A repair device and method for overhead ground wires of power distribution lines

Abstract

This invention discloses a repair device and method for overhead ground wires of power distribution lines, relating to the field of power engineering maintenance technology. The invention includes a working platform with an I-beam frame fixedly installed at the top center. A side plate is fixedly installed on the top of the working platform near the I-beam frame via a bracket. A limiting protection component is provided in the middle of the working platform, and a synchronous self-locking component is provided on the side plate. Two symmetrically distributed cleaning modules are provided on the synchronous self-locking component. A drive module is provided between the I-beam frame and the side plate. By setting the limiting protection component and the synchronous self-locking component, this invention enables the limiting protection component to drive the limiting wheel and the drive wheel to form an upper and lower clamping structure for initial limiting. Simultaneously, the synchronous self-locking component drives the semi-circular slide rail and semi-circular toothed ring of the cleaning module to precisely close, forming a circular slide rail and toothed ring, thus constructing a radial secondary limiting. This achieves dual stable constraints on the repair device and the ground wire, effectively avoiding the risk of the device falling.

Description

Technical Field

[0001] This invention relates to the field of power engineering maintenance technology, specifically to a device and method for repairing overhead ground wires of distribution lines. Background Technology

[0002] Overhead ground wires, also known as lightning protection wires or shielding wires, are conductors erected at the top of overhead transmission line towers, connected to the towers and grounded. They are mainly used to protect transmission lines from lightning strikes and reduce induced overvoltages, while also providing some mechanical support. They are an important component of lightning protection and safe operation of transmission lines. Overhead ground wires are usually made of multiple strands of high-carbon steel wires twisted together. They are exposed to complex natural environments for a long time. Under the repeated action of dynamic forces such as wind loads, ice loads, and conductor galloping, the internal metal strands are prone to breakage due to continuous stress and fatigue wear, affecting overall performance and line safety. Overhead ground wires are exposed to the open environment for extended periods, and suspended equipment is susceptible to interference from complex weather conditions. Strong winds can generate lateral impact and torque on the equipment, causing irregular slippage along the axial direction of the ground wire, or swaying or even tilting around the ground wire radially. This disrupts the stable contact between the drive wheel and the ground wire, as well as the clamping balance of the limiting components, easily leading to suspension support failure and the safety risk of the equipment derailing and falling. Secondly, various environmental factors accelerate the corrosion process of overhead ground wires, and the gaps formed by corrosion further exacerbate electrochemical corrosion. During the repair process, gaps easily form between the rust layer and the new wire, where moisture and pollutants can easily accumulate, making the repaired area a new corrosion starting point and ultimately significantly shortening the service life of the ground wire. To address these problems, the inventors propose a repair device and method for overhead ground wires of power distribution lines. Summary of the Invention

[0003] To address the safety hazards posed by environmental interference during overhead ground wire repair operations and the need for cleaning during repairs, this invention aims to provide a device and method for repairing overhead ground wires in power distribution lines.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a device for repairing overhead ground wires of power distribution lines, comprising a working platform, an I-shaped frame fixedly installed at the top center of the working platform, a side plate fixedly installed on the top of the working platform near the I-shaped frame by a bracket, a limit protection component provided in the middle of the working platform, a synchronous self-locking component provided on the side plate, two symmetrically distributed cleaning modules provided on the synchronous self-locking component, a drive module provided between the I-shaped frame and the side plate, a robotic arm provided in the middle of the top of the working platform away from the side plate, a clamp provided at the end of the robotic arm, and a battery compartment provided at the bottom of the working platform directly below the robotic arm.

[0005] Preferably, the limiting protection assembly includes a fixed plate and two symmetrically distributed tilting arms. The fixed plate is securely installed inside the working platform by a bracket. Both tilting arms are rotatably installed on the top of the working platform. Limiting wheels are rotatably installed on the top of the tilting arms. Guide shafts are fixedly installed at the bottom of the tilting arms. A lifting frame is vertically slidably installed on the outside of the fixed plate, and the guide shaft is slidably connected to the fixed plate and the lifting frame. Two symmetrically distributed rotating shafts are rotatably installed on the top of the I-beam frame. Drive wheels that cooperate with the limiting wheels are fixedly sleeved on the outer walls of the two rotating shafts. Two symmetrically divided arc-shaped grooves are opened on the fixed plate. Two symmetrically divided horizontal grooves are opened on the lifting frame, and the guide shaft slides in the arc-shaped grooves and horizontal grooves. An electric telescopic rod is fixedly installed in the middle of the fixed plate, and the driving end of the electric telescopic rod is fixedly connected to the lifting frame.

