An emergency anti-dancing device for transmission line icing dancing

Abstract

This invention discloses an emergency anti-galling device for icing-induced power transmission lines, comprising a cable, a cable end limiting device, and an energy dissipation device. The cable spans and contacts the power transmission line. The cable end limiting device connects one end of the cable via a rope winder to restrict the movement of the corresponding end. The energy dissipation device connects the other end of the cable via a lead screw, and dissipates the kinetic energy generated by the cable's galloping due to the power transmission line through a flywheel mounted on the lead screw, a high-strength steel spring, and a damping medium within the energy dissipation device. This invention can reduce the amplitude of power transmission line galloping and effectively stop it. The entire device can be moved to different power transmission line areas as needed.

Description

Technical Field

[0001] This invention relates to the field of power transmission line anti-galling devices, specifically an emergency anti-galling device for power transmission lines icing and galloping. Background Technology

[0002] Icing and galloping on transmission lines is a serious hazard threatening the safe operation of the power grid. During freezing rain or wet snow in winter, uneven icing easily forms on the surface of transmission lines, altering their cross-sectional structure. When airflow passes over non-circular conductors, it generates periodic aerodynamic changes, inducing low-frequency, high-amplitude (ranging from several meters to over ten meters) self-excited vibrations in the transmission lines—the "galloping" phenomenon. This severe vibration can lead to phase-to-phase flashover tripping, hardware wear and breakage, conductor strand breakage, and even tower collapse, causing widespread power outages and enormous economic losses.

[0003] Current technologies for addressing ice-induced galloping hazards primarily employ a strategy of pre-installing anti-galloping devices on transmission lines, such as rotary clamp spacers, double-pendulum anti-galloping devices, and damping anti-galloping devices. These aim to suppress galloping by altering the aerodynamic characteristics of the transmission line or increasing system damping. However, this "pre-installed" approach has significant limitations: not all transmission line sections experience galloping annually, and full-line installation not only incurs high investment costs but also continuously increases the load on the towers.

[0004] Another existing method for dealing with icing and galloping disasters is to de-ice the transmission lines, including DC de-icing, manual de-icing, and mechanical de-icing. However, once an icing disaster occurs, multiple transmission lines in one or even several provinces are usually affected simultaneously. The limited de-icing equipment and devices cannot meet the needs of de-icing the entire line, posing a challenge to simultaneously addressing icing and galloping disasters affecting multiple transmission lines. Summary of the Invention

[0005] This invention provides an emergency anti-galling device for icing and galloping of transmission lines, which solves the problems of high cost, increased tower load, and difficulty in dealing with icing and galloping disasters on multiple transmission lines by existing technologies.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An emergency anti-galloping device for icing-induced power transmission lines includes: The cable (4) crosses the power transmission line (1) and comes into contact with the power transmission line (1) at the crossing point; A cable end limiting device is connected to one end of the cable (4) to limit the movement of the corresponding end of the cable (4) when the cable (4) swings with the power transmission line (1); The energy-consuming device is connected to the other end of the cable (4) and consumes the kinetic energy generated when the cable (4) swings with the power transmission line (1).

[0007] Furthermore, the energy-consuming device includes a rotating support (14), a first outer shell (13.1), a second outer shell (13.2), a lead screw (9), and a flywheel (11); the first outer shell (13.1) is open at one end and closed at the other end, and the closed end of the first outer shell (13.1) is rotatably mounted on the rotating support (14) via a rotating shaft; the second outer shell (13.2) is open at one end and closed at the other end, and the second outer shell (13.2) is coaxially slidably mounted in the first outer shell (13.1), and the closed end of the second outer shell (13.2) passes through the open end of the first outer shell (13.1) and is connected to the corresponding end of the cable (4) through the closed end of the second outer shell (13.2); The flywheel (11) is located inside the outer casing (13.2), and the flywheel (11) can only rotate inside the outer casing (13.2) and cannot slide linearly inside the outer casing (13.2); The lead screw (9) is located inside the outer casing (13.1). One end of the lead screw (9) is fixedly connected to the closed end of the outer casing (13.1), and the other end of the lead screw (9) is inserted into the outer casing (13.2) from the open end of the outer casing (13.2). The flywheel (11) is screwed and fitted onto the part of the lead screw (9) located inside the outer casing (13.2).

[0008] Furthermore, the energy-consuming device also includes a high-strength spring (12), which is located inside the outer shell (13.1). One end of the high-strength spring (12) is fixedly connected to the closed end of the outer shell (13.1), and the other end of the high-strength spring (12) is fixedly connected to the outer shell (2) (13.2).

