High-damping viscoelastic power transmission line anti-galloping vibration reduction device and working method thereof

Abstract

The invention discloses a high-damping viscoelastic power transmission line anti-galloping vibration reduction device and a working method thereof, and relates to the technical field of power transmission line anti-galloping vibration reduction. Comprising a mounting unit which comprises two groups of end plates, and the two groups of end plates are arranged in a mirroring manner; the damping unit comprises an outer cylinder. According to the device, when the power transmission line gallops in the axial direction of the device, the spring and the viscoelastic block in the device can consume galloping energy through extrusion deformation, so that galloping of the power transmission line is reduced, a phase line is controlled to keep a safety gap, the safety of the power transmission line is improved, and when the spring participates in work and the vibration amplitude is increased in the shell, the viscoelastic block participates in work. And the spring can also play a role in resetting. When the vibration amplitude is very large, the viscoelastic blocks deform due to large-amplitude extrusion and then make contact with the inner wall of the outer cylinder to be restrained, larger damping force and compression counterforce are provided, and therefore the overall stability of the device is guaranteed, and the wires are prevented from further waving.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-dancing and vibration reduction of power transmission lines, and in particular to a high-damping viscoelastic power transmission line anti-dancing and vibration reduction device and a working method thereof. Background Art

[0002] A safe and stable power system is an important guarantee for the development of various industries in the country. As an important part of the power system, overhead high-voltage transmission lines are closely related to the safety and efficiency of the entire power system. In many areas, due to the influence of terrain and location, transmission lines are often covered with rime and ice. After the ice melts and falls off, it will produce an impact load on the transmission line, and the conductor will produce a low-frequency, large-scale dance. Due to the large amplitude of the dance, it is easy to cause harm to the transmission line, causing phase-to-phase flashover, damage to the transmission line and ground wire, hardware and components, and even more serious accidents such as line tripping and power outage, broken wires and tower collapse.

[0003] At present, the main anti-dancing measures for transmission lines are to install anti-dancing devices on the transmission lines, such as spoiler anti-dancing devices, double-pendulum anti-dancing devices, centralized anti-vibration hammers, spacers, etc. Among them, spacers are a widely used transmission line anti-dancing device because of their advantages such as high tensile strength, light weight, and resistance to pollution flashover. However, ordinary spacers are prone to adverse deformation, lack of energy dissipation capacity, and prone to fatigue, which may lead to damage to connecting hardware. At the same time, the galloping of transmission lines usually lasts for a long time. Although ordinary spacers can control the interval between conductors of different phases to a certain extent and suppress discharge between conductors, they cannot quickly calm the galloping of transmission lines due to their low damping, which will cause continuous impact on conductors, transmission towers, etc., affecting the safe operation of the line. Summary of the invention

[0004] In view of the above-mentioned problems existing in the existing high-damping viscoelastic transmission line anti-dancing vibration reduction device, the present invention is proposed.

[0005] Therefore, the present invention provides a high-damping viscoelastic transmission line anti-dancing vibration reduction device, the purpose of which is to: the existing technology has the problems of easy adverse deformation, lack of energy dissipation capacity, and easy fatigue leading to damage of connecting hardware.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high damping viscoelastic transmission line anti-dancing vibration reduction device, comprising a mounting unit, including two sets of end plates, and the two sets of end plates are arranged in a mirror image;

[0007] The damping unit comprises an outer cylinder, the outer cylinder is arranged between two groups of end plates, a circular plate is arranged at the other end of the outer cylinder, a circular hole is arranged on the circular plate, a pressure rod is arranged in the circular hole, a cylindrical body wrapping the pressure rod outside the circular plate, and the pressure rod is movably arranged in the outer cylinder.

[0008] As a preferred solution of the high-damping viscoelastic transmission line anti-dancing vibration reduction device described in the present invention, the end plate includes a hardware fitting, two groups of the hardware fittings are respectively hinged on the inner sides of the two groups of end plates, an insulator is arranged on the outer wall of the hardware fitting, a flange is arranged on the inner side of the hardware fitting, and one side of the outer tube is bolted to the flange located on one side of the hardware fitting.

