A power cable non-destructive testing device

Abstract

The present application relates to a kind of power cable nondestructive testing device, it relates to the technical field of power cable detection, it includes base, the top of the base is provided with a retractable assembly;The top of the base is provided with tensioning assembly;The top of the base is provided with dust removal assembly;The top of the base is provided with centering assembly;The top of the base is provided with detection assembly;The top of the base is provided with linkage assembly;The retractable assembly includes first support frame, the bottom of the first support frame is fixedly connected with the top of base, and the first support frame is detachably connected with cable drum by pneumatic gripper.The present application has the effect that by setting dust removal assembly, effectively remove talc powder, dust and oil stains and other impurities attached to the surface of power cable before detection, avoid the impurities form isolation layer between detection assembly and cable surface, ensure that detection contact is reliable, signal is stable and real, effectively reduce the effect of false detection, missed detection rate.

Description

Technical Field

[0001] This invention relates to the field of power cable testing technology, and in particular to a non-destructive testing device for power cables. Background Technology

[0002] Against the backdrop of accelerated construction of new power systems, power cables, as the core carrier of urban power grids, are directly related to the reliability of power supply and the overall safety of the power system, and are one of the key infrastructures to ensure efficient and stable power transmission. Before production, transportation, storage, and laying, power cables must undergo rigorous non-destructive testing to promptly identify problems such as damage to the cable's outer surface and defects in the insulation layer, preventing power outages, equipment damage, and even fires caused by hidden cable hazards. Therefore, non-destructive testing of power cables is one of the core links in the operation and maintenance and quality control of the power industry. During the production process, power cables are prone to adhering to impurities such as talcum powder, dust, and oil. Most existing testing devices lack dedicated dust removal mechanisms. These impurities form an isolation layer between the testing components and the cable surface, leading to poor contact between the testing unit and the cable surface. This results in distorted and unstable testing signals, making it easy to produce false or missed detections. It also makes it impossible to accurately identify minute defects on the cable surface, posing a hidden danger to the safe operation of the power system. At the same time, power cables have diverse specifications and large diameter differences. The centering mechanism of existing testing devices is poorly designed, making it difficult to achieve accurate centering of cables of different diameters. During the transportation and testing process, cables are prone to lateral deviation, radial sway, and vertical jump, resulting in uneven contact between the testing unit and the cable surface and blind spots in the testing coverage. This not only affects the testing accuracy but may also cause secondary damage to the cable due to cable deviation and scraping against device components, further reducing the reliability of the testing. Summary of the Invention

[0003] The purpose of this invention is to provide a non-destructive testing device for power cables to solve the problem of talcum powder adhering to the cable surface affecting the inspection effect.

[0004] Firstly, the non-destructive testing device for power cables provided by the present invention adopts the following technical solution: Includes a base, the top of which is provided with a retractable assembly; the top of which is provided with a tensioning assembly; and the top of which is provided with a dust removal assembly. A centering component is provided on the top of the base; a detection component is provided on the top of the base; and a linkage component is provided on the top of the base. The take-up and take-down assembly includes a first support frame, the bottom of which is fixedly connected to the top of the base, and a cable drum detachably connected to the first support frame via pneumatic grippers. A second support frame is fixedly connected to the top of the base, and a take-up drum is detachably connected to the second support frame via pneumatic grippers. The dust removal assembly includes a motor, the bottom of which is detachably connected to the top of the base. A temporary storage box is fixedly connected to the top of the base, and a collection pipe is fixedly connected to the bottom of the temporary storage box. A fan blade is rotatably connected to the end of the collection pipe near the motor via a bearing. The output end of the motor is fixedly connected to the fan blade via a coupling. A filter plate is detachably connected inside the collection pipe. A collection box is movably connected to the top of the base, and the top of the collection box is connected to the bottom of the collection pipe. A cleaning pipe is threadedly connected to one end of the temporary storage box.

[0005] Secondly, the non-destructive testing device for power cables provided by the present invention adopts the following technical solution: Preferably, a pull rod is fixedly connected to the side of the collection box away from the motor, and a handle is fixedly connected to the end of the pull rod away from the collection box.

