Power transmission line anti-galloping phase-to-phase spacing device

Abstract

The invention discloses a power transmission line anti-galloping phase-to-phase spacing device, which belongs to the technical field of power transmission lines, and is characterized in that two connecting plates, two connectors, two cross universal joints and two rod type composite insulators are arranged between two adjacent six-split damping spacers; each connecting plate is connected with a cross universal joint through a connector, and the cross universal joints are further connected with the ends of the rod type composite insulators. A hydraulic shock absorber is arranged in the middle of the two rod type composite insulators; a damping ball is arranged in the center of a triangle formed by the rod type composite insulators; an outer viscous damper, a first connecting rod and a second connecting rod are arranged between the hydraulic shock absorber and the damping ball; the first connecting rod and the second connecting rod are connected to the two sides of the outer viscous damper respectively, the damping ball is connected with the first connecting rod, and the hydraulic shock absorber is connected with the second connecting rod through the connecting ferrule. The problems that in the prior art, under the long-time line use condition, wires are damaged, the safety of a power transmission line is affected, and cost is high are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of power transmission lines, and in particular relates to a phase spacing device for preventing dancing of power transmission lines. Background Art

[0002] In the power system, transmission lines are important channels for electric energy transmission, and their 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, snowfall, and temperature changes, the conductors of transmission lines often dance. This dancing will not only increase the wear of the conductors and shorten their service life, but may also cause line breakage, short circuit and other faults, posing a serious threat to the stable operation of the power system. The dancing of transmission lines is a difficult point to control. The spacers between the split conductors only play an anti-dancing role for single-phase conductors. For three-phase AC and some transmission lines with different phases, interphase spacers should be used to fix the conductors of each phase so that the conductors of each phase form a whole, thereby achieving the effect of suppressing the dancing of the line.

[0003] In the prior art, there are various forms of interphase spacers, including three-split interphase spacers, three-split anti-dancing spacers or four-split anti-dancing spacers. However, some of the existing interphase spacers only use composite insulators to fix the distance between two adjacent phases, and some have a rotating joint added at the connection, but there is no shock-absorbing device between the two spacers, and most of them only limit the distance between phases, while ignoring the impact of large-scale dancing of the wire on the strength of the wire itself. This will cause damage to the wire under long-term line use, which will directly affect the safe operation of the transmission line and increase the cost of daily maintenance. Summary of the invention

[0004] To this end, the present invention provides a transmission line anti-dancing phase spacing device to solve the problem of traditional technology that long-term line use causes damage to the conductor, affects the safe operation of the transmission line, and increases maintenance costs.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: a transmission line anti-dancing phase spacing device, comprising three six-split damping spacers, each of the six-split damping spacers is provided with six conductor clamps; Two connecting plates, two connectors, two cross universal joints and two rod-type composite insulators are arranged between two adjacent six-split damping spacer bars; 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 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 arranged in the middle of the two rod-type composite insulators; A damping ball is provided at the center of the triangle formed by the three rod-type composite insulators, and the damping ball is respectively connected to the three six-split damping spacer rods 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 ring.

[0006] As a preferred solution for the anti-dancing phase spacing device of the transmission line, the cross universal joint and the connector are connected by pins; 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.

[0007] As a preferred solution of the anti-dancing phase spacing device for the transmission line, the six-split damping spacer includes a frame plate; the wire clamp is installed on the edge of the frame plate by bolts; the frame plate is fixedly connected to the connecting plate by bolts; The number of the wire clamps is six, and the six wire clamps are distributed at equal intervals along the edge of the frame plate.

[0008] As a preferred solution for the anti-dancing phase spacing device of the transmission line, the wire clamp includes a clamp fixing part, a wire accommodating part and a snap-on closing part; the wire clamp is connected to the edge of the frame plate through the clamp fixing part, the wire accommodating part is ring-shaped, one end of the wire accommodating part is connected to the clamp fixing part, and the other end of the wire accommodating part is connected to the snap-on closing part, and the snap-on closing part and the side of the clamp fixing part are closed by a clamp and a groove.

[0009] As a preferred solution of the anti-dancing phase spacing device for power transmission lines, the end of the connector and the connecting plate are fixedly connected by bolts; the cross universal joint includes a universal joint active fork, a universal joint cross shaft and a universal joint passive fork; The center of the connector is connected to one end of the active fork of the universal joint, the other end of the active fork of the universal joint is connected to one end of the passive fork of the universal joint through the universal joint cross shaft, and the other end of the passive fork of the universal joint is connected to the end of the rod-type composite insulator.

