Anti-galloping spacer

Abstract

The invention relates to the technical field of overhead transmission lines, in particular to an anti-galloping spacer which comprises a body frame, at least two supporting rod structures are evenly and annularly arranged on the peripheral side of the body frame at intervals, elastic steel plate sets correspondingly perpendicular to the supporting rod structures are arranged at the outer ends of the supporting rod structures, and wire clamp structures are arranged at the two ends of each elastic steel plate set. The middle of one side of the elastic steel plate A is arranged at the outer end of the supporting rod structure, bending parts are arranged at the two ends of one plate face of the elastic steel plate A, an elastic steel plate B is arranged between the two bending parts, the center line of the elastic steel plate B is parallel to the center line of the elastic steel plate A at intervals, and the plate face of the elastic steel plate B is correspondingly perpendicular to the plate face of the elastic steel plate A; wire clamp structures are arranged at the two end parts of the elastic steel plate B; according to the invention, due to the arrangement of the elastic steel plate group, the elastic steel plate group can be synchronously bent along with the bending of the sub-conductor, so that the sub-conductor at the wire clamp structure cannot be bent, and the problem that the sub-conductor is repeatedly bent on the wire clamp structure under the action of wind power is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of overhead power transmission lines, in particular to an anti-dancing spacer rod. Background Art

[0002] Split conductors often dance under the action of wind, which may cause risks such as short circuit and breakage of the conductors. In severe cases, it may also cause mechanical damage to transmission equipment such as tower components and insulator strings. Therefore, spacers are needed to limit the relative movement between the sub-conductors and maintain the geometric shape of the split conductors under normal operation.

[0003] However, there are some shortcomings in the existing spacer bars. For example, although spacer bars are installed between the sub-conductors, dancing still occurs under the action of wind. When the conductor dances, there are dynamic bending stresses of different sizes at each point, especially when the sub-conductor is repeatedly bent at the wire clamp, which can easily lead to fatigue breakage or wire breakage of the conductor. For another example, in order to prevent the sub-conductor from being unable to twist freely at the wire clamp, a jacket (two-half type) that can rotate along its central axis is provided in the wire clamp. However, this wire clamp is inconvenient to install and has safety hazards (first place half of the jacket in half of the wire clamp, then use one hand to support the half of the wire clamp to one side of the cable, and then use the other hand to place the other half of the jacket and the wire clamp in turn. However, when placing the other half of the wire clamp, the corresponding half of the jacket is easy to fall off). For example, an anti-dancing spacer bar disclosed in the Chinese patent with publication number CN221614616U and an anti-dancing damping spacer bar disclosed in the Chinese patent with publication number CN101783492B both have the above-mentioned shortcomings.

[0004] For this purpose, we designed an anti-dancing spacer. Summary of the invention

[0005] In order to overcome the deficiencies in the background technology, the present invention discloses an anti-dancing spacer rod.

[0006] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: An anti-dancing spacer, comprising a main body frame, at least two support rod structures are evenly spaced around the main body frame, the outer ends of the support rod structures are provided with elastic steel plate groups corresponding to and perpendicular to them, and both ends of the elastic steel plate groups are provided with wire clamp structures; The elastic steel plate group includes an elastic steel plate A which is arranged at the outer end of the support rod structure in the middle of one side, and bending parts are provided at both ends of the plate surface of the elastic steel plate A. An elastic steel plate B is provided between the two bending parts, and the center line is parallel to the center line of the elastic steel plate A, and the plate surface of the elastic steel plate B is perpendicular to the plate surface of the elastic steel plate A, and wire clamp structures are provided at both ends of the elastic steel plate B.

[0007] Preferably, the wire clamp structure includes a fixed clamp and a movable clamp, the inner arc surface of the fixed clamp and the inner arc surface of the movable clamp are both movably connected with a semicircular inner sleeve along the arc direction, one side of the movable clamp is provided with a sliding connecting rod which slides through the fixed clamp along the direction of clamping the wire, and the outer end of the sliding connecting rod is provided with a limit piece, the other side of the movable clamp is provided with a locking rod which movably passes through the fixed clamp along the direction of clamping the wire, and one side of the locking rod is provided with a reverse tooth structure, and the side of the fixed clamp is provided with a clamping rod which cooperates with the reverse tooth structure.

