Anti-galloping device for overhead transmission line

Abstract

The present application relates to the technical field of overhead transmission lines, and in particular to an anti-galloping device for an overhead transmission line. The anti-galloping device for an overhead transmission line comprises a connection assembly (100) and an adjustment assembly (200). The connection assembly (100) comprises an insulating member (110) and a guy wire (120). The adjustment assembly (200) comprises an adjustment assembly body (210), and a rotation member (220) and an elastic member (230) which are arranged on the adjustment assembly body (210); a portion of the guy wire (120) is wound on the rotation member (220). When a transmission line vibrates in the direction away from the guy wire (120), the rotation member (220) is driven by the guy wire (120) to rotate, and the elastic member (230) is tightened, so that the guy wire (120) releases a length that is less than or equal to a preset length; when the transmission line vibrates in the direction towards the guy wire (120), the elastic member (230) is loosened, and the rotation member (220) is driven by the elastic member (230) to rotate in the reverse direction, so as to retract the released guy wire (120). The anti-galloping device for an overhead transmission line can reduce the phenomenon of large-amplitude galloping of transmission lines while allowing the transmission lines to undergo small-amplitude normal swinging, thereby improving the safety of transmission lines.

Description

Anti-galloping devices for overhead transmission lines

[0001] This application claims priority to Chinese Patent Application No. 202411586764.3, filed on November 8, 2024, entitled "Anti-Galloping Device for Overhead Transmission Lines", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of overhead transmission line technology, and in particular to an anti-galloping device for overhead transmission lines. Background Technology

[0003] Line galloping is a self-excited vibration phenomenon that occurs when conductors, after being eccentrically covered with ice, vibrate with large amplitude under the excitation of wind. Line galloping can not only cause electrical faults, but also lead to loose bolts, damaged hardware, broken conductors, and mechanical damage to tower materials and foundations.

[0004] In related technologies, multiple cables are used to connect the transmission line to the ground. The cables, through their own tension, provide a force to the transmission line in the opposite direction of its galloping, thereby fixing the transmission line and preventing it from galloping.

[0005] However, the aforementioned anti-swinging methods suppress the normal small-amplitude oscillations of the transmission line itself, which can easily cause stress concentration and thus pose safety hazards. Summary of the Invention

[0006] This application provides an anti-galloping device for overhead transmission lines, which enables the transmission lines to swing normally with small amplitudes and reduces the occurrence of large-amplitude galloping phenomena, thereby improving the safety of the transmission lines.

[0007] The anti-galloping device for overhead transmission lines provided in this application includes a connecting assembly and an adjusting assembly. The connecting assembly includes an insulator and a guy wire, which is used to connect to the transmission line through the insulator.

[0008] The adjustment assembly includes an adjustment assembly body and a rotating component and an elastic component disposed on the adjustment assembly body. The adjustment assembly body is used to connect with the support surface, the rotating component is connected with the elastic component, and part of the pull wire is wound on the rotating component.

[0009] The rotating component is configured such that when the transmission line vibrates in a direction away from the guy wire, it rotates under the drive of the guy wire, and the elastic component tightens so that the guy wire is released to a length less than or equal to a preset length; when the transmission line vibrates in a direction toward the guy wire, the elastic component relaxes and rotates in the opposite direction under the drive of the elastic component to retract the released guy wire.

[0010] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application further includes a connecting shaft in the adjusting assembly. The connecting shaft is rotatably mounted on the adjusting assembly body, and the rotating part and the elastic part are connected through the connecting shaft.

[0011] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application has a first locking part on the connecting shaft and a second locking part on the rotating part that matches the first locking part, with the first locking part and the second locking part locking together.

[0012] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application has a coil spring as the elastic element, a slot on the connecting shaft, the coil spring being sleeved on the connecting shaft, and the end of the coil spring being inserted into the slot.

[0013] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application has a locking member on the adjusting component body, and a groove on the outer wall of the rotating component, with part of the pull wire wound in the groove. The locking member is used to restrict the pull wire in the groove.

