Vibration reduction suppression device for connecting power transmission tower and insulator

Abstract

The utility model relates to the technical field of power transmission lines of a power grid, and provides a vibration attenuation suppression device for connecting a power transmission tower and an insulator, which comprises a friction damping box, a friction damping fin, a connecting hook, a first mounting hook, a second mounting hook, a plurality of springs, a viscous damper, a universal support, a hook support and a mounting support, the friction damping box is provided with a mounting cavity and a receding opening. The friction damping fin is mounted in the mounting cavity; the hook supports and the friction damping fins are arranged at intervals; a connecting hook is arranged on the hook support; a plurality of universal supports are mounted on the hook support; a plurality of mounting supports are mounted on the friction damping fin; a plurality of viscous dampers are connected in parallel between the universal support and the mounting support; the plurality of first mounting hooks are arranged on the friction damping fin; a plurality of second mounting hooks are arranged on the friction damping box; and a spring is hung between the first mounting hook and the second mounting hook. According to the utility model, the structure of the vibration reduction suppression device is optimally designed, so that the vibration reduction effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of power grid transmission lines, in particular to a vibration reduction and suppression device for connecting a transmission tower and an insulator. Background Art

[0002] Transmission lines are categorized by their installation method as overhead lines and cable lines. Overhead lines are the primary means of power transmission worldwide, and overhead transmission conductors are an essential component of these lines. With the development of the power industry and the continuous increase in grid voltage levels, the conductor cross-sections, suspension point heights, and spans used in UHV transmission lines have all increased. Wind-induced vibrations are severe, significantly impacting the entire transmission tower and line system. These vibrations can lead to fatigue damage to line hardware, insulators, and transmission lines, and further to the collapse of the tower and line system, posing a significant threat to the safe operation of UHV transmission lines. The large-scale construction of AC and DC power grids has placed higher demands on the level of vibration isolation technology used in these lines. Long-span transmission lines, in particular, present a weak link in vibration isolation design. It is necessary to fully consider the hazards of wind loads during the construction phase of long-span lines and implement specialized vibration isolation measures to suppress conductor vibration and ensure the safety and reliability of UHV projects.

[0003] Currently, there is limited research on vibration suppression devices connecting transmission towers and insulators. Existing devices have irrational structural design, resulting in poor vibration reduction effectiveness. A more effective vibration suppression device for connecting transmission towers and insulators, thereby reducing safety issues caused by conductor sway, has become a pressing technical challenge. Utility Model Content

[0004] The purpose of the utility model is to provide a vibration reduction and suppression device for connecting a transmission tower and an insulator, so as to solve the problem that the vibration reduction and suppression device in the prior art has a poor vibration reduction effect.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a vibration reduction and suppression device for connecting a transmission tower and an insulator, the vibration reduction and suppression device comprising: a friction damping box, the friction damping box having an installation cavity and a clearance opening connected to the installation cavity, the friction damping box being used to be connected to the transmission tower; a friction damping plate, the friction damping plate being installed in the installation cavity and being rotatable relative to the friction damping box, a part of the end surface of the friction damping plate being exposed through the clearance opening; a hook support, the hook support being spaced apart from the exposed end surface of the friction damping plate; a connecting hook, a connecting hook for connecting to the insulator is provided on the end surface of the hook support facing away from the friction damping plate; a universal support, a plurality of universal supports being spaced apart and installed on the end surface of the hook support facing the friction damping plate, each universal support being rotatable 360° relative to the hook support, and the rotation axis of the universal support is aligned with the direction of the friction damping plate of the hook support. The end faces of the plates are perpendicular; mounting supports, multiple mounting supports are installed at intervals on the exposed end face of the friction damping plate; viscous dampers, multiple viscous dampers are connected in parallel between the universal support and the mounting support, the first ends of the multiple viscous dampers are hinged to the multiple universal supports in a one-to-one correspondence, and the second ends of the multiple viscous dampers are hinged to the multiple mounting supports in a one-to-one correspondence; first mounting hooks, multiple first mounting hooks are arranged at intervals on the exposed end face of the friction damping plate, and the multiple first mounting hooks are located on the outside of the multiple mounting supports; second mounting hooks, multiple second mounting hooks are arranged at intervals on the end face of the friction damping box with a makeshift opening; along the rotation direction of the friction damping plate, multiple first mounting hooks and multiple second mounting hooks are alternately arranged; multiple springs, a spring is hung between each adjacent first mounting hook and second mounting hook.