[0008] Preferably, a sliding portion is provided in the middle of the outer arc surface of the semicircular inner sleeve, and the inner arc surface of the fixed clamp and the inner arc surface of the movable clamp are both provided with sliding grooves that cooperate with the corresponding sliding portion along their arc directions.

[0009] Preferably, the inner arc surface of the semicircular inner sleeve is provided with a flexible layer.

[0010] Preferably, the support rod structure includes a sleeve with one end hinged to the outside of the main body frame, the inner cavity of the sleeve is provided with a piston rod extending from the outer end, and the outer end of the piston rod is fixedly connected to the middle of the elastic steel plate group; the inner cavity of the sleeve is provided with buffer springs at positions corresponding to both sides of the inner end of the piston rod.

[0011] Preferably, a short steel wire rope is suspended at the top of the inner side of the main body frame, and a first anti-pendulum weight is provided at the lower end of the short steel wire rope and is located in the middle of the main body frame.

[0012] Preferably, anti-dancing springs are provided between the two sides of the first anti-pendulum weight and the corresponding inner side surfaces of the main body frame.

[0013] Preferably, the anti-dancing spring is arranged horizontally.

[0014] Preferably, a long steel wire rope is provided at the bottom of the first anti-pendulum hammer, the lower end of the long steel wire rope movably passes through the bottom of the main body frame, and is provided with a second anti-pendulum hammer; Wherein, the long steel wire rope body is provided with a pressing block pressed on the inner bottom of the main body frame.

[0015] Preferably, the main body frame is annular or polygonal.

[0016] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: 1. Due to the setting of the elastic steel plate group, the elastic steel plate group can bend synchronously with the bending of the sub-conductor, so that the sub-conductor at the wire clamp structure will not bend, and the function of effectively solving the problem of repeated bending of the sub-conductor at the wire clamp structure under the action of wind is realized; 2. Since the two semicircular inner sleeves form a circular sleeve, they can rotate with the twisting of the wire under the cooperation of the sliding part and the corresponding sliding groove. At the same time, since the movable clamp and the fixed clamp are connected by a sliding connecting rod, the movable clamp will not fall off during the installation process. When the semicircular inner sleeve is connected with the corresponding fixed clamp or movable clamp through the sliding groove, the semicircular inner sleeve will not fall off during the installation process, which not only facilitates the installation, but also improves the safety factor. 3. The first anti-pendulum hammer and the anti-dancing spring are set up, so that the first anti-pendulum hammer can be suspended by a short steel wire rope, and the two anti-dancing springs can effectively support the relative position between the main body frame and the first anti-pendulum hammer, and the anti-dancing spring can make the first anti-pendulum hammer effectively swing relative to the shaking of the main body frame, so as to suppress the synchronous and non-synchronous dancing of the sub-conductor at the same time; 4. The arrangement of the first anti-pendulum hammer, the long steel wire rope and the second anti-pendulum hammer can pull the first anti-pendulum hammer through the second anti-pendulum hammer, and under the action of gravity, the relative positions between the second anti-pendulum hammer and the first anti-pendulum hammer and the main body frame are adjusted. At this time, when the main body frame shakes, due to the effect of inertia, the left and right positions of the second anti-pendulum hammer and the first anti-pendulum hammer will have hysteresis. However, since the second anti-pendulum hammer and the first anti-pendulum hammer are pulled by the corresponding steel wire ropes, the shaking of the main body frame needs to overcome the gravitational potential energy of the second anti-pendulum hammer and the first anti-pendulum hammer, so the second anti-pendulum hammer and the first anti-pendulum hammer can effectively prevent the shaking of the main body frame. In addition, the long steel wire rope body runs through the bottom of the main body frame. When the main body frame deviates, the long steel wire rope is bent at the position corresponding to the bottom of the main body frame, and the second anti-pendulum hammer needs to rise to a greater height. At this time, the deviation of the main body frame needs to overcome more gravitational potential energy of the second anti-pendulum hammer, further effectively overcoming the deviation of the main body frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the first structure of the present invention; Figure 2 It is a second structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the assembly structure of the support rod structure, the elastic steel plate and the wire clamp structure in the present invention; Figure 4 is a cross-sectional view of the support rod structure of the present invention; Figure 5 is a cross-sectional view of the centerline clamp structure of the present invention; Figure 6 It is a schematic diagram of the assembly structure of the movable clamp and the semicircular inner sleeve in the present invention.