[0006] Preferably, the cleaning module includes two vertically symmetrically distributed guide frames and card frames. Both guide frames are fixedly mounted on a synchronous self-locking assembly. Two symmetrically distributed semi-circular slide rails are fixedly mounted on the outer walls of both card frames, and the two semi-circular slide rails on the same side close to form a circular slide rail. A pulley group is provided on the guide frame, and the semi-circular slide rails are embedded in the pulley group. A card plate is inserted into the card frame, and a cleaning brush is provided on the outside of the card plate. Both ends of the card frame are provided with quick-release components that cooperate with the card plate. A damping limiting component is provided in the middle of the upper guide frame. A semi-circular toothed ring is firmly installed in the middle of the outer wall of the card frame by bolts, and the upper and lower toothed rings close to form a complete circular toothed ring. A plug is fixedly installed on the top of the lower semi-circular slide rail and the semi-circular toothed ring. A slot is opened at the bottom of the upper semi-circular slide rail and the semi-circular toothed ring to cooperate with the plug.

[0007] Preferably, the synchronous self-locking assembly includes a lifting rod, which is vertically and slidably installed on the work platform via a spline. The lifting rod is fixedly connected to one end of the lifting frame. An arc-shaped rod is fixedly installed at the top of the lifting rod. Both ends of the arc-shaped rod are rotatably hinged to a driving rod. The other end of the driving rod is rotatably hinged to a triangular plate, which is laterally slidably installed on the side plate. Both ends of the triangular plate are rotatably hinged to a driven rod. The other end of the driven rod is rotatably hinged to a sliding frame, which is vertically slidably installed on the side plate. A guide frame is fixedly connected to the corresponding sliding frame via bolts. Two symmetrically distributed guide rods are fixedly installed at the bottom of the arc-shaped rod, and the guide rods penetrate through the top of the work platform.

[0008] Preferably, the quick-release assembly includes a cylinder, which is fixedly installed on the outer wall of the card frame. A limiting pin is inserted through the cylinder and passes through the card frame. A circular plate is fixedly sleeved on the outer wall of the card frame and is slidably installed on the inner wall of the cylinder. A return spring is sleeved on the outer wall of the limiting pin, and the two ends of the return spring are respectively attached to the circular plate and the inner wall of the cylinder. A limiting groove is opened on the card plate to cooperate with the limiting pin.

[0009] Preferably, the damping limiting component includes a damping frame, which is securely installed at the top center of the corresponding guide frame by bolts. A damping block is slidably installed on the inner wall of the damping frame, and the bottom of the damping block is semi-circular. Two symmetrically distributed damping pins are fixedly installed on the top of the damping block, and the damping pins penetrate the top of the damping frame. A damping spring is sleeved on the outer wall of the damping pin, and the two ends of the damping spring are respectively attached to the inner wall of the damping frame and the top of the damping block.

[0010] Preferably, the drive module includes two symmetrically distributed driven shafts and a transmission shaft. The two driven shafts are rotatably mounted on the top of the work platform via bearing seats. The transmission shaft is rotatably mounted on the I-beam frame, and the transmission shaft is connected to the two rotating shafts via a synchronous pulley transmission group. The ends of the two driven shafts are connected to a spline shaft via a universal coupling. A spline sleeve is slidably fitted on the outer wall of the spline shaft. The end of the spline sleeve is connected to an auxiliary shaft via a universal coupling. The auxiliary shaft is rotatably mounted on the bottom center of the corresponding guide frame via a bearing seat. A rotating gear is fixedly fitted on the outer wall of the auxiliary shaft, and the rotating gear meshes with a semi-circular gear ring. A servo motor is fixedly mounted on the side plate near the transmission shaft, and the drive end of the servo motor is connected to the two driven shafts and the transmission shaft via a bevel gear group.

