Power transmission line cross arm and insulator multistage vibration attenuation and energy consumption connecting device

Abstract

The invention belongs to the technical field of power transmission line safety protection, and particularly relates to a power transmission line cross arm and insulator multistage vibration reduction and energy consumption connecting device. Comprising a cross arm angle steel reinforcing device, a rotary damper and a damping rod, the rotary damper comprises a rotor outer shell and a rotor inner shell, the rotor inner shell is fixedly connected with the cross arm angle steel reinforcing device, and the rotor outer shell is rotationally connected with the rotor inner shell; a first rotor baffle is arranged on the inner wall of the rotor shell, the closed structure is divided by the first rotor baffle, and a first oil passing hole is formed in the first rotor baffle; when the damping rod vibrates along with the wire, the rotor outer shell is driven to rotate relative to the rotor inner shell, hydraulic oil is driven to pass through the first oil passing hole, and vibration reduction is achieved. According to the invention, the structural complexity is reduced, the maintenance cost is reduced, the single energy consumption form is improved, and the energy consumption effect is good.

Description

Technical Field

[0001] This invention belongs to the field of power transmission line safety protection technology, and in particular, it is a multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators. Background Technology

[0002] With the rapid development of ultra-high voltage power transmission technology and the continuous increase in the demand for power grid capacity, the stability and safety of transmission lines are facing higher requirements. As a key load-bearing component of the transmission tower, the crossarm undertakes the core task of supporting the insulator string and conductor. The reliability of the connection between the crossarm and the insulator is directly related to the vibration resistance and long-term operational safety of the transmission line.

[0003] However, under dynamic loads such as strong winds, icing, and earthquakes, the connection between the crossarm and the insulator is prone to stress concentration due to the accumulation of vibration energy, leading to structural fatigue damage, bolt loosening, or even breakage, thus threatening the overall stability of the line. Furthermore, traditional connection devices often use rigid angle steel reinforcement combined with simple damping elements. While this can improve local load-bearing capacity, it is difficult to effectively dissipate multi-directional vibration energy. Especially when dealing with complex conditions such as conductor galloping and wind-induced oscillations, it suffers from a single energy dissipation mechanism and insufficient adaptability.

[0004] In existing technologies, the connection structure between the crossarm angle steel and the insulator is usually reinforced by increasing the thickness of the angle steel or by adding supporting components. While such methods can improve the static load-bearing capacity in the short term, they neglect the energy dissipation requirements under dynamic loads. For example, angle steel reinforcement devices fixed with screws or welding are prone to weld cracking or bolt slippage due to stress concentration under frequent vibration, and lack the ability to dissipate vibration energy in stages, leading to accelerated accumulation of structural damage.

[0005] In addition, some studies focus on vibration reduction based on the structure of the crossarm. For example, Chinese utility model patent CN222184326U, entitled "A Vibration-Reducing Composite Crossarm," includes a pair of sleeves with a fixing component between them. A vibration-damping mounting component is positioned between the crossarm and the sleeves. The vibration-damping mounting component includes an outer groove containing a pair of round rods. An adjusting frame is fitted onto the outside of the round rods, and a sliding block is movably fitted onto the outside of the round rods. A first spring is fitted onto both ends of the round rods. This technical solution solves the problem that current installation methods require significant operation time each time the crossarm is replaced, and prolonged operation can cause substantial economic losses to the region. Furthermore, the slight wind vibration of the transmission line conductors acts on the composite crossarm through the insulator string. Since the composite crossarm lacks vibration reduction capabilities, it is highly susceptible to fatigue failure due to prolonged exposure to this high-frequency, low-amplitude external force, reducing its service life and operational years.

[0006] And Chinese utility model patent with publication number CN115425604A, entitled "An Adjustable Vibration-Damping Power Crossarm," includes a transmission pole and multiple pairs of crossarms. Multiple sliding seats are fitted onto the transmission pole, and elastic rotation locking mechanisms are symmetrically installed on the sliding seats. The top of the outer side of the U-shaped base rotatably mounted in the elastic rotation locking mechanism is connected to the crossarm. The crossarm drives the elastic rotation locking mechanism to elastically compress the two radial sides of the transmission pole. A locking mechanism that compresses the two sides of the transmission pole is symmetrically installed on the sliding seats perpendicular to the crossarm. A balancing slide for balancing the rotation of the U-shaped bases on both sides is symmetrically installed on the sliding seats above the locking mechanism. Simultaneously, upper and lower elastic buffers for buffering and preventing slippage are filled between the sliding seats and the transmission pole, respectively. This structure achieves self-locking installation using cable gravity while simultaneously achieving vibration damping. The symmetrical design also counteracts the impact of crossarm vibration on the transmission pole.

[0007] Technical solutions that rely on improvements to the crossarm structure to achieve vibration reduction can suppress conductor galloping to a certain extent, but their suppression effect is limited for complex multi-directional vibrations.

[0008] In addition, some studies have added dampers to utilize their damping effect for energy dissipation. For example, Chinese invention patent CN107093881A, entitled "A Damping Device for Suppressing Wind Deflection of Transmission Line Insulators," features a cylinder, bidirectional pistons, springs, hinges, a protective sleeve, and an insulating damping medium. The bidirectional pistons, spaced at intervals, are placed within the cylinder and slide within it. The pistons are connected by springs spaced at intervals. A hinge is located at the piston rod end of the bidirectional pistons. The cylinder is filled with the insulating damping medium, and damping holes are provided on the pistons to allow the medium to flow. The damping device is connected to the insulators and crossarms via the hinge at the piston rod end. It has a simple structure, is easy to install and maintain, has high strength, high elastic modulus, good vibration damping performance, resistance to high and low temperatures, corrosion resistance, good insulation performance, and a long service life. When used, it is installed between the insulators and crossarms of the transmission line, effectively absorbing the vibration impact of strong winds on the insulators, preventing wind-induced flashover, and ensuring the safe and stable operation of the transmission line. Furthermore, it is applicable to the connection of traditional crossarms and insulators.

[0009] However, the aforementioned existing technologies require strengthening the structure of the transmission tower; otherwise, the connection between the transmission tower and the vibration damping device will become a stress concentration point, which will introduce new structural improvements or structural weaknesses.

[0010] In addition, some studies directly add vibration damping devices between the crossarm and the insulator. For example, Chinese utility model patent CN223218804U, entitled "A Vibration Damping and Suppression Device for Connecting Transmission Towers and Insulators," includes a friction damping box, friction damping plates, connecting hooks, first mounting hooks, second mounting hooks, multiple springs, viscous dampers, universal supports, hook supports, and mounting supports. The friction damping box has a mounting cavity and a clearance opening; the friction damping plates are installed in the mounting cavity; the hook supports are spaced apart from the friction damping plates; the hook supports are equipped with connecting hooks; multiple universal supports are installed on the hook supports; multiple mounting supports are installed on the friction damping plates; multiple viscous dampers are connected in parallel between the universal supports and the mounting supports; multiple first mounting hooks are set on the friction damping plates; multiple second mounting hooks are set on the friction damping box; and springs are hung between the first and second mounting hooks. This device optimizes the structure of the vibration damping and suppression device, resulting in better vibration reduction performance.

[0011] The aforementioned existing technologies can alleviate conductor vibration and have a multi-dimensional composite vibration suppression effect, but they are complex in structure, have high maintenance costs, and their actual performance is not ideal.

[0012] Chinese invention patent CN110284614A, entitled "An Energy-Dissipating Vibration-Reducing Device Connecting a Transmission Tower and an Insulator," includes a metal box with a square opening at the bottom. The metal box contains upper and lower spring-damping layers and a middle sliding interlayer. One end of the spring and damper in the spring-damping layers is embedded in a cylindrical groove of the granular damping water-absorbing layer, and the other end is connected to the sliding interlayer. The sliding interlayer contains a spring-damping region and a granular damping region. A slider connected to the insulator at the bottom is located in the center of the spring-damping region. The metal box is mounted on the transmission tower using bolts and brackets.

[0013] However, the aforementioned existing technologies also have technical problems due to their complex structures and high maintenance costs.

[0014] Therefore, there is an urgent need to design a connection device that integrates reinforcement, multi-level energy dissipation, and adaptive adjustment to balance the load-bearing capacity and vibration control at the connection between the crossarm and the insulator, and to provide long-term protection for the safe operation of UHV transmission lines. Summary of the Invention

[0015] The purpose of this invention is to provide: A multi-stage vibration damping and energy dissipation connection device for crossarms and insulators of transmission lines is proposed to balance the load-bearing capacity enhancement and vibration control at the connection between the crossarm and insulator, thereby solving the technical problems of complex structure and high maintenance cost of existing vibration damping devices at the connection between the crossarm and insulator.

[0016] Terminology Explanation: Unless otherwise defined, all technical terms in this document have the same meanings as commonly understood by one of ordinary skill in the art to which the subject matter of the claims pertains. Unless otherwise stated, all patents, patent inventions, and publications cited in this document are incorporated herein by reference in their entirety. If multiple definitions exist for terms in this document, the definitions in this chapter shall prevail.

[0017] It should be understood that the above brief description and the following detailed description are exemplary and for illustrative purposes only, and do not limit the subject matter of the invention in any way. In this invention, the singular is used in conjunction with the plural unless otherwise specifically stated. It should also be noted that, unless otherwise stated, the use of “or” or “or” means “and / or”. Furthermore, the use of the term “comprising” and other forms such as “including,” “containing,” and “contains” are not limiting.

[0018] The term "fixed connection" as used in this article refers to a connection in which parts or components are fixed without any relative movement. This includes detachable and non-detachable connections. Detachable connections use screws, splines, wedges, etc., to fix parts together. Non-detachable connections mainly refer to welding, riveting, and tenon joints.

[0019] The term "ball joint" as used in this article refers to a mechanical connector used to connect two objects and allow them to move freely in multiple directions.

[0020] The term "meshing" as used in this article refers to a mechanical transmission method in which two mechanical parts transmit power and motion through tooth surface contact.

[0021] The present invention provides a multi-stage vibration reduction and energy dissipation connection device for a transmission line crossarm and insulator, comprising a crossarm angle steel reinforcement device, a rotary damper and a damping rod, wherein the crossarm angle steel reinforcement device is connected to the transmission tower, the damping rod is connected to the insulator, and the rotary damper is connected between the crossarm angle steel reinforcement device and the damping rod. The rotary damper includes a rotor outer shell and a rotor inner shell. The rotor inner shell is fixedly connected to the crossarm angle steel reinforcement device, the rotor outer shell and the rotor inner shell are rotatably connected, and the rotor outer shell is fixedly connected to the damping rod. The rotor outer shell and the rotor inner shell are connected to each other to form a closed structure. The closed structure contains hydraulic oil, and a first rotor baffle is provided on the inner wall of the rotor outer shell. The first rotor baffle divides the closed structure and has a first oil passage hole. When the damping rod vibrates following the conductor, it drives the rotor housing to vibrate synchronously, thereby causing the rotor housing to rotate relative to the rotor inner housing, and causing hydraulic oil to pass through the first oil passage to achieve vibration reduction.

