Anti-vibration device for preventing aeolian vibration of cable

Abstract

The invention discloses an anti-vibration device for preventing aeolian vibration of a cable, and the device comprises a positioning frame, the bottom of the positioning frame is provided with a steel strand, the two ends of the steel strand are respectively provided with a heavy hammer, the side surface of the positioning frame is provided with a limiting frame, and the upper and lower sides of the limiting frame are respectively and rotatably connected with a first transmission rod. And a transmission plate is arranged on the first transmission rod, a positioning rod is arranged at one end of the transmission plate, one end of the positioning rod penetrates into the positioning frame and is connected with an arc-shaped clamping block, and threads are formed in the outer side of the first transmission rod. Compared with traditional bolt fixation, the arrangement can prevent the anti-vibration device from loosening, the anti-vibration device can float along with wind when the anti-vibration device is loosened due to abrasion between an arc-shaped clamping block and a cable in the use process, and when an adjusting ball drives a toothed plate to move downwards through an adjusting rod, the toothed plate can drive a positioning gear to rotate, so that the positioning gear can be positioned conveniently. And further clamping of the anti-vibration device is realized.

Description

Technical Field

[0001] The invention relates to the technical field of cable vibration prevention, and in particular to a vibration prevention device for preventing cables from vibrating in a breeze. Background Art

[0002] The ground wire of overhead transmission lines will vibrate under the action of continuous and steady wind. The amplitude of breeze vibration is small and generally difficult to observe with the naked eye. However, wind in nature exists all the time. Therefore, breeze vibration of overhead lines is a common vibration problem with a high frequency in the lines. Long-term breeze vibration can easily lead to wear of line hardware, broken wire strands, and even wire breakage accidents. The anti-vibration hammer is one of the most widely used vibration reduction devices in transmission lines. It is suspended on the conductor and converts the vibration energy of the conductor into internal energy and kinetic energy through the bending of its steel strands, friction between strands, and the vibration energy of the hammer head, thereby achieving the purpose of vibration reduction.

[0003] At present, the commonly used anti-vibration hammers are mainly bolt-type anti-vibration hammers according to the wire clamp type. The bolt-type anti-vibration hammer is installed on the wire by tightening the bolts to make the wire clamp clamp the wire. During the use of the bolt-type anti-vibration hammer, the bolts will loosen over time, and the anti-vibration hammer will slip. The slip of the anti-vibration hammer will weaken or even eliminate the vibration reduction ability of the anti-vibration hammer, causing the wire strands or wires to break. The existing anti-vibration device is generally fixed by bolts. The bolt fixation is prone to loosening during use, causing the anti-vibration device to slide on the cable, thus affecting the use effect. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and to propose a vibration-proof device for preventing cables from vibrating in breeze.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A vibration-proof device for preventing cables from vibrating in a breeze comprises a positioning frame, a steel strand is arranged at the bottom of the positioning frame, weights are arranged at both ends of the steel strand, a limit frame is arranged on the side of the positioning frame, the upper and lower sides of the limit frame are rotatably connected to a first transmission rod, a transmission plate is arranged on the first transmission rod, a positioning rod is arranged at one end of the transmission plate, one end of the positioning rod penetrates into the positioning frame and is connected to an arc-shaped clamping block, a thread is provided on the outer side of the first transmission rod, the first transmission rod and the transmission plate are threadedly connected, and a clamping part is arranged on the limit frame to prevent the first transmission rod from loosening.

[0006] Preferably, the clamping part includes a second transmission rod rotatably connected to the side wall of the limit frame, a driving bevel gear is arranged on the second transmission rod, a driven bevel gear is arranged at one adjacent end of the two first transmission rods, the driving bevel gear is meshingly connected with the driven bevel gear, a positioning gear is arranged at one end of the second transmission rod, and a one-way limiting mechanism for limiting the rotation of the positioning gear is arranged on the side of the limit frame.

[0007] Preferably, the one-way limiting mechanism includes a limiting seat arranged on the side of the limiting frame, a limiting rod is slidably connected to the limiting seat, a limiting plate is arranged at one end of the limiting rod, a tooth plate adapted to the positioning gear is arranged on the side of the limiting plate, and a first spring is arranged between the limiting plate and the limiting seat.

[0008] Preferably, a slide groove is provided on the bottom side of the limit plate, a slider is provided on the back side of the tooth plate, a slide rod is provided in the slide groove, the slide rod and the slider are slidably connected, and second springs are respectively provided at the upper and lower ends of the slider and the slide groove.