[0018] In the figure: 1. main body frame; 2. support rod structure; 21. sleeve; 22. piston rod; 23. buffer spring; 3. elastic steel plate group; 31. elastic steel plate A; 311. bending part; 32. elastic steel plate B; 4. wire clamp structure; 41. fixed clamp; 411. clamping rod; 42. movable clamp; 421. sliding connecting rod; 422. limiter; 423. locking rod; 424. inverted tooth structure; 43. semicircular inner sleeve; 431. sliding part; 432. flexible layer; 5. short steel wire rope; 6. first anti-pendulum hammer; 7. anti-dancing spring; 8. long steel wire rope; 81. pressure block; 9. second anti-pendulum hammer. DETAILED DESCRIPTION

[0019] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application and are for the convenience of describing the present invention; it should be understood that if there are terms such as "end", "side", "end portion", "lateral", "lateral", "transverse", "longitudinal", etc. indicating directions or positional relationships, they only correspond to the length and width of the corresponding components, that is, the "end portion" indicates the head and tail areas in the length direction of the corresponding component, and the "side portion" indicates the head and tail areas in the width direction of the corresponding component; this is for the convenience of describing the present invention and is not to indicate or imply that the device or element referred to must have a specific direction.

[0020] Embodiment 1, in combination with the attached Figure 1-3 A kind of anti-dancing spacer includes a main body frame 1. According to needs, the main body frame 1 is in a circular ring shape or a polygonal shape. When the main body frame 1 is in a polygonal shape, the shape is designed according to the number and position of the sub-conductors in the split conductors; at least two support rod structures 2 are evenly spaced around the main body frame 1. Specifically, the number of the support rod structures 2 is set according to the number of sub-conductors in the split conductors, and is not specifically limited here.

[0021] The outer end of the support rod structure 2 is provided with an elastic steel plate group 3 corresponding to it and perpendicular thereto, and both ends of the elastic steel plate group 3 are provided with a wire clamp structure 4; The elastic steel plate group 3 includes an elastic steel plate A31 arranged at the outer end of the support rod structure 2 in the middle of one side, and bending portions 311 are provided at both ends of the plate surface of the elastic steel plate A31, and an elastic steel plate B32 whose center line is parallel to the center line interval of the elastic steel plate A31 is provided between the two bending portions 311, and the plate surface of the elastic steel plate B32 is perpendicular to the plate surface of the elastic steel plate A31, and wire clamp structures 4 are provided at both ends of the elastic steel plate B32; that is, when the sub-conductor is bent, it can drive the elastic steel plate group 3 to bend synchronously, so that the sub-conductor at the wire clamp structure 4 will not bend, thereby effectively solving the problem of repeated bending of the sub-conductor at the wire clamp structure 4 under the action of wind.

[0022] As needed, combine with Figure 5-6 The wire clamp structure 4 includes a fixed clamp 41 and a movable clamp 42. The inner arc surface of the fixed clamp 41 and the inner arc surface of the movable clamp 42 are both movably connected with a semicircular inner sleeve 43 along the arc direction. According to needs, a sliding portion 431 is provided in the middle of the outer arc surface of the semicircular inner sleeve 43. The inner arc surface of the fixed clamp 41 and the inner arc surface of the movable clamp 42 are both provided with a sliding groove that matches the corresponding sliding portion 431 along the arc direction; preferably, the sliding groove is a dovetail groove or a T-shaped groove. According to needs, a blocking structure is provided at both ends of the sliding groove, that is, the sliding portion 431 cannot slip off from the end of the corresponding sliding groove.