[0011] A method based on a power distribution line overhead ground wire repair device includes the following steps: S1. First, the repair device is transported to the target overhead ground line location using a transport drone. Then, the two drive wheels are mounted on the overhead ground line. At this time, the repair device is suspended on the overhead ground line, completing the mounting preparation before the operation. S2. The limit protection component drives the two limit wheels to flip upward and attach to the bottom of the ground wire and cooperate with the drive wheel to provide initial limit protection for the repair device. At the same time, the limit protection component drives the semi-circular slide rail and semi-circular toothed ring in the cleaning module to close through the synchronous self-locking component, providing secondary limit protection for the repair device. S3. While the drive module moves the repair device along the overhead ground wire, it simultaneously drives the cleaning brush to rotate and clean the rusted parts on the outer wall of the ground wire. S4. After the cleaning operation is completed, the robotic arm precisely drives the clamp to move to the area to be repaired on the ground wire. The clamp first opens through the drive mechanism to adjust the clamping posture and accurately align with the broken strand. Then the clamping arm closes and tightly hugs the ground wire. The mechanical fastening force of the clamp firmly fixes the loose broken strand to the ground wire body, completing the repair operation on the damaged part of the ground wire.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention sets up a limit protection component and a synchronous self-locking component, so that the limit protection component drives the limit wheel and the drive wheel to form an upper and lower clamping structure for initial limit. At the same time, the synchronous self-locking component drives the semi-circular slide rail and semi-circular toothed ring of the cleaning module to precisely close and form a circular slide rail and toothed ring, thus constructing a radial secondary limit. This achieves dual stable constraints between the repair device and the ground wire, effectively avoiding the risk of the device falling. 2. This invention sets up a cleaning module and a driving module. The driving module drives the driving wheel to rotate and move the repair device. At the same time, it drives two sets of cleaning brushes to rotate around the ground wire. The friction of the cleaning brushes peels off the rust layer and cleans the overhead ground wire. This effectively avoids the formation of gaps between the rust layer and the new wire during repair, reduces the risk of secondary corrosion from the source, and extends the service life of the ground wire after repair. 3. By setting up a quick-connect and disconnect component, this invention achieves efficient replacement and flexible adaptation of the cleaning brush. Simply pull the limit pin to compress the return spring of the circular plate to release the limit constraint on the card plate, thereby quickly replacing the cleaning brush. Without the need for tools, steel wire brushes, copper wire brushes, or nylon brushes can be flexibly matched according to the degree of ground wire corrosion to meet different cleaning needs, improve the continuous operation capability and maintenance convenience of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the back section structure of the present invention; Figure 3 This is a schematic diagram of the cleaning module structure in this invention; Figure 4 This is a schematic diagram of the cleaning module structure in this invention; Figure 5 This is a schematic diagram of the working platform and the I-beam frame in this invention; Figure 6 This is a schematic diagram of the limiting and protective component in this invention; Figure 7 This is a schematic diagram of the working platform and side plate in this invention; Figure 8 This is a schematic diagram of the structure of the I-beam frame and the drive wheel in this invention; Figure 9 This is a schematic diagram of the structure of the synchronization self-locking component in this invention; Figure 10 This is a schematic diagram of the drive module in this invention; Figure 11 for Figure 2 Enlarged structural diagram at point A; Figure 12 for Figure 3 Enlarged structural diagram at point B; Figure 13 for Figure 4 A magnified schematic diagram of the structure at point C.

[0015] In the diagram: 1. Working platform; 2. I-beam frame; 3. Side plate; 4. Limiting and protective assembly; 401. Fixed plate; 402. Tilting arm; 403. Limiting wheel; 404. Guide shaft; 405. Lifting frame; 406. Arc groove; 407. Horizontal groove; 408. Rotating shaft; 409. Drive wheel; 410. Electric telescopic rod; 5. Synchronous self-locking assembly; 501. Lifting rod; 502. Bow-shaped rod; 503. Driving rod; 504. Triangular plate; 505. Driven rod; 506. Sliding frame; 507. Guide rod; 6. Cleaning module; 61. Guide frame; 62. Clip frame; 63. Semicircular slide rail; 64. Semicircular gear ring; 65. Clamping plate; 66. Cleaning brush; 67. Quick-release assembly; 671. Cylinder; 672. Limit pin; 673. Circular plate; 674. Return spring; 68. Damping limit assembly; 681. Damping frame; 682. Damping block; 683. Damping pin; 684. Damping spring; 7. Drive module; 701. Driven shaft; 702. Transmission shaft; 703. Spline shaft; 704. Spline sleeve; 705. Auxiliary shaft; 706. Rotating gear; 707. Servo motor; 8. Robotic arm; 9. Clamping device; 10. Battery compartment. Detailed Implementation

[0016] 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.