[0009] As a preferred solution of the high-damping viscoelastic transmission line anti-dancing vibration reduction device described in the present invention, the outer cylinder includes a groove 1, a groove 1 is opened on the inner wall of the outer cylinder, a viscoelastic block 1 is arranged in the groove 1, a protrusion is arranged at the bottom of the inner wall of the outer cylinder, a groove 2 is arranged on the surface of one side of the circular plate, and a viscoelastic block 2 is arranged in the groove 2.

[0010] As a preferred embodiment of the high damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention, the viscoelastic block 1 and the viscoelastic block 2 are both made by high temperature and high pressure vulcanization, and are both cylindrical with a through hole in the middle and a hemispherical protrusion at one end. The diameter of the through hole in the middle of the viscoelastic block 2 is 3-5 mm larger than the diameter of the pressure rod.

[0011] The pressure rod is slidably connected in the middle through hole of the second viscoelastic block, and a cylindrical body wrapping the pressure rod is arranged on the outer side of the circular plate, which greatly reduces the vertical deviation perpendicular to the moving direction that may occur when the pressure rod moves.

[0012] As a preferred solution of the high-damping viscoelastic transmission line anti-dancing vibration reduction device described in the present invention, a gap of about 5 to 10 mm is left between the outer walls of the viscoelastic block 1 and the viscoelastic block 2 and the inner wall of the outer tube, so as to fully ensure the deformation of the viscoelastic block 1 and the viscoelastic block 2.

[0013] As a preferred solution of the high-damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention, the pressure rod includes a connecting block, the connecting block is arranged at one end of the pressure rod, and the connecting block is cylindrical.

[0014] As a preferred solution of the high-damping viscoelastic transmission line anti-dancing vibration reduction device described in the present invention, the springs arranged on both sides of the connecting block are fixedly connected to the circular plates and the protrusions at the bottom of the inner wall of the outer cylinder on both sides, and the springs on both sides and the connecting block are only in contact but not connected.

[0015] As a preferred solution of the high damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention, the other end of the pressure rod passes through the hole in the middle of the circular plate and is connected to the disc, and the disc is connected to the flange on the other side.

[0016] As a preferred solution of the high damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention, the other end of the pressure rod passes through the hole in the middle of the circular plate and is connected to the disc, and the disc is connected to the flange on the other side.

[0017] The beneficial effects of this device are as follows: when the transmission line dances along the axial direction of the device, the springs and viscoelastic blocks inside it can consume the dancing energy through extrusion deformation, thereby reducing the dancing of the transmission line, controlling the phase line to maintain a safe gap, and improving the safety of the transmission line. Inside the outer shell, it is mainly the spring that participates in the deformation. Only when the vibration amplitude is large will the viscoelastic block participate in the work, and the spring can also play a resetting role.

[0018] Another object of the present invention is to provide a method for using a high damping viscoelastic transmission line to prevent vibration and reduce dancing, wherein: when the wind speed is low, the pressure rod vibrates slightly relative to the outer cylinder, the connecting block and the viscoelastic block 1 and the viscoelastic block 2 do not contact, and only the spring provides elastic restoring force due to deformation;

[0019] When the wind speed is medium, the compression rod vibrates with medium amplitude relative to the outer cylinder, and the connecting block contacts with the viscoelastic block 1 and the viscoelastic block 2. At this time, not only the spring provides elastic restoring force, but also the viscoelastic block 1 and the viscoelastic block 2 can be deformed freely under pressure, providing damping force and reducing the galloping of the transmission line.

[0020] When the wind speed is high, the compression rod vibrates with a large amplitude relative to the outer cylinder, and the connecting block contacts with the viscoelastic block 1 and the viscoelastic block 2. The viscoelastic block 1 and the viscoelastic block 2 expand radially significantly when subjected to axial pressure and contact with the outer cylinder and the spring part. At this time, the viscoelastic block 1 and the viscoelastic block 2 provide a large damping force because they are partially constrained.

