Ground wire repairing device

By designing a ground wire repair device with a rotary repair drum and a grab plate, the problem of low ground wire repair work efficiency is solved, and the ground wire is repaired efficiently without manual climbing, and the ground wire is temporarily fixed through the winding mechanism, which improves work efficiency and safety.

CN119994711APending Publication Date: 2025-05-13MAINTENANCE BRANCH OF STATE GRID HEBEI ELECTRIC POWER +1
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Patent Information

Application Number
CN202510203734.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

In the prior art, ground line repair is inefficient and requires manual climbing for manual repair, which is dangerous and time-consuming.

Method used

A ground wire repair device is designed, including a frame and a traveling lap mechanism. A rotating repair drum and grab disk are installed on the frame. The repair drum and grab disk are driven to rewind the loose ground wire through an electric push rod and a drive motor.

Benefits of technology

The ground wire can be repaired efficiently without manual climbing, which improves work efficiency and ensures safety. The repaired ground wire is temporarily fixed through the winding mechanism to avoid loosening again.

✦ Generated by Eureka AI based on patent content.

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Abstract

A ground wire repairing device disclosed by the present invention comprises a rack and an advancing lap joint mechanism arranged on the rack, the advancing lap joint mechanism is used for enabling the rack to walk on a ground wire, and a first lifting mechanism is installed on one side of the rack in the advancing direction. A fixed rotary table, a repairing rotary drum and a grabbing disc which are coaxial are sequentially arranged on the outer side of a lifting block of the first lifting mechanism, the fixed rotary table, the repairing rotary drum and the grabbing disc are all annular, notches communicating with the interiors are formed in the tops of the fixed rotary table, the repairing rotary drum and the grabbing disc, the repairing rotary drum is rotationally connected to the fixed rotary table, and two opposite second electric push rods are arranged on the repairing rotary drum; the two first electric push rods and the two second electric push rods are located on the two sides of the axis of the fixed rotary table correspondingly. According to the ground wire repairing device, the rack capable of moving on the ground wire drives the rotating repairing rotary drum and the grabbing disc to wind the scattered ground wire again, climbing operation of workers is not needed, the working efficiency is high, and the problem that current ground wire repairing working efficiency is low is effectively solved.
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Description

Technical Field

[0001] The invention belongs to the field of line maintenance equipment, and in particular relates to a ground wire repairing device. Background Art

[0002] During the use of ground wires, due to the complex use environment, it is easy for the strands to become loose or broken, which affects the transmission of current.

[0003] Therefore, when the ground wire is scattered or broken, it needs to be repaired in time. In the past, it was repaired manually by people climbing up high, which is dangerous, time-consuming, labor-intensive, and has low work efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a ground wire repair device to solve the problem of low efficiency of current ground wire repair work.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A ground wire repair device comprises a frame and a travel overlapping mechanism arranged on the frame, the travel overlapping mechanism is used to make the frame walk on the ground wire, a first lifting mechanism is installed on one side of the travel direction of the frame, a coaxial fixed turntable, a repair drum and a grabbing plate are arranged in sequence on the outer side of the lifting block of the first lifting mechanism, the fixed turntable, the repair drum and the grabbing plate are all annular and have a notch connected to the inside at the top, the repair drum is rotatably connected to the fixed turntable, and two opposite second electric push rods are arranged on the repair drum, and the two first electric push rods and the two second electric push rods are respectively located on both sides of the axis of the fixed turntable.

[0007] Furthermore, the traveling overlapping mechanism includes a first driving motor fixedly arranged on the frame and a overlapping wheel rotatably connected to the frame, the first driving motor is transmission-connected to the overlapping wheel, the first driving motor and the overlapping wheel are both two in number and are arranged in sequence along the axis of the fixed turntable, the overlapping wheel is located above the axis of the fixed turntable and the axial directions of the two are perpendicular to each other.

[0008] Furthermore, a gear ring is provided on the outer side of one end of the repair drum close to the first lifting mechanism, and two second drive motors located on both sides of the gear ring are provided on the lifting block of the first lifting mechanism, and both of the two second drive motors are provided with gears meshing with the gear ring; the setting of the two gears can drive the gear ring to rotate even when there is a gap in the gear ring.

