Overhead conductor wind vibration suppression device

Abstract

The utility model provides a wind vibration suppression device for an overhead conductor, and the device comprises a connection part which is sleeved on the overhead conductor and is rotatably connected with the overhead conductor; and the counterweight part is rotationally mounted on the lower side of the connecting part. According to the device provided by the utility model, through the cooperative use of the counterweight part and the connecting part, when the overhead conductor gallops, the connecting part and the overhead conductor rotate relatively, and the counterweight part provides counter force for the overhead conductor based on the inertia of the counterweight part, reduces and disturbs the aerodynamic force load of the ice-coated overhead conductor, thereby achieving the effect of inhibiting the galloping of the overhead conductor, and prolonging the service life of the overhead conductor. And the overhead conductor is prevented from being broken during galloping.

Description

Technical Field

[0001] The utility model relates to the technical field of disaster prevention and reduction of power grids, and in particular to a wind vibration suppression device for overhead conductors. Background Art

[0002] Galloping is a low-frequency (0.1Hz~5Hz), large-amplitude (greater than 20D) self-excited vibration phenomenon caused by eccentric icing and strong winds on overhead wires.

[0003] Due to the influence of icing and strong winds on overhead wires, large-scale galloping will occur. Eccentric icing is a key factor in inducing galloping. It causes the overhead wires to be subjected to additional vertical lift and torsional torque. Under certain conditions, the aerodynamic damping force on the overhead wires not only fails to consume the low-frequency vibration energy, but will cause the energy to accumulate continuously, and the vibration will become more and more violent, thereby inducing galloping, and eventually causing the overhead wires to break, posing a safety hazard. In traditional technical means, after the galloping occurs, the on-site operation and maintenance personnel do not have any emergency management technical means such as active suppression, elimination and stopping, and can only wait for it to stop and eliminate on its own. Utility Model Content

[0004] In order to solve the problem that after the galloping occurs, there is no emergency management technical means such as active suppression, elimination and stopping in the prior art, and the only way is to wait for it to stop and eliminate by itself, the utility model provides an overhead wire wind vibration suppression device, including:

[0005] A connecting part, which is sleeved on the overhead wire and is rotatably connected to the overhead wire;

[0006] The counterweight part is rotatably mounted on the lower side of the connecting part.

[0007] Preferably, the counterweight portion comprises:

[0008] A counterweight chamber, the upper end of which is hinged to the lower side of the connecting portion; the rotation centerline of the counterweight chamber is parallel to the axis of the overhead conductor;

[0009] A plurality of counterweight blocks are accommodated in the counterweight cavity and are located at the lower inner side of the counterweight cavity.

[0010] Preferably, an energy absorbing unit is provided between the connecting portion and the counterweight portion;

[0011] The energy absorbing unit comprises:

[0012] The energy absorbing sleeve has an axis perpendicular to the axis of the connecting portion, an end close to the connecting portion is a closed end, hinged to the connecting portion, and an end away from the connecting portion is an open end;

[0013] The energy absorbing spring is installed in the energy absorbing sleeve, and its arrangement direction is the same as the extension direction of the energy absorbing sleeve. Its end close to the connecting part is fixedly connected to the inner wall of the energy absorbing sleeve, and its end away from the connecting part is fixedly connected to the counterweight part.

[0014] Preferably, the connecting portion comprises:

[0015] The connecting cylinder is an annular cylindrical structure, arranged along the extension direction of the overhead wire, and an opening is provided on its upper side along its axial direction;

[0016] A sealing unit is arranged at the opening.

[0017] Preferably, the connecting tube comprises: two arc-shaped plates;

[0018] The two arc-shaped plates are arranged opposite to each other to form the annular cylindrical structure, and the lower sides of the two arc-shaped plates are hinged, and the upper sides are the opening;

[0019] The enclosed unit comprises:

[0020] An even number of strip-shaped protrusions are installed on the upper sides of the two arc-shaped plates along the axial direction of the connecting tube; the strip-shaped protrusions are provided with L-shaped grooves along the axial direction of the connecting tube; the L-shaped grooves of every two strip-shaped protrusions are spliced ​​to form a complete closed groove, which is in a Π shape; the open end of the L-shaped groove is provided with an anti-slip groove along the radial direction of the connecting tube;

[0021] A closing strip, whose cross section is Π-shaped and matches the closing groove;

[0022] An anti-slip plate, having an interference fit with the anti-slip groove;

[0023] The closing strip is accommodated in a closed space formed by the anti-slip plate and the closing groove.

[0024] Preferably, at least one set of hinge units is provided between the connecting portion and the counterweight portion;

[0025] The hinge unit comprises:

[0026] Two hinged plates, the lower ends of the two hinged plates and the counterweight part are hinged to the same pin shaft, and the upper ends of the two hinged plates are respectively hinged to the lower sides of the two arc-shaped plates.