[0022] The crossarm angle steel reinforcement device can adopt existing reinforcement structures, as long as it can reinforce the crossarm structure, reduce fatigue of the crossarm structure, and prevent the bolts on the crossarm from loosening. The crossarm angle steel reinforcement device in this invention is preferably configured as described below.

[0023] The damping rod can also adopt a damping structure from the prior art, which can achieve a damping energy dissipation effect. The damping rod in this invention preferably has the specific structure described below.

[0024] The rotor inner shell and the crossarm angle steel reinforcement device are fixedly connected, and the fixed connection includes: welding connection, adhesive connection, interference fit, riveting, integral molding, etc.; more preferably, welding connection and interference fit are used.

[0025] The rotor outer shell and the rotor inner shell are rotatably connected, and the rotatable connection includes: hinge, bearing connection, snap-fit ​​connection, etc., and is more preferably a bearing connection.

[0026] The rotor housing and the damping rod are fixedly connected, wherein the fixed connection includes: welding connection, adhesive connection, interference fit, riveting, integral molding, etc.; more preferably, integral molding or welding connection is preferred.

[0027] The hydraulic oil is selected from: HL hydraulic oil, HM hydraulic oil, HR hydraulic oil, HV hydraulic oil, HS hydraulic oil, etc., and preferably a hydraulic oil with higher viscosity.

[0028] The shape of the first oil passage can be circular, square, elliptical, polygonal, triangular, etc., with circular being the preferred shape.

[0029] Based on further solutions to the technical problems of the present invention, or simultaneous solutions to multiple technical problems, the preferred solutions in the technical solutions provided by the present invention include: In some embodiments, the rotational damper includes two rotor inner shells and two rotor outer shells, the two rotor inner shells being arranged opposite to each other, and the connecting end of the crossbeam angle steel reinforcement device being embedded between the two rotor inner shells. Two rotor housings are respectively located on the outside of two rotor inner housings, and the two rotor housings are symmetrically arranged with respect to the connecting end of the crossarm angle steel reinforcement device; The rotor inner shell and rotor outer shell located on the left side of the connecting end are connected to each other to form a closed structure; the rotor inner shell and rotor outer shell located on the right side of the connecting end are connected to each other to form a closed structure.

[0030] This technical solution not only solves the technical problems of "complex structure and high maintenance cost", but also further solves the technical problem of "how to improve energy efficiency". The rotary damper includes two inner rotor shells and two outer rotor shells, which form two closed spaces respectively. Moreover, the two closed spaces are symmetrically arranged. When the conductor vibrates or shakes, the hydraulic oil in the two closed spaces can absorb energy.

[0031] In some embodiments, a housing bearing is provided at the center of the inner sidewall of the rotor housing, and a rotating shaft is provided at the center of the inner sidewall of the rotor inner housing. The rotating shaft is inserted into the housing bearing and rotates in cooperation with the housing bearing.

[0032] This technical solution further defines the connection method between the inner rotor shell and the outer rotor shell, achieving a rotational connection through the outer shell bearing. This results in better rotational characteristics and improves the service life of the vibration damping and energy dissipation connection device.

[0033] In some embodiments, a first rotor baffle is provided below the housing bearing, and a second rotor baffle is provided above the rotating shaft, with a second oil passage hole provided on the second rotor baffle; After the inner rotor shell and the outer rotor shell are connected to each other, the rotating shaft is inserted into the outer shell bearing, so that the first rotor baffle and the second rotor baffle divide the closed structure into two independent spaces.

[0034] This technical solution can further improve energy efficiency. Because rotor baffles are installed on both the inner and outer rotor housings, hydraulic oil flows through the oil passages on the rotor baffles, causing the hydraulic oil temperature to rise and achieving energy conversion, thus achieving the purpose of energy consumption. The rotor baffles on the inner rotor housing promote the flow of hydraulic oil and increase the rate at which the hydraulic oil temperature rises, thereby improving energy efficiency.

[0035] In some embodiments, both the first rotor baffle and the second rotor baffle are made of shape memory alloy.

[0036] This technical solution limits the material of the rotor baffle, using a lightweight material to reduce inertia and achieve a more significant vibration reduction effect.

[0037] In some embodiments, a first adjusting block is further provided on the inner sidewall of the rotor housing.

[0038] In some embodiments, the first adjustment block is made of shape memory alloy.

[0039] In some embodiments, the number of the first adjustment blocks is two or more.

[0040] In some embodiments, the first adjusting block has a square or circular cross-section.

[0041] The above-mentioned preferred technical solution defines the first adjusting block. The addition of the first adjusting block increases the resistance of the hydraulic oil, disrupts the flow direction of the hydraulic oil, further improves the energy conversion effect, and improves the vibration reduction efficiency.

[0042] In some embodiments, a second adjusting block is further provided on the inner sidewall of the rotor inner shell.

[0043] In some embodiments, the second adjustment block is made of shape memory alloy.

[0044] In some embodiments, the number of the second adjustment blocks is two or more.

[0045] In some embodiments, the cross-section of the second adjusting block is square or circular.

[0046] The above-mentioned preferred technical solution defines a second adjusting block. The addition of the second adjusting block increases the resistance of the hydraulic oil, disrupts the flow direction of the hydraulic oil, further improves the energy conversion effect, and enhances the vibration reduction efficiency.

[0047] In some embodiments, the rotor inner shell is cylindrical, and the rotor inner shell includes a circular base plate with an annulus at the edge of the base plate. A rotating shaft, a second rotor baffle, and a second adjusting block are disposed on the inner side of the base plate.

[0048] In some embodiments, the first adjusting block and the second adjusting block are respectively disposed on both sides of the second rotor baffle.

[0049] This technical solution defines the relative layout positions of the first and second adjusting blocks to balance the resistance to hydraulic oil flow.

[0050] In some embodiments, the damping rod includes a damping rod sleeve, one end of which is connected to the rotary damper, and the other end of which is provided with a force transmission rod that extends into the interior of the damping rod sleeve from the other end of the damping rod sleeve. The portion of the force transmission rod located inside the damping rod sleeve connects the conductor plate and the baffle. The damping rod sleeve is equipped with a magnetic energy dissipation component, a first energy dissipation component, and a second energy dissipation component. The conductor plate cooperates with the magnetic energy dissipation component to dissipate energy by cutting magnetic field lines. The baffle cooperates with the first energy dissipation component and the second energy dissipation component to dissipate energy.

[0051] This technical solution defines the internal structure of the damping rod, achieves multi-stage energy dissipation through multi-stage energy dissipation components, further improves the vibration reduction effect, and can control the multi-directional vibration of the conductor.

[0052] In some embodiments, the magnetic energy dissipation component includes two support plates, each with a permanent magnet disposed on an opposite side, and a conductor plate disposed between the two support plates; the permanent magnets on the two support plates have opposite magnetic poles.

[0053] This technical solution converts vibrational kinetic energy into electrical energy through the principle of electromagnetic induction, and then converts the electrical energy into heat energy through a conductor plate and dissipates it. The structure is simple and novel, reducing structural complexity.

[0054] In some embodiments, a plurality of permanent magnets are disposed on the support plate, and the plurality of permanent magnets are arranged in an array on one side of the support plate.

[0055] In some embodiments, the first energy-dissipating component is a front spring. The left end of the bearing plate is connected to the left inner wall of the damping rod sleeve through the front spring. Guide rails are provided on the inner side walls of the damping rod sleeves on both sides of the bearing plate. The two sides of the bearing plate are embedded in the corresponding guide rails so that the bearing plate can move along the guide rails.

[0056] In some embodiments, the first energy-consuming component may also be a shape memory alloy plate, and the left end of the support plate is connected to the left inner wall of the damping rod sleeve through the shape memory alloy plate.

[0057] Shape memory alloys have excellent plasticity, and compression or elongation can be achieved through the plasticity of shape memory alloy plates, thereby achieving the purpose of energy dissipation.

[0058] In some embodiments, the second energy-dissipating component is a rear spring, one end of the force transmission rod extending into the interior of the damping rod sleeve is connected to the baffle, the baffle is connected to the conductor plate, and the baffle is connected to the inner wall of the right end of the damping rod sleeve through the rear spring.

[0059] This technical solution further solves the technical problem of multi-stage vibration reduction. When the conductor vibrates or sways, the force transmission rod moves back and forth in the damping rod sleeve, and then drives the rear spring to compress and extend through the transmission of the baffle, thereby achieving vibration reduction.

[0060] In some embodiments, a transmission assembly is provided on the outer side of the support plate, and the baffle is fixedly connected to the steel plate, the steel plate being arranged parallel to the support plate; The other end of the steel plate passes through the left end of the damping rod sleeve and can reciprocate relative to the left sidewall of the damping rod sleeve; the steel plate connects to the transmission assembly and transmits the movement of the baffle to the support plate.

[0061] In some embodiments, the transmission component is a rack and pinion mechanism.

[0062] In some embodiments, the gear and rack mechanism includes a first rack, a gear, and a second rack. The first rack is disposed on one side of the steel plate relative to the bearing plate, and the second rack is disposed on one side of the bearing plate relative to the steel plate. A gear is disposed between the first rack and the second rack, and the first rack meshes with the gear, and the second rack meshes with the gear. The gear is fixedly installed inside the damping rod sleeve.

[0063] By setting up a gear and rack mechanism, the movement of the force transmission rod can be transmitted in the opposite direction to the bearing plate, causing the permanent magnet and the conductor plate on the bearing plate to move in opposite directions, thereby increasing the speed of magnetic energy conversion into electrical energy and improving the energy dissipation effect.

[0064] In some embodiments, the end of the force transmission rod extending out of the damping rod sleeve has a connecting hole.

[0065] In some embodiments, the crossarm angle steel reinforcement device includes a crossarm angle steel, an outer reinforcement angle steel, and an inner reinforcement angle steel. The crossarm angle steel is disposed between the outer reinforcement angle steel and the inner reinforcement angle steel, and the right-angle ends of the outer reinforcement angle steel extend beyond the crossarm angle steel, and the right-angle ends of the inner reinforcement angle steel extend beyond the crossarm angle steel. The right-angle ends of the outer reinforcing angle steel and the right-angle ends of the inner reinforcing angle steel are connected by bolts, thereby securing the crossbeam angle steel between the outer reinforcing angle steel and the inner reinforcing angle steel.

[0066] This technical solution further solves the technical problem of "how to avoid stress concentration at the crossarm angle steel". By adding internal and external reinforcing angle steel, the strength of the crossarm angle steel is enhanced, thereby dispersing stress and avoiding stress concentration; in addition, it can also reduce structural fatigue damage.

[0067] In some embodiments, a reinforcing plate is provided on the inner side of the right angle of the internally reinforced angle steel.

[0068] This technical solution enhances the strength of the internally reinforced angle steel, further avoids fatigue damage, and improves the service life of the device.

[0069] In some embodiments, the lower end of the external reinforcing angle steel is connected to the stator, and the stator is fixedly connected to the rotor inner shell.

[0070] In some embodiments, the end of the stator is arc-shaped, and grooves are provided on both sides of the arc-shaped portion of the stator end. The outer side of the rotor inner shell has a protrusion, which is embedded in the groove and is an interference fit.