[0009] Furthermore, a winding mechanism is provided in the repair drum and is located on one side of its axis. The winding mechanism includes a second lifting mechanism and a swinging motor arranged on the lifting block of the second lifting mechanism. A swing arm is fixedly provided on the output shaft of the swinging motor. A turntable is rotatably connected to the output shaft of the swinging motor. A cross bar is provided on the upper end of the swing arm and is located above the turntable and parallel to the output shaft of the swinging motor. A serrated piece is provided on the cross bar. A gate knife is rotatably provided on one side of the serrated piece. The gate knife shears against the serrated piece. A third driving motor for driving the gate knife to rotate is provided on the swing arm. The output shaft of the swing motor is parallel to the axis of the fixed turntable. The second lifting mechanism is vertically arranged on one side of the axis of the repair drum.

[0010] Furthermore, at least one limiting opening is arranged on the outer peripheral surface of the grabbing plate.

[0011] Furthermore, the frame is provided with a driven wheel located below and between the two overlapping wheels, and the frame is provided with a third lifting mechanism for driving the driven wheel to rise and fall.

[0012] Furthermore, two opposite first electric push rods are arranged on the upper surface of the lifting block of the first lifting mechanism, a mechanical arm is arranged on the upper end of the frame, and a pre-twisted wire buckle is arranged on one side of the mechanical arm on the upper end of the frame.

[0013] Furthermore, a guide plate for guiding the ground wire to below the lap wheel is provided on the frame.

[0014] Furthermore, a hook is provided on the frame.

[0015] Furthermore, a sealing motor is arranged on the hook, and a sealing plate for sealing the opening of the hook is arranged on the output shaft of the sealing motor.

[0016] The significant beneficial effects achieved by the present invention are:

[0017] 1. This application uses a frame that can move on the ground wire to drive a rotating repair drum and a grabbing plate to rewind the loose ground wires. There is no need for workers to work at heights, and the work efficiency is high, which effectively solves the problem of low efficiency in current ground wire repair work.

[0018] 2. The setting of the winding mechanism can pre-fix the repaired ground wire, temporarily avoid the strands from being scattered again, and facilitate the subsequent installation of the pre-twisted wire.

[0019] 3. The driven wheel and the third lifting mechanism can be arranged to cooperate with the abutting wheel to firmly clamp the ground wire, so that the frame can move stably on the ground wire.

[0020] 4. The setting of hooks and sealing plates can facilitate the drone to hoist the rack and prevent the rack from detaching from the drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Attached Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Attached Figure 2 This is a schematic diagram of the structure of the first lifting mechanism of the present invention;

[0023] Attached Figure 3 This is a schematic diagram of the top view of the repair drum structure of the present invention;

[0024] Attached Figure 4 It is a left-side structural schematic diagram of the first electric push rod of the present invention;

[0025] Attached Figure 5 It is a rear perspective structural schematic diagram of the winding mechanism of the present invention;

[0026] Attached Figure 6 It is a left-side stereoscopic structural schematic diagram of the present invention;

[0027] Attached Figure 7 It is a schematic diagram of the rear-view stereoscopic structure of the frame in the present invention.

[0028] In the attached drawings, 1, frame; 2, first lifting mechanism; 3, fixed turntable; 4, repair drum; 5, grabbing plate; 6, second electric push rod; 7, first drive motor; 8, overlap wheel; 9, gear ring; 10, second drive motor; 11, gear; 12, second lifting mechanism; 13, swing motor; 14, swing arm; 15, turntable; 16, sawtooth; 17, knife; 18, third drive motor; 19, limit opening; 20, driven wheel; 21, third lifting mechanism; 22, first electric push rod; 23, mechanical arm; 24, pre-twisted wire buckle; 25, guide plate; 26, hook; 27, sealing motor; 28, sealing plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Example 1

[0031] like Figure 1-Figure 7As shown, a ground wire repair device comprises a frame 1 and a traveling overlap mechanism installed on the frame 1, wherein the traveling overlap mechanism is used to make the frame 1 walk on the ground wire;

[0032] Specifically, the frame 1 includes a bottom plate, a side plate and a top plate, four running wheels are installed at the bottom end of the bottom plate, the side plate is vertically installed at the rear side of the upper end of the bottom plate, and the top plate is horizontally installed at the upper end of the side plate and corresponds to the bottom plate;

[0033] A hook 26 is installed on the front side of the upper end of the top plate in the frame 1, and a sealing motor 27 is installed on the hook 26. A sealing plate 28 for closing the opening of the hook 26 is installed on the output shaft of the sealing motor 27. The sealing plate 28 is driven to rotate by the sealing motor 27 to close or open the opening of the hook 26; the hook 26 is arranged to be connected to a drone, so that the frame 1 can be hoisted to the ground wire in the air by the drone;

[0034] A guide plate 25 for guiding the ground wire to below the lap wheel 8 is installed at the upper end of the bottom plate of the frame 1. The guide plate 25 can be arranged so that when the frame 1 moves to the side of the ground wire, the ground wire can enter the lap wheel 8 along the guide plate 25.