[0021] When the transmission line encounters extreme working conditions such as ice shedding, the pressure rod vibrates extremely significantly relative to the outer cylinder. Viscoelastic blocks 1 and 2 expand radially when subjected to axial pressure and come into complete contact with the outer cylinder and the spring. At this time, viscoelastic blocks 1 and 2 are in an incompressible state under the three-way constraints of the pressure rod, outer cylinder and spring, providing the maximum compressive reaction force. The damping unit exhibits rigid body properties, preventing the line from further dancing.

[0022] The beneficial effects of the present invention are as follows: when the vibration amplitude is particularly large, the viscoelastic block will expand radially due to the relatively large radial extrusion, and then contact the inner wall of the outer cylinder and be constrained, providing a greater damping force and compressive reaction force, thereby ensuring the overall stability of the device and preventing the wire from further dancing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1It is a schematic diagram of the overall structure of the high-damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention.

[0025] Figure 2 It is a schematic diagram of the partial structure of the high-damping viscoelastic transmission line anti-dancing vibration reduction device of the present invention. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a high-damping viscoelastic transmission line anti-dancing vibration reduction device, including two groups of end plates 101, the two groups of end plates 101 are symmetrically arranged, and are both installed on the transmission line ends by bolts. The hardware 101a is hinged on the inner side of the end plate 101 and is connected to the insulator 101b, connecting the end plate 101 and the insulator 101b to transmit force and bear load. The hardware 101a serves as a connecting component to ensure the mechanical stability and electrical insulation of the device. The insulator 101b provides electrical insulation to prevent current leakage.

[0031] Furthermore, the inner sides of the two sets of hardware 101a are respectively connected with the outer cylinder 201 and the disc 204c by threads through the flange 101c. The outer cylinder 201 serves as the outer shell of the device, protects the internal components, provides structural protection, reduces the impact of the environment on the internal components, and prolongs the service life. The other end of the outer cylinder 201 is provided with a circular plate 202, which is connected to the pressure rod 204. The circular plate 202 limits and fixes the pressure rod 204 through the circular hole 203 to ensure that the pressure rod 204 can effectively transmit force. The outer side of the circular plate 202 is provided with a cylindrical body 205 that wraps the pressure rod 204, which greatly reduces the vertical deviation perpendicular to the moving direction that may occur when the pressure rod 204 moves. The other end of the pressure rod 204 is fixedly connected to the disc 204c.

[0032] In addition, a disc-shaped groove 201a is provided at the bottom of the inner wall of the outer cylinder 201, and a matching viscoelastic block 201b is adhered in the groove 201a by adhesive, ensuring that the viscoelastic block 201b can work stably and will not fall off when subjected to force. A ring-shaped groove 202a is provided on one side surface of the circular plate 202, and a matching viscoelastic block 202b is adhered in the groove 202a by adhesive.

[0033] Among them, the viscoelastic block 1 201b and the viscoelastic block 2 202b are both made through high-temperature and high-pressure vulcanization. The high-temperature and high-pressure vulcanization process can enhance the durability and anti-aging performance of the viscoelastic block 1 201b and the viscoelastic block 2 202b. The main function of the viscoelastic block 1 201b and the viscoelastic block 2 202b is to dissipate vibration energy through their own deformation when the transmission line dances, thereby reducing the vibration amplitude of the transmission line.

[0034] Both the viscoelastic block 1 201b and the viscoelastic block 2 202b are cylindrical in shape with a through hole in the middle and a hemispherical protrusion at one end. The diameter of the middle through hole is 3-5 mm larger than the diameter of the pressure rod 204. The pressure rod 204 passes through the middle through hole of the viscoelastic block 202b and is movably connected to the inner wall of the outer cylinder 201. A connecting block 204a is fixedly installed on one side of the pressure rod 204. The two sides of the connecting block 204a are respectively fixedly connected by springs 204b and protrusions at the bottom of the inner wall of the outer cylinder 201. The springs 204b and the connecting block 204a on both sides are only in contact but not connected. The spring 204b can provide a restoring force for the pressure rod 204. When the pressure rod 204 is displaced due to force, the spring 204b can restore the pressure rod 204 to its initial position, thereby maintaining the stability and continuous working ability of the device. The combined use of the spring 204b and the viscoelastic material block can increase the damping effect of the entire device. The elastic deformation of the spring 204b and the viscous deformation of the viscoelastic block 1 201b and the viscoelastic block 2 202b work together to more effectively consume vibration energy, and the spring 204b can increase the response speed of the device to vibration. When the transmission line vibrates, the spring 204b can respond quickly and transmit force, so that the viscoelastic material block enters the working state in time.