[0009] Furthermore, in the energy-consuming device, both the outer casing 1 (13.1) and the outer casing 2 (13.2) are filled with damping medium (30).

[0010] Furthermore, the cable end limiting device includes a rope winder (23), with a section of the cable (4) starting from one end of the cable (4) wound around the winding shaft of the rope winder (23), and the corresponding end of the cable (4) fixed to the winding shaft of the rope winder (23).

[0011] Furthermore, it also includes a suspension clamp (3), which is clamped and fixed on the transmission line (1). The suspension clamp (3) is provided with a limiting clamp. The cable (4) crosses the suspension clamp (3) on the transmission line (1), and a section of the cable (4) at the crossing point is clamped in the limiting clamp of the suspension clamp (3) and in contact with the suspension clamp (3). The limiting clamp of the suspension clamp (3) limits the section of the cable (4) corresponding to the crossing point.

[0012] Furthermore, the cable (4) is made of a high tensile strength material.

[0013] Furthermore, the cable end limiting device and the energy dissipation device are respectively installed on different mobile vehicles.

[0014] Furthermore, at least one movable vehicle is equipped with an adjustable counterweight.

[0015] Furthermore, the adjustable counterweight includes a water tank (18) and a water pump (16). The weight of the water in the water tank (18) is changed by the water pump (16) to achieve adjustable configuration.

[0016] Before operation, the power transmission line is grounded, and a cable is pulled across the line by a drone. Then, a cable-end limiting device and an energy-dissipating device are connected to both ends of the cable. When the power transmission line gallops, the invention begins to operate. The cable-end limiting device restricts the movement of the corresponding end of the power transmission line, and the energy-dissipating device consumes the kinetic energy generated during the galloping, thereby reducing the amplitude of the galloping and stopping it. The entire device can be moved to different power transmission line areas as needed. Compared with existing technologies, the advantages of this invention are: 1. The energy dissipation device of the present invention is an inertial container damping energy dissipation device comprising a lead screw, ball bearings, a flywheel, a high-strength steel spring, a first outer shell, a second outer shell, and a damping medium. During the galloping of a power transmission line, it converts the kinetic energy of the line's movement transmitted from the cable into the rotational kinetic energy of the flywheel and the thermal energy of the high-strength steel spring. The frictional resistance between the damping medium and the flywheel and high-strength steel spring further dissipates the kinetic energy generated by the galloping. This energy dissipation device cleverly utilizes the conversion relationship between the axial tensile energy, the rotational mechanical energy of the flywheel, the thermal energy of the high-strength steel spring, and the frictional resistance of the damping medium during power transmission line galloping. Compared with traditional dampers, it reduces the galloping amplitude by several times or even more than ten times the energy of traditional energy dissipation dampers for the same weight.

[0017] 2. In this invention, the energy dissipation devices and cable end limiting devices at both ends of the cable are respectively installed on a movable vehicle, which can specifically be a vehicle. On the one hand, this invention avoids permanently occupying farmland; on the other hand, during emergency cessation of power line galloping, the movable vehicle can be moved as needed according to the change in the galloping wave peak position based on the change in the galloping mode order of the transmission line, making the cessation of galloping more effective. In addition, the device of this invention can be reused in multiple transmission line areas as needed, avoiding the problem that traditional emergency cessation devices can only be fixed in a specific location, and cannot be moved to the transmission line area requiring cessation of galloping when the transmission line in the local area is not galloping but the transmission line in other areas is galloping. Thus, it can flexibly cope with the disaster of icing and galloping of multiple transmission lines.

[0018] 3. The cable of the present invention is made of a high tensile strength material, preferably aramid. Aramid is insulating and can isolate the induced current caused by other high-voltage lines remaining on the transmission line. It is very light in weight and has high tensile strength, which is more conducive to the traction of UAVs.

[0019] 4. Traditional emergency anti-galloping devices fix the cable to the bottom of the conductor using insulator strings. The cable is non-removable, and the conductor always pulls on it when there is no galloping, requiring ground space, increasing land acquisition costs, affecting normal line operation during transmission, and increasing the risk of leakage during the summer rainy season. This invention uses a suspension clamp with a limiting clamp to fix the cable above it. It is only used when galloping occurs; when not galloping, the cable can be removed. This prevents the cable from shifting due to vibration during galloping, minimizes the impact on normal power transmission, and only the suspension clamp needs to be left when not in use, resulting in low investment and maintenance costs.