[0006] Furthermore, friction damping particles are installed in the installation cavity of the friction damping box; the viscous damper is a reset-type viscous damper, and the consistency of the viscous fluid of the viscous damper is adjustable; and the damping coefficient of the spring is adjustable.

[0007] Furthermore, the vibration reduction and suppression device also includes: a mounting shaft, a plurality of mounting shafts are arranged at intervals on the end surface of the hook support facing the friction damping plate, and a threaded structure is provided at the end of each mounting shaft away from the hook support; each universal joint support is mounted on a mounting shaft through two deep groove ball bearings; a plurality of nuts, the plurality of nuts are threadedly connected to the threaded structures of the plurality of mounting shafts in a one-to-one correspondence to fix the corresponding universal joint supports and deep groove ball bearings on the corresponding mounting shafts.

[0008] Furthermore, the friction damping plate includes a first disc and a second disc connected along the extension direction of its rotation axis, and the diameter of the first disc is larger than the diameter of the second disc; the friction damping box includes a box body and a box cover, the box body and the box cover are detachably connected, the box body has an installation cavity, the size of the installation cavity is adapted to the size of the first disc, and the box cover has a clearance opening, the size of the clearance opening is adapted to the size of the second disc.

[0009] Furthermore, bolt holes are provided on both the box body and the box cover, and the vibration reduction and suppression device further comprises: bolts, through which the box body and the box cover are connected together.

[0010] Furthermore, each mounting support and each first mounting hook are arranged on the axial end face of the second disc away from the first disc; along the radial direction of the second disc, a first mounting hook is correspondingly provided on the outer side of each mounting support.

[0011] Furthermore, the first end of the viscous damper is hinged to the universal support through a first pin and a first cotter pin; the second end of the viscous damper is hinged to the mounting support through a second pin and a second cotter pin.

[0012] Furthermore, multiple mounting supports are arranged at equal intervals along the outer peripheral side of the rotation axis of the friction damping plate; the distance between each adjacent two universal supports is equal; the distance between each adjacent two first mounting hooks is equal; and the distance between each adjacent first mounting hook and second mounting hook is equal.

[0013] Furthermore, the number of the universal support, the mounting support, the viscous damper, the first mounting hook, and the second mounting hook is four each, and the number of the springs is eight.

[0014] Furthermore, a connection hole is provided on the friction damping box, and the connection hole is used to install the vibration reduction and suppression device on the cross arm of the transmission tower.

[0015] By applying the technical solution of the utility model, the structure of the vibration reduction and suppression device connecting the transmission tower and the insulator is optimized, and the vibration reduction effect is better.

[0016] Specifically, when the tower-line system is affected by strong winds, the split conductors will dance with the wind. This dance is irregular and chaotic, swinging both left and right as well as up and down. The insulator string serves as the midpoint connecting the split conductors on the windward and leeward sides of a transmission tower. As the split conductors on both sides swing left and right, the insulator string is subjected to a torque around the insulator string. Laterally, when the split conductors drive the insulator string to swing left and right, the viscous dampers connected to the hook supports act as a damper, mitigating the left-right swing of the split conductors. Vertically, when the split conductors drive the insulator string to swing up and down, the multiple viscous dampers connected to the hook supports expand and contract together to create a damping effect, mitigating the up-and-down swing of the split conductors. When the split conductors on the windward and leeward sides of a transmission tower generate torque on the insulator strings, the friction damping plates connected to the viscous dampers act as friction dampers in the friction damping box. Simultaneously, the springs provide both torsional damping and resetting, mitigating the torque exerted by the split conductors on the insulator strings. When the conductors swing diagonally upward or downward, some of the multiple viscous dampers contract, while others extend and generate damping, mitigating the upward or downward swing of the split conductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0018] Figure 1 A schematic diagram of a three-dimensional assembly structure of a vibration reduction and suppression device for connecting a transmission tower and an insulator provided in an optional embodiment of the utility model is shown;

