Non-destructive performance improvement device for angle steel transmission tower based on multi-dimensional adaptive vibration control

Abstract

The present invention provides a non-destructive performance improvement device for angle steel transmission towers based on multi-dimensional adaptive vibration control, which uses an L-shaped angle steel clamp and a new type of inertial capacitance damper for combined reinforcement. The two limbs of the L-shaped angle steel clamp are connected by bolts to the new inertial capacitance damper. The new inertial capacitance damper consists of an outer shell, an inner shell, a ball bushing, a screw, an electromagnetic inertial capacitance damper, a hydraulic inertial capacitance damper, and a rubber damping buffer system. The present invention can achieve reinforcement and improvement of the transmission tower without damaging the original tower position, and has the advantages of strong stability, wide applicability, and convenient construction.

Description

Technical Field

[0001] The present invention relates to the field of transmission tower vibration reduction and reinforcement, and in particular to a lossless performance improvement device for angle steel transmission towers based on multi-dimensional adaptive vibration control. Background Art

[0002] Transmission towers are crucial infrastructure for power transmission, and their stability is directly linked to the safe operation of the power grid. Among the many threats posed by natural disasters, extreme disasters, with their suddenness and destructive power, pose a significant challenge to infrastructure, particularly transmission towers, which serve as critical nodes for power transmission. Although designed with multiple environmental factors in mind, their stability and safety still face significant challenges in the face of extreme natural disasters. For example, during an earthquake, rapid vibrations of the earth's crust and ground displacements exert a significant impact on the foundation of the transmission tower, causing a sudden increase in internal forces within the tower's angle steel. Furthermore, the propagation of seismic waves can cause resonance within the tower's main structure, placing additional dynamic loads on various parts of the tower and potentially damaging structural components. When this damage accumulates to a critical level, the tower may collapse, disrupting power transmission and severely impacting the power supply to surrounding areas.

[0003] Angle steel, a key component of transmission tower structures, plays a vital role in supporting transmission line loads and ensuring the stability and safety of power transmission. Furthermore, angle steel's lightweight and high strength enable transmission towers to withstand high wind pressure, ice loads, earthquakes, and other external forces. However, many existing transmission towers are experiencing significant wear and tear on their structural components, resulting in a significant decline in stiffness and load-bearing capacity. These towers are no longer suitable for current standards and cannot withstand significant external forces. Furthermore, maintaining or rebuilding these towers while in use is difficult and costly, making efficient operation and maintenance difficult. Transmission tower reinforcement is constrained by multiple factors. Drilling, cutting, and welding on the original angle steel should be avoided to prevent damage and maintain the original structural safety. Furthermore, during the reinforcement process, the towers remain energized, so the reinforcement device must be simple to install. Currently, various technical measures have been proposed for the reinforcement of transmission towers, such as installing damping devices at key locations, optimizing the cross-sectional form of tower angle steel, improving the inherent rigidity and strength of the material, and using high-quality, vibration-damping new materials to manufacture angle steel. However, the research and development and application of these technologies are still in the process of continuous improvement and development. Summary of the Invention

[0004] The purpose of the present invention is to address the shortcomings of existing reinforcement technology and provide a non-destructive performance improvement device for angle steel transmission towers based on multi-dimensional adaptive vibration control. The device adopts L-shaped angle steel clamps and new inertia damping for combined reinforcement. The present invention can realize reinforcement on the basis of non-damage to the original tower position of the transmission tower, and has the advantages of strong stability, wide applicability and convenient construction.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A device for improving the performance of an angle steel transmission tower without loss based on multi-dimensional adaptive vibration control, comprising an outer L-shaped angle steel fixture and an inner L-shaped angle steel fixture of identical structure, each comprising a first L-shaped angle steel and a second L-shaped angle steel, the first L-shaped angle steel and the second L-shaped angle steel being arranged vertically and connected by a vertical inertia damping device, and the flanges of the first L-shaped angle steel and the flanges of the second L-shaped angle steel being connected by a horizontal inertia damping device, the vertical inertia damping device and the horizontal inertia damping device each comprising an outer shell and an inner shell, the outer shell being sealed at one end and open at the other end, the inner shell being sealed at both ends and having the first end inserted therein The outer shell has an open end; a first spring is arranged between the first end of the inner shell and the first end plate inside the outer shell; a first ball sleeve is provided at the first end of the inner shell; one end of the lead screw is inserted into the inner shell, and the other end cooperates with the first ball sleeve, and is connected to the third end plate through the spring and the electromagnetic inertia damper; the third end plate and the fourth end plate installed inside the outer shell form a second cavity, the second cavity is filled with hydraulic oil, and a piezoelectric power generation unit is installed on the upper surface of the fourth end plate, and the piezoelectric power generation unit hinders the rotation of the electromagnetic inertia damper; a third cavity is formed between the fourth end plate and the piston plate, and the piston plate is connected to the fourth damping system.

