Stiffness-flexibility combined type multiple energy dissipation self-resetting sub-conductor spacer and energy dissipation method

Abstract

The application belongs to the technical field of electric power engineering. A rigid-flexible combined multiple energy dissipation self-resetting sub-conductor spacer rod and energy dissipation method are provided. The application utilizes the linkage structure of the wire clamp protection assembly, the transmission rod assembly and the center energy dissipation assembly, and is matched with the double center assembly, the magnetic flow cavity magnetic fluid, the regular polygon energy dissipation flywheel and the circumferential distribution elastic piece flywheel resetter to solve the problems of single structure of the traditional spacer rod, inability to synchronously realize efficient energy dissipation and autonomous reset, overcome the functional limitations of single component, fix the center energy dissipation assembly stability through the positioning ear flexible cable, improve the split conductor spacing control precision and energy dissipation efficiency, avoid the collision of the sub-conductor and the deviation of the core component, and provide structural support for the safe operation of the power transmission line under complex working conditions.

Description

Technical Field

[0001] This invention relates to the field of power engineering technology, and in particular to a rigid-flexible multi-energy-dissipating self-resetting conductor spacer and energy dissipation method. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] Currently, the construction scale of ultra-long-distance overhead transmission lines is continuously expanding. To improve power transmission efficiency and reduce energy loss during transmission, UHV overhead transmission lines widely adopt split conductor technology. This technology, by combining and arranging multiple sub-conductors, effectively increases the equivalent conductive cross-sectional area of ​​the conductor, reduces corona loss and line impedance, and meets the needs of large-scale, long-distance power transmission. The application of split conductors has not only promoted the upgrading of transmission technology but also provided important support for ensuring energy security and promoting the consumption of clean energy, becoming a key technical form in modern high-voltage transmission systems.

[0004] However, traditional spacers used in existing transmission lines have significant technical limitations when dealing with complex operating conditions. The structural design of traditional spacers is relatively simple, lacking multifunctional components that work in tandem, making it difficult to achieve a harmonious combination of efficient energy dissipation and reliable reset. Some spacers rely solely on a single energy dissipation method, failing to adequately dissipate the energy generated by conductor galloping, resulting in excessive relative motion amplitude between sub-conductors. Insufficient protection design in the clamp section makes it difficult to alleviate stress concentration during conductor vibration, easily causing conductor wear. Furthermore, the lack of a well-structured central energy dissipation component to cooperate with the transmission components makes it impossible to adapt to vibrations of varying intensities through efficient energy dissipation mechanisms such as magnetorheology, and the poor reset performance makes it difficult to quickly return to the initial posture. These problems prevent traditional spacers from effectively maintaining the spacing stability of the split conductors, easily leading to risks such as hardware fatigue and conductor strand breakage, thus hindering the safe and stable operation of transmission lines. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer and an energy dissipation method, which improves the reliability of transmission line spacers under complex operating conditions, significantly reduces the relative motion amplitude between split conductor sub-conductors, controls the conductors within a safe threshold, and improves the safety of transmission lines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a rigid-flexible multi-energy-dissipating self-resetting conductor spacer.

[0008] A rigid-flexible multi-energy-dissipating self-resetting conductor spacer includes: a clamp protection component, a transmission rod component, and a central energy-dissipating component. The clamp protection component is connected to the central energy-dissipating component through the transmission rod component.

[0009] The central energy-consuming component includes: a core transmission rod and two central components with the same structure and arranged in opposite positions. The central components include a core shell, a first magnetizing plate, a second magnetizing plate, a core shaft, a core transmission wheel, a magnetofluid cavity, an energy-consuming flywheel, and a flywheel resetter.

[0010] The first and second magnetic plates with the same structure are positioned opposite each other, and a core shell is arranged around them to form the inner cavity of the central component. A central shaft is provided at the center of the inner cavity, and an energy-consuming flywheel is connected to the central shaft. The outer wall of the energy-consuming flywheel forms a magnetofluid cavity between the core shell, the first magnetic plate, and the second magnetic plate. The magnetofluid cavity contains magnetofluid. The energy-consuming flywheel is connected to the inner wall of the core shell through a flywheel resetter.

[0011] The core drive rod is connected to the drive rod assembly, the core drive rod is connected to the core shaft, one end of the core shaft is connected to the core drive wheel of a central assembly, and the other end of the core shaft is connected to the core drive wheel of another central assembly.