[0019] Figure 2 Shown Figure 1 Schematic diagram of the disassembled structure;

[0020] Figure 3 Shown Figure 1 A cross-sectional view of the assembly location of the viscous damper, the second pin, the hook support, the universal support, the mounting shaft, the first deep groove ball bearing, and the second deep groove ball bearing of the vibration reduction suppression device;

[0021] Figure 4 A schematic diagram of the connection structure between the vibration reduction and suppression device provided by the present invention and the transmission tower is shown;

[0022] Figure 5 Shown Figure 4An enlarged structural diagram of the connection between the vibration suppression device and the cross arm of the transmission tower;

[0023] Description of Figure Numbers:

[0024] 100. Vibration reduction and suppression device; 1. Friction damping box; 101. Box body; 111. Mounting cavity; 102. Box cover; 112. Clearance opening; 2. Friction damping plate; 21. First disc; 22. Second disc; 3. Connecting hook; 31. First mounting hook; 32. Second mounting hook; 4. First pin; 5. Spring; 6. First cotter pin; 7. Viscous damper; 8. Nut; 9. Universal support; 10. Second pin; 11. Second cotter pin; 12. First deep groove ball bearing; 13. Second deep groove ball bearing; 14. Hook support; 15. Mounting support; 16. Mounting shaft; 17. Connecting hole; 200. Transmission tower; 201. Crossarm; 300. Insulator string; 400. Split conductor. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. Unless otherwise specified, the technical means used in the examples are conventional means well known to those skilled in the art.

[0026] like Figures 1 to 3As shown, an optional embodiment of the present invention provides a vibration reduction and suppression device for connecting a transmission tower and an insulator, the vibration reduction and suppression device 100 includes a friction damping box 1, a friction damping plate 2, a connecting hook 3, a first mounting hook 31, a second mounting hook 32, a plurality of springs 5, a viscous damper 7, a universal support 9, a hook support 14 and a mounting support 15, the friction damping box 1 has a mounting cavity 111 and a clearance opening 112 connected to the mounting cavity 111, the friction damping box 1 is used to be connected to the transmission tower; the friction damping plate 2 is installed in the mounting cavity 111 and can rotate relative to the friction damping box 1, and part of the end surface of the friction damping plate 2 is exposed through the clearance opening 112; the hook support 14 is spaced apart from the exposed end surface of the friction damping plate 2; the end surface of the hook support 14 facing away from the friction damping plate 2 is provided with a connecting hook 3 for connecting to the insulator; a plurality of universal supports 9 are installed at intervals on the end surface of the hook support 14 facing the friction damping plate 2, and each universal support 9 can be relative to The hook support 14 rotates 360°, and the rotation axis of the universal support 9 is perpendicular to the end face of the hook support 14 facing the friction damping plate 2; multiple mounting supports 15 are installed at intervals on the exposed end face of the friction damping plate; multiple viscous dampers 7 are connected in parallel between the universal support 9 and the mounting support 15, and the first ends of the multiple viscous dampers 7 are hinged to the multiple universal supports 9 one-to-one, and the second ends of the multiple viscous dampers 7 are hinged to the multiple mounting supports 15 one-to-one; multiple first mounting hooks 31 are arranged at intervals on the exposed end face of the friction damping plate 2, and the multiple first mounting hooks 31 are located on the outside of the multiple mounting supports 15; multiple second mounting hooks 32 are arranged at intervals on the end face of the friction damping box 1 with the clearance opening 112; along the rotation direction of the friction damping plate 2, multiple first mounting hooks 31 and multiple second mounting hooks 32 are alternately arranged; a spring 5 is hung between each adjacent first mounting hook 31 and a second mounting hook 32.