[0006] By adopting the above technical solution and setting up pull rods and handles, the collection box can be easily disassembled, thereby facilitating the cleaning of talcum powder or impurities stored inside the collection box by staff.

[0007] Preferably, the tensioning assembly includes a third support frame, the bottom end of which is fixedly connected to the top of the base, a spring telescopic rod is detachably connected to the outer wall of the third support frame, the telescopic end of the spring telescopic rod is rotatably connected to a tensioning roller via a bearing, and a soft pad is fixedly connected to the outer wall of the tensioning roller.

[0008] By adopting the above technical solution and setting a tensioning component, the cable tension can be adjusted, which can keep the cable in a straight and stable transmission state, avoid slack and shaking, effectively reduce cable swing and deviation, reduce the difficulty of alignment, and prevent cable jamming and damage to detection accuracy.

[0009] Preferably, the centering component includes a first support plate, the bottom end of which is fixedly connected to the top of the base. An electric telescopic rod is detachably connected to the first support plate through a provided hole. A centering plate is fixedly connected to the telescopic end of the electric telescopic rod. The centering plate is configured in a funnel shape.

[0010] By adopting the above technical solution and setting a centering component, the cable can always be kept in the central axis position of the device during the transportation and testing process, effectively eliminating the cable's left and right deviation, radial swing and vertical jump, ensuring that the detection unit and the cable surface are evenly attached and the detection coverage is complete without blind spots. At the same time, the device can be adapted to cables of different diameters, and its versatility and reliability are significantly improved.

[0011] Preferably, the detection component includes a second support plate, the bottom end of which is fixedly connected to the top of the base. The second support plate is rotatably connected to a mounting frame through a hole. A first spur gear is rotatably connected to the inner wall of the mounting frame. A knob is fixedly connected to one end of the first spur gear outside the mounting frame. A gear ring is fixedly connected inside the mounting frame and meshes with the first spur gear. A rack is slidably connected to the mounting frame. A movable frame is fixedly connected to one end of the rack outside the mounting frame. A first spring is fixedly connected to the inner wall of the movable frame. A detector is fixedly connected to the movable end of the first spring, and the detector is slidably connected to the movable frame.

[0012] By adopting the above technical solution and setting up detection components, cables of different thicknesses can be inspected, thereby ensuring that the detection unit always maintains stable and reliable contact with the cable surface, effectively adapting to power cables of different specifications and thicknesses, and expanding the applicability of the device; at the same time, it ensures that the detection pressure is moderate, does not damage the sheath of new cables, eliminates detection gaps and signal jitter, improves detection stability, consistency and defect detection rate, and significantly enhances the versatility and practicality of the device.

[0013] Preferably, a second spring is fixedly connected inside the mounting frame, a connecting plate is slidably connected to the mounting frame, one side of the connecting plate is fixedly connected to the movable end of the second spring, a second locking plate is fixedly connected to the connecting plate, and a first locking plate is fixedly connected to the knob. The first locking plate and the second locking plate are engaged by locking teeth.

[0014] By adopting the above technical solution, and by setting a second spring, a connecting plate, a first locking plate, and a second locking plate, the position of the detector can be locked after the detector is adjusted, thereby preventing the detector from shaking when detecting the cable.

[0015] Preferably, a first bevel gear is provided on the top of the base, a second bevel gear is rotatably connected to the top of the base via a bearing, a third bevel gear is fixedly connected to the second bevel gear via a round rod, a second flat gear is fixedly connected to the end of the third bevel gear away from the second bevel gear, a third flat gear is fixedly connected to the outer wall of the mounting frame, and the third flat gear and the second flat gear are connected by tooth meshing.

[0016] By adopting the above technical solution, and by setting the first bevel gear, the second bevel gear, the third bevel gear, the second flat gear, and the third flat gear, the detector can rotate back and forth, thereby expanding single-point detection into circumferential reciprocating scanning surface detection, realizing full coverage detection of the outer surface of the cable, effectively eliminating detection dead angles, and significantly improving the detection rate of minute defects.

