A three-phase synchronous grounding device for overhead lines and a grounding robot thereof

Abstract

The present invention discloses a three-phase synchronous grounding device for an overhead line and a grounding robot thereof, comprising a ground wire and a first rotating mechanism, wherein a first telescopic mechanism is provided at an output end of the first rotating mechanism, a first clamping portion that can be opened and closed is provided at an output end of the first telescopic mechanism, a second rotating mechanism is provided on one side of the first clamping portion, a second telescopic mechanism is provided at an output end of the second rotating mechanism, a second clamping portion that can be opened and closed is provided at an output end of the second telescopic mechanism, a first winder and a second winder are provided on the sides of the first clamping portion and the second clamping portion respectively, one end of the ground wire extends in sequence along the length direction of the first telescopic mechanism and the length direction of the second telescopic mechanism, and the rope body of the ground wire is wound around the first winder and the second winder respectively; through the above structure, grounding wire operation can be performed without the need for maintenance personnel to perform high-altitude operations, and the grounding wire processing of the distribution network line can be completed on the ground, which greatly reduces the operation risk and improves the working efficiency of the grounding wire.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment, and in particular to a three-phase synchronous grounding device for an overhead line and a grounding robot thereof. Background Art

[0002] When inspecting and repairing the distribution network lines, it is necessary to conduct electrical testing and grounding operations on the distribution network lines. When performing grounding operations on existing distribution network lines, maintenance workers need to climb onto the distribution network lines to hang the ground wires on the distribution network lines. It can be seen that the entire operation process is very dangerous, with the risk of falling from a height and electric shock, and there are great safety hazards.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a three-phase synchronous grounding device for overhead lines, which can autonomously perform ground wire mounting operations according to the layout of the distribution network lines, thereby reducing the operating risks of maintenance workers.

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

[0006] A three-phase synchronous grounding device for an overhead line includes a ground wire and a first rotating mechanism, wherein the output end of the first rotating mechanism is provided with a first telescopic mechanism, the output end of the first telescopic mechanism is provided with a first clamping portion that can be opened and closed, a second rotating mechanism is provided on one side of the first clamping portion, the output end of the second rotating mechanism is provided with a second telescopic mechanism, the output end of the second telescopic mechanism is provided with a second clamping portion that can be opened and closed, a first winder and a second winder are respectively provided on the sides of the first clamping portion and the second clamping portion, one end of the ground wire extends in sequence along the length direction of the first telescopic mechanism and the length direction of the second telescopic mechanism, and the rope body of the ground wire is respectively wound around the first winder and the second winder.

[0007] In the three-phase synchronous grounding device for overhead lines, the first telescopic mechanism includes a first set of rods, one end of the first set of rods is connected to the output end of the first rotating mechanism, a first telescopic rod is slidably connected inside the first set of rods, a first rolling conveying portion is provided on the first set of rods along its length direction, the first rolling conveying portion is transmission-connected to the first telescopic rod; one end of the first telescopic rod away from the first rotating mechanism is connected to the first clamping portion.

[0008] In the three-phase synchronous grounding device for overhead lines, the first rolling transmission part includes a first rolling motor and a first transmission belt. The first rolling motor is connected to the first rotating mechanism through a motor seat. A first rolling rod is provided in the motor seat, and the first rolling rod is transmission-connected to the first rolling motor; a first guide mechanism is provided on the end of the first sleeve rod away from the first rotating mechanism, and the two ends of the first transmission belt are respectively wound around the first rolling rod and the first guide mechanism; a first transmission groove connected to the belt body of the first transmission belt is provided on the first telescopic rod along its length direction.

[0009] In the three-phase synchronous grounding device for overhead lines, the second telescopic mechanism includes a second set of rods, one end of the second set of rods is connected to the output end of the second rotation mechanism, a second telescopic rod is slidably connected inside the second set of rods, a second rolling conveying portion is provided on the second set of rods along its length direction, and the second rolling conveying portion is transmission-connected to the second telescopic rod; one end of the second telescopic rod away from the second rotation mechanism is connected to the second clamping portion.

[0010] In the three-phase synchronous grounding device for overhead lines, the second rolling transmission part includes a second rolling motor and a second transmission belt, the second rolling motor is arranged on one side of the second rotating mechanism, and the second set of rods is provided with a second rolling rod at one end close to the second rotating mechanism, and the second rolling rod is transmission-connected to the second rolling motor; the second set of rods is provided with a second guide mechanism at one end away from the second rotating mechanism, and the two ends of the second transmission belt are respectively wound around the second rolling rod and the second guide mechanism; the second telescopic rod is provided with a second transmission groove connected to the belt body of the second transmission belt along its length direction.