[0027] The present application optimizes the design of the structure of the vibration reduction and suppression device connecting the transmission tower and the insulator, thereby achieving a better vibration reduction effect.

[0028] Optionally, friction damping particles are installed in the mounting cavity 111 of the friction damping box 1. In this way, the damping between the friction damping box 1 and the friction damping plate 2 can be further increased.

[0029] Optionally, the damping between the friction damping box 1 and the friction damping plate 2 can be adjusted by adjusting the amount of friction damping particles.

[0030] Optionally, the viscous damper 7 is a resettable viscous damper. In this way, when the split conductor 400 is no longer affected by wind force, the viscous damper 7 can automatically reset.

[0031] Optionally, the consistency of the viscous fluid of the viscous damper 7 is adjustable. In this way, the damping of the viscous damper 7 can be adjusted by adjusting the consistency of the viscous fluid according to actual needs.

[0032] Optionally, the damping coefficient of spring 5 is adjustable. In this way, the damping of spring 5 can be adjusted according to actual needs.

[0033] The damping of the vibration reduction and suppression device provided in the preferred embodiment of the present application can be adjusted according to actual needs.

[0034] Alternatively, as Figure 2 and Figure 3 As shown, the vibration reduction and suppression device also includes a mounting shaft 16 and multiple nuts 8. Multiple mounting shafts 16 are spaced apart and arranged on the end surface of the hook support 14 facing the friction damping plate 2. Each mounting shaft 16 has a threaded structure on the end facing away from the hook support 14. Each universal joint 9 is mounted on a mounting shaft 16 via two deep groove ball bearings. Multiple nuts 8 are threadedly connected to the threaded structures of the mounting shafts 16 in a one-to-one correspondence, thereby securing the corresponding universal joint 9 and deep groove ball bearing to the corresponding mounting shaft 16. This allows the universal joint 9 to rotate relative to the hook support 14, facilitating easy installation, a simple structure, and low cost.

[0035] Alternatively, as Figure 1 and Figure 2 As shown, the friction damping plate 2 includes a first disc 21 and a second disc 22 connected along the extension direction of its rotation axis. The diameter of the first disc 21 is larger than the diameter of the second disc 22. The friction damping box 1 includes a box body 101 and a box cover 102. The box body 101 and the box cover 102 are detachably connected. The box body 101 has a mounting cavity 111 whose size matches the size of the first disc 21. The box cover 102 has a clearance opening 112 whose size matches the size of the second disc 22. This structure is simple, low-cost, and easy to connect. The friction damping box 1 and the friction damping plate 2 can be reliably assembled together, and the friction damping plate 2 can rotate relative to the friction damping box 1, generating damping through friction.

[0036] Optionally, bolt holes are provided on both the box body 101 and the box cover 102, and the vibration reduction and suppression device further comprises bolts, which connect the box body 101 and the box cover 102 together. In this way, the structure is simple, the cost is low, and the connection is convenient.

[0037] Alternatively, as Figure 1 and Figure 2As shown, each mounting support 15 and each first mounting hook 31 are arranged on the axial end face of the second disc 22 away from the first disc 21; along the radial direction of the second disc 22, a first mounting hook 31 is correspondingly provided on the outer side of each mounting support 15. Such an arrangement is more reasonable and has a better vibration reduction effect.

[0038] Alternatively, as Figures 1 to 3 As shown, the first end of the viscous damper 7 is hinged to the universal support 9 via a first pin 4 and a first cotter pin 6; the second end of the viscous damper 7 is hinged to the mounting support 15 via a second pin 10 and a second cotter pin 11. This provides a simple structure, low cost, and easy assembly.

[0039] Alternatively, as Figure 1 As shown, multiple mounting supports 15 are arranged at equal intervals along the outer peripheral side of the rotation axis of the friction damping plate 2; the distance between each adjacent two universal supports 9 is equal; the distance between each adjacent two first mounting hooks 31 is equal; the distance between each adjacent first mounting hook 31 and second mounting hook 32 is equal. Such an arrangement is more reasonable and has a better vibration reduction effect.