[0017] Preferably, the linkage component includes a fourth spur gear, which is fixedly connected to the output end of the motor. A fixed frame is fixedly connected to the top of the base, and a fifth spur gear is rotatably connected to the inner wall of the fixed frame. The fifth spur gear and the fourth spur gear are connected by tooth meshing. A first transmission wheel is fixedly connected to the fifth spur gear, and a transmission belt is connected to the outside of the first transmission wheel. A third support plate is fixedly connected to the top of the base, and a round rod is rotatably connected to the third support plate through a bearing. A second transmission wheel is fixedly connected to the round rod on the third support plate, and the second transmission wheel is connected to the transmission belt. A third transmission wheel is provided on the second support frame, and the third transmission wheel is connected to the transmission belt.

[0018] By adopting the above technical solution and setting up linkage components, the cable conveying rate, the left-right reciprocating rotation of the detection component, and the cleaning and dust removal component are combined to ensure that the three actions maintain strict speed matching and timing coordination, thereby ensuring that the cable conveying speed, detection scanning speed, and cleaning speed are highly unified, thereby improving detection accuracy and stability.

[0019] In summary, the present invention has at least one of the following beneficial technical effects: 1. By setting up a dust removal component, impurities such as talcum powder, dust, and oil stains adhering to the surface of the power cable before use are effectively removed. This prevents impurities from forming an isolation layer between the detection component and the cable surface, ensuring reliable detection contact and stable and accurate signals, and effectively reducing the false detection and missed detection rates.

[0020] 2. By setting a centering component, the cable can always be kept in the central axis position of the device during the transportation and testing process, effectively eliminating the cable's left and right deviation, radial swing and vertical jump, ensuring that the detection unit and the cable surface are evenly attached and the detection coverage is complete without blind spots. At the same time, the device can be adapted to cables of different diameters, significantly improving its versatility and reliability.

[0021] 3. By setting up detection components, cables of different thicknesses can be inspected, ensuring that the detection unit maintains stable and reliable contact with the cable surface at all times. This effectively adapts to power cables of different thicknesses, expanding the applicability of the device. At the same time, through the coordinated use of the first bevel gear, second bevel gear, third bevel gear, second flat gear, and third flat gear, the detector can rotate back and forth, thereby expanding single-point detection to circumferential reciprocating scanning surface detection, achieving full coverage detection of the cable's outer surface, effectively eliminating detection blind spots, and significantly improving the detection rate of minute defects.

[0022] 4. By setting up linkage components, the cable conveying rate, the left and right reciprocating rotation of the detection component, and the cleaning and dust removal component are combined to ensure that the three actions maintain strict speed matching and timing coordination, thereby ensuring that the cable conveying speed, detection scanning speed, and cleaning speed are highly unified, thereby improving detection accuracy and stability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the tensioning component of the present invention; Figure 3 This is a schematic diagram of the overall structure of the dust removal component of the present invention; Figure 4 This is a cross-sectional structural schematic diagram of the dust removal component of the present invention; Figure 5 This is a schematic diagram of the overall structure of the centering component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the detection component of the present invention; Figure 7 This is a partial structural schematic diagram of the detection component of the present invention; Figure 8 This is a cross-sectional structural diagram of the detection component of the present invention; Figure 9 This is a schematic diagram of the back structure of the detection component of the present invention; Figure 10 This is a schematic diagram of the overall structure of the linkage component of the present invention; Explanation of reference numerals in the attached figures: 1. Base; 2. Rewinding assembly; 201. First support frame; 202. Cable drum; 203. Second support frame; 204. Rewind drum; 3. Tensioning assembly; 301. Third support frame; 302. Spring telescopic rod; 303. Tensioning roller; 4. Dust removal components; 401. Motor; 402. Temporary storage box; 403. Collection pipe; 404. Fan blades; 405. Filter plate; 406. Collection box; 407. Cleaning pipe; 408. Pull rod; 409. Handle; 5. Centering assembly; 501. First support plate; 502. Electric telescopic rod; 503. Centering plate; 6. Detection components; 601. Second support plate; 602. Mounting frame; 603. Movable frame; 604. First spring; 605. Detector; 606. First spur gear; 607. Knob; 608. Gear ring; 609. Rack; 610. Second spring; 611. Connecting plate; 612. First clamping plate; 613. Second clamping plate; 614. First bevel gear; 615. Second bevel gear; 616. Third bevel gear; 617. Second spur gear; 618. Third spur gear; 7. Linkage assembly; 701. Fourth spur gear; 702. Fixing frame; 703. Fifth spur gear; 704. First transmission wheel; 705. Transmission belt; 706. Third support plate; 707. Second transmission wheel; 708. Third transmission wheel. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 The present invention will be further described in detail below.