[0011] In the three-phase synchronous grounding device for overhead lines, the structures of the first guide mechanism and the second guide mechanism are consistent; the first guide mechanism includes a sleeve frame, which is arranged on the periphery of the first sleeve rod, and the sleeve frame is rotatably connected along the length direction of the first sleeve rod to multiple ground wire guide rods for guiding the ground wire, and a guide channel is formed between all ground wire guide rods located on the same plane of the first sleeve rod; the first transmission belt is transmission-connected to any ground wire guide rod.

[0012] In the three-phase synchronous grounding device for overhead lines, the structures of the first clamping part and the second clamping part are consistent; the first clamping part includes a frame, a clamping opening is provided on the top of the frame, a first clamping block is provided on one side of the clamping opening, and a second clamping block is provided on the other side of the clamping opening, and the frame is provided with a transverse movement mechanism below the second clamping block, and the transverse movement mechanism is transmission-connected to the second clamping block.

[0013] In the three-phase synchronous grounding device for overhead lines, first in-place detection units are respectively provided at the openings of the clamping opening on both sides of the frame; a touch pressure frame that can be raised and lowered is provided on one side of the frame located between the first clamping block and the second clamping block, and a second in-place detection unit for detecting the in-place status of the touch pressure frame is provided on the touch pressure frame.

[0014] In the three-phase synchronous grounding device for overhead lines, the first rotating mechanism includes a rotating seat, in which a worm drive unit and a swing arm worm gear are respectively provided, the worm drive unit is transmission-connected to the swing arm worm gear, and one end of the first telescopic mechanism is connected to one side wheel surface of the swing arm worm gear; the second rotating mechanism includes a rotary joint, which is arranged on one side of the second clamping portion, and one end of the second telescopic mechanism is transmission-connected to the rotary joint.

[0015] The present invention also provides a grounding robot, which includes the above-mentioned overhead line three-phase synchronous grounding device.

[0016] Beneficial effects:

[0017] The present invention provides a three-phase synchronous grounding device for an overhead line. The first winder and the second winder can greatly reduce the difficulty of assembling the ground wire, so that the first clamping part and the second clamping part can share a ground wire, and there is no need to repeatedly hang multiple different ground wires, thereby reducing the load of the distribution network line; when the three-phase synchronous grounding device for the overhead line is pre-assembled, the first rotating mechanism, the first telescopic mechanism, the second rotating mechanism and the second telescopic mechanism are used to automatically adjust the swing angle and extension distance of the first clamping part and the second clamping part, so that the first clamping part and the second clamping part can gradually approach the corresponding target distribution network line, until the distribution network line is clamped into the first clamping part or the second clamping part, and then the distribution network line is closed and clamped, so that the distribution network line is also connected to the ground wire, thereby completing the grounding wire operation of the distribution network line; through the above method, there is no need for maintenance personnel to perform high-altitude operations, and the grounding wire processing of the distribution network line can be completed on the ground through the device, which greatly reduces the operation risk and also improves the work efficiency of the grounding wire operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the overall structure of the three-phase synchronous grounding device for overhead lines provided by the present invention;

[0019] Figure 2 Schematic diagram of the disassembled structure of the three-phase synchronous grounding device for overhead lines provided by the present invention Figure 1 ;

[0020] Figure 3 Schematic diagram of the disassembled structure of the three-phase synchronous grounding device for overhead lines provided by the present invention Figure 2 ;

[0021] Figure 4 Schematic diagram of the disassembled structure of the three-phase synchronous grounding device for overhead lines provided by the present invention Figure 3 ;

[0022] Figure 5 Schematic diagram of the disassembled structure of the three-phase synchronous grounding device for overhead lines provided by the present invention Figure 4 ;

[0023] Figure 6 This is a schematic structural diagram of the ground-based robot provided by the present invention.