[0014] In one possible implementation, the anti-galloping device for overhead transmission lines provided in this application further includes a ratchet and at least one toothed ring in the adjustment assembly. The toothed ring is disposed on the body of the adjustment assembly, and the ratchet is sleeved on the connecting shaft.

[0015] The pawl on the ratchet is configured to rotate relative to the ratchet and extend out of the ratchet when the acceleration of the rotating part releasing the pull cable is greater than a preset acceleration, and engage with the toothed ring to limit the rotation of the connecting shaft.

[0016] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application further includes an energy-absorbing component. The energy-absorbing component includes a damper and a connector. The connector is used to connect the transmission line, and the damper is slidably connected to the connector. The damper is used to absorb the vibration energy of the transmission line.

[0017] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application further includes a transmission component in its energy-absorbing assembly, and the damper and the connecting component are connected through the transmission component.

[0018] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application has a groove on the damper and a guide rail on the connector that matches the groove, with the guide rail inserted into the groove.

[0019] In one possible implementation, the anti-galling device for overhead transmission lines provided in this application has a first connecting part on the connector and a second connecting part on the insulator, and the connector and the insulator are connected to the second connecting part through the first connecting part.

[0020] The anti-galloping device for overhead transmission lines provided in this application comprises a connecting assembly and an adjusting assembly. The connecting assembly includes an insulator and a guy wire. The guy wire is used to connect to the transmission line through the insulator, which ensures electrical insulation between the guy wire and the transmission line, thus ensuring electrical safety. The adjusting assembly includes an adjusting assembly body and a rotating part and an elastic part disposed on the adjusting assembly body. The adjusting assembly body is used to connect to a support surface, the rotating part is connected to the elastic part, and a portion of the guy wire is wound around the rotating part.

[0021] When the transmission line vibrates in a direction away from the guy wire, the guy wire drives the rotating component to rotate, and the elastic component tightens, so that the released guy wire length is less than or equal to the preset length, allowing the transmission line to oscillate normally with small amplitude. Furthermore, because the released length of the guy wire is less than or equal to the preset length, the guy wire limits the vibration amplitude of the transmission line, reducing the occurrence of large-amplitude galloping. When the transmission line vibrates in a direction towards the guy wire, the elastic component relaxes, driving the rotating component to rotate in the opposite direction to retract the released guy wire, reducing the problem of excessively long guy wires affecting the normal oscillation of the transmission line, thereby improving the safety of the transmission line. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the structure of the anti-galling device for overhead transmission lines provided in an embodiment of this application;

[0024] Figure 2 is a structural schematic diagram of Figure 1 from another angle;

[0025] Figure 3 is a structural schematic diagram of Figure 1 from another angle;

[0026] Figure 4 is a schematic diagram of the adjustment component in Figure 1;

[0027] Figure 5 is a structural schematic diagram of Figure 4 from another angle;

[0028] Figure 6 is a schematic diagram of the internal structure of Figure 4;

[0029] Figure 7 is an enlarged schematic diagram of the structure of part A in Figure 1;

[0030] Figure 8 is an enlarged schematic diagram of part B in Figure 2;

[0031] Figure 9 is an enlarged schematic diagram of the structure of part C in Figure 3;

[0032] Figure 10 is a schematic diagram of the energy absorption component in Figure 7;

[0033] Figure 11 is a structural schematic diagram of Figure 10 from another angle;

[0034] Figure 12 is a structural schematic diagram of Figure 10 from another angle.

[0035] Explanation of reference numerals in the attached drawings: 10-Split conductor; 20-Support surface; 100-Connecting assembly; 110-Insulator; 111-Second connecting part; 120-Pull wire; 200-Adjusting assembly; 210-Adjusting assembly body; 211-Locking part; 212-Locking buckle; 220-Rotating part; 221-Second snap-fit ​​part; 222-Groove; 230-Elastic part; 240-Connecting shaft; 241-First snap-fit ​​part; 242-Slot; 250-Ratchet; 260-Gear ring; 261-External gear ring; 262-Internal gear ring; 270-Guide wheel; 280-Bearing; 300-Energy absorption assembly; 310-Damper; 311-Slide groove; 320-Connecting part; 321-Guide rail; 322-First connecting part; 330-Transmission part.

