A broadband intelligent vibration damper for transmission lines and its optimization design method

Abstract

The present invention belongs to the technical field of transmission line disaster prevention and control equipment, and particularly relates to a broadband intelligent vibration damper for transmission lines and an optimized design method thereof. The vibration damper includes a clamp, a cluster of steel strands, and a vibration-absorbing hammer head. The clamp is connected to the middle of the cluster of steel strands, and a vibration-absorbing hammer head is provided at each end of the cluster of steel strands; the vibration-absorbing hammer head includes a hammer head, a groove is provided at one end of the hammer head, the inner bottom wall of the groove is connected to the cluster of steel strands, and a bending energy dissipator is provided between the cluster of steel strands and the inner side wall of the groove; one end of the bending energy dissipator is connected to the cluster of steel strands through a fixing device, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device. The present invention can adapt to different vibration frequencies and different environmental conditions. In addition, even if the swinging direction of the hammer head is inclined, it does not affect the bending and stretching of the bending energy dissipator, that is, it does not affect its vibration damping effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of transmission line disaster prevention and control equipment, specifically to the technical field of vibration dampers, and particularly relates to a broadband intelligent vibration damper for transmission lines and its optimized design method. Background Technique

[0002] Transmission lines are a core component of modern power systems, featuring a large-span and highly flexible structure. This design allows transmission lines to span long distances, but it also makes them vulnerable to external environmental impacts. For example, when wind loads continuously act on the conductor, the conductor will generate high-frequency vibrations, which cause slight bending deformation at the conductor suspension point. This repeated bending and deformation will lead to fatigue damage of the conductor over time, gradually weakening the structural integrity and load-bearing capacity of the conductor, thus shortening its service life.

[0003] According to the causes and forms of conductor vibrations, conductor vibrations can be classified into: aeolian vibration, sub-span vibration, galloping, de-icing jump, transverse magnetic corona galloping, short-circuit vibration, turbulent vibration, etc. Among these types of vibrations, aeolian vibration and galloping have a particularly prominent impact on equipment safety. Aeolian vibration is a phenomenon of resonance caused by the impact frequency of aerodynamic forces being equal to a natural frequency of the tensioned conductor in the span. Since the necessary conditions for generating vibration are the uniformity of the air flow and the constancy of its direction. When the energy given by the wind to the conductor is large enough, the vibration of the conductor can be maintained. This minimum wind speed value is called the lower limit value, generally taken as 0.5 m / s. The maximum wind speed at which the conductor can still vibrate as the wind speed increases is called the upper limit value. Generally, the upper limit value of the wind speed is 4 - 7 m / s. When it exceeds the upper limit value, the conductor can no longer generate vibration.

[0004] For high-voltage level lines, the erection height is relatively high. At this time, the air flow in the conductor and ground wire plane is less affected by the ground wire, and aeolian vibration is more likely to occur; the greater the erection tension, the more serious the damage to the conductor and ground wire caused by vibration.

[0005] To address this problem, vibration dampers, as a key auxiliary device, are widely used in conductor systems. By absorbing the vibration energy of the conductor, vibration dampers can effectively reduce the amplitude of conductor vibration, thus significantly extending the service life of the conductor. The structure of a vibration damper usually includes a weight with a certain mass, a steel strand with high elasticity and high strength, and a clamp. The vibration damper is usually suspended on the conductors on both sides of the insulator near the overhead line and fixed to the conductor through the clamp. After the vibration damper is installed, it can generate a movement with a phase opposite to that of the conductor vibration, thereby eliminating or weakening the conductor vibration.

[0006] The specific working principle of the vibration damper is as follows: when the overhead line vibrates due to factors such as wind force, the vibration damper moves up and down. Utilizing the inertia of the heavy hammer, internal friction is generated in its steel strand to consume most of the vibration energy of the overhead line. The damping of the air on the heavy hammer consumes part of the energy, and part of the energy is consumed and reflected at the clamp of the vibration damper wire. Then, according to the principle of energy balance, the energy consumption of the vibration damper reduces the intensity of the wind vibration.

[0007] Different conductor specifications and spans will cause different vibration frequencies, and the changes in these frequencies will affect the effect of the vibration damper. Due to differences in structure, weight, and size, various vibration dampers have certain natural frequencies, and the natural frequencies are different. For example, the following several types:

[0008] For the Stockbridge type vibration damper, a cylindrical heavy hammer made of pig iron is fixed at both ends of a high-strength steel strand, and a pair of splints is riveted in the middle of the steel strand to install the vibration damper on the conductor. According to the structural dimensions of the heavy hammer, it has two natural frequencies.

[0009] For the multi-frequency vibration damper, hammers with different masses are used at both ends of the steel strand, and the suspension points are not of equal length from both ends of the steel strand. With this structure, four natural frequencies can be obtained, and the applicable frequency range is relatively wide. The heavy hammer is a U-shaped structure made of pig iron to prevent the hammer head from rubbing against the steel strand during high-frequency vibration.

[0010] Although the above vibration dampers have multiple natural frequencies, during the use process, due to the continuous change of vibration characteristics, the vibration damping effect of the vibration damper is sometimes strong and sometimes weak, and the best vibration damping effect cannot be achieved.

[0011] In the prior art, in order to enhance the anti-vibration effect of the anti-vibration hammer, improvements have been made from multiple aspects. For example, the prior art CN105337235B discloses an electromagnetic shock-absorbing type intelligent anti-vibration hammer, which includes a vibration detection head installed at the front of the power transmission line and an intelligent anti-vibration head installed at the rear of the power transmission line; the vibration detection head includes a hoop and at least two acceleration sensors installed inside the hoop; the intelligent anti-vibration head includes a hoop base and an annular vibration assembly installed around the front of the hoop base; the outer layer of the annular vibration assembly is an annular encapsulation shell, and electromagnetic oscillators with the same number as the number of acceleration sensor groups are evenly installed in the circumferential direction inside the annular encapsulation shell; an electromagnetic coil is installed at the outer end of each electromagnetic oscillator, and the inner end is installed on a magnetic ring; a guide tube is installed between the magnetic ring and the electromagnetic coil; a cylindrical magnet mover that is adsorbed and matched with the magnetic ring is slidably connected inside the guide tube. The acceleration sensors of this anti-vibration hammer are characterized by small size and light weight, can measure spatial acceleration, and are used in multiple groups to comprehensively reflect the motion properties of the power transmission line, that is, the vibration conditions of the power transmission line as much as possible, so as to provide real-time data for the processor. When the acceleration sensors detect the initial acceleration direction of the power transmission line vibration, the signal is transmitted to the processor for processing, so as to control the on-off of the electromagnetic coil of the electromagnetic oscillator, make the magnetic force generated by the electromagnetic coil greater than the adsorption force of the magnetic ring, and adsorb the cylindrical magnet mover; the movement of the cylindrical magnet mover causes the electromagnetic coil to receive an instantaneous reaction force, and this reaction force causes the annular vibration assembly to generate a movement in the opposite direction to the vibration direction; based on the principle that the vibration phases of the annular vibration assembly and the power transmission line are opposite and cancel each other out, the purpose of reducing vibration is achieved.

[0012] However, the above anti-vibration hammer requires electrical energy, which is powered by a solar panel. There is a risk of power failure in rainy weather, at night, etc., and the solar panel also needs to be maintained, which increases the maintenance difficulty for overhead lines.

[0013] In addition, the prior art CN112952710A discloses an intelligent conductor anti-vibration hammer, which includes a main control unit that detects the vibration frequency and amplitude of the conductor and outputs a signal, and a mechanical vibration tuning unit that is electrically connected to the main control unit and is controlled by the output signal of the main control unit to reduce the vibration amplitude of the conductor. The mechanical vibration tuning unit includes a housing connected to the conductor. Damping elastic rods are provided on both opposite sides of the housing. The two damping elastic rods are parallel to each other. The damping elastic rods have good elasticity. A hammer body is provided at the end of the damping elastic rod away from the housing. A resonance frequency adjustment nut moves along the length direction of the damping elastic rod, and then the fixture between the hammer body and the frequency adjustment block changes, so that the length of the part of the damping elastic rod that can vibrate together with the conductor changes, so that the vibration of the hammer body can better adapt to different vibration frequencies within a certain range of the conductor, and then better achieve the effect of preventing the conductor from vibrating.

[0014] Similarly, this anti-vibration hammer is also powered by a solar power supply device, which has the risks of being unable to supply power during rainy days, at night, etc., and the problem of difficult maintenance.

[0015] In addition, the prior art CN216290112U discloses an adjustable anti-vibration hammer for high-voltage transmission lines, including: a central fixed seat, a vertical screw rod is vertically arranged inside the central fixed seat, and vertical guide rods are symmetrically and parallelly arranged on the left and right sides of the vertical screw rod; a fixed hanging buckle is arranged above the central fixed seat, and a fixed pressing buckle is arranged in the middle of the fixed hanging buckle. This anti-vibration hammer can be fixed on the required transmission line through the fixed hanging buckle on the central fixed seat, and rigid extension rods are symmetrically arranged on the left and right sides of the central fixed seat, and a counterweight body is separately nested on each side of the rigid extension rod. When the transmission line vibrates, it drives the counterweight body and the rigid extension rod to vibrate synchronously, and the inner end of the rigid extension rod is connected to the central adjusting frame through a telescopic sleeve to drive it to move up and down, so as to buffer and absorb the vibration energy through the buffer springs symmetrically arranged up and down by the central adjusting frame, so as to reduce the vibration of the transmission line and achieve the anti-vibration effect. And the pressing adjustment frame arranged outside the buffer spring can move and adjust the distance to adjust the compression degree and elasticity of the buffer spring, and then adjust the overall buffer vibration amplitude and strength, so as to be adjusted according to the needs of different transmission lines and be more flexible and convenient to use.

