A vibration damping device for split conductors of overhead power lines

Abstract

This application provides a vibration damping device for split conductors in overhead lines, relating to the field of spacer bars. It includes a spacer frame, with an angle plate fixedly connected to the side wall of the spacer frame. One end of the angle plate is rotatably connected to an extension arm, and the other end of the angle plate is rotatably connected to a retainer. The retainer and the extension arm are elastically engaged by an elastic member. It also includes an overhead line fixing assembly and a release component. In this application, the retainer, connected to the extension arm, fixes the line through the overhead line fixing assembly. The line is snapped into a clip and a sleeve. A fixing cone is threaded onto one end of a threaded post, so that the fixing cone snaps into a limiting hole to fix the sleeve. This allows multiple lines to be arranged in a circular array on the spacer frame. When the line shakes, the retainer can swing in conjunction with the extension arm, causing the elastic member to deform and generate tension to overcome the potential energy of the line shaking, thereby effectively fixing the conductors.

Description

Technical Field

[0001] This invention relates to the field of spacers, and more specifically, to a vibration damping device for split conductor spacers in overhead lines. Background Technology

[0002] In high-voltage or ultra-high-voltage (such as 220kV, 500kV, 1000kV) transmission lines, split conductors (composed of multiple sub-conductors arranged at certain intervals) are widely used to reduce corona loss, lower line impedance, and increase transmission capacity. However, split conductors are prone to the following problems under dynamic loads such as wind loads, icing, and galloping:

[0003] Sub-conductors colliding with each other: During wind vibration or galloping, sub-conductors may collide with each other due to vibration, causing wear, broken strands, or even breakage of the conductors.

[0004] Excessive stress on spacers: Traditional rigid spacers may be subjected to excessive bending moments under dynamic loads, leading to fatigue damage or detachment.

[0005] Vibration transmission: Conductor vibration (such as wind vibration or secondary span oscillation) may propagate along the line and affect the stability of the entire power transmission system. Therefore, we have made improvements to this and proposed a vibration damping device for split conductors in overhead lines. Summary of the Invention

[0006] The purpose of this invention is to provide a vibration damping device for split conductors in overhead lines, which solves the problem that traditional rigid spacers are prone to conductor vibration and wear due to excessive bending moments.

[0007] The application is as follows:

[0008] It includes two symmetrically arranged spacers, with corner plates fixedly connected to the side walls of the spacers. An extension arm is rotatably connected to one end of the corner plate, and a retainer is rotatably connected to the other end of the corner plate. The retainer and the extension arm are elastically engaged by an elastic member.

[0009] An overhead line fixing assembly is attached to one end of an extension arm to secure the conductor.

[0010] The spacer has a hollow interior and a shock-absorbing structure is installed inside. A resistance turntable is snapped into the middle of the spacer, and a main shaft is fixedly connected to the side wall of the resistance turntable. One end of the main shaft passes through the spacer and the other end of the main shaft passes through the spacer through a connecting seat.

[0011] The spacer is also equipped with a repulsion component, which can emit a repulsion signal when the spacer rotates.

[0012] As a preferred technical solution of this application, the retainer includes a first bracket rotatably connected to the other end of the corner plate and a second bracket rotatably connected to one end of the first bracket. A first fixing sleeve is rotatably connected to one end of the second bracket. The first fixing sleeve is fixedly fastened to the outer wall of the extension arm by bolts. The corner plate, the first bracket and the second bracket are rotatably connected by a rotating shaft. When the extension arm swings, it can rotate relative to the spacer, providing space for the conductor to move.

[0013] As a preferred technical solution of this application, the elastic component includes a pull rod that is snapped onto one end of the second bracket. One end of the pull rod is snapped onto a tension spring, and one end of the tension spring is snapped onto a second fixing sleeve. The second fixing sleeve is snapped onto the middle of the outer wall of the extension arm by bolts. When the extension arm shakes, it can drive the tension spring to extend, thereby forming a tension that overcomes the elastic potential energy of the shaking.