[0036] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0037] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0038] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0041] As the background art demonstrates, in related technologies, multiple cables are used to connect the transmission line to the ground. The cables, through their own tension, provide a force opposite to the direction of the transmission line's galloping, thereby fixing the transmission line and preventing it from galloping. However, the above-mentioned anti-galloping method suppresses the normal small-amplitude oscillations of the transmission line itself, which can easily cause stress concentration and thus pose a safety hazard.

[0042] Based on this, the overhead transmission line anti-galling device provided in this application includes a connecting component and an adjusting component. The connecting component includes an insulating component and a guy wire. The guy wire is used to connect to the transmission line through the insulating component, and the insulating component ensures electrical insulation between the guy wire and the transmission line, thus ensuring electrical safety. The adjusting component includes an adjusting component body and a rotating component and an elastic component disposed on the adjusting component body. The adjusting component body is used to connect to a support surface, the rotating component is connected to the elastic component, and part of the guy wire is wound around the rotating component.

[0043] When the transmission line vibrates in a direction away from the guy wire, the guy wire drives the rotating component to rotate, and the elastic component tightens, so that the released guy wire length is less than or equal to the preset length, allowing the transmission line to oscillate normally with small amplitude. Furthermore, because the released length of the guy wire is less than or equal to the preset length, the guy wire limits the vibration amplitude of the transmission line, reducing the occurrence of large-amplitude galloping. When the transmission line vibrates in a direction towards the guy wire, the elastic component relaxes, driving the rotating component to rotate in the opposite direction to retract the released guy wire, reducing the problem of excessively long guy wires affecting the normal oscillation of the transmission line, thereby improving the safety of the transmission line.

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0045] Referring to Figures 1 to 6, the anti-galling device for overhead transmission lines provided in this application includes a connecting component 100 and an adjusting component 200. The connecting component 100 includes an insulating element 110 and a pull wire 120, which is used to connect to the transmission line through the insulating element 110.

[0046] The adjustment assembly 200 includes an adjustment assembly body 210 and a rotating member 220 and an elastic member 230 disposed on the adjustment assembly body 210. The adjustment assembly body 210 is used to connect with the support surface 20, the rotating member 220 is connected with the elastic member 230, and a portion of the pull wire 120 is wound around the rotating member 220.

[0047] The rotating member 220 is configured to rotate under the drive of the pull wire 120 when the transmission line vibrates in a direction away from the pull wire 120, and the elastic member 230 tightens so that the pull wire 120 is released to a length less than or equal to a preset length; when the transmission line vibrates in a direction toward the pull wire 120, the elastic member 230 relaxes and rotates in the opposite direction under the drive of the elastic member 230 to retract the released pull wire 120.

[0048] Understandably, the guy wire 120 is connected to the transmission line via the insulator 110. A portion of the guy wire 120 is wound around the rotating component 220. The insulator 110 not only provides a reliable mechanical connection point, enabling the guy wire 120 to effectively transmit the vibration of the transmission line to the regulating component 200, but also ensures electrical insulation between the guy wire 120 and the transmission line, preventing current from being conducted through the guy wire 120 to the regulating component 200, thus ensuring electrical safety. Exemplarily, the insulator 110 can be an insulator, and the number of insulators can be one; the number of insulators can also be two, which can be directly connected or connected via steel strand; the number of insulators can also be more than two, and this embodiment does not impose excessive limitations on this. It should be noted that the guy wire 120 can be steel strand.

