
In fact, after many cables are damaged by defects, defects of an inner buffer layer, mechanical damage deformation of an aluminum sheath, insulation eccentricity of a welding joint and the like are not easily detected, and how to quickly and accurately determine the positions of defect damage points and defect damage types becomes a problem to be solved in cable transportation and inspection. The existing X-ray detection method can perform imaging detection on the internal defects relatively intuitively. However, as the imaging result is a two-dimensional image, information such as specific lesion depth and spatial position cannot be determined. The existing technology for synthesizing three-dimensional images aiming at a plurality of ray images at different positions also has the defects that the focal length parameter is not constant, so that the size of a part in the image is distorted, and the imaging synthesis quantity is insufficient, so that the final three-dimensional synthesis is distorted. In addition, the existing device for directly generating the three-dimensional image of the cable by using only CT (three-dimensional) has high detection precision and accurate positioning, but is too expensive.
Therefore, in order to solve the above-mentioned shortcomings of the prior art, the present invention provides a high-voltage cable X-ray stepping detection device and an image three-dimensional reconstruction system that can form a three-dimensional imaging result by using a conventional two-dimensional detection system.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, and provides a high-voltage cable X-ray stepping detection device and an image three-dimensional reconstruction system, which are simple to detect and high in accuracy.
In order to solve the technical scheme, the invention adopts the following technical scheme:
a high voltage cable X-ray stepping detection device comprising:
the system comprises a frame assembly, a lifting assembly, a transmitting source, a receiving assembly, a rotating driving assembly, a controller and a workstation, wherein the lifting assembly, the transmitting source, the receiving assembly, the rotating assembly and the rotating driving assembly are arranged above the frame assembly;
the upper part of the lifting assembly is provided with a cable to be tested and can be used for adjusting the height of the cable to be tested, and the lower part of the lifting assembly is connected to the frame assembly;
the transmission source and the receiving assembly are oppositely arranged at two sides of the cable to be tested and are connected to the rotating assembly, the rotating assembly can rotate around the cable to be tested under the driving of the rotating driving assembly, and the distance between the transmission source and the receiving assembly can be adjusted;
one end of the controller is respectively and electrically connected with the lifting assembly, the emission source, the receiving assembly and the rotary driving assembly, and the other end of the controller is electrically connected with the workstation;
the receiving component receives the X-ray signals emitted by the emitting source and transmits the X-ray signals to the controller, and the workstation converts the received signals into images.
As a further improvement of the above technical scheme:
the rotating assembly comprises a circular ring, the transmitting source and the receiving assembly are symmetrically arranged along the central axis of the circular ring, and the central axis of the cable to be tested is coaxial with the central axis of the circular ring.
The rotating assembly further comprises a first mounting plate and a second mounting plate which are positioned on the circular ring, and the first mounting plate and the second mounting plate are respectively used for mounting the transmitting source and the receiving assembly.
The frame assembly comprises a bottom plate and a supporting plate vertically arranged on the bottom plate, the circular ring and the rotary driving assembly are arranged on the supporting plate, and the lifting assembly is arranged on the bottom plate.
The rotary driving assembly comprises an arc rack, an arc sliding rail, a sliding block, a rotary motor and a gear, wherein the arc rack is arranged on the supporting plate, the sliding block, the rotary motor and the gear are arranged on the rotary assembly, the rotary motor drives the gear to rotate, the gear is meshed with the arc rack, the sliding block is in sliding connection with the arc sliding rail, and the arc rack, the arc sliding rail and the central shaft of the circular ring are coaxial.
The frame assembly further comprises a plurality of casters and reinforcing ribs, wherein the casters are connected to the lower portion of the base plate, and the reinforcing ribs are connected to the upper portion of the base plate and used for fastening the support plate and the base plate.
The lifting assembly comprises a lifting motor, a lifter, a lifting screw rod and a fixing plate; the fixed plate is connected to the upper part of the lifting screw rod and used for placing the cable to be tested, and the lifting motor drives the lifting screw rod to move up and down by the lifting machine, so that the cable to be tested placed on the fixed plate moves along the vertical direction.