[0016] However, the above anti-vibration hammer uses the guide rod to limit the movement of the hammer head to only up and down movement. If the swinging direction of the hammer head is slightly inclined, it may cause its movement to be unsmooth and weaken its anti-vibration effect.

[0017] Furthermore, the selection and installation of the current anti-vibration hammer mainly rely on the experience of engineers and lack systematic theoretical support. When selecting the installation position, counterweight, and energy-consuming frequency of the anti-vibration hammer, there is usually no clear calculation basis, which also makes it difficult for the traditional design scheme to achieve the best anti-vibration effect. Summary of the Invention

[0018] The technical problem solved by the present invention is that the anti-vibration hammers in the prior art cannot adapt to different vibration frequencies and different environmental conditions.

[0019] To solve the above technical problem, the present invention provides a broadband intelligent anti-vibration hammer for transmission lines and its optimized design method. It maximally exerts the energy absorption and vibration reduction effect of the anti-vibration hammer, fully extends the service life of the wire, and provides a reference for the design and installation of the anti-vibration hammer for transmission wires.

[0020] To achieve the above object, the technical solution of the present invention is as follows:

[0021] In a first aspect, the present invention provides a broadband intelligent vibration damper for a transmission line, which includes a clamp, a steel strand cluster, and a vibration absorption hammer head. The clamp is connected to the middle of the steel strand cluster, and a vibration absorption hammer head is provided at each end of the steel strand cluster. The vibration absorption hammer head includes a hammer head, a groove is provided at one end of the hammer head, the inner bottom wall of the groove is connected to the steel strand cluster, and a bending energy dissipator is provided between the steel strand cluster and the inner side wall of the groove. One end of the bending energy dissipator is connected to the steel strand cluster through a fixing device, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head through an adjusting device. The bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0022] A bending energy dissipator is provided inside the hammer head. The bending energy dissipator is in a bent shape. During the swinging process of the hammer head, the vibration energy of the wire transmitted by the steel strand can be absorbed through the inward bending and outward stretching of the bending energy dissipator, achieving the vibration damping effect.

[0023] The bending degree of the bending energy dissipator is adjusted through the adjusting device, and then the vibration frequency of the bending energy dissipator is adjusted, so that the vibration absorption hammer head has more resonance frequencies and a wider vibration damping frequency band, and has a better vibration absorption and vibration suppression effect.

[0024] The wire is clamped by the clamp, and then the vibration damper is installed on the wire. When the wire has aeolian vibration, the clamp can transmit the vibration energy to the steel strand cluster and the vibration absorption hammer head. Through the friction, bending of the steel strand cluster, and the swinging, bending, and friction of the vibration absorption hammer head, energy dissipation and vibration damping are achieved.

[0025] In some embodiments, the bending energy dissipator includes an outer spring steel plate. One end of the outer spring steel plate is connected to the steel strand cluster through a fixing device, and the other end of the outer spring steel plate is connected to the inner side wall of the groove of the hammer head through an adjusting device. The outer spring steel plate is in a bent shape.

[0026] In some embodiments, the bending energy dissipator further includes an inner spring steel plate, and the inner spring steel plate is arranged inside the outer spring steel plate.

[0027] In some embodiments, a friction layer is provided between the outer spring steel plate and the inner spring steel plate.

[0028] In some embodiments, the friction layer is a steel sheet.

[0029] In some embodiments, the inner surface of the friction layer is a rough surface, and / or the outer surface of the friction layer is a rough surface.

[0030] In some embodiments, the friction coefficient of the inner surface of the friction layer is 0.35 - 0.45, and / or the friction coefficient of the outer surface of the friction layer is 0.4 - 0.5.

[0031] In some embodiments, the bending energy dissipator further includes a first limiter, and the first limiter is disposed inside the end of the outer spring steel plate connecting the adjusting device.

[0032] In some embodiments, the bending energy dissipator further includes a second limiter, and the second limiter is disposed inside the connection between the outer spring steel plate and the fixing device.

[0033] In some embodiments, the fixing device is a connection block.

[0034] In some embodiments, the bending energy dissipator is rigidly connected to the fixing device.

[0035] In some embodiments, the adjusting device includes an adjusting bolt and an adjusting nut. The adjusting bolt is disposed on the inner side wall of the groove of the hammer head, and one end of the bending energy dissipator is inserted through the adjusting bolt; the adjusting nut is disposed on the adjusting bolt, and the adjusting nut is located between the end of the bending energy dissipator and the inner side wall of the groove.

[0036] In some embodiments, the adjusting device further includes an adjusting spring. The adjusting spring is inserted through the adjusting bolt, and one end of the adjusting spring abuts against the inner side wall of the groove, and the other end of the adjusting spring abuts against the adjusting nut.

[0037] In some embodiments, the adjusting device further includes a protective nut, and the protective nut is disposed outside the end of the bending energy dissipator.

[0038] In some embodiments, a counterweight groove is provided on the outer wall of the hammer head. The counterweight can be increased through the counterweight groove to adjust the weight of the hammer head.

[0039] In some embodiments, the vibration-absorbing hammer head further includes a spherical hinge, and the spherical hinge is disposed on the bottom wall of the groove for connecting with a cluster of steel strands.

[0040] In some embodiments, the number of the bending energy dissipators is 2, and the two bending energy dissipators are symmetrically disposed on both sides of the steel strand.

[0041] In some embodiments, the hammer head is cylindrical, and the groove is disposed along the axis of the hammer head.

[0042] In some embodiments, the end of the hammer head away from the groove is a spherical arc surface.

[0043] In some embodiments, a micro acceleration sensor is disposed at the top of the spherical arc surface at the end of the hammer head away from the groove.

[0044] In some embodiments, the acceleration sensor uses MEMS (Micro-Electro-Mechanical System) technology for self-power supply and does not require an external power source.

[0045] In some embodiments, the acceleration sensor signal can be transmitted by a wireless communication module installed on the transmission tower, and the wireless transmission module is powered by a solar panel.

[0046] In some embodiments, the steel strand cluster includes upper steel strands, and the upper steel strands are connected to the vibration absorption hammer head.

[0047] In some embodiments, the upper steel strands are connected to the vibration absorption hammer head by spherical hinges.

[0048] In some embodiments, the number of the upper steel strands is 2, and the two upper steel strands are arranged horizontally in parallel.

[0049] In some embodiments, the steel strand cluster further includes lower steel strands and steel wires. The lower steel strands are arranged below the upper steel strands, and both ends of the lower steel strands are free ends; the steel wires are wound outside the lower steel strands and the upper steel strands.

[0050] In some embodiments, the lower steel strands and the two upper steel strands form an inverted triangular structure.

[0051] In some embodiments, the length of the lower steel strands is less than the length of the upper steel strands.

[0052] In some embodiments, the wire clamp includes an annular tentacle, an independent tentacle, and a conductor. The bottom end of the conductor is connected to the middle part of the steel strand cluster, the upper end of the conductor is connected to the annular tentacle, the annular tentacle is detachably connected to the independent tentacle, and a wire is arranged between the annular tentacle and the independent tentacle.

[0053] In some embodiments, the annular tentacle includes a first clamping jaw above and a first connecting plate arranged below the first clamping jaw. The first clamping jaw is used for clamping the wire, and the first connecting plate is connected to the conductor.

[0054] In some embodiments, the cross-section of the first clamping jaw is a semi-circular ring.

[0055] In some embodiments, the first connecting plate is an inverted trapezoid.

[0056] In some embodiments, the independent tentacle includes a second clamping jaw above and a second connecting plate arranged below the second clamping jaw. The second clamping jaw is used for clamping the wire, and the second connecting plate is detachably connected to the first connecting plate.

[0057] In some embodiments, through holes are provided on both the first connecting plate and the second connecting plate, and fastening bolts are inserted through the through holes. The first connecting plate and the second connecting plate are detachably connected by the fastening bolts.

[0058] In some embodiments, a lever block is provided at the bottom between the first connecting plate and the second connecting plate.

[0059] In some embodiments, the lever block is welded to the first connecting plate.

[0060] In some embodiments, the conductor includes a transition block and a stranded steel block provided below the transition block. The upper part of the transition block is connected to the annular tentacle. A through hole is provided inside the stranded steel block, and the stranded steel block is fixedly connected to the steel strand cluster through the through hole inside it.

[0061] In some embodiments, when the vibration damping hammer is installed on the wire, the posture of the vibration absorption hammer head is such that the bending energy dissipators on both sides of the steel strand cluster are arranged vertically.