[0049] The adjusting component body 210 is used to connect with the support surface 20, ensuring that the entire adjusting component 200 can be securely installed on the support surface 20 and will not move or fall off due to external forces or vibrations. Understandably, as the supporting structure of the entire adjusting component 200, the adjusting component body 210 needs sufficient strength and rigidity to withstand the forces generated by the rotating component 220 and the elastic component 230 during operation. For example, the support surface 20 can be a foundation, and the adjusting component body 210 can be connected to the foundation via expansion bolts.

[0050] Specifically, when the transmission line vibrates in a direction away from the guy wire 120 (the +Y direction indicated by the arrow in Figure 1), the transmission line applies tension to the guy wire 120. The guy wire 120 drives the rotating member 220 to rotate in the +W direction indicated by the arrow in Figure 4. Since the elastic member 230 is connected to the rotating member 220, the rotating member 220 drives the elastic member 230 to tighten, thereby releasing the guy wire 120 wound on the rotating member 220 for a length less than or equal to a preset length. In specific implementation, this preset length is the maximum length to ensure the normal oscillation of the transmission line with small amplitude. Therefore, by setting the rotating member 220 and the elastic member 230 to adjust the length of the released guy wire 120, the transmission line can oscillate normally with small amplitude, thus improving the safety of the transmission line. Furthermore, since the length of the pull wire 120 released by the rotating component 220 is less than or equal to the preset length, the pull wire 120 limits the vibration amplitude of the transmission line, prevents the transmission line from swinging excessively, and reduces the large-amplitude galloping phenomenon of the transmission line.

[0051] When the transmission line vibrates in the direction toward the guy wire 120 (in the Y direction as shown by the arrow in Figure 1), the guy wire 120 loses the tension of the transmission line, and the elastic element 230 relaxes to restore its elastic deformation. This drives the rotating element 220 to rotate in the W direction as shown by the arrow in Figure 4, and the rotating element 220 retracts the released guy wire 120. This allows the guy wire 120 to return to an appropriate length, maintaining the balance and stability of the system and reducing the problem of the guy wire 120 being too long and affecting the normal oscillation of the transmission line. Understandably, if the guy wire 120 is too long, it is prone to twisting and tangling under wind force. The twisted guy wire 120 will exert a force on the transmission line, thus affecting the normal oscillation of the transmission line.

[0052] It should be noted that when the elastic element 230 is fully tightened, the elastic element 230 cannot continue to move in the tightening direction, thus the elastic element 230 can restrict the rotating element 220 from continuing to rotate, causing the rotating element 220 to be unable to continue releasing the pull cable 120. Therefore, by selecting elastic elements 230 with different elastic forces, the length of the pull cable 120 released by the rotating element 220 can be controlled.

[0053] It should also be noted that the anti-galling device for overhead transmission lines can automatically adjust the length and tension of the guy wire 120 according to the vibration amplitude without manual intervention, which improves the automation level and operating efficiency of the system and saves manpower.

[0054] In some embodiments, as shown in FIG6, the adjustment assembly 200 further includes a connecting shaft 240, which is rotatably disposed on the adjustment assembly body 210, and the rotating member 220 and the elastic member 230 are connected through the connecting shaft 240.

[0055] Understandably, the connecting shaft 240 connects the rotating component 220 and the elastic component 230. When the pull wire 120 drives the rotating component 220 to rotate in the +W direction shown by the arrow in Figure 4, the rotating component 220 drives the connecting shaft 240 to rotate synchronously. The rotating connecting shaft 240 applies a force to the elastic component 230 connected to it, and the elastic component 230 is tightened by the force, thereby the rotating component 220 releases the pull wire 120 with a length less than or equal to the preset length.

[0056] When the rotating component 220 loses the driving force of the pull wire 120, the elastic component 230 relaxes to restore its elastic deformation, thereby driving the connecting shaft 240 to rotate in the -W direction shown by the arrow in Figure 4. The connecting shaft 240 drives the rotating component 220 connected to it to rotate synchronously, thereby the rotating component 220 retracts the released pull wire 120.