[0024] Explanation of the main component symbols: 5-first rotating mechanism, 51-rotating seat, 52-worm drive part, 53-swing arm worm gear, 6-first telescopic mechanism, 61-first sleeve rod, 62-first telescopic rod, 63-first rolling transmission part, 64-first rolling motor, 65-first transmission belt, 66-motor seat, 67-first rolling rod, 68-first transmission groove, 69-first guide mechanism, 691-sleeve frame, 692-ground guide rod, 7-first clamping part, 71-frame, 72-clamping opening, 73-first clamping block, 74-second clamping block, 75-transverse movement mechanism, 76-first in-position detection unit, 77-touch pressure frame, 78-second in-position detection unit, 8-second rotating mechanism, 81-rotating joint, 9-second telescopic mechanism, 10-second clamping part, 101-first winder, 102-second winder, 100-winch device. DETAILED DESCRIPTION

[0025] The present invention provides a three-phase synchronous grounding device for overhead lines and a grounding robot thereof. To clarify the objectives, technical solutions, and effects of the present invention, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention.

[0026] In the description of the present invention, it should be understood that the terms "middle," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the drawings and are intended solely to facilitate and simplify the description of the present invention. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0027] See also Figures 1 to 6The present invention provides a three-phase synchronous grounding device for an overhead line, comprising a ground wire and a first rotating mechanism 5, wherein the output end of the first rotating mechanism 5 is provided with a first telescopic mechanism 6, the output end of the first telescopic mechanism 6 is provided with a first clamping portion 7 that can be opened and closed, a second rotating mechanism 8 is provided on one side of the first clamping portion 7, the output end of the second rotating mechanism 8 is provided with a second telescopic mechanism 9, the output end of the second telescopic mechanism 9 is provided with a second clamping portion 10 that can be opened and closed, a first winder 101 and a second winder 102 are respectively provided on the sides of the first clamping portion 7 and the second clamping portion 10, one end of the ground wire extends in sequence along the length direction of the first telescopic mechanism 6 and the length direction of the second telescopic mechanism 9, and the rope body of the ground wire is respectively wound around the first winder 101 and the second winder 102.

[0028] In actual application, the staff will test the electricity of each distribution network line in advance with a test rod. When the test is correct, the ground wire will be laid in advance along the length direction of the first telescopic mechanism 6. After reaching the first winder 101, at least part of the ground wire rope will be wound around the first winder 101, so that the first clamping part 7 is connected to the ground wire. Subsequently, the ground wire will be laid along the length direction of the second telescopic mechanism 9, and the end of the ground wire will be tied to the second winder 102, so that the second clamping part 10 is also connected to the ground wire. In this way, the assembly difficulty of the three-phase synchronous grounding device of the overhead line is greatly reduced, and there is no need to repeatedly hang multiple different ground wires, thereby reducing the load of the distribution network line. When the three-phase synchronous grounding device of the overhead line is pre-installed, it is respectively Adjust the swing angle and extension distance of the first clamping part 7 so that the first clamping part 7 gradually approaches any distribution network line until the distribution network line is clamped into the first clamping part 7. At the same time, the first clamping part 7 closes and clamps the distribution network line so that the distribution network line is connected to the ground wire. Then the second rotating mechanism 8 and the second telescopic mechanism 9 drive the second clamping part 10 to approach the adjacent distribution network line until the distribution network line is clamped into the second clamping part 10, and the second clamping part 10 closes and clamps the distribution network line so that the distribution network line is also connected to the ground wire, thereby completing the grounding operation of the distribution network line. Through the above method, there is no need for maintenance personnel to perform high-altitude operations. The grounding wire processing of the distribution network line can be completed by using the device on the ground, which greatly reduces the operation risk and improves the work efficiency of the grounding operation.

[0029] In this embodiment, a winding channel is set in the first winding device 101 and the second winding device 102, and a plurality of winding openings connected to the winding channel are set on the side walls of the first winding device 101 and the second winding device 102; when in use, the ground wire enters the winding channel from any winding opening, then passes out from the adjacent winding opening, and then re-enters the winding channel from the other adjacent winding opening, and is repeatedly wound according to the above steps, so that the ground wire is wound on the first winding device 101 or the second winding device 102.

[0030] like Figures 1 to 6 As shown, further, the first telescopic mechanism 6 includes a first set of rods 61, one end of the first set of rods 61 is connected to the output end of the first rotating mechanism 5, and a first telescopic rod 62 is slidably connected inside the first set of rods 61, and a first rolling conveying part 63 is provided on the first set of rods 61 along its length direction, and the first rolling conveying part 63 is transmission-connected to the first telescopic rod 62; the end of the first telescopic rod 62 away from the first rotating mechanism 5 is connected to the first clamping part 7; when in use, the first telescopic rod 62 is driven by the first rolling conveying part 63 to perform a linear sliding action along the length direction of the first set of rods 61, thereby adjusting the extension amount of the first clamping part 7 in the radial direction, and then adjusting the contact distance between the first clamping part 7 and the distribution network line.