[0023] A sliding link 421 is provided on one side of the movable clamp 42, which slides through the fixed clamp 41 along the direction of clamping the wire, and a limit piece 422 is provided on the outer end of the sliding link 421. A locking rod 423 is provided on the other side of the movable clamp 42, which moves through the fixed clamp 41 along the direction of clamping the wire, and a tooth structure 424 is provided on one side of the locking rod 423, and a clamping rod 411 is provided on the side of the fixed clamp 41 to cooperate with the tooth structure 424; that is, during installation, the sliding link 421 can be pulled axially, and the sliding link 421 drives the movable clamp 42 to move toward the fixed clamp 41 until the two semicircular inner sleeves 43 form a circular sleeve and clamp the sub-wire. At this time, the tooth structures 424 in the locking rod 423 are engaged with the clamping rod 411 one by one to achieve the function of fixing the movable clamp 42.

[0024] As required, the inner arc surface of the semicircular inner sleeve 43 is provided with a flexible layer 432 .

[0025] Since the two semicircular inner sleeves 43 form a circular ring sleeve, it can rotate with the twisting of the wire under the cooperation of the sliding part 431 and the corresponding sliding groove. At the same time, since the movable clamp 42 is connected to the fixed clamp 41 by the sliding connecting rod 421, the movable clamp 42 will not fall off during the installation process. When used, the semicircular inner sleeve 43 is connected to the corresponding fixed clamp 41 or the movable clamp 42 by the sliding groove, the semicircular inner sleeve 43 will not fall off during the installation process, which not only facilitates the installation, but also improves the safety factor.

[0026] Furthermore, combined with Figure 4 The support rod structure 2 includes a sleeve 21 with one end hinged to the outside of the main body frame 1. The inner cavity of the sleeve 21 is provided with a piston rod 22 extending from the outer end. The outer end of the piston rod 22 is fixedly connected to the middle of the elastic steel plate group 3; the inner cavity of the sleeve 21 is provided with buffer springs 23 at positions corresponding to both sides of the inner end of the piston rod 22.

[0027] Embodiment 2, combined with the attached Figure 1, an anti-dancing spacer, based on the first embodiment, a short steel wire rope 5 is suspended on the top of the inner side of the main frame 1, and a first anti-pendulum weight 6 located in the middle of the main frame 1 is provided at the lower end of the short steel wire rope 5; Anti-dancing springs 7 are provided between the two sides of the first anti-pendulum weight 6 and the corresponding inner side surfaces of the main body frame 1 ; the anti-dancing springs 7 are arranged horizontally as required.

[0028] This arrangement can suspend the first anti-pendulum 6 through the short steel wire rope 5, and effectively support the relative position between the main body frame 1 and the first anti-pendulum 6 through two anti-dancing springs 7, and the anti-dancing springs 7 can make the first anti-pendulum 6 effectively swing relative to the shaking caused by the main body frame 1, thereby being able to simultaneously suppress the synchronous dancing and asynchronous dancing of the sub-conductors.

[0029] Embodiment 3, in combination with the attached Figure 2 , an anti-dancing spacer rod, which is different from the second embodiment in that a short steel wire rope 5 is suspended at the top of the inner side of the main body frame 1, and a first anti-pendulum weight 6 located in the middle of the main body frame 1 is provided at the lower end of the short steel wire rope 5; A long steel wire rope 8 is provided at the bottom of the first anti-pendulum weight 6, and the lower end of the long steel wire rope 8 movably passes through the bottom of the main body frame 1 and is provided with a second anti-pendulum weight 9; The long steel wire rope 8 is provided with a pressing block 81 pressed on the bottom of the inner side of the main body frame 1; Such a setting can pull the first anti-pendulum 6 through the second anti-pendulum 9, and under the action of gravity, the relative positions between the second anti-pendulum 9 and the first anti-pendulum 6 and the main body frame 1 are adjusted. At this time, when the main body frame 1 shakes, due to the effect of inertia, the left and right positions of the second anti-pendulum 9 and the first anti-pendulum 6 will have hysteresis. However, since the second anti-pendulum 9 and the first anti-pendulum 6 are pulled by the corresponding steel wire rope, the shaking of the main body frame 1 needs to overcome the gravitational potential energy of the second anti-pendulum 9 and the first anti-pendulum 6, so the second anti-pendulum 9 and the first anti-pendulum 6 can effectively prevent the shaking of the main body frame 1. In addition, the rope body of the long steel wire rope 8 runs through the bottom of the main body frame 1. When the main body frame 1 deviates, the long steel wire rope 8 is bent at the position corresponding to the bottom of the main body frame 1, and the second anti-pendulum 9 needs to rise to a greater height. At this time, the deviation of the main body frame 1 needs to overcome more gravitational potential energy of the second anti-pendulum 9, further effectively overcoming the deviation of the main body frame 1.