[0014] As a preferred technical solution of this application, both the first fixing sleeve and the second fixing sleeve include a ring with a size larger than that of the extension arm. The two ends of the ring are respectively connecting ends, and a through hole is opened in the middle of the connecting ends. The bolt is installed in the through hole. Both the first fixing sleeve and the second fixing sleeve can slide on the extension arm. The position of the first fixing sleeve and the second fixing sleeve can be adjusted by opening the bolt. Specifically, the first fixing sleeve and the second fixing sleeve can be slid by opening the bolt. After adjustment, the bolt is inserted and a suitable nut is threaded to fix the first fixing sleeve and the second fixing sleeve.

[0015] As a preferred technical solution of this application, the overhead line fixing assembly includes a buckle rotatably connected to one end of an extension arm. One end of the buckle is rotatably connected to a sleeve, one end of the sleeve has a limiting hole, and the other end of the buckle is rotatably connected to a threaded post. One end of the threaded post is threadedly connected to a fixing cone. When the fixing cone is inserted into the limiting hole, the sleeve and the buckle are fixed to the conductor. The sleeve can rotate relative to the buckle, thereby opening the buckle. After the conductor is placed in the buckle, the sleeve is closed. Then, the threaded post is inserted into the limiting hole, and the fixing cone is threadedly connected to one end of the threaded post. After being snapped into the limiting hole, the limiting sleeve can be disengaged. After the fixing is completed, the position of the conductor can be fixed.

[0016] As a preferred technical solution of this application, the internal space of the spacer is pentagonal, the shock-absorbing structure is triangular damping rubber, the resistance turntable is pentagonal, and the shock-absorbing structure is arranged in a ring array between the spacer and the resistance turntable to fill the gap between the spacer and the resistance turntable. Since the shock-absorbing structure is filled between the resistance turntable and the spacer, when the resistance turntable rotates, it can squeeze the shock-absorbing structure, causing the shock-absorbing structure to deform. On the one hand, it can resist the potential energy of shaking, and on the other hand, it can absorb vibration and reduce the risk of line shaking. The shock-absorbing structure is made of rubber and can deform when squeezed. Specifically, air bubble space can be set in the shock-absorbing structure to facilitate the deformation of the shock-absorbing structure.

[0017] As a preferred technical solution of this application, a pentagonal conductive ring 1 is fixedly connected to the inner side wall of the spacer, and a pentagonal conductive ring 2 is fixedly connected to the outer wall of the resistance turntable. Two sets of conductive springs are fixedly connected to the outer wall of the pentagonal conductive ring 2. When the resistance turntable rotates, the conductive springs can adhere to the pentagonal conductive ring 1. The conductive springs are made of soft steel and can deform after being subjected to compressive force, thereby making better contact with the pentagonal conductive ring 1.

[0018] As a preferred technical solution of this application, the expulsion component includes a buzzer, a microcontroller, an inverter, and a battery installed inside the spacer. The battery, inverter, microcontroller, and buzzer form a series circuit. A voltage / current monitoring module is also provided in the series circuit. The first pentagonal conductive ring and the second pentagonal conductive ring are installed in the series circuit to make the conductive spring form an opening and closing structure. The voltage / current module can monitor the voltage and current in the series circuit, thereby ensuring the stability of the series circuit. The microcontroller can control the operation of each component, and the battery supplies power to each component.

[0019] As a preferred technical solution of this application, the expulsion component further includes a photovoltaic array panel installed on the side wall of the spacer and an anti-reverse diode and a DC-DC charging controller installed inside the spacer. The photovoltaic array panel, the anti-reverse diode and the DC-DC charging controller are electrically connected to the storage battery. The photovoltaic array panel absorbs sunlight and converts light energy into electrical energy, which is stored in the storage battery for power supply.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the scheme of this application:

[0022] 1. By setting up an extension arm, a retainer, and an overhead line fixing assembly, the retainer connects to the extension arm and fixes the line through the overhead line fixing assembly. The line is snapped into the buckle and sleeve. The fixing cone is threaded to one end of the threaded post, so that the fixing cone snaps into the limiting hole to fix the sleeve. This allows multiple lines to be arranged in a ring array on the spacer. When the line shakes, the retainer can swing in coordination with the extension arm, causing the elastic component to deform and generate tension to overcome the potential energy of the line shaking, thereby achieving the purpose of effectively fixing the conductor. The elastic component can be snapped into different positions on the extension arm to adjust the tension of the elastic component to suit different environments.