[0010] As a preferred solution of the anti-dancing phase spacing device for power transmission lines, a ball-and-socket joint is 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; A counterweight ball is arranged inside the damping ball, and the counterweight ball is fixed at the center of the damping ball by a traction rope. A groove is arranged at the bottom of the counterweight ball, and the four directions of the groove, front, back, left, and right, are connected to the ball shell of the damping ball through four internal viscous dampers.

[0011] As a preferred solution for the anti-dance phase spacing device of the transmission line, 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 located 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 the buffer spring is sleeved on the periphery of the hydraulic rod.

[0012] As a preferred solution of the anti-dancing phase spacing device for the transmission line, three of the six-split damping spacer bars are respectively installed on the three phase lines of the transmission line; the distance between two adjacent phase lines is limited by the rod-type composite insulator and the hydraulic shock absorber, 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;

[0013] Horizontal dancing energy of conductors between two adjacent phase lines for; ; The energy consumed by controlling the hydraulic shock absorber is: ; ; Where m is the mass of the single-phase conductor; The energy consumed by the conductor dancing between two adjacent phase lines; is the damping coefficient of the hydraulic shock absorber; The frequency of the wire dancing; The amplitude of the dancing wire; For the cycle of the wire dancing.

[0014] As a preferred solution of the anti-dancing phase spacing device for power transmission lines, the dancing of the power transmission lines is resisted by the damping balls and the external viscous damper.

[0015] As a preferred solution of the anti-dancing phase spacing device for a power transmission line, the movable range of the counterweight ball in the damping ball is limited by the internal viscous damper.

[0016] The present invention has the following advantages: The present invention not only sets hydraulic shock absorbers between adjacent damping spacers, but also installs a damping ball at the center of the whole, and connects the damping ball to the hydraulic shock absorber through a viscous damper; this design enables the three to work together to form a more comprehensive energy dissipation and vibration reduction network. When the wire dances, the hydraulic shock absorber consumes the dancing energy of the adjacent phase wires, the damping ball uses inertia to resist the overall dancing, and the viscous damper further enhances the energy dissipation effect; The overall structural stability of the present invention is enhanced: through multiple connecting plates, connectors and reasonable connection layout, the three six-split damping spacers and other components form a more stable overall structure. The damping ball is arranged at the center and the ball-and-socket joint connection is adopted, which also helps to maintain the stability of the overall structure when the wire dances, and reduces the risk of damage to the components caused by stress concentration caused by the dance; The present invention utilizes a hydraulic shock absorber to more accurately control the vibration reduction process, so that the amplitude and period of the conductor galloping can be reduced more significantly. Compared with some simple damping elements, it may have better performance when dealing with complex galloping conditions. The various components of the present invention cooperate and work together to optimize the performance of the entire device, and can be adjusted according to the requirements of damping spacer rods with different split numbers without major changes to the overall structure. The scope of application is wider, and it has better flexibility and adaptability when dealing with different transmission line conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of a phase spacing device for preventing dancing of a transmission line provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a damping ball in a phase-to-phase spacing device for preventing dancing in a transmission line provided in an embodiment of the present invention; Figure 3 It is a schematic diagram of the structure of a cross universal joint in a phase spacing device for preventing dancing of a transmission line provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the combined structure of a six-split damping spacer bar, a connecting plate and a connector provided in an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the conductor clamp in the anti-dancing phase spacing device of the transmission line provided in an embodiment of the present invention; Figure 6A schematic diagram of a ball-and-socket joint at the connection of a damping ball, a connecting rod and a connecting bar provided in an embodiment of the present invention; Figure 7 It is a schematic diagram of the connection between the internal viscous damper and the counterweight ball in the anti-dancing phase spacing device of the transmission line provided in an embodiment of the present invention; Figure 8 A schematic diagram of the connection between the damping ball and the hydraulic shock absorber provided in an embodiment of the present invention; Fig. 9 The figure is a schematic diagram of the internal structure of the hydraulic shock absorber in the anti-dancing phase spacing device of the transmission line provided in the embodiment of the present invention.