[0012] In one implementation of the first aspect of the present invention, both the first and second magnetic plates are circular, and the first and second magnetic plates are connected with the core shell to form a cylindrical inner cavity.

[0013] In one implementation of the first aspect of the present invention, the flywheel resetter is a plurality of elastic elements uniformly connected along the circumferential direction of the core drive wheel, and each elastic element is connected to the inner wall of the core shell.

[0014] In one implementation of the first aspect of the present invention, a plurality of positioning ears are uniformly arranged along the circumferential direction on the outer wall of the core shell, and the positioning ears are connected to the wire clamp protection component by a flexible cable.

[0015] In one implementation of the first aspect of the present invention, the radial cross section of the energy-consuming flywheel perpendicular to the central axis is a regular polygon.

[0016] In one implementation of the first aspect of the present invention, the wire clamp protection assembly includes: a mounting collar, a mounting pad, a wire clamp housing, an outer buffer pad, a limiting baffle, an extended rubber pad, a gas spring collar, an inner buffer pad, a reserved power transmission line cavity, and a wire clamp connecting ear.

[0017] The inner buffer pad is a cylindrical shape with open ends to form a cavity for the reserved transmission line. The outer buffer pad is sleeved on the outside of the inner buffer pad, and the gap between the outer buffer pad and the inner buffer pad forms a gas spring collar. The gap between the outer buffer pad and the inner buffer pad is connected to a limit baffle.

[0018] The extended rubber pad includes a first extended rubber pad and a second extended rubber pad. The first extended rubber pad is arranged on one side of the gap, and the second extended rubber pad is arranged on the other side of the gap. The mounting collar is fitted on the outer side of the outer buffer pad layer, and a wire clamp connecting ear is fixed on the mounting collar. The edges of the semi-flexible first extended rubber pad, second extended rubber pad, inner buffer pad layer and outer buffer pad layer all have a certain curvature.

[0019] As a further limitation of the first aspect of the present invention, the transmission rod assembly includes: a first transmission rod, a second transmission rod, a transmission housing, a first transmission rod limiting baffle, a second transmission rod limiting baffle, a return spring, and a viscous cavity;

[0020] The first end of the first transmission rod and the first end of the second transmission rod are inserted into the transmission housing at opposite positions, and a return spring is connected between the first end of the first transmission rod and the first end of the second transmission rod. The first transmission rod limiting baffle and the second transmission rod limiting baffle are arranged inside the transmission housing. The two ends of the transmission housing are sealed to form a viscous cavity, and the viscous cavity is filled with viscous liquid.

[0021] As a further limitation of the first aspect of the present invention, the second end of the first transmission rod is provided with a first transmission rod connecting ear, the second end of the second transmission rod is provided with a second transmission rod connecting ear, and the first transmission rod connecting ear and the wire clamp connecting ear are fixedly connected by bolts;

[0022] The core drive rod is provided with a core drive rod connecting ear, and the second drive rod connecting ear is fixedly connected to the core drive rod connecting ear by bolts. The first end of the first drive rod is connected to a first spiral plug, and the second end of the second drive rod is connected to a second spiral plug. Both the first spiral plug and the second spiral plug are inserted into the viscous cavity.

[0023] As a further limitation of the first aspect of the present invention, the first transmission rod and the second transmission rod are embedded with magnetic elements, and an induction coil is arranged inside the transmission housing. When the first transmission rod and the second transmission rod move relative to the transmission housing, an induced current is generated. The first magnetizing plate and the second magnetizing plate are both built with electromagnetic coils. The electromagnetic coils use the current generated by the induction coil in the transmission housing to generate magnetism and change the properties of the magnetorheological fluid.

[0024] Secondly, the present invention provides a multi-energy dissipation method that combines rigidity and flexibility.

[0025] A rigid-flexible multi-energy dissipation method, utilizing the rigid-flexible multi-energy dissipation self-resetting conductor spacer of the first aspect of the present invention, includes the following process:

[0026] When subjected to external forces, the power line vibrates and produces a certain arc. The inner part of the clamp is compressed, and the inner buffer pad is deformed by the power line and further compresses the gas spring collar. The deformed gas spring collar pushes the extended rubber pads on both sides to move outward along the gap formed by the inner and outer buffer pads to support the power line.