[0023] 2. Through the arrangement of spacers and expulsion components, the resistance turntable and spacers are fitted with a gap, and a shock-absorbing structure is filled in the gap. When the wire sways, the spacers will rotate relative to each other, causing the resistance turntable to squeeze the shock-absorbing structure, forming a squeezing force to overcome and absorb the vibration, thereby reducing the swaying of the wire. When the resistance turntable rotates, it can also drive the conductive spring to move to abut against the inner wall of the pentagonal conductive ring to form an electrical connection, thereby powering the buzzer and emitting an expulsion signal to effectively expel organisms attached to the wire. The conductive springs are symmetrically arranged, so the rotation direction of the resistance turntable does not need to be considered. The photovoltaic array panel located outside the spacers can absorb light and perform photoelectric conversion to store the light in the battery for power supply. Attached Figure Description

[0024] Figure 1 A three-dimensional structural schematic diagram of a vibration damping device for split conductors of overhead lines provided in this application;

[0025] Figure 2 A schematic diagram of the main structure of a split conductor interval damping device for overhead lines provided in this application;

[0026] Figure 3 A top view schematic diagram of a vibration damping device for split conductors of overhead lines provided in this application;

[0027] Figure 4 A partial structural schematic diagram of a vibration damping device for split conductors of overhead lines provided in this application;

[0028] Figure 5 This application provides a vibration damping device for split conductors in overhead power lines. Figure 4 Front view structural diagram;

[0029] Figure 6 This application provides a vibration damping device for split conductors in overhead power lines. Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7A partial structural schematic diagram of a vibration damping device for split conductors of overhead lines provided in this application;

[0031] Figure 8 A schematic diagram of the overhead line fixing component of an overhead line split conductor interval damping device provided in this application;

[0032] Figure 9 This application provides a schematic diagram of the system structure of a vibration damping device for split conductors in overhead lines.

[0033] The image shows:

[0034] 10. Spacer; 11. Angle plate; 12. Extension arm; 13. Holder; 131. First bracket; 132. Second bracket; 133. First fixing sleeve; 14. Elastic member; 141. Pull rod; 142. Tension spring; 143. Second fixing sleeve;

[0035] 20. Overhead line fixing components; 21. Clips; 22. Sleeves; 23. Threaded posts; 24. Fixing cones;

[0036] 30. Vibration damping structure; 31. Resistance turntable; 32. Main shaft; 33. Connecting seat; 34. Pentagonal conductive ring one; 35. Pentagonal conductive ring two; 36. Conductive spring;

[0037] 40. Expulsion component; 41. Buzzer; 42. Microcontroller; 43. Inverter; 44. Battery; 45. Voltage / current monitoring module; 46. Anti-reverse diode; 47. DC-DC charging controller; 48. Photovoltaic array panel. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] Therefore, the following detailed description of embodiments of the present invention is not intended to limit the scope of the claimed invention, but merely illustrates some embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Please see Figures 1 to 9 The present invention provides a technical solution: an overhead line split conductor interval damping device, including a symmetrically arranged interval frame 10, an angle plate 11 is fixedly connected to the side wall of the interval frame 10, an extension arm 12 is rotatably connected to one end of the angle plate 11, and a retainer 13 is rotatably connected to the other end of the angle plate 11. The retainer 13 and the extension arm 12 are elastically engaged by an elastic member 14.