[0035] The traveling overlap mechanism includes a first driving motor 7 and a overlap wheel 8. The first driving motor 7 is fixedly mounted on the rear side of the side plate in the frame 1. The overlap wheel 8 is rotatably connected to the front side of the side plate in the frame 1. The overlap wheel 8 is transmission-connected to the first driving motor 7. The number of the first driving motor 7 and the abutment wheel are both two, and the axes of the fixed turntable 3 are arranged in sequence. The overlap wheel 8 is located above the axis of the fixed turntable 3 and the axes of the two are perpendicular to each other.

[0036] A first lifting mechanism 2 is installed on one side of the frame 1 in the direction of travel, and a coaxial fixed turntable 3, a repairing drum 4 and a grabbing plate 5 are installed in sequence on the outer side of the lifting block of the first lifting mechanism 2 along the direction of travel of the frame 1;

[0037] The first lifting mechanism 2 is a vertically mounted linear slide, and the slider in the linear slide is a lifting block;

[0038] The fixed turntable 3, the repair drum 4 and the grabbing plate 5 are all annular and have a notch on the top that communicates with the interior;

[0039] The fixed turntable 3 is fixedly connected to the outside of the lifting block (that is, the side of the lifting block away from the frame 1), one end of the repair drum 4 is rotatably connected to the fixed turntable 3, and the grabbing plate 5 is fixedly connected to the end of the repair drum 4 away from the fixed turntable 3;

[0040] A gear ring 9 is installed on the outer side of one end of the repair drum 4 close to the first lifting mechanism 2, and a notch is provided on the gear ring 9 to match the repair drum 4. Two second drive motors 10 located on both sides of the lower part of the gear ring 9 are installed on the lifting block of the first lifting mechanism 2. The two second drive motors 10 are both connected to gears 11 meshing with the gear ring 9. The gear ring 9, the repair drum 4 and the grabbing plate 5 are driven to rotate on the fixed turntable 3 through the operation of the two second drive motors 10.

[0041] Two opposite second electric push rods 6 are installed on the repair drum 4, the telescopic ends of the two second electric push rods 6 are opposite to each other and the opposite surfaces of the telescopic ends are provided with semicircular grooves; the two first electric push rods 22 and the two second electric push rods 6 are located on both sides of the axis of the fixed turntable 3, and the telescopic directions of the two second electric push rods 6 are both toward the axis of the fixed turntable 3;

[0042] In this embodiment, at least one limiting opening 19 is provided on the outer circumference of the grabbing disc 5. The limiting opening 19 is used to grab the loose strands of the twisted wire on the ground wire so that it rotates with the repair drum 4 and is then rewound onto the ground wire.

[0043] Working principle: first, by hanging the hook 26 on the drone with a hanging ring, operate the drone to drive the frame 1 to move above the ground line, operate the drone to drive the frame 1 to move so that the guide plate 25 is above the ground line and operate the drone to drive the frame 1 to tilt and descend toward the ground line. Under the action of the guide plate 25, the ground line smoothly contacts the outer peripheral surface of the lap wheel 8. The frame 1 is now hung on the ground line, and the first drive motor 7 is operated to drive the lap wheel 8 to rotate so that the frame 1 moves to the repair position on the ground line. The lifting block of the first lifting mechanism 2 is operated to lift and lower so that the ground line enters the center of the fixed turntable 3, the repair drum 4 and the grabbing plate 5. At this time, the ground line coincides or approximately coincides with the axis of the fixed turntable 3; the two second electric push rods 6 on the repair drum 4 are operated to extend The contracted end is relatively close to the ground wire through the groove on the telescopic end to virtually clamp it, and the two second drive motors 10 are operated to rotate the repair drum 4, and the first drive motor 7 is operated to move the frame 1 toward the direction of the scattered ground wire. With the movement of the frame 1 and the rotation of the repair drum 4, the scattered ground wire is first grabbed by the grabbing plate 5 and enters the notch or opening of the grabbing plate 5. The scattered ground wire is first limited and guided by the grabbing plate 5. The grabbing plate 5 reduces the angle between the scattered ground wire and the ground wire to facilitate the repair of the two second electric push rods 6. With the rotation of the two second electric push rods 6 and the advancement of the repair drum 4, the scattered ground wire separated from the ground wire will gradually be re-entangled with the ground wire under the virtual embrace of the two second electric push rods 6 to complete the repair.