[0007] As a further technical solution, the three outer L-shaped angle steel clamps and one inner L-shaped angle steel clamp form a set of non-destructive performance improvement devices, and multiple sets of non-destructive performance improvement devices can be set along the length direction of the reinforced angle steel.

[0008] As a further technical solution, three outer L-shaped angle steel clamps are installed on the outer side of the reinforced angle steel, and the inner L-shaped angle steel clamp is installed on the inner side of the reinforced angle steel, and the two adjacent outer L-shaped angle steel clamps and the adjacent outer L-shaped angle steel clamps and the inner L-shaped angle steel clamps are each connected by bolts.

[0009] As a further technical solution, the electromagnetic inertia damper includes a first end plate, a second end plate, a ratchet, and a rotating cylinder; the first end plate and the second end plate are fixed in the outer shell, and a second ball sleeve is installed in the center of the first end plate and the second end plate, and the second ball sleeve is rolled with the screw through the second ball sleeve. The two ends of the rotating cylinder are connected to the second ball sleeve, and the first end plate and the second end plate are filled with viscous liquid. The outer surface of the rotating cylinder 10-37 is provided with ratchets in positive and negative directions.

[0010] As a further technical solution, an electromagnet and a circular aluminum plate are respectively provided on the opposite surfaces of the first end plate and the second end plate.

[0011] As a further technical solution, the piezoelectric power generation unit controls the magnetic force of the electromagnet.

[0012] As a further technical solution, the third cavity is filled with compressible gas.

[0013] As a further technical solution, the fourth damping system includes a second spring, a sleeve, a reflux tank, a viscous liquid, a compression spiral buffer tube, a reflux spiral buffer tube, and a liquid storage tank; the upper end of the second spring is fixed to the lower surface of the piston plate, and the lower end is fixed to the upper surface of the reflux tank body; the piston rod of the piston plate is inserted into the sleeve, and the piston rod can slide in a sealed manner on the inner wall of the sleeve; the sleeve is fixed in the reflux tank; the compression spiral buffer tube is sleeved inside the reflux spiral buffer tube; the upper end of the compression spiral buffer tube is connected to the sleeve, and the lower end of the compression spiral buffer tube is connected to the liquid storage tank; the upper end of the reflux spiral buffer tube is connected to the reflux tank, and the lower end is connected to the liquid storage tank;

[0014] As a further technical solution, a plurality of damping nets are provided inside the compression spiral buffer tube and the return spiral buffer tube.

[0015] As a further technical solution, a rubber damping ball is further provided inside the inner shell, and rubber damping pads are provided on the inner walls at both ends of the inner shell.

[0016] Specifically, the working principle of the present invention is as follows:

[0017] The device is installed on the transmission tower angle steel and connected with bolts using outer and inner L-shaped angle clamps, forming a single unit with the angle steel. When subjected to external loads, the outer and inner L-shaped angle clamps restrain the angle steel from deforming. This deformation tendency is transmitted to the outer and inner L-shaped angle clamps, which in turn transmit this deformation tendency to the vertical and horizontal inertia damping devices attached to the lugs.

[0018] The vertical and horizontal inertial capacitive damping devices are subjected to compression or tension deformation, resulting in relative axial displacement between the outer and inner shells. The inner shell squeezes the screw. Because the screw and the first ball bushing limit the axial displacement of the inner shell, part of the axial displacement of the screw is converted into rotation of the screw around its axis. Simultaneously, the relative displacement between the inner and outer shells causes the spring to generate elastic force, serving as the first damping system for the device to respond to external forces. Furthermore, after the external force dissipates, the spring can restore the device to its initial, undeformed state. When the angle steel deforms to a certain extent, the screw rotates, causing the electromagnetic inertial capacitive damper to begin operating through its second ball bushing. The electromagnetic damper begins to rotate around the center of the screw, and the ratchet teeth on the electromagnetic damper dissipate and absorb energy under the damping action of the viscous fluid. The electromagnetic damper rotates in the viscous fluid to generate damping, serving as the second damping system for the device to respond to external forces.