[0071] In some embodiments, the ends of the stator are connected to the rotor inner shell by welding.

[0072] Compared with existing technologies, the prefabricated vibration reduction and reinforcement anti-uplift pile based on inertial capacitive damping provided by this invention has the following beneficial effects: (1) The present invention proposes a multi-stage vibration damping and energy dissipation connection device for crossarm and insulator of transmission line. By setting a rotary damper, hydraulic oil and rotor baffle are set between the inner shell and the outer shell of the rotor. Moreover, the inner shell and the outer shell of the rotor are rotatably connected. When the conductor vibrates, the vibration energy is transferred to the outer shell of the rotor. The outer shell of the rotor rotates relative to the inner shell of the rotor. Then the hydraulic oil passes through the oil passage hole on the rotor baffle. The temperature of the hydraulic oil rises, and the vibration energy can be converted into heat energy and dissipated into the air through temperature transfer, thereby achieving energy dissipation and suppressing conductor swaying or vibration, and improving the safety performance of the transmission line.

[0073] (2) The present invention provides a multi-stage vibration damping and energy dissipation connection device for a transmission line crossarm and insulator. Multiple adjustment blocks are set in the rotary damper, including a first adjustment block and a second adjustment block. Both the first adjustment block and the second adjustment block are made of shape memory alloy. When the hydraulic oil flows, the first adjustment block and the second adjustment block will expand as the temperature of the hydraulic oil rises. The expansion process causes the hydraulic oil to move in multiple directions and increases the resistance of the hydraulic oil flow, thereby achieving further energy dissipation and accelerating the energy dissipation speed.

[0074] (3) The present invention provides a multi-stage vibration damping and energy dissipation connection device for crossarm and insulator of transmission line, which sets up a multi-stage energy dissipation component inside the damping rod, including a magnetic energy dissipation component, a first energy dissipation component and a second energy dissipation component, which improves the previous single energy dissipation form, has a good energy dissipation effect, and realizes multi-stage energy dissipation and vibration damping of transmission line.

[0075] (4) The present invention provides a multi-stage vibration damping and energy dissipation connection device for crossarm and insulator of transmission line. Through the combination of rotary damper and damping rod, the damping rod can suppress the swaying or vibration of the conductor in the vertical direction; while the rotary damper can suppress the swaying or swinging of the conductor in the horizontal direction, thereby controlling the vibration and swaying of the transmission line in multiple directions.

[0076] (5) The present invention provides a multi-stage vibration reduction and energy dissipation connection device for crossarm and insulator of transmission line. By setting a magnetic energy dissipation component inside the damping rod, the vibration kinetic energy is converted into electrical energy and dissipated through the electromagnetic induction principle. Combined with the mechanical energy dissipation mechanism of gear rack and spring, a dual energy conversion path is formed, which significantly improves the vibration reduction efficiency and is especially suitable for suppressing high-frequency micro-amplitude vibration.

[0077] (6) The multi-stage vibration reduction and energy dissipation connection device for crossarm and insulator of transmission line provided by the present invention is mostly made of lightweight materials, with simple structure, light weight, obvious vibration reduction effect, and can suppress the vibration and swaying of transmission conductors, and has good economy and applicability.

[0078] (7) The present invention provides a multi-stage vibration damping and energy dissipation connection device for crossarms and insulators of transmission lines, which strengthens the angle steel of the crossarms used in the traditional way, improves the load-bearing capacity, and avoids stress concentration damage.

[0079] (8) Through innovative multi-level energy-consuming structure, application of smart materials and modular design, this invention not only solves the technical problems of traditional connection devices having single energy consumption, high vulnerability, complex structure and high maintenance cost, but also achieves comprehensive improvement in vibration reduction performance, durability and economy, providing a reliable guarantee for the long-term safe operation of UHV transmission lines. Attached Figure Description

[0080] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0081] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the crossbeam angle steel reinforcement structure described in this invention; Figure 3 This is a schematic diagram of the connection between the stator and the rotary damper described in this invention. Figure 4 This is a schematic diagram of the rotor housing of the present invention; Figure 5 This is a schematic diagram of the rotor inner shell of the present invention; Figure 6 This is a schematic diagram of the internal structure of the damping rod described in this invention.

[0082] Explanation of reference numerals in the attached figures: 1. Crossbeam angle steel reinforcement device, 1-1. Angle steel for crossbeams, 1-2. External reinforcement angle steel, 1-3. Internally reinforced angle steel, 1-4. Reinforcing ribs 1-5, Bolts 1-6, Stator 1-7, Groove 2. Rotary damper, 2-1-1, Rotor housing, 2-1-2, Housing bearing, 2-1-3, Bearing bore 2-1-4, First adjusting block, 2-1-5, First rotor baffle, 2-1-6, First oil passage hole, 2-1-7. Hydraulic oil 2-2-1. Rotor inner shell, 2-2-2, Inner shell bearing, 2-2-3, Rotating shaft, 2-2-4, Second Adjusting Block 2-2-5, Second rotor baffle, 2-2-6, Second oil passage hole, 3. Damping rod, 3-1. Damping rod sleeve, 3-2, Force transmission rod, 3-3. Connecting hole 3-4. Steel plate 3-5. Gears 3-6. Gear pre-drilled holes, 3-7, First rack, 3-8. Support plate, 3-9. Baffle 3-10. Rear spring, 3-11, First energy-consuming component, 3-12. Permanent magnet, 3-13. Conductor plate, 3-14. Second rack. Detailed Implementation

[0083] The technical solution of the present invention will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0084] It should be noted that, unless otherwise specifically stated, the relative arrangement and numerical expressions of the components and steps described in these embodiments should not be construed as limiting the scope of the invention.

[0085] The following description of exemplary embodiments is merely illustrative and is not intended to limit the invention or its application or use in any way. Techniques, methods, and apparatus known to those skilled in the art may not be discussed in detail herein, but where applicable, such techniques, methods, and apparatus should be considered part of this specification.

[0086] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0087] For ease of description, the words "up," "down," "left," and "right" appearing in this invention only indicate that they are consistent with the up, down, left, and right directions of the accompanying drawings themselves. They do not limit the structure and are merely for the purpose of facilitating the description of this invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0088] Terminology Explanation: The terms "installation," "connection," "linking," and "fixing" in this invention should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0089] Example 1 This embodiment provides a multi-stage vibration damping and energy dissipation connection device for the crossarm and insulator of a transmission line, such as... Figure 1 As shown, it includes a crossarm angle steel reinforcement device 1, a rotation damper 2, and a damping rod 3. The crossarm angle steel reinforcement device 1 is connected to the transmission tower, the damping rod 3 is connected to the insulator, and the rotation damper 2 is connected between the crossarm angle steel reinforcement device 1 and the damping rod 3. The rotary damper 2 includes a rotor outer shell 2-1-1 and a rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is fixedly connected to the crossarm angle steel reinforcement device 1. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are rotatably connected. The rotor outer shell 2-1-1 is also fixedly connected to the damping rod 3. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are connected to each other to form a closed structure. The closed structure contains hydraulic oil 2-1-7. A first rotor baffle 2-1-5 is provided on the inner wall of the rotor outer shell 2-1-1. The first rotor baffle 2-1-5 divides the closed structure. The first rotor baffle 2-1-5 has a first oil passage hole 2-1-6. When the damping rod 3 vibrates with the conductor, it drives the rotor housing 2-1-1 to vibrate synchronously, thereby causing the rotor housing 2-1-1 to rotate relative to the rotor inner housing 2-2-1, and causing the hydraulic oil 2-1-7 to pass through the first oil passage 2-1-6 to achieve vibration reduction.

[0090] The crossarm angle steel reinforcement device 1 can adopt a reinforcement structure from the prior art, as long as it can reinforce the crossarm structure, reduce fatigue of the crossarm structure, and prevent the bolts on the crossarm from loosening. In this invention, the crossarm angle steel reinforcement device is preferably configured as described below.

[0091] The damping rod 2 can also adopt a damping structure from the prior art, which can achieve the effect of damping and energy dissipation. The damping rod in this invention is preferably the specific structure of the damping rod described below.

[0092] The rotor inner shell 2-2-1 and the crossarm angle steel reinforcement device 1 are fixedly connected. The fixed connection includes: welding connection, adhesive connection, interference fit, riveting, integral molding, etc.; more preferably, welding connection and interference fit are used.

[0093] The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are rotatably connected. The rotatable connection includes: hinge, bearing connection, snap-fit ​​connection, etc., and is more preferably a bearing connection.

[0094] The rotor housing 2-1-1 and the damping rod 3 are fixedly connected, wherein the fixed connection includes: welding connection, adhesive connection, interference fit, riveting, integral molding, etc.; more preferably, integral molding or welding connection is preferred.

[0095] The hydraulic oil is selected from: HL hydraulic oil, HM hydraulic oil, HR hydraulic oil, HV hydraulic oil, HS hydraulic oil, etc., and preferably a hydraulic oil with higher viscosity.

[0096] The shape of the first oil passage 2-1-6 can be circular, square, elliptical, polygonal, triangular, etc., with circular being the preferred shape.

[0097] When the conductor sways, the damping rod 3 sways accordingly, causing the rotor outer shell 2-1-1 to rotate. Since the rotor inner shell 2-2-1 is fixedly connected to the crossarm angle steel reinforcement device 1, the rotor outer shell 2-1-1 rotates relative to the rotor inner shell 2-2-1, thereby forcing the hydraulic oil 2-1-7 in the enclosed space to flow and pass through the first oil passage 2-1-6. Due to the high viscosity of the hydraulic oil, strong fluid friction is generated when passing through the narrow first oil passage 2-1-6. The friction converts mechanical energy into heat energy, causing the hydraulic oil temperature to rise. The heat energy of the hydraulic oil is transferred to the air through heat transfer, realizing the energy conversion and achieving the purpose of energy consumption.

[0098] The energy-consuming structure of this embodiment is simple, which reduces the complexity of the shock absorption device and lowers maintenance costs.

[0099] Example 2 This embodiment provides a multi-stage vibration damping and energy dissipation connection device for the crossarm and insulator of a transmission line, such as... Figure 1 As shown, it includes a crossarm angle steel reinforcement device 1, a rotation damper 2, and a damping rod 3. The crossarm angle steel reinforcement device 1 is connected to the transmission tower, the damping rod 3 is connected to the insulator, and the rotation damper 2 is connected between the crossarm angle steel reinforcement device 1 and the damping rod 3. The rotary damper 2 includes a rotor outer shell 2-1-1 and a rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is fixedly connected to the crossarm angle steel reinforcement device 1. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are rotatably connected. The rotor outer shell 2-1-1 is also fixedly connected to the damping rod 3. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are connected to each other to form a closed structure. The closed structure contains hydraulic oil 2-1-7. A first rotor baffle 2-1-5 is provided on the inner wall of the rotor outer shell 2-1-1. The first rotor baffle 2-1-5 divides the closed structure. The first rotor baffle 2-1-5 has a first oil passage hole 2-1-6. When the damping rod 3 vibrates with the conductor, it drives the rotor housing 2-1-1 to vibrate synchronously, thereby causing the rotor housing 2-1-1 to rotate relative to the rotor inner housing 2-2-1, and causing the hydraulic oil 2-1-7 to pass through the first oil passage 2-1-6 to achieve vibration reduction.