[0019] In the figure, 1, six-split damping spacer rod; 2, wire clamp; 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 ring; 13, frame plate; 14, clamp fixing part; 15, wire accommodating part; 16, snap closing part; 17, universal joint active fork; 18, universal joint cross shaft; 19, universal joint passive fork; 20, ball and 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, traction rope. DETAILED DESCRIPTION

[0020] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 and Figure 2 , an embodiment of the present invention provides a transmission line anti-dancing phase spacing device, comprising three six-split damping spacers 1, each of the six-split damping spacers 1 is provided with six conductor clamps 2; Among them, 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, two connectors 4 and 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 arranged in the middle of the two rod-type composite insulators 6; Among them, a damping ball 8 is provided at the center of the triangle formed by the three rod-type composite insulators 6, and the damping ball 8 is respectively connected to the three six-split damping spacer rods 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 the 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.

[0022] Specifically, each six-split damping spacer 1 fixes the wire through its six wire 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 connection and force transmission. The rod-type composite insulator 6 can provide support and insulation at the same time. When the wire is vibrated by wind 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 absorber 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 the three rod-type composite insulators 6 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, further consuming the vibration energy, thereby effectively suppressing the vibration of the wire.

[0023] See also Figure 3 In this embodiment, 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. 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 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.

[0024] Specifically, the cross universal joint 5 and the connector 4 are connected by pins, which allows them to have a certain degree of freedom of movement in multiple directions, and can better adapt to the complex angle changes and force transmission direction changes caused by the vibration of the wire. One end of the rod-type composite insulator 6 is connected to the universal joint passive 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.

[0025] Among them, the end of the connector 4 and the connecting plate 3 are fixedly connected by bolts, which ensures the stability of the connection and enables 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 active fork of the universal joint 17, and the other end of the active fork of the universal joint 17 is connected to one end of the passive fork of the universal joint 19 through the universal joint cross shaft 18, realizing the transmission and conversion of force and motion. The other end of the passive fork of the universal joint 19 is connected to the end of the rod-type composite insulator 6 to transmit the vibration to the rod-type composite insulator 6. When the conductor vibrates due to external force, the vibration is first transmitted to the connecting plate 3, then to the connector 4 through the bolts, and then to the rod-type composite insulator 6 through the cross universal joint 5, and finally reaches the hydraulic shock absorber 7 for shock absorption. During the whole process, various components work together to reduce the impact of vibration on the conductor.

[0026] See also 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 spaced along the edge of the frame plate 13.

[0027] Specifically, the frame plate 13 serves as the main structure and provides an installation base for the wire clamp 2. The wire clamp 2 is installed on the edge of the frame plate 13 by bolts and is evenly spaced, so that the wire can be clamped evenly to ensure that the position of the wire is stable and the force is evenly applied. When the wire is vibrated by an external force, the force of the vibration will be transmitted to the wire clamp 2, and then transmitted to the frame plate 13 through bolts. The frame plate 13 is fixedly connected to the connecting plate 3 by bolts, so that the vibration is further transmitted to adjacent connecting components, such as the connecting plate 3, the connector 4, the cross universal joint 5, etc., to achieve the coordinated shock absorption effect of the entire damping spacer system. In actual applications, when a certain section of the wire vibrates, the wire clamp 2 of the six-split damping spacer 1 on the section of the wire first senses and receives the vibration force, and then disperses and weakens the vibration through the frame plate 13 and the connecting components to reduce damage to the wire.

[0028] See also Figure 5In this embodiment, the wire clamp 2 includes 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, and the other end of the wire accommodating portion 15 is connected to the buckle closing portion 16, and the buckle closing portion 16 and the side of the clamp fixing portion 14 are closed by a clamp and a groove.

[0029] Specifically, the clamp fixing portion 14 is used to connect the wire clamp 2 to the edge of the frame plate 13 to ensure the stable installation of the clamp. The wire accommodating portion 15 is ring-shaped and provides a space for placing the wire. When the wire needs to be clamped, the wire is placed in the wire accommodating portion 15. The buckle closing portion 16 and the clamp fixing portion 14 are closed through the cooperation of the clamp head and the clamping groove. After the wire is placed, the buckle closing portion 16 is closed to tightly confine the wire inside the wire accommodating portion 15 to prevent the wire from slipping out.