[0019] As the angle steel continues to deform, the screw advances further, causing the third end plate at its lower end to move relative to the fourth end plate. This causes the hydraulic oil pressure in the second chamber to change, which in turn causes the piezoelectric generator located on the upper surface of the fourth end plate to generate current. The piezoelectric generator is connected to a pressure sensor, and a power extraction and storage unit, a conventional switch, a resistor, an electromagnetic relay, and a current sensor form a closed circuit, converting pressure into resistive heat, which is then dissipated. Simultaneously, the circuit utilizes an air-core inductor, an excitation coil, and an adsorption switch, allowing the generated current to flow through the electromagnets at both ends of the electromagnetic inertial damping device. As pressure increases, the pressure in the piezoelectric generator increases, and the pressure sensor enhances the efficiency of the power extraction and storage unit, causing the current to increase. When the current reaches a certain threshold, the electromagnetic relay activates, closing the adsorption switch and energizing the excitation coil, increasing the magnetism of the electromagnet. The electromagnet generates magnetic flux lines that pass through the circular aluminum plates at both ends of the electromagnetic inertial damper. This generates an induced current within the circular aluminum plates, hindering the rotation of the electromagnetic inertial damper. This device serves as a third damping system that responds to external forces. As the relative displacement between the inner shell and the outer shell increases, the fourth end plate moves downward. The fourth end plate and the piston plate form a fourth cavity. When the gas is compressed to a certain volume, the piston plate moves downward under the action of pressure. Springs are provided on the lower surface of the piston plate end plate and the upper surface of the outer side of the reflux tank to further dissipate energy, absorb kinetic energy and restore the device after energy dissipation. One end of the piston rod of the piston plate is inserted into the sleeve. The relative displacement generated by the piston plate will squeeze or expand the viscous liquid in the hydraulic inertial damper, causing the viscous liquid to pass through the reflux tank, the compression spiral buffer tube, the reflux spiral buffer tube, and the liquid storage tank. A damping net is provided in the reflux tank, the compression spiral buffer tube, the reflux spiral buffer tube, and the liquid storage tank. When the viscous liquid flows through the damping net, the damping net exerts a damping effect on the viscous liquid. The hydraulic inertial damper serves as the fourth-stage damping system of the new inertial damping device. When external forces are significant or the deformation of the transmission tower angle steel is severe, and the relative displacement between the inner and outer shells reaches the design limit, the rubber damping balls at the upper end of the screw will undergo frictional deformation under the action of the rubber damping pads at the upper and lower ends of the inner shell, further releasing energy while simultaneously decelerating the relative displacement between the inner and outer shells and the screw's rotation. This serves as the fifth-stage damping system of the new inertial capacitance damping device. Under the action of the clamp, the transmission tower angle steel transfers all external forces to the longitudinal and horizontal inertial capacitance damping devices for energy dissipation, thus reinforcing the tower angle steel, improving its load-bearing capacity, and preventing damage.

[0020] Beneficial effects of the present invention:

[0021] This invention is a non-destructive performance enhancement device for angle steel transmission towers based on multi-dimensional adaptive vibration control. This device maintains the rigidity and strength of the tower angle steel under external influences, improving its stability. This multi-dimensional enhancement improves the load-bearing capacity of the angle steel, overcoming the limitations and singleness of traditional tower reinforcement methods.

[0022] The invention's angle steel reinforcement method uses multiple L-shaped angle steel clamps connected by bolts. This invention is flexible to assemble and can be more effectively installed on the reinforced angle steel. This installation method avoids the problem of weakening the reinforced angle steel by drilling or welding.

[0023] This reinforcement method is efficient and fast, and the reinforcements are easy to install and lightweight, requiring no large lifting equipment or specialized installation tools. It is suitable for reinforcing transmission tower angle steel in a variety of environmental conditions. The present invention allows for factory-fabricated production tailored to the required reinforcement angle steel. A wide variety of accessories are compatible across different types of reinforcements, eliminating the need to individually design and adapt reinforcements for each component. Factory production and transportation, combined with on-site assembly and installation, are efficient and fast, reducing work time in exposed environments and facilitating emergency response.

[0024] The vertical and horizontal inertia damping devices employed in this invention differ from traditional piston dampers in that they offer enhanced vibration modulation and inertia amplification, effectively reducing the vibration response of the structure. The device also features a relatively low mass, facilitating construction and installation, and minimizing building space.

[0025] The vertical and horizontal inertia damping devices designed in this invention can respond in stages based on the magnitude of external forces and the degree of deformation of the transmission tower angle steel. To address varying degrees of damage, the present invention employs a five-stage damping system. The first stage involves spring tension or compression damping; the second stage involves rotational damping of the ratchet teeth on the electromagnetic inertia damper around the screw axis in the viscous fluid; the third stage involves the damping force generated by the magnetic flux lines generated by the excitation coil of the piezoelectric generating unit cut by the circular aluminum plate of the electromagnetic inertia damper under increased pressure, which hinders relative motion; the fourth stage involves the piston plate squeezing or expanding the viscous fluid, causing it to flow through the reflux tank, compression spiral buffer tube, reflux spiral buffer tube, and liquid storage tank. As the viscous fluid flows through the damping mesh and spiral, kinetic energy is dissipated, generating a damping effect; the fifth stage involves energy dissipation caused by the frictional compression deformation of the rubber damping ball at the upper end of the screw against the rubber damping pad at the end of the inner shell.