[0035] Example 2, reference Figure 1 and Figure 2 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that it includes a viscoelastic block 1 201b and a viscoelastic block 202b. The viscoelastic block 1 201b and the viscoelastic block 202b are key energy-consuming components in the device. They are subjected to high-temperature and high-pressure vulcanization treatment to form a cross-linked network structure, giving the material excellent viscoelastic properties. The viscoelastic block 1 201b and the viscoelastic block 2 202b deform when subjected to force to dissipate vibration energy.

[0036] Furthermore, the pressure rod 204 passes through the middle through hole of the second viscoelastic block 202b and is connected to the connecting block 204a. The function of the pressure rod 204 is to transmit force when the transmission line dances, so that the viscoelastic block 1 201b and the viscoelastic block 202b are deformed. The spring 204b is installed on both sides of the connecting block 204a and is connected to one side of the circular plate 202 and the protrusion at the bottom of the inner wall of the outer cylinder 201. The spring 204b and the connecting block 204a are only in contact but not connected. The spring 204b provides a restoring force, so that the pressure rod 204 and the viscoelastic block 1 201b and the viscoelastic block 202b can respond to vibration quickly and return to the initial position after vibration.

[0037] Among them, the viscoelasticity of the viscoelastic block and the restoring force of the pressure rod 204 work together to provide an efficient energy dissipation mechanism, reducing the vibration amplitude of the transmission line. The use of spring 204b increases the damping effect of the device and improves the response speed to vibration; and the design of a hemispherical protrusion at one end of the viscoelastic material block enables the viscoelastic material block to enter the working state more quickly. This combination improves the overall vibration reduction performance of the device, helps to control the dancing of the transmission line, and ensures the safe and stable operation of the power grid.

[0038] When the transmission line dances due to wind load or ice shedding load, the movement is transmitted to the end plate 101 through the hardware 101a and the insulator 101b, and finally to the compression rod 204.

[0039] The pressure rod 204 acts as a force transmission medium, transmitting the force generated by the vibration of the transmission line to the viscoelastic block 1 201b and the viscoelastic block 2 202b. At this time, the force applied to the pressure rod 204 causes it to apply pressure to the spring 204b and the viscoelastic block 1 201b on one side through the connecting block 204a in the outer cylinder 201, and to apply tension to the spring 204d and the viscoelastic block 2 202b on the other side.

[0040] The viscoelastic block 1 201b and the viscoelastic block 2 202b will deform when subjected to pressure from the pressure rod 204. The deformation of the viscoelastic blocks is based on their viscoelastic properties, that is, they have both elastic and viscous components. The elastic component causes the material to deform when subjected to force, while the viscous component consumes energy when the material deforms.

[0041] During the deformation process, the viscoelastic block 1 201b and the viscoelastic block 2 202b store a portion of energy and resist further deformation to a certain extent.

[0042] As the viscoelastic block 1 201b and the viscoelastic block 2 202b are deformed, the springs 204b and 204d on both sides of the connecting block 204a are compressed or stretched. The spring 204b provides a restoring force proportional to the deformation according to Hooke's law, that is, F=-kx, where F is the spring 204b force, k is the spring 204b constant, and x is the deformation of the spring 204b.

[0043] This restoring force acts on the compression rod 204, attempting to return the compression rod 204 to its original position.

[0044] During the whole process, the force on the pressure rod 204 increases first, because it needs to overcome the initial resistance of the viscoelastic block 1 201b and the viscoelastic block 2 202b to deform them. Once the viscoelastic block 1 201b and the viscoelastic block 2 202b begin to deform, the force on the pressure rod 204 will increase due to the elastic resistance of the viscoelastic block 1 201b and the viscoelastic block 2 202b.