[0057] It should be noted that the connecting shaft 240 provides a stable fulcrum for the rotating component 220, allowing the rotating component 220 to rotate freely. This reduces the direct friction between the rotating component 220 and the adjusting component body 210, so that the rotating component 220 can respond to the vibration of the transmission line in a timely manner and quickly release or retract part of the pull wire 120.

[0058] The rotating component 220 and the elastic component 230 are connected together by the connecting shaft 240, which reduces complex mechanical connections and lowers manufacturing and maintenance costs.

[0059] In a specific implementation, the adjustment component 200 also includes a bearing 280, and the connecting shaft 240 can be rotatably mounted on the adjustment component body 210 via the bearing 280.

[0060] In some embodiments, as shown in FIG6, a first snap-fit ​​portion 241 is provided on the connecting shaft 240, and a second snap-fit ​​portion 221 that matches the first snap-fit ​​portion 241 is provided on the rotating member 220, and the first snap-fit ​​portion 241 and the second snap-fit ​​portion 221 are snapped together.

[0061] The first locking part 241 and the second locking part 221 are engaged to ensure that the rotating part 220 is firmly connected to the connecting shaft 240 and to ensure that the rotating part 220 remains stable during rotation and does not shift relative to the connecting shaft 240.

[0062] The mechanical locking of the snap-fit ​​structure reduces the relative sliding between the rotating part 220 and the connecting shaft 240. The snap-fit ​​structure can effectively transmit the torque between the rotating part 220 and the connecting shaft 240, ensuring that the rotating part 220 can smoothly drive the connecting shaft 240 to rotate during vibration.

[0063] It should also be noted that the snap-fit ​​structure makes the installation of the rotating part 220 and the connecting shaft 240 easier. Simply align and snap the first snap-fit ​​part 241 and the second snap-fit ​​part 221 together. No complicated tools or operations are required, which avoids misalignment or offset during installation and improves installation efficiency.

[0064] In some embodiments, as shown in FIG6, the elastic element 230 is a coil spring, the connecting shaft 240 is provided with a slot 242, the coil spring is sleeved on the connecting shaft 240, and the end of the coil spring is inserted into the slot 242.

[0065] By inserting the end of the coil spring into the slot 242 of the connecting shaft 240, the position of the coil spring can be effectively fixed, preventing it from sliding relative to the connecting shaft 240 during operation. When the connecting shaft 240 rotates, the coil spring can be tightened by the force exerted by the connecting shaft 240. When the coil spring loses pressure and returns to its free state, it can apply a force to the connecting shaft 240 to drive it to rotate in the opposite direction.

[0066] Inserting the end of the coil spring into slot 242 is a simple and effective way to secure it. The installation process is quick and easy, requiring no complicated tools or operations.

[0067] In some embodiments, as shown in Figures 4 to 6, the adjusting component body 210 is provided with a locking member 211, and the outer wall of the rotating member 220 has a groove 222. A portion of the pull wire 120 is wound in the groove 222, and the locking member 211 is used to restrict the pull wire 120 in the groove 222.

[0068] The locking element 211 ensures that the pull wire 120 is always kept in the groove 222 of the rotating element 220, preventing the pull wire 120 from coming off the rotating element 220 during operation, thus improving the reliability and safety of the anti-galling device for overhead transmission lines.

[0069] The design of the locking element 211 simplifies the installation of the pull cable 120; simply place the pull cable 120 into the groove 222 and secure it with the locking element 211. When the pull cable 120 needs to be replaced, simply release the locking element 211 to remove it, making maintenance quick and easy. In practice, the locking element 211 can be a locking plate, which can be connected to the adjusting assembly body 210 via screws or other methods; this embodiment does not impose excessive limitations on this.