[0026] The present invention adopts a vertical inertia damping device and a horizontal inertia damping device. The damping device is provided with a spring, which can restore the device after energy dissipation is completed and external action is applied. No human intervention is required, the device has strong adaptability and low maintenance cost.

[0027] The present invention adopts piezoelectric energy capture technology to convert mechanical energy into electrical energy and store it in an electrical energy extraction and storage unit, and uses the electrical energy in electromagnetic damping to achieve energy self-sufficiency, making the device green and pollution-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation on this application.

[0029] Figure 1 This is a three-dimensional schematic diagram of the overall structure of Example 1 of the present invention;

[0030] Figure 2 This is a schematic top view of the overall structure of Example 1 of the present invention;

[0031] Figure 3 1 is a schematic structural diagram of a vertical inertia damping device according to embodiment 1 of the present invention;

[0032] Figure 4 3D schematic diagram of the electromagnetic inertia damper structure according to Example 1 of the present invention;

[0033] Figure 5 This is a schematic diagram of the battery power supply principle of embodiment 1 of the present invention;

[0034] In the figure: 1 reinforced angle steel, 2 inner L-shaped angle steel clamp, 3 reserved bolt hole, 4 outer L-shaped angle steel clamp, 5 horizontal ear plate, 6 horizontal damper fixing bolt, 7 horizontal inertia damping device, 8 vertical ear plate, 9 vertical damper fixing bolt, 10 vertical inertia damping device, 10-1 outer shell, 10-2 inner shell, 10-3 upper rubber damping pad, 10-4 rubber damping ball, 10-5 lower rubber damping pad, 10-6 screw rod, 10-7 first ball sleeve, 10-8 spring, 10-9 first end plate, 10-10 electromagnet, 10-11 second ball sleeve, 10-12 electromagnetic inertia damper, 10-13 ratchet, 10-14 viscous fluid, 10-15 circular aluminum plate, 10-16 third end plate, 10-17 compressed oil, 10-18 fourth end plate, 10-19 cavity, 10-20 piston plate, 10-21 spring, 10-22 sleeve, 10-23 reflux tank, 10-24 viscous liquid, 10-25 compression spiral buffer tube, 10-26 reflux spiral buffer tube, 10-27 damping net, 10-28 liquid storage tank, 10-29 adsorption switch, 10-30 hollow inductor, 10-31 excitation coil, 10-32 relay protection, 10-33 current sensor, 10-34 switch, 10-35 electromagnetic relay; 10-36 second end plate, 10-37 rotating cylinder. DETAILED DESCRIPTION

[0035] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, groups and / or combinations thereof;

[0037] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0038] Explanation of terms: The terms "install", "connect", "connect", "fix" and the like in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] The following describes the embodiments of the present invention in detail with reference to the technical solutions and the accompanying drawings.

[0040] like Figure 1As shown, this example provides a lossless performance improvement device for angle steel transmission towers based on multi-dimensional adaptive vibration control, including an outer L-shaped angle steel clamp 4 and an inner L-shaped angle steel clamp 2 for clamping and fixing the reinforced angle steel 1; wherein, three outer L-shaped angle steel clamps 4 and one inner L-shaped angle steel clamp 2 form a set of lossless performance improvement devices, and according to the length of the reinforced angle steel 1, multiple sets of lossless performance improvement devices can be set along the length direction of the reinforced angle steel 1; the lossless performance improvement device for angle steel transmission towers ensures the stiffness and strength of the transmission tower angle steel under external action, and improves its stability. It improves the bearing capacity of angle steel from multiple dimensions, and changes the singleness and limitations of traditional transmission tower reinforcement methods; the method of reinforcing angle steel uses multiple L-shaped angle steel clamps connected by bolts. This invention is flexible in assembly and can more effectively install the device on the reinforced angle steel. The installation method avoids the problem of weakening the angle steel by drilling or welding on the reinforced angle steel. This reinforcement method is efficient and fast, and the reinforcements are easy to install and lightweight, requiring no large lifting equipment or specialized installation tools. It is suitable for reinforcing transmission tower angle steel in a variety of environmental conditions. The present invention allows for factory-fabricated production tailored to the required reinforcement angle steel. A wide variety of accessories are compatible across different types of reinforcements, eliminating the need to individually design and adapt reinforcements for each component. Factory production and transportation, combined with on-site assembly and installation, are efficient and fast, reducing work time in exposed environments and facilitating emergency response.