[0100] The crossarm angle steel reinforcement device 1 can adopt a reinforcement structure from the prior art, as long as it can reinforce the crossarm structure, reduce fatigue of the crossarm structure, and prevent the bolts on the crossarm from loosening. In this invention, the crossarm angle steel reinforcement device is preferably configured as described below.

[0101] The damping rod 2 can also adopt a damping structure from the prior art, which can achieve the effect of damping and energy dissipation. The damping rod in this invention is preferably the specific structure of the damping rod described below.

[0102] The rotary damper 2 includes two rotor inner shells 2-2-1 and two rotor outer shells 2-1-1. The two rotor inner shells 2-2-1 are arranged opposite to each other, and the connecting end of the crossbeam angle steel reinforcement device 1 is embedded between the two rotor inner shells 2-2-1. Two rotor outer shells 2-1-1 are respectively arranged on the outside of two rotor inner shells 2-2-1, and the two rotor outer shells 2-1-1 are symmetrically arranged with respect to the connecting end of the crossarm angle steel reinforcement device 1; The rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the left side of the connecting end are connected to each other to form a closed structure; the rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the right side of the connecting end are connected to each other to form a closed structure.

[0103] like Figure 3 As shown, the rotary damper 2 is square and has a slot at one end. The two sides of the slot are symmetrical, specifically, a rotor inner shell 2-2-1 and a rotor outer shell 2-1-1 are respectively set on the two sides of the slot; the two rotor outer shells 2-1-1 are connected as one piece at the end of the rotary damper 2. The slot is located at the position for fixed connection with the crossarm angle steel reinforcement device 1.

[0104] like Figure 4 The diagram shows the structure of rotor housing 2-1-1. One end of rotor housing 2-1-1 is arc-shaped, and the other end is square. One side of rotor housing 2-1-1 with the arc-shaped end face has a cylindrical groove, forming a cylindrical mounting space. A housing bearing 2-1-2 is installed at the center (center) of the inner wall of the cylindrical groove. The housing bearing 2-1-2 can be fixedly connected to the rotor housing 2-1-1 by bonding its outer ring. Below the housing bearing 2-1-2, a first rotor baffle 2-1-5 is installed. The height of the first rotor baffle 2-1-5 protruding from the inner wall of rotor housing 2-1-1 is the same as the depth of the cylindrical groove. Both sides of the first rotor baffle 2-1-5 contact the side wall of the housing bearing 2-1-2 and the inner wall of the rotor housing 2-1-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5, hydraulic oil 2-1-7 must pass through the first oil passage hole 2-1-6.

[0105] Additionally, on one side of the housing bearing 2-1-2 ( Figure 4 On the right side of the image, a first adjusting block 2-1-4 is provided. The number of first adjusting blocks 2-1-4 can be one or more, such as two, three, or four. The first adjusting blocks 2-1-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent first adjusting blocks 2-1-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the first adjusting block 2-1-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0106] The first adjusting block 2-1-4 is made of shape memory alloy. When the hydraulic oil 2-1-7 flows through the first adjusting block 2-1-4, the friction between the hydraulic oil 2-1-7 and the first adjusting block 2-1-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the first adjusting block 2-1-4 expands due to heat, further increasing the flow damping of the hydraulic oil 2-1-7, generating a large amount of energy, and realizing the rapid consumption of vibration energy.

[0107] like Figure 5 The diagram shows the structure of the rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is generally cylindrical with one flat end being open and the interior being hollow. Specifically, the rotor inner shell 2-2-1 includes a circular base plate with a ring around its edge. The inner side of the base plate is provided with a rotating shaft 2-2-3, a second rotor baffle 2-2-5, and a second adjusting block 2-2-4.

[0108] A rotating shaft 2-2-3 is disposed at the center (center) of the inner sidewall of the rotor inner shell 2-2-1. The rotating shaft 2-2-3 can be integrally formed with the rotor inner shell 2-2-1, or it can be fixedly connected in other ways. In this embodiment, an inner shell bearing 2-2-2 is fixedly disposed on the rotor inner shell 2-2-1, and the inner shell bearing 2-2-2 is interference-fitted with the rotating shaft 2-2-3. In other embodiments, the rotor inner shell 2-2-1 and the rotating shaft 2-2-3 can also be directly welded together.

[0109] The rotating shaft 2-2-3 is inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2 and rotates with the outer shell bearing 2-1-2. Thus, the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are rotatably connected. Additionally, the rotor inner shell 2-2-1 has a short, cylindrical protrusion on the outer surface of the rotating shaft 2-2-3 for fixed connection with the crossarm angle steel reinforcement device 1.

[0110] In order for the rotating shaft 2-2-3 to be inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2, the cylindrical sidewalls of the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are designed to fit together. Specifically, when the rotating shaft 2-2-3 is inserted into the outer shell bearing 2-1-2, the rotor inner shell 2-2-1 is embedded inside the rotor outer shell 2-1-1, that is, the sidewall of the rotor inner shell 2-2-1 overlaps with the inner wall of the cylindrical groove of the rotor outer shell 2-1-1.

[0111] like Figure 5As shown, a second rotor baffle 2-2-5 is provided above the rotating shaft 2-2-3, and a second oil passage hole 2-2-6 is provided on the second rotor baffle 2-2-5. The height of the second rotor baffle 2-2-5 protruding from the inner wall of the rotor inner shell 2-2-1 is the same as the opening depth of the rotor inner shell 2-2-1, and the two sides of the second rotor baffle 2-2-5 are in contact with the side wall of the inner shell bearing 2-2-2 and the inner wall of the rotor inner shell 2-2-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the second rotor baffle 2-2-5, the hydraulic oil 2-1-7 must pass through the second oil passage hole 2-2-6.

[0112] After the inner rotor housing 2-2-1 and the outer rotor housing 2-1-1 are aligned, the rotating shaft 2-2-3 is inserted into the outer housing bearing 2-1-2, causing the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 to divide the enclosed structure into two independent spaces. This separation does not necessarily require a complete seal. When hydraulic oil exchanges between the two spaces, most of the hydraulic oil passes through the first oil passage 2-1-6 and the second oil passage 2-2-6.

[0113] Both the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are made of shape memory alloy.

[0114] In addition, a second adjusting block 2-2-4 is provided on the inner sidewall of the rotor inner shell 2-2-1. The number of second adjusting blocks 2-2-4 can be one or more, such as two, three, or four. The second adjusting blocks 2-2-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent second adjusting blocks 2-2-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the second adjusting block 2-2-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0115] The second adjusting block 2-2-4 is made of shape memory alloy. When hydraulic oil 2-1-7 flows through the second adjusting block 2-2-4, the friction between the hydraulic oil 2-1-7 and the second adjusting block 2-2-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the second adjusting block 2-2-4 expands due to heat, further increasing the flow damping of the hydraulic oil and generating a large amount of energy, thus achieving rapid consumption of vibration energy.

[0116] Furthermore, in a preferred embodiment, the first adjusting block 2-1-4 and the second adjusting block 2-2-4 are respectively disposed on the left and right sides of the second rotor baffle 2-2-5.

[0117] When the conductor vibrates, it drives the rotor housing 2-1-1 to rotate through the damping rod 3. The rotor housing 2-1-1 rotates relative to the rotor inner housing 2-2-1. Therefore, due to the high viscosity of the hydraulic oil 2-1-7 inside the rotary damper 2, it is driven by the rotor housing 2-1-1 and flows. The hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5. When the hydraulic oil 2-1-7 with a certain viscosity passes through the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6, strong fluid friction will be generated. The friction converts mechanical energy into heat energy, causing the hydraulic oil temperature to rise. The heat is dissipated to the outside air through the rotor housing 2-1-1, the rotor inner housing 2-2-1 and other components by heat transfer, realizing the conversion and consumption of energy.

[0118] As the temperature of the hydraulic oil rises, the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are heated, causing the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6 to expand, the opening becomes smaller, the flow damping of the hydraulic oil 2-1-7 increases, further accelerating energy consumption and increasing the energy consumption rate.

[0119] In addition, since the first regulating block 2-1-4 and the second regulating block 2-2-4 are also made of shape memory alloy, after the temperature of the hydraulic oil 2-1-7 rises, the first regulating block 2-1-4 and the second regulating block 2-2-4 also expand and deform, which increases the flow resistance of the hydraulic oil 2-1-7. In addition, it also disrupts the flow direction of the hydraulic oil 2-1-7, further accelerating energy consumption.

[0120] Example 3 This embodiment provides a multi-stage vibration damping and energy dissipation connection device for the crossarm and insulator of a transmission line, such as... Figure 1 As shown, it includes a crossarm angle steel reinforcement device 1, a rotation damper 2, and a damping rod 3. The crossarm angle steel reinforcement device 1 is connected to the transmission tower, the damping rod 3 is connected to the insulator, and the rotation damper 2 is connected between the crossarm angle steel reinforcement device 1 and the damping rod 3. The rotary damper 2 includes a rotor outer shell 2-1-1 and a rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is fixedly connected to the crossarm angle steel reinforcement device 1. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are rotatably connected. The rotor outer shell 2-1-1 is also fixedly connected to the damping rod 3. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are connected to each other to form a closed structure. The closed structure contains hydraulic oil 2-1-7. A first rotor baffle 2-1-5 is provided on the inner wall of the rotor outer shell 2-1-1. The first rotor baffle 2-1-5 divides the closed structure. The first rotor baffle 2-1-5 has a first oil passage hole 2-1-6. When the damping rod 3 vibrates with the conductor, it drives the rotor housing 2-1-1 to vibrate synchronously, thereby causing the rotor housing 2-1-1 to rotate relative to the rotor inner housing 2-2-1, and causing the hydraulic oil 2-1-7 to pass through the first oil passage 2-1-6 to achieve vibration reduction.

[0121] The crossarm angle steel reinforcement device 1 can adopt a reinforcement structure from the prior art, as long as it can reinforce the crossarm structure, reduce fatigue of the crossarm structure, and prevent the bolts on the crossarm from loosening. In this invention, the crossarm angle steel reinforcement device is preferably configured as described below.

[0122] The damping rod 2 can also adopt a damping structure from the prior art, which can achieve the effect of damping and energy dissipation. The damping rod in this invention is preferably the specific structure of the damping rod described below.

[0123] The rotary damper 2 includes two rotor inner shells 2-2-1 and two rotor outer shells 2-1-1. The two rotor inner shells 2-2-1 are arranged opposite to each other, and the connecting end of the crossbeam angle steel reinforcement device 1 is embedded between the two rotor inner shells 2-2-1. Two rotor outer shells 2-1-1 are respectively arranged on the outside of two rotor inner shells 2-2-1, and the two rotor outer shells 2-1-1 are symmetrically arranged with respect to the connecting end of the crossarm angle steel reinforcement device 1; The rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the left side of the connecting end are connected to each other to form a closed structure; the rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the right side of the connecting end are connected to each other to form a closed structure.