[0026] Example 1: A non-destructive testing device for power cables, referring to... Figure 1 - Figure 10 The system includes a base 1, with a cable winding / unwinding assembly 2 on top of the base 1. The cable winding / unwinding assembly 2 is used for winding and unwinding the cable. A tensioning assembly 3 is also located on top of the base 1, allowing adjustment of the cable tension. A dust removal assembly 4 is located on top of the base 1, cleaning the cable. A centering assembly 5 is located on top of the base 1, centering the cable. A detection assembly 6 is located on top of the base 1, inspecting the cable. A linkage assembly 7 is located on top of the base 1, connecting the cable winding / unwinding assembly. 2. The dust removal component 4 and the detection component 6 are linked together; the take-up and untake-down component 2 includes a first support frame 201, the bottom of the first support frame 201 is fixedly connected to the top of the base 1, the first support frame 201 is detachably connected to the cable drum 202 by a pneumatic gripper, the first support frame 201 can install the cable drum 202 by the pneumatic gripper, the top of the base 1 is fixedly connected to a second support frame 203, the second support frame 203 is detachably connected to the take-up drum 204 by a pneumatic gripper, the second support frame 203 can clamp the take-up drum 204 by the pneumatic gripper; The dust collection assembly 4 includes a motor 401, the bottom of which is detachably connected to the top of the base 1. A temporary storage box 402 is fixedly connected to the top of the base 1, which can collect dust. A collection pipe 403 is fixedly connected to the bottom of the temporary storage box 402. A perforated plate with ventilation is provided at the end of the collection pipe 403 near the motor 401, allowing the collection pipe 403 to transport the dust collected in the temporary storage box 402. A fan blade 404 is rotatably connected to the end of the collection pipe 403 near the motor 401 via a bearing. The output end of the motor 401 is fixedly connected to the fan blade 404 via a coupling, allowing the motor 401 to accelerate dust collection via the fan blade 404. The internal components of the collection pipe 403 are detachably connected. A filter plate 405 is provided to block dust and prevent it from affecting the fan blades 404. A collection box 406 is movably connected to the top of the base 1. The collection box 406 can temporarily store dust. The top of the collection box 406 is connected to the bottom of the collection pipe 403. A cleaning pipe 407 is threadedly connected to one end of the temporary storage box 402. The cleaning pipe 407 can scrape off the talcum powder on the surface of the cable. The dust is scraped off through the cleaning pipe 407 and enters the interior of the temporary storage box 402. It is then transferred to the interior of the collection pipe 403. At the same time, the motor 401 drives the fan blades 404 to rotate. The fan blades 404 can accelerate the flow of dust to prevent dust cross-contamination.

[0027] Reference Figure 4 A pull rod 408 is fixedly connected to the side of the collection box 406 away from the motor 401. A handle 409 is fixedly connected to the end of the pull rod 408 away from the collection box 406. The handle 409 allows the staff to easily pull the pull rod 408. After pulling the pull rod 408, the collection box 406 can be easily disassembled, so as to facilitate the staff to clean the talcum powder or impurities stored inside the collection box 406.

[0028] Reference Figure 1 and Figure 2 The tensioning assembly 3 includes a third support frame 301, the bottom end of which is fixedly connected to the top of the base 1. A spring telescopic rod 302 is detachably connected to the outer wall of the third support frame 301. The third support frame 301 is used to install the spring telescopic rod 302. The telescopic end of the spring telescopic rod 302 is rotatably connected to a tension roller 303 through a bearing. A soft pad is fixedly connected to the outer wall of the tension roller 303. The spring telescopic rod 302 can realize the sliding of the tension roller 303, and the tension roller 303 can be reset after sliding. At the same time, the tension roller 303 can adjust the tension of the cable to keep the cable in a straight and stable conveying state and avoid slack and shaking.