[0027] Preferably, the restraining device further comprises:

[0028] A plurality of inclined-stayed load-bearing cables, one end of which is connected to the end of the connecting portion and the other end of which is connected to the ground;

[0029] The wind vibration energy absorbing structure is a columnar elastic energy absorbing structure, which is squarely deformed along its own axis, installed on the inclined-stayed load-bearing cable, and coaxial with the inclined-stayed load-bearing cable.

[0030] Preferably, the wind vibration energy absorption structure comprises:

[0031] The reverse force frame is a columnar frame structure, and has a retractable space inside that can be deformed along its axial direction, and the inclined-stayed load-bearing cable is connected to both ends of the reverse force frame;

[0032] An energy absorbing component is installed in the retractable space, and its deformation direction is the same as that of the retractable space;

[0033] When the reverse force frame is extended, the energy absorbing assembly is compressed;

[0034] When the reverse force frame is shortened, the energy absorbing assembly is extended.

[0035] Preferably, the reverse force frame comprises:

[0036] A first reverse force frame assembly is arranged along the extension direction of the inclined load-bearing cable;

[0037] A second reverse force frame assembly is arranged along the extension direction of the inclined load-bearing cable and is slidably connected with the first reverse force frame assembly to form the retractable space;

[0038] The end of the first reverse force frame assembly away from the second reverse force frame assembly is fixedly connected to the inclined load-bearing cable;

[0039] The end of the second reverse force frame assembly away from the first reverse force frame assembly is fixedly connected to the oblique support cable.

[0040] Preferably, the first reverse force frame assembly comprises:

[0041] A first end pull plate is arranged in a direction perpendicular to the inclined support cable and is fixedly connected to the inclined support cable;

[0042] A second end pressing plate, arranged parallel to the first end pulling plate;

[0043] A plurality of first pull rods are parallel to each other, and two ends of the first pull rods are fixedly connected to the first end pull plate and the second end pressure plate respectively;

[0044] The second reverse force frame assembly comprises:

[0045] A second end pull plate is arranged in a direction parallel to the first end pull plate and is fixedly connected to the obliquely-stayed load-bearing cable;

[0046] A first end pressing plate is arranged parallel to the second end pulling plate and sleeved on the first pulling rod;

[0047] A plurality of second pull rods are parallel to each other, the second pull rods are parallel to the first pull rods, and the two ends of the second pull rods are respectively fixedly connected to the second end pull plate and the first end pressure plate; the second end pressure plate is sleeved on the second pull rods;

[0048] The first end pulling plate, the first end pressing plate, the second end pressing plate and the second end pulling plate are arranged in sequence, and the telescopic space is between the first end pressing plate and the second end pressing plate.

[0049] Preferably, the first reverse force frame assembly further comprises:

[0050] The buffer space is a rotating closed cavity with an arc-shaped inner wall, whose axis is parallel to the axis direction of the first pull rod, located between the first end pressure plate and the second end pressure plate, and fixedly connected to the plurality of first pull rods; the second pull rod is inserted into the buffer space;

[0051] The inner diameter parameter of the buffer space changes along the axis direction of the first pull rod as follows: increasing from the minimum inner diameter to the maximum inner diameter, and then decreasing to the minimum inner diameter;

[0052] The second reverse force frame assembly also includes:

[0053] an annular plate, coaxially arranged in the rotating closed cavity, and having an outer diameter smaller than the maximum inner diameter of the buffer space and larger than the minimum inner diameter of the buffer space; the annular plate is fixedly connected to the plurality of second tie rods;

[0054] An intermediate pressing plate, parallel to the second end pressing plate, located between the buffer space and the second end pressing plate, and fixedly connected to the plurality of second tie rods;

[0055] The space between the first end pressure plate and the buffer space is the first end telescopic space;

[0056] The space between the second end pressing plate and the middle pressing plate is the second end telescopic space;

[0057] The energy absorbing components are respectively installed in the first end telescopic space and the second end telescopic space.

[0058] Preferably, the energy absorbing component comprises:

[0059] A plurality of pressure springs are arranged along the telescopic direction of the reverse force frame and are respectively fixedly installed in the telescopic space at the first end and the telescopic space at the second end.

[0060] Preferably, the pressure spring installed in the telescopic space of the first end is sleeved on the first pull rod and / or the second pull rod;

[0061] Two ends of the pressure spring are respectively in contact with the first end pressure plate and the buffer space.

[0062] Preferably, the pressure spring installed in the telescopic space of the second end is sleeved on the first pull rod and / or the second pull rod;

[0063] Two ends of the pressure spring are respectively in contact with the second end pressure plate and the middle pressure plate.