[0044] In combination with the above, the present application uses a frame 1 that can move on the ground wire to drive the rotating repair drum 4 and the grabbing plate 5 to rewind the loose ground wires. There is no need for workers to work at heights, and the work efficiency is high, which effectively solves the current problem of low efficiency in ground wire repair work.

[0045] Example 2

[0046] like Figure 1-Figure 7 As shown, the structure of this embodiment is substantially the same as that of embodiment 1. This embodiment is further optimized on the basis of embodiment 1. After the loose strands of the ground wire are driven by the two electric push rods to be rotated and rewound back into the ground wire, the broken position of the loose strands of the ground wire needs to be temporarily fixed to facilitate the subsequent installation of the pre-twisted wire.

[0047] In the present embodiment, a winding mechanism located at one side of the axis of the repair drum 4 is installed in the repair drum 4, and the winding mechanism is located between the second electric push rod 6 and the fixed turntable 3. The winding mechanism includes a second lifting mechanism 12, a swing motor 13 installed on the lifting block of the second lifting mechanism 12, a swing arm 14 perpendicular to the axis of the swing motor 13 is fixedly connected to the output shaft of the swing motor 13, a turntable 15 is rotatably connected to the output shaft of the swing motor 13, and an adhesive tape is installed on the turntable 15. A cross bar located above the turntable 15 and parallel to the output shaft of the swing motor 13 is fixedly connected to the upper end of the swing arm 14, a sawtooth piece 16 is installed on the cross bar, a gate knife 17 is rotatably installed on one side of the sawtooth piece 16, and the gate knife 17 is sheared with the sawtooth piece 16, and a third drive motor 18 for driving the gate knife 17 to rotate is installed on the swing arm 14, the output shaft of the swing motor 13 is parallel to the axis of the fixed turntable 3, and the second lifting mechanism 12 is vertically installed on one side of the axis of the repair drum 4;

[0048] Specifically, in the initial state, the swing motor 13 is located below one side of the axis of the repair drum 4, and a tape is fixed on the turntable 15, one end of the tape is bonded to the side of the gate knife 17 close to the sawtooth piece 16, and the bonding surface of the tape faces the axis of the repair drum 4;

[0049] After the repair drum 4 and the grabbing plate 5 rotate to rewind the loose strands of ground wire onto the ground wire, the second lifting mechanism 12 drives the swing motor 13 to rise and move the serrated blade 16 to one side of the axis of the repair drum 4. At this time, the bonding surface of the tape is located on the side of the repair drum 4, that is, the side of the ground wire. The swing motor 13 works to tilt the swing arm 14 toward the ground wire, and the bonding surface is bonded to the ground wire. The repair drum 4 rotates to drive the tape to be wound around the side of the broken position of the loose strands of ground wire for temporary fixation. During the tape winding process, the two second electric push rods 6 are always in a virtual hugging state with respect to the ground wire. After the tape is wound several times, the repair drum 4 returns to its initial position (the initial position is with the notch facing upward), and the third drive motor 1 8 works to drive the knife 17 to rotate and open to leave the sawtooth piece 16. At this time, the knife 17 and the sawtooth piece 16 are in a straight line. The swing motor 13 works to drive the swing arm 14 to return to its position. The second lifting mechanism 12 works to drive the swing motor 13 to descend so that the knife 17 is located on one side below the ground wire (that is, returns to the initial state). The swing motor 13 works to drive the swing arm 14 to make the sawtooth piece 16 contact with the back of the tape. The third drive motor 18 works to drive the knife 17 to rotate toward the sawtooth piece 16 and cooperate with the sawtooth piece 16 to complete the shearing of the tape. Due to the adhesive surface of the tape, after the knife 17 cuts the tape, the end of the tape will be adhered to the knife 17, which is convenient for the next winding work, and then the winding mechanism returns to the initial state.