The receiving assembly comprises a receiving plate, a mounting box, a focusing motor and a focusing screw rod; the receiving plate is installed on the mounting box and is arranged close to one side of the emission source, one end of the focusing lead screw is connected with the mounting box, the other end of the focusing lead screw is connected with the rotating assembly, and the focusing motor drives the focusing lead screw to change the distance between the receiving plate and the emission source.
The receiving assembly further comprises a guide rod, one end of the guide rod is connected with the mounting box, the other end of the guide rod is connected with the rotating assembly, and the rotating assembly can slide relative to the guide rod.
The invention also provides a high-voltage cable image three-dimensional reconstruction method for the high-voltage cable X-ray stepping detection device, which comprises the following steps:
s1, placing a cable to be tested and enabling the cable to be tested to be coaxial with the rotation center of the rotating assembly;
s2, adjusting the distance between the receiving component and the transmitting source until the detection picture of the workstation is clear;
s3, determining that the detection mode of the workstation is a CT mode or a DR mode, executing step S4 if the detection mode is the CT mode, and executing step S5 if the detection mode is the DR mode;
s4, the controller controls the rotary driving assembly to rotate step by step to drive the rotary assembly and start to collect images, the image collection is disconnected until the emission source rotates 180 degrees, the workstation performs inverse radon transformation on the collected images, a three-dimensional image of the cable to be detected is calculated and generated, and step S6 is executed;
s5, setting a preset angle of the emission source, controlling the rotation driving assembly to rotate by the controller until the emission source rotates to the preset angle, acquiring images, outputting acquired two-dimensional images by the workstation, and executing the step S6.
S6, ending.
Preferably, in the step S4 or the step S5, the single rotation angle of the rotation driving assembly is 1 °.
Compared with the prior art, the invention has the advantages that:
according to the invention, the cable to be detected is placed on the upper part of the lifting assembly, the height of the cable to be detected is adjusted through the lifting assembly, then the X-ray signal emitted by the emission source is received by the receiving assembly through the rotating assembly and rotated around the cable to be detected under the driving of the rotating driving assembly, and is transmitted to the controller, the emission source and the receiving assembly are both positioned on the rotating assembly, so that the distance between the emission source and the receiving assembly and the cable to be detected is constant, even if the emission source and the receiving assembly are positioned at different positions of the outer circumference of the cable to be detected, the focal length parameters of the radiographic imaging are stable, the size of the inside of the obtained image is real, when the diameters of the cables to be detected are different, the distance between the emission source and the receiving assembly is adjusted to obtain the clearest image, and the accurate image acquisition can be performed on the cable to be detected, thus the damage and the defect inside the cable to be detected and analyzed can be accurately detected, and the detection is simple, and the accuracy is high.
According to the three-dimensional reconstruction method for the high-voltage cable image, the image obtained by the receiving component through the emitter is continuously obtained through the stepping rotation of the rotating component, and finally, the 3D image of the cable is constructed through the workstation.
Drawings
Fig. 1 is a schematic diagram of a step-type detection device for high-voltage cable X-rays in an embodiment of the present invention.
Fig. 2 is a schematic diagram of another structure of a high-voltage cable X-ray stepping detection device according to an embodiment of the present invention.
Fig. 3 is a schematic view of the structure of the receiving assembly and the rotating frame in the embodiment of the present invention.
Fig. 4 is a schematic structural view of a rotary driving assembly according to an embodiment of the present invention.
Fig. 5 is a workflow diagram for three-dimensional reconstruction of images for a high voltage cable X-ray stepwise detection device in an embodiment of the present invention.