[0064] Compared with the prior art, the beneficial effects of the utility model are:

[0065] The utility model provides an overhead wire wind vibration suppression device, comprising: a connection part, which is sleeved on the overhead wire and rotatably connected with the overhead wire; and a counterweight part, which is rotatably installed on the lower side of the connection part. The device provided by the utility model uses the counterweight part and the connection part in coordination. When the overhead wire dances, the connection part and the overhead wire rotate relatively. The counterweight part provides a reaction force to the overhead wire based on its own inertia, reduces and disrupts the aerodynamic load of the ice-covered overhead wire, achieves the effect of suppressing the dancing of the overhead wire, and prevents the overhead wire from breaking when dancing. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 It is a structural schematic diagram of the overhead wire wind vibration suppression device of the utility model;

[0067] Figure 2 It is a schematic diagram of the assembly structure of the connection part, the hinge unit, the energy absorption unit and the counterweight part of the utility model;

[0068] Figure 3 for Figure 2 A magnified view of part A;

[0069] Figure 4 It is a cross-sectional structural schematic diagram of the overhead conductor wind vibration suppression device of the utility model;

[0070] Figure 5 It is an exploded structural diagram of the connection part of the utility model;

[0071] Figure 6 It is a structural schematic diagram of the wind vibration energy absorption structure of the utility model;

[0072] Figure 7 It is a schematic diagram of the axial cross-sectional structure of the wind vibration energy absorption structure of the utility model.

[0073] Among them, 1. connecting part; 11. connecting tube; 111. arc plate; 112. strip-shaped protrusion; 113. closing strip; 114. anti-slip plate; 12. bearing; 13. flange plate; 14. anti-friction plate; 15. sleeve; 2. hinge unit; 21. hinge plate; 3. energy absorption unit; 31. energy absorption sleeve; 32. energy absorption spring; 4. counterweight part; 41. counterweight cavity; 42. counterweight block; 5. oblique-stayed load-bearing cable; 6. wind-vibration energy absorption structure; 60. first pull rod; 61. first end pull plate; 62. first end pressure plate; 63. buffer space; 64. middle pressure plate; 65. second end pressure plate; 66. second end pull plate; 67. annular plate; 68. pressure spring; 69. second pull rod. DETAILED DESCRIPTION

[0074] In order to better understand the present invention, the present invention is further described below with reference to the accompanying drawings and examples.

[0075] The utility model provides an overhead wire wind vibration suppression device. Through the coordinated use of a counterweight part and a connecting part, when the overhead wire dances, the connecting part and the overhead wire rotate relatively, and the counterweight part provides a reaction force to the overhead wire based on its own inertia, thereby reducing and disrupting the aerodynamic load of the ice-covered overhead wire, achieving the effect of suppressing the dancing of the overhead wire and preventing the overhead wire from breaking when dancing.

[0076] Example:

[0077] The utility model provides an overhead wire wind vibration suppression device, such as Figure 1 As shown, it includes: a connecting part 1, which is in a circular ring shape, is sleeved on the overhead wire, and is rotatably connected to the overhead wire; a counterweight part 4, which is rotatably installed on the lower side of the connecting part 1, and a counterweight unit with weight is arranged inside it; the center of gravity of the counterweight part 4 is located in the lower part thereof.

[0078] like Figure 4 and Figure 5 As shown, the connection part 1 includes: a connection tube 11, which is an annular cylindrical structure, arranged along the extension direction of the overhead conductor, and an opening is provided on its upper side along its axial direction; a closed unit is provided at the opening. In this embodiment, a sleeve 15 is sleeved on the overhead conductor. The matching form of the sleeve 15 and the overhead conductor and whether it rotates are not limited in this application. The connection tube 11 is sleeved on the sleeve 15 and is rotatably connected with the sleeve 15. In order to reduce the friction between the connection tube 11 and the sleeve 15, a plurality of bearings 12 are sleeved between the outer side of the sleeve 15 and the inner side of the connection tube 11. Flange plates 13 are provided at both ends of the sleeve 15. In order to reduce the wear of the connection tube 11 and the flange plate 13 when the connection tube 11 rotates, an anti-friction plate 14 is provided between the connection tube 11 and the flange plate 13. In this embodiment, the connection tube 11, the anti-friction plate 14 and the flange plate 13 all have a high degree of smoothness.

[0079] The connecting tube 11 comprises: two arc-shaped plates 111, which are arranged along the extension direction of the overhead wire, and are hinged at the lower side, and the upper side is the above-mentioned opening; the closing unit comprises: an even number of strip protrusions 112, which are installed on the upper side of the two arc-shaped plates 111 along the axial direction of the connecting tube 11; the strip protrusions 112 are provided with L-shaped grooves along the axial direction of the connecting tube 11; the L-shaped grooves of every two strip protrusions 112 are spliced ​​to form a complete closed groove, which is Π-shaped; the open end of the L-shaped groove is provided with an anti-slip groove along the radial direction of the connecting tube 11; the closing strip 113, whose cross-section is Π-shaped and adapted to the closed groove; the anti-slip plate 114, which is interference fit with the anti-slip groove; the closing strip 113 is accommodated in the closed space formed by the anti-slip plate 114 and the closed groove.

