A phase interval device for preventing galloping of transmission lines

Abstract

The present invention discloses a phase interval device for preventing galloping of transmission lines, belonging to the technical field of transmission lines. There are two connecting plates, two connectors, two cross universal joints and two rod-type composite insulators between two adjacent six-split damping spacer dampers; each connecting plate is connected to a cross universal joint through a connector, and the cross universal joint is also connected to the end of the rod-type composite insulator; a hydraulic shock absorber is provided in the middle of the two rod-type composite insulators; a damping ball is provided at the center of the triangle formed by the rod-type composite insulators; an external viscous damper, a first connecting rod and a second connecting rod are provided between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are respectively connected to both sides of the external viscous damper, the damping ball is connected to the first connecting rod, and the hydraulic shock absorber and the second connecting rod are connected through a connecting collar. The present invention solves the problems existing in the traditional technology, such as wire damage caused by long-term use of the line, affecting the safety of the transmission line, and high cost.

Description

Technical Field

[0001] The invention belongs to the technical field of transmission lines, and particularly relates to an anti-vibration phase interval device for transmission lines. Background Art

[0002] In the power system, the transmission line is an important channel for electric energy transmission, and its stability and safety are directly related to the reliability and economy of power supply. However, in actual operation, due to the influence of factors such as wind, snow, and temperature changes, the conductors of transmission lines often experience galloping phenomena. Such galloping not only increases the wear of the conductors and shortens their service life, but may also cause faults such as line breaks and short circuits, posing a serious threat to the stable operation of the power system. Galloping of transmission lines is a difficult point to control. The spacer dampers between split conductors only play an anti-galloping role for single-phase conductors. For three-phase alternating current and some transmission lines with a number of phases other than one, phase interval rods should be used to fix each phase conductor so that each phase conductor forms a whole, thereby achieving the effect of suppressing line galloping.

[0003] In the prior art, the forms of phase interval rods are also various, including three-split phase interval rods, three-split anti-galloping interval rods, or four-split anti-galloping interval rods. However, for the existing phase interval rods, some only fixedly connect the distance between adjacent phases with composite insulators, and some add a rotating joint at the connection, but there is no damping device between two interval rods, and most only limit the distance between phases, while ignoring the influence of large-amplitude galloping of conductors on the strength of the conductors themselves. This causes damage to the conductors during long-term line use, directly affecting the safe operation of the transmission line and increasing the cost of daily maintenance. Summary of the Invention

[0004] Therefore, the invention provides an anti-vibration phase interval device for transmission lines, which solves the problems in the traditional technology that the conductors are damaged during long-term line use, affecting the safe operation of the transmission line and increasing the maintenance cost.

[0005] To achieve the above object, the invention provides the following technical solution: an anti-vibration phase interval device for transmission lines, comprising three six-split damping interval rods, and each of the six-split damping interval rods is provided with six conductor clamps;

[0006] There are two connecting plates, two connectors, two cross universal joints and two rod-type composite insulators between two adjacent six-split damping spacer dampers; the two connecting plates, two connectors and two cross universal joints are respectively located on both sides of the two rod-type composite insulators, each connecting plate connects a cross universal joint through a connector, and the cross universal joint is also connected to the end of the rod-type composite insulator; a hydraulic shock absorber is provided in the middle of the two rod-type composite insulators;

[0007] A damping ball is provided at the center of the triangle formed by three six-split damping spacer dampers, and the damping ball is respectively connected to the three six-split damping spacer dampers through three connecting rods; an external viscous damper, a first connecting rod and a second connecting rod are provided between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are respectively connected to both sides of the external viscous damper, the damping ball is connected to the first connecting rod, and the hydraulic shock absorber and the second connecting rod are connected through a connecting collar.

[0008] As an optimal solution for the anti-vibration phase interval device of the transmission line, the cross universal joint and the connector are connected by a pin; one end of the rod-type composite insulator is connected to the cross universal joint, and the other end of the rod-type composite insulator is connected to the rod head of the hydraulic shock absorber.

[0009] As an optimal solution for the anti-vibration phase interval device of the transmission line, the six-split damping spacer damper includes a frame plate; the wire clamp is installed on the edge of the frame plate through bolts; the frame plate is fixedly connected to the connecting plate through bolts;

[0010] The number of the wire clamps is six, and the six wire clamps are evenly distributed along the edge of the frame plate.