[0070] In some embodiments, the adjusting assembly 200 may further include a guide wheel 270, which is rotatably mounted on the adjusting assembly body 210. The pull cable 120 is wound around the rotating member 220 via a guide wheel. The adjusting assembly body 210 is provided with a locking buckle 212, which is used to restrict the pull cable 120 to the guide wheel 270 to prevent the pull cable 120 from detaching from the guide wheel 270. By providing the guide wheel 270, the path of releasing or retracting the pull cable 120 can be fixed, further improving the reliability of the device.

[0071] In some embodiments, as shown in FIG6, the adjustment assembly 200 further includes a ratchet 250 and at least one toothed ring 260, the toothed ring 260 being disposed on the adjustment assembly body 210, and the ratchet 250 being sleeved on the connecting shaft 240.

[0072] The pawl on the ratchet 250 is configured to rotate relative to the ratchet 250 and extend out of the ratchet 250 when the acceleration of the release of the pull wire 120 by the rotating member 220 is greater than a preset acceleration, and engage with the toothed ring 260 to limit the rotation of the connecting shaft 240.

[0073] It should be noted that there is a linear relationship between amplitude and acceleration; the larger the amplitude, the greater the acceleration. When the vibration amplitude of the transmission line is the preset amplitude, the acceleration of the corresponding vibration of the transmission line is the preset acceleration.

[0074] When the vibration acceleration of the transmission line increases, that is, when the vibration acceleration of the transmission line exceeds the preset acceleration, the acceleration of the release cable 120 by the rotating component 220 exceeds the preset acceleration. This increases the rotational speed of the rotating component 220 and the connecting shaft 240. Since the ratchet 250 connected to the connecting shaft 240 rotates synchronously with the connecting shaft 240, the increased rotational speed of the ratchet 250 causes the pawl on the ratchet 250 to be thrown out under centrifugal force. The pawl extends out of the ratchet 250 and engages with the toothed ring 260. Thus, the rotation of the ratchet 250 is restricted by the toothed ring 260, and the rotation of the connecting shaft 240 connected to the ratchet 250 is also restricted. The rotating component 220 connected to the connecting shaft 240 also stops rotating, and the rotating component 220 cannot release the cable 120. Therefore, the cable 120 limits the vibration amplitude of the transmission line, allowing the regulating component 200 to better perform its anti-galloping function and ensuring the stability and reliability of the transmission line.

[0075] In a practical implementation, the toothed ring 260 may include an outer toothed ring 261 and an inner toothed ring 262. The ratchet 250 may be equipped with a small pawl and a large pawl. When the acceleration of the pulling wire suddenly increases, the small pawl swings out and locks the outer toothed ring 261, restricting the pulling of the wire and further restricting the dancing of the split conductor 10. When the small pawl is damaged, the large pawl can still swing out under the action of acceleration to engage with the inner toothed ring 262, forming a double insurance to ensure the reliability of the device.

[0076] In some embodiments, as shown in Figures 7 to 9, the overhead transmission line anti-galling device further includes an energy-absorbing component 300, which includes a damper 310 and a connector 320. The connector 320 is used to connect the transmission line, and the damper 310 is slidably connected to the connector 320. The damper 310 is used to absorb the vibration energy of the transmission line.

[0077] It should be noted that the main function of the damper 310 is to absorb and dissipate the vibration energy of the transmission line, reduce the amplitude and frequency of vibration, and thus reduce the galloping phenomenon of the transmission line.

[0078] It should also be noted that the transmission line may include two-split conductors 10, or three-split conductors 10, four-split conductors 10, six-split conductors 10, and eight-split conductors 10. The connector 320 is connected to the split conductors 10 of the transmission line. The damper 310 is slidably connected to the connector 320. The damper 310 can slide relative to the connector 320 in the +X or -X direction shown by the arrow in Figure 7. When the transmission line is affected by wind, the split conductors 10 tilt, and their vibration point shifts to a lower point. At this time, the connector 320 tilts, and the damper 310 on the connector 320 can slide relative to the connector 320 to a lower point to better prevent vibration. The magnitude and direction of the force on the transmission line are constantly changing. The vibration damper 310 continuously changes position according to the changes in the force on the conductor to achieve a better vibration damping effect.