[0062] Compared with the prior art, the vibration damping hammer provided by the present invention has the following beneficial effects:

[0063] 1. The broadband intelligent vibration damping hammer provided by the present invention, by arranging a bending energy dissipator inside the hammer head, one end of the bending energy dissipator is connected to the steel strand, and the other end is connected to the hammer head through an adjusting device. During the swinging process of the hammer head, the bending energy dissipator is continuously compressed and stretched, achieving the purpose of vibration absorption and energy dissipation. Through the adjusting device, the bending degree of the bending energy dissipator can be adjusted, realizing the free adjustment of the frequency of the bending energy dissipator, so that the vibration absorption hammer head can adapt to different vibration frequencies and different environmental conditions. In addition, there is no special limitation on the stretching direction of the bending energy dissipator. Even if the swinging direction of the hammer head is inclined, it does not affect the bending and stretching of the bending energy dissipator, that is, it does not affect its vibration damping effect. The acceleration sensor can monitor the vibration condition of the hammer head and can indirectly monitor the load-bearing state of the wire.

[0064] 2. The broadband intelligent vibration damping hammer provided by the present invention, the bending energy dissipator provided inside it is designed as an outer spring steel plate and an inner spring steel plate. When the outer spring steel plate is continuously bent, it drives the inner spring steel plate to continuously stagger to achieve frictional energy dissipation.

[0065] 3. The broadband intelligent vibration damping hammer provided by the present invention, a friction layer is provided between the outer spring steel plate and the inner spring steel plate to increase the friction area; in addition, the surface of the friction layer is a rough surface, further increasing the friction force and improving the friction energy dissipation efficiency.

[0066] 4. In the broadband intelligent vibration damping hammer provided by the present invention, an adjusting spring is arranged between the adjusting nut and the inner side wall of the groove. The resilience of the adjusting spring is used to squeeze the adjusting nut to prevent the adjusting nut from loosening, thereby avoiding the change of frequency during the use of the vibration absorption hammer head and effectively ensuring the continuous and stable vibration damping effect.

[0067] 5. In the broadband intelligent vibration damping hammer provided by the present invention, a counterweight groove is arranged on the outer wall of the hammer head, which can increase the counterweight according to needs and provide more options for the adjustment of frequency.

[0068] 6. In the broadband intelligent vibration damping hammer provided by the present invention, the wire clamp is used to clamp the wire, and then the vibration damping hammer is installed on the wire. A cluster of steel strands is connected below the wire clamp, and the vibration absorption hammer heads provided by the present invention are arranged on both sides of the cluster of steel strands. By using the characteristic that the vibration absorption hammer head can freely adjust the frequency, the vibration damping hammer provided by the present invention can be applied to wires with different vibration frequencies and different environmental conditions.

[0069] 7. In the broadband intelligent vibration damping hammer provided by the present invention, the cluster of steel strands is used to connect the wire clamp and the vibration absorption hammer head. The cluster of steel strands includes two upper steel strands and one lower steel strand. During the vibration of the wire, the steel strands rub against each other. By using the principle of friction energy dissipation, the vibration damping and anti-vibration effect of the vibration damping hammer is further enhanced. In addition, the cluster of steel strands in the present invention increases the friction area and adjustability between the steel strands. The increase of the friction area provides a more powerful energy dissipation ability. At the same time, both ends of the lower steel strand are free ends, which is convenient for replacing the lower steel strand without disassembling the hammer head, thereby providing greater convenience and operability for the frequency adjustment of the vibration damping hammer; it is also beneficial to the maintenance of the vibration damping hammer.

[0070] 8. In the broadband intelligent vibration damping hammer provided by the present invention, the wire clamp includes a ring-shaped tentacle and an independent tentacle, and a lever block is arranged between the ring-shaped tentacle and the independent tentacle. By using the lever block, a certain gap is formed between the ring-shaped tentacle and the independent tentacle, and then the ring-shaped tentacle and the independent tentacle are fastened by a fastening bolt. Thus, the ring-shaped tentacle can firmly grasp the wire clamp and generate a pre-tightening force to effectively transmit the vibration energy, and still be able to tightly hold the wire when the diameter of the wire is weakened.

[0071] In the second aspect, the present invention also provides an optimization design method for a broadband intelligent vibration damping hammer, which optimizes the above-mentioned broadband intelligent vibration damping hammer, including:

[0072] S1. Measure the vibration angle and the maximum vibration frequency ;

[0073] S2. Set the frequency of one of the vibration absorption hammer heads as the first set value, the frequency of the other vibration absorption hammer head as the second set value, and the overall frequency of the vibration damping hammer without considering the vibration of the vibration absorption hammer head as the third set value;

[0074] S3. After installing the vibration damper, measure the vibration angle at the wire suspension point again. After the vibration angle measured again is less than the allowable vibration angle, the installation is completed; when the maximum vibration angle exceeds the allowable vibration angle, additional weights should be added and the frequency of the vibration damper should be kept unchanged, and then measure again until the maximum vibration angle is less than the allowable vibration angle, and the installation is completed.

[0075] In some embodiments, the vibration angle is:

[0076] ;

[0077] In the above formula, is the vibration wave wavelength, is the amplitude of the vibration wave at the measurement point, is the distance between the measurement point and the entrance of the wire clamp.

[0078] In some embodiments, the maximum vibration frequency is:

[0079] ;

[0080] In the formula, is the stiffness of the wire system, is the mass of the wire.

[0081] In some embodiments, the first set value is 0.1 .

[0082] In some embodiments, the second set value is 0.5 .

[0083] In some embodiments, the third set value is 0.8 .

[0084] In some embodiments, when measuring the vibration angle at the wire suspension point again, it specifically includes: after installing the vibration damper, measure the vibration angle at least once, and take the maximum value as the vibration angle measured again.

[0085] In some embodiments, the allowable vibration angle is 10'.

[0086] In some embodiments, when adding weights and keeping the frequency of the vibration damper unchanged in step S3, the specific method is: the mass of each weight block is 50 g, add one weight block at a time, and adjust the position of the adjusting nut after adding the weight to ensure that the frequency of the vibration damper remains unchanged.

[0087] Compared with the prior art, the vibration damper optimization design method provided by the present invention has the following beneficial effects:

[0088] The optimized design method of the broadband intelligent vibration damping hammer provided by the present invention first measures the maximum vibration frequency and vibration angle of the wire near the wire suspension point, and adjusts the natural vibration frequencies of the two vibration absorption hammer heads and the whole vibration damping hammer to , and ; then, after keeping the frequency of the vibration damping hammer unchanged according to the counterweight, the vibration angle is measured again to ensure that the maximum vibration angle is less than the allowable vibration angle, so as to maximize the vibration damping and energy absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art.

[0090] Figure 1 Schematic structural diagram of the vibration absorption hammer head according to some embodiments.

[0091] Figure 2 Schematic structural diagram of the bending energy dissipator according to some embodiments.

[0092] Figure 3 3D structural schematic diagram of the vibration damping hammer according to some embodiments.

[0093] Figure 4 Front view of the vibration damping hammer according to some embodiments, in which a part of the annular tentacles is cut away for easy display of the independent tentacles.

[0094] Figure 5 Schematic cross-sectional diagram of the steel strand cluster according to some embodiments.

[0095] Description of the reference numerals:

[0096] 1. Clamp;

[0097] 1-1. Annular tentacle; 1-2. Independent tentacle; 1-3. Tightening bolt; 1-4. Lever block; 1-5. Conductor;

[0098] 2. Steel strand cluster;

[0099] 2-1. Upper steel strand; 2-2. Lower steel strand; 2-3. Steel wire;

[0100] 3. Vibration absorption hammer head;

[0101] 3-1. Hammer head; 3-2. Counterweight groove; 3-3. Ball hinge; 3-4. Fixing device; 3-5. Adjusting bolt; 3-6. Outer spring steel plate; 3-7. Adjusting nut; 3-8. Protection nut; 3-9. Second limiter; 3-10. Friction layer; 3-11. Inner spring steel plate, 3-12. Adjusting spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0102] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0103] It should be noted that unless otherwise specifically stated, the relative arrangements and numerical expressions of the components and steps described in these embodiments should not be construed as limiting the scope of the present invention.

[0104] The following description of the exemplary embodiments is merely illustrative and in no way restricts the present invention and its application or use. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail here, but when applicable, these technologies, methods, and devices should be regarded as part of this specification.

[0105] 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 forms are also intended to include the plural forms. 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, components, and / or their combinations.

[0106] For the convenience of narration, if terms such as "upper", "lower", "left", and "right" appear in the present invention, they only indicate the same directions as the upper, lower, left, and right of the accompanying drawings themselves, and do not limit the structure. They are only for facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0107] Term explanation section: Terms such as "installation", "connection", "connection", and "fixation" in the present invention should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection, a direct connection, or an indirect connection through an intermediate medium, an internal connection between two elements, or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0108] Wideband intelligent vibration damping hammer

[0109] Embodiment 1

[0110] This embodiment provides a broadband intelligent vibration damper for transmission lines, as shown in Figure 3 and Figure 4 shown, including a wire clamp 1, a steel strand cluster 2 and a vibration absorption hammer head 3. The wire clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration absorption hammer head 3 is provided at each end of the steel strand cluster 2. The structure of the vibration absorption hammer head 3 is as shown in Figure 1 shown, including a hammer head 3-1. A groove is provided at one end of the hammer head 3-1. The inner bottom wall of the groove is connected to the steel strand cluster 2, and a bending energy dissipator is provided between the steel strand cluster 2 and the inner side wall of the groove. One end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0111] A bending energy dissipator is provided inside the hammer head 3-1. The bending energy dissipator is in a bent shape. During the swinging process of the hammer head 3-1, the vibration energy of the wire transmitted by the steel strand can be absorbed through the inward bending and outward stretching of the bending energy dissipator, achieving the vibration damping effect.