[0011] As an optimal solution for the anti-vibration phase interval device of the transmission line, the wire clamp includes a clamp fixing part, a wire accommodating part and a buckle closing part; the wire clamp is connected to the edge of the frame plate through the clamp fixing part, the wire accommodating part is annular, one end of the wire accommodating part is connected to the clamp fixing part, the other end of the wire accommodating part is connected to the buckle closing part, and the buckle closing part and the side part of the clamp fixing part are closed through a clamping head and a clamping groove.

[0012] As an optimal solution for the anti-vibration phase interval device of the transmission line, the end of the connector and the connecting plate are fixedly connected through bolts; the cross universal joint includes a universal joint driving fork, a universal joint cross shaft and a universal joint driven fork;

[0013] The center of the connector is connected to one end of the driving yoke of the universal joint. The other end of the driving yoke of the universal joint is connected to one end of the driven yoke of the universal joint through the cross shaft of the universal joint. The other end of the driven yoke of the universal joint is connected to the end of the rod-type composite insulator.

[0014] As a preferred solution of the anti-galloping phase interval device for transmission lines, ball-and-socket joints are provided at the connection between the damping ball and the first connecting rod and at the connection between the damping ball and the connecting rod.

[0015] A counterweight ball is provided inside the damping ball. The counterweight ball is hoisted and fixed at the center of the damping ball through a traction rope. A groove is provided at the lower part of the counterweight ball. The four directions of front, back, left and right of the groove are connected to the ball housing of the damping ball through four internal viscous dampers.

[0016] As a preferred solution of the anti-galloping phase interval device for transmission lines, the hydraulic shock absorber includes a hydraulic rod, a hydraulic piston, a buffer spring and an oil pressure part. The outer end of the hydraulic rod is directly fixedly connected to the end of the rod-type composite insulator. The hydraulic piston is inside the oil pressure part. The inner end of the hydraulic rod extends into the oil pressure part and is fixedly connected to the hydraulic piston. The buffer spring is arranged inside the oil pressure part and sleeved around the hydraulic rod.

[0017] As a preferred solution of the anti-galloping phase interval device for transmission lines, the three six-split damping spacer dampers are respectively installed on the three phase lines of the transmission line. The distance between adjacent two phase lines is limited by the rod-type composite insulator and the hydraulic shock absorber, and insulation intervals are provided between adjacent two phase lines.

[0018] When the conductors of the transmission line undergo horizontal galloping, the galloping energy of the conductors between adjacent two phase lines is consumed by adjusting the damping coefficient of the hydraulic shock absorber.

[0019] The horizontal galloping energy E of the conductors between adjacent two phase lines is;

[0020]

[0021] The energy consumed by controlling the hydraulic shock absorber is:

[0022] E d = c·2π 2 f 2 A 2 T

[0023] E d ≥ E

[0024] In the formula, m is the mass of the single-phase conductor; E dis the energy of conductor galloping between two adjacent phase conductors consumed; c is the damping coefficient of the hydraulic shock absorber; f is the frequency of conductor galloping; A is the amplitude of conductor galloping; T is the period of conductor galloping.

[0025] As an optimal solution for the anti-galloping phase interval device of the transmission line, the damping balls and the external viscous dampers are used to resist the galloping of the transmission line.

[0026] As an optimal solution for the anti-galloping phase interval device of the transmission line, the internal viscous damper is used to limit the movement range of the counterweight ball in the damping ball.

[0027] The present invention has the following advantages:

[0028] In the present invention, not only hydraulic shock absorbers are provided between adjacent damping spacer dampers, but also damping balls are installed at the overall center, and the damping balls are connected to the hydraulic shock absorbers through viscous dampers; this design enables the three to work together to form a more comprehensive energy-consuming vibration damping network. When the conductor gallops, the hydraulic shock absorber consumes the energy of conductor galloping between adjacent phase conductors, the damping ball uses inertia to resist the overall galloping, and the viscous damper further enhances the energy-consuming effect;

[0029] The overall structural stability of the present invention is enhanced: through multiple connecting plates, connectors and reasonable connection layouts, the three six-split damping spacer dampers and other components form a more stable overall structure. The design of setting the damping ball at the center and using ball-and-socket joints also helps to maintain the stability of the overall structure during conductor galloping and reduce the risk of damage to components caused by stress concentration generated by galloping;

[0030] The present invention can more precisely control the vibration damping process by using the hydraulic shock absorber, and the effect of reducing the amplitude and period of conductor galloping may be more significant. Compared with some simple damping elements, it may have better performance in dealing with complex galloping conditions;

[0031] The components of the present invention cooperate with each other and work together, making the performance of the whole device more optimized, and it can be adjusted according to the requirements of damping spacer dampers with different split numbers without significantly changing the overall structure, so it has a wider application range and better flexibility and adaptability in dealing with different transmission line conditions. Description of the Drawings

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extension based on the provided drawings without creative work.