[0079] In specific implementation, the connector 320 can be connected to the split conductor 10 through a pre-twisted suspension clamp, or it can be connected in other ways. This application embodiment does not impose too many restrictions on this.

[0080] In some embodiments, as shown in Figures 10 to 12, the energy-absorbing assembly 300 further includes a transmission member 330, and the damper 310 and the connector 320 are connected through the transmission member 330.

[0081] It should be noted that the transmission component 330 can be a chain and a gear. The chain is mounted on the connector 320, and the extension direction of the chain is consistent with the extension direction of the connector 320. The gear is mounted on the damper 310 and is connected to the chain. When the connector 320 tilts along with the split conductor 10, the chain on the connector 320 also tilts, and the gear rotates relative to the chain, thereby driving the damper 310 to move to a lower point, so that the damper 310 can play a better role in vibration damping.

[0082] In some embodiments, as shown in Figures 10 to 12, the damper 310 is provided with a groove 311, and the connector 320 has a guide rail 321 that matches the groove 311, with the guide rail 321 inserted into the groove 311.

[0083] Understandably, the groove 311 and the guide rail 321 can provide a smooth sliding connection, reducing the friction between the damper 310 and the connector 320, so that the damper 310 can slide smoothly relative to the connector 320 when the connector 320 tilts.

[0084] In some embodiments, as shown in FIG9, the connector 320 is provided with a first connecting portion 322, and the insulating member 110 is provided with a second connecting portion 111. The connector 320 and the insulating member 110 are connected to the second connecting portion 111 through the first connecting portion 322.

[0085] Specifically, the design of the first connecting portion 322 and the second connecting portion 111 provides a robust mechanical connection, ensuring stability between the connector 320 and the insulator 110 and preventing loosening or detachment during vibration. Exemplarily, the first connecting portion 322 and the second connecting portion 111 can be connected by bolts or other methods; this application embodiment does not impose excessive limitations on this.

[0086] It should be noted that the insulation component 110 is also provided with a relatively weak point. This weak point ensures that the tension on the pull wire 120 is less than the strength of the split conductor 10 of the transmission line. This effectively prevents the conductor from being pulled by the pull wire 120 and breaking under extreme conditions due to strong vibration, thus avoiding tower collapse accidents. The probability of this happening is extremely low. Even after the protective pull rod breaks, the device can still play a role in vibration isolation.

[0087] Those skilled in the art will understand that the anti-galling device for overhead transmission lines provided in this application comprises a connecting assembly 100 and an adjusting assembly 200. The connecting assembly 100 includes an insulating member 110 and a pull wire 120. The pull wire 120 is used to connect to the transmission line through the insulating member 110. The insulating member 110 ensures electrical insulation between the pull wire 120 and the transmission line, thus ensuring electrical safety. The adjusting assembly 200 includes an adjusting assembly body 210 and a rotating member 220 and an elastic member 230 disposed on the adjusting assembly body 210. The adjusting assembly body 210 is used to connect to a supporting surface. The rotating member 220 is connected to the elastic member 230, and a portion of the pull wire 120 is wound around the rotating member 220.

[0088] When the transmission line vibrates in a direction away from the guy wire 120, the guy wire 120 drives the rotating component 220 to rotate, and the elastic component 230 tightens, so that the guy wire 120 is released to a length less than or equal to a preset length, allowing the transmission line to oscillate normally with small amplitudes. Furthermore, because the released length of the guy wire 120 is less than or equal to the preset length, the guy wire 120 limits the vibration amplitude of the transmission line, reducing the occurrence of large-amplitude galloping phenomena. When the transmission line vibrates in a direction towards the guy wire 120, the elastic component 230 relaxes to drive the rotating component 220 to rotate in the opposite direction, retracting the released guy wire 120. This reduces the problem of the guy wire 120 being too long and affecting the normal oscillation of the transmission line, thereby improving the safety of the transmission line.