[0017] Example: Figure 1-13As shown, the present invention provides a technical solution: a repair device for overhead ground wires of power distribution lines, including a working platform 1, an I-shaped frame 2 fixedly installed at the top center of the working platform 1, a side plate 3 fixedly installed at the top of the working platform 1 near the I-shaped frame 2 by a bracket, a limit protection component 4 provided in the middle of the working platform 1, a synchronous self-locking component 5 provided on the side plate 3, two symmetrically distributed cleaning modules 6 provided on the synchronous self-locking component 5, a drive module 7 provided between the I-shaped frame 2 and the side plate 3, a robotic arm 8 provided at the middle of the top of the working platform 1 away from the side plate 3, a clamp 9 provided at the end of the robotic arm 8, and a battery compartment 10 provided at the bottom of the working platform 1 directly below the robotic arm 8; The limit protection assembly 4 includes a fixed plate 401 and two symmetrically distributed tilting arms 402. The fixed plate 401 is securely installed inside the work platform 1 by a bracket. Both tilting arms 402 are rotatably installed on the top of the work platform 1. Limiting wheels 403 are rotatably installed on the top of the tilting arms 402. A guide shaft 404 is fixedly installed on the bottom of the tilting arms 402. A lifting frame 405 is vertically slidably installed on the outside of the fixed plate 401, and the guide shaft 404 is slidably connected to the fixed plate 401 and the lifting frame 405. The cleaning module 6 includes two vertically symmetrically distributed guide frames 61 and a frame 62. Both guide frames 61 are fixedly installed on the synchronous self-locking assembly 5. Both frames 62 have two symmetrically distributed semi-circular slide rails 63 fixedly installed on their outer walls. The two semi-circular slide rails 63 on the same side close to form a circular slide rail. The guide frames 61 are provided with pulley groups, and the semi-circular slide rails 63 are embedded in the pulley groups. The frame 62 is provided with a card plate 65. A cleaning brush 66 is provided on the outside of the card plate 65. Both ends of the frame 62 are provided with quick-release components 67 that cooperate with the card plate 65. A damping limiting component 68 is provided in the middle of the upper guide frame 61.

[0018] By adopting the above technical solution, the limit protection component 4 drives the two limit wheels 403 to rotate synchronously and cooperate with the drive wheel 409 to clamp and limit the overhead ground wire, while driving the cleaning brushes 66 to move closer to each other and contact the overhead ground wire.

[0019] The synchronous self-locking assembly 5 includes a lifting rod 501, which is vertically and slidably installed on the work platform 1 via a spline. The lifting rod 501 is fixedly connected to one end of the lifting frame 405. An arc-shaped rod 502 is fixedly installed at the top of the lifting rod 501. Both ends of the arc-shaped rod 502 are rotatably hinged to a driving rod 503. The other end of the driving rod 503 is rotatably hinged to a triangular plate 504. The triangular plate 504 is slidably installed laterally on the side plate 3. Both ends of the triangular plate 504 are rotatably hinged to a driven rod 505. The other end of the driven rod 505 is rotatably hinged to a sliding frame 506. The sliding frame 506 is vertically and slidably installed on the side plate 3. The guide frame 61 is fixedly connected to the corresponding sliding frame 506 by bolts.

[0020] By adopting the above technical solution, while the lifting frame 405 moves, the lifting rod 501, the bow-shaped rod 502 and the active rod 503 drive the two sets of sliding frames 506 to move closer or further apart synchronously.

[0021] The quick-release assembly 67 includes a cylinder 671, which is fixedly installed on the outer wall of the frame 62. A limiting pin 672 is inserted through the cylinder 671 and passes through the frame 62. A circular plate 673 is fixedly sleeved on the outer wall of the frame 62 and slides on the inner wall of the cylinder 671. A return spring 674 is sleeved on the outer wall of the limiting pin 672 and its two ends are respectively attached to the circular plate 673 and the inner wall of the cylinder 671. A limiting groove is opened on the plate 65 to cooperate with the limiting pin 672.

[0022] By adopting the above technical solution, the card plate 65 can be quickly limited or contacted by pulling the limit pin 672, so as to quickly replace the cleaning brush 66.