[0040] Alternatively, as Figure 1 and Figure 2 As shown, the number of universal support 9, mounting support 15, viscous damper 7, first mounting hook 31, and second mounting hook 32 is four each, and the number of springs 5 is eight. In this way, by optimizing the number of components, both cost savings and vibration reduction effects are achieved.

[0041] like Figure 4 and Figure 5 As shown, the split conductor 400 is connected to the insulator string 300 , and the insulator string 300 is connected to the connecting hook 3 of the hook support 14 .

[0042] The principle and function of the vibration reduction and suppression device provided in this application are as follows: When the tower-line system is affected by strong winds, the split conductors 400 will dance with the wind. The dancing of the split conductors 400 is irregular and chaotic, swinging both left and right as well as up and down. The insulator string 300 serves as the midpoint connecting the split conductors 400 on the windward and leeward sides of a transmission tower 200. As the split conductors 400 on the windward and leeward sides of the transmission tower 200 swing left and right respectively, with the insulator string 300 as the midpoint, the insulator string 300 is subjected to a torque.

[0043] From a horizontal perspective, when the split conductor 400 drives the insulator string 300 to swing left and right, the four viscous dampers 7 connected to the hook support 14 provide damping, reducing the left and right swinging of the split conductor 400. From a vertical perspective, when the split conductor 400 drives the insulator string 300 to swing up and down, the four viscous dampers 7 connected to the hook support 14 expand and contract together to produce a damping effect, reducing the up and down swinging of the split conductor 400.

[0044] When the split conductors 400 on the windward and leeward sides of the transmission tower generate a torque on the insulator string 300, the friction damping plate 2 connected to the four viscous dampers 7 will play a role of friction damping with the friction damping box 1. At the same time, the spring 5 can play a dual role of increasing torsional damping and resetting, thereby reducing the torque generated by the split conductors 400 on the insulator string 300 on both sides.

[0045] When the wire swings diagonally upward or downward, three of the four viscous dampers 7 will contract, and one of the viscous dampers 7 will extend and generate damping to reduce the swinging of the split wire 400 diagonally upward or diagonally downward.

[0046] Alternatively, as Figure 1 and Figure 2 As shown, a connection hole 17 is provided on the friction damping box 1 , and the connection hole 17 is used to install the vibration reduction and suppression device 100 on the cross arm 201 of the transmission tower 200 .

[0047] In the illustrated embodiment of the present application, the housing 101 is tightly connected to the friction damping plate 2, providing friction damping. The friction damping plate 2 is tightly connected to the housing cover 102, providing friction damping. The mounting bracket 15 on the friction damping plate 2 is hingedly connected to the viscous damper 7 and is fixed by a second pin 10 and a second cotter pin 11, allowing the mounting bracket 15 on the friction damping plate 2 and the viscous damper 7 to rotate relative to each other. The spring 5 is fixed to the second mounting hook 32 of the housing cover 102 and the first mounting hook 31 on the friction damping plate 2. The spring 5 can provide reset and damping. The viscous damper 7 is connected to the universal support 9 and is fixed by a first pin 4 and a first cotter pin 6, allowing the viscous damper 7 and the universal support 9 to rotate relative to each other. Universal support 9 is connected to first deep groove ball bearing 12 and second deep groove ball bearing 13 and secured to mounting shaft 16 of hook support 14 with nut 8. Universal support 9 can rotate 360° on mounting shaft 16 of hook support 14. Connecting hook 3 on hook support 14 is used to connect to insulator string 300. Friction damping box 1 is bolted to corresponding brackets and secured to crossarm 201 of transmission tower 200.

[0048] Optionally, the hook support 14 and the mounting shaft 16 are integrally formed.