[0041] The following is an example of a group:

[0042] Three outer L-shaped angle steel clamps 4 are installed on the outside of the designated installation position of the reinforced angle steel 1, and an inner L-shaped angle steel clamp 2 is placed on the inner side of the reinforced angle steel 1 at the corresponding position of the outer L-shaped angle steel clamp. Bolt holes 3 are set on the outer L-shaped angle steel clamp 4, and bolt holes 3 are also set on the inner L-shaped angle steel clamp 2; the two adjacent outer L-shaped angle steel clamps 4 and the adjacent outer L-shaped angle steel clamps 4 and the inner L-shaped angle steel clamps 2 are each connected by high-strength bolts, so that they are firmly connected to the reinforced angle steel 1.

[0043] Furthermore, the flange length of the inner L-shaped angle steel fixture 2 is the flange length of the outer L-shaped angle steel fixture 4 minus the wall thickness of the reinforced angle steel 1 .

[0044] Furthermore, the three outer L-shaped angle steel clamps 4 and the inner L-shaped angle steel clamp 2 have the same structure; each includes a first L-shaped angle steel and a second L-shaped angle steel; the first L-shaped angle steel and the second L-shaped angle steel are arranged up and down, and are connected by two vertical inertia damping devices 10, and two pairs of horizontal ear plates 5 are arranged at the flange of the first L-shaped angle steel, and each pair of horizontal ear plates 5 are connected by a horizontal inertia damping device 7; two pairs of horizontal ear plates 5 are also arranged at the flange of the second L-shaped angle steel; each pair of horizontal ear plates 5 are also connected by another two horizontal inertia damping devices 7; the horizontal inertia damping device 7 and the horizontal ear plates 5 are connected by fixing bolts 6.

[0045] As a further technical solution, the horizontal inertia damping devices 7 of the first L-shaped angle steel and the second L-shaped angle steel are vertically aligned, and the two horizontal inertia damping devices 7 on the first L-shaped angle steel are vertically located at the three-point point of the first L-shaped angle steel; the two horizontal inertia damping devices 7 on the second L-shaped angle steel are vertically located at the three-point point of the second L-shaped angle steel;

[0046] As a further technical solution, a vertical ear plate 8 is provided at the midpoint of the tip of the first L-shaped angle steel and the second L-shaped angle steel, and the vertical inertia damping device 10 is connected to the vertical ear plate 8 using a vertical damper fixing bolt 9, and an L-shaped angle steel clamp is connected to each end of the vertical inertia damping device 10.

[0047] Furthermore, the structures of the vertical inertia damping device 10 and the horizontal inertia damping device 7 are identical. The following describes the structures of the two devices by taking the vertical inertia damping device 10 as an example.

[0048] Further, such as Figure 3 As shown, the vertical inertia damping device 10 is enclosed by an outer shell 10-1 and an inner shell 10-2. The outer shell 10-1 is sealed at the lower end and open at the upper end. The inner shell 10-2 is sealed at both ends, with the lower end inserted into the open end of the outer shell 10-1. When the reinforced angle steel 1 is subjected to external forces, the external forces generate internal forces. Excessive internal forces reach the ultimate load of the reinforced angle steel 1, causing it to deform. The L-shaped angle steel clamp fixed to the reinforced angle steel 1 transmits the longitudinal deformation tendency to the vertical inertia damping device 10, causing relative axial displacement between the outer shell 10-1 and the inner shell 10-2.

[0049] A first damping system, a second damping system, a third damping system, a fourth damping system, and a fifth damping system are provided inside the outer shell 10 - 1 and the inner shell 10 - 2 . The five damping systems are described below.

[0050] Furthermore, a spring 10-8 is arranged between the bottom of the inner shell 10-2 and the first end plate 10-9 inside the outer shell 10-1; the inner shell 10-2 compresses or stretches the spring 10-8, and the spring 10-8 deforms to consume and absorb external energy, serving as the first damping system of the device; when the external force dissipates, the spring 10-8 can react to the inner shell 10-2 to restore the original length of the vertical inertia damping device 10.

[0051] Furthermore, a first ball sleeve 10-7 is provided at the lower end of the inner housing 10-2. As the inner housing 10-2 and the outer housing 10-1 move relative to each other, the balls of the first ball sleeve 10-7 roll on the screw rod 10-6, thereby driving the screw rod 10-6 to rotate around the center. One end of the screw rod 10-6 is inserted into the inner housing 10-2, and the other end passes through the electromagnetic inertia damper 10-12 and is connected to the third end plate 10-16.