[0044] The overhead line fixing assembly 20 is connected to one end of the extension arm 12 for fixing the conductor;

[0045] The spacer 10 has a hollow interior and a shock-absorbing structure 30 is installed inside the spacer 10. A resistance turntable 31 is snapped into the middle of the spacer 10. A main shaft 32 is fixedly connected to the side wall of the resistance turntable 31. One end of the main shaft 32 passes through the spacer 10 and the other end of the main shaft 32 passes through the spacer 10 through a connecting seat 33.

[0046] The spacer 10 is also equipped with a drive-off component 40, which can emit a drive-off signal when the spacer 10 rotates.

[0047] In a preferred embodiment, based on the above method, the retainer 13 further includes a first bracket 131 rotatably connected to the other end of the corner plate 11 and a second bracket 132 rotatably connected to one end of the first bracket 131. One end of the second bracket 132 is rotatably connected to a first fixing sleeve 133, which is fixedly fastened to the outer wall of the extension arm 12 by bolts. The corner plate 11, the first bracket 131 and the second bracket 132 are respectively rotatably connected by a rotating shaft. When the extension arm 12 swings, it can rotate relative to the spacer 10 to provide space for the conductor.

[0048] The elastic member 14 includes a pull rod 141 that is snapped onto one end of the second bracket 132. One end of the pull rod 141 is snapped onto a tension spring 142. One end of the tension spring 142 is snapped onto a second fixing sleeve 143. The second fixing sleeve 143 is snapped onto the middle of the outer wall of the extension arm 12 by bolts. When the extension arm 12 shakes, it can drive the tension spring 142 to extend, thereby generating a tension force to overcome the elastic potential energy of the shaking.

[0049] Both the first fixing sleeve 133 and the second fixing sleeve 143 include a ring with a size larger than that of the extension arm 12. The two ends of the ring are connecting ends, and a through hole is provided in the middle of the connecting end. A bolt is installed in the through hole.

[0050] Both the first fixing sleeve 133 and the second fixing sleeve 143 can slide on the extension arm 12. The position of the first fixing sleeve 133 and the second fixing sleeve 143 can be adjusted by opening the bolts. After adjustment, the bolts are inserted and the appropriate nuts are threaded to fix the first fixing sleeve 133 and the second fixing sleeve 143.

[0051] The overhead line fixing assembly 20 includes a buckle 21 rotatably connected to one end of the extension arm 12. One end of the buckle 21 is rotatably connected to a sleeve 22. One end of the sleeve 22 has a limiting hole. The other end of the buckle 21 is rotatably connected to a threaded post 23. One end of the threaded post 23 is threadedly connected to a fixing cone 24. When the fixing cone 24 is inserted into the limiting hole, the sleeve 22 and the buckle 21 are fixed to the conductor.

[0052] The sleeve 22 can rotate relative to the buckle 21, thereby opening the buckle 21. After placing the wire into the buckle 21, the sleeve 22 is closed. Then, the threaded post 23 is inserted into the limiting hole, and the fixing cone 24 is threaded to one end of the threaded post 23. After being locked into the limiting hole, the sleeve 22 is locked and disengaged. After the fixing is completed, the position of the wire can be fixed.

[0053] As a preferred embodiment, based on the above method, the internal space of the spacer 10 is pentagonal, the shock-absorbing structure 30 is triangular damping rubber, the resistance turntable 31 is pentagonal, and the shock-absorbing structure 30 is arranged in a ring array between the spacer 10 and the resistance turntable 31 to fill the gap between the spacer 10 and the resistance turntable 31, since the shock-absorbing structure 30 is filled between the resistance turntable 31 and the spacer 10.

[0054] Specifically, when the resistance turntable 31 rotates, it can compress the shock-absorbing structure 30, causing the shock-absorbing structure 30 to deform. On the one hand, it can resist the potential energy of shaking, and on the other hand, it can absorb vibration and reduce the risk of line shaking. The shock-absorbing structure 30 is made of rubber and can deform when compressed. Specifically, air bubble space can be set in the shock-absorbing structure 30 to facilitate the deformation of the shock-absorbing structure 30.