The attached drawings are used for identifying and describing:
100. a frame assembly; 110. casters; 120. a bottom plate; 130. reinforcing ribs; 140. a support plate; 200. a lifting assembly; 210. a lifting motor; 220. a lifter; 230. lifting the screw rod; 240. a fixing plate; 300. an emission source; 400. a cable to be tested; 500. a receiving assembly; 510. a receiving plate; 520. a mounting box; 530. a focusing motor; 540. focusing screw rod; 550. a guide rod; 600. a rotating assembly; 610. a circular ring; 620. a first mounting plate; 630. a reinforcing plate; 640. a second mounting plate; 700. a rotary drive assembly; 710. arc racks; 720. arc slide rail; 730. a slide block; 740. a rotating electric machine; 750. a gear; 800. a controller; 900. a workstation.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the invention. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
In the description of the present invention, it should be understood that the azimuth or positional relationship indicated by the terms "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
As shown in fig. 1 and 2, one embodiment of the present invention provides a cable X-ray stepping detection device, including:
a gantry assembly 100, a lift assembly 200, a transmitting source 300, a receiving assembly 500, a rotating assembly 600, a rotating drive assembly 700, and a controller 800 and a workstation 900 positioned above the gantry assembly 100;
the upper part of the lifting assembly 200 is provided with a cable 400 to be tested and can be used for adjusting the height of the cable 400 to be tested, and the lower part of the lifting assembly 200 is connected to the frame assembly 100;
the transmitting source 300 and the receiving assembly 500 are oppositely arranged at two sides of the cable 400 to be tested and are connected to the rotating assembly 600, the rotating assembly 600 can rotate around the cable 400 to be tested under the driving of the rotating driving assembly 700, and the distance between the transmitting source 300 and the receiving assembly 500 can be adjusted;
one end of the controller 800 is electrically connected with the lifting assembly 200, the emission source 300, the receiving assembly 500 and the rotation driving assembly 700, respectively, and the other end is electrically connected with the workstation 900;
the receiving assembly 500 receives the X-ray signals emitted from the emission source 300 and transmits them to the controller 800, and the workstation 900 converts the received signals into images.
It can be understood that the lifting assembly 200 of the present invention has the cable 400 to be tested placed on the upper portion thereof, the lifting assembly 200 adjusts the height of the cable 400 to be tested, the rotating assembly 600 is driven by the rotary driving assembly 700 to rotate around the cable 400 to be tested, the receiving assembly 500 receives the X-ray signal emitted by the emitting source 300 and transmits the X-ray signal to the controller 800, the emitting source 300 and the receiving assembly 500 are both positioned on the rotating assembly 600, so that the distances between the emitting source 300 and the receiving assembly 500 and the cable 400 to be tested are constant, even if the focal parameters of the radiation imaging are stable at different positions of the emitting source 300 and the receiving assembly 500 on the outer circumference of the cable 400 to be tested, the size of the interior of the obtained image is real, and when the diameters of the cable 400 to be tested are different, the distances between the emitting source 300 and the receiving assembly 500 are adjusted to obtain the sharpest image, so that the accurate image acquisition can be performed on the cable 400 to be tested, thereby accurately detect and analyze the damage and defect inside the cable 400 to be tested, the detection is simple, and the accuracy is high.
As shown in fig. 3, in the present embodiment, the rotating assembly 600 includes a circular ring 610, and the transmitting source 300 and the receiving assembly 500 are symmetrically disposed along the central axis of the circular ring 610, and the central axis of the cable 400 to be measured is coaxial with the central axis of the circular ring 610.
The rotating assembly 600 further includes a first mounting plate 620 and a second mounting plate 640 on the circular ring 610, the first mounting plate 620 and the second mounting plate 640 for mounting the emitter source 300 and the receiver assembly 500, respectively.
In this embodiment, the rotating assembly 600 further includes a reinforcing plate 630, and the ring 610 is formed of two annular plates disposed in parallel, and the reinforcing plate 630, the first mounting plate 620, and the second mounting plate 640 are connected between the annular plates.
With continued reference to fig. 1 and 2, the frame assembly 100 includes a base plate 120 and a support plate 140 vertically disposed on the base plate 120, a circular ring 610, a rotation driving assembly 700 are mounted on the support plate 140, and the lifting assembly 200 is mounted on the base plate 120.
In this embodiment, the supporting plate 140 is composed of two parallel side plates, and two annular plates are respectively disposed on the two side plates.
As shown in fig. 4, the rotary driving assembly 700 includes an arc rack 710, an arc slide rail 720, a slider 730, a rotary motor 740 and a gear 750, the arc rack 710 and the arc slide rail 720 are mounted on the support plate 140, the slider 730, the rotary motor 740 and the gear 750 are disposed on the rotary assembly 600, the rotary motor 740 drives the gear 750 to rotate, the gear 750 is engaged with the arc rack 710, the slider 730 is slidably connected with the arc slide rail 720, and the arc rack 710, the arc slide rail 720 and the central axis of the circular ring 610 are coaxial.