[0050] In combination with the above, in this embodiment, a winding mechanism is provided to temporarily fix the position of the broken strand of the repaired ground wire, which is convenient for subsequent operations and does not require manual intervention, thereby further improving safety and work efficiency.

[0051] In order to further enable the frame 1 to move stably on the ground line, a driven wheel 20 located below the two overlapping wheels 8 is installed on the frame 1, and a third lifting mechanism 21 for driving the driven wheel 20 to move up and down is installed on the side plate of the frame 1. The third lifting mechanism 21 is a vertical linear slide, and the driven wheel 20 is rotatably connected to the lifting block of the third lifting mechanism 21;

[0052] After the frame 1 is overlapped with the ground wire, the third lifting mechanism 21 is operated to drive the driven wheel 20 to rise so that the driven wheel 20 abuts against the lower side of the ground wire. The driven wheel 20 and the two overlapping wheels 8 form a triangle to stably clamp the ground wire in turn, making it convenient for the frame 1 to move stably on the ground wire.

[0053] It should be noted that V-shaped annular grooves are provided on the outer circumferential surfaces of the driven wheel 20 and the two overlap wheels 8 to facilitate contact with the ground wire.

[0054] Example 3

[0055] As shown Figure 1-Figure 4 , Figure 6 and Figure 7As shown, the structure of this embodiment is roughly the same as that of embodiment 2. This embodiment is further optimized on the basis of embodiment 2. In order to facilitate the installation of the pre-twisted wire to the broken strand position and complete the ground wire repair work, two relative first electric push rods 22 are installed on the upper surface of the lifting block of the first lifting mechanism 2. The two first electric push rods 22 are relatively installed on the upper end of the lifting block. A V-shaped groove is provided on the telescopic end of one of the first electric push rods 22, and a V-shaped block adapted to the V-shaped groove is installed on the telescopic end of the other first electric push rod 22. The V-shaped block and the V-shaped groove are provided on the opposite side. Semicircular notches adapted to the ground wire are provided, and the ground wire is clamped and fixed by the relative movement of the two telescopic ends relative to the first electric push rods 22;

[0056] The telescopic ends of the two first electric push rods 22 face the axis of the fixed turntable 3;

[0057] A mechanical arm 23 is installed at the upper end of the frame 1, and a pre-twisted wire buckle 24 is installed at one side of the mechanical arm 23 at the upper end of the frame 1;

[0058] The pre-twisted wire buckle 24 is used to limit the pre-twisted wire, so as to facilitate fixing the pre-twisted wire on the frame 1, and the mechanical arm 23 is used to move the pre-twisted wire to the ground wire for winding;

[0059] The main function of the pre-twisted wire is to wrap the broken strands of the ground wire and the front and back positions of the ground wire for a certain length to ensure that the ground wire will not become loose again;

[0060] In this embodiment, a camera is installed on the robot arm 23 to facilitate the staff to check in real time whether the pre-twisted wire has moved into place;

[0061] After the winding mechanism temporarily winds and fixes the ground wire, operate the two second electric push rods 6 to return to the initial position, operate the first drive motor 7 to make the frame 1 a certain distance away from the broken strand position of the ground wire, and reserve the installation position of the pre-twisted wire. After operating the mechanical arm 23 to drive the end of the pre-twisted wire to move between the two first electric push rods 22, operate the two first electric push rods 22 to clamp and fix the end of the pre-twisted wire on the ground wire. At this time, the other end of the pre-twisted wire is located in the gap of the grabbing disk 5, and most of the pre-twisted wire is located in the annular fixed turntable 3 and the repair drum 4. After operating the second drive motor 10 to drive the repair drum 4 to rotate for several circles, operate the two first electric push rods 22 to release. To clamp the pre-twisted wire, operate the first drive motor 7 to drive the frame 1 to move along the wire. With the movement of the frame 1 and the rotation of the repair drum 4, the pre-twisted wire is gradually wound around the ground wire. During the movement of the frame 1, operate the two second electric push rods 6 to re-embrace the ground wire. With the movement of the frame 1 and the winding of the pre-twisted wire, the limiting capacity of the fixed turntable 3, the repair drum 4 and the grabbing plate 5 on the pre-twisted wire is gradually weakened. At this time, since the two second electric push rods 6 are clamped on the ground wire, the telescopic rods of the two second electric push rods 6 can continue to limit the pre-twisted wire, so that the pre-twisted wire is completely wound around the ground wire as the repair drum 4 rotates, completing the repair of the ground wire.