[0023] The damping limiting assembly 68 includes a damping frame 681, which is securely installed at the top center of the corresponding guide frame 61 by bolts. A damping block 682 is slidably installed on the inner wall of the damping frame 681, and the bottom of the damping block 682 is semi-circular. Two symmetrically distributed damping pins 683 are fixedly installed on the top of the damping block 682, and the damping pins 683 penetrate the top of the damping frame 681. A damping spring 684 is sleeved on the outer wall of the damping pin 683, and the two ends of the damping spring 684 are respectively attached to the inner wall of the damping frame 681 and the top of the damping block 682.

[0024] By adopting the above technical solution, the bottom semi-circular block of the damping block 682 is engaged with the semi-circular toothed ring 64. When the two semi-circular toothed rings 64 are separated, the damping block 682 limits the upper semi-circular toothed ring 64 to prevent rotation.

[0025] Two symmetrically distributed rotating shafts 408 are rotatably mounted on the top of the I-shaped frame 2. The outer walls of the two rotating shafts 408 are fixedly fitted with drive wheels 409 that cooperate with the limiting wheels 403. Two symmetrically spaced arc-shaped grooves 406 are opened on the fixed plate 401. Two symmetrically spaced transverse grooves 407 are opened on the lifting frame 405. The guide shaft 404 slides in the arc-shaped grooves 406 and the transverse grooves 407. An electric telescopic rod 410 is fixedly installed in the middle of the fixed plate 401. The driving end of the electric telescopic rod 410 is fixedly connected to the lifting frame 405.

[0026] By adopting the above technical solution, the tilting arm 402 is tilted along the arc groove 406 under the guidance of the guide shaft 404 and the transverse groove 407.

[0027] A semi-circular toothed ring 64 is securely installed in the middle of the outer wall of the frame 62 by bolts, and the upper and lower toothed rings are closed to form a complete circular toothed ring. A plug is fixedly installed at the top of the lower semi-circular slide rail 63 and the top of the semi-circular toothed ring 64, and a slot is opened at the bottom of the upper semi-circular slide rail 63 and the semi-circular toothed ring 64 to cooperate with the plug.

[0028] By adopting the above technical solution, the bolt and slot are matched, thereby improving the structural rigidity after the semicircular slide rail 63 and the semicircular toothed ring 64 are closed.

[0029] The drive module 7 includes two symmetrically distributed driven shafts 701 and a transmission shaft 702. The two driven shafts 701 are rotatably mounted on the top of the work platform 1 via bearing seats. The transmission shaft 702 is rotatably mounted on the I-beam 2. The transmission shaft 702 is connected to two rotating shafts 408 via a synchronous pulley transmission group. The ends of the two driven shafts 701 are connected to a splined shaft 703 via a universal coupling. A splined sleeve 704 is slidably sleeved on the outer wall of the splined shaft 703. The end of the splined sleeve 704 is connected to an auxiliary shaft 705 via a universal coupling. The auxiliary shaft 705 is rotatably mounted on the bottom center of the corresponding guide frame 61 via a bearing seat. A rotating gear 706 is fixedly sleeved on the outer wall of the auxiliary shaft 705. The rotating gear 706 is meshed with a semi-circular gear ring 64.

[0030] By adopting the above technical solution, even after the guide frame 61 is raised and lowered, the two driven shafts 701 can still drive the corresponding auxiliary shafts 705 to rotate.

[0031] A servo motor 707 is fixedly installed on the side plate 3 near the drive shaft 702, and the drive end of the servo motor 707 is connected to the two driven shafts 701 and the drive shaft 702 through a bevel gear set.

[0032] By adopting the above technical solution, the servo motor 707 drives the driven shaft 701 and the transmission shaft 702 to rotate.

[0033] Two symmetrically distributed guide rods 507 are fixedly installed at the bottom of the bow-shaped rod 502, and the guide rods 507 penetrate through the top of the working platform 1.

[0034] By adopting the above technical solution, the bow-shaped rod 502 can move stably up and down under the guidance of the guide rod 507.