The circular arc rack 710 is located at the outer circumference of the circular arc slide rail 720, and the slider 730 and the circular arc slide rail 720 play a guiding role to ensure that the circular arc rack 710 is meshed with the gear 750.
In other embodiments, the outer circumferential wall of the circular ring 610 is toothed, the rotary driving assembly 700 includes a gear 750 and a rotary motor 740 disposed on the support plate 140, and the teeth of the outer circumferential wall of the circular ring 610 are meshed with the gear 750, so that the same or similar technical effects can be achieved.
With continued reference to fig. 1 and 2, the frame assembly 100 further includes a plurality of casters 110 and a reinforcing bar 130, the casters 110 are coupled to the lower portion of the base plate 120, and the reinforcing bar 130 is coupled to the upper portion of the base plate 120 and is used to fasten the support plate 140 and the base plate 120.
It will be appreciated that the casters 110 are used to move and support the base plate 120, the base plate 120 is used as a datum for a reference plane, and the stiffener 130 and support plate 140 are used for two-sided support.
The lifting assembly 200 includes a lifting motor 210, a lifter 220, a lifting screw 230, and a fixing plate 240; the fixing plate 240 is connected to the upper portion of the lifting screw 230 and is used for placing the cable 400 to be tested, and the lifting motor 210 drives the lifting screw 230 to move up and down by driving the lifting motor 220, so that the cable 400 to be tested placed on the fixing plate 240 moves along the vertical direction.
In this embodiment, the lifting height of the lifting assembly 200 is calculated by the workstation 900 according to the diameter of the cable 400 to be tested, so as to control the cable 400 to be tested to be located at the rotation axis of the rotating assembly 600. In this embodiment, the rotating assembly 600 is a rotating frame.
It can be appreciated that, when the cable 400 to be tested is located at the rotation axis of the rotation assembly 600, the focal length parameter of the X-ray image emitted by the emission source 300 is constant during image acquisition, so that the distance dimension of each acquired image is kept consistent, and the subsequent processing and the synthesis of the 3D image are facilitated.
As shown in fig. 3, the receiving assembly 500 includes a receiving plate 510, a mounting box 520, a focusing motor 530, and a focusing screw 540; the receiving plate 510 is installed on the installation box 520 and is disposed near one side of the emission source 300, one end of the focusing screw rod 540 is connected with the installation box 520, the other end is connected with the rotating assembly 600, and the focusing motor 530 drives the focusing screw rod 540 to change the distance between the receiving plate 510 and the emission source 300.
The receiving assembly 500 further includes a guide rod 550, one end of the guide rod 550 being connected to the mounting case 520, and the other end being connected to the rotating assembly 600, the rotating assembly 600 being slidable with respect to the guide rod 550.
The guide bar 550 is coupled to a second mounting plate 640, and the second mounting plate 640 is slidable relative to the guide bar 550. In this embodiment, the guide rods 550 are located at two sides of the focusing screw 540 and are disposed parallel to the focusing screw 540.
In this embodiment, the receiving assembly 500 includes a further imaging plate for receiving X-ray signals.
In this embodiment, one end of the controller 800 is connected to the lifting motor 210, the focusing motor 530, the transmitting source 300, the receiving board 510 and the rotating motor 740 through the hub box on the rack assembly 100, and performs analog-to-digital conversion of signals; the other end of the controller 800 is connected to a workstation 900, and the workstation 900 is used for receiving and sending out digital signals and processing detected images.