[0033] Figure 1 Structural schematic diagram of the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention;

[0034] Figure 2 Structural schematic diagram of the damping ball in the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention;

[0035] Figure 3 Structural schematic diagram of the cross universal joint in the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention;

[0036] Figure 4 Structural schematic diagram of the combination of the six - split damping spacer, connecting plate and connector provided in the embodiment of the present invention;

[0037] Figure 5 Structural schematic diagram of the wire clamp in the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention;

[0038] Figure 6 Schematic diagram of the ball - socket joint at the connection of the damping ball, connecting rod and connecting rod provided in the embodiment of the present invention;

[0039] Figure 7 Connection schematic diagram of the internal viscous damper and the counterweight ball in the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention;

[0040] Figure 8 Connection schematic diagram between the damping ball and the hydraulic shock absorber provided in the embodiment of the present invention;

[0041] Figure 9 Internal structural schematic diagram of the hydraulic shock absorber in the phase - interval device for preventing galloping of transmission lines provided in the embodiment of the present invention.

[0042] In the figure, 1. Six - split damping spacer; 2. Wire clamp head; 3. Connecting plate; 4. Connector; 5. Cross universal joint; 6. Rod - type composite insulator; 7. Hydraulic shock absorber; 8. Damping ball; 9. External viscous damper; 10. First connecting rod; 11. Second connecting rod; 12. Connecting sleeve; 13. Frame plate; 14. Clamp fixing part; 15. Wire accommodating part; 16. Snap - closing part; 17. Universal joint driving fork; 18. Universal joint cross shaft; 19. Universal joint driven fork; 20. Ball - socket joint; 21. Counterweight ball; 22. Groove; 23. Internal viscous damper; 24. Hydraulic rod; 25. Hydraulic piston; 26. Buffer spring; 27. Oil pressure part; 28. Connecting rod; 29. Towing rope. Detailed implementation manners

[0043] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0044] See Figure 1 and Figure 2 , an interphase spacing device for preventing galloping of transmission lines provided by an embodiment of the present invention includes three six-split damping spacer dampers 1, and each of the six-split damping spacer dampers 1 is provided with six conductor clamps 2;

[0045] Among them, two connecting plates 3, two connectors 4, two cross universal joints 5 and two rod-type composite insulators 6 are provided between two adjacent six-split damping spacer dampers 1; the two connecting plates 3, the two connectors 4, and the two cross universal joints 5 are respectively located on both sides of the two rod-type composite insulators 6, each connecting plate 3 is connected to a cross universal joint 5 through a connector 4, and the cross universal joint 5 is also connected to the end of the rod-type composite insulator 6; a hydraulic shock absorber 7 is provided in the middle of the two rod-type composite insulators 6;

[0046] Among them, a damping ball 8 is provided at the center of the triangle formed by the three six-split damping spacer dampers 1, and the damping ball 8 is respectively connected to the three six-split damping spacer dampers 1 through three connecting rods 28; an external viscous damper 9, a first connecting rod 10 and a second connecting rod 11 are provided between the hydraulic shock absorber 7 and the damping ball 8; the first connecting rod 10 and the second connecting rod 11 are respectively connected to both sides of the external viscous damper 9, the damping ball 8 is connected to the first connecting rod 10, and the hydraulic shock absorber 7 and the second connecting rod 11 are connected through a connecting collar 12.

[0047] Specifically, each six-split damping spacer 1 fixes the conductors through its six conductor clamps 2. Between two adjacent six-split damping spacers 1, the connecting plate 3, the connector 4, and the cross universal joint 5 play the role of connecting and transmitting forces. The rod-type composite insulator 6 can provide support and insulation at the same time. When the conductors vibrate under the action of wind force or other external forces, this vibration will be transmitted to the connecting plate 3, the connector 4, the cross universal joint 5, and the rod-type composite insulator 6 through the six-split damping spacer 1. The hydraulic shock absorbers 7 in the middle of the two rod-type composite insulators 6 can absorb and buffer part of the vibration energy and reduce the transmission of vibration. The damping ball 8 located at the center of the triangle formed by three six-split damping spacers 1 is connected to the six-split damping spacer 1 through the connecting rod 28. When vibration occurs, the movement of the damping ball 8 can consume part of the energy. The external viscous damper 9 is connected to the damping ball 8 and the hydraulic shock absorber 7 through the first connecting rod 10 and the second connecting rod 11 respectively. During the vibration process, the viscous liquid inside the external viscous damper 9 generates damping force, which further consumes the vibration energy, thereby effectively suppressing the vibration of the conductors.