[0124] like Figure 3 As shown, the rotary damper 2 is square and has a slot at one end. The two sides of the slot are symmetrical, specifically, a rotor inner shell 2-2-1 and a rotor outer shell 2-1-1 are respectively set on the two sides of the slot; the two rotor outer shells 2-1-1 are connected as one piece at the end of the rotary damper 2. The slot is located at the position for fixed connection with the crossarm angle steel reinforcement device 1.

[0125] like Figure 4The diagram shows the structure of rotor housing 2-1-1. One end of rotor housing 2-1-1 is arc-shaped, and the other end is square. One side of rotor housing 2-1-1 with the arc-shaped end face has a cylindrical groove, forming a cylindrical mounting space. A housing bearing 2-1-2 is installed at the center (center) of the inner wall of the cylindrical groove. The housing bearing 2-1-2 can be fixedly connected to the rotor housing 2-1-1 by bonding its outer ring. Below the housing bearing 2-1-2, a first rotor baffle 2-1-5 is installed. The height of the first rotor baffle 2-1-5 protruding from the inner wall of rotor housing 2-1-1 is the same as the depth of the cylindrical groove. Both sides of the first rotor baffle 2-1-5 contact the side wall of the housing bearing 2-1-2 and the inner wall of the rotor housing 2-1-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5, hydraulic oil 2-1-7 must pass through the first oil passage hole 2-1-6.

[0126] Additionally, on one side of the housing bearing 2-1-2 ( Figure 4 On the right side of the image, a first adjusting block 2-1-4 is provided. The number of first adjusting blocks 2-1-4 can be one or more, such as two, three, or four. The first adjusting blocks 2-1-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent first adjusting blocks 2-1-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the first adjusting block 2-1-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0127] The first adjusting block 2-1-4 is made of shape memory alloy. When the hydraulic oil 2-1-7 flows through the first adjusting block 2-1-4, the friction between the hydraulic oil 2-1-7 and the first adjusting block 2-1-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the first adjusting block 2-1-4 expands due to heat, further increasing the flow damping of the hydraulic oil 2-1-7, generating a large amount of energy, and realizing the rapid consumption of vibration energy.

[0128] like Figure 5 The diagram shows the structure of the rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is generally cylindrical with one flat end being open and the interior being hollow. Specifically, the rotor inner shell 2-2-1 includes a circular base plate with a ring around its edge. The inner side of the base plate is provided with a rotating shaft 2-2-3, a second rotor baffle 2-2-5, and a second adjusting block 2-2-4.

[0129] A rotating shaft 2-2-3 is disposed at the center (center) of the inner sidewall of the rotor inner shell 2-2-1. The rotating shaft 2-2-3 can be integrally formed with the rotor inner shell 2-2-1, or it can be fixedly connected in other ways. In this embodiment, an inner shell bearing 2-2-2 is fixedly disposed on the rotor inner shell 2-2-1, and the inner shell bearing 2-2-2 is interference-fitted with the rotating shaft 2-2-3. In other embodiments, the rotor inner shell 2-2-1 and the rotating shaft 2-2-3 can also be directly welded together.

[0130] The rotating shaft 2-2-3 is inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2 and rotates with the outer shell bearing 2-1-2. Thus, the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are rotatably connected. Additionally, the rotor inner shell 2-2-1 has a short, cylindrical protrusion on the outer surface of the rotating shaft 2-2-3 for fixed connection with the crossarm angle steel reinforcement device 1.

[0131] In order for the rotating shaft 2-2-3 to be inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2, the cylindrical sidewalls of the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are designed to fit together. Specifically, when the rotating shaft 2-2-3 is inserted into the outer shell bearing 2-1-2, the rotor inner shell 2-2-1 is embedded inside the rotor outer shell 2-1-1, that is, the sidewall of the rotor inner shell 2-2-1 overlaps with the inner wall of the cylindrical groove of the rotor outer shell 2-1-1.

[0132] like Figure 5 As shown, a second rotor baffle 2-2-5 is provided above the rotating shaft 2-2-3, and a second oil passage hole 2-2-6 is provided on the second rotor baffle 2-2-5. The height of the second rotor baffle 2-2-5 protruding from the inner wall of the rotor inner shell 2-2-1 is the same as the opening depth of the rotor inner shell 2-2-1, and the two sides of the second rotor baffle 2-2-5 are in contact with the side wall of the inner shell bearing 2-2-2 and the inner wall of the rotor inner shell 2-2-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the second rotor baffle 2-2-5, the hydraulic oil 2-1-7 must pass through the second oil passage hole 2-2-6.

[0133] After the inner rotor housing 2-2-1 and the outer rotor housing 2-1-1 are aligned, the rotating shaft 2-2-3 is inserted into the outer housing bearing 2-1-2, causing the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 to divide the enclosed structure into two independent spaces. This separation does not necessarily require a complete seal. When hydraulic oil exchanges between the two spaces, most of the hydraulic oil passes through the first oil passage 2-1-6 and the second oil passage 2-2-6.

[0134] Both the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are made of shape memory alloy.

[0135] In addition, a second adjusting block 2-2-4 is provided on the inner sidewall of the rotor inner shell 2-2-1. The number of second adjusting blocks 2-2-4 can be one or more, such as two, three, or four. The second adjusting blocks 2-2-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent second adjusting blocks 2-2-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the second adjusting block 2-2-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0136] The second adjusting block 2-2-4 is made of shape memory alloy. When hydraulic oil 2-1-7 flows through the second adjusting block 2-2-4, the friction between the hydraulic oil 2-1-7 and the second adjusting block 2-2-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the second adjusting block 2-2-4 expands due to heat, further increasing the flow damping of the hydraulic oil and generating a large amount of energy, thus achieving rapid consumption of vibration energy.

[0137] Furthermore, in a preferred embodiment, the first adjusting block 2-1-4 and the second adjusting block 2-2-4 are respectively disposed on the left and right sides of the second rotor baffle 2-2-5.

[0138] like Figure 6 The diagram shows the structure of the damping rod 3. The damping rod 3 includes a damping rod sleeve 3-1. One end of the damping rod sleeve 3-1 is connected to the rotary damper 2. The other end of the damping rod sleeve 3-1 is provided with a force transmission rod 3-2. The force transmission rod 3-2 extends into the interior of the damping rod sleeve 3-1 from the other end of the damping rod sleeve 3-1. The portion of the force transmission rod 3-2 located inside the damping rod sleeve 3-1 connects the conductor plate 3-13 and the baffle 3-9. The damping rod sleeve 3-1 is equipped with a magnetic energy dissipation component, a first energy dissipation component 3-11, and a second energy dissipation component. The conductor plate 3-13 cooperates with the magnetic energy dissipation component to dissipate energy by cutting magnetic field lines. The baffle 3-9 cooperates with the first energy dissipation component 3-11 and the second energy dissipation component to dissipate energy.

[0139] The damping rod sleeve 3-1 is rectangular or square. The force transmission rod 3-2 includes a rod portion passing through the damping rod sleeve 3-1. The baffle 3-9 is positioned almost perpendicular to or perpendicular to the rod portion. The conductor plate 3-13 is located on the left side of the rod portion and extends towards the left side wall of the damping rod sleeve 3-1. Magnetic energy dissipation components are arranged on the upper and lower sides of the conductor plate 3-13. A first energy dissipation component 3-11 is arranged between the magnetic energy dissipation component and the left side wall of the damping rod sleeve 3-1. A second energy dissipation component is arranged between the baffle 3-9 and the right side wall of the damping rod sleeve 3-1.

[0140] The magnetic energy dissipation component includes two support plates 3-8, each with a permanent magnet 3-12 disposed on an opposite side. A conductor plate 3-13 is disposed between the two support plates 3-8. The permanent magnets 3-12 on the two support plates 3-8 have opposite magnetic poles. Therefore, there are magnetic field lines (magnetic lines of force) between the permanent magnets 3-12 on the two support plates 3-8. When the conductor plate 3-13 moves between the support plates 3-8, it cuts the magnetic field lines, thereby generating electrical energy. The electrical energy is converted into heat energy on the conductor plate 3-13 and consumed therebetween. The heat energy is dissipated into the outside air through heat transfer.

[0141] Multiple permanent magnets 3-12 are arranged on the support plate 3-8, and the multiple permanent magnets 3-12 are arranged in an array on one side of the support plate 3-8.

[0142] The first energy-consuming component 3-11 is a front spring. The left end (the upper end in actual use) of the bearing plate 3-8 is connected to the left inner wall of the damping rod sleeve 3-1 through the front spring. Guide rails are provided on the inner side walls of the damping rod sleeve 3-1 on the front and rear sides of the bearing plate 3-8. The front and rear sides of the bearing plate 3-8 are embedded in the corresponding guide rails so that the bearing plate 3-8 can move along the guide rails.

[0143] There are two front springs, and each front spring is connected to a bearing plate 3-8. That is, the upper and lower sides of the conductor plate 3-13 have the same structure. Preferably, the two bearing plates 3-8 and the front springs are arranged symmetrically with respect to the conductor plate 3-13.

[0144] The second energy-consuming component is the rear spring 3-10. One end of the force transmission rod 3-2, which extends into the interior of the damping rod sleeve 3-1, is connected to the baffle 3-9. The baffle 3-9 is connected to the conductor plate 3-13. The baffle 3-9 and the inner wall of the right end of the damping rod sleeve 3-1 are connected by the rear spring 3-10.

[0145] There are two rear springs 3-10. One rear spring 3-10 is connected to each of the upper and lower ends of the baffle 3-9. Preferably, the two rear springs 3-10 are symmetrically arranged on both sides of the force transmission rod 3-2.

[0146] A transmission assembly is provided on the outer side of the bearing plate 3-8. The baffle 3-9 is fixedly connected to the steel plate 3-4, and the steel plate 3-4 is arranged parallel to the bearing plate 3-8. The other end of the steel plate 3-4 passes through the left end of the damping rod sleeve 3-1 and can reciprocate relative to the left side wall of the damping rod sleeve 3-1. The steel plate 3-4 is connected to the transmission assembly and transmits the movement of the baffle 3-9 to the bearing plate 3-8.

[0147] The number of transmission components and steel plates 3-4 are both 2. Two transmission components are symmetrically arranged on the upper and lower sides of conductor plate 3-13. The transmission component located above conductor plate 3-13 has its lower end engaged with bearing plate 3-8 and its upper end engaged with steel plate 3-4. The transmission component located above conductor plate 3-13 has its upper end engaged with bearing plate 3-8 and its lower end engaged with steel plate 3-4.

[0148] The transmission assembly is a gear and rack mechanism. The gear and rack mechanism includes a first rack 3-7, a gear 3-5, and a second rack 3-14. The first rack 3-7 is disposed on one side of the steel plate 3-4 opposite to the support plate 3-8, and the second rack 3-14 is disposed on one side of the support plate 3-8 opposite to the steel plate 3-4. The gear 3-5 is disposed between the first rack 3-7 and the second rack 3-14, and the first rack 3-7 and the gear 3-5 mesh, as do the second rack 3-14 and the gear 3-5. The gear 3-5 has a gear pre-drilled hole 3-6 at its center. A fixed shaft is set in the gear pre-drilled hole 3-6, and the two ends of the fixed shaft are fixed to the front and rear side walls of the damping rod sleeve 3-1. Thus, the gear 3-5 is fixedly set in the damping rod sleeve 3-1.