[0112] The bending degree of the bending energy dissipator is adjusted through the adjusting device, and then the vibration frequency of the bending energy dissipator is adjusted, so that the vibration absorption hammer head has more resonance frequencies and a wider vibration damping frequency band, and has a better vibration absorption and vibration suppression effect.

[0113] Among them, the groove refers to a groove recessed on the surface of one end of the hammer head 3-1. The shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces. The inner bottom wall of the groove refers to the wall surface that is not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface that is connected to the surface of the hammer head 3-1.

[0114] In addition, it can be understood that the steel strand cluster 2 can also be replaced by a steel strand or other connecting components for connecting the wire clamp and the vibration absorption hammer head, such as a wire rope, etc. The equivalent replacement of the steel strand cluster 2 still belongs to the protection scope of this embodiment.

[0115] The wire is clamped by the wire clamp 1, and then the vibration damper is installed on the wire. When the wire has micro-vibration, the wire clamp 1 can transfer the vibration energy to the steel strand cluster 2 and the vibration absorption hammer head 3. Through the friction, bending of the steel strand cluster 2, and the swinging, bending, friction, etc. of the vibration absorption hammer head 3, energy dissipation and vibration damping are realized.

[0116] Embodiment Two

[0117] This embodiment provides a broadband intelligent vibration damper for transmission lines, as shown in Figure 3 and Figure 4As shown, it includes a wire clamp 1, a stranded steel wire cluster 2, and a vibration damping hammer head 3. The wire clamp 1 is connected to the middle of the stranded steel wire cluster 2, and a vibration damping hammer head 3 is respectively arranged at both ends of the stranded steel wire cluster 2; the structure of the vibration damping hammer head 3 is as shown in Figure 1 shown, including a hammer head 3-1. A groove is arranged at one end of the hammer head 3-1, and the inner bottom wall of the groove is connected to the stranded steel wire cluster 2. A bending energy dissipator is arranged between the stranded steel wire cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the stranded steel wire cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0118] A bending energy dissipator is arranged inside the hammer head 3-1, and the bending energy dissipator is in a bent shape. During the swinging process of the hammer head 3-1, through the inward bending and outward stretching of the bending energy dissipator, the vibration energy of the wire transmitted by the stranded steel wire can be absorbed to achieve the anti-vibration effect.

[0119] By adjusting the bending degree of the bending energy dissipator through the adjusting device, the vibration frequency of the bending energy dissipator is further adjusted, so that the vibration damping hammer head has more resonance frequencies and a wider vibration damping frequency band, and has a better vibration absorption and vibration suppression effect.

[0120] Among them, the groove refers to a groove recessed on the surface at one end of the hammer head 3-1, and the shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces, the inner bottom wall of the groove refers to the wall surface not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface connected to the surface of the hammer head 3-1.

[0121] In addition, it can be understood that the stranded steel wire cluster 2 can also be replaced by a stranded steel wire or other connecting components for connecting the wire clamp and the vibration damping hammer head, such as a wire rope, etc. The equivalent replacement of the stranded steel wire cluster 2 still belongs to the protection scope of this embodiment.

[0122] The wire is clamped by the wire clamp 1, and then the vibration damping hammer is installed on the wire. When the wire has a micro-vibration, the wire clamp 1 can transmit the vibration energy to the stranded steel wire cluster 2 and the vibration damping hammer head 3. Through the friction, bending of the stranded steel wire cluster 2, and the swinging, bending, and friction of the vibration damping hammer head 3, energy dissipation and vibration damping are realized.

[0123] On the basis of the above technical solution, as shown in Figure 2 shown, the bending energy dissipator includes an outer spring steel plate 3-6. One end of the outer spring steel plate 3-6 is connected to the stranded steel wire through a fixing device 3-4, and the other end of the outer spring steel plate 3-6 is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The outer spring steel plate 3-6 is in a bent shape.

[0124] The outer spring steel plate 3-6 is a plate-shaped part itself. It is bent into a curved shape by the fixing device 3-4 and the adjusting device, and then installed between the steel strand and the inner side wall of the groove of the hammer head 3-1. Then, the outer spring steel plate 3-6 has a tendency to stretch and also has a certain compression space. During the swinging process of the hammer head 3-1, through the inward bending and outward stretching of the outer spring steel plate 3-6, the vibration energy of the wire transmitted by the steel strand can be absorbed, achieving the anti-vibration effect.

[0125] In addition, a micro acceleration sensor is arranged at the top of the spherical arc surface at one end of the hammer head 3-1, and the vibration characteristics of the hammer head 3-1 are affected by the vibration characteristics of the wire. The acceleration sensor is self-powered using MEMS (Micro-Electro-Mechanical System) technology and does not require an external power source. And the acceleration sensor signal can be transmitted through a wireless communication module installed on the transmission tower, and the wireless transmission module is powered by a solar panel. Therefore, the performance state of the wire can be monitored by monitoring the acceleration of the hammer head, and the wire with fatigue broken strands can be quickly identified.

[0126] Embodiment III

[0127] This embodiment provides a broadband intelligent anti-vibration hammer for transmission lines, as Figure 3 and Figure 4 shown, including a wire clamp 1, a steel strand cluster 2, and a vibration absorption hammer head 3. The wire clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration absorption hammer head 3 is respectively arranged at both ends of the steel strand cluster 2; the structure of the vibration absorption hammer head 3 is as Figure 1 shown, including a hammer head 3-1. A groove is arranged at one end of the hammer head 3-1, and the inner bottom wall of the groove is connected to the steel strand cluster 2. A bending energy dissipator is arranged between the steel strand cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0128] As Figure 2 shown, the bending energy dissipator includes an outer spring steel plate 3-6. One end of the outer spring steel plate 3-6 is connected to the steel strand through a fixing device 3-4, and the other end of the outer spring steel plate 3-6 is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The outer spring steel plate 3-6 is in a curved shape.

[0129] The outer spring steel plate 3-6 is a plate-shaped member itself. It is bent into a curved shape by the fixing device 3-4 and the adjusting device, and then installed between the steel strand and the inner side wall of the groove of the hammer head 3-1. Then, the outer spring steel plate 3-6 has a tendency to stretch and also has a certain compression space. During the swinging process of the hammer head 3-1, through the inward bending and outward stretching of the outer spring steel plate 3-6, the vibration energy of the wire transmitted by the steel strand can be absorbed, achieving the anti-vibration effect.

[0130] By adjusting the bending degree of the bending energy dissipator through the adjusting device, and then adjusting the vibration frequency of the bending energy dissipator, the vibration absorption hammer head has more resonance frequencies and a wider vibration damping frequency band, and has a better vibration absorption and vibration suppression effect.

[0131] Among them, the groove refers to a groove recessed on the surface of one end of the hammer head 3-1. The shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces. The inner bottom wall of the groove refers to the wall surface that is not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface that is connected to the surface of the hammer head 3-1.

[0132] In addition, it can be understood that the steel strand cluster 2 can also be replaced by a steel strand or other connecting components for connecting the wire clamp and the vibration absorption hammer head, such as a wire rope, etc. The equivalent replacement of the steel strand cluster 2 still belongs to the protection scope of this embodiment.

[0133] The wire is clamped by the wire clamp 1, and then the vibration damping hammer is installed on the wire. When the wire has micro-vibration, the wire clamp 1 can transmit the vibration energy to the steel strand cluster 2 and the vibration absorption hammer head 3. Through the friction, bending of the steel strand cluster 2, and the swinging, bending, friction, etc. of the vibration absorption hammer head 3, energy dissipation and vibration damping are realized.

[0134] On the basis of the above technical solution, as Figure 2 shown, the bending energy dissipator further includes an inner spring steel plate 3-11, and the inner spring steel plate 3-11 is arranged inside the outer spring steel plate 3-6.

[0135] A friction layer 3-10 is arranged between the outer spring steel plate 3-6 and the inner spring steel plate 3-11. The friction layer 3-10 is a steel sheet. The inner surface of the friction layer 3-10 is a rough surface, and / or the outer surface of the friction layer 3-10 is a rough surface. In this embodiment, both the inner surface and the outer surface of the friction layer 3-10 are rough surfaces.

[0136] The friction coefficient of the inner surface of the friction layer 3-10 is 0.35, and the friction coefficient of the outer surface of the friction layer 3-10 is 0.4.

[0137] The inner spring steel plate 3-11 and the friction layer 3-10 are not fixedly connected to the outer spring steel plate 3-6. Instead, the inner spring steel plate 3-11 and the friction layer 3-10 are merely placed inside the outer spring steel plate 3-6. Additionally, neither the inner spring steel plate 3-11 nor the friction layer 3-10 is fixedly connected to other components. Therefore, the friction layer 3-10 and the outer spring steel plate 3-6 can slide relative to each other, and the inner spring steel plate 3-11 and the friction layer 3-10 can also slide relative to each other. Both the inner spring steel plate 3-11 and the friction layer 3-10 are plate-shaped components. After placing them in the bending space of the outer spring steel plate 3-6, both the inner spring steel plate 3-11 and the friction layer 3-10 are bent. Thus, both the inner spring steel plate 3-11 and the friction layer 3-10 tend to extend outward, so that the friction layer 3-10 can closely adhere to the outer spring steel plate 3-6, and the inner spring steel plate 3-11 closely adheres to the friction layer 3-10.