[0048] See Figure 3 , in this embodiment, the cross universal joint 5 and the connector 4 are connected by a pin; one end of the rod-type composite insulator 6 is connected to the cross universal joint 5, and the other end of the rod-type composite insulator 6 is connected to the rod head of the hydraulic shock absorber 7. The end of the connector 4 and the connecting plate 3 are fixedly connected by bolts; the cross universal joint 5 includes a universal joint driving fork 17, a universal joint cross shaft 18, and a universal joint driven fork 19; the center of the connector 4 is connected to one end of the universal joint driving fork 17, the other end of the universal joint driving fork 17 is connected to one end of the universal joint driven fork 19 through the universal joint cross shaft 18, and the other end of the universal joint driven fork 19 is connected to the end of the rod-type composite insulator 6.

[0049] Specifically, the cross universal joint 5 and the connector 4 are connected by a pin. This connection method allows them to have a certain degree of freedom of movement in multiple directions, and can better adapt to the complex angular changes and force transmission direction changes caused by the vibration of the conductors. One end of the rod-type composite insulator 6 is connected to the universal joint driven fork 19 of the cross universal joint 5. When vibration occurs, the force can be transmitted to the rod-type composite insulator 6 through the cross universal joint 5.

[0050] Among them, the end of the connector 4 and the connecting plate 3 are fixedly connected by bolts, ensuring the stability of the connection and enabling the vibration to be effectively transmitted from the connecting plate 3 to the connector 4. The center of the connector 4 is connected to one end of the driving yoke 17 of the universal joint. The other end of the driving yoke 17 of the universal joint is connected to one end of the driven yoke 19 of the universal joint through the cross shaft 18 of the universal joint, realizing the transmission and conversion of force and motion. The other end of the driven yoke 19 of the universal joint is connected to the end of the rod-type composite insulator 6, transmitting the vibration to the rod-type composite insulator 6. When the wire vibrates due to external force, the vibration is first transmitted to the connecting plate 3, then transmitted to the connector 4 through the bolts, and then transmitted to the rod-type composite insulator 6 through the cardan joint 5. Finally, it reaches the hydraulic shock absorber 7 for shock absorption treatment. In the whole process, each component works together to reduce the impact of vibration on the wire.

[0051] See Figure 4 , in this embodiment, the six-split damping spacer 1 includes a frame plate 13; the wire clamp 2 is installed on the edge of the frame plate 13 by bolts; the frame plate 13 is fixedly connected to the connecting plate 3 by bolts; the number of the wire clamps 2 is six, and the six wire clamps 2 are evenly distributed along the edge of the frame plate 13.

[0052] Specifically, the frame plate 13 serves as the main structure and provides an installation basis for the wire clamp 2. The wire clamp 2 is installed on the edge of the frame plate 13 by bolts and is evenly distributed, so that the wire can be clamped evenly, ensuring the stable position and uniform force of the wire. When the wire vibrates under the action of external force, the vibration force will be transmitted to the wire clamp 2 and then to the frame plate 13 through the bolts. The frame plate 13 is fixedly connected to the connecting plate 3 by bolts, thereby further transmitting the vibration to adjacent connecting components, such as the connecting plate 3, the connector 4, the cardan joint 5, etc., to achieve the collaborative shock absorption effect of the entire damping spacer system. In practical applications, when a certain section of the wire vibrates, the wire clamps 2 of the six-split damping spacer 1 on this section of the wire first sense and receive the vibration force, and then disperse and weaken the vibration through the frame plate 13 and the connecting components, reducing the damage to the wire.

[0053] See Figure 5 , in this embodiment, the wire clamp 2 includes a clamp fixing part 14, a wire accommodating part 15 and a buckle closing part 16; the wire clamp 2 is connected to the edge of the frame plate 13 through the clamp fixing part 14. The wire accommodating part 15 is annular. One end of the wire accommodating part 15 is connected to the clamp fixing part 14, and the other end of the wire accommodating part 15 is connected to the buckle closing part 16. The buckle closing part 16 and the side part of the clamp fixing part 14 form a closure through a clamping head and a clamping groove.