[0055] A pentagonal conductive ring 34 is fixedly connected to the inner wall of the spacer 10, and a pentagonal conductive ring 35 is fixedly connected to the outer wall of the resistance turntable 31. Two sets of conductive springs 36 are fixedly connected to the outer wall of the pentagonal conductive ring 35. When the resistance turntable 31 rotates, the conductive springs 36 can fit against the pentagonal conductive ring 34. The conductive springs 36 are made of soft steel and can deform after being subjected to compressive force, so as to better contact the pentagonal conductive ring 34.

[0056] In a preferred embodiment, based on the above method, the expulsion component 40 further includes a buzzer 41, a microcontroller 42, an inverter 43, and a battery 44 installed inside the spacer 10. The battery 44, inverter 43, microcontroller 42, and buzzer 41 form a series circuit. A voltage / current monitoring module 45 is also provided in the series circuit. Pentagonal conductive ring 1 34 and pentagonal conductive ring 2 35 are installed in the series circuit to form an opening and closing structure for the conductive spring 36. The voltage / current module 45 can monitor the voltage and current in the series circuit, thereby ensuring the stability of the series circuit. The microcontroller 42 can control the operation of each component, and the battery 44 provides power to each component.

[0057] The expulsion component 40 also includes a photovoltaic array panel 48 installed on the side wall of the spacer 10, and an anti-reverse diode 46 and a DC-DC charging controller 47 installed inside the spacer 10. The photovoltaic array panel 48, the anti-reverse diode 46 and the DC-DC charging controller 47 are electrically connected to the battery 44. The photovoltaic array panel 48 absorbs sunlight and converts light energy into electrical energy, which is stored in the battery 44 for power supply.

[0058] Specifically, during operation / use, the overhead line split conductor spacer damping device works as follows: the retainer 13 connects to the extension arm 12 to fix the line via the overhead line fixing assembly 20. The line is snapped into the buckle 21 and the sleeve 22. The fixing cone 24 is threaded onto one end of the threaded post 23, so that the fixing cone 24 is snapped into the limiting hole to fix the sleeve 22. This allows multiple lines to be arranged in a ring array on the spacer 10. When the line shakes, the retainer 13 can swing in coordination with the extension arm 12, causing the elastic member 14 to deform, thereby generating tension to overcome the potential energy of the line shaking, thus achieving the purpose of effectively fixing the conductor. The elastic member 14 can be snapped into different positions on the extension arm 12 to adjust the tensile strength of the elastic member 14. The structure is designed to be adaptable to different environments. The resistance turntable 31 and the spacer 10 are fitted together with a gap, and the gap is filled with a shock-absorbing structure 30. When the wire shakes, the spacer 10 will rotate relative to each other, which causes the resistance turntable 31 to squeeze the shock-absorbing structure 30, forming a squeezing force to overcome and absorb the vibration, thereby reducing the shaking of the wire. When the resistance turntable 31 rotates, it can also drive the conductive spring 36 to move to abut against the inner wall of the pentagonal conductive ring 34 to form an electrical connection, thereby powering the buzzer 41 and emitting a repulsion signal to effectively repel organisms attached to the wire. The conductive spring 36 is symmetrically arranged so that the rotation direction of the resistance turntable 31 does not need to be considered. The photovoltaic array panel 48 located outside the spacer 10 can absorb light and perform photoelectric conversion to store the light in the battery 44 for power supply.

[0059] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described herein. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present invention, as well as all technical solutions and improvements that do not depart from the spirit and scope of the invention, are covered within the scope of the claims of the present invention.