[0149] The end of the force transmission rod 3-2 extending out of the damping rod sleeve 3-1 has a connecting hole 3-3, through which the force transmission rod 3-2 is connected to an insulator string with wires installed.

[0150] When the conductor vibrates or swings, it drives the rotor housing 2-1-1 to rotate through the damping rod 3. The rotor housing 2-1-1 rotates relative to the rotor inner housing 2-2-1. Therefore, due to the high viscosity of the hydraulic oil 2-1-7 inside the rotary damper 2, it is driven by the rotor housing 2-1-1 and flows. The hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5. When the hydraulic oil 2-1-7 with a certain viscosity passes through the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6, strong fluid friction will be generated. The friction converts mechanical energy into heat energy, causing the hydraulic oil temperature to rise. The heat is dissipated to the outside air through the rotor housing 2-1-1, the rotor inner housing 2-2-1 and other components by heat transfer, realizing the conversion and consumption of energy.

[0151] As the temperature of the hydraulic oil rises, the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are heated, causing the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6 to expand, the opening becomes smaller, the flow damping of the hydraulic oil 2-1-7 increases, further accelerating energy consumption and increasing the energy consumption rate.

[0152] In addition, since the first regulating block 2-1-4 and the second regulating block 2-2-4 are also made of shape memory alloy, after the temperature of the hydraulic oil 2-1-7 rises, the first regulating block 2-1-4 and the second regulating block 2-2-4 also expand and deform, which increases the flow resistance of the hydraulic oil 2-1-7. In addition, it also disrupts the flow direction of the hydraulic oil 2-1-7, further accelerating energy consumption.

[0153] When the conductor moves up and down ( Figure 6 When vibrating in the left and right directions (as shown in the figure), the force transmission rod 3-2 is subjected to force and moves back and forth within the damping rod sleeve 3-1. The reciprocating movement of the force transmission rod 3-2 drives the conductor plate 3-13 to move back and forth in the left and right directions as shown in the figure, and also drives the baffle 3-9 to move back and forth in the left and right directions as shown in the figure.

[0154] When the conductor plate 3-13 reciprocates, it cuts the magnetic lines of force between the permanent magnets 3-12 on the two support plates 3-8, thereby generating electrical energy and realizing the conversion of kinetic energy into electrical energy. This slows down the movement of the conductor plate 3-13. The converted electrical energy further accumulates in the conductor plate 3-13 to generate heat, realizing the conversion of electrical energy into thermal energy. The thermal energy is dissipated to the outside air through heat transfer, thereby realizing the magnetic energy dissipation.

[0155] When the baffle 3-9 reciprocates, it compresses the rear spring 3-10, thereby dissipating energy through the buffering effect of the rear spring 3-10. On the other hand, the baffle 3-9 drives the steel plate 3-4 to move, which in turn drives the first rack 3-7 to move. The first rack 3-7 drives the gear 3-5 to rotate, which in turn drives the second rack 3-14 to move. The second rack 3-14 drives the support plate 3-8 to move, and the movement of the support plate 3-8 stretches or compresses the front spring, thereby further dissipating energy through the buffering effect of the front spring.

[0156] Therefore, this embodiment can achieve multiple vibration reduction and energy dissipation.

[0157] Example 4 The only difference between this embodiment and Embodiment 3 is the structure of the damping rod. Specifically, in this embodiment, the front spring in Embodiment 3 is replaced with a shape memory alloy plate. That is, the first energy dissipation component 3-11 is a shape memory alloy plate, and the left end of the support plate 3-8 is connected to the left inner wall of the damping rod sleeve 3-1 through the shape memory alloy plate.

[0158] When the bearing plate 3-8 reciprocates, the bearing plate 3-8 compresses or stretches the shape memory alloy plate, and the stretching or compression of the shape memory alloy plate consumes energy.

[0159] Example 5 This embodiment provides a multi-stage vibration damping and energy dissipation connection device for the crossarm and insulator of a transmission line, such as... Figure 1 As shown, it includes a crossarm angle steel reinforcement device 1, a rotation damper 2, and a damping rod 3. The crossarm angle steel reinforcement device 1 is connected to the transmission tower, the damping rod 3 is connected to the insulator, and the rotation damper 2 is connected between the crossarm angle steel reinforcement device 1 and the damping rod 3. The rotary damper 2 includes a rotor outer shell 2-1-1 and a rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is fixedly connected to the crossarm angle steel reinforcement device 1. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are rotatably connected. The rotor outer shell 2-1-1 is also fixedly connected to the damping rod 3. The rotor outer shell 2-1-1 and the rotor inner shell 2-2-1 are connected to each other to form a closed structure. The closed structure contains hydraulic oil 2-1-7. A first rotor baffle 2-1-5 is provided on the inner wall of the rotor outer shell 2-1-1. The first rotor baffle 2-1-5 divides the closed structure. The first rotor baffle 2-1-5 has a first oil passage hole 2-1-6. When the damping rod 3 vibrates with the conductor, it drives the rotor housing 2-1-1 to vibrate synchronously, thereby causing the rotor housing 2-1-1 to rotate relative to the rotor inner housing 2-2-1, and causing the hydraulic oil 2-1-7 to pass through the first oil passage 2-1-6 to achieve vibration reduction.

[0160] The crossarm angle steel reinforcement device 1 can adopt a reinforcement structure from the prior art, as long as it can reinforce the crossarm structure, reduce fatigue of the crossarm structure, and prevent the bolts on the crossarm from loosening. In this invention, the crossarm angle steel reinforcement device is preferably configured as described below.

[0161] The damping rod 2 can also adopt a damping structure from the prior art, which can achieve the effect of damping and energy dissipation. The damping rod in this invention is preferably the specific structure of the damping rod described below.

[0162] The rotary damper 2 includes two rotor inner shells 2-2-1 and two rotor outer shells 2-1-1. The two rotor inner shells 2-2-1 are arranged opposite to each other, and the connecting end of the crossbeam angle steel reinforcement device 1 is embedded between the two rotor inner shells 2-2-1. Two rotor outer shells 2-1-1 are respectively arranged on the outside of two rotor inner shells 2-2-1, and the two rotor outer shells 2-1-1 are symmetrically arranged with respect to the connecting end of the crossarm angle steel reinforcement device 1; The rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the left side of the connecting end are connected to each other to form a closed structure; the rotor inner shell 2-2-1 and rotor outer shell 2-1-1 located on the right side of the connecting end are connected to each other to form a closed structure.

[0163] like Figure 3 As shown, the rotary damper 2 is square and has a slot at one end. The two sides of the slot are symmetrical, specifically, a rotor inner shell 2-2-1 and a rotor outer shell 2-1-1 are respectively set on the two sides of the slot; the two rotor outer shells 2-1-1 are connected as one piece at the end of the rotary damper 2. The slot is located at the position for fixed connection with the crossarm angle steel reinforcement device 1.

[0164] like Figure 4 The diagram shows the structure of rotor housing 2-1-1. One end of rotor housing 2-1-1 is arc-shaped, and the other end is square. One side of rotor housing 2-1-1 with the arc-shaped end face has a cylindrical groove, forming a cylindrical mounting space. A housing bearing 2-1-2 is installed at the center (center) of the inner wall of the cylindrical groove. The housing bearing 2-1-2 can be fixedly connected to the rotor housing 2-1-1 by bonding its outer ring. Below the housing bearing 2-1-2, a first rotor baffle 2-1-5 is installed. The height of the first rotor baffle 2-1-5 protruding from the inner wall of rotor housing 2-1-1 is the same as the depth of the cylindrical groove. Both sides of the first rotor baffle 2-1-5 contact the side wall of the housing bearing 2-1-2 and the inner wall of the rotor housing 2-1-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5, hydraulic oil 2-1-7 must pass through the first oil passage hole 2-1-6.

[0165] Additionally, on one side of the housing bearing 2-1-2 ( Figure 4 On the right side of the image, a first adjusting block 2-1-4 is provided. The number of first adjusting blocks 2-1-4 can be one or more, such as two, three, or four. The first adjusting blocks 2-1-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent first adjusting blocks 2-1-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the first adjusting block 2-1-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0166] The first adjusting block 2-1-4 is made of shape memory alloy. When the hydraulic oil 2-1-7 flows through the first adjusting block 2-1-4, the friction between the hydraulic oil 2-1-7 and the first adjusting block 2-1-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the first adjusting block 2-1-4 expands due to heat, further increasing the flow damping of the hydraulic oil 2-1-7, generating a large amount of energy, and realizing the rapid consumption of vibration energy.

[0167] like Figure 5 The diagram shows the structure of the rotor inner shell 2-2-1. The rotor inner shell 2-2-1 is generally cylindrical with one flat end being open and the interior being hollow. Specifically, the rotor inner shell 2-2-1 includes a circular base plate with a ring around its edge. The inner side of the base plate is provided with a rotating shaft 2-2-3, a second rotor baffle 2-2-5, and a second adjusting block 2-2-4.

[0168] A rotating shaft 2-2-3 is disposed at the center (center) of the inner sidewall of the rotor inner shell 2-2-1. The rotating shaft 2-2-3 can be integrally formed with the rotor inner shell 2-2-1, or it can be fixedly connected in other ways. In this embodiment, an inner shell bearing 2-2-2 is fixedly disposed on the rotor inner shell 2-2-1, and the inner shell bearing 2-2-2 is interference-fitted with the rotating shaft 2-2-3. In other embodiments, the rotor inner shell 2-2-1 and the rotating shaft 2-2-3 can also be directly welded together.

[0169] The rotating shaft 2-2-3 is inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2 and rotates with the outer shell bearing 2-1-2. Thus, the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are rotatably connected. Additionally, the rotor inner shell 2-2-1 has a short, cylindrical protrusion on the outer surface of the rotating shaft 2-2-3 for fixed connection with the crossarm angle steel reinforcement device 1.

[0170] In order for the rotating shaft 2-2-3 to be inserted into the bearing hole 2-1-3 of the outer shell bearing 2-1-2, the cylindrical sidewalls of the rotor inner shell 2-2-1 and the rotor outer shell 2-1-1 are designed to fit together. Specifically, when the rotating shaft 2-2-3 is inserted into the outer shell bearing 2-1-2, the rotor inner shell 2-2-1 is embedded inside the rotor outer shell 2-1-1, that is, the sidewall of the rotor inner shell 2-2-1 overlaps with the inner wall of the cylindrical groove of the rotor outer shell 2-1-1.