[0089] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0091] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An anti-galloping device for overhead transmission lines, characterized in that, It includes a connection assembly (100) and an adjustment assembly (200), the connection assembly (100) including an insulator (110) and a pull wire (120), the pull wire (120) being used to connect to a transmission line through the insulator (110); The adjustment assembly (200) includes an adjustment assembly body (210) and a rotating member (220) and an elastic member (230) disposed on the adjustment assembly body (210). The adjustment assembly body (210) is used to connect with the support surface (20). The rotating member (220) is connected with the elastic member (230). A portion of the pull wire (120) is wound around the rotating member (220). The rotating member (220) is configured to rotate under the drive of the pull wire (120) when the transmission line vibrates in a direction away from the pull wire (120), and the elastic member (230) tightens so that the pull wire (120) is released to a length less than or equal to a preset length; when the transmission line vibrates in a direction toward the pull wire (120), the elastic member (230) relaxes and rotates in the opposite direction under the drive of the elastic member (230) to retract the released pull wire (120).

2. The anti-galloping device for overhead transmission lines according to claim 1, characterized in that, The adjustment assembly (200) further includes a connecting shaft (240), which is rotatably mounted on the adjustment assembly body (210). The rotating member (220) and the elastic member (230) are connected through the connecting shaft (240).

3. The anti-galloping device for overhead transmission lines according to claim 2, characterized in that, The connecting shaft (240) is provided with a first snap-fit ​​portion (241), and the rotating member (220) has a second snap-fit ​​portion (221) that matches the first snap-fit ​​portion (241). The first snap-fit ​​portion (241) and the second snap-fit ​​portion (221) are snapped together.

4. The anti-galloping device for overhead transmission lines according to claim 3, characterized in that, The elastic element (230) is a coil spring, and the connecting shaft (240) is provided with a slot (242). The coil spring is sleeved on the connecting shaft (240), and the end of the coil spring is inserted into the slot (242).

5. The anti-galloping device for overhead transmission lines according to any one of claims 1 to 4, characterized in that, The adjusting component body (210) is provided with a locking member (211), and the outer wall of the rotating member (220) has a groove (222). Part of the pull wire (120) is wound in the groove (222), and the locking member (211) is used to restrict the pull wire (120) in the groove (222).

6. The anti-galloping device for overhead transmission lines according to any one of claims 2 to 4, characterized in that, The adjustment assembly (200) further includes a ratchet (250) and at least one toothed ring (260), the toothed ring (260) being disposed on the adjustment assembly body (210), and the ratchet (250) being sleeved on the connecting shaft (240); The pawl on the ratchet (250) is configured to rotate relative to the ratchet (250) and extend out of the ratchet (250) when the acceleration at which the rotator (220) releases the pull wire (120) is greater than a preset acceleration, and engage with the toothed ring (260) to restrict the rotation of the connecting shaft (240).

7. The anti-galloping device for overhead transmission lines according to any one of claims 1 to 4, characterized in that, It also includes an energy-absorbing component (300), which includes a damper (310) and a connector (320). The connector (320) is used to connect the transmission line, and the damper (310) is slidably connected to the connector (320). The damper (310) is used to absorb the vibration energy of the transmission line.

8. The anti-galloping device for overhead transmission lines according to claim 7, characterized in that, The energy-absorbing assembly (300) also includes a transmission component (330), and the damper (310) is connected to the connector (320) through the transmission component (330).

9. The anti-galloping device for overhead transmission lines according to claim 8, characterized in that, The damper (310) is provided with a groove (311), and the connector (320) has a guide rail (321) that matches the groove (311), and the guide rail (321) is inserted into the groove (311).

10. The anti-galloping device for overhead transmission lines according to claim 7, characterized in that, The connector (320) is provided with a first connecting part (322), and the insulating part (110) is provided with a second connecting part (111). The connector (320) and the insulating part (110) are connected to the second connecting part (111) through the first connecting part (322).

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