[0031] like Figures 1 to 6 As shown, further, the first rolling conveyor 63 includes a first rolling motor 64 and a first transmission belt 65, the first rolling motor 64 is connected to the first rotating mechanism 5 through a motor seat 66, a first rolling rod 67 is provided in the motor seat 66, and the first rolling rod 67 is transmission-connected to the first rolling motor 64; the first sleeve rod 61 is provided with a first guide mechanism 69 at one end away from the first rotating mechanism 5, and the two ends of the first transmission belt 65 are respectively wound around the first rolling rod 67 and the first guide mechanism 69; the first telescopic rod 62 is provided with a first transmission belt 65 along its length direction. The first transmission groove 68 of the belt body is connected; when in use, the first rolling motor 64 drives the first transmission belt 65 to roll between the first rolling rod 67 and the first guide mechanism 69 through the first rolling rod 67, so that the first telescopic rod 62 makes a linear sliding motion along the belt surface of the first transmission belt 65. Under the guidance of the first set of rods 61, the first telescopic rod 62 slides along the length direction of the first set of rods 61 to adjust the distance between the first clamping portion 7 and the distribution network line. In this way, the stability of the first telescopic rod 62 during telescoping can be improved, and the problem of left and right deviation of the first telescopic rod 62 during telescoping can be avoided, making the entire transmission process smoother.

[0032] like Figures 1 to 6As shown, further, the second telescopic mechanism 9 includes a second set of rods, one end of the second set of rods is connected to the output end of the second rotating mechanism 8, a second telescopic rod is slidably connected inside the second set of rods, and a second rolling conveying part is provided on the second set of rods along its length direction, and the second rolling conveying part is transmission-connected to the second telescopic rod; one end of the second telescopic rod away from the second rotating mechanism 8 is connected to the second clamping part 10; when in use, the second telescopic rod is driven by the second rolling conveying part to perform a linear sliding action along the length direction of the second set of rods, thereby adjusting the extension amount of the second clamping part 10 in the radial direction, and then adjusting the contact distance between the second clamping part 10 and the distribution network line.

[0033] like Figures 1 to 6 As shown, further, the second rolling conveying part includes a second rolling motor and a second transmission belt, the second rolling motor is arranged on one side of the second rotating mechanism 8, and the second set of rods is provided with a second rolling rod at one end close to the second rotating mechanism 8, and the second rolling rod is transmission-connected to the second rolling motor; the second set of rods is provided with a second guide mechanism at one end away from the second rotating mechanism 8, and the two ends of the second transmission belt are respectively wound around the second rolling rod and the second guide mechanism; the second telescopic rod is provided with a second transmission groove connected to the belt body of the second transmission belt along its length direction; when in use, the second rolling motor drives the second transmission belt to roll between the second rolling rod and the second guide mechanism through the second rolling rod, so that the second telescopic rod makes a linear sliding motion along the belt surface of the second transmission belt, and under the guiding action of the second set of rods, the second telescopic rod slides along the length direction of the second set of rods to adjust the distance between the second clamping part 10 and the distribution network line. In this way, the stability of the second telescopic rod during telescoping can be improved, the problem of left and right offset of the second telescopic rod during telescoping can be avoided, and the entire transmission process can be smoother.

[0034] It should be noted that the first rolling motor 64 and the second rolling motor are existing motor structures, and their specific structures and working principles are all existing technologies, which will not be described in detail here.

[0035] like Figures 1 to 6As shown, further, the structures of the first guiding mechanism 69 and the second guiding mechanism are consistent; the first guiding mechanism 69 includes a sleeve 691, and the sleeve 691 is arranged on the periphery of the first sleeve rod 61, and a plurality of ground wire guide rods 692 for guiding the ground wire are rotatably connected to the sleeve 691 along the length direction of the first sleeve rod 61, and a guide channel is formed between all the ground wire guide rods 692 located on the same plane of the first sleeve rod 61; the first transmission belt 65 is transmission-connected to any ground wire guide rod 692; when in use, the rotatable ground wire guide rod 692 is used to roll and guide the first transmission belt 65, so that the first transmission belt 65 can maintain a stable rolling state in the first sleeve rod 61, and the ground wire is rolling along the first sleeve rod 61. When one set of rods 61 and the second set of rods are laid in the length direction, when the ground wire passes through the first guide mechanism 69 or the second guide mechanism, the rope body of the ground wire is partially inserted into the guide channel, and each ground wire guide rod 692 is used to guide the ground wire so that the ground wire will not be intertwined with the first telescopic mechanism 6 or the second telescopic mechanism 9 during operation, thereby improving the stability and safety of the device during use; in addition, the rope body of the ground wire can also be wound around each ground wire guide rod 692 in turn, so that the ground wire is wound and positioned on the first guide mechanism 69 or the second guide mechanism, thereby improving the firmness of the ground wire binding on the first telescopic mechanism 6 and the second telescopic mechanism 9, and preventing the problem of partial rope body of the ground wire being detached from the first telescopic mechanism 6 or the second telescopic mechanism 9.