[0009] Preferably, a rotating shaft is provided on the limiting plate, a clamping block is rotatably connected to the rotating shaft, an arc spring is provided between the clamping block and the side surface of the limiting plate, and a plurality of oblique teeth are evenly distributed on the side surface of the tooth plate.

[0010] Preferably, an adjusting rod is provided at the bottom of the tooth plate, and an adjusting ball is provided at the bottom of the adjusting rod.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. Push the limit plate, the limit plate drives the tooth plate to move, the tooth plate 17 is separated from the positioning gear, and the first spring is compressed. When the anti-vibration device is installed, release the limit plate. Under the elastic force of the first spring, the limit plate is reset, the tooth plate and the positioning gear are engaged, and the positioning gear is rotated. The positioning gear drives the second transmission rod to rotate, and the second transmission rod drives the driving bevel gear to rotate. The driving bevel gear drives the two driven bevel gears to rotate synchronously, and the driven bevel gear drives the first transmission rod to rotate. The transmission plate will drive the arc clamping block to move through the positioning rod, so as to clamp the cable and fix the positioning frame. Compared with the traditional bolt fixing, this setting can prevent the anti-vibration device from loosening.

[0012] 2. During the use of this application, wear and tear may occur between the arc-shaped clamp block and the cable, causing them to loosen. At this time, the anti-vibration device will flutter in the wind. When the adjusting ball drives the tooth plate to move downward through the adjusting rod, the tooth plate can drive the positioning gear to rotate, thereby further clamping the anti-vibration device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1A schematic side view of the structure of an anti-vibration device provided according to an embodiment of the present invention is shown.

[0014] Figure 2 A schematic diagram of the front view of the anti-vibration device provided according to an embodiment of the present invention is shown.

[0015] Figure 3 A schematic diagram of the three-dimensional structure of an anti-vibration device provided according to an embodiment of the present invention is shown.

[0016] Figure 4 A schematic diagram of the front structure of a limiting plate provided according to an embodiment of the present invention is shown.

[0017] Figure 5 A schematic diagram of the back structure of a limiting plate provided according to an embodiment of the present invention is shown.

[0018] Legend: 1. Positioning frame; 2. Positioning rod; 3. Transmission plate; 4. Arc clamping block; 5. Limiting frame; 6. First transmission rod; 7. Driven bevel gear; 8. Second transmission rod; 9. Driving bevel gear; 10. Positioning gear; 11. Steel strand; 12. Weight; 13. Limiting plate; 14. Limiting seat; 15. Limiting rod; 16. First spring; 17. Tooth plate; 18. Second spring; 19. Bevel teeth; 20. Rotating shaft; 21. Block; 22. Arc spring; 23. Adjusting rod; 24. Adjusting ball; 25. Slide groove; 26. Sliding block; 27. Sliding rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5 , the present invention provides a technical solution: A vibration-proof device for preventing a cable from vibrating in a breeze comprises a positioning frame 1, a steel strand 11 is arranged at the bottom of the positioning frame 1, weights 12 are arranged at both ends of the steel strand 11, a limiting frame 5 is arranged on the side of the positioning frame 1, and the upper and lower sides of the limiting frame 5 are rotatably connected with a first transmission rod 6 respectively, a transmission plate 3 is arranged on the first transmission rod 6, a positioning rod 2 is arranged at one end of the transmission plate 3, one end of the positioning rod 2 penetrates into the positioning frame 1 and is connected with an arc-shaped clamping block 4, a thread is provided on the outer side of the first transmission rod 6, the first transmission rod 6 and the transmission plate 3 are threadedly connected, and a clamping portion for preventing the first transmission rod 6 from loosening is arranged on the limiting frame 5; an arc-shaped mounting hole is arranged on the positioning frame 1, two first transmission rods 6 are symmetrically arranged, the positioning rod 2 is slidably connected to the side wall of the positioning frame 1, and under the mutual cooperation of the first transmission rod 6 and the positioning rod 2, the first transmission rod 6 rotates, and the transmission plate 3 drives the arc-shaped clamping block 4 to move through the positioning rod 2, so as to clamp the cable and fix the positioning frame 1.