[0027] When external forces are transmitted to the online clamp protection component via the first transmission rod, the first transmission rod and the second transmission rod move toward each other in the viscous cavity. Under the squeezing action, the viscous liquid in the cavity flows through the gap between the transmission housing and the first and second screw plugs.

[0028] When the action is transmitted to the core transmission rod through the transmission rod assembly, it drives the core transmission wheel to rotate, and further drives the energy-consuming flywheel to rotate through the core shaft. The current generated in the induction coil in the transmission housing is transmitted to the electromagnetic coils of the first and second magnetizing plates. The magnetic field generated by the electromagnetic coil changes the damping characteristics of the magnetorheological fluid in the magnetorheological cavity. When the energy-consuming flywheel rotates, it pulls the flywheel resetter, temporarily storing a part of the energy in the flywheel resetter.

[0029] After the external action ends, the system enters the reset state. The outward-extending rubber pad, which was originally under pressure, retracts under the action of the gas spring collar, the inner buffer pad, and the outer buffer pad. The energy-consuming flywheel is reset by the flywheel resetter, and the first and second transmission rods return to their original positions under the action of the reset spring.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] This invention utilizes a linked structure of the clamp protection component, transmission rod component, and central energy dissipation component, combined with a dual-center component, a magnetofluid cavity, a regular polygonal energy dissipation flywheel, and a circumferentially distributed elastic flywheel resetter, to solve the problem of traditional spacer bar structures being too simple and unable to simultaneously achieve efficient energy dissipation and autonomous reset. It overcomes the functional limitations of single components, ensuring the stability of the central energy dissipation component through flexible cable fixing with positioning ears, improving the control accuracy of split conductor spacing and energy dissipation efficiency, preventing sub-conductor collisions and core component misalignment, and providing structural support for the safe operation of transmission lines under complex conditions.

[0032] This invention utilizes a cylindrical inner buffer layer, an outer buffer layer, a gas spring collar, extended rubber pads on both sides, and a semi-flexible buffer structure with an arc shape to solve the problems of stress concentration and poor fit during vibration in traditional wire clamps. It also overcomes the wear defects caused by repeated bending of the wire. By supporting the wire with the extended rubber pads and absorbing energy with the buffer layer, the fit between the wire clamp and the wire is improved, as well as the vibration protection capability. This avoids excessive local stress in the transmission line, degradation of electrical and mechanical properties, and extends the service life of the wire.

[0033] This invention utilizes a magnetorheological design involving dual transmission rods, a viscous cavity, a spiral plug, and a magnetic element-induction coil linkage. This design solves the problem of the traditional transmission rod's single energy consumption mechanism and lack of energy recovery and utilization. It also overcomes the shortcomings of poor adaptability of single viscous energy consumption. By dissipating energy through viscous damping and adjusting the magnetorheological characteristics through induced current, it improves the energy dissipation efficiency and adaptability to different vibration intensities, avoids excessive relative motion amplitude of the sub-conductors, and simultaneously realizes energy recovery-assisted magnetorheological adjustment, thereby enhancing the overall energy consumption performance.

[0034] By utilizing a step-by-step process of wire clamp buffering → viscous energy dissipation of the transmission rod → central magnetorheological energy dissipation → component reset, the problems of discontinuous energy dissipation and low reset efficiency in traditional methods are solved. It overcomes the defects of incomplete energy dissipation and the inability of components to quickly return to their initial state. Through the support of extended rubber pads, viscous fluid compression, magnetorheological characteristic adjustment and the action of reset components, the overall resistance to external interference and cyclic protection efficiency are improved, avoiding continuous vibration of the conductor and fatigue damage to the components, and ensuring the long-term stable operation of the spacer.

[0035] Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0036] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0037] Figure 1 A three-dimensional structural diagram of a rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer provided as an exemplary embodiment of the present invention;

[0038] Figure 2 A three-dimensional structural diagram of a wire clamp protection assembly provided as an exemplary embodiment of the present invention;

[0039] Figure 3 A cross-sectional view of a wire clamp protection assembly provided as an exemplary embodiment of the present invention;

[0040] Figure 4 A partial three-dimensional cross-sectional view of a transmission rod assembly provided as an exemplary embodiment of the present invention;

[0041] Figure 5 A three-dimensional structural diagram of a central energy-consuming component provided for an exemplary embodiment of the present invention;

[0042] Figure 6 A cross-sectional view (middle section) of a central energy-consuming component provided for an exemplary embodiment of the present invention.