[0036] like Figures 1 to 6 As shown, further, the structures of the first clamping part 7 and the second clamping part 10 are consistent; the first clamping part 7 includes a frame 71, and a clamping opening 72 is provided on the top of the frame 71, and a first clamping block 73 is provided on one side of the clamping opening 72, and a second clamping block 74 is provided on the other side of the clamping opening 72, and the frame 71 is provided with a transverse movement mechanism 75 below the second clamping block 74, and the transverse movement mechanism 75 is transmission-connected to the second clamping block 74; when in use, the transverse movement mechanism 75 is used to control the second clamping block 74 to make a relative sliding movement toward the first clamping block 73, so as to realize the opening and closing action of the clamping opening 72, so that the clamping opening 72 can clamp and release the distribution network line.

[0037] It should be noted that the transverse movement mechanism 75 is an existing transverse movement module structure, and its specific structure and working principle are all existing technologies and will not be described in detail here.

[0038] like Figures 1 to 6As shown, further, first in-place detection units 76 are respectively provided at the openings of the clamping openings 72 on both sides of the frame 71; a touch-pressure frame 77 that can be lifted up and down is provided on one side of the frame 71 between the first clamping block 73 and the second clamping block 74, and a second in-place detection unit 78 for detecting the in-place status of the touch-pressure frame 77 is provided on the touch-pressure frame 77; when working, the first in-place detection unit 76 is used to pre-detect the in-place status of the upper distribution network line to feedback control the working condition of the first telescopic mechanism 6 or the second telescopic mechanism 9, and to make the first clamping mechanism or the second clamping mechanism move forward. When the locking cam 77 is in the closed position, the locking cam 77 is in the closed position, and the second locking cam 77 is in the closed position, so that the second locking cam 77 is in the open position, and the second locking cam 77 is in the closed position, so that the second locking cam 77 is in the closed ...

[0039] It should be noted that the first in-position detection unit 76 and the second in-position detection unit 78 can be sensors with a position detection function, such as position sensors and infrared sensors.

[0040] like Figures 1 to 6 As shown, further, the first rotating mechanism 5 includes a rotating base 51, and a worm drive part 52 and a swing arm worm gear 53 are respectively provided in the rotating base 51, the worm drive part 52 is transmission-connected to the swing arm worm gear 53, and one end of the first telescopic mechanism 6 is connected to one side wheel surface of the swing arm worm gear 53; the second rotating mechanism 8 includes a rotary joint 81, and the rotary joint 81 is arranged on one side of the second clamping part 10, and one end of the second telescopic mechanism 9 is transmission-connected to the rotary joint 81; when in use, the worm drive part 52 drives the first telescopic mechanism 6 to perform a swing arm motion by driving the swing arm worm gear 53, and the stability of the first telescopic mechanism 6 during swinging is effectively improved by the worm gear structure. In addition, the second telescopic mechanism 9 performs a swing arm motion under the action of the rotary joint 81, so as to adjust the distance between the second clamping part 10 and the distribution network line.

[0041] In summary, the use of the first winder 101 and the second winder 102 can greatly reduce the difficulty of assembling the ground wire, so that the first clamping part 7 and the second clamping part 10 can share a ground wire, and there is no need to repeatedly hang multiple different ground wires, thereby reducing the load on the distribution network line; when the three-phase synchronous grounding device of the overhead line is pre-installed, the first rotating mechanism 5, the first telescopic mechanism 6, the second rotating mechanism 8 and the second telescopic mechanism 9 are used to automatically adjust the swing angle and extension distance of the first clamping part 7 and the second clamping part 10, so that the first clamping part 7 and the second clamping part 10 can gradually approach the corresponding target distribution network line, until the distribution network line is clamped into the first clamping part 7 or the second clamping part 10, the distribution network line is closed and clamped, so that the distribution network line is also connected to the ground wire, thereby completing the grounding wire operation of the distribution network line; through the above method, there is no need for maintenance personnel to perform high-altitude operations, and the grounding wire processing of the distribution network line can be completed by using the device on the ground, which greatly reduces the operation risk and also improves the work efficiency of the grounding wire operation.