[0054] Specifically, the chuck fixing part 14 is used to connect the wire chuck 2 to the edge of the frame plate 13 to ensure the stable installation of the chuck. The wire accommodating part 15 is annular and provides a space for placing the wire. When it is necessary to clamp the wire, the wire is placed into the wire accommodating part 15. The buckle closing part 16 and the chuck fixing part 14 are closed through the cooperation of the chuck and the card slot. After the wire is placed, by closing the buckle closing part 16, the wire is tightly restricted inside the wire accommodating part 15 to prevent the wire from coming out.

[0055] See Figure 6 , Figure 7 and Figure 8 , in this embodiment, at the connection between the damping ball 8 and the first connecting rod 10, and at the connection between the damping ball 8 and the connecting rod 28, ball-and-socket joints 20 are provided;

[0056] A counterweight ball 21 is provided inside the damping ball 8. The counterweight ball 21 is hoisted and fixed at the center of the damping ball 8 through a towing rope 29. A groove 22 is provided at the lower part of the counterweight ball 21. The front, rear, left, and right four directions of the groove 22 are connected to the spherical outer shell of the damping ball 8 through four internal viscous dampers 23.

[0057] Specifically, the ball-and-socket joints 20 provided at the connections between the damping ball 8, the first connecting rod 10, and the connecting rod 28 enable the connection to have a certain flexibility and multi-angle movement ability, and can better adapt to and transmit forces and movements in different directions. The counterweight ball 21 inside the damping ball 8 is hoisted and fixed at the central position through the towing rope 29. When the wire vibrates and drives the entire structure to vibrate, the counterweight ball 21 will have relative movement due to inertia. The groove 22 at the lower part of the counterweight ball 21 is connected to the spherical outer shell of the damping ball 8 through four internal viscous dampers 23. When the counterweight ball 21 has relative movement, the internal viscous dampers 23 will generate damping force to consume the vibration energy, thereby playing a role in shock absorption. When the wire is subjected to an external force and vibrates violently, the damping ball 8 will move accordingly. The counterweight ball 21 generates relative displacement with the spherical outer shell under the action of inertia, and the internal viscous dampers 23 play a role in consuming the vibration energy and reducing the impact on the wire.

[0058] See Figure 9 , in this embodiment, the hydraulic shock absorber 7 includes a hydraulic rod 24, a hydraulic piston 25, a buffer spring 26, and an oil pressure part 27; the outer end of the hydraulic rod 24 is directly fixedly connected to the end of the rod-type composite insulator 6; the hydraulic piston 25 is inside the oil pressure part 27. The inner end of the hydraulic rod 24 extends into the oil pressure part 27 and is fixedly connected to the hydraulic piston 25. The buffer spring 26 is provided inside the oil pressure part 27, and the buffer spring 26 is sleeved around the hydraulic rod 24.

[0059] Specifically, when the force generated by the vibration of the wire is transmitted to the rod-type composite insulator 6 and then to the hydraulic shock absorber 7, the hydraulic rod 24 will be subjected to a thrust or a tensile force. The outer end of the hydraulic rod 24 is fixedly connected to the rod-type composite insulator 6, and its inner end extends into the oil pressure part 27 and is fixedly connected to the hydraulic piston 25. When the hydraulic rod 24 moves, it will drive the hydraulic piston 25 to move within the oil pressure part 27. Within the oil pressure part 27, the flow of the liquid will generate resistance, thereby slowing down the movement speed of the hydraulic piston 25 and consuming the vibration energy. At the same time, the buffer spring 26 sleeved around the hydraulic rod 24 will also play a role. When the hydraulic rod 24 is compressed, the buffer spring 26 is compressed and stores energy; when the hydraulic rod 24 is stretched, the buffer spring 26 rebounds and releases energy. Through the movement of the hydraulic piston 25 within the oil pressure part 27 and the expansion and contraction of the buffer spring 26, the energy generated by the vibration of the wire is jointly absorbed and buffered, achieving the effect of shock absorption.

[0060] In a possible embodiment, the three six-split damping spacer dampers 1 are respectively installed on three phase lines of the transmission line; the distance between adjacent two phase lines is limited by the rod-type composite insulator 6 and the hydraulic shock absorber 7, and an insulating interval is provided between the adjacent two phase lines;

[0061] When the wires of the transmission line undergo horizontal galloping, the galloping energy of the wires between adjacent two phase lines is consumed by adjusting the damping coefficient of the hydraulic shock absorber 7.