[0021] Specifically, Figure 1 As shown, the clamping part includes a second transmission rod 8 rotatably connected to the side wall of the limit frame 5, a driving bevel gear 9 is arranged on the second transmission rod 8, a driven bevel gear 7 is arranged at one end adjacent to the two first transmission rods 6, the driving bevel gear 9 is meshed and connected with the driven bevel gear 7, a positioning gear 10 is arranged at one end of the second transmission rod 8, and a one-way limiting mechanism for limiting the rotation of the positioning gear 10 is arranged on the side of the limit frame 5; a cross-shaped groove is provided on the end face of the positioning gear 10, which is convenient for using a plum screwdriver to twist the positioning gear 10, the second transmission rod 8 can not only be rotatably connected to the side of the limit frame 5, but also be rotatably connected to the side of the positioning frame 1, the two driven bevel gears 7 are evenly distributed on the side of the driving bevel gear 9, the positioning gear 10 is rotated, the positioning gear 10 drives the second transmission rod 8 to rotate, the second transmission rod 8 drives the driving bevel gear 9 to rotate, the driving bevel gear 9 drives the two driven bevel gears 7 to rotate synchronously, the driven bevel gear 7 drives the first transmission rod 6 to rotate, and the transmission plate 3 drives the arc clamping block 4 to move through the positioning rod 2.

[0022] Specifically, Figure 1As shown, the one-way limit mechanism includes a limit seat 14 arranged on the side of the limit frame 5, and a limit rod 15 is slidably connected to the limit seat 14. A limit plate 13 is arranged at one end of the limit rod 15, and a tooth plate 17 adapted to the positioning gear 10 is arranged on the side of the limit plate 13, and a first spring 16 is arranged between the limit plate 13 and the limit seat 14; under normal circumstances, the positioning gear 10 is engaged with the tooth plate 17, and the positioning gear 10 cannot rotate, which can prevent the anti-vibration device from loosening during use. When the anti-vibration device needs to be installed, the limit plate 13 is pushed, and the limit plate 13 drives the tooth plate 17 to move, and the tooth plate 17 is separated from the positioning gear 10, and the first spring 16 is compressed. When the anti-vibration device is installed, the limit plate 13 is released, and under the elastic force of the first spring 16, the limit plate 13 is reset, and the tooth plate 17 and the positioning gear 10 are engaged.

[0023] Specifically, Figure 1 As shown, a slide groove 25 is provided on the bottom side of the limit plate 13, a slider 26 is provided on the back of the tooth plate 17, a slide rod 27 is provided in the slide groove 25, the slide rod 27 and the slider 26 are slidably connected, and the slider 26 and the upper and lower ends of the slide groove 25 are respectively provided with a second spring 18, a rotating shaft 20 is provided on the limit plate 13, a clamping block 21 is rotatably connected on the rotating shaft 20, an arc spring 22 is provided between the clamping block 21 and the side of the limit plate 13, a plurality of oblique teeth 19 are evenly distributed on the side of the tooth plate 17, an adjusting rod 23 is provided at the bottom of the tooth plate 17, and an adjusting ball 24 is provided at the bottom of the adjusting rod 23; the limit plate 13 is L-shaped, the slider 26 can slide in the slide groove 25, the clamping block 21 is dovetail-shaped, and under normal conditions, the clamping block The front end of 21 is located in the slot formed by two adjacent bevel teeth 19, and the rear end of the block 21 abuts against the side of the limit plate 13, so that the block 21 can only rotate in one direction. The function of the arc spring 22 is to reset the block 21. During use, wear and tear will occur between the arc clamping block 4 and the cable, resulting in looseness. At this time, the anti-vibration device will float with the wind, and when the adjusting ball 24 drives the tooth plate 17 to move downward through the adjusting rod 23, the tooth plate 17 can drive the positioning gear 10 to rotate, thereby further clamping the anti-vibration device. Compared with the prior art, it can not only prevent the anti-vibration device from loosening, but also after the arc clamping block 4 or the cable is worn, the positioning gear 10 can be further rotated to achieve further clamping of the anti-vibration device.

[0024] To sum up, the anti-vibration device provided in the present embodiment is used to prevent the cable from vibrating in breeze. When the anti-vibration device needs to be installed, the limit plate 13 is pushed, and the limit plate 13 drives the tooth plate 17 to move, the tooth plate 17 is separated from the positioning gear 10, and the first spring 16 is compressed. When the anti-vibration device is installed, the limit plate 13 is released, and under the elastic force of the first spring 16, the limit plate 13 is reset, the tooth plate 17 and the positioning gear 10 are engaged, and the positioning gear 10 is rotated. The positioning gear 10 drives the second transmission rod 8 to rotate, and the second transmission rod 8 drives the driving bevel gear 9 to rotate, and the driving bevel gear 9 drives the two driven bevel gears 7 to rotate synchronously, and the driven bevel gear 7 drives the first transmission rod 6 to rotate, and the transmission plate 3 will drive the arc clamping block 4 to move through the positioning rod 2, so as to clamp the cable and fix the positioning frame 1.