[0045] When the dancing force of the transmission line decreases or disappears, the restoring force of the spring 204b begins to dominate, pushing the pressure rod 204 back to its initial position. In this process, the potential energy stored in the spring 204b is released and converted into kinetic energy, pushing the pressure rod 204 and the viscoelastic block to reset. During the recovery process, the viscoelastic block 1 201b and the viscoelastic block 2 202b will further dissipate a portion of energy due to their viscous components, and this portion of energy is usually dissipated in the form of heat energy.

[0046] With the reset of the pressure rod 204, the viscoelastic block 1 201b and the viscoelastic block 2 202b, the device successfully converts the vibration energy of the transmission line into heat energy and dissipates it, thereby reducing the vibration amplitude of the transmission line and achieving the purpose of vibration reduction.

[0047] During the whole process, the change of force is the result of the initial impact caused by the galloping of the transmission line, the viscoelastic resistance of the viscoelastic block 1 201b and the viscoelastic block 2 202b, and the restoring force of the spring 204b. This design utilizes the viscoelasticity of the viscoelastic block 1 201b and the viscoelastic block 2 202b and the elasticity of the spring 204b, effectively dissipates the vibration energy, reduces the galloping of the transmission line, and improves the stability and safety of the power system.

[0048] The remaining structures are the same as those of Example 1.

[0049] Example 3, reference Figure 1 and Figure 2, which is the third embodiment of the present invention, and this embodiment is different from the second embodiment in that: it provides a method of use, including when the wind speed is low, the pressure rod 204 vibrates slightly relative to the outer cylinder 201, the connecting block 204a and the viscoelastic block 1 201b and the viscoelastic block 2 202b are not in contact, and only the spring 204b provides elastic restoring force due to deformation;

[0050] When the wind speed is medium, the pressure rod 204 vibrates with medium amplitude relative to the outer cylinder 201, and the connecting block 204a contacts the viscoelastic block 1 201b and the viscoelastic block 2 202b. At this time, not only the spring 204b provides elastic restoring force, but also the viscoelastic block 1 201b and the viscoelastic block 2 202b can be deformed freely under pressure, providing damping force to reduce the dancing of the transmission line;

[0051] When the wind speed is high, the compression rod 204 vibrates with a large amplitude relative to the outer cylinder 201, and the connecting block 204a contacts the viscoelastic block 1 201b and the viscoelastic block 2 202b. The viscoelastic block 1 201b and the viscoelastic block 2 202b significantly expand in the radial direction when subjected to axial pressure, and thus contact the outer cylinder 201 and the spring 204b partially. At this time, the viscoelastic block 1 201b and the viscoelastic block 2 202b provide a large damping force because they are partially constrained.

[0052] When the transmission line encounters extreme working conditions such as ice shedding, the pressure rod 204 vibrates extremely significantly relative to the outer cylinder 201, and the viscoelastic block 1 201b and the viscoelastic block 202b completely contact the outer cylinder 201 and the spring 204b due to the radial expansion when axially compressed. At this time, the viscoelastic block 1 201b and the viscoelastic block 202b are in an incompressible state under the three-way constraints of the pressure rod 204, the outer cylinder 201 and the spring 204b, providing the maximum compressive reaction force, and the damping unit 200 exhibits rigid body properties to prevent the line from further dancing.

[0053] The remaining structure is the same as that of Example 2.

[0054] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible, installation arrangements, use of materials, changes in color, orientation, etc., without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to a variety of modifications that still fall within the scope of the appended claims.

[0055] Additionally, in an effort to provide a concise description of example embodiments, all features of an actual implementation may not be described.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high damping viscoelastic transmission line anti-dancing vibration reduction device, characterized in that: include, The mounting unit (100) comprises two sets of end plates (101), wherein the two sets of end plates (101) are arranged in a mirror image; The damping unit (200) comprises an outer cylinder (201), the outer cylinder (201) being arranged between two groups of end plates (101), a circular plate (202) being arranged at the other end of the outer cylinder (201), a circular hole (203) being arranged on the circular plate (202), a pressure rod (204) being arranged in the circular hole (203), a cylindrical body (205) wrapping the pressure rod (204) on the outer side of the circular plate (202), and the pressure rod (204) being movably arranged in the outer cylinder (201).

2. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 1 is characterized in that: The end plate (101) comprises a hardware (101a), two groups of the hardware (101a) respectively hinged on the inner sides of the two groups of end plates (101), an insulator (101b) arranged on the outer wall of the hardware (101a), a flange (101c) arranged on the inner side of the hardware (101a), and one side of the outer cylinder (201) is bolted to the flange (101c) located on one side of the hardware (101a).

3. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 2 is characterized in that: The outer cylinder (201) comprises a groove 1 (201a), the groove 1 (201a) is opened on the inner wall of the outer cylinder (201), a viscoelastic block 1 (201b) is arranged in the groove 1 (201a), and a protrusion (201c) is arranged at the bottom of the inner wall of the outer cylinder (201); A second groove (202a) is arranged on a surface of one side of the circular plate (202), and a second viscoelastic block (202b) is arranged in the second groove (202a).

4. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 3 is characterized in that: The viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) are both made by high temperature and high pressure vulcanization, and are both cylindrical in shape with a through hole in the middle and a hemispherical protrusion at one end. The diameter of the through hole in the middle of the viscoelastic block 2 (202b) is 3-5 mm larger than the diameter of the pressure rod (204); The pressure rod (204) is slidably connected in the middle through hole of the second viscoelastic block (202b), and a cylindrical body (205) is provided on the outer side of the circular plate (202) to wrap the pressure rod (204), thereby greatly reducing the vertical deviation perpendicular to the moving direction that may occur when the pressure rod (204) moves.

5. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 4 is characterized in that: A gap of about 5 to 10 mm is left between the outer walls of the viscoelastic block 1 (201b) and the inner wall of the outer cylinder (201), respectively, to fully ensure the deformation of the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b).

6. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 1 is characterized in that: The pressure rod (204) comprises a connection block (204a), the connection block (204a) is arranged at one end of the pressure rod (204), and the connection block (204a) is cylindrical.

7. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 6 is characterized in that: The springs (204b) disposed on both sides of the connecting block (204a) are respectively fixedly connected to the circular plate (202) and the protrusions (201c) at the bottom of the inner wall of the outer cylinder (201), and the springs (204b) on both sides are only in contact with the connecting block (204a) but not connected.

8. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 7 is characterized in that: The other end of the pressure rod (204) passes through the hole in the middle of the circular plate (202) and is connected to the circular disc (204c), and the circular disc (204c) is connected to the flange (101c) located on the other side.

9. The high damping viscoelastic transmission line anti-dancing vibration reduction device according to claim 8, characterized in that: The other end of the pressure rod (204) passes through the hole in the middle of the circular plate (202) and is connected to the circular disc (204c), and the circular disc (204c) is connected to the flange (101c) located on the other side.

10. A high damping viscoelastic transmission line anti-dancing and vibration reduction working method, characterized in that: Proper design can achieve: When the wind speed is low, the compression rod (204) vibrates slightly relative to the outer cylinder (201), the connection block (204a) and the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) are not in contact, and only the spring (204b) provides elastic restoring force due to deformation; When the wind speed is medium, the pressure rod (204) vibrates with medium amplitude relative to the outer cylinder (201), and the connecting block (204a) contacts the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b). At this time, not only the spring (204b) provides elastic restoring force, but also the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) can be deformed freely when under pressure, providing damping force and reducing the dancing of the transmission line; When the wind speed is high, the compression rod (204) vibrates relatively greatly relative to the outer cylinder (201), the connection block (204a) contacts the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b), and the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) significantly expand in the radial direction when subjected to axial pressure, and thus partially contact the outer cylinder (201) and the spring (204b). At this time, the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) provide a relatively large damping force because they are partially constrained; When the transmission line is in an extreme working condition of ice shedding, the pressure rod (204) vibrates extremely greatly relative to the outer cylinder (201), and the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) completely contact the outer cylinder (201) and the spring (204b) due to the radial expansion when axially compressed. At this time, the viscoelastic block 1 (201b) and the viscoelastic block 2 (202b) are in an incompressible state under the three-way constraints of the pressure rod (204), the outer cylinder (201) and the spring (204b), providing the maximum compressive reaction force, and the damping unit (200) presents a rigid body property, preventing the line from further dancing.

Images