[0029] Reference Figure 1 and Figure 5The centering component 5 includes a first support plate 501, the bottom end of which is fixedly connected to the top of the base 1. The first support plate 501 is detachably connected to an electric telescopic rod 502 through a set hole. The first support plate 501 is used to install multiple electric telescopic rods 502. The telescopic end of the electric telescopic rod 502 is fixedly connected to a centering plate 503. The electric telescopic rod 502 can push the centering plate 503 to move. By moving the centering plate 503, cables of different sizes are centered so that the cables are in a straight state. The centering plate 503 is set in a funnel shape. The funnel-shaped centering plate 503 makes it convenient for workers to install the cables in the initial state. At the same time, the funnel-shaped centering plate 503 can also prevent the cable from being scratched at the damaged part when the cable is damaged, thereby avoiding greater damage.

[0030] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The detection component 6 includes a second support plate 601, the bottom end of which is fixedly connected to the top of the base 1. The base 1 supports the second support plate 601. A mounting frame 602 is rotatably connected to the second support plate 601 through a set hole. The second support plate 601 limits the installation of the mounting frame 602. A first spur gear 606 is rotatably connected to the inner wall of the mounting frame 602. A knob 607 is fixedly connected to one end of the first spur gear 606 outside the mounting frame 602. The knob 607 allows the user to easily turn the first spur gear 606. A gear ring 608 is fixedly connected inside the mounting frame 602. The first spur gear 606 can drive the gear ring 608 to rotate, thereby driving the other two first spur gears 606 to rotate. The gear ring 608 meshes with the first spur gears 606. A rack 609 is slidably connected to the mounting frame 602. The first spur gear 606 can drive the rack 609 to move. One end of the rack 609 located outside the mounting frame 602 is fixedly connected to a movable frame 603. The rack 609 will drive the movable frame 603 to move. The inner wall of the movable frame 603 is fixedly connected to a first spring 604. The movable end of the first spring 604 is fixedly connected to a detector 605. The first spring 604 can realize the flexible adjustment of the detector 605. The detector 605 is slidably connected to the movable frame 603. The user can drive the first spur gear 606 through the knob 607. The first spur gear 606 can make the rack 609 drive the movable frame 603 to move, so that the detection rod of the detector 605 is in contact with the cable surface. At the same time, the first spur gear 606 will drive the gear ring 608 to rotate. The rotation of the gear ring 608 will drive the other two first spur gears 606 to rotate, so as to achieve the effect of synchronously driving the rack 609.

[0031] Reference Figure 7 , Figure 8 andFigure 9 A second spring 610 is fixedly connected inside the mounting frame 602. A connecting plate 611 is slidably connected to the mounting frame 602. The second spring 610 can move the connecting plate 611 to return it to its original position. One side of the connecting plate 611 is fixedly connected to the movable end of the second spring 610. A second locking plate 613 is fixedly connected to the connecting plate 611. A first locking plate 612 is fixedly connected to the knob 607. The first locking plate 612 and the second locking plate 613 are engaged by locking teeth. The cooperation of the second locking plate 613 and the first locking plate 612 can lock the knob 607. By locking the knob 607, the first locking plate 612 can be fixed, thereby locking the position of the detector 605.

[0032] Reference Figure 8 and Figure 9 A first bevel gear 614 is provided on the top of the base 1. The first bevel gear 614 is a missing gear. A second bevel gear 615 is rotatably connected to the top of the base 1 via a bearing. A third bevel gear 616 is fixedly connected to the second bevel gear 615 via a round rod. A second flat gear 617 is fixedly connected to the end of the third bevel gear 616 away from the second bevel gear 615. The first bevel gear 614 meshes with the second bevel gear 615, which can drive the second flat gear 617 to rotate. The first bevel gear 614 meshes with the third bevel gear 616, which can drive the second flat gear 617 to rotate in the opposite direction. A third flat gear 618 is fixedly connected to the outer wall of the mounting frame 602. The third flat gear 618 is connected to the second flat gear 617 via tooth meshing. The second flat gear 617 can drive the third flat gear 618 to rotate cyclically by meshing with the third flat gear 618. In this way, the single-point detection can be expanded to circumferential reciprocating scanning surface detection, realizing full coverage detection of the outer surface of the cable, effectively eliminating detection dead angles, and significantly improving the detection rate of small defects.