[0171] like Figure 5As shown, a second rotor baffle 2-2-5 is provided above the rotating shaft 2-2-3, and a second oil passage hole 2-2-6 is provided on the second rotor baffle 2-2-5. The height of the second rotor baffle 2-2-5 protruding from the inner wall of the rotor inner shell 2-2-1 is the same as the opening depth of the rotor inner shell 2-2-1, and the two sides of the second rotor baffle 2-2-5 are in contact with the side wall of the inner shell bearing 2-2-2 and the inner wall of the rotor inner shell 2-2-1, respectively. This contact does not need to be completely separated; a slight gap is acceptable. Therefore, when hydraulic oil 2-1-7 passes through the second rotor baffle 2-2-5, the hydraulic oil 2-1-7 must pass through the second oil passage hole 2-2-6.

[0172] After the inner rotor housing 2-2-1 and the outer rotor housing 2-1-1 are aligned, the rotating shaft 2-2-3 is inserted into the outer housing bearing 2-1-2, causing the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 to divide the enclosed structure into two independent spaces. This separation does not necessarily require a complete seal. When hydraulic oil exchanges between the two spaces, most of the hydraulic oil passes through the first oil passage 2-1-6 and the second oil passage 2-2-6.

[0173] Both the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are made of shape memory alloy.

[0174] In addition, a second adjusting block 2-2-4 is provided on the inner sidewall of the rotor inner shell 2-2-1. The number of second adjusting blocks 2-2-4 can be one or more, such as two, three, or four. The second adjusting blocks 2-2-4 can be arranged in a circular array or irregularly distributed, as long as there is a gap between adjacent second adjusting blocks 2-2-4, allowing hydraulic oil 2-1-7 to flow through. The cross-section of the second adjusting block 2-2-4 can be square, circular, elliptical, triangular, trapezoidal, or polygonal, etc.

[0175] The second adjusting block 2-2-4 is made of shape memory alloy. When hydraulic oil 2-1-7 flows through the second adjusting block 2-2-4, the friction between the hydraulic oil 2-1-7 and the second adjusting block 2-2-4 generates heat, consuming energy. In addition, the heat generated causes the hydraulic oil temperature to rise, and the second adjusting block 2-2-4 expands due to heat, further increasing the flow damping of the hydraulic oil and generating a large amount of energy, thus achieving rapid consumption of vibration energy.

[0176] Furthermore, in a preferred embodiment, the first adjusting block 2-1-4 and the second adjusting block 2-2-4 are respectively disposed on the left and right sides of the second rotor baffle 2-2-5.

[0177] like Figure 6The diagram shows the structure of the damping rod 3. The damping rod 3 includes a damping rod sleeve 3-1. One end of the damping rod sleeve 3-1 is connected to the rotary damper 2. The other end of the damping rod sleeve 3-1 is provided with a force transmission rod 3-2. The force transmission rod 3-2 extends into the interior of the damping rod sleeve 3-1 from the other end of the damping rod sleeve 3-1. The portion of the force transmission rod 3-2 located inside the damping rod sleeve 3-1 connects the conductor plate 3-13 and the baffle 3-9. The damping rod sleeve 3-1 is equipped with a magnetic energy dissipation component, a first energy dissipation component 3-11, and a second energy dissipation component. The conductor plate 3-13 cooperates with the magnetic energy dissipation component to dissipate energy by cutting magnetic field lines. The baffle 3-9 cooperates with the first energy dissipation component 3-11 and the second energy dissipation component to dissipate energy.

[0178] The damping rod sleeve 3-1 is rectangular or square. The force transmission rod 3-2 includes a rod portion passing through the damping rod sleeve 3-1. The baffle 3-9 is positioned almost perpendicular to or perpendicular to the rod portion. The conductor plate 3-13 is located on the left side of the rod portion and extends towards the left side wall of the damping rod sleeve 3-1. Magnetic energy dissipation components are arranged on the upper and lower sides of the conductor plate 3-13. A first energy dissipation component 3-11 is arranged between the magnetic energy dissipation component and the left side wall of the damping rod sleeve 3-1. A second energy dissipation component is arranged between the baffle 3-9 and the right side wall of the damping rod sleeve 3-1.

[0179] The magnetic energy dissipation component includes two support plates 3-8, each with a permanent magnet 3-12 disposed on an opposite side. A conductor plate 3-13 is disposed between the two support plates 3-8. The permanent magnets 3-12 on the two support plates 3-8 have opposite magnetic poles. Therefore, there are magnetic field lines (magnetic lines of force) between the permanent magnets 3-12 on the two support plates 3-8. When the conductor plate 3-13 moves between the support plates 3-8, it cuts the magnetic field lines, thereby generating electrical energy. The electrical energy is converted into heat energy on the conductor plate 3-13 and consumed therebetween. The heat energy is dissipated into the outside air through heat transfer.

[0180] Multiple permanent magnets 3-12 are arranged on the support plate 3-8, and the multiple permanent magnets 3-12 are arranged in an array on one side of the support plate 3-8.

[0181] The first energy-consuming component 3-11 is a front spring. The left end (the upper end in actual use) of the bearing plate 3-8 is connected to the left inner wall of the damping rod sleeve 3-1 through the front spring. Guide rails are provided on the inner side walls of the damping rod sleeve 3-1 on the front and rear sides of the bearing plate 3-8. The front and rear sides of the bearing plate 3-8 are embedded in the corresponding guide rails so that the bearing plate 3-8 can move along the guide rails.

[0182] There are two front springs, and each front spring is connected to a bearing plate 3-8. That is, the upper and lower sides of the conductor plate 3-13 have the same structure. Preferably, the two bearing plates 3-8 and the front springs are arranged symmetrically with respect to the conductor plate 3-13.

[0183] The second energy-consuming component is the rear spring 3-10. One end of the force transmission rod 3-2, which extends into the interior of the damping rod sleeve 3-1, is connected to the baffle 3-9. The baffle 3-9 is connected to the conductor plate 3-13. The baffle 3-9 and the inner wall of the right end of the damping rod sleeve 3-1 are connected by the rear spring 3-10.

[0184] There are two rear springs 3-10. One rear spring 3-10 is connected to each of the upper and lower ends of the baffle 3-9. Preferably, the two rear springs 3-10 are symmetrically arranged on both sides of the force transmission rod 3-2.

[0185] A transmission assembly is provided on the outer side of the bearing plate 3-8. The baffle 3-9 is fixedly connected to the steel plate 3-4, and the steel plate 3-4 is arranged parallel to the bearing plate 3-8. The other end of the steel plate 3-4 passes through the left end of the damping rod sleeve 3-1 and can reciprocate relative to the left side wall of the damping rod sleeve 3-1. The steel plate 3-4 is connected to the transmission assembly and transmits the movement of the baffle 3-9 to the bearing plate 3-8.

[0186] The number of transmission components and steel plates 3-4 are both 2. Two transmission components are symmetrically arranged on the upper and lower sides of conductor plate 3-13. The transmission component located above conductor plate 3-13 has its lower end engaged with bearing plate 3-8 and its upper end engaged with steel plate 3-4. The transmission component located above conductor plate 3-13 has its upper end engaged with bearing plate 3-8 and its lower end engaged with steel plate 3-4.

[0187] The transmission assembly is a gear and rack mechanism. The gear and rack mechanism includes a first rack 3-7, a gear 3-5, and a second rack 3-14. The first rack 3-7 is disposed on one side of the steel plate 3-4 opposite to the support plate 3-8, and the second rack 3-14 is disposed on one side of the support plate 3-8 opposite to the steel plate 3-4. The gear 3-5 is disposed between the first rack 3-7 and the second rack 3-14, and the first rack 3-7 and the gear 3-5 mesh, as do the second rack 3-14 and the gear 3-5. The gear 3-5 has a gear pre-drilled hole 3-6 at its center. A fixed shaft is set in the gear pre-drilled hole 3-6, and the two ends of the fixed shaft are fixed to the front and rear side walls of the damping rod sleeve 3-1. Thus, the gear 3-5 is fixedly set in the damping rod sleeve 3-1.

[0188] The end of the force transmission rod 3-2 extending out of the damping rod sleeve 3-1 has a connecting hole 3-3, through which the force transmission rod 3-2 is connected to an insulator string with wires installed.

[0189] like Figure 2 As shown, the crossarm angle steel reinforcement device 1 includes a crossarm angle steel 1-1, an outer reinforcement angle steel 1-2, and an inner reinforcement angle steel 1-3. The crossarm angle steel 1-1 is arranged between the outer reinforcement angle steel 1-2 and the inner reinforcement angle steel 1-3, and the right-angle ends of the outer reinforcement angle steel 1-2 extend beyond the crossarm angle steel 1-1, and the right-angle ends of the inner reinforcement angle steel 1-3 extend beyond the crossarm angle steel 1-1. The right-angle ends of the outer reinforcing angle steel 1-2 and the right-angle ends of the inner reinforcing angle steel 1-3 are connected by bolts 1-5, thereby fastening the crossbeam angle steel 1-1 between the outer reinforcing angle steel 1-2 and the inner reinforcing angle steel 1-3.

[0190] The crossarm angle steel 1-1 is an L-shaped crossarm structure applicable in the prior art for connecting insulator strings and transmission towers. The outer reinforcing angle steel 1-2 is also L-shaped, and its inner surface at the right angle is fitted with the outer surface of the crossarm angle steel 1-1. The outer surface of the inner reinforcing angle steel 1-3 is L-shaped, and its outer surface is fitted with the inner surface of the crossarm angle steel 1-1.

[0191] A reinforcing rib 1-4 is provided on the inner side of the right angle of the inner reinforcing angle steel 1-3. The reinforcing rib 1-4 is inclined relative to the two right angle sides of the inner reinforcing angle steel 1-3. One end of the reinforcing rib 1-4 is fixedly connected to one right angle side of the inner reinforcing angle steel 1-3, and the other end is fixedly connected to the other right angle side of the inner reinforcing angle steel 1-3.

[0192] The lower end of the external reinforcing angle steel 1-2 is connected to the stator 1-6, and the stator 1-6 is fixedly connected to the rotor inner shell 2-2-1. Specifically, the end of the stator 1-6 ( Figure 2 The lower end of the stator 1-6 is arc-shaped, and grooves 1-7 are provided on both sides of the arc-shaped portion of the stator 1-6. The outer side of the rotor inner shell 2-2-1 has a protrusion, which is embedded in the groove 1-7 with an interference fit. The end of the stator 1-6 is connected to the rotor inner shell 2-2-1 by welding.

[0193] The outer reinforcing angle steel 1-2 and the inner reinforcing angle steel 1-3 are attached together with the crossarm angle steel 1-1 and connected by high-strength bolts through the bolt holes. When the crossarm angle steel 1-1 is under stress, the force can be transferred to the outer reinforcing angle steel 1-2 and the inner reinforcing angle steel 1-3, dispersing the stress intensity of the crossarm angle steel 1-1 and thus enhancing its load-bearing capacity. The force from the lower part is transferred to the entire crossarm angle steel reinforcement device 1, avoiding stress concentration failure.