[0043] Figure 7A cross-sectional view (side-off) of a central energy-consuming component provided for an exemplary embodiment of the present invention.

[0044] The components include: 1. Wire clamp protection assembly; 2. Transmission rod assembly; 3. Central energy dissipation assembly; 4. Mounting collar; 5. Mounting pad; 6. Wire clamp housing; 7. Outer buffer pad; 8. Limiting baffle; 9-1. First extended rubber pad; 9-2. Second extended rubber pad; 10. Gas spring collar; 11. Inner buffer pad; 12. Reserved cavity for power transmission line; 13. Wire clamp connecting ear; 14-1. First transmission rod connecting ear; 14-2. Second transmission rod connecting ear; 1 5-1, First transmission rod; 15-2, Second transmission rod; 16, Transmission housing; 17, Transmission rod limiting baffle; 18, Return spring; 19, Viscous cavity; 20, Connecting bolt; 21, Core transmission rod connecting ear; 22, Core transmission rod; 23, Core housing; 24, First magnetizing plate; 25, Second magnetizing plate; 26, Positioning ear; 27, Core shaft; 28, Core transmission wheel; 29, Magnetorheological cavity; 30, Energy-consuming flywheel; 31, Flywheel resetter. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0046] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0047] This implementation proposes a rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer, comprising: a clamp protection component 1, a transmission rod assembly 2, and a central energy-dissipating component 3. The clamp protection component 1 is a protective unit that directly contacts the transmission line, and it achieves a rigid transmission connection with the central energy-dissipating component 3 through the transmission rod assembly 2. The central energy-dissipating component 3 uses a flexible cable to counteract the clamp protection component 1, ensuring that the overall structure does not shift under stress. The three components work together to achieve buffering, multi-energy dissipation, and self-resetting functions.

[0048] In the wire clamp protection assembly 1, the mounting collar 4 is an annular structure, and its inner sidewall is fixedly connected to the mounting pad 5. The mounting pad 5 is made of wear-resistant rubber and directly adheres to the outer sidewall of the outer buffer pad 7 to achieve the first layer of buffer protection. The wire clamp housing 6 is wrapped around the outer side of the outer buffer pad 7 and fixed to the mounting collar 4 by bolts to form the external support structure of the wire clamp protection assembly 1. The outer buffer pad 7 is fitted on the outer side of the inner buffer pad 11, and the annular gap between the two forms the mounting cavity of the gas spring collar 10. The two ends of the gap are fixed by the limiting baffles 8 to prevent the gas spring collar 10 from moving.

[0049] The extended rubber pads include a first extended rubber pad 9-1 and a second extended rubber pad 9-2, both of which are trapezoidal structures that are narrow on the outside and wide on the inside. They are respectively fitted into the gaps on both sides of the gas spring collar 10, and are prevented from coming out by relying on the self-locking property of the trapezoidal structure (the edges at both ends of the gap can limit the first extended rubber pad 9-1 and the second extended rubber pad 9-2); the inner buffer pad layer 11 is a cylindrical shape with open ends, and its interior has a reserved cavity 12 for the transmission line to accommodate and clamp the transmission line.

[0050] There are two wire clamp connecting ears 13, which are symmetrically welded to the outer side wall of the mounting collar 4. Each wire clamp connecting ear 13 has a bolt hole and can be detachably fixed to the first transmission rod connecting ear 14-1 of the transmission rod assembly 2 by connecting bolts 20. A small rotation gap is reserved at the connection to allow the angle to adapt when the transmission line swings slightly.

[0051] In the transmission rod assembly 2 of this implementation, the transmission housing 16 is a hollow cylindrical structure, and the interior is provided with a first transmission rod limiting baffle 17 and a second transmission rod limiting baffle 17 (symmetrically arranged) along the axial direction to limit the maximum stroke of the transmission rod; the first end of the first transmission rod 15-1 and the first end of the second transmission rod 15-2 are inserted into the transmission housing 16 relative to each other, and the ends of the two are fixed by welding through a return spring 18. In its natural state, the return spring 18 keeps the two transmission rods at the maximum distance position.

[0052] The first end of the first transmission rod 15-1 is fixedly connected to the first screw plug, and the first end of the second transmission rod 15-2 is fixedly connected to the second screw plug. Both screw plugs are inserted into the viscous cavity 19, which is filled with a high-viscosity viscous liquid (such as silicone oil-based viscous liquid).