[0020] 5. In this invention, an adjustable counterweight is composed of a water tank and a water pump, and this adjustable counterweight is integrated onto a mobile vehicle. By adjusting the weight of the water in the water tank using the water pump, the overall counterweight of the mobile vehicle can be changed in real time. This design allows the mobile vehicle to flexibly adjust the counterweight according to different power transmission line models, galloping intensity, and terrain conditions, forming a mobile and adjustable counterforce device with wider applications and greater energy efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure during cable traction in an embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure during the actual operation of an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the installation structure of the first movable vehicle in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the suspension clamp structure in an embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of the damping structure in an embodiment of the present invention.

[0026] The markings in the diagram are as follows: Target power transmission line 1, UAV 2, Suspension clamp 3, Limit clamp 3.1, Cable 4, Roller strip 5, Fixing rod 6, Grounding wire 7, Connecting ring 8, Screw 9, Ball bearing 10, Flywheel 11, High-strength steel spring 12, Outer shell 1 13.1, Outer shell 2 13.2, Rotating support 14, Water inlet 15, Water pump 16, Motor 17, Water tank 18, Water 19, Water outlet 20, First movable carrier 21, Pulley 22, Rope winder 23, Support 24, Second movable carrier 25, Outer shell limiting block 26, Flywheel fixing sleeve 27, Ball bearing 28, Bearing sleeve 29, Damping medium 30. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, this embodiment discloses an emergency anti-galling device for icing and galloping of transmission lines, including a first movable carrier 21, a second movable carrier 25, a suspension clamp 3, an energy dissipation device, a cable end limiting device, and a cable 4.

[0029] In this embodiment, both the first mobile vehicle 21 and the second mobile vehicle 25 are vehicles. The energy-consuming device is installed on the first mobile vehicle 21, and the cable end restraint device is installed on the second mobile vehicle 25. The energy-consuming device and the cable end restraint device can be carried to the area where the target transmission line 1 is located via the first mobile vehicle 21 and the second mobile vehicle 25.

[0030] like Figure 4 As shown, in this embodiment, a pair of clamps are fixed on the suspension clamp 3, and the area between the two clamps forms a limiting clamping opening 3.1. The suspension clamp 3 is clamped and fixedly installed on the target transmission line 1. Before installation, the position of the node with the maximum amplitude of galloping on the target transmission line 1 is visually determined, and then the suspension clamp 3 is clamped and fixed at the node with the maximum amplitude of galloping, thus completing the installation of the suspension clamp 3. When the suspension clamp 3 is installed on the target transmission line 1, the central axis of the limiting clamping opening 3.1 is perpendicular to the central axis of the transmission line segment. The suspension clamp 3 can be pre-installed on the target transmission line 1 as needed, or it can be temporarily installed on the target transmission line 1 during the anti-galloping work. The suspension clamp 3 is made entirely of insulating material; or an insulating pad, such as a rubber pad, is provided at the contact position between the suspension clamp 3 and the conductor to provide both insulation and friction prevention.

[0031] In this embodiment, the cable 4 is made of a high tensile strength material, preferably aramid fiber. The aramid cable 4, woven from multiple strands of aramid filaments, is lightweight, high-strength, has excellent toughness, cut resistance, and wear resistance, making it suitable for emergency cessation of power transmission line galloping. During the cessation of galloping on the target power transmission line, the cable 4 crosses the suspension clamp 3 on the target power transmission line 1. At the crossing point, a section of the cable 4 is clamped in the limiting clamp 3.1 of the suspension clamp 3 and contacts the suspension clamp 3. When the target power transmission line 1 gallops, the cable 4 gallops accordingly. The limiting clamp 3.1 of the suspension clamp 3 limits the section of the cable 4 corresponding to the crossing point, restricting the cable 4 from sliding and shifting along the target power transmission line 1 during galloping, ensuring stable and reliable energy dissipation of the energy-consuming device during the cessation of galloping.

[0032] In this embodiment, the cable end limiting device includes a pulley 22, a support 24, and a rope winder 23. The support 24 is fixed to the second movable carrier 25, the pulley 22 is rotatably mounted on the support 24 via a horizontal pivot, and the rope winder 23 is fixed to the support 24. The pulley 22 allows the cable 4 to pass over it. After one end of the cable 4 passes over the pulley 22, a section of the cable 4 starting from the corresponding end is wound around the winding shaft of the rope winder 23, and the corresponding end of the cable 4 is fixed to the winding shaft of the rope winder 23. When the cable 4 swings, the corresponding end of the cable 4 will generate torque on the winding shaft of the rope winder 23. At this time, the rope winder 23 generates a torque in the opposite direction on the winding shaft, forming a reaction force on the corresponding end of the cable 4, thereby limiting the movement of the corresponding end of the cable 4. Furthermore, when not in operation, the cable 4 can be wound onto the winding shaft of the rope winder 23, and when in operation, the cable 4 can be released through the rope winder 23.