[0035] A method based on a power distribution line overhead ground wire repair device includes the following steps: S1. First, the repair device is transported to the target overhead ground line location using a transport drone. Then, the two drive wheels 409 are mounted on the overhead ground line. At this time, the repair device is suspended on the overhead ground line, completing the mounting preparation before the operation. S2. The limit protection component 4 drives the two limit wheels 403 to flip upward and attach to the bottom of the ground wire and cooperate with the drive wheel 409 to provide initial limit protection for the repair device. At the same time, the limit protection component 4 drives the semi-circular slide rail 63 and semi-circular toothed ring 64 in the cleaning module 6 to close through the synchronous self-locking component 5, and provides secondary limit protection for the repair device. S3, while the drive module 7 drives the repair device to move along the overhead ground wire, it simultaneously drives the cleaning brush 66 to rotate and clean the rusted parts of the outer wall of the ground wire. S4. After the cleaning operation is completed, the robotic arm 8 precisely drives the clamp 9 to move to the area to be repaired on the ground wire. The clamp 9 first opens through the drive mechanism to adjust the clamping posture and accurately align with the broken strand. Then the clamping arm closes and tightly hugs the ground wire. The mechanical fastening force of the clamp firmly fixes the loose broken strand to the ground wire body, completing the repair operation on the damaged part of the ground wire.

[0036] Working principle: In actual use, firstly, as... Figure 1 As shown, the device is precisely deployed to the target ground wire using a transport drone, allowing the drive wheel 409 on the I-beam 2 to rest on the overhead ground wire. At this point, the repair device is stably attached to the ground wire in a suspended posture. The wheel groove of the drive wheel 409 matches the diameter of the ground wire, ensuring no tilting or slippage during suspension. Figure 2 , Figure 6 As shown, the drive end of the electric telescopic rod 410 then retracts, pushing the lifting frame 405 to slide vertically upwards. During this process, the guide shaft 404 slides within the arc-shaped groove 406 and the transverse groove 407, causing the tilting arm 402 to rotate. This causes the two limiting wheels 403 to come into contact with the ground line from below, forming a clamping structure with the upper drive wheel 409. This achieves initial axial positioning of the device along the ground line, preventing overall displacement during operation. Figure 9 As shown, during the upward movement, the lifting frame 405 pushes the lifting rod 501 to rise synchronously. The lifting rod 501 drives the two triangular plates 504 to slide laterally and approach each other through the bow-shaped rod 502 and the active rod 503. During the approaching process, the two triangular plates 504 push the corresponding two sliding frames 506 to move vertically through the driven rod 505, causing the two guide frames 61 in the vertical direction to approach each other, so that the semi-circular slide rail 63 forms a complete circular slide rail, and the semi-circular toothed ring 64 closes into a complete toothed ring. Through the engagement of the plug and the slot, the radial constraint between the device and the ground wire is further enhanced. At this time, the overhead ground wire is located at the center of the closed ring axis, thereby realizing secondary limiting. Subsequently, as Figure 9As shown, the servo motor 707 is activated. The servo motor 707 drives the driven shaft 701 and the transmission shaft 702 to rotate synchronously through the bevel gear set. The transmission shaft 702 drives the two rotating shafts 408 and the drive wheel 409 to rotate synchronously through the synchronous wheel transmission set, so that the device moves slowly along the ground wire axis. The driven shaft 701 drives the auxiliary shaft 705 to rotate through the universal coupling, the spline shaft 703 and the spline sleeve 704. The auxiliary shaft 705 meshes with the closed semi-circular toothed ring 64 through the rotating gear 706, which drives the frame 62 and the cleaning brush 66 to rotate around the ground wire circumferentially under the guidance of the closed semi-circular slide rail 63. The friction of the cleaning brush 66 is used to peel off the rust layer and clean the overhead ground wire. After cleaning, the robotic arm 8, based on a preset visual positioning program, precisely moves the clamp 9 to the broken strand position. Then, the clamp 9 first opens and adjusts its posture through the drive mechanism, and closes after aligning with the broken strand. The mechanical fastening force of the clamp firmly fixes the loose broken strand to the ground wire body, completing the repair operation of the ground wire damage. like Figure 3 , Figure 12 As shown, the cleaning brush 66 can be replaced as needed before use. When the cleaning brush 66 needs to be replaced, manually pull the exposed end of the limiting pin 672, causing the circular plate 673 to compress the return spring 674 and slide inside the cylinder 671, so that the limiting pin 672 exits from the limiting groove of the clamping plate 65, thus releasing the constraint on the clamping plate 65. When installation is required, simply pull the limiting pin 672 according to the same steps, install the clamping plate 65 into the slot of the clamping frame 62, align the limiting groove with the position of the limiting pin 672, and then release. After the limit pin 672 is engaged, the return spring 674 releases its elastic potential energy, pushing the circular plate 673 and the limit pin 672 to reset. The limit pin 672 is then reinserted into the limit slot of the card plate 65, automatically locking the cleaning brush 66 and enabling its rapid fixation. The cleaning brush 66 can be adjusted according to cleaning needs. In its initial state, the front cleaning brush 66 of the repair machine can be set to a steel wire brush or a copper wire brush, while the rear cleaning brush 66 is a nylon brush. This allows for rapid cleaning of the front end and cleaning of residual dust and fine deposits after the rust layer has been removed from the rear end.