Claims

1. A ground wire repair device, characterized in that: The invention comprises a frame (1) and a travelling overlap mechanism arranged on the frame (1), wherein the travelling overlap mechanism is used to enable the frame (1) to travel on the ground line, a first lifting mechanism (2) is installed on one side of the travelling direction of the frame (1), a coaxial fixed turntable (3), a repair drum (4) and a grabbing plate (5) are arranged in sequence on the outer side of the lifting block of the first lifting mechanism (2), the fixed turntable (3), the repair drum (4) and the grabbing plate (5) are all annular and have a notch connected to the inside at the top, the repair drum (4) is rotatably connected to the fixed turntable (3), and two opposite second electric push rods (6) are arranged on the repair drum (4), and the two second electric push rods (6) are respectively located on both sides of the axis of the fixed turntable (3).

2. A ground wire repair device according to claim 1, characterized in that: The traveling overlap mechanism comprises a first driving motor (7) fixedly arranged on the frame (1) and a overlap wheel (8) rotatably connected to the frame (1); the first driving motor (7) is transmission-connected to the overlap wheel (8); the first driving motor (7) and the overlap wheel (8) are both two in number and are arranged in sequence along the axis of the fixed turntable (3); the overlap wheel (8) is located above the axis of the fixed turntable (3) and the axes of the two are perpendicular to each other.

3. A ground wire repair device according to claim 1, characterized in that: A gear ring (9) is arranged on the outer side of one end of the repair drum (4) close to the first lifting mechanism (2); two second drive motors (10) located on both sides of the gear ring (9) are arranged on the lifting block of the first lifting mechanism (2); and gears (11) meshing with the gear ring (9) are arranged on the two second drive motors (10); the two gears (11) can drive the gear ring (9) to rotate even when the gear ring (9) has a notch.

4. A ground wire repair device according to claim 1, characterized in that: The repair drum (4) is provided with a winding mechanism located on one side of its axis, the winding mechanism comprising a second lifting mechanism (12), a swing motor (13) arranged on a lifting block of the second lifting mechanism (12), a swing arm (14) fixedly arranged on the output shaft of the swing motor (13), a turntable (15) rotatably connected to the output shaft of the swing motor (13), a sawtooth piece (16) located above the turntable (15) and parallel to the output shaft of the swing motor (13) arranged on the upper end of the swing arm (14), a gate knife (17) rotatably arranged on one side of the sawtooth piece (16), the gate knife (17) shearing with the sawtooth piece (16), and a third driving motor (18) for driving the gate knife (17) to rotate arranged on the swing arm (14); the output shaft of the swing motor (13) is parallel to the axis of the fixed turntable (3), and the second lifting mechanism (12) is vertically arranged on one side of the axis of the repair drum (4).

5. A ground wire repair device according to claim 1, characterized in that: At least one limiting opening (19) is provided on the outer peripheral surface of the grabbing plate (5).

6. A ground line repair device according to claim 2, characterized in that: The frame (1) is provided with a driven wheel (20) located below and between the two overlapping wheels (8), and the frame (1) is provided with a third lifting mechanism (21) for driving the driven wheel (20) to move up and down.

7. A ground wire repair device according to claim 1, characterized in that: Two first electric push rods (22) are arranged opposite to each other on the upper surface of the lifting block of the first lifting mechanism (2), a mechanical arm (23) is arranged at the upper end of the frame (1), and a pre-twisted wire buckle (24) is arranged at the upper end of the frame (1) and on one side of the mechanical arm (23).

8. A ground line repair device according to claim 2, characterized in that: The frame (1) is provided with a guide plate (25) for guiding the ground wire to below the bridging wheel (8).

9. A ground line repair device according to claim 1, characterized in that: The frame (1) is provided with a hook (26).

10. A ground line repair device according to claim 9, characterized in that: The hook (26) is provided with a sealing motor (27), and the output shaft of the sealing motor (27) is provided with a sealing plate (28) for sealing the opening of the hook (26).