[0080] In this embodiment, in order to prevent the connection tube 11 from being corroded and replaced due to wind and rain when used outside for a long time, the connection tube 11 of the present application is set as a detachable structure, specifically, two arc plates 111 are arranged along the extension direction of the overhead wire, and the openings of the two arc plates 111 are arranged relative to each other, and a complete cylindrical structure is formed by hinged lower side and detachable fixed connection of the upper side. Its detachable fixed connection is completed by the mutual cooperation of the strip protrusion 112, the closing strip 113 and the anti-slip plate 114. In this embodiment, two strip protrusions 112 are arranged on the upper side of each arc plate 111, and the two strip protrusions 112 on the same arc plate 111 are arranged along the axial direction of the connection tube 11, and the strip protrusions 112 respectively located on the two arc plates 111 can contact and splice into a larger rectangular protrusion. The rectangular protrusion is provided with a closed groove along the axial direction of the connection tube 11, and the closed strip 113 is installed in the closed groove, and the length of the closed strip 113 is less than the depth of the closed groove. A rectangular anti-slip groove is provided at the opening of the closed groove along the radial direction of the connecting tube 11, and the distance from the anti-slip groove to the bottom wall of the closed groove is not less than the length of the closing strip 113. In this embodiment, the distance from the anti-slip groove to the bottom wall of the closed groove is not less than the length of the closing strip 113 to prevent interference when installing the anti-slip plate 114; in this embodiment, the anti-slip plate 114 is a rectangular plate and is embedded in the anti-slip groove with an interference fit, so that the closing strip 113 is encapsulated in the closed groove, thereby realizing a detachable fixed connection between the two arc-shaped plates 111.

[0081] At least one set of hinge units 2 is arranged between the connecting part 1 and the counterweight part 4. Figure 2 and Figure 3As shown; the hinge unit 2 includes: two hinge plates 21, the lower ends of which are hinged to the same pin shaft with the counterweight part 4, and the upper ends of which are respectively hinged to the lower sides of the two arc-shaped plates 111. In this embodiment, there are two groups of hinge units 2, and the two groups of hinge units 2 are symmetrically installed with the middle section of the connecting tube 11 as the symmetry plane. Each group of hinge units 2 includes three hinge seats and two hinge plates 21, and the hinge plates 21 are specifically strip-shaped structures; the three hinge seats are respectively fixedly installed on the two arc-shaped plates 111 and the top of the counterweight part 4, one end of the two hinge plates 21 is hinged to the hinge seat installed on the top of the counterweight part 4, and the other end is respectively hinged to the two hinge seats installed on the two arc-shaped plates 111. The two fixedly connected arc plates 111 and the two hinge plates 21 form a triangular stable structure, so that when the device is in use, the deflection force will be transmitted through the hinge plates 21 instead of directly acting on the connecting tube 11, which is beneficial to the service life of the device.

[0082] like Figure 2 and Figure 4 As shown, the counterweight part 4 includes: a counterweight cavity 41, which is a box structure, and its upper end is hinged to the lower side of the connecting part 1; the rotation center line of the counterweight cavity 41 is parallel to the axis of the overhead wire; a plurality of counterweight blocks 42 are accommodated in the box structure and located on the lower side of the box structure. In this embodiment, the counterweight cavity 41 is a completely sealed rectangular cavity, and its height is greater than its cross-sectional width and length, and a placement port is provided on a side in a height direction of the counterweight cavity 41 for adding counterweight blocks 42 into the counterweight cavity 41, and a U-shaped slot is provided on one side of the placement port facing the outer side of the counterweight cavity 41, and the U-shaped opening faces upward. A packaging plate adapted to the U-shaped slot is clamped in the U-shaped slot from top to bottom. When the packaging plate is clamped in the U-shaped slot, the counterweight cavity 41 is completely sealed to prevent the counterweight block 42 from falling out of the placement port during use. In this embodiment, the counterweight block 42 is spherical, which facilitates the free movement of the counterweight block 42 during use so as to provide a more appropriate counterweight reaction force. The material and quantity are selected according to the specific needs of the construction and are not limited in this embodiment.