[0037] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A device for repairing overhead ground wires of power distribution lines, comprising a working platform (1), characterized in that: The top of the work platform (1) is fixedly installed with an I-shaped frame (2). A side plate (3) is fixedly installed on the top of the work platform (1) near the I-shaped frame (2) by a bracket. A limit protection component (4) is provided in the middle of the work platform (1). A synchronous self-locking component (5) is provided on the side plate (3). Two symmetrically distributed cleaning modules (6) are provided on the synchronous self-locking component (5). A drive module (7) is provided between the I-shaped frame (2) and the side plate (3). A robotic arm (8) is provided in the middle of the top of the work platform (1) away from the side plate (3). A clamp (9) is provided at the end of the robotic arm (8). A battery compartment (10) is provided at the bottom of the work platform (1) directly below the robotic arm (8). The limiting protection component (4) includes a fixed plate (401) and two symmetrically distributed tilting arms (402). The fixed plate (401) is securely installed inside the working platform (1) by a bracket. Both tilting arms (402) are rotatably installed on the top of the working platform (1). Limiting wheels (403) are rotatably installed on the top of the tilting arms (402). A guide shaft (404) is fixedly installed at the bottom of the tilting arms (402). A lifting frame (405) is vertically slidably installed on the outside of the fixed plate (401), and the guide shaft (404) is slidably connected to the fixed plate (401) and the lifting frame (405). The cleaning module (6) includes two vertically symmetrically distributed guide frames (61) and a card frame (62). Both guide frames (61) are fixedly installed on the synchronous self-locking assembly (5). Both card frames (62) have two symmetrically distributed semi-circular slide rails (63) fixedly installed on their outer walls. The two semi-circular slide rails (63) on the same side close to form a circular slide rail. The guide frame (61) is provided with a pulley group, and the semi-circular slide rails (63) are embedded in the pulley group. The card frame (62) is provided with a card plate (65). The outside of the card plate (65) is provided with a cleaning brush (66). Both ends of the card frame (62) are provided with quick-release components (67) that cooperate with the card plate (65). A damping limit component (68) is provided in the middle of the upper guide frame (61).

2. The device for repairing overhead ground wires of power distribution lines as described in claim 1, characterized in that, The synchronous self-locking assembly (5) includes a lifting rod (501), which is vertically slidably installed on the working platform (1) via a spline. The lifting rod (501) is fixedly connected to one end of the lifting frame (405). An arc-shaped rod (502) is fixedly installed at the top of the lifting rod (501). Both ends of the arc-shaped rod (502) are rotatably hinged to an active rod (503). The other end of the active rod (503) is rotatably hinged to a triangular plate (504). The triangular plate (504) is slidably installed on the side plate (3). Both ends of the triangular plate (504) are rotatably hinged to a driven rod (505). The other end of the driven rod (505) is rotatably hinged to a sliding frame (506). The sliding frame (506) is vertically slidably installed on the side plate (3). The guide frame (61) is fixedly connected to the corresponding sliding frame (506) by bolts.

3. The device for repairing overhead ground wires of power distribution lines as described in claim 2, characterized in that, The quick-release assembly (67) includes a cylinder (671), which is fixedly installed on the outer wall of the frame (62). A limiting pin (672) is inserted through the cylinder (671) and passes through the frame (62). A circular plate (673) is fixedly sleeved on the outer wall of the frame (62) and slides on the inner wall of the cylinder (671). A return spring (674) is sleeved on the outer wall of the limiting pin (672) and the two ends of the return spring (674) are respectively attached to the circular plate (673) and the inner wall of the cylinder (671). A limiting groove is opened on the plate (65) to cooperate with the limiting pin (672).

4. The device for repairing overhead ground wires of power distribution lines as described in claim 3, characterized in that, The damping limiting component (68) includes a damping frame (681), which is fixedly installed at the top center of the corresponding guide frame (61) by bolts. A damping block (682) is slidably installed on the inner wall of the damping frame (681), and the bottom of the damping block (682) is semi-circular. Two symmetrically distributed damping pins (683) are fixedly installed on the top of the damping block (682), and the damping pins (683) penetrate the top of the damping frame (681). A damping spring (684) is sleeved on the outer wall of the damping pin (683), and the two ends of the damping spring (684) are respectively attached to the inner wall of the damping frame (681) and the top of the damping block (682).