[0030] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. An anti-dancing spacer rod, comprising a main body frame (1), wherein at least two support rod structures (2) are evenly spaced around the main body frame (1), and the main body frame (1) is characterized in that: The outer end of the support rod structure (2) is provided with an elastic steel plate group (3) corresponding to and perpendicular to the support rod structure, and both ends of the elastic steel plate group (3) are provided with a wire clamp structure (4); The elastic steel plate group (3) comprises an elastic steel plate A (31) whose middle part is arranged at the outer end of the support rod structure (2), wherein the elastic steel plate A (31) is provided with bending portions (311) at both ends of a plate surface, and an elastic steel plate B (32) is provided between the two bending portions (311) and whose center line is spaced parallel to the center line of the elastic steel plate A (31), and the plate surface of the elastic steel plate B (32) is perpendicular to the plate surface of the elastic steel plate A (31), and the elastic steel plate B (32) is provided with a wire clamp structure (4) at both ends.

2. The anti-dancing spacer according to claim 1, characterized in that: The wire clamp structure (4) comprises a fixed clamp (41) and a movable clamp (42); the inner arc surface of the fixed clamp (41) and the inner arc surface of the movable clamp (42) are both movably connected with a semicircular inner sleeve (43) along the arc direction; one side of the movable clamp (42) is provided with a sliding connecting rod (421) which slides through the fixed clamp (41) along the direction of clamping the wire, and a stopper (422) is provided at the outer end of the sliding connecting rod (421); the other side of the movable clamp (42) is provided with a locking rod (423) which movably penetrates the fixed clamp (41) along the direction of clamping the wire, and a reverse tooth structure (424) is provided on one side of the locking rod (423); and a clamping rod (411) which cooperates with the reverse tooth structure (424) is provided on the side of the fixed clamp (41).

3. The anti-dancing spacer according to claim 2, characterized in that: A sliding portion (431) is provided in the middle of the outer arc surface of the semicircular inner sleeve (43), and a sliding groove cooperating with the corresponding sliding portion (431) is provided along the arc direction of the inner arc surface of the fixed clamp (41) and the inner arc surface of the movable clamp (42).

4. The anti-dancing spacer according to claim 2, characterized in that: The inner arc surface of the semicircular inner sleeve (43) is provided with a flexible layer (432).

5. The anti-dancing spacer according to claim 1, characterized in that: The support rod structure (2) comprises a sleeve (21) having one end hinged to the outside of the main body frame (1); the inner cavity of the sleeve (21) is provided with a piston rod (22) extending from the outer end; the outer end of the piston rod (22) is fixedly connected to the middle of the elastic steel plate group (3); and the inner cavity of the sleeve (21) is provided with buffer springs (23) at positions corresponding to both sides of the inner end of the piston rod (22).

6. The anti-dancing spacer according to claim 1, characterized in that: A short steel wire rope (5) is suspended at the top of the inner side of the main body frame (1), and a first anti-pendulum weight (6) located in the middle of the main body frame (1) is provided at the lower end of the short steel wire rope (5).

7. The anti-dancing spacer according to claim 6, characterized in that: Anti-dancing springs (7) are provided between the two sides of the first anti-pendulum weight (6) and the inner side surfaces of the corresponding body frame (1).

8. The anti-dancing spacer according to claim 7, characterized in that: The anti-dancing spring (7) is arranged horizontally.

9. The anti-dancing spacer according to claim 6, characterized in that: A long steel wire rope (8) is provided at the bottom of the first anti-pendulum weight (6); the lower end of the long steel wire rope (8) movably passes through the bottom of the main body frame (1) and is provided with a second anti-pendulum weight (9); The long steel wire rope (8) is provided with a pressing block (81) pressed onto the inner bottom of the main body frame (1).

10. The anti-dancing spacer according to claim 1, characterized in that: The main body frame (1) is in the shape of a circular ring or a polygon.

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