[0052] Further, such as Figure 4 As shown, the electromagnetic inertia damper 10-12 includes a first end plate 10-9, a second end plate 10-36, a ratchet 10-13, and a rotating cylinder 10-37; the first end plate 10-9 and the second end plate 10-36 are fixed in the housing 10-1, and a second ball sleeve is installed in the center of the first end plate 10-9; a second ball sleeve is also installed in the center of the second end plate 10-36, and the second ball sleeve is rolled with the above-mentioned screw 10-6 to make the screw 10-6 move downward; the second ball sleeve can amplify the rotational inertia effect of the screw 10-6, The rotation of the rotating cylinder 10-37 is magnified, and the rotating cylinder 10-37 is fixedly connected to the second ball sleeve; a first cavity is formed between the first end plate 10-9 and the second end plate 10-36, and the viscous liquid 10-14 is filled in the first cavity. The outer surface of the rotating cylinder 10-37 is provided with ratchets 10-13 in positive and negative directions along the length direction; the ratchet 10-13 rotates under the drive of the rotating cylinder 10-37, and slows down and consumes energy under the viscous action of the viscous liquid 10-14, producing a damping effect, and the electromagnetic inertia damper 10-12 constitutes a second damping system.

[0053] Furthermore, the third damping system includes an electromagnet 10-10, a circular aluminum plate 10-15, a piezoelectric power generation unit, hydraulic oil 10-17, a third end plate 10-16, a fourth end plate 10-18, etc. Specifically, the electromagnet 10-10 and the circular aluminum plate 10-15 are respectively arranged on the lower side of the first end plate 10-9 and the upper side of the second end plate 10-36, the screw rod 10-6 is pushed toward the housing 10-1, and the lower end of the screw rod 10-6 is fixed on the third end plate 10-16 which can be sealed and slid along the inner wall of the housing 10-1, the third end plate 10-16 and the lower fourth end plate 10-18 form a second cavity, and the hydraulic oil 10-17 is filled into the second cavity; the piezoelectric power generation unit is installed on the upper surface of the fourth end plate 10-18; the piezoelectric power generation unit controls the magnetic strength of the electromagnet 10-10;

[0054] Furthermore, the piezoelectric power generation unit is composed of an adsorption switch 10-29, a hollow inductor 10-30, an excitation coil 10-31, a relay protector 10-32, a current sensor 10-33, a common switch 10-34, an electromagnetic relay 10-35 and a pressure sensor. For details, please refer to the existing piezoelectric power generation unit. The downward movement of the third end plate 10-16 to squeeze the hydraulic oil 10-17 will cause the pressure sensor to receive a pressure signal. As the pressure increases, the pressure of the piezoelectric power generation unit increases, and the pressure sensor will enhance the working efficiency of the power extraction and storage unit, thereby increasing the current value. When the current reaches a certain threshold, the electromagnetic relay 10-35 works. , close the adsorption switch 10-29; energize the excitation coil 10-31, and the excitation coil 10-31 is connected to the electromagnet 10-10; the magnetism of the electromagnet 10-10 increases; the magnetic flux lines generated by the electromagnet 10-10 pass through the circular aluminum plates 10-15 at both ends of the electromagnetic inertial damper 10-12, and the circular aluminum plates 10-15 cut the magnetic flux lines to generate induced current, thereby generating electromagnetic damping, further hindering the rotation of the electromagnetic inertial damper 10-12; that is, the present invention adopts piezoelectric energy capture technology to convert mechanical energy into electrical energy and store it in an electrical energy extraction and storage unit, and uses electrical energy in electromagnetic damping to achieve energy self-sufficiency, and the device is green and pollution-free.

[0055] Furthermore, a third cavity 10-19 is defined between the fourth end plate 10-18 and the piston plate 10-20 to provide a graded damping effect. As the fourth end plate 10-18 slides downward under pressure, the gas within the third cavity 10-19 is gradually compressed. When the external force is significant or the deformation of the reinforced angle steel 1 is significant, the pressure within the cavity 10-19 is sufficient to push the piston plate 10-20 into motion, and the fourth damping system of the present invention is activated.