[0062] Specifically, the three six-split damping spacer dampers 1 are respectively installed on three phase lines of the transmission line. The rod-type composite insulator 6 and the hydraulic shock absorber 7 work together. On the one hand, the distance between adjacent two phase lines is limited to maintain a safe phase spacing, and on the other hand, it plays the role of insulating interval to prevent phase-to-phase short circuit. When the wires of the transmission line gallop in the horizontal direction, energy will be generated. By adjusting the damping coefficient of the hydraulic shock absorber 7, its energy consumption ability can be changed.

[0063] Among them, the horizontal galloping energy E of the wires between adjacent two phase lines is;

[0064]

[0065] The energy consumed by controlling the hydraulic shock absorber 7 is:

[0066] E d = c·2π 2 f 2 A 2 T

[0067] E d ≥E

[0068] In the formula, m is the mass of the single-phase wire; E dis the energy of conductor galloping between two adjacent phase conductors consumed; c is the damping coefficient of the hydraulic shock absorber 7; f is the frequency of conductor galloping; A is the amplitude of conductor galloping; T is the period of conductor galloping. Therefore, by reasonably setting the damping coefficient c of the hydraulic shock absorber 7, the consumed energy E d is greater than or equal to the energy E generated by conductor galloping, thereby effectively suppressing the horizontal galloping of the conductor and reducing the damage and potential risks to the transmission line.

[0069] In a possible embodiment, the galloping of the transmission line is resisted by the damping ball 8 and the external viscous damper 9. The movement range of the counterweight ball 21 in the damping ball 8 is limited by the internal viscous damper 23.

[0070] Specifically, when the transmission line gallops, the force is transmitted to the damping ball 8 and the external viscous damper 9. The damping ball 8 moves along with the galloping of the line, and the viscous substance inside the external viscous damper 9 generates a damping force under the action of the movement of the damping ball 8, consuming the energy of the transmission line galloping, thereby resisting the galloping of the line. Inside the damping ball 8, the counterweight ball 21 will generate relative movement due to inertia during conductor galloping. At this time, the internal viscous damper 23 plays a role in limiting the movement range of the counterweight ball 21 through the damping force it generates. This can not only allow the counterweight ball 21 to move to a certain extent to consume energy, but also prevent its excessive movement from causing the damping ball 8 to lose balance or fail to effectively play the damping role. In the case of strong galloping of the transmission line, the damping ball 8 and the external viscous damper 9 work together to continuously consume the galloping energy, while the internal viscous damper 23 ensures that the movement of the counterweight ball 21 is within a controllable range, jointly ensuring the stability of the transmission line and reducing the damage caused by galloping.