[0049] The vibration suppression device for connecting a transmission tower and an insulator provided by the present invention has vibration suppression and buffering functions. The cross arm 201 of the transmission tower 200 and the insulator string 300 are connected through the vibration suppression device. The vibration suppression device can effectively suppress the vibration of the transmission tower 200 caused by the dancing of the split conductor 400, thereby improving the stability and safety performance of the transmission tower 200. The vibration suppression device can greatly alleviate the impact of the lateral and longitudinal vibrations of the split conductor 400 on the transmission tower 200, and can also effectively reduce the impact on the transmission tower 200 in a line break accident. The vibration suppression device for connecting a transmission tower and an insulator provided by the present invention can effectively reduce the impact of the vibration of the split conductor 400, the swing of the insulator string 300 and the impact of the line break on the transmission tower 200. At the same time, it reduces the impact of the vibration of the transmission tower on the transmission line, thereby improving the stability and safety of the transmission line. The vibration reduction and suppression device for connecting a transmission tower and an insulator provided by the present invention can reduce vibration and suppress the conductor dancing phenomenon caused by the split conductor 400 under the action of strong wind load, reduce the vibration caused by the split conductor 400 on the transmission tower 200, and reduce the risk of collapse of the transmission tower 200. At the same time, the vibration reduction and suppression device has a simple structure, is easy to install and replace components, and has high structural safety and reliability.

[0050] In this application Figures 1 to 3In the specific embodiment shown, a vibration reduction and suppression device for connecting a transmission tower and an insulator is disclosed, including a friction damping box 1, four universal supports 9, four viscous dampers 7, two groups of four pins and cotter pins of four different specifications, totaling eight (i.e., four first cotter pins 6, four first pins 4, four second cotter pins 11, and four second pins 10), and a hook support 14. The friction damping box 1 is bolted to the transmission tower 200. The cylinder ends of the four viscous dampers 7 are hingedly connected to four mounting supports 15. The guide rods of the four viscous dampers 7 are connected to four universal supports 9, which are rotatably mounted on the hook support 14. The four mounting supports 15 respectively connect one end of the cylinders of the four resettable viscous dampers via four second pins 10 to form a hinged connection, and are locked with four second cotter pins 11. The guide rods of the four resettable viscous dampers are respectively connected to the universal supports 9 via four first pins 4 to form a hinged connection, and are locked with four first cotter pins 6. The four universal supports 9 are connected to four mounting shafts 16 on one side of the hook support 14. The friction damping box 1 has multiple connection holes 17 and is bolted to the crossarm 201 of the transmission tower 200, forming the foundation of the entire vibration reduction and suppression device. The viscous damper 7 comprises a cylinder, a piston, a damping orifice, a viscous fluid, a guide rod, and a return spring. When the guide rod is subjected to external pressure, it pushes the piston, causing the viscous fluid to flow through the damping orifice to generate a damping force, converting kinetic energy into heat energy. The return spring, which frees the guide rod from external pressure, pushes the piston, restoring it to its original position. The upper ends of the four viscous dampers 7 are hinged to the universal support 9, and the lower ends are hinged to the mounting support 15. The viscous dampers 7 can rotate relative to both the hook support 14 and the friction damping box 1. The four universal supports 9 and the four mounting shafts 16 on the hook support 14 can rotate relative to each other. The universal support 9 on the hook support 14 can rotate relative to the hook support 14. Two deep groove ball bearings, one large and one small, are mounted at the connection between the universal support 9 and the hook support 14: a first deep groove ball bearing 12 and a second deep groove ball bearing 13. The larger second deep groove ball bearing 13 is adjacent to the smaller first deep groove ball bearing 12, so that the inner races of the smaller first deep groove ball bearing 12 and the larger second deep groove ball bearing 13 are in close contact. The larger second deep groove ball bearing 13 is seated in a groove in the hinged component and rotates relative to the hook support 14. A small hole is provided in the universal support 9 for receiving the smaller first deep groove ball bearing 12. The universal support 9 and the smaller first deep groove ball bearing 12 are secured with washers and nuts 8. The connecting hook 3 on the hook support 14 is connected to the insulator string 300; the split conductor 400 is secured to the insulator string 300. Specifically, the split conductor 400 is secured to the bottom of the insulator string 300. When the vibration reduction and suppression device is used, the vibration and drag of the split conductor 400 will drive the insulator string 300 to swing and move.When the insulator string 300 moves up and down, the four resettable viscous dampers expand and contract with the string, generating a damping force that effectively mitigates the impact of vibration on the transmission tower. When the split conductor 400 causes the insulator string 300 to swing left and right, the four resettable viscous dampers contract on one side and extend on the other, generating a damping force that effectively mitigates the impact of vibration on the transmission tower. When the split conductor 400 causes the insulator string 300 to swing back and forth, the four resettable viscous dampers contract on one side and extend on the other, generating a damping force that effectively mitigates the impact of vibration on the transmission tower.