[0033] like Figure 5 As shown, in this embodiment, the energy-consuming device includes a first outer casing 13.1, a second outer casing 13.2, a lead screw 9, a flywheel 11, a flywheel fixing sleeve 27, a bearing sleeve 29, a high-strength steel spring 12, and a rotating support 14. The rotating support 14 is made of high-strength steel and is fixed on the first movable carrier 21.

[0034] In the energy-consuming device, the outer casing 13.1 is closed at one end and open at the other end. The closed end of the outer casing 13.1 is rotatably mounted on the rotating support 14 via a horizontal rotating shaft. Furthermore, the opening at the other end of the outer casing 13.1 is a reduced-diameter opening relative to the main body of the outer casing 13.1.

[0035] In the energy-consuming device, outer casing 2 13.2 is closed at one end and open at the other. The outer diameter of the main body of outer casing 2 13.2 matches the opening diameter of outer casing 1 13.1. Outer casing 2 13.2 is coaxially slidably installed inside outer casing 1 13.1, with the closed end of outer casing 2 13.2 protruding from the open end of outer casing 1 13.1, and the open end of outer casing 2 13.2 located inside outer casing 1 13.1, facing the closed end of outer casing 1 13.1. A casing limiting block 26 is fixed to the outer wall of outer casing 2 13.2 near the open end of outer casing 2 13.2. Thus, in this embodiment, outer casing 1 13.1 and outer casing 2 13.2 form a telescopic mechanism, and the sliding of outer casing 2 13.2 is limited by the casing limiting block 26.

[0036] In the energy-consuming device, a ball bearing 28 is installed inside the outer casing 13.2, with its outer ring coaxially fixed inside. A bearing sleeve 29, a flywheel retaining sleeve 27, and a flywheel 11 are all located inside the outer casing 13.2. The bearing sleeve 29 is coaxially fixed to the inner ring of the ball bearing 28. A section of the flywheel retaining sleeve 27 is coaxially fixed to the bearing sleeve 29, and the flywheel retaining sleeve 27 has a central threaded through hole. The flywheel 11 is coaxially fixed to the outer wall of the flywheel retaining sleeve 27 through its central through hole. Therefore, the flywheel 11, flywheel retaining sleeve 27, and bearing sleeve 29 can only rotate within the outer casing 13.2 and cannot slide linearly along the axial direction within the outer casing 13.2.

[0037] In the energy-consuming device, the lead screw 9 is disposed inside the outer casing 13.1. One end of the lead screw 9 is fixedly connected to the closed end of the outer casing 13.1, and the other end of the lead screw 9 passes through the open end of the outer casing 13.2. The flywheel fixing sleeve 27 is coaxially screwed onto the portion of the lead screw 9 located inside the outer casing 13.2 through its own central threaded through hole. Thus, the flywheel 11 is screwed onto the lead screw 9 through the flywheel fixing sleeve 27, and the flywheel 11, the flywheel fixing sleeve 27, and the lead screw 9 together form a lead screw and nut mechanism. A ball bearing 10 is provided in the threaded groove between adjacent helical lines on the wall of the central threaded through hole of the flywheel fixing sleeve 27, thereby forming a ball screw and nut mechanism with the flywheel fixing sleeve 27 and the lead screw 9.

[0038] In the energy-consuming device, a high-strength steel spring 12 is installed inside the outer casing 13.1. One end of the high-strength steel spring 12 is fixedly connected to the closed end of the outer casing 13.1, and the other end of the high-strength steel spring 12 is fixedly connected to the open end face of the outer casing 23.2.

[0039] In the energy-consuming device, both outer casing 13.1 and outer casing 2 13.2 are filled with damping medium 30.

[0040] In this embodiment, during the de-energizing operation, the closed end of the outer casing 13.2 in the energy-consuming device is connected to the other end of the cable 4 via a connecting ring 8. The connecting ring 8 is made entirely of high-strength alloy steel and includes two closed ring structures connected by a rotatable universal joint. One closed ring structure connects to the corresponding end of the cable 4, and the other closed ring structure connects to the closed end of the outer casing 13.2. The universal joint in the connecting ring 8 allows the cable 4 to automatically adjust its angle when subjected to multi-directional tension, preventing torque concentration that could cause structural damage.