[0030] See also Figure 6 , Figure 7 and Figure 8 In this embodiment, a ball-and-socket joint 20 is provided 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; A counterweight ball 21 is provided inside the damping ball 8, and the counterweight ball 21 is hoisted and fixed at the center of the damping ball 8 by a traction rope 29. A groove 22 is provided at the lower part of the counterweight ball 21, and the four directions of the groove 22, front, back, left, and right, are connected to the ball shell of the damping ball 8 through four internal viscous dampers 23.

[0031] Specifically, the ball-and-socket joint 20 provided at the connection between the damping ball 8 and the first connecting rod 10 and the connecting rod 28 makes the connection have certain flexibility and multi-angle activity 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 center position by a traction rope 29. When the vibration of the wire drives the entire structure to vibrate, the counterweight ball 21 will produce relative movement due to inertia. The groove 22 at the bottom of the counterweight ball 21 is connected to the ball shell of the damping ball 8 through four internal viscous dampers 23. When the counterweight ball 21 moves relatively, the internal viscous damper 23 will generate a damping force, consume vibration energy, and thus play a role in shock absorption. When the wire is subjected to violent vibration caused by external force, the damping ball 8 will move accordingly, and the counterweight ball 21 will produce relative displacement with the ball shell under the action of inertia, and the internal viscous damper 23 will play a role, consume vibration energy, and reduce the impact on the wire.

[0032] See also Fig. 9In 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 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.

[0033] Specifically, when the force generated by the vibration of the conductor 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 thrust or tension. 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 fixed to the hydraulic piston 25. When the hydraulic rod 24 moves, it will drive the hydraulic piston 25 to move in the oil pressure part 27. In the oil pressure part 27, the flow of liquid will generate resistance, thereby slowing down the movement speed of the hydraulic piston 25 and consuming vibration energy. At the same time, the buffer spring 26 sleeved on the outer periphery of 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 in the oil pressure part 27 and the expansion and contraction of the buffer spring 26, the energy generated by the vibration of the conductor is absorbed and buffered together, achieving a shock-absorbing effect.

[0034] In a possible embodiment, three of the six-split damping spacer bars 1 are respectively installed on three phase lines of the 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 .

[0035] Specifically, three six-split damping spacer bars 1 are respectively installed on the three phase lines of the transmission line. The rod-type composite insulator 6 and the hydraulic shock absorber 7 work together to limit the distance between two adjacent phase lines and maintain a safe spacing between phases. On the other hand, they play the role of insulation spacing to prevent short circuits between phases. When the conductors of the transmission line dance in the horizontal direction, energy will be generated. By adjusting the damping coefficient of the hydraulic shock absorber 7, its energy consumption capacity can be changed.

[0036] Among them, the horizontal dancing energy of the conductor between two adjacent phase lines for; ; The energy consumed by controlling the hydraulic shock absorber 7 is: ; ; Where m is the mass of the single-phase conductor; The energy consumed by the conductor dancing between two adjacent phase lines; is the damping coefficient of the hydraulic shock absorber 7; The frequency of the dancing wire; The amplitude of the dancing wire; is the period of wire dancing. Thus, by reasonably setting the damping coefficient c of the hydraulic shock absorber 7, the energy consumed is Greater than or equal to the energy E generated by the conductor galloping, thereby effectively suppressing the horizontal galloping of the conductor and reducing damage and potential risks to the transmission line.

[0037] In a possible embodiment, the dancing of the power transmission line is resisted by the damping ball 8 and the external viscous damper 9. The moving range of the weight ball 21 in the damping ball 8 is limited by the internal viscous damper 23.

[0038] Specifically, when the power transmission line dances, the force will be transmitted to the damping ball 8 and the external viscous damper 9. The damping ball 8 will move with the dance of the line, and the viscous material inside the external viscous damper 9 will generate a damping force under the action of the movement of the damping ball 8, consuming the energy of the dance of the power transmission line, thereby resisting the dance of the line. Inside the damping ball 8, the counterweight ball 21 will produce relative movement due to inertia when the wire dances. The internal viscous damper 23 plays a role at this time, and limits the range of motion of the counterweight ball 21 through the damping force it generates. This can allow the counterweight ball 21 to move to a certain extent to consume energy, and prevent its excessive movement from causing the damping ball 8 to lose balance or fail to effectively play a damping role. In the case of strong dance of the power transmission line, the damping ball 8 and the external viscous damper 9 work together to continuously consume the dance 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 power transmission line and reducing the damage caused by the dance.