[0138] During the swinging process of the hammer head 3-1, the outer spring steel plate 3-6 is continuously compressed and stretched, driving the friction layer 3-10 and the inner spring steel plate 3-11 to be continuously compressed and stretched. Consequently, the friction layer 3-10 and the outer spring steel plate 3-6, as well as the friction layer 3-10 and the inner spring steel plate 3-11, continuously displace relative to each other, achieving friction energy dissipation.

[0139] The friction layer 3-10 can increase the friction area. The surface of the friction layer 3-10 is a rough surface, which further increases the frictional force and improves the friction energy dissipation efficiency.

[0140] Embodiment 4

[0141] This embodiment provides a broadband intelligent vibration damper for transmission lines, as Figure 3 and Figure 4 shown, which includes a clamp 1, a steel strand cluster 2, and a vibration absorption hammer head 3. The clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration absorption hammer head 3 is respectively arranged at both ends of the steel strand cluster 2; the structure of the vibration absorption hammer head 3 is as Figure 1 shown, including a hammer head 3-1. One end of the hammer head 3-1 is provided with a groove, and the inner bottom wall of the groove is connected to the steel strand cluster 2. A bending energy dissipator is arranged between the steel strand cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0142] The wire is clamped by the clamp 1, and then the vibration damper is installed on the wire. When the wire has micro-vibrations, the clamp 1 can transfer the vibration energy to the steel strand cluster 2 and the vibration absorption hammer head 3. Through the friction, bending of the steel strand cluster 2, as well as the swinging, bending, and friction of the vibration absorption hammer head 3, energy dissipation and vibration reduction are achieved.

[0143] AsFigure 2 As shown, the bending energy dissipator includes an outer spring steel plate 3-6. One end of the outer spring steel plate 3-6 is connected to the steel strand through a fixing device 3-4, and the other end of the outer spring steel plate 3-6 is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The outer spring steel plate 3-6 is in a bent shape.

[0144] The outer spring steel plate 3-6 itself is a plate-shaped member. It is bent into a bent shape by using the fixing device 3-4 and the adjusting device, and then installed between the steel strand and the inner side wall of the groove of the hammer head 3-1. Then, the outer spring steel plate 3-6 has a tendency to stretch and also has a certain compression space. During the swinging process of the hammer head 3-1, through the inward bending and outward stretching of the outer spring steel plate 3-6, the vibration energy of the conductor transmitted by the steel strand can be absorbed, achieving the anti-vibration effect.

[0145] By adjusting the bending degree of the outer spring steel plate 3-6 through the adjusting device, the vibration frequency of the bending energy dissipator is further adjusted, enabling the vibration-absorbing hammer head to have more resonance frequencies and a wider vibration reduction frequency band, and having a better vibration absorption and vibration suppression effect.

[0146] Among them, the groove refers to a groove recessed on the surface of one end of the hammer head 3-1, and the shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces. The inner bottom wall of the groove refers to the wall surface not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface connected to the surface of the hammer head 3-1.

[0147] In addition, it can be understood that the steel strand cluster 2 can also be replaced by a steel strand or other connecting components for connecting the wire clamp and the vibration-absorbing hammer head, such as a wire rope, etc. The equivalent replacement of the steel strand cluster 2 still belongs to the protection scope of this embodiment.

[0148] As Figure 2 shown, the bending energy dissipator further includes an inner spring steel plate 3-11, and the inner spring steel plate 3-11 is arranged inside the outer spring steel plate 3-6.

[0149] A friction layer 3-10 is arranged between the outer spring steel plate 3-6 and the inner spring steel plate 3-11. The friction layer 3-10 is a steel sheet. The inner surface of the friction layer 3-10 is a rough surface, and / or the outer surface of the friction layer 3-10 is a rough surface. In this embodiment, both the inner surface and the outer surface of the friction layer 3-10 are rough surfaces.

[0150] The friction coefficient of the inner surface of the friction layer 3-10 is 0.45, and the friction coefficient of the outer surface of the friction layer 3-10 is 0.5.

[0151] The inner spring steel plate 3-11 and the friction layer 3-10 are not fixedly connected to the outer spring steel plate 3-6. Instead, the inner spring steel plate 3-11 and the friction layer 3-10 are only placed inside the outer spring steel plate 3-6. Additionally, neither the inner spring steel plate 3-11 nor the friction layer 3-10 is fixedly connected to other components. Therefore, the friction layer 3-10 and the outer spring steel plate 3-6 can slide relative to each other, and the inner spring steel plate 3-11 and the friction layer 3-10 can slide relative to each other. Both the inner spring steel plate 3-11 and the friction layer 3-10 are plate-shaped components. After placing the two in the bending space of the outer spring steel plate 3-6, both the inner spring steel plate 3-11 and the friction layer 3-10 are bent. Therefore, both the inner spring steel plate 3-11 and the friction layer 3-10 have a tendency to extend outward, so that the friction layer 3-10 can closely adhere to the outer spring steel plate 3-6, and the inner spring steel plate 3-11 closely adheres to the friction layer 3-10.

[0152] During the swinging process of the hammer head 3-1, the outer spring steel plate 3-6 is continuously compressed and stretched, driving the friction layer 3-10 and the inner spring steel plate 3-11 to be continuously compressed and stretched. Furthermore, the friction layer 3-10 and the outer spring steel plate 3-6, as well as the friction layer 3-10 and the inner spring steel plate 3-11, continuously move relative to each other, realizing friction energy dissipation.

[0153] The friction layer 3-10 can increase the friction area. The surface of the friction layer 3-10 is a rough surface, which further increases the frictional force and improves the friction energy dissipation efficiency.

[0154] Embodiment Five

[0155] This embodiment provides a broadband intelligent vibration damper for transmission lines, as Figure 3 and Figure 4 shown, including a wire clamp 1, a steel strand cluster 2, and a vibration-absorbing hammer head 3. The wire clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration-absorbing hammer head 3 is respectively arranged at both ends of the steel strand cluster 2; the structure of the vibration-absorbing hammer head 3 is as Figure 1 shown, including a hammer head 3-1. One end of the hammer head 3-1 is provided with a groove, and the inner bottom wall of the groove is connected to the steel strand cluster 2. A bending energy dissipator is arranged between the steel strand cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0156] Among them, the groove refers to a groove recessed on the surface of one end of the hammer head 3-1, and the shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces. The inner bottom wall of the groove refers to the wall surface that is not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface that is connected to the surface of the hammer head 3-1.

[0157] In addition, it can be understood that the cluster of steel strands 2 can also be replaced by steel strands or other connecting components for connecting the clamp and the vibration damping hammer head, such as steel wire ropes, etc. The equivalent replacement of the cluster of steel strands 2 still falls within the protection scope of this embodiment.

[0158] As Figure 2 shown, the bending energy dissipator includes an outer spring steel plate 3-6. One end of the outer spring steel plate 3-6 is connected to the steel strand through a fixing device 3-4, and the other end of the outer spring steel plate 3-6 is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The outer spring steel plate 3-6 is in a bent shape.

[0159] As Figure 2 shown, the bending energy dissipator further includes an inner spring steel plate 3-11, and the inner spring steel plate 3-11 is arranged inside the outer spring steel plate 3-6.

[0160] A friction layer 3-10 is arranged between the outer spring steel plate 3-6 and the inner spring steel plate 3-11. The friction layer 3-10 is a steel sheet. The inner surface of the friction layer 3-10 is a rough surface, and / or the outer surface of the friction layer 3-10 is a rough surface. In this embodiment, both the inner surface and the outer surface of the friction layer 3-10 are rough surfaces.

[0161] The friction coefficient of the inner surface of the friction layer 3-10 is 0.4, and the friction coefficient of the outer surface of the friction layer 3-10 is 0.45.

[0162] The inner spring steel plate 3-11 and the friction layer 3-10 are not fixedly connected to the outer spring steel plate 3-6. Instead, the inner spring steel plate 3-11 and the friction layer 3-10 are only placed inside the outer spring steel plate 3-6. In addition, neither the inner spring steel plate 3-11 nor the friction layer 3-10 is fixedly connected to other components. Therefore, the friction layer 3-10 and the outer spring steel plate 3-6 can slide relative to each other, and the inner spring steel plate 3-11 and the friction layer 3-10 can slide relative to each other. Both the inner spring steel plate 3-11 and the friction layer 3-10 are plate-shaped parts. After placing the two in the bending space of the outer spring steel plate 3-6, both the inner spring steel plate 3-11 and the friction layer 3-10 are bent. Therefore, both the inner spring steel plate 3-11 and the friction layer 3-10 have a tendency to extend outwards, so that the friction layer 3-10 can closely adhere to the outer spring steel plate 3-6, and the inner spring steel plate 3-11 closely adheres to the friction layer 3-10.