As shown in fig. 5, the present invention further provides a three-dimensional reconstruction method for a high-voltage cable image, which includes the following steps:
s1, placing a cable 400 to be tested and enabling the cable 400 to be tested to be coaxial with the rotation center of the rotating assembly 600; in this embodiment, the lifting motor 210 is turned on and off until the cable 400 to be tested and the rotation center of the rotation assembly 600 are coaxial;
s2, adjusting the interval between the receiving component 500 and the transmitting source 300 until the detection picture of the workstation 900 is clear; in this embodiment, the distance between the transmitting source 300 and the receiving assembly 500 is adjusted by starting and closing the focusing motor 530 to obtain the clearest image, so that the cable 400 to be tested can be accurately collected;
s3, determining that the detection mode of the workstation 900 is a CT (three-dimensional) mode or a DR (two-dimensional) mode, if the detection mode is the CT mode, executing the step S4, and if the detection mode is the DR mode, executing the step S5;
s4, the controller 800 controls the rotary driving assembly 700 to rotate step by step to drive the rotary assembly 600 and start to collect images, the image collection is disconnected until the emission source 300 rotates 180 degrees, the workstation 900 performs inverse radon transformation on the collected images, three-dimensional images of the cable 400 to be detected are calculated and generated, and step S6 is executed;
s5, setting a preset angle of the emission source 300, controlling the rotation driving assembly 700 to rotate by the controller 800 until the emission source 300 rotates to the preset angle for image acquisition, outputting an acquired two-dimensional image by the workstation 900, and executing step S6. In this embodiment, the preset angle refers to a rotation angle of the emission source 300 determined according to an actual situation. And when the two-dimensional image with the preset angle is acquired, judging whether to continue acquisition, if so, executing the step S5, otherwise, executing the step S6.
S6, ending. After acquisition is completed, the source 300 returns to the initial position.
In this embodiment, in the CT mode, the workstation 900 drives the emission source 300 to rotate 180 ° to detect the cable 400 to be detected in steps of every 1 ° to calculate and generate a three-dimensional image of the cable 400 to be detected.
It can be appreciated that by detecting the cable 400 to be measured in steps of every 1 ° and continuously collecting 180 ° of the image collecting operation, it is ensured that the number of the collected images of the cable 400 to be measured is sufficient, thereby enabling the workstation 900 to synthesize an accurate three-dimensional image of the cable 400 to be measured.
It can be understood that, by the step rotation of the rotating assembly 600, the image obtained by the receiving assembly 500 through the transmitting source 300 is continuously obtained, and finally, the 3D image of the cable 400 to be measured is constructed through the workstation 900, on one hand, by the fact that the radiation detection parameters at all different positions in the outer circumferential direction of the cable 400 to be measured are constant in the image acquisition process, on the other hand, by rotating 180 ° for continuous detection, it is ensured that the image information is not lost, and even in the DR detection mode, the accuracy of the CT detection mode can be achieved, and the cost is saved.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A high voltage cable X-ray stepping detection device, comprising: a gantry assembly (100), a lift assembly (200), a transmit source (300), a receive assembly (500), a rotate assembly (600), a rotate drive assembly (700), and a controller (800) and workstation (900) located above the gantry assembly (100);
the upper part of the lifting assembly (200) is provided with a cable (400) to be tested and can be used for adjusting the height of the cable (400) to be tested, and the lower part of the lifting assembly (200) is connected to the frame assembly (100);
the transmission source (300) and the receiving assembly (500) are oppositely arranged at two sides of the cable (400) to be tested and are connected to the rotating assembly (600), the rotating assembly (600) can rotate around the cable (400) to be tested under the driving of the rotating driving assembly (700), and the distance between the transmission source (300) and the receiving assembly (500) can be adjusted;
one end of the controller (800) is respectively electrically connected with the lifting assembly (200), the emission source (300), the receiving assembly (500) and the rotary driving assembly (700), and the other end of the controller is electrically connected with the workstation (900);
the receiving component (500) receives the X-ray signals emitted by the emitting source (300) and transmits the X-ray signals to the controller (800), and the workstation (900) converts the received signals into images.
2. The high voltage cable X-ray stepwise detection device according to claim 1, wherein: the rotating assembly (600) comprises a circular ring (610), the transmitting source (300) and the receiving assembly (500) are symmetrically arranged along the central axis of the circular ring (610), and the central axis of the cable (400) to be tested is coaxial with the central axis of the circular ring (610).
3. The high voltage cable X-ray stepwise detection device according to claim 2, wherein: the rotating assembly (600) further includes a first mounting plate (620) and a second mounting plate (640) located on the circular ring (610), the first mounting plate (620) and the second mounting plate (640) being used to mount the emitter source (300) and the receiver assembly (500), respectively.
4. The high voltage cable X-ray stepwise detection device according to claim 2, wherein: the frame assembly (100) comprises a bottom plate (120) and a supporting plate (140) vertically arranged on the bottom plate (120), the circular ring (610) and the rotary driving assembly (700) are arranged on the supporting plate (140), and the lifting assembly (200) is arranged on the bottom plate (120).