[0056] Furthermore, the fourth damping system is a hydraulic inertia damper, which consists of a piston plate 10-20, a spring 10-21, a sleeve 10-22, a reflux tank 10-23, a viscous liquid 10-24, a compression spiral buffer tube 10-25, a reflux spiral buffer tube 10-26, a damping net 10-27, and a liquid storage tank 10-28; the piston plate 10-20 is restricted by the spring 10-21 during movement, the upper end of the spring 10-21 is fixed to the lower surface of the piston plate, and the lower end is fixed to the upper surface of the reflux tank 10-23; the spring 10-21 has the function of absorbing and dissipating energy and restoring the original structure after deformation of the device; the piston rod of the piston plate 10-20 is inserted into the sleeve 10-22, and the piston rod can slide in a sealed manner on the inner wall of the sleeve 10-22; the sleeve 10-22 is fixed in the reflux tank 10-23;

[0057] The lower end of the reflux tank is opened, and a compression spiral buffer tube and a reflux spiral buffer tube are respectively provided from the center outward. A damping net is provided inside the two buffer tubes. The two buffer tubes are connected to a liquid storage tank with a hole below. The reflux tank, buffer tube and liquid storage tank are filled with viscous liquid. Specifically, the compression spiral buffer tube 10-25 is sleeved inside the reflux spiral buffer tube 10-26; the upper end of the compression spiral buffer tube 10-25 is connected to the sleeve 10-22, and the lower end of the compression spiral buffer tube 10-25 is connected to the liquid storage tank 10-28; the upper end of the reflux spiral buffer tube 10-26 is connected to the reflux tank 10-23, and the lower end is connected to the liquid storage tank 10-28; a plurality of damping nets 10-27 are provided inside the tube bodies of the compression spiral buffer tube 10-25 and the reflux spiral buffer tube 10-26, so that the viscous liquid 10-24 can achieve the purpose of deceleration when flowing through the buffer tube;

[0058] When the vertical inertia damping device 10 is pressurized, the piston rod of the piston plate 10-20 is inserted into the sleeve 10-22, so that the viscous fluid 10-24 is squeezed, and a pressure difference is generated in the hydraulic inertia damper. The viscous fluid 10-24 flows from the compression spiral buffer tube 10-25 through the liquid storage tank 10-28 and the reflux spiral buffer tube 10-26 in sequence, and flows into the reflux tank 10-23;

[0059] When the vertical inertia damping device 10 is under tension, the piston plate 10-20 piston rod is sucked outward along the sleeve 10-22, so that the volume of the cavity in the sleeve 10-22 increases and the pressure decreases, and a pressure difference is generated in the hydraulic damper. The viscous liquid 10-24 flows from the reflux tank 10-23 through the reflux spiral buffer tube 10-26 and the liquid storage tank 10-28 in sequence, and flows into the 10-25 compression spiral buffer tube.

[0060] Furthermore, a fifth damping system is provided in the inner shell, and the fifth damping system includes a rubber damping ball 10-4, an upper rubber damping pad 10-3 or a lower rubber damping pad 10-5; an upper rubber damping pad 10-3 or a lower rubber damping pad 10-5 is provided on the inner wall of the end of the inner shell, and the inner shell is filled with damping balls 10-4; when the external force is large or the reinforced angle steel 1 is severely deformed, the electromagnetic inertial damping device is compressed or stretched to the limit state, and the rubber damping ball 10-4 and the upper rubber damping pad 10-3 or the lower rubber damping pad 10-5 at both ends of the inner shell 10-2 produce friction and extrusion, thereby causing the device to further produce a damping effect, thereby realizing the dissipation and absorption of energy and limiting the device.

[0061] The vertical and horizontal inertia damping devices employed in this invention differ from traditional piston dampers in their ability to more effectively adjust vibration characteristics and feature inertia amplification, effectively reducing the vibration response of the structure. The relatively low mass of this invention facilitates construction and installation, reducing building space requirements. The vertical and horizontal inertia damping devices can provide a graded response based on the magnitude of the external force and the degree of deformation of the transmission tower angle steel. This invention utilizes a five-stage damping system for varying degrees of damage. The first-stage damping system is spring tension or compression damping; the second-stage damping system is the rotational damping of the ratchet on the electromagnetic inertial damper around the screw axis in the viscous fluid; the third-stage damping system is the damping force generated by the magnetic flux lines generated by the excitation coil of the circular aluminum plate cut piezoelectric generating unit of the electromagnetic inertial damper under the action of increased pressure, which hinders relative motion; the fourth-stage is the piston plate squeezing or expanding the viscous fluid, causing it to flow in the reflux tank, compression spiral buffer tube, reflux spiral buffer tube, and liquid storage tank. When the viscous fluid flows through the damping net and the spiral, the kinetic energy is dissipated, generating a damping effect; the fifth-stage damping is the energy dissipation effect generated by the friction, compression and deformation of the rubber damping ball at the upper end of the screw against the rubber damping pad at the end of the inner shell. The present invention adopts a vertical inertial damping device and a horizontal inertial damping device. The damping device is equipped with a spring, whose function is to restore the device after energy dissipation is completed and the external force is applied. It does not require manual intervention, has strong adaptability, and low maintenance cost.