[0083] An energy absorbing unit 3 is provided between the connecting portion 1 and the counterweight portion 4; the energy absorbing unit 3 comprises: an energy absorbing sleeve 31, whose axis is perpendicular to the axis of the connecting portion 1, and whose end close to the connecting portion 1 is a closed end and is hinged to the connecting portion 1; and whose end away from the connecting portion 1 is an opening; an energy absorbing spring 32, which is installed in the energy absorbing sleeve 31, and whose arrangement direction is the same as the extension direction of the energy absorbing sleeve 31, and whose end close to the connecting portion 1 is fixedly connected to the inner wall of the energy absorbing sleeve 31, and whose end away from the connecting portion 1 is fixedly connected to the counterweight portion 4. In this embodiment, the energy absorbing sleeve 31 comprises an energy absorbing top plate and a cylindrical energy absorbing cavity, and a pancake-shaped threaded disk extends from the lower surface of the energy absorbing top plate, specifically, an external thread is provided on the circumference of a circular pancake-shaped protrusion, and the opening of the energy absorbing cavity is located at the upper end and is provided with an internal thread, and the pancake-shaped threaded disk is threadedly connected to the opening of the energy absorbing cavity, and the end of the energy absorbing cavity away from its opening is a closed end. The upper end of the counterweight part 4 is fixedly connected with a buffer part, and its structure includes a connecting rod extending along the axial direction of the energy absorption cavity and a disc having the same size as the inner diameter of the energy absorption cavity, and the disc is located at the end of the connecting rod away from the counterweight part 4. A through hole for the connecting rod to pass through is provided on the side of the energy absorption cavity away from the opening, and the connecting rod is inserted in the through hole, and the disc is located on the opening side of the energy absorption cavity. The energy absorption spring 32 is squeezed between the disc and the closed end of the energy absorption cavity, and deforms along the axial direction of the energy absorption cavity. In this embodiment, the energy absorption unit 3 is arranged in two groups, and a connecting plate is arranged at the end of the connecting rod away from the disc, and the connecting plate is fixedly connected to the counterweight part 4 by bolts. The hinge seat where the hinged ends of the two hinged plates 21 are located is installed on the top wall of the energy absorption top plate.

[0084] The restraining device also includes: a plurality of inclined-stayed load-bearing cables 5, one end of which is connected to the end of the connecting portion 1, and the other end is connected to the ground; a wind vibration energy absorption structure 6, which is a columnar elastic energy absorption structure, which is squarely deformed along its own axis, installed on the inclined-stayed load-bearing cables 5, and coaxial with the inclined-stayed load-bearing cables 5; the elastic energy absorption structure includes a structure that absorbs and / or releases energy through elastic deformation. In this embodiment, the inclined-stayed load-bearing cables 5 are divided into two groups, each group has three cables, the upper ends of the two groups of inclined-stayed load-bearing cables 5 are respectively tied to the flange plate 13, and the lower ends are fixed to the ground, and the three inclined-stayed load-bearing cables 5 in the same group are gradually spaced from top to bottom, and the two groups of inclined-stayed load-bearing cables 5 are installed in a mirror-symmetrical manner, and the inclined-stayed load-bearing cables 5 are in a tensioned state. At least one wind vibration energy absorption structure 6 is installed on each inclined-stayed load-bearing cable 5, and three are selected in this embodiment. Meanwhile, six inclined-stayed load-bearing cables 5 are selected and divided into two groups, which are respectively installed on two flange plates 13, and three inclined-stayed load-bearing cables 5 in one group are symmetrically arranged with three inclined-stayed load-bearing cables 5 in another group.

[0085] like Figure 6 and Figure 7As shown, the wind-vibration energy absorption structure 6 includes: a reverse force frame, which is a columnar frame structure, and has a retractable space inside that can be deformed along its axial direction, and the inclined load-bearing cable 5 is connected to both ends of the reverse force frame; an energy absorption component is installed in the retractable space, and the deformation direction is the same as the deformation direction of the retractable space; when the reverse force frame is extended, the energy absorption component is compressed; when the reverse force frame is shortened, the energy absorption component is extended.

[0086] The reverse force frame includes: a first reverse force frame assembly, which is arranged along the extension direction of the oblique load-bearing cable 5; a second reverse force frame assembly, which is arranged along the extension direction of the oblique load-bearing cable 5 and is slidably connected to the first reverse force frame assembly to form a retractable space; the end of the first reverse force frame assembly away from the second reverse force frame assembly is fixedly connected to the oblique load-bearing cable 5; the end of the second reverse force frame assembly away from the first reverse force frame assembly is fixedly connected to the oblique load-bearing cable 5; the retractable space retracts and contracts with the sliding of the first reverse force frame assembly and the second reverse force frame assembly.