[0163] The outer spring steel plate 3-6 is a plate-shaped member itself. It is bent into a curved shape by the fixing device 3-4 and the adjusting device, and then installed between the steel strand and the inner side wall of the groove of the hammer head 3-1. Then, the outer spring steel plate 3-6 has a tendency to stretch and also has a certain compression space. During the swinging process of the hammer head 3-1, through the inward bending and outward stretching of the outer spring steel plate 3-6, the vibration energy of the wire transmitted by the steel strand can be absorbed, achieving the anti-vibration effect.

[0164] By adjusting the bending degree of the outer spring steel plate 3-6 through the adjusting device, the vibration frequency of the bending energy dissipator is further adjusted, enabling the vibration absorption hammer head to have more resonance frequencies and a wider vibration damping frequency band, and having a better vibration absorption and vibration suppression effect.

[0165] During the swinging process of the hammer head 3-1, the outer spring steel plate 3-6 is continuously compressed and stretched, driving the friction layer 3-10 and the inner spring steel plate 3-11 to be continuously compressed and stretched. Furthermore, the friction layer 3-10 and the outer spring steel plate 3-6, and the friction layer 3-10 and the inner spring steel plate 3-11 are continuously displaced relative to each other, realizing friction energy dissipation.

[0166] The friction layer 3-10 can increase the friction area. The surface of the friction layer 3-10 is a rough surface, further increasing the friction force and improving the friction energy dissipation efficiency.

[0167] Based on the above technical solutions, as Figure 2 shown, the bending energy dissipator further includes a first limiter, and the first limiter is arranged inside the end of the outer spring steel plate 3-6 connected to the adjusting device. The bending energy dissipator further includes a second limiter 3-9, and the second limiter 3-9 is arranged inside the connection part of the outer spring steel plate 3-6 and the fixing device 3-4.

[0168] The structures of the first limiter and the second limiter 3-9 can be the same or different. In this embodiment, the structures of the first limiter and the second limiter 3-9 are the same, and both are vertically arranged plates with reinforcing ribs arranged at the rear side of the plates. By using the first limiter and the second limiter 3-9, the inner spring steel plate 3-11 and the friction layer 3-10 are restricted from slipping out of the outer spring steel plate 3-6. This design belongs to a defense mechanism. Generally, the inner spring steel plate 3-11 and the friction layer 3-10 will not slip out of the outer spring steel plate 3-6.

[0169] In addition, since the outer spring steel plate 3-6 has a certain length, and during the use of the vibration-absorbing hammer head, the friction layer 3-10 and the inner spring steel plate 3-11 are both bent, relying on the frictional force between the friction layer 3-10 and the outer spring steel plate 3-6, it is possible to prevent the friction layer 3-10 from falling off from the side of the outer spring steel plate 3-6, and relying on the frictional force between the inner spring steel plate 3-11 and the friction layer 3-10, it is possible to prevent the inner spring steel plate 3-11 from falling off from the side of the friction layer 3-10. Therefore, there is no need to provide a limiting structure on the sides of the friction layer 3-10 and the inner spring steel plate 3-11.

[0170] Embodiment Six

[0171] This embodiment provides a broadband intelligent vibration damper for a transmission line, as Figure 3 and Figure 4 shown, including a clamp 1, a steel strand cluster 2 and a vibration-absorbing hammer head 3. The clamp 1 is connected to the middle of the steel strand cluster 2, and one vibration-absorbing hammer head 3 is provided at each end of the steel strand cluster 2; the structure of the vibration-absorbing hammer head 3 is as Figure 1 shown, including a hammer head 3-1. One end of the hammer head 3-1 is provided with a groove, and the inner bottom wall of the groove is connected to the steel strand cluster 2. A bending energy dissipator is provided between the steel strand cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0172] Among them, the groove refers to a groove recessed on the surface of one end of the hammer head 3-1, and the shape of the groove can be square, circular, polygonal or other shapes. Therefore, the groove has multiple wall surfaces, the inner bottom wall of the groove refers to the wall surface that is not connected to the surface of the hammer head 3-1, and the inner side wall of the groove refers to the wall surface that is connected to the surface of the hammer head 3-1.

[0173] In addition, it can be understood that the steel strand cluster 2 can also be replaced by a steel strand or other connecting components for connecting the clamp and the vibration-absorbing hammer head, such as a wire rope, etc. The equivalent replacement of the steel strand cluster 2 still belongs to the protection scope of this embodiment.

[0174] As Figure 2 shown, the bending energy dissipator includes an outer spring steel plate 3-6. One end of the outer spring steel plate 3-6 is connected to the steel strand through a fixing device 3-4, and the other end of the outer spring steel plate 3-6 is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The outer spring steel plate 3-6 is bent.

[0175] The bending energy dissipator further includes an inner spring steel plate 3-11, and the inner spring steel plate 3-11 is arranged inside the outer spring steel plate 3-6.

[0176] A friction layer 3-10 is provided between the outer spring steel plate 3-6 and the inner spring steel plate 3-11. The friction layer 3-10 is a steel sheet. The inner surface of the friction layer 3-10 is a rough surface, and / or the outer surface of the friction layer 3-10 is a rough surface. In this embodiment, both the inner surface and the outer surface of the friction layer 3-10 are rough surfaces.

[0177] The friction coefficient of the inner surface of the friction layer 3-10 is 0.45, and the friction coefficient of the outer surface of the friction layer 3-10 is 0.4.

[0178] The inner spring steel plate 3-11 and the friction layer 3-10 are not fixedly connected to the outer spring steel plate 3-6. Instead, the inner spring steel plate 3-11 and the friction layer 3-10 are only placed inside the outer spring steel plate 3-6. Additionally, neither the inner spring steel plate 3-11 nor the friction layer 3-10 is fixedly connected to other components. Therefore, the friction layer 3-10 and the outer spring steel plate 3-6 can slide relative to each other, and the inner spring steel plate 3-11 and the friction layer 3-10 can slide relative to each other. Both the inner spring steel plate 3-11 and the friction layer 3-10 are plate-shaped members. After placing them in the bending space of the outer spring steel plate 3-6, both the inner spring steel plate 3-11 and the friction layer 3-10 are bent. Therefore, both the inner spring steel plate 3-11 and the friction layer 3-10 have a tendency to extend outward, so that the friction layer 3-10 can closely adhere to the outer spring steel plate 3-6, and the inner spring steel plate 3-11 closely adheres to the friction layer 3-10.

[0179] The outer spring steel plate 3-6 is a plate-shaped member. It is bent into a curved shape by the fixing device 3-4 and the adjusting device, and then installed between the steel strand and the inner side wall of the groove of the hammer head 3-1. Then, the outer spring steel plate 3-6 has a tendency to extend and also has a certain compression space. During the swinging process of the hammer head 3-1, through the inward bending and outward extension of the outer spring steel plate 3-6, the vibration energy of the conductor transmitted by the steel strand can be absorbed, achieving an anti-vibration effect.

[0180] By adjusting the bending degree of the outer spring steel plate 3-6 through the adjusting device, the vibration frequency of the bending energy dissipator is further adjusted, enabling the vibration absorption hammer head to have more resonance frequencies and a wider vibration damping frequency band, and achieving a better vibration absorption and vibration suppression effect.

[0181] During the swinging process of the hammer head 3-1, the outer spring steel plate 3-6 is continuously compressed and stretched, driving the friction layer 3-10 and the inner spring steel plate 3-11 to be continuously compressed and stretched. Consequently, the friction layer 3-10 and the outer spring steel plate 3-6, as well as the friction layer 3-10 and the inner spring steel plate 3-11, are continuously displaced relative to each other, realizing friction energy dissipation.

[0182] The friction layer 3-10 can increase the friction area. The surface of the friction layer 3-10 is a rough surface, which further increases the frictional force and improves the friction energy dissipation efficiency.

[0183] As Figure 2 shown, the bending energy dissipator further includes a first limiter disposed inside the end of the outer spring steel plate 3-6 connecting the adjusting device. The bending energy dissipator further includes a second limiter 3-9 disposed inside the connection between the outer spring steel plate 3-6 and the fixing device 3-4.

[0184] The structures of the first limiter and the second limiter 3-9 may be the same or different. In this embodiment, the structures of the first limiter and the second limiter 3-9 are the same, and both are vertically arranged plates with reinforcing ribs provided at the rear side of the plates. By using the first limiter and the second limiter 3-9, the inner spring steel plate 3-11 and the friction layer 3-10 are restricted from disengaging from the outer spring steel plate 3-6. This design belongs to a defensive mechanism. Generally, the inner spring steel plate 3-11 and the friction layer 3-10 will not disengage from the outer spring steel plate 3-6.

[0185] In addition, since the outer spring steel plate 3-6 has a certain length, and during the use of the vibration-absorbing hammer head, both the friction layer 3-10 and the inner spring steel plate 3-11 are in a bent shape. Relying on the frictional force between the friction layer 3-10 and the outer spring steel plate 3-6, the friction layer 3-10 can be prevented from falling off from the side of the outer spring steel plate 3-6. Relying on the frictional force between the inner spring steel plate 3-11 and the friction layer 3-10, the inner spring steel plate 3-11 can be prevented from falling off from the side of the friction layer 3-10. Therefore, no limiting structures need to be provided on the sides of the friction layer 3-10 and the inner spring steel plate 3-11.