[0062] The above-mentioned implementation scheme of this patent is not intended to limit the scope of protection of the present invention, and the implementation scheme of this patent is not limited to this. All other forms of modifications, replacements or changes made to the above-mentioned structure of this patent based on the above-mentioned content of this patent, in accordance with the common technical knowledge and customary means in this field, without departing from the above-mentioned basic technical ideas of this patent, should fall within the scope of protection of this patent.

Claims

1. A device for improving the performance of angle steel transmission towers without loss of performance based on multi-dimensional adaptive vibration control, characterized in that: The utility model comprises three outer L-shaped angle steel clamps with the same structure and one inner L-shaped angle steel clamp, each comprising a first L-shaped angle steel and a second L-shaped angle steel, the first L-shaped angle steel and the second L-shaped angle steel are arranged up and down, and are connected by a vertical inertia damping device, and the flange of the first L-shaped angle steel and the flange of the second L-shaped angle steel are connected by a horizontal inertia damping device, the vertical inertia damping device and the horizontal inertia damping device each comprise an outer shell and an inner shell, one end of the outer shell is sealed and the other end is open, the two ends of the inner shell are sealed and the first end is inserted into the open end of the outer shell; a first spring is arranged between the first end of the inner shell and the first end plate inside the outer shell; a first ball sleeve is arranged at the first end of the inner shell; one end of the screw rod is inserted into the inner shell, and the other end cooperates with the first ball sleeve, and passes through the spring, the electromagnetic inertia damper and the third end The plates are connected; the electromagnetic inertia damper includes a first end plate, a second end plate, a ratchet, and a rotating cylinder; the first end plate and the second end plate are fixed in the shell, and a second ball sleeve is installed in the center of the first end plate and the second end plate, and the second ball sleeve is rolled with the screw rod through the second ball sleeve, and the two ends of the rotating cylinder are connected to the second ball sleeve, a first cavity is formed between the first end plate and the second end plate, and the first end plate and the second end plate are filled with viscous liquid, and the outer surface of the rotating cylinder is provided with ratchets in positive and negative directions; the third end plate and the fourth end plate installed inside the shell form a second cavity, and the second cavity is filled with hydraulic oil. A piezoelectric power generation unit is installed on the upper surface of the fourth end plate, and the piezoelectric power generation unit hinders the rotation of the electromagnetic inertia damper; a third cavity is formed between the fourth end plate and the piston plate, and the piston plate is connected to the fourth damping system; The fourth damping system includes a second spring, a sleeve, a reflux tank, a viscous liquid, a compression spiral buffer tube, a reflux spiral buffer tube, a liquid storage tank and a piston plate; the upper end of the second spring is fixed to the lower surface of the piston plate, and the lower end is fixed to the upper surface of the reflux tank body; the piston rod of the piston plate is inserted into the sleeve, and the piston rod can slide in a sealed manner on the inner wall of the sleeve; the sleeve is fixed in the reflux tank; the compression spiral buffer tube is sleeved inside the reflux spiral buffer tube; the upper end of the compression spiral buffer tube is connected to the sleeve, and the lower end of the compression spiral buffer tube is connected to the liquid storage tank; the upper end of the reflux spiral buffer tube is connected to the reflux tank, and the lower end is connected to the liquid storage tank.

2. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: The three outer L-shaped angle steel clamps and the one inner L-shaped angle steel clamp form a set of non-destructive performance improvement devices, and multiple sets of non-destructive performance improvement devices can be set along the length direction of the reinforced angle steel.

3. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 2, characterized in that: The three outer L-shaped angle steel clamps are installed on the outer side of the reinforced angle steel, and the inner L-shaped angle steel clamp is installed on the inner side of the reinforced angle steel. The adjacent two outer L-shaped angle steel clamps and the adjacent outer L-shaped angle steel clamps and the inner L-shaped angle steel clamps are each connected by bolts.

4. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: An electromagnet and a circular aluminum plate are respectively provided on the opposite surfaces of the first end plate and the second end plate.

5. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: The piezoelectric power generation unit controls the magnetic force of the electromagnet.

6. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: The third cavity is filled with compressible gas.

7. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: A plurality of damping nets are arranged inside the tube bodies of the compression spiral buffer tube and the return spiral buffer tube.

8. The device for improving the non-destructive performance of angle steel transmission towers based on multi-dimensional adaptive vibration control according to claim 1, characterized in that: A rubber damping ball is also arranged inside the inner shell, and rubber damping pads are arranged on the inner walls at both ends of the inner shell.

Images