[0087] The first reverse force frame assembly includes: a first end pull plate 61, arranged in a direction perpendicular to the inclined support cable 5 and fixedly connected to the inclined support cable 5; a second end pressure plate 65, arranged parallel to the first end pull plate 61; a plurality of first pull rods 60, which are parallel to each other, and the two ends of the first pull rod 60 are respectively fixedly connected to the first end pull plate 61 and the second end pressure plate 65; the second reverse force frame assembly includes: a second end pull plate 66, arranged in a direction parallel to the first end pull plate 61, and fixedly connected to the inclined support cable 5; the first end pressure plate 62, is arranged parallel to the second end pull plate 66, and is sleeved on the first pull rod 60; multiple second pull rods 69 are parallel to each other, the second pull rod 69 is parallel to the first pull rod 60, and the two ends of the second pull rod 69 are respectively fixedly connected to the second end pull plate 66 and the first end pressure plate 62; the second end pressure plate 65 is sleeved on the second pull rod 69; the first end pull plate 61, the first end pressure plate 62, the second end pressure plate 65 and the second end pull plate 66 are arranged in sequence, and there is a retractable space between the first end pressure plate 62 and the second end pressure plate 65.

[0088] The first reverse force frame assembly also includes: a buffer space 63, which is a rotating closed cavity with an arc-shaped inner wall, and its inner diameter parameter changes along the axial direction of the first pull rod 60: from the minimum inner diameter to the maximum inner diameter, and then decreases to the minimum inner diameter, and its axis is parallel to the axial direction of the first pull rod 60, located between the first end pressure plate 62 and the second end pressure plate 65, and fixedly connected to the plurality of first pull rods 60; the second pull rod 69 is inserted into the buffer space 63; the second reverse force frame assembly also includes: an annular plate 67, which is coaxially arranged in the rotating closed cavity, and its outer diameter Smaller than the maximum inner diameter of the buffer space 63 and larger than the minimum inner diameter of the buffer space 63; the annular plate 67 is fixedly connected to multiple second tie rods 69; the intermediate pressure plate 64, which is parallel to the second end pressure plate, is located between the buffer space 63 and the second end pressure plate 65, and is fixedly connected to multiple second tie rods 69; the space between the first end pressure plate 62 and the buffer space 63 is the first end telescopic space; the space between the second end pressure plate 65 and the intermediate pressure plate 64 is the second end telescopic space; the energy absorption components are respectively installed in the first end telescopic space and the second end telescopic space.

[0089] The energy absorption assembly includes: a plurality of pressure springs 68, which are arranged along the telescopic direction of the reverse force frame and are fixedly installed in the telescopic space at the first end and the telescopic space at the second end, respectively. The pressure spring 68 installed in the telescopic space at the first end is sleeved on the first pull rod 60 and / or the second pull rod 69; the two ends of the pressure spring 68 are respectively in contact with the first end pressure plate 62 and the buffer space 63. The pressure spring 68 installed in the telescopic space at the second end is sleeved on the first pull rod 60 and / or the second pull rod 69; the two ends of the pressure spring 68 are respectively in contact with the second end pressure plate 65 and the middle pressure plate 64.

[0090] In this embodiment, the first end pull plate 61, the first end pressure plate 62, the buffer space 63, the middle pressure plate 64, the second end pressure plate 65, and the second end pull plate 66 are arranged in sequence along the extension direction of the inclined-stayed load-bearing cable 5, and the annular plate 67 arranged in the buffer space 63 is arranged in parallel with the first end pull plate 61, the first end pressure plate 62, the middle pressure plate 64, the second end pressure plate 65, and the second end pull plate 66. The plurality of first pull rods 60 are arranged in parallel and are fixedly connected in sequence to the first end pull plate 61, the buffer space 63, and the second end pull plate 66. and the second end pull plate 66. In the structure provided in the present application, the first pull rod 60 is arranged in two groups, which are respectively arranged on both sides of the buffer space 63, and are respectively connected to the first end pull plate 61 and the second end pressure plate 65; multiple second pull plates are arranged in parallel, and are fixedly connected to the first end pressure plate 62, the annular plate 67, the middle pressure plate 64 and the second end pull plate 66 in sequence; the first pull rod 60 is passed through the first end pressure plate 62 and the middle pressure plate 64, and the second pull rod 69 is passed through the buffer space 63 and the second end pull plate 66.

[0091] The buffer space 63 in this embodiment is provided with two interconnected spaces, both of which are rotating cavities of equal size and arc-shaped inner side walls, and at the same time, two annular plates 67 are also provided, the outer sides of which are arc-shaped and contact the arc-shaped inner side walls of the buffer space 63. When the inclined-stayed load-bearing cable 5 is subjected to tension, the annular plates 67 and the buffer space 63 will generate extrusion force to offset the tension exerted on the inclined-stayed load-bearing cable 5.