[0186] Based on the above technical solutions, as Figure 2 shown, the specific structure of the fixing device 3-4 is a connecting block. The outer spring steel plate 3-6 is rigidly connected to the fixing device 3-4. The rigid connection can be welding, or can also be connection methods such as riveting and press-fitting. In this embodiment, welding is preferably used. Among them, the connecting block is disposed almost perpendicular to the steel strand. It can be understood that the connecting block can also be connected to the steel strand at other inclined angles, which does not affect the energy dissipation function of the bending energy dissipator.

[0187] The adjusting device includes an adjusting bolt 3-5 and an adjusting nut 3-7. The adjusting bolt 3-5 is disposed on the inner side wall of the groove of the hammer head 3-1, and one end of the outer spring steel plate 3-6 is inserted through the adjusting bolt 3-5; the adjusting nut 3-7 is disposed on the adjusting bolt 3-5, and the adjusting nut 3-7 is located between the end of the bending energy dissipator and the inner side wall of the groove.

[0188] The outer spring steel plate 3-6 has a certain thickness. To facilitate the connection of the outer spring steel plate 3-6, one end of the outer spring steel plate 3-6 is thinned, and holes are drilled in the thinned end. The connection between the outer spring steel plate 3-6 and the adjusting bolt 3-5 is achieved through the through holes. In other embodiments, the adjusting bolt 3-5 can be equivalently replaced by a shaft with an external thread, and steps, partially smooth surfaces, etc. can also be provided on the shaft.

[0189] Since the outer spring steel plate 3-6 has a tendency to extend outwards, therefore, the upper end of the outer spring steel plate 3-6 has a tendency to move upwards. An adjusting nut 3-7 is arranged on the adjusting bolt 3-5 between the upper end of the outer spring steel plate 3-6 and the inner side wall above the groove. By using the pre-tightening force between the adjusting nut 3-7 and the adjusting bolt 3-5, the upward movement of the upper end of the outer spring steel plate 3-6 is restricted, thereby changing its bending degree.

[0190] Among them, in other embodiments, the adjusting nut 3-7 can also be replaced by a flat structural member or a non-flat structural member with an internal threaded hole.

[0191] Moreover, the adjusting bolt 3-5 and the inner side wall above the groove can be set perpendicular or not perpendicular.

[0192] In addition, the adjusting device further includes an adjusting spring 3-12. The adjusting spring 3-12 is sleeved on the adjusting bolt 3-5, and one end of the adjusting spring 3-12 abuts against the inner side wall of the groove, and the other end of the adjusting spring 3-12 abuts against the adjusting nut 3-7.

[0193] By using the adjusting spring 3-12, the locking between the adjusting nut 3-7 and the adjusting bolt 3-5 can be achieved, avoiding the loosening of the adjusting nut 3-7. Furthermore, the frequency change of the shock-absorbing hammer head during use is avoided, effectively ensuring the continuous and stable anti-vibration effect.

[0194] The adjusting device further includes a protective nut 3-8. The protective nut 3-8 is arranged on the adjusting bolt 3-5 outside the end of the bending energy dissipator. The setting of the protective nut 3-8 belongs to a defensive mechanism to prevent the outer spring steel plate 3-6 from disengaging from the lower end of the adjusting bolt 3-5 due to external factors. It can be understood that the protective nut 3-8 can be a nut or a machined part with an internal threaded hole.

[0195] As Figure 1 shown, a weight groove 3-2 is arranged on the outer wall of the hammer head 3-1. By means of the weight groove 3-2, the weight can be increased to adjust the weight of the hammer head 3-1. The weight can be increased according to needs, providing more options for the adjustment of the frequency.

[0196] The vibration-absorbing hammer head further includes a spherical hinge 3-3, which is arranged on the bottom wall of the groove and is used to connect with the steel strand cluster 2. The number of the bending energy dissipators is 2, and the two bending energy dissipators are symmetrically arranged on both sides of the steel strand. Then the spherical hinge 3-3 is arranged at the center position of the bottom wall of the groove.

[0197] The hammer head 3-1 is cylindrical, the groove is arranged along the axis of the hammer head 3-1, and the front and rear sides of the groove are open. One end of the hammer head 3-1 away from the groove is a spherical arc surface. In other embodiments, the hammer head 3-1 can also be a non-spherical arc surface, or a cylindrical end head with a circular arc chamfer, etc.

[0198] For the vibration-proof hammer provided in this embodiment, by adjusting the position of the adjusting nut 3-7, the bending degree of the outer spring steel plate 3-6 can be adjusted, so as to realize the free adjustment of the frequency of the bending energy dissipator, making the vibration-proof hammer adaptable to different vibration frequencies and different environmental conditions. In addition, even if the swinging direction of the hammer head 3-1 is inclined, it does not affect the bending and stretching of the bending energy dissipator, that is, it does not affect its vibration-proof effect.

[0199] Embodiment Seven

[0200] This embodiment provides a broadband intelligent vibration-proof hammer for transmission lines, as Figure 3 and Figure 4 shown, which includes a clamp 1, a steel strand cluster 2 and a vibration-absorbing hammer head 3. The clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration-absorbing hammer head 3 is respectively arranged at both ends of the steel strand cluster 2; the structure of the vibration-absorbing hammer head 3 is as Figure 1 shown, including a hammer head 3-1. One end of the hammer head 3-1 is provided with a groove, the inner bottom wall of the groove is connected to the steel strand cluster 2, and a bending energy dissipator is arranged between the steel strand cluster 2 and the inner side wall of the groove; one end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device; the bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0201] The wire is clamped by the clamp 1, and then the vibration-proof hammer is installed on the wire. When the wire has a micro-vibration, the clamp 1 can transfer the vibration energy to the steel strand cluster 2 and the vibration-absorbing hammer head 3, and through the friction, bending of the steel strand cluster 2, and the swinging, bending, friction, etc. of the vibration-absorbing hammer head 3, the energy consumption and vibration reduction are realized.

[0202] Based on the above technical solution, the steel strand cluster 2 includes an upper steel strand 2-1, and the upper steel strand 2-1 is connected to the vibration-absorbing hammer head 3. Specifically, the upper steel strand 2-1 is connected to the spherical hinge 3-3 of the vibration-absorbing hammer head 3. Therefore, the vibration-absorbing hammer head 3 can swing around the spherical hinge 3-3.

[0203] In some embodiments, the number of the upper steel strands 2-1 is 2, and the two upper steel strands 2-1 are arranged horizontally and side by side.

[0204] In addition, the steel strand cluster 2 further includes a lower steel strand 2-2 and steel wires 2-3. The lower steel strand 2-2 is arranged below the upper steel strands 2-1, and both ends of the lower steel strand 2-2 are free ends; the steel wires 2-3 are wound outside the lower steel strand 2-2 and the upper steel strands 2-1.

[0205] The lower steel strand 2-2 and the two upper steel strands 2-1 form an inverted triangular structure; the cross-sectional view of the steel strand cluster 2 is as Figure 5 shown.

[0206] The length of the lower steel strand 2-2 is less than that of the upper steel strands 2-1. At the same time, the upper steel strands 2-1 and the lower steel strand 2-2 can use steel strands of the same specification. Of course, steel strands of different specifications can also be used.

[0207] For the clamp 1 in this embodiment and the connection method between the clamp 1 and the steel strand cluster 2, the clamps and the existing connection methods in the prior art can be adopted, and the specific structures and principles will not be elaborated here.

[0208] For the vibration damping hammer provided in this embodiment, the clamp 1 is used to clamp the wire, so that the vibration damping hammer is installed on the wire. The clamp 1 is connected to the steel strand cluster 2 below. The vibration damping hammers 3 provided by the present invention are arranged on both sides of the steel strand cluster 2. By using the characteristic that the vibration damping hammers 3 can freely adjust the frequency, the vibration damping hammer provided by the present invention can be applicable to wires with different vibration frequencies and different environmental conditions.

[0209] For the vibration damping hammer provided in this embodiment, the steel strand cluster 2 connects the clamp 1 and the vibration damping hammers 3. The steel strand cluster 2 includes two upper steel strands 2-1 and one lower steel strand 2-2. During the vibration of the wire, the steel strands rub against each other. By using the friction energy dissipation principle, the vibration damping and anti-vibration effects of the vibration damping hammer are further enhanced. In addition, the steel strand cluster 2 in this embodiment increases the friction area and adjustability between the steel strands. The increase in the friction area provides a stronger energy dissipation ability. At the same time, both ends of the lower steel strand 2-2 are free ends. Without disassembling the hammer head 3-1, it is convenient to replace the lower steel strand 2-2, which further provides greater convenience and greater operability for the frequency adjustment of the vibration damping hammer; it is also beneficial to the maintenance of the vibration damping hammer.

[0210] Embodiment VIII

[0211] This embodiment provides a broadband intelligent vibration damping hammer for transmission lines, as Figure 3 and Figure 4As shown, it includes a wire clamp 1, a steel strand cluster 2, and a vibration damping hammer head 3. The wire clamp 1 is connected to the middle of the steel strand cluster 2, and a vibration damping hammer head 3 is provided at each end of the steel strand cluster 2. The structure of the vibration damping hammer head 3 is as shown in Figure 1 As shown, it includes a hammer head 3-1. A groove is provided at one end of the hammer head 3-1, and the inner bottom wall of the groove is connected to the steel strand cluster 2. A bending energy dissipator is provided between the steel strand cluster 2 and the inner side wall of the groove. One end of the bending energy dissipator is connected to the steel strand cluster 2 through a fixing device 3-4, and the other end of the bending energy dissipator is connected to the inner side wall of the groove of the hammer head 3-1 through an adjusting device. The bending degree of the bending energy dissipator can be adjusted through the adjusting device.