[0051] Nowadays, there is little research on vibration reduction and suppression devices for connecting transmission towers and insulator strings. Compared with existing vibration reduction and suppression devices for connecting transmission towers and insulators, the vibration reduction and suppression device for connecting transmission towers and insulators provided by the utility model has the advantages of being economical, easy to mass produce, easy to manufacture and convenient for subsequent maintenance.

[0052] The vibration reduction and suppression device for connecting transmission towers and insulators provided in the preferred embodiment of the present utility model has the advantages of reducing vibration, protecting the structure, being simple and easy to maintain, and having adjustable damping. Specifically, the vibration reduction and suppression device can effectively absorb and dissipate vibration energy, reduce the vibration amplitude of the transmission line caused by the wind, and thus improve the overall stability and safety. The tower-line system is the lifeline of national power and is of vital importance. The vibration reduction and suppression device can help resist external forces such as earthquakes or wind loads and protect the integrity of the structure. The vibration reduction and suppression device provided by the utility model has a clear and stable structure as a whole, and is relatively easy to maintain and replace, which helps to reduce costs.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

[0054] It should be noted that, unless otherwise specified, the technical or scientific terms used in this disclosure should have the ordinary meanings understood by those skilled in the art to which this disclosure pertains. In this disclosure, relational terms such as "first" and "second" are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Terms such as "connected" and "connected" should be interpreted broadly, meaning, for example, fixedly connected, removably connected, or integrally connected; mechanically connected, electrically connected; directly connected, or indirectly connected through an intermediary. The terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. Without further limitation, the phrase "comprises..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising the elements.

Claims

1. A vibration suppression device for connecting a transmission tower and an insulator, characterized in that: The vibration reduction and suppression device comprises: A friction damping box (1), the friction damping box (1) having a mounting cavity (111) and a clearance opening (112) communicating with the mounting cavity (111), the friction damping box (1) being used for connection to a transmission tower; a friction damping plate (2), the friction damping plate (2) being installed in the installation cavity (111) and being rotatable relative to the friction damping box (1), with a portion of the end surface of the friction damping plate (2) being exposed through the clearance opening (112); a hook support (14), wherein the hook support (14) is spaced apart from the exposed end surface of the friction damping plate (2); A connecting hook (3), wherein the end surface of the hook support (14) facing away from the friction damping plate (2) is provided with a connecting hook (3) for connecting to an insulator; A universal support (9), wherein a plurality of the universal supports (9) are installed at intervals on the end surface of the hook support (14) facing the friction damping plate (2), each of the universal supports (9) can rotate 360 degrees relative to the hook support (14), and the rotation axis of the universal support (9) is perpendicular to the end surface of the hook support (14) facing the friction damping plate (2); A mounting support (15), wherein a plurality of the mounting supports (15) are mounted at intervals on the exposed end surface of the friction damping plate; A viscous damper (7), wherein a plurality of the viscous dampers (7) are connected in parallel between the universal support (9) and the mounting support (15), wherein the first ends of the plurality of the viscous dampers (7) are hingedly connected to the plurality of the universal supports (9) in a one-to-one correspondence, and the second ends of the plurality of the viscous dampers (7) are hingedly connected to the plurality of the mounting supports (15) in a one-to-one correspondence; a first mounting hook (31), wherein a plurality of the first mounting hooks (31) are arranged at intervals on the exposed end surface of the friction damping plate (2), and the plurality of the first mounting hooks (31) are located outside the plurality of the mounting supports (15); Second mounting hooks (32), a plurality of the second mounting hooks (32) are arranged at intervals on the end surface of the friction damping box (1) provided with a clearance opening (112); along the rotation direction of the friction damping plate (2), the plurality of first mounting hooks (31) and the plurality of second mounting hooks (32) are alternately arranged; A plurality of springs (5) are provided, wherein a spring (5) is hung between each adjacent first mounting hook (31) and second mounting hook (32).