[0025] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vibration-proof device for preventing a cable from vibrating in a breeze, characterized in that: include: Positioning frame, steel strand, heavy hammer, limit frame, first transmission rod, transmission plate, positioning rod and arc clamping block; An open cylindrical cavity is arranged inside the positioning frame; The bottom of the positioning frame is connected to the middle of the horizontal steel strand, and weights are arranged at both ends of the steel strand; A limiting frame is fixed on the side of the positioning frame, and the upper and lower surfaces of the limiting frame are respectively rotatably connected to the first transmission rod, and transmission plates are respectively arranged on the upper and lower first transmission rods; A positioning rod is arranged at one end of the transmission plate, and one end of the positioning rod extends into the open cylindrical cavity to connect with an arc-shaped clamping block; The first transmission rod and the transmission plate are threadedly connected; The side wall of the limiting frame is rotatably connected to a second transmission rod, one end of the second transmission rod is provided with a driving bevel gear, and adjacent ends of two first transmission rods are provided with driven bevel gears that mesh with the driving bevel gear.

2. The anti-vibration device for preventing cable vibration caused by breeze according to claim 1, characterized in that: The other end of the second transmission rod is provided with a one-way limiting mechanism, including: a limiting seat, a limiting rod, a limiting plate, a first spring, a sliding rod, a second spring, a rotating shaft, a clamping block, an arc spring and a positioning gear; The positioning gear is fixed to the other end of the second transmission rod and meshes with the toothed plate; Two limiting seats are fixed on the side of the limiting frame and are slidably connected to the limiting rod, and the limiting rod is fixedly connected to the limiting plate; A first spring is arranged between the limiting plate and the limiting seat; The limit plate is provided with a slide groove, the slide rod is fixed in the slide groove and is slidably connected with the slide block fixed on the back side of the tooth plate; The second springs are respectively arranged at the upper and lower ends of the slider and the slide slot; The rotating shaft is fixed on the limiting plate, and the clamping block is rotatably connected to the rotating shaft; An arc spring is connected between the clamping block and the limiting plate; A plurality of oblique teeth are evenly distributed on the side surface of the tooth plate to cooperate with the clamping block.

3. The anti-vibration device for preventing cable vibration caused by breeze according to claim 2, characterized in that: The bottom of the tooth plate is connected to the adjusting rod, and the bottom of the adjusting rod is connected to the adjusting ball.

4. The anti-vibration device for preventing cable vibration caused by breeze according to claim 3, characterized in that: The limit plate is also provided with a slide groove and a slide rod, as well as a slider fixed to the back of the tooth plate; the slide rod is fixed in the slide groove, the slider is slidably connected to the slide rod, and the upper and lower ends of the slider and the slide groove are respectively provided with a second spring for maintaining stable meshing between the tooth plate and the positioning gear.

5. The anti-vibration device for preventing cable vibration caused by breeze according to claim 4, characterized in that: A rotating shaft is also fixed on the limit plate, and a clamping block is rotatably connected to the rotating shaft, and an arc spring is connected between the clamping block and the limit plate; a plurality of oblique teeth are evenly distributed on the side of the tooth plate, and the front end of the clamping block can be inserted into the clamping groove formed by adjacent oblique teeth to limit the reverse movement of the tooth plate.

6. The anti-vibration device for preventing the cable from vibrating in breeze according to any one of claims 3 to 5, characterized in that: The bottom of the toothed plate is connected to an adjusting rod, and the bottom of the adjusting rod is connected to an adjusting ball, so that the toothed plate can be operated to move up and down by the adjusting ball, thereby controlling the rotation of the positioning gear.

7. The anti-vibration device for preventing cable vibration caused by breeze according to claim 1, characterized in that: A wear-resistant layer is arranged in the open cylindrical cavity of the positioning frame to reduce the wear between the arc-shaped clamping block and the cable and extend the service life of the anti-vibration device.

8. The anti-vibration device for preventing cable vibration caused by breeze according to claim 1, characterized in that: The inner surface of the arc-shaped clamping block is provided with an elastic pad to increase the friction between the arc-shaped clamping block and the cable, thereby improving the clamping effect of the anti-vibration device.

9. The anti-vibration device for preventing cable vibration caused by breeze according to claim 1, characterized in that: The weights arranged at both ends of the steel strand are weights with adjustable weights, so as to adjust the vibration reduction effect of the vibration-proof device according to the diameter of the cable and the wind conditions.

10. The anti-vibration device for preventing cable vibration caused by breeze according to claim 1, characterized in that: It also includes a fixing device for fixing the anti-vibration device on the cable. The fixing device can be but is not limited to a bolt, a clamp or a magnetic device to ensure the stability and reliability of the anti-vibration device on the cable.

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