[0039] In summary, each six-split damping spacer 1 of the present invention fixes the wire through its six wire clamps 2. Between two adjacent six-split damping spacer bars 1, the connecting plate 3, the connector 4 and the cross universal joint 5 play the role of connection and force transmission. The rod-type composite insulator 6 can provide support and also play the role of insulation. When the wire is vibrated by wind 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 bar 1. The hydraulic shock absorber 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 the three rod-type composite insulators 6 is connected to the six-split damping spacer bar 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, further consuming the vibration energy, thereby effectively suppressing the vibration of the conductor. When the force generated by the vibration of the conductor 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 thrust or tension. 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 fixed to the hydraulic piston 25. When the hydraulic rod 24 moves, it will drive the hydraulic piston 25 to move in the oil pressure part 27. In the oil pressure part 27, the flow of liquid will generate resistance, thereby slowing down the movement speed of the hydraulic piston 25 and consuming vibration energy. At the same time, the buffer spring 26 sleeved on the outer periphery of 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 in the oil pressure part 27 and the expansion and contraction of the buffer spring 26, the energy generated by the vibration of the conductor is absorbed and buffered together, achieving a shock-absorbing effect. When the power transmission line dances, the force will be transmitted to the damping ball 8 and the external viscous damper 9. The damping ball 8 will move with the dance of the line, and the viscous material inside the external viscous damper 9 will generate a damping force under the action of the movement of the damping ball 8, consuming the energy of the dance of the power transmission line, thereby resisting the dance of the line. Inside the damping ball 8, the counterweight ball 21 will produce relative movement due to inertia when the wire dances. The internal viscous damper 23 plays a role at this time, and limits the range of motion of the counterweight ball 21 through the damping force it generates. This can allow the counterweight ball 21 to move to a certain extent to consume energy, and prevent its excessive movement from causing the damping ball 8 to lose balance or fail to effectively play a damping role. In the case of strong dancing of the transmission line, the damping ball 8 and the external viscous damper 9 work together to continuously consume the dancing 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 the dancing.The present invention not only sets a hydraulic shock absorber 7 between adjacent damping spacers, but also installs a damping ball 8 at the center of the whole, 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 dissipation and vibration reduction network. When the wire dances, the hydraulic shock absorber 7 consumes the dancing energy of the adjacent phase wires, the damping ball 8 uses inertia to resist the overall dancing, and the viscous damper further enhances the energy dissipation effect; the present invention uses multiple connecting plates 3, connectors 4 and a reasonable connection layout to make the three six-split damping spacers 1 and other components form a more stable overall structure. The design of arranging a damping ball 8 at the center and connecting with a ball-and-socket joint 20 also helps to maintain the stability of the overall structure when the conductor dances, and reduces the risk of damage to components due to stress concentration caused by the dancing. The present invention utilizes the hydraulic shock absorber 7 to more accurately control the vibration reduction process, so that the amplitude and period of the conductor dancing can be reduced more significantly. Compared with some simple damping elements, it may have better performance when dealing with complex dancing conditions. The various components of the present invention cooperate and work together to optimize the performance of the entire device, and can be adjusted according to the requirements of damping spacers with different split numbers without major changes to the overall structure. It has a wider range of applications and better flexibility and adaptability when dealing with different transmission line conditions.

[0040] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed 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 provided 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 provided in the middle of the two rod-type composite insulators (6); A damping ball (8) is provided at the center of the triangle formed by the three rod-type composite insulators (6); the damping ball (8) is respectively connected to the three six-split damping spacer rods (1) via 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 via 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) via 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 via 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) via 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 provided inside the damping ball (8), and the counterweight ball (21) is suspended and fixed at the center of the damping ball (8) via a traction rope (29). A groove (22) is provided at the bottom of the counterweight ball (21), and the groove (22) is connected to the outer shell of the damping ball (8) via four internal viscous dampers (23) at four positions, 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 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); Horizontal dancing energy of conductors between two adjacent phase lines for: ； The energy consumed by controlling the hydraulic shock absorber (7) is: ； ； Where m is the mass of the single-phase conductor; The energy consumed by the conductor dancing between two adjacent phase lines; is the damping coefficient of the hydraulic shock absorber (7); The frequency of the dancing wire; The amplitude of the dancing wire; For the cycle 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 movement range of the weight ball (21) in the damping ball (8) is limited by the internal viscous damper (23).

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