[0194] When the conductor vibrates or swings, it drives the rotor housing 2-1-1 to rotate through the damping rod 3. The rotor housing 2-1-1 rotates relative to the rotor inner housing 2-2-1. Therefore, due to the high viscosity of the hydraulic oil 2-1-7 inside the rotary damper 2, it is driven by the rotor housing 2-1-1 and flows. The hydraulic oil 2-1-7 passes through the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5. When the hydraulic oil 2-1-7 with a certain viscosity passes through the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6, strong fluid friction will be generated. The friction converts mechanical energy into heat energy, causing the hydraulic oil temperature to rise. The heat is dissipated to the outside air through the rotor housing 2-1-1, the rotor inner housing 2-2-1 and other components by heat transfer, realizing the conversion and consumption of energy.

[0195] As the temperature of the hydraulic oil rises, the first rotor baffle 2-1-5 and the second rotor baffle 2-2-5 are heated, causing the first oil passage hole 2-1-6 and the second oil passage hole 2-2-6 to expand, the opening becomes smaller, the flow damping of the hydraulic oil 2-1-7 increases, further accelerating energy consumption and increasing the energy consumption rate.

[0196] In addition, since the first regulating block 2-1-4 and the second regulating block 2-2-4 are also made of shape memory alloy, after the temperature of the hydraulic oil 2-1-7 rises, the first regulating block 2-1-4 and the second regulating block 2-2-4 also expand and deform, which increases the flow resistance of the hydraulic oil 2-1-7. In addition, it also disrupts the flow direction of the hydraulic oil 2-1-7, further accelerating energy consumption.

[0197] When the conductor moves up and down ( Figure 6 When vibrating in the left and right directions (as shown in the figure), the force transmission rod 3-2 is subjected to force and moves back and forth within the damping rod sleeve 3-1. The reciprocating movement of the force transmission rod 3-2 drives the conductor plate 3-13 to move back and forth in the left and right directions as shown in the figure, and also drives the baffle 3-9 to move back and forth in the left and right directions as shown in the figure.

[0198] When the conductor plate 3-13 reciprocates, it cuts the magnetic lines of force between the permanent magnets 3-12 on the two support plates 3-8, thereby generating electrical energy and realizing the conversion of kinetic energy into electrical energy. This slows down the movement of the conductor plate 3-13. The converted electrical energy further accumulates in the conductor plate 3-13 to generate heat, realizing the conversion of electrical energy into thermal energy. The thermal energy is dissipated to the outside air through heat transfer, thereby realizing the magnetic energy dissipation.

[0199] When the baffle 3-9 reciprocates, it compresses the rear spring 3-10, thereby dissipating energy through the buffering effect of the rear spring 3-10. On the other hand, the baffle 3-9 drives the steel plate 3-4 to move, which in turn drives the first rack 3-7 to move. The first rack 3-7 drives the gear 3-5 to rotate, which in turn drives the second rack 3-14 to move. The second rack 3-14 drives the support plate 3-8 to move, and the movement of the support plate 3-8 stretches or compresses the front spring, thereby further dissipating energy through the buffering effect of the front spring.

[0200] Therefore, this embodiment can achieve multiple vibration reduction and energy dissipation.

[0201] In addition, the present invention adopts a combination design of permanent magnet 3-12 inside damping rod 3 and conductor plate 3-13. Through the principle of electromagnetic induction, the vibration kinetic energy is converted into electrical energy and heat energy and dissipated. Combined with the mechanical energy dissipation mechanism of gear rack and spring, a dual energy conversion path is formed, which significantly improves vibration reduction efficiency and is especially suitable for suppressing high-frequency micro-amplitude vibration.

[0202] This invention, through its innovative multi-stage energy-consuming structure, application of smart materials, and modular design, not only solves the technical bottlenecks of traditional connection devices, such as single energy consumption and high vulnerability, but also achieves a comprehensive improvement in vibration reduction performance, durability, and economy, providing a reliable guarantee for the long-term safe operation of ultra-high voltage transmission lines.

[0203] The above specific embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A multi-stage vibration damping and energy dissipation connection device for a transmission line crossarm and insulator, characterized in that, It includes a crossarm angle steel reinforcement device, a rotary damper, and a damping rod. The crossarm angle steel reinforcement device is connected to the transmission tower, the damping rod is connected to the insulator, and the rotary damper is connected between the crossarm angle steel reinforcement device and the damping rod. The rotary damper includes a rotor outer shell and a rotor inner shell. The rotor inner shell is fixedly connected to the crossarm angle steel reinforcement device, the rotor outer shell and the rotor inner shell are rotatably connected, and the rotor outer shell is fixedly connected to the damping rod. The rotor outer shell and the rotor inner shell are connected to each other to form a closed structure. The closed structure contains hydraulic oil, and a first rotor baffle is provided on the inner wall of the rotor outer shell. The first rotor baffle divides the closed structure and has a first oil passage hole. When the damping rod vibrates following the conductor, it drives the rotor housing to vibrate synchronously, thereby causing the rotor housing to rotate relative to the rotor inner housing, and causing hydraulic oil to pass through the first oil passage to achieve vibration reduction.

2. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 1, characterized in that, The rotary damper includes two rotor inner shells and two rotor outer shells, with the two rotor inner shells arranged opposite to each other, and the connecting end of the crossbeam angle steel reinforcement device is embedded between the two rotor inner shells. Two rotor housings are respectively located on the outside of two rotor inner housings, and the two rotor housings are symmetrically arranged with respect to the connecting end of the crossarm angle steel reinforcement device; The rotor inner shell and rotor outer shell located on the left side of the connecting end are connected to each other to form a closed structure; the rotor inner shell and rotor outer shell located on the right side of the connecting end are connected to each other to form a closed structure.

3. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 2, characterized in that, A housing bearing is provided at the center of the inner sidewall of the rotor housing, and a rotating shaft is provided at the center of the inner sidewall of the rotor inner housing. The rotating shaft is inserted into the housing bearing and rotates with the housing bearing.

4. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 3, characterized in that, A first rotor baffle is provided below the housing bearing, and a second rotor baffle is provided above the rotating shaft. A second oil passage hole is provided on the second rotor baffle. After the inner rotor shell and the outer rotor shell are connected to each other, the rotating shaft is inserted into the outer shell bearing, so that the first rotor baffle and the second rotor baffle divide the closed structure into two independent spaces.

5. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 4, characterized in that, Both the first rotor baffle and the second rotor baffle are made of shape memory alloy.

6. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 4, characterized in that, A first adjusting block is also provided on the inner side wall of the rotor housing.

7. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 6, characterized in that, The first adjustment block is made of shape memory alloy.

8. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 6, characterized in that, The number of the first adjustment blocks is two or more.

9. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 6, characterized in that, The first adjusting block has a square or circular cross-section.

10. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 6, characterized in that, A second adjusting block is also provided on the inner side wall of the rotor inner shell.

11. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 10, characterized in that, The second adjustment block is made of shape memory alloy.

12. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 10, characterized in that, The number of the second adjustment blocks is two or more.

13. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 10, characterized in that, The second adjusting block has a square or circular cross-section.

14. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 10, characterized in that, The rotor inner shell is cylindrical and includes a circular base plate with an annulus around its edge. The inner side of the base plate is provided with a rotating shaft, a second rotor baffle, and a second adjusting block.

15. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 10, characterized in that, The first adjusting block and the second adjusting block are respectively disposed on both sides of the second rotor baffle.

16. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 1, characterized in that, The damping rod includes a damping rod sleeve, one end of which is connected to the rotary damper, and the other end of which is provided with a force transmission rod that extends into the interior of the damping rod sleeve from the other end. The portion of the force transmission rod located inside the damping rod sleeve connects the conductor plate and the baffle. The damping rod sleeve is equipped with a magnetic energy dissipation component, a first energy dissipation component, and a second energy dissipation component. The conductor plate cooperates with the magnetic energy dissipation component to dissipate energy by cutting magnetic field lines. The baffle cooperates with the first energy dissipation component and the second energy dissipation component to dissipate energy.

17. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 16, characterized in that, The magnetic energy dissipation component includes two support plates, each with a permanent magnet disposed on an opposite side, and a conductor plate disposed between the two support plates; the permanent magnets on the two support plates have opposite magnetic poles.

18. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 17, characterized in that, Multiple permanent magnets are arranged on the support plate, and the multiple permanent magnets are arranged in an array on one side of the support plate.

19. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 17, characterized in that, The first energy-consuming component is a front spring. The left end of the bearing plate is connected to the left inner wall of the damping rod sleeve through the front spring. Guide rails are provided on the inner side walls of the damping rod sleeves on both sides of the bearing plate. The two sides of the bearing plate are embedded in the corresponding guide rails so that the bearing plate can move along the guide rails.

20. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 17, characterized in that, The first energy-consuming component is a shape memory alloy plate, and the left end of the support plate is connected to the left inner wall of the damping rod sleeve through the shape memory alloy plate.

21. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 17, characterized in that, The second energy-consuming component is a rear spring. One end of the force transmission rod, which extends into the interior of the damping rod sleeve, is connected to the baffle. The baffle is connected to the conductor plate, and the baffle is connected to the inner wall of the right end of the damping rod sleeve through the rear spring.

22. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 17, characterized in that, A transmission assembly is provided on the outer side of the support plate, and the baffle is fixedly connected to the steel plate, which is arranged parallel to the support plate. The other end of the steel plate passes through the left end of the damping rod sleeve and can reciprocate relative to the left sidewall of the damping rod sleeve; the steel plate connects to the transmission assembly and transmits the movement of the baffle to the support plate.

23. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 22, characterized in that, The transmission component is a gear and rack mechanism.

24. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 23, characterized in that, The gear and rack mechanism includes a first rack, a gear, and a second rack. The first rack is provided on one side of the steel plate relative to the bearing plate, and the second rack is provided on one side of the bearing plate relative to the steel plate. A gear is provided between the first rack and the second rack, and the first rack and the gear mesh, as do the second rack and the gear. The gear is fixedly installed inside the damping rod sleeve.

25. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 16, characterized in that, The end of the force transmission rod extending out of the damping rod sleeve has a connecting hole.

26. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 1, characterized in that, The crossarm angle steel reinforcement device includes a crossarm angle steel, an outer reinforcement angle steel, and an inner reinforcement angle steel. The crossarm angle steel is arranged between the outer reinforcement angle steel and the inner reinforcement angle steel, and the right-angle ends of the outer reinforcement angle steel extend beyond the crossarm angle steel, and the right-angle ends of the inner reinforcement angle steel also extend beyond the crossarm angle steel. The right-angle ends of the outer reinforcing angle steel and the right-angle ends of the inner reinforcing angle steel are connected by bolts, thereby securing the crossbeam angle steel between the outer reinforcing angle steel and the inner reinforcing angle steel.

27. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 26, characterized in that, A reinforcing plate is provided on the inner side of the right angle of the internally reinforced angle steel.

28. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 26, characterized in that, The lower end of the external reinforcing angle steel is connected to the stator, and the stator is fixedly connected to the inner shell of the rotor.

29. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 28, characterized in that, The stator has an arc-shaped end, and grooves are provided on both sides of the arc-shaped end portion of the stator. The outer side of the rotor inner shell has a protrusion, which is embedded in the groove and is an interference fit.

30. The multi-stage vibration damping and energy dissipation connection device for transmission line crossarms and insulators according to claim 29, characterized in that, The stator ends are connected to the rotor inner shell by welding.

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