[0071] In summary, each six-split damping spacer 1 of the present invention fixes the conductors through its six conductor clamps 2. Between two adjacent six-split damping spacers 1, the connecting plate 3, the connector 4, and the cross universal joint 5 play the role of connecting and transmitting forces. The rod-type composite insulator 6 can provide support and insulation at the same time. When the conductors vibrate under the action of wind force or other external forces, this vibration will be transmitted to the connecting plate 3, the connector 4, the cross universal joint 5, and the rod-type composite insulator 6 through the six-split damping spacer 1. The hydraulic shock absorbers 7 in the middle of the two rod-type composite insulators 6 can absorb and buffer part of the vibration energy and reduce the transmission of vibration. The damping ball 8 located at the center of the triangle formed by three six-split damping spacers 1 is connected to the six-split damping spacer 1 through the connecting rod 28. When vibration occurs, the movement of the damping ball 8 can consume part of the energy. The external viscous damper 9 is connected to the damping ball 8 and the hydraulic shock absorber 7 through the first connecting rod 10 and the second connecting rod 11 respectively. During the vibration process, the viscous liquid inside the external viscous damper 9 generates a damping force to further consume the vibration energy, thereby effectively suppressing the vibration of the conductors. When the force generated by the vibration of the conductors is transmitted to the rod-type composite insulator 6 and then to the hydraulic shock absorber 7, the hydraulic rod 24 will be subjected to a thrust or a pull. The outer end of the hydraulic rod 24 is fixedly connected to the rod-type composite insulator 6, and its inner end extends into the oil pressure part 27 and is fixedly connected to the hydraulic piston 25. When the hydraulic rod 24 moves, it will drive the hydraulic piston 25 to move inside the oil pressure part 27. Inside the oil pressure part 27, the flow of the liquid will generate resistance, thereby slowing down the movement speed of the hydraulic piston 25 and consuming the vibration energy. At the same time, the buffer spring 26 sleeved around the hydraulic rod 24 will also play a role. When the hydraulic rod 24 is compressed, the buffer spring 26 is compressed and stores energy; when the hydraulic rod 24 is stretched, the buffer spring 26 rebounds and releases energy. Through the movement of the hydraulic piston 25 inside the oil pressure part 27 and the expansion and contraction of the buffer spring 26, the energy generated by the vibration of the conductors is jointly absorbed and buffered, achieving the effect of shock absorption. When galloping occurs on the transmission line, the force will be transmitted to the damping ball 8 and the external viscous damper 9. The damping ball 8 will move with the galloping of the line, and the viscous substance inside the external viscous damper 9 generates a damping force under the action of the movement of the damping ball 8 to consume the energy of the galloping of the transmission line, thereby resisting the galloping of the line. Inside the damping ball 8, the counterweight ball 21 will generate relative movement due to inertia during the galloping of the conductors. The internal viscous damper 23 plays a role at this time, and limits the movement range of the counterweight ball 21 through the damping force generated by it. This can not only allow the counterweight ball 21 to move to a certain extent to consume energy, but also prevent its excessive movement from causing the damping ball 8 to lose balance or fail to effectively play the damping role. In the case of strong galloping of the transmission line, the damping ball 8 and the external viscous damper 9 work together to continuously consume the galloping energy, while the internal viscous damper 23 ensures that the movement of the counterweight ball 21 is within a controllable range, jointly ensuring the stability of the transmission line and reducing the damage caused by galloping.The present invention not only provides a hydraulic shock absorber 7 between adjacent damping spacer dampers, but also installs a damping ball 8 at the overall center, and connects the damping ball 8 to the hydraulic shock absorber 7 through a viscous damper; this design enables the three to work together to form a more comprehensive energy-consuming vibration damping network. When the conductor gallops, the hydraulic shock absorber 7 consumes the energy of the adjacent-phase conductor galloping, the damping ball 8 uses inertia to resist the overall galloping, and the viscous damper further enhances the energy-consuming effect; through multiple connecting plates 3, connectors 4 and a reasonable connection layout, the present invention enables the three six-split damping spacer dampers 1 to form a more stable overall structure with other components. The design of setting the damping ball 8 at the center and using a ball-and-socket joint 20 connection also helps to maintain the stability of the overall structure during conductor galloping and reduce the risk of damage to components caused by stress concentration generated by galloping; the present invention can more precisely control the vibration damping process by using the hydraulic shock absorber 7, and the effect of reducing the amplitude and period of conductor galloping may be more significant. Compared with some simple damping elements, it may have better performance in dealing with complex galloping conditions; the components of the present invention cooperate with each other and work together, making the performance of the entire device more optimized, and it can be adjusted according to the requirements of damping spacer dampers with different split numbers without major changes to the overall structure, with a wider scope of application and better flexibility and adaptability in dealing with different transmission line conditions.

[0072] Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A phase spacing device for preventing dancing in a transmission line, characterized in that: It comprises three six-split damping spacer bars (1), each of the six-split damping spacer bars (1) being provided with six wire clamps (2); Two connecting plates (3), two connectors (4), two cross universal joints (5) and two rod-type composite insulators (6) are arranged between two adjacent six-split damping spacer bars (1); the two connecting plates (3), the two connectors (4) and the two cross universal joints (5) are respectively located on both sides of the two rod-type composite insulators (6); each connecting plate (3) is connected to a cross universal joint (5) via a connector (4); the cross universal joint (5) is also connected to the end of the rod-type composite insulator (6); a hydraulic shock absorber (7) is arranged in the middle of the two rod-type composite insulators (6); A damping ball (8) is provided at the center of a triangle formed by three six-split damping spacer bars (1), and the damping ball (8) is respectively connected to the three six-split damping spacer bars (1) through three connecting rods (28); an external viscous damper (9), a first connecting rod (10) and a second connecting rod (11) are provided between the hydraulic shock absorber (7) and the damping ball (8); the first connecting rod (10) and the second connecting rod (11) are respectively connected to two sides of the external viscous damper (9), the damping ball (8) is connected to the first connecting rod (10), and the hydraulic shock absorber (7) and the second connecting rod (11) are connected through a connecting ring (12).