[0041] When the cable 4 is subjected to reciprocating tension due to the galloping motion of the target transmission line 1, it pulls the outer casing 13.2, causing it to slide linearly. The flywheel 11 and flywheel fixing sleeve 27 inside the outer casing 13.2 then move together with it. Since one end of the lead screw 9 is fixedly connected to the closed end of the outer casing 13.1, the lead screw 9 remains stationary. Furthermore, because the lead screw 9 and the flywheel fixing sleeve 27 form a lead screw and nut mechanism, when the flywheel fixing sleeve 27 moves linearly relative to the lead screw 9, the flywheel fixing sleeve 27 and the flywheel 11 rotate as a whole under the action of the thread, thereby converting the axial tensile energy of the cable 4 into the rotational mechanical energy of the flywheel 11. Additionally, the linear sliding of the outer casing 13.2 causes the high-strength steel spring 12 to undergo tensile deformation. Through the elastic hysteresis effect of the spring material of the high-strength steel spring 12, the mechanical energy is converted into heat energy and dissipated, achieving the absorption and attenuation of the galloping energy of the target transmission line 1. Furthermore, both outer casing 13.1 and outer casing 2 13.2 are filled with damping medium 30. The flywheel 11 and the high-strength steel spring 12 generate frictional resistance with the damping medium during rotation and deformation, further increasing energy dissipation efficiency. Simultaneously, outer casings 13.1 and 13.2 provide protection, preventing external environmental factors from corroding and damaging the internal mechanisms. Compared to conventional dampers of the same weight, the energy dissipation device in this embodiment can dissipate and absorb energy several times or even ten times more.

[0042] In this embodiment, at least one of the first movable vehicle 21 and the second movable vehicle 25 is equipped with an adjustable counterweight. This embodiment will be described using the first movable vehicle 21 equipped with an adjustable counterweight as an example. Figure 3 As shown, the adjustable counterweight includes a water tank 18, a water pump 16, and a motor 17. The water tank 18 has an inlet 15 and an outlet 20, and is filled with water 19. The motor 17 drives the water pump 16. The outlet of the water pump 16 is connected to the inlet 15 of the water tank 18, and the inlet of the water pump 16 is used to connect to a water source. The outlet 20 of the water tank 18 leads to the external environment. Water from an external water source is pumped into the water tank 18 by the water pump 16, thereby changing the weight of the water in the water tank 18 and thus achieving adjustment of the counterweight configuration.

[0043] In this embodiment, the device is transported to the area where the target transmission line 1 is located using two mobile vehicles. After arriving at the area where the target transmission line 1 is located, the two mobile vehicles are fixed by a parking brake device to ensure the positional stability of the device in the working state, thus realizing the flexible deployment of the mobile emergency anti-dash device.

[0044] like Figure 1 As shown, before the anti-dash operation, the drone 2 pulls the cable 4 across the suspension clamp 3 on the target power transmission line 1, and the suspension clamp 3 limits the cable 4 to prevent displacement during the emergency anti-dash operation. A fixed crossbar is provided below the drone 2, and the cable 4 is fixed to the fixed bar 6 by the bracing 5. The fixed bar 6 is used to prevent the drone 2 from damaging its wings due to angular deviation during the pulling of the cable 4.

[0045] Furthermore, for safety reasons, before carrying out the anti-dance work, the target power transmission line 1 is grounded by setting up grounding wire 7 to ensure that the target power transmission line 1 is in a non-energized state and to ensure the safety of personnel and equipment during the operation.

[0046] One end of the grounding wire 7 is electrically connected to the target transmission line 1 to ensure that the potential of the target transmission line is always consistent with the ground when working near a live line or in an induced electric field environment.

[0047] like Figure 2 As shown, Figure 3 As shown, in this embodiment, when performing the anti-galloping operation, the corresponding end of the cable 4 is connected to the lead screw 9 of the energy dissipation device on the first moving vehicle 21 via the connecting ring 8. When the cable 4 moves and reciprocates with the galloping of the target transmission line 1, the energy dissipation device converts the axial tension energy of the cable 4 into the rotational mechanical energy of the flywheel 11, the heat dissipation of the high-strength steel spring 12, and the energy dissipation efficiency of the frictional resistance of the damping medium 30. At the same time, according to the galloping intensity of the target transmission line 1, the weight of the water 19 in the water tank 18 is adjusted, thereby realizing the emergency anti-galloping function.