5. The high voltage cable X-ray stepwise detection device according to claim 2, wherein: the rotary driving assembly (700) comprises an arc rack (710), an arc sliding rail (720), a sliding block (730), a rotary motor (740) and a gear (750), wherein the arc rack (710) is installed on a supporting plate (140), the sliding block (730), the rotary motor (740) and the gear (750) are arranged on the rotary assembly (600), the rotary motor (740) drives the gear (750) to rotate, the gear (750) is meshed with the arc rack (710), the sliding block (730) is in sliding connection with the arc sliding rail (720), and the arc rack (710), the arc sliding rail (720) and the central shaft of the circular ring (610) are coaxial.
6. A high voltage cable X-ray stepping detection device according to claim 3, wherein: the frame assembly (100) further comprises a plurality of casters (110) and reinforcing ribs (130), wherein the casters (110) are connected to the lower portion of the base plate (120), and the reinforcing ribs (130) are connected to the upper portion of the base plate (120) and used for fastening the supporting plate (140) and the base plate (120).
7. The high voltage cable X-ray stepwise detection device according to claim 1, wherein: the lifting assembly (200) comprises a lifting motor (210), a lifter (220), a lifting screw (230) and a fixing plate (240); the fixed plate (240) is connected to the upper portion of the lifting screw rod (230) and used for placing the cable (400) to be tested, the lifting motor (210) drives the lifting screw rod (230) to move up and down by driving the lifting motor (220), and the cable (400) to be tested placed on the fixed plate (240) moves along the vertical direction.
8. The high voltage cable X-ray stepwise detection device according to claim 1, wherein: the receiving assembly (500) comprises a receiving plate (510), a mounting box (520), a focusing motor (530) and a focusing screw rod (540); the receiving plate (510) is installed on the mounting box (520) and is arranged close to one side of the emission source (300), one end of the focusing screw rod (540) is connected with the mounting box (520), the other end of the focusing screw rod is connected with the rotating assembly (600), and the focusing motor (530) drives the focusing screw rod (540) to change the distance between the receiving plate (510) and the emission source (300).
9. The high voltage cable X-ray stepwise detection device of claim 7, wherein: the receiving assembly (500) further comprises a guide rod (550), one end of the guide rod (550) is connected with the mounting box (520), the other end of the guide rod is connected with the rotating assembly (600), and the rotating assembly (600) can slide relative to the guide rod (550).
10. The three-dimensional reconstruction method for the high-voltage cable image is characterized by comprising the following steps of:
s1, placing a cable (400) to be tested and enabling the cable (400) to be tested to be coaxial with the rotation center of a rotating assembly (600);
s2, adjusting the interval between the receiving component (500) and the transmitting source (300) until the detection picture of the workstation (900) is clear;
s3, determining that the detection mode of the workstation (900) is a CT mode or a DR mode, executing step S4 if the detection mode is the CT mode, and executing step S5 if the detection mode is the DR mode;
s4, the controller (800) controls the rotary driving assembly (700) to rotate step by step to drive the rotary assembly (600) and start to collect images, the image collection is disconnected until the emission source (300) rotates 180 degrees, the workstation (900) performs inverse winter drawing on the collected images, a three-dimensional image of the cable (400) to be detected is generated through calculation, and step S6 is executed;
s5, setting a preset angle of the emission source (300), controlling the rotation driving assembly (700) to rotate by the controller (800) until the emission source (300) rotates to the preset angle, acquiring an image, outputting an acquired two-dimensional image by the workstation (900), and executing the step S6;
s6, ending.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310676779.8A CN116698886A (en) | 2023-06-08 | 2023-06-08 | High-voltage cable X-ray stepping detection device and image three-dimensional reconstruction system |
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| CN202310676779.8A CN116698886A (en) | 2023-06-08 | 2023-06-08 | High-voltage cable X-ray stepping detection device and image three-dimensional reconstruction system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117538350A (en) * | 2023-10-26 | 2024-02-09 | 深圳市日联科技有限公司 | Cable X-ray three-dimensional detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117538350A (en) * | 2023-10-26 | 2024-02-09 | 深圳市日联科技有限公司 | Cable X-ray three-dimensional detection device |
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