[0053] The first transmission rod 15-1 is welded to the second end of the first transmission rod 15-1, and the second transmission rod 15-2 is welded to the second end of the second transmission rod 15-2. The first transmission rod 14-1 is fixed to the wire clamp 13 by the connecting bolt 20, and the second transmission rod 14-2 is fixed to the core transmission rod 21 of the central energy dissipation component 3 by the connecting bolt 20.

[0054] Both the first transmission rod 15-1 and the second transmission rod 15-2 have embedded magnetic elements (such as neodymium iron boron cores) inside. The inner wall of the transmission housing 16 is fixed with an induction coil (not shown in the figure) through a slot. The magnetic elements and the induction coil are arranged coaxially to ensure that they cut magnetic field lines when they move relative to each other.

[0055] The central energy-consuming component 3 includes a core transmission rod 22 and two central components with identical structures and symmetrical arrangement. The two ends of the core transmission rod 22 are fixedly connected to the core shafts 27 of the two central components by flat keys to realize torque transmission.

[0056] In each central component, the first magnetizing plate 24 and the second magnetizing plate 25 are both circular plate structures, arranged opposite each other, and the core shell 23 is fixed around them by bolts to form a cylindrical inner cavity; the core shaft 27 is installed at the center of the inner cavity by bearings, and the core drive wheel 28 and the energy dissipation flywheel 30 are fixed on the core shaft 27 by key connection. The radial cross section of the energy dissipation flywheel 30 is a regular hexagon to increase the contact area with the magnetorheological fluid.

[0057] An annular magnetorheological cavity 29 is formed between the outer wall of the energy-consuming flywheel 30 and the core shell 23, the first magnetizing plate 24, and the second magnetizing plate 25. The magnetorheological cavity 29 is filled with magnetorheological fluid (such as carbonyl iron powder-based magnetorheological fluid). The flywheel resetter 31 consists of three evenly distributed elastic elements (such as disc springs), which are welded and fixed along the circumference of the core drive wheel 28. The other end is welded to the inner wall of the core shell 23, so that the energy-consuming flywheel 30 is in the center of the inner cavity under natural conditions.

[0058] The first magnetizing plate 24 and the second magnetizing plate 25 are both embedded with electromagnetic coils (not shown in the figure). The electromagnetic coils are electrically connected to the induction coil in the transmission housing 16 through wires to realize the transmission of induced current. Four positioning ears 26 are uniformly welded along the circumferential direction on the outer wall of the core housing 23. Each positioning ear 26 is fixed to the wire clamp connection ear 13 of the wire clamp protection component 1 by a flexible cable (not shown in the figure) to limit the rotation tendency of the core housing 23.

[0059] The energy dissipation process of this invention follows a stepped mechanism of wire clamp buffering → transmission rod viscous energy dissipation → central magnetorheological coordinated energy dissipation. The reset process is achieved through the elastic reset components of each component to achieve automatic recovery. The specific steps are as follows:

[0060] Step 1: Buffering and stress dispersion of the clamp protection assembly (initial stage of external forces).

[0061] When the power transmission line encounters strong winds, icing, or other external forces, it vibrates and bends towards the clamp, causing its outer wall to compress the inner buffer pad 11. After the inner buffer pad 11 deforms under pressure, it further compresses the gas spring collar 10 (the gas spring collar 10 is an elastic cavity filled with compressed air). The deformed gas spring collar 10 generates a reverse thrust, pushing the first and second extended rubber pads 9-1 and 9-2 on both sides to move outward along the gap between the outer buffer pad 7 and the inner buffer pad 11 (the limiting baffles are spaced apart or have ventilation holes), until the arc-shaped edges of the two extended rubber pads are completely in contact with the outer wall of the power transmission line.

[0062] This invention utilizes the elastic deformation of the inner buffer layer 11 and the outer buffer layer 7 to absorb the initial impact energy. The active contact area between the clamp and the transmission line is increased through the active contact of the extended rubber pad. At the same time, the edges of the semi-flexible extended rubber pad and the inner and outer buffer layers are designed with a multi-curvature structure to adapt to the bending curvature of the transmission line, achieving uniform distribution of clamping force and avoiding stress concentration caused by point contact of traditional clamps, thus reducing local bending stress of the transmission line. The elastic contact of the extended rubber pad reduces wear caused by repeated bending of the conductor and extends the service life of the conductor. The buffering effect of the gas spring collar 10 weakens the initial impact load and provides a stable force transmission environment for subsequent energy-consuming components.