[0048] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the scope or concept of the invention. The specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of the present invention, should also be considered as part of this disclosure. To avoid unnecessary repetition, the present invention will not further describe the various possible combinations.

[0049] This invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this invention and without departing from the design idea of ​​this invention, all modifications and improvements made by those skilled in the art to the technical solutions of this invention should fall within the protection scope of this invention. The technical content for which protection is sought in this invention has been fully described in the claims.

Claims

1. An emergency anti-galling device for icing-induced galloping on power transmission lines, characterized in that, include: The cable (4) crosses the power transmission line (1) and comes into contact with the power transmission line (1) at the crossing point; A cable end limiting device is connected to one end of the cable (4) to limit the movement of the corresponding end of the cable (4) when the cable (4) swings with the power transmission line (1); The energy-consuming device is connected to the other end of the cable (4) and consumes the kinetic energy generated when the cable (4) swings with the power transmission line (1).

2. The emergency anti-galling device for icing and galloping of transmission lines according to claim 1, characterized in that, The energy-consuming device includes a rotating support (14), a first outer shell (13.1), a second outer shell (13.2), a lead screw (9), and a flywheel (11); the first outer shell (13.1) is open at one end and closed at the other end, and the closed end of the first outer shell (13.1) is rotatably mounted on the rotating support (14) via a rotating shaft; the second outer shell (13.2) is open at one end and closed at the other end, and the second outer shell (13.2) is coaxially slidably mounted in the first outer shell (13.1), and the closed end of the second outer shell (13.2) passes through the open end of the first outer shell (13.1) and is connected to the corresponding end of the cable (4) through the closed end of the second outer shell (13.2); The flywheel (11) is located inside the outer casing (13.2), and the flywheel (11) can only rotate inside the outer casing (13.2) and cannot slide linearly inside the outer casing (13.2); The lead screw (9) is located inside the outer casing (13.1). One end of the lead screw (9) is fixedly connected to the closed end of the outer casing (13.1), and the other end of the lead screw (9) is inserted into the outer casing (13.2) from the open end of the outer casing (13.2). The flywheel (11) is screwed into the part of the lead screw (9) located inside the outer casing (13.2).

3. The emergency anti-galling device for icing and galloping of transmission lines according to claim 2, characterized in that, The energy-consuming device also includes a high-strength spring (12), which is located inside the outer shell (13.1). One end of the high-strength spring (12) is fixedly connected to the closed end of the outer shell (13.1), and the other end of the high-strength spring (12) is fixedly connected to the outer shell (2) (13.2).

4. The emergency anti-galling device for icing and galloping of transmission lines according to claim 2, characterized in that, In the energy-consuming device, both the outer shell 1 (13.1) and the outer shell 2 (13.2) are filled with damping medium (30).

5. The emergency anti-galling device for icing and galloping of transmission lines according to claim 1, characterized in that, The cable end limiting device includes a rope winder (23), with one end of the cable (4) wound around the winding shaft of the rope winder (23), and the corresponding end of the cable (4) fixed to the winding shaft of the rope winder (23).

6. An emergency anti-galling device for icing and galloping of transmission lines according to any one of claims 1-5, characterized in that, It also includes a suspension clamp (3), which is clamped and fixed on the transmission line (1). The suspension clamp (3) is provided with a limiting clamp. The cable (4) crosses the suspension clamp (3) on the transmission line (1), and a section of the cable (4) at the crossing point is clamped in the limiting clamp of the suspension clamp (3) and in contact with the suspension clamp (3). The limiting clamp of the suspension clamp (3) limits the section of the cable (4) corresponding to the crossing point.

7. An emergency anti-galling device for icing and galloping of transmission lines according to any one of claims 1-5, characterized in that, The cable (4) is made of a high tensile strength material.

8. An emergency anti-galling device for icing and galloping of transmission lines according to any one of claims 1-5, characterized in that, The cable end limiting device and the energy dissipation device are respectively installed on different mobile vehicles.

9. An emergency anti-galling device for icing and galloping of transmission lines according to claim 8, characterized in that, At least one mobile vehicle is equipped with an adjustable counterweight.

10. An emergency anti-galling device for icing and galloping of transmission lines according to claim 9, characterized in that, The adjustable counterweight includes a water tank (18) and a water pump (16). The weight of the water in the water tank (18) is changed by the water pump (16) to achieve adjustable configuration.

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