[0033] Reference Figure 1 , Figure 3 , Figure 9 and Figure 10The linkage component 7 includes a fourth spur gear 701, which is fixedly connected to the output end of a motor 401. The motor 401 can drive the fourth spur gear 701 to rotate. A fixed frame 702 is fixedly connected to the top of the base 1. A fifth spur gear 703 is rotatably connected to the inner wall of the fixed frame 702. The fixed frame 702 is mounted on the fifth spur gear 703. The fourth spur gear 701 can drive the fifth spur gear 703 to rotate. The fifth spur gear 703 and the fourth spur gear 701 are connected by tooth meshing. A first transmission wheel 704 is fixedly connected to the fifth spur gear 703. The fifth spur gear 703 can drive the first transmission wheel 704 to rotate. A transmission belt 705 is externally connected to the first transmission wheel 704. The first transmission wheel 704 can drive the transmission belt 705 to drive the transmission. A third support plate 706 is fixedly connected to the top of the base 1. The third support plate 706 is rotatably connected to a round rod via bearings. A second transmission wheel 707 is fixedly connected to the round rod on the third support plate 706. The second transmission wheel 707 can be installed on the third support plate 706. The second transmission wheel 707 is connected to the transmission belt 705. A third transmission wheel 708 is provided on the second support frame 203. The third transmission wheel 708 is connected to the transmission belt 705. When the transmission belt 705 is driven by the first transmission wheel 704, it can drive the second transmission wheel 707 and the third transmission wheel 708 to rotate. The rotation of the second transmission wheel 707 can drive the first bevel gear 614 to rotate through the round rod. The rotation of the third transmission wheel 708 can drive the winding drum 204 to rotate. In this way, the cable conveying speed, the reciprocating rotation of the detection component 6 and the cleaning and dust removal component 4 are combined, so that the three actions maintain strict speed matching and timing coordination.