[0063] Step 2: Viscous energy dissipation and induced current generation of the transmission rod assembly (initial energy dissipation stage).

[0064] The force exerted by the transmission line vibration is transmitted to the first transmission rod 15-1 through the clamp protection assembly 1. Due to the decreasing spacing between the conductors of each split sub-transmission, the first transmission rod 15-1 moves into the transmission housing 16. At the same time, the second transmission rod 15-2 is pulled inward by the return spring 18 (the two transmission rods move in opposite directions). The first and second spiral plugs at the ends of the two transmission rods move with the transmission rods, squeezing the viscous liquid in the viscous cavity 19. The viscous liquid is forced to flow along the gap between the spiral groove of the spiral plug and the inner wall of the transmission housing 16. At the same time, the magnetic element embedded in the transmission rod moves with the transmission rod and undergoes relative displacement with the induction coil in the transmission housing 16, cutting the magnetic field lines to generate an induced current.

[0065] The internal friction resistance during viscous fluid flow consumes most of the impact energy (viscous damping energy dissipation mechanism). The spiral structure of the plug increases the contact area between the viscous fluid and the transmission rod, improving energy dissipation efficiency. The relative motion between the magnetic element and the induction coil follows the law of electromagnetic induction, and the generated induced current provides clean energy for subsequent magnetorheological energy dissipation. Through the above design, the first stage of energy dissipation is achieved, initially weakening the energy of external forces and reducing the amplitude of relative motion of the transmission lines. The transmission rod limiting baffle 17 limits the maximum stroke of the transmission rod, preventing collisions caused by excessively small spacing between sub-conductors, combining the limiting function of the rigid spacer bar with the displacement adaptability of the flexible spacer bar. The induced current does not require an external power supply, realizing energy recovery and utilization, and reducing system operating costs.

[0066] Step 3: Magnetorheological coordinated energy dissipation of the central energy-consuming component (deep energy dissipation stage).

[0067] The axial force of the second transmission rod 15-2 is transmitted to the core transmission rod 22 through the core transmission rod connecting lug 21. The core transmission rod 22 drives the core shaft 27 to rotate. The core shaft 27 drives the core transmission wheel 28 to rotate synchronously, and then drives the energy-consuming flywheel 30 to rotate through the core shaft 27. At this time, the induced current generated by the transmission rod assembly 2 is transmitted to the electromagnetic coils of the first magnetizing plate 24 and the second magnetizing plate 25 through the wires. After the electromagnetic coil is energized, it generates a magnetic field. The magnetic field acts on the magnetorheological fluid in the magnetorheological cavity 29. Under the action of the magnetic field, the magnetorheological fluid changes from a Newtonian fluid to a Bingham fluid. Its shear yield strength increases with the increase of the magnetic field strength, generating damping resistance to the rotation of the energy-consuming flywheel 30. At the same time, when the energy-consuming flywheel 30 rotates, it pulls the flywheel reset device 31 (elastic element stretching deformation), temporarily storing some energy in the form of elastic potential energy.

[0068] The damping characteristics of the magnetorheological fluid can be dynamically adjusted by the magnitude of the induced current (the larger the current, the stronger the magnetic field, and the greater the damping), achieving adaptive energy dissipation for vibrations of different intensities. The hexagonal cross-section of the energy-dissipating flywheel 30 increases the contact area with the magnetorheological fluid, enhancing the damping torque. The elastic deformation of the flywheel resetter 31 enables temporary energy storage, preventing concentrated energy release. This achieves a second level of efficient energy dissipation, improving the residual energy dissipation rate and ultimately controlling the relative motion amplitude of the sub-conductors within a safe threshold. The dynamic damping adjustment of the magnetorheological fluid adapts to external forces of different intensities (such as light wind vibration and strong wind swirling), solving the problem of poor adaptability of traditional single energy dissipation mechanisms. The core outer shell 23 is fixed to the flexible cable of the wire clamp protection component 1 by the positioning ear 26, limiting the displacement of the core component and ensuring the stable rotation of the energy-dissipating flywheel 30, maintaining stable energy dissipation efficiency.

[0069] Step 4: Automatic system reset (after external forces have ceased).