Claims

1. A vibration damping device for split conductors in overhead power lines, characterized in that, It includes two symmetrically arranged spacers (10), with corner plates (11) fixedly connected to the side walls of the spacers (10). An extension arm (12) is rotatably connected to one end of the corner plate (11), and a retainer (13) is rotatably connected to the other end of the corner plate (11). The retainer (13) and the extension arm (12) are elastically engaged by an elastic member (14). An overhead line fixing assembly (20) is connected to one end of an extension arm (12) for fixing the conductor; The spacer (10) has a hollow interior and a shock-absorbing structure (30) is provided inside the spacer (10). A resistance turntable (31) is snapped into the middle of the spacer (10). A main shaft (32) is fixedly connected to the side wall of the resistance turntable (31). One end of the main shaft (32) passes through the spacer (10) and the other end of the main shaft (32) passes through the spacer (10) through a connecting seat (33). The spacer (10) is also equipped with a drive-off component (40), which can emit a drive-off signal when the spacer (10) rotates; The inner wall of the spacer (10) is fixedly connected to a pentagonal conductive ring one (34), and the outer wall of the resistance turntable (31) is fixedly connected to a pentagonal conductive ring two (35). The outer wall of the pentagonal conductive ring two (35) is fixedly connected to two sets of conductive springs (36). When the resistance turntable (31) rotates, the conductive springs (36) can adhere to the pentagonal conductive ring one (34). The expulsion component (40) includes a buzzer (41), a microcontroller (42), an inverter (43), and a battery (44) installed inside the spacer (10). The battery (44), inverter (43), microcontroller (42), and buzzer (41) form a series circuit. A voltage / current monitoring module (45) is also provided in the series circuit. The first pentagonal conductive ring (34) and the second pentagonal conductive ring (35) are installed in the series circuit to make the conductive spring (36) form an opening and closing structure.

2. The overhead line split conductor interval damping device according to claim 1, characterized in that, The retainer (13) includes a first bracket (131) rotatably connected to the other end of the corner plate (11) and a second bracket (132) rotatably connected to one end of the first bracket (131). One end of the second bracket (132) is rotatably connected to a first fixing sleeve (133), and the first fixing sleeve (133) is fixedly fastened to the outer wall of the extension arm (12) by bolts.

3. The overhead line split conductor interval damping device according to claim 2, characterized in that, The elastic member (14) includes a pull rod (141) that is snapped onto one end of the second bracket (132), a tension spring (142) that is snapped onto one end of the pull rod (141), a second fixing sleeve (143) that is snapped onto one end of the tension spring (142), and the second fixing sleeve (143) that is snapped onto the middle part of the outer wall of the extension arm (12) by bolts.

4. The overhead line split conductor interval damping device according to claim 3, characterized in that, The first fixing sleeve (133) and the second fixing sleeve (143) both include a ring with a size larger than that of the extension arm (12). The two ends of the ring are connecting ends, and a through hole is provided in the middle of the connecting end. The bolt is installed in the through hole.

5. The overhead line split conductor interval damping device according to claim 1, characterized in that, The overhead line fixing assembly (20) includes a buckle (21) rotatably connected to one end of the extension arm (12). One end of the buckle (21) is rotatably connected to a sleeve (22). One end of the sleeve (22) has a limiting hole. The other end of the buckle (21) is rotatably connected to a threaded post (23). One end of the threaded post (23) is threadedly connected to a fixing cone (24). When the fixing cone (24) is inserted into the limiting hole, the sleeve (22) and the buckle (21) are fixed on the conductor.

6. The overhead line split conductor interval damping device according to claim 1, characterized in that, The internal space of the spacer (10) is pentagonal, the shock-absorbing structure (30) is triangular damping rubber, the resistance turntable (31) is pentagonal, and the shock-absorbing structure (30) is arranged in a ring array between the spacer (10) and the resistance turntable (31) to fill the gap between the spacer (10) and the resistance turntable (31).

7. The overhead line split conductor interval damping device according to claim 1, characterized in that, The expulsion component (40) also includes a photovoltaic array panel (48) installed on the side wall of the spacer (10) and an anti-reverse diode (46) and a DC-DC charging controller (47) installed inside the spacer (10), wherein the photovoltaic array panel (48), the anti-reverse diode (46) and the DC-DC charging controller (47) are electrically connected to the battery (44).

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