[0092] The pressure spring 68 selected in this embodiment is sleeved on the second pull rod 69 in the first end telescopic space and the second end telescopic space, and the two ends are respectively in contact with the first end pressure plate 62 and the buffer space 63, as well as the middle pressure plate 64 and the second end pressure plate 65. When the inclined-stayed load-bearing cable 5 is subjected to tension, the first end telescopic space and the second section telescopic space are contracted, and the axial distance between them is reduced, so that the pressure spring 68 is squeezed, thereby providing an elastic force in the opposite direction of the contraction of the first end telescopic space and the second section telescopic space, offsetting the tension on the inclined-stayed load-bearing cable 5, and restoring the wind vibration energy absorption structure 6 to its original state.

[0093] When the overhead wire is vibrated by wind, at least two of the six inclined support cables 5 will provide the overhead wire with a force in the opposite direction of its dancing through their own tension to prevent the overhead wire from dancing. Moreover, the counterweight block 42 of the counterweight part 4 continuously provides a downward pulling force to the overhead wire based on its own gravity, thereby providing the overhead wire with a force in the opposite direction of its dancing, reducing the dancing amplitude of the overhead wire. The energy absorption unit 3 and the wind vibration energy absorption structure 6 provided in the present application can prevent the overhead wire from being broken by the reverse force provided by the counterweight part 4 and the inclined support cables 5 when dancing.

[0094] Obviously, the described embodiments are only some embodiments of the utility model, but not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0095] The above are merely embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application are included in the scope of the claims of the present application.

Claims

1. An overhead wire wind vibration suppression device, characterized in that: include: A connecting part (1) is sleeved on the overhead wire and is rotatably connected to the overhead wire; The counterweight part (4) is rotatably mounted on the lower side of the connecting part (1).

2. The overhead wire wind vibration suppression device according to claim 1, characterized in that: The counterweight part (4) comprises: A counterweight chamber (41), the upper end of which is hinged to the lower side of the connecting portion (1); the rotation center line of the counterweight chamber (41) is parallel to the axis of the overhead conductor; A plurality of counterweight blocks (42) are accommodated in the counterweight cavity (41) and are located at the lower inner side of the counterweight cavity (41).

3. The overhead wire wind vibration suppression device according to claim 1, characterized in that: An energy absorbing unit (3) is provided between the connecting portion (1) and the counterweight portion (4); The energy absorbing unit (3) comprises: The energy absorbing sleeve (31) has an axis perpendicular to the axis of the connecting portion (1), an end close to the connecting portion (1) is a closed end and is hinged to the connecting portion (1), and an end away from the connecting portion (1) is an open end; An energy absorbing spring (32) is installed in the energy absorbing sleeve (31) and is arranged in the same direction as the extension direction of the energy absorbing sleeve (31). Its end close to the connecting portion (1) is fixedly connected to the inner wall of the energy absorbing sleeve (31), and its end away from the connecting portion (1) is fixedly connected to the counterweight portion (4).

4. The overhead wire wind vibration suppression device according to claim 1, characterized in that: The connecting portion (1) comprises: The connecting tube (11) is an annular cylindrical structure, arranged along the extension direction of the overhead wire, and has an opening on its upper side along its axial direction; A closing unit is arranged at the opening.

5. The overhead wire wind vibration suppression device according to claim 4, characterized in that: The connecting tube (11) comprises: two arc-shaped plates (111); The two arc-shaped plates (111) are arranged opposite to each other to form the annular cylindrical structure, and the lower sides of the two arc-shaped plates (111) are hinged, and the upper sides are the opening; The enclosed unit comprises: An even number of strip-shaped protrusions (112) are installed on the upper sides of the two arc-shaped plates (111) along the axial direction of the connecting tube (11); the strip-shaped protrusions (112) are provided with L-shaped grooves along the axial direction of the connecting tube (11); the L-shaped grooves of every two strip-shaped protrusions (112) are spliced ​​to form a complete closed groove in a Π shape; an anti-slip groove is provided at the open end of the L-shaped groove along the radial direction of the connecting tube (11); A closing strip (113) having a Π-shaped cross section and adapted to fit the closing groove; An anti-slip plate (114) having an interference fit with the anti-slip groove; The closing strip (113) is accommodated in a closed space formed by the anti-slip plate (114) and the closing groove.

6. The overhead wire wind vibration suppression device according to claim 5, characterized in that: At least one set of hinge units (2) is provided between the connecting portion (1) and the counterweight portion (4); The hinge unit (2) comprises: The two hinged plates (21) have their lower ends hinged to the same pin shaft with the counterweight part (4), and their upper ends are respectively hinged to the lower sides of the two arc-shaped plates (111).

7. The overhead wire wind vibration suppression device according to claim 1, characterized in that: The restraining device also includes: A plurality of inclined load-bearing cables (5), one end of which is connected to the end of the connecting portion (1) and the other end of which is connected to the ground; The wind vibration energy absorption structure (6) is a columnar elastic energy absorption structure, which is squarely deformed along its own axis, installed on the inclined support cable (5), and coaxial with the inclined support cable (5).