[0042] like Figure 6 As shown, the present invention also provides a grounding robot, including the above-mentioned three-phase synchronous grounding device for overhead lines and a hoisting device 100 for driving the three-phase synchronous grounding device for overhead lines to climb the distribution network line.

[0043] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A three-phase synchronous grounding device for overhead lines, characterized in that: The cam is a unit that can be mounted on a rack of at least one of the wheels of the vehicle, and the cam has a first end for holding the vehicle in a direction of rotation and a second end for holding the vehicle in a direction of rotation thereof. One end of a rotating mechanism is connected to the first clamping part; the first rolling transmission part includes a first rolling motor and a first transmission belt, the first rolling motor is connected to the first rotating mechanism through a motor seat, and a first rolling rod is provided in the motor seat, and the first rolling rod is transmission-connected to the first rolling motor; a first sleeve rod is sleeved with a first guide mechanism at one end of the first sleeve away from the first rotating mechanism, and the two ends of the first transmission belt are respectively wound around the first rolling rod and the first guide mechanism; a first transmission groove connected to the belt body of the first transmission belt is provided on the first telescopic rod along its length direction; the first rotating mechanism includes a rotating seat, a worm drive part and a swing arm worm gear are respectively provided in the rotating seat, and the worm drive part is transmission-connected to the swing arm worm gear, and one end of the first telescopic mechanism is connected to one side wheel surface of the swing arm worm gear; the second rotating mechanism includes a rotating joint, the rotating joint is arranged on one side of the second clamping part, and one end of the second telescopic mechanism is transmission-connected to the rotating joint.

2. The three-phase synchronous grounding device for overhead lines according to claim 1, characterized in that: The second telescopic mechanism includes a second set of rods, one end of the second set of rods is connected to the output end of the second rotation mechanism, a second telescopic rod is slidably connected inside the second set of rods, a second rolling conveying part is provided on the second set of rods along its length direction, and the second rolling conveying part is transmission-connected to the second telescopic rod; one end of the second telescopic rod away from the second rotation mechanism is connected to the second clamping part.

3. The three-phase synchronous grounding device for overhead lines according to claim 2, characterized in that: The second rolling conveying part includes a second rolling motor and a second transmission belt. The second rolling motor is arranged on one side of the second rotating mechanism. The second set of rods is located at one end close to the second rotating mechanism and is provided with a second rolling rod. The second rolling rod is transmission-connected to the second rolling motor; the second set of rods is provided with a second guide mechanism at one end away from the second rotating mechanism, and the two ends of the second transmission belt are respectively wound around the second rolling rod and the second guide mechanism; the second telescopic rod is provided with a second transmission groove connected to the belt body of the second transmission belt along its length direction.

4. The three-phase synchronous grounding device for overhead lines according to claim 3, characterized in that: The structures of the first guide mechanism and the second guide mechanism are consistent; the first guide mechanism includes a sleeve frame, which is arranged on the periphery of the first sleeve rod, and the sleeve frame is rotatably connected along the length direction of the first sleeve rod to multiple ground wire guide rods for guiding the ground wire, and a guide channel is formed between all ground wire guide rods located on the same plane of the first sleeve rod; the first transmission belt is transmission-connected to any ground wire guide rod.

5. The three-phase synchronous grounding device for overhead lines according to claim 1, characterized in that: The structures of the first clamping part and the second clamping part are consistent; the first clamping part includes a frame, a clamping opening is provided on the top of the frame, a first clamping block is provided on one side of the clamping opening, and a second clamping block is provided on the other side of the clamping opening, and the frame is provided with a transverse movement mechanism below the second clamping block, and the transverse movement mechanism is transmission-connected to the second clamping block.

6. The three-phase synchronous grounding device for overhead lines according to claim 5, characterized in that: A first in-place detection unit is respectively provided on both sides of the frame at the openings of the clamping opening; a touch pressure frame that can be raised and lowered is provided on one side of the frame between the first clamping block and the second clamping block, and a second in-place detection unit is provided on the touch pressure frame for detecting the in-place status of the touch pressure frame.

7. A ground-based robot, characterized in that: It comprises the overhead line three-phase synchronous grounding device as described in any one of claims 1-6.

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