[0034] The implementation principle of this invention is as follows: Workers use pneumatic grippers on the first support frame 201 and the second support frame 203 to install and fix the cable drum 202 and the winding drum 204, ensuring that the cable in the cable drum 202 can be smoothly released and the winding drum 204 can be stably wound. Simultaneously, by pulling the handle 409 and using the pull rod 408, the collection box 406 is installed to the designated position on the base 1, ensuring that the collection pipe 403 is connected to the collection box 406. The filter plate 405 is checked to ensure it is properly installed, preventing dust from entering the fan blades 404 and causing equipment wear. Subsequently, the centering component 5 is operated, using multiple sets of electric telescopic rods 502 on the first support plate 501 to push... The funnel-shaped centering plate 503 is used to adjust the spacing of the centering plate 503 according to the size of the cable to be tested, which completes the preliminary debugging of cable centering and facilitates subsequent cable threading. Finally, the detection component 6 is adjusted, and the knob 607 is turned to drive the first flat gear 606 to rotate. The gear ring 608 drives the other first flat gears 606 to rotate synchronously, which in turn pushes the rack 609 to move the movable frame 603, so that the detection rod of the detector 605 is in contact with the preset detection position of the cable. At this time, the second spring 610 pushes the connecting plate 611 to make the first clamping plate 612 and the second clamping plate 613 engage, and the locking knob 607 is locked to fix the position of the detector 605, completing all the debugging preparations before the test. When the main switch of the start-up device is turned on, the motor 401 of the dust removal component 4 starts first. The output of the motor 401 simultaneously drives the two major components to operate. First, it drives the fan blades 404 in the collection pipe 403 to rotate at high speed through the coupling, forming a negative pressure airflow in the collection pipe 403 to prepare for subsequent dust removal. Second, it drives the fourth flat gear 701 of the linkage component 7 to rotate synchronously, realizing the power input of the linkage component 7 and starting the synchronous operation of the entire device. The fourth spur gear 701 meshes with the fifth spur gear 703 inside the fixed frame 702, driving the fifth spur gear 703 to rotate, which in turn drives the first transmission wheel 704 on it to rotate. The first transmission wheel 704 simultaneously drives the second transmission wheel 707 and the third transmission wheel 708 to rotate synchronously via the transmission belt 705. The third transmission wheel 708 drives the take-up drum 204 of the take-up and undo assembly 2 to rotate, and the take-up drum 204 generates traction force, pulling the cable in the cable drum 202 outward, and the cable officially enters the conveying process; at the same time, the second transmission wheel 707... The first bevel gear 614 of the detection component 6 is rotated by the round rod, which activates the synchronous detection action of the detection component 6. During the cable conveying process, the tensioning component 3 works synchronously. The spring telescopic rod 302 on the third support frame 301 dynamically extends and retracts according to the cable conveying tension, which drives the tensioning roller 303 to fit against the cable surface. With the soft pad on the outer wall of the tensioning roller 303, the cable tension is adjusted in real time to ensure that the cable always maintains a straight and stable conveying state, avoiding the impact of slack and shaking on centering, dust removal and detection accuracy, and realizing the synchronous adaptation of tensioning action and cable conveying. When the cable passes through the cleaning pipe 407 at the end of the temporary storage box 402, the cleaning pipe 407 precisely scrapes off the talcum powder and impurities on the cable surface, and the scraped dust directly enters the interior of the temporary storage box 402. At this time, the negative pressure airflow generated by the fan blades 404 driven by the motor 401 draws the dust in the temporary storage box 402 into the collection pipe 403. The filter plate 405 in the collection pipe 403 prevents the dust from contacting the fan blades 404, protecting the normal operation of the equipment. The filtered dust is transported through the collection pipe 403 to the collection box 406 for temporary storage, realizing the synchronization of dust removal and cable transportation. Under the traction of the winding drum 204, the cable first passes through the funnel-shaped centering plate of the centering component 5. 503, the centering plate 503, supported by the electric telescopic rod 502, precisely centers and guides the cable, ensuring that the cable is always in the center of the conveying path and enters the detection range of the detection component 6. At this time, the first bevel gear 614 alternately meshes with the second bevel gear 615 and the third bevel gear 616, driving the second flat gear 617 to rotate in both directions. The second flat gear 617 meshes with the third flat gear 618 on the outer wall of the mounting frame 602, driving the mounting frame 602 to rotate cyclically, thereby driving the movable frame 603 and the detector 605 to move synchronously back and forth, expanding the single-point detection to circumferential reciprocating scanning surface detection, thus realizing the detection of the cable.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-destructive testing device for power cables, comprising a base (1), characterized in that, The top of the base (1) is provided with a retractable assembly (2); the top of the base (1) is provided with a tensioning assembly (3); the top of the base (1) is provided with a dust removal assembly (4). A centering component (5) is provided on the top of the base (1); a detection component (6) is provided on the top of the base (1); and a linkage component (7) is provided on the top of the base (1). The take-up and take-down assembly (2) includes a first support frame (201), the bottom of the first support frame (201) is fixedly connected to the top of the base (1), the first support frame (201) is detachably connected to a cable drum (202) via pneumatic grippers, the top of the base (1) is fixedly connected to a second support frame (203), and the second support frame (203) is detachably connected to a take-up drum (204) via pneumatic grippers. The dust removal assembly (4) includes a motor (401), the bottom end of which is detachably connected to the top of the base (1). A temporary storage box (402) is fixedly connected to the top of the base (1). A collection pipe (403) is fixedly connected to the bottom end of the temporary storage box (402). A fan blade (404) is rotatably connected to the end of the collection pipe (403) near the motor (401) via a bearing. The output end of the motor (401) is fixedly connected to the fan blade (404) via a coupling. A filter plate (405) is detachably connected inside the collection pipe (403). A collection box (406) is movably connected to the top of the base (1). The top of the collection box (406) is connected to the bottom of the collection pipe (403). A cleaning pipe (407) is threadedly connected to one end of the temporary storage box (402).