2. A transmission line anti-dancing phase spacing device according to claim 1, characterized in that: The cross universal joint (5) and the connector (4) are connected by pins; one end of the rod-type composite insulator (6) is connected to the cross universal joint (5), and the other end of the rod-type composite insulator (6) is connected to the rod head of the hydraulic shock absorber (7).

3. A transmission line anti-dancing phase spacing device according to claim 1, characterized in that: The six-split damping spacer (1) comprises a frame plate (13); the wire clamp (2) is mounted on the edge of the frame plate (13) by means of bolts; the frame plate (13) is fixedly connected to the connecting plate (3) by means of bolts; The number of the wire clamps (2) is six, and the six wire clamps (2) are distributed at equal intervals along the edge of the frame plate (13).

4. A transmission line anti-dancing phase spacing device according to claim 3, characterized in that: The wire clamp (2) comprises a clamp fixing portion (14), a wire accommodating portion (15) and a buckle closing portion (16); the wire clamp (2) is connected to the edge of the frame plate (13) through the clamp fixing portion (14); the wire accommodating portion (15) is ring-shaped; one end of the wire accommodating portion (15) is connected to the clamp fixing portion (14); the other end of the wire accommodating portion (15) is connected to the buckle closing portion (16); the buckle closing portion (16) and the side of the clamp fixing portion (14) are closed by a clamp and a clamping groove.

5. A power transmission line anti-dancing phase spacing device according to claim 1, characterized in that: The end of the connector (4) and the connecting plate (3) are fixedly connected by bolts; the cross universal joint (5) comprises a universal joint active fork (17), a universal joint cross shaft (18) and a universal joint passive fork (19); The center of the connector (4) is connected to one end of the universal joint active fork (17), the other end of the universal joint active fork (17) is connected to one end of the universal joint passive fork (19) through the universal joint cross shaft (18), and the other end of the universal joint passive fork (19) is connected to the end of the rod-type composite insulator (6).

6. A transmission line anti-dancing phase spacing device according to claim 1, characterized in that: A ball-and-socket joint (20) is provided at the connection point between the damping ball (8) and the first connecting rod (10), and at the connection point between the damping ball (8) and the connecting rod (28); A counterweight ball (21) is arranged inside the damping ball (8), and the counterweight ball (21) is suspended and fixed at the center of the damping ball (8) by a traction rope (29). A groove (22) is arranged at the bottom of the counterweight ball (21), and the groove (22) is connected to the ball shell of the damping ball (8) through four internal viscous dampers (23) in four directions, front, back, left and right.

7. A transmission line anti-dancing phase spacing device according to claim 6, characterized in that: The hydraulic shock absorber (7) comprises a hydraulic rod (24), a hydraulic piston (25), a buffer spring (26) and an oil pressure part (27); the outer end of the hydraulic rod (24) is directly and fixedly connected to the end of the rod-type composite insulator (6); the hydraulic piston (25) is located inside the oil pressure part (27), the inner end of the hydraulic rod (24) extends into the oil pressure part (27) and is fixedly connected to the hydraulic piston (25); the buffer spring (26) is arranged inside the oil pressure part (27), and the buffer spring (26) is sleeved on the periphery of the hydraulic rod (24).

8. The anti-dance phase spacing device for a power transmission line according to claim 1, characterized in that: The three six-split damping spacer bars (1) are respectively installed on three phase lines of a power transmission line; the distance between two adjacent phase lines is limited by the rod-type composite insulator (6) and the hydraulic shock absorber (7), and the two adjacent phase lines are insulated and spaced; When the conductor of the power transmission line gallops in the horizontal direction, the energy of the conductor galloping between two adjacent phase lines is consumed by adjusting the damping coefficient of the hydraulic shock absorber (7); The horizontal dancing energy E of the conductor between two adjacent phase lines is; The energy consumed by controlling the hydraulic shock absorber (7) is: E d =c·2π 2 f 2 A 2 T AND d ≥E Where m is the mass of the single-phase conductor; E d is the energy consumed by the wire dancing between two adjacent phase lines; c is the damping coefficient of the hydraulic shock absorber (7); f is the frequency of the wire dancing; A is the amplitude of the wire dancing; and T is the period of the wire dancing.

9. A transmission line anti-dancing phase spacing device according to claim 6, characterized in that: The dancing of the power transmission line is resisted by the damping ball (8) and the external viscous damper (9).

10. A transmission line anti-dancing phase spacing device according to claim 9, characterized in that: The movable range of the counterweight ball (21) in the damping ball (8) is limited by the internal viscous damper (23).

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