[0070] When the external forces disappear, the gas spring collar 10 of the clamp protection assembly 1 releases the stored elastic potential energy, pushing the first extended rubber pad 9-1 and the second extended rubber pad 9-2 back to their initial positions; the inner buffer pad 11 and the outer buffer pad 7 return to their original state under their own elastic action, and the transmission line returns to the center of the reserved transmission line cavity 12; the reset spring 18 of the transmission rod assembly 2 releases elastic potential energy, pushing the first transmission rod 15-1 and the second transmission rod 15-2 to move outward and return to the initial distance; the flywheel resetter 31 (elastic element) of the central energy dissipation assembly 3 retracts, pulling the energy dissipation flywheel 30, the core transmission wheel 28 and the core shaft 27 back to their initial positions; the magnetorheological fluid in the magnetorheological cavity 29 loses the magnetic field effect and returns to the Newtonian fluid state, preparing for the next energy dissipation.

[0071] Utilizing the elastic reset characteristics of the gas spring collar 10, return spring 18, and flywheel resetter 31, the entire system can be automatically reset without manual intervention. The elastic parameters of each reset component are matched to ensure a smooth and shock-free reset process. The reset time is short, quickly restoring the spacer to its initial position without subsequent maintenance, thus reducing operation and maintenance costs. The reset process is free from hard collisions, avoiding component fatigue damage and improving the overall durability of the spacer. After reset, the positions of each component are accurate, ensuring that the energy consumption efficiency is not affected by the next external action.

[0072] In summary, the transmission rod assembly and central energy dissipation assembly of this invention utilize viscous damping friction energy dissipation and magnetorheological damping energy dissipation to weaken external forces in multiple ways, improving energy dissipation efficiency while ensuring the spacing between sub-conductors. This invention combines the advantages of the deformability of flexible spacers and the impact resistance of rigid spacers, using the extension and retraction of the transmission rod assembly and the rotational deformation of the central energy dissipation assembly for buffering, and using the damping of the two components to maintain a certain stiffness, thus realizing a semi-rigid structural system. After the external forces have ended, this invention can automatically reset the three-part system using a gas spring collar, a return spring, and a flywheel resetter to restore the initial posture, reducing the workload of subsequent maintenance and improving the sustainability of power supply. This invention modifies the traditional wire clamp by designing the curvature of the edges on both sides of the wire clamp and adding extended rubber pads, increasing the contact area between the edge of the wire clamp and the transmission line, thereby reducing stress concentration on the transmission line at the edge of the wire clamp and wear from repeated bending of the transmission line.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rigid-flexible multi-energy-dissipating self-resetting conductor spacer, characterized in that, include: The cable clamp protection assembly, the transmission rod assembly, and the central energy dissipation assembly are connected to the central energy dissipation assembly via the transmission rod assembly. The central energy-consuming component includes: a core transmission rod and two central components with the same structure and arranged in opposite positions. The central components include a core shell, a first magnetizing plate, a second magnetizing plate, a core shaft, a core transmission wheel, a magnetofluid cavity, an energy-consuming flywheel, and a flywheel resetter. The first and second magnetic plates with the same structure are positioned opposite each other, and a core shell is arranged around them to form the inner cavity of the central component. A central shaft is provided at the center of the inner cavity, and an energy-consuming flywheel is connected to the central shaft. The outer wall of the energy-consuming flywheel forms a magnetofluid cavity between the core shell, the first magnetic plate, and the second magnetic plate. The magnetofluid cavity contains magnetofluid. The energy-consuming flywheel is connected to the inner wall of the core shell through a flywheel resetter. The core drive rod is connected to the drive rod assembly, the core drive rod is connected to the core shaft, one end of the core shaft is connected to the core drive wheel of a central assembly, and the other end of the core shaft is connected to the core drive wheel of another central assembly; The wire clamp protection assembly includes: a mounting collar, a mounting pad, a wire clamp housing, an outer buffer pad, a limit baffle, an extended rubber pad, a gas spring collar, an inner buffer pad, a reserved cavity for the power transmission line, and a wire clamp connecting ear. The inner buffer pad is a cylindrical shape with open ends to form a cavity for the reserved transmission line. The outer buffer pad is sleeved on the outside of the inner buffer pad, and the gap between the outer buffer pad and the inner buffer pad forms a gas spring collar. The gap between the outer buffer pad and the inner buffer pad is connected to a limit baffle. The extended rubber pad includes a first extended rubber pad and a second extended rubber pad. The first extended rubber pad is arranged on one side of the gap, and the second extended rubber pad is arranged on the other side of the gap. The mounting collar is fitted on the outside of the outer buffer pad layer. A wire clamp connecting ear is fixed on the mounting collar. The edges of the semi-flexible first extended rubber pad, second extended rubber pad, inner buffer pad layer and outer buffer pad layer all have a certain curvature. The transmission rod assembly includes: a first transmission rod, a second transmission rod, a transmission housing, a first transmission rod limiting baffle, a second transmission rod limiting baffle, a return spring, and a viscous cavity; The first end of the first transmission rod and the first end of the second transmission rod are inserted into the transmission housing at opposite positions, and a return spring is connected between the first end of the first transmission rod and the first end of the second transmission rod. The first transmission rod limiting baffle and the second transmission rod limiting baffle are arranged inside the transmission housing. The two ends of the transmission housing are sealed to form a viscous cavity, and the viscous cavity is filled with viscous liquid.

2. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in claim 1, characterized in that, Both the first and second magnetic plates are circular, and they are connected to the core shell to form a cylindrical inner cavity.

3. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in claim 1, characterized in that, The flywheel resetter consists of multiple elastic elements evenly connected along the circumference of the core drive wheel, with each elastic element connected to the inner wall of the core shell.

4. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in claim 1, characterized in that, Multiple positioning ears are evenly arranged along the circumference on the outer wall of the core shell. The positioning ears are connected to the wire clamp protection component by flexible cables.

5. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in any one of claims 1-4, characterized in that, The radial cross-section of the energy-consuming flywheel, perpendicular to its central axis, is a regular polygon.

6. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in claim 1, characterized in that, The second end of the first transmission rod is provided with a first transmission rod connecting ear, and the second end of the second transmission rod is provided with a second transmission rod connecting ear. The first transmission rod connecting ear and the wire clamp connecting ear are fixedly connected by bolts. The core drive rod is provided with a core drive rod connecting ear, and the second drive rod connecting ear is fixedly connected to the core drive rod connecting ear by bolts. The first end of the first drive rod is connected to a first spiral plug, and the second end of the second drive rod is connected to a second spiral plug. Both the first spiral plug and the second spiral plug are inserted into the viscous cavity.

7. The rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in claim 1, characterized in that, The first and second transmission rods have embedded magnetic elements, and an induction coil is arranged inside the transmission housing. When the first and second transmission rods move relative to the transmission housing, an induced current is generated. Both the first and second magnetizing plates have built-in electromagnetic coils. The electromagnetic coils use the current generated by the induction coil in the transmission housing to generate magnetism and change the properties of the magnetorheological fluid.

8. A multi-energy dissipation method combining rigidity and flexibility, characterized in that, Using the rigid-flexible multi-energy-dissipating self-resetting sub-conductor spacer as described in any one of claims 1-7, The process includes the following: When subjected to external forces, the power line vibrates and produces a certain arc. The inner part of the clamp is compressed, and the inner buffer pad is deformed by the power line and further compresses the gas spring collar. The deformed gas spring collar pushes the extended rubber pads on both sides to move outward along the gap formed by the inner and outer buffer pads to support the power line. When external forces are transmitted to the online clamp protection component via the first transmission rod, the first transmission rod and the second transmission rod move toward each other in the viscous cavity. Under the squeezing action, the viscous liquid in the cavity flows through the gap between the transmission housing and the first and second screw plugs. When the action is transmitted to the core transmission rod through the transmission rod assembly, it drives the core transmission wheel to rotate, and further drives the energy-consuming flywheel to rotate through the core shaft. The current generated in the induction coil in the transmission housing is transmitted to the electromagnetic coils of the first and second magnetizing plates. The magnetic field generated by the electromagnetic coil changes the damping characteristics of the magnetorheological fluid in the magnetorheological cavity. When the energy-consuming flywheel rotates, it pulls the flywheel resetter, temporarily storing a part of the energy in the flywheel resetter. After the external action ends, the system enters the reset state. The outward-extending rubber pad, which was originally under pressure, retracts under the action of the gas spring collar, the inner buffer pad, and the outer buffer pad. The energy-consuming flywheel is reset by the flywheel resetter, and the first and second transmission rods return to their original positions under the action of the reset spring.

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