2. The non-destructive testing device for power cables according to claim 1, characterized in that, A pull rod (408) is fixedly connected to the side of the collection box (406) away from the motor (401), and a handle (409) is fixedly connected to the end of the pull rod (408) away from the collection box (406).

3. The non-destructive testing device for power cables according to claim 1, characterized in that, The tensioning assembly (3) includes a third support frame (301), the bottom end of which is fixedly connected to the top of the base (1), and a spring telescopic rod (302) is detachably connected to the outer wall of the third support frame (301). The telescopic end of the spring telescopic rod (302) is rotatably connected to a tension roller (303) via a bearing, and a soft pad is fixedly connected to the outer wall of the tension roller (303).

4. The non-destructive testing device for power cables according to claim 1, characterized in that, The centering component (5) includes a first support plate (501), the bottom end of the first support plate (501) is fixedly connected to the top of the base (1), and the first support plate (501) is detachably connected to an electric telescopic rod (502) through a hole. The telescopic end of the electric telescopic rod (502) is fixedly connected to a centering plate (503), and the centering plate (503) is configured as a funnel shape.

5. The non-destructive testing device for power cables according to claim 1, characterized in that, The detection component (6) includes a second support plate (601), the bottom end of which is fixedly connected to the top of the base (1). The second support plate (601) is rotatably connected to a mounting frame (602) through a hole. A first spur gear (606) is rotatably connected to the inner wall of the mounting frame (602). A knob (607) is fixedly connected to one end of the first spur gear (606) located outside the mounting frame (602). A gear ring is fixedly connected inside the mounting frame (602). (608), the gear ring (608) meshes with the first spur gear (606), a rack (609) is slidably connected to the mounting frame (602), a movable frame (603) is fixedly connected to one end of the rack (609) outside the mounting frame (602), a first spring (604) is fixedly connected to the inner wall of the movable frame (603), a detector (605) is fixedly connected to the movable end of the first spring (604), and the detector (605) is slidably connected to the movable frame (603).

6. The non-destructive testing device for power cables according to claim 5, characterized in that, The mounting frame (602) is internally fixedly connected to a second spring (610), and a connecting plate (611) is slidably connected to the mounting frame (602). One side of the connecting plate (611) is fixedly connected to the movable end of the second spring (610). A second locking plate (613) is fixedly connected to the connecting plate (611), and a first locking plate (612) is fixedly connected to the knob (607). The first locking plate (612) and the second locking plate (613) are engaged by locking teeth.

7. The non-destructive testing device for power cables according to claim 5, characterized in that, The top of the base (1) is provided with a first bevel gear (614), and the top of the base (1) is rotatably connected to a second bevel gear (615) via a bearing. The second bevel gear (615) is fixedly connected to a third bevel gear (616) via a round rod. The end of the third bevel gear (616) away from the second bevel gear (615) is fixedly connected to a second flat gear (617). The outer wall of the mounting frame (602) is fixedly connected to a third flat gear (618), and the third flat gear (618) and the second flat gear (617) are connected by tooth meshing.

8. The non-destructive testing device for power cables according to claim 1, characterized in that, The linkage component (7) includes a fourth spur gear (701), which is fixedly connected to the output end of the motor (401). A fixed frame (702) is fixedly connected to the top of the base (1). A fifth spur gear (703) is rotatably connected to the inner wall of the fixed frame (702). The fifth spur gear (703) is connected to the fourth spur gear (701) through tooth meshing. A first transmission wheel (704) is fixedly connected to the fifth spur gear (703). An external transmission is connected to a transmission belt (705). A third support plate (706) is fixedly connected to the top of the base (1). A round rod is rotatably connected to the third support plate (706) via a bearing. A second transmission wheel (707) is fixedly connected to the round rod on the third support plate (706). The second transmission wheel (707) is connected to the transmission belt (705). A third transmission wheel (708) is provided on the second support frame (203). The third transmission wheel (708) is connected to the transmission belt (705).

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