8. The overhead wire wind vibration suppression device according to claim 7, characterized in that: The wind vibration energy absorption structure (6) comprises: The reverse force frame is a columnar frame structure, and has a retractable space inside that can be deformed along its axial direction. The inclined support cable (5) is connected to both ends of the reverse force frame; An energy absorbing component is installed in the retractable space, and its deformation direction is the same as that of the retractable space; When the reverse force frame is extended, the energy absorbing assembly is compressed; When the reverse force frame is shortened, the energy absorbing assembly is extended.

9. The overhead wire wind vibration suppression device according to claim 8, characterized in that: The reverse force frame comprises: A first reverse force frame assembly is arranged along the extension direction of the inclined support cable (5); A second reverse force frame assembly is arranged along the extension direction of the inclined support cable (5) and is slidably connected to the first reverse force frame assembly to form the retractable space; The end of the first reverse force frame assembly away from the second reverse force frame assembly is fixedly connected to the inclined load-bearing cable (5); The end of the second reverse force frame assembly away from the first reverse force frame assembly is fixedly connected to the inclined support cable (5).

10. The overhead wire wind vibration suppression device according to claim 9, characterized in that: The first reverse force frame assembly comprises: A first end pull plate (61) is arranged in a direction perpendicular to the oblique support cable (5) and is fixedly connected to the oblique support cable (5); A second end pressing plate (65) is arranged parallel to the first end pulling plate (61); A plurality of first pull rods (60) are parallel to each other, and two ends of the first pull rods (60) are respectively fixedly connected to the first end pull plate (61) and the second end pressure plate (65); The second reverse force frame assembly comprises: A second end pull plate (66) is arranged in a direction parallel to the first end pull plate (61) and is fixedly connected to the oblique load-bearing cable (5); A first end pressure plate (62) is arranged parallel to the second end pull plate (66) and sleeved on the first pull rod (60); A plurality of second pull rods (69) are parallel to each other, the second pull rods (69) are parallel to the first pull rod (60), and the two ends of the second pull rod (69) are respectively fixedly connected to the second end pull plate (66) and the first end pressure plate (62); the second end pressure plate (65) is sleeved on the second pull rod (69); The first end pulling plate (61), the first end pressing plate (62), the second end pressing plate (65) and the second end pulling plate (66) are arranged in sequence, and the telescopic space is between the first end pressing plate (62) and the second end pressing plate (65).

11. The overhead wire wind vibration suppression device according to claim 10, characterized in that: The first reverse force frame assembly also includes: The buffer space (63) is a rotating closed cavity with an arc-shaped inner wall, the axis of which is parallel to the axis of the first pull rod (60), located between the first end pressure plate (62) and the second end pressure plate (65), and fixedly connected to the plurality of first pull rods (60); the second pull rod (69) is disposed through the buffer space (63); The inner diameter parameter of the buffer space (63) changes along the axial direction of the first pull rod (60) as follows: increasing from the minimum inner diameter to the maximum inner diameter, and then decreasing to the minimum inner diameter; The second reverse force frame assembly also includes: an annular plate (67), coaxially arranged in the rotating closed cavity, and having an outer diameter smaller than the maximum inner diameter of the buffer space (63) and larger than the minimum inner diameter of the buffer space (63); the annular plate (67) is fixedly connected to the plurality of second tie rods (69); An intermediate pressing plate (64), which is parallel to the second end pressing plate, is located between the buffer space (63) and the second end pressing plate (65), and is fixedly connected to the plurality of second tie rods (69); The space between the first end pressure plate (62) and the buffer space (63) is a first end telescopic space; The space between the second end pressing plate (65) and the middle pressing plate (64) is a second end telescopic space; The energy absorbing components are respectively installed in the first end telescopic space and the second end telescopic space.

12. The overhead wire wind vibration suppression device according to claim 11, characterized in that: The energy absorbing component comprises: A plurality of pressure springs (68) are arranged along the telescopic direction of the reverse force frame and are respectively fixedly installed in the first end telescopic space and the second end telescopic space.

13. The overhead wire wind vibration suppression device according to claim 12, characterized in that: The pressure spring (68) installed in the telescopic space of the first end is sleeved on the first pull rod (60) and / or the second pull rod (69); Both ends of the pressure spring (68) are in contact with the first end pressure plate (62) and the buffer space (63) respectively.

14. The overhead wire wind vibration suppression device according to claim 12, characterized in that: The pressure spring (68) installed in the telescopic space of the second end is sleeved on the first pull rod (60) and / or the second pull rod (69); Both ends of the pressure spring (68) are in contact with the second end pressure plate (65) and the middle pressure plate (64) respectively.

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