2. The vibration suppression device according to claim 1, wherein: The installation cavity (111) of the friction damping box (1) is filled with friction damping particles; The viscous damper (7) is a reset-type viscous damper, and the consistency of the viscous fluid in the viscous damper (7) is adjustable; The damping coefficient of the spring (5) is adjustable.

3. The vibration suppression device according to claim 1, wherein: The vibration reduction and suppression device further comprises: A mounting shaft (16), wherein a plurality of the mounting shafts (16) are arranged at intervals on the end surface of the hook support (14) facing the friction damping plate (2), and an end of each mounting shaft (16) away from the hook support (14) is provided with a threaded structure; Each of the universal supports (9) is mounted on one of the mounting shafts (16) via two deep groove ball bearings; A plurality of nuts (8) are threadedly connected to the threaded structures of the plurality of mounting shafts (16) in a one-to-one correspondence to fix the corresponding universal supports (9) and deep groove ball bearings on the corresponding mounting shafts (16).

4. The vibration suppression device according to claim 1, wherein: The friction damping plate (2) comprises a first disc (21) and a second disc (22) connected along the extension direction of its rotation axis, wherein the diameter of the first disc (21) is greater than the diameter of the second disc (22); The friction damping box (1) comprises a box body (101) and a box cover (102), wherein the box body (101) and the box cover (102) are detachably connected, the box body (101) has the installation cavity (111), the size of the installation cavity (111) is adapted to the size of the first disc (21), and the box cover (102) has the clearance opening (112), the size of the clearance opening (112) is adapted to the size of the second disc (22).

5. The vibration suppression device according to claim 4, characterized in that: Bolt holes are provided on both the box body (101) and the box cover (102), and the vibration reduction and suppression device further comprises bolts, through which the box body (101) and the box cover (102) are connected together.

6. The vibration suppression device according to claim 4, characterized in that: Each of the mounting supports (15) and each of the first mounting hooks (31) is arranged on an axial end surface of the second disc (22) away from the first disc (21); Along the radial direction of the second disc (22), a first mounting hook (31) is correspondingly provided on the outer side of each mounting support (15).

7. The vibration suppression device according to claim 1, wherein: The first end of the viscous damper (7) is hinged to the universal support (9) through a first pin (4) and a first cotter pin (6); the second end of the viscous damper (7) is hinged to the mounting support (15) through a second pin (10) and a second cotter pin (11).

8. The vibration suppression device according to claim 1, wherein: The plurality of mounting supports (15) are arranged at equal intervals along the outer circumference of the rotation axis of the friction damping plate (2); The distances between two adjacent universal supports (9) are equal; The distance between each adjacent two of the first mounting hooks (31) is equal; The distances between adjacent first mounting hooks (31) and second mounting hooks (32) are equal.

9. The vibration suppression device according to claim 1, wherein: The number of the universal support (9), the mounting support (15), the viscous damper (7), the first mounting hook (31), and the second mounting hook (32) is four, and the number of the springs (5) is eight.

10. The vibration suppression device according to claim 1, wherein: The friction damping box (1) is provided with a connection hole (17), and the connection hole (17) is used to install the vibration reduction and suppression device on a cross arm (201) of a transmission tower.

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