5. A repair device based on overhead ground wire of a power distribution line as described in claim 4, characterized in that, The top of the I-shaped frame (2) has two symmetrically distributed rotating shafts (408). The outer walls of the two rotating shafts (408) are fixedly fitted with drive wheels (409) that cooperate with the limiting wheels (403). The fixed plate (401) has two symmetrically divided arc-shaped grooves (406). The lifting frame (405) has two symmetrically divided transverse grooves (407). The guide shaft (404) slides in the arc-shaped grooves (406) and transverse grooves (407). The fixed plate (401) has an electric telescopic rod (410) fixedly installed in the middle. The driving end of the electric telescopic rod (410) is fixedly connected to the lifting frame (405).

6. The device for repairing overhead ground wires of power distribution lines as described in claim 5, characterized in that, The card frame (62) is securely mounted with a semi-circular toothed ring (64) by bolts in the middle of its outer wall. The upper and lower toothed rings are closed to form a complete circular toothed ring. The top of the lower semi-circular slide rail (63) and the top of the semi-circular toothed ring (64) are both fixedly mounted with plugs. The bottom of the upper semi-circular slide rail (63) and the bottom of the semi-circular toothed ring (64) are both provided with slots that cooperate with the plugs.

7. A repair device based on overhead ground wire of a power distribution line as described in claim 6, characterized in that, The drive module (7) includes two symmetrically distributed driven shafts (701) and a transmission shaft (702). The two driven shafts (701) are rotatably mounted on the top of the work platform (1) through a bearing seat. The transmission shaft (702) is rotatably mounted on the I-beam frame (2). The transmission shaft (702) is connected to the two rotating shafts (408) through a synchronous wheel transmission group. The ends of the two driven shafts (701) are connected to a spline shaft (703) through a universal coupling. The outer wall of the spline shaft (703) is slidably fitted with a spline sleeve (704). The end of the spline sleeve (704) is connected to an auxiliary shaft (705) through a universal coupling. The auxiliary shaft (705) is rotatably mounted on the middle of the bottom of the corresponding guide frame (61) through a bearing seat. The outer wall of the auxiliary shaft (705) is fixedly fitted with a rotating gear (706). The rotating gear (706) is meshed with a semi-circular toothed ring (64).

8. A repair device based on overhead ground wire of a power distribution line as described in claim 7, characterized in that, A servo motor (707) is fixedly installed on the side plate (3) near the drive shaft (702), and the drive end of the servo motor (707) is connected to the two driven shafts (701) and the drive shaft (702) through a bevel gear set.

9. A repair device based on overhead ground wire of a power distribution line as described in claim 8, characterized in that, The bottom end of the bow-shaped rod (502) is fixedly installed with two symmetrically distributed guide rods (507), and the guide rods (507) penetrate through the top of the insertion work platform (1).

10. The method used in the repair device for overhead ground wires of power distribution lines as described in claim 9, characterized in that, Includes the following steps: S1. First, the repair device is transported to the target overhead ground line location using a transport drone. Then, the two drive wheels (409) are mounted on the overhead ground line. At this time, the repair device is suspended on the overhead ground line, completing the mounting preparation before the operation. S2. The limit protection component (4) drives the two limit wheels (403) to flip upward and attach to the bottom of the ground wire and cooperate with the drive wheel (409) to provide initial limit protection for the repair device. At the same time, the limit protection component (4) drives the semi-circular slide rail (63) and semi-circular toothed ring (64) in the cleaning module (6) to close through the synchronous self-locking component (5) to provide secondary limit protection for the repair device. S3. While driving the repair device to move along the overhead ground wire, the drive module (7) simultaneously drives the cleaning brush (66) to rotate, and cleans the rusted parts of the outer wall of the ground wire. S4. After the cleaning operation is completed, the robotic arm (8) precisely drives the clamp (9) to move to the area to be repaired on the ground wire. The clamp (9) first opens through the drive mechanism to adjust the clamping posture and accurately align with the broken strand. Then the clamping arm closes and tightly hugs the ground wire. The mechanical fastening force of the clamp firmly fixes the loose broken strand to the ground wire body, completing the repair operation on the damaged part of the ground wire.

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