[0212] The wire clamp 1 is used to clamp the wire, and then the vibration damping hammer is installed on the wire. When the wire has micro-vibrations, the wire clamp 1 can transfer the vibration energy to the steel strand cluster 2 and the vibration damping hammer head 3. Through the friction, bending of the steel strand cluster 2, and the swinging, bending, and friction of the vibration damping hammer head 3, energy dissipation and vibration reduction are achieved.

[0213] The steel strand cluster 2 includes upper-layer steel strands 2-1, and the upper-layer steel strands 2-1 are connected to the vibration damping hammer head 3. Specifically, the upper-layer steel strands 2-1 are connected to the spherical hinge 3-3 of the vibration damping hammer head 3. Therefore, the vibration damping hammer head 3 can swing around the spherical hinge 3-3.

[0214] In some embodiments, the number of the upper-layer steel strands 2-1 is 2, and the two upper-layer steel strands 2-1 are arranged horizontally in parallel.

[0215] In addition, the steel strand cluster 2 further includes lower-layer steel strands 2-2 and steel wires 2-3. The lower-layer steel strands 2-2 are arranged below the upper-layer steel strands 2-1, and both ends of the lower-layer steel strands 2-2 are free ends; the steel wires 2-3 are wound around the outer sides of the lower-layer steel strands 2-2 and the upper-layer steel strands 2-1.

[0216] The lower-layer steel strands 2-2 and the two upper-layer steel strands 2-1 form an inverted triangular structure; the cross-sectional view of the steel strand cluster 2 is as shown in Figure 5 As shown.

[0217] The length of the lower-layer steel strands 2-2 is less than the length of the upper-layer steel strands 2-1. At the same time, the upper-layer steel strands 2-1 and the lower-layer steel strands 2-2 can use steel strands of the same specification. Of course, steel strands of different specifications can also be used.

[0218] Based on the above technical solution, the wire clamp 1 includes an annular tentacle 1-1, an independent tentacle 1-2, and a conductor 1-5. The bottom end of the conductor 1-5 is connected to the middle of the stranded steel wire cluster 2, the upper end of the conductor 1-5 is connected to the annular tentacle 1-1, the annular tentacle 1-1 is detachably connected to the independent tentacle 1-2, and a wire is arranged between the annular tentacle 1-1 and the independent tentacle 1-2.

[0219] In some embodiments, the annular tentacle 1-1 includes an upper first clamping jaw and a first connecting plate arranged below the first clamping jaw. The first clamping jaw is used for clamping the wire, and the first connecting plate is connected to the conductor 1-5.

[0220] In some embodiments, the cross-section of the first clamping jaw is a semi-circular ring. It can be understood that the first clamping jaw can also be set to a structure with a cross-section of 2 / 5 circular ring, or other structural members with a certain curved shape.

[0221] In some embodiments, the first connecting plate is trapezoidal in reverse. The bottom of the first connecting plate is connected to the conductor 1-5. The upper part of the first connecting plate has the same length as the first clamping jaw and the two ends are aligned; the bottom of the first connecting plate has the same width as the upper end of the conductor 1-5.

[0222] In some embodiments, the independent tentacle 1-2 includes an upper second clamping jaw and a second connecting plate arranged below the second clamping jaw. The second clamping jaw is used for clamping the wire, and the second connecting plate is detachably connected to the first connecting plate.

[0223] The annular tentacle 1-1 and the independent tentacle 1-2 are arranged oppositely. The structures of the independent tentacle 1-2 and the annular tentacle 1-1 can be the same or different. In this embodiment, the independent tentacle 1-2 and the annular tentacle 1-1 not only have the same structure but also the same size. Then the cross-section of the second clamping jaw of the independent tentacle 1-2 is also a semi-circular ring. The first clamping jaw and the second clamping jaw are arranged oppositely to form a circular ring for clamping the wire. The second connecting plate is also trapezoidal in reverse. The upper part of the second connecting plate has the same length as the second clamping jaw and the two ends are aligned; the bottom of the second connecting plate has the same width as the upper end of the conductor 1-5.

[0224] In some embodiments, through holes are arranged on both the first connecting plate and the second connecting plate, and a fastening bolt 1-3 is inserted through the through holes. The first connecting plate and the second connecting plate are detachably connected through the fastening bolt 1-3. In other embodiments, the fastening bolt 1-3 can also be replaced by a stud or an equivalent component, and nuts are used to fasten both ends of the stud. Or the first connecting plate and the second connecting plate can also adopt other connection methods. For example, a clearance hole is arranged on one connecting plate, a threaded hole is arranged on the other connecting plate, and a screw is tightened from the side of the clearance hole to the side of the threaded hole to achieve fastening.

[0225] In some embodiments, a lever block 1-4 is provided at the bottom between the first connecting plate and the second connecting plate. Preferably, the lever block 1-4 is welded to the first connecting plate. After adding the lever block 1-4, there is a certain gap between the first connecting plate and the second connecting plate, so that when the first connecting plate and the second connecting plate are fastened, the wire can be firmly clamped, realizing rapid and powerful transmission of energy.

[0226] In some embodiments, the conductor 1-5 includes a transition block and a stranded steel block provided below the transition block. The upper part of the transition block is connected to the annular tentacle 1-1. A through hole is provided inside the stranded steel block, and the stranded steel block is fixedly connected to the stranded steel wire cluster 2 through the through hole inside it.

[0227] In some embodiments, when the vibration damper is installed on the wire, the posture of the vibration absorption hammer head 3 is such that the bending energy dissipators on both sides of the stranded steel wire cluster 2 are arranged vertically, as Figure 3 shown, that is, the two bending energy dissipators on the left side of the vibration absorption hammer head 3 are arranged one above the other, and the outer spring steel plate 3-6 of the bending energy dissipator extends horizontally; similarly, the two bending energy dissipators on the right side of the vibration absorption hammer head 3 are arranged one above the other, and the outer spring steel plate 3-6 of the bending energy dissipator extends horizontally.

[0228] The vibration damper provided in this embodiment uses the wire clamp 1 to clamp the wire, and then the vibration damper is installed on the wire. The wire clamp 1 is connected to the stranded steel wire cluster 2 below. The vibration absorption hammer head 3 provided by the present invention is arranged on both sides of the stranded steel wire cluster 2. Utilizing the characteristic that the vibration absorption hammer head 3 can freely adjust the frequency, the vibration damper provided by the present invention can be applicable to wires with different vibration frequencies and different environmental conditions.

[0229] The vibration damper provided in this embodiment uses the stranded steel wire cluster 2 to connect the wire clamp 1 and the vibration absorption hammer head 3. The stranded steel wire cluster 2 includes two upper stranded steel wires 2-1 and one lower stranded steel wire 2-2. During the vibration of the wire, the stranded steel wires rub against each other. Using the friction energy dissipation principle, the vibration reduction and vibration prevention effect of the vibration damper is further enhanced. In addition, the stranded steel wire cluster 2 in this embodiment increases the friction area and adjustability between the stranded steel wires. The increase in the friction area provides a more powerful energy dissipation ability. At the same time, both ends of the lower stranded steel wire 2-2 are free ends. Without disassembling the hammer head 3-1, it is convenient to replace the lower stranded steel wire 2-2, which provides greater convenience and operability for the frequency adjustment of the vibration damper; it is also beneficial to the maintenance of the vibration damper.

[0230] The vibration damper provided in this embodiment, its wire clamp 1 includes an annular tentacle 1-1 and an independent tentacle 1-2, and a lever block 1-4 is arranged between the annular tentacle 1-1 and the independent tentacle 1-2. The lever block 1-4 is used to make a certain gap between the annular tentacle 1-1 and the independent tentacle 1-2, and then the annular tentacle 1-1 and the independent tentacle 1-2 are fastened by a fastening bolt 1-3. Furthermore, the annular tentacle 1-1 can firmly hold the wire clamp 1 and generate a pre-tightening force to effectively transmit vibration energy, and can still hold the wire tightly when the diameter of the wire is weakened.

[0231] Optimization Design Method of Wide-Band Intelligent Vibration Damper

[0232] Embodiment Nine

[0233] This embodiment provides an optimization design method of a wide-band intelligent vibration damper, which optimizes the wide-band intelligent vibration damper for transmission lines provided in Embodiments 1 to 8. The specific wide-band intelligent vibration damper design optimization method includes:

[0234] S1. Measure the vibration angle at the wire hanging point of the transmission line and the maximum vibration frequency ;

[0235] S2. Set the frequency of one of the vibration absorption heads 3 to a first set value, and the frequency of the other vibration absorption head 3 to a second set value. Without considering the overall frequency of the vibration damper when the vibration absorption head 3 vibrates, set it to a third set value;

[0236] S3. After installing the vibration damper, measure the vibration angle at the wire hanging point again. When the measured vibration angle is less than the allowable vibration angle, the installation is completed; when the maximum vibration angle exceeds the allowable vibration angle, additional weights should be added and the frequency of the vibration damper should be kept unchanged and then measured again until the maximum vibration angle is less than the allowable vibration angle, and the installation is completed.

[0237] In some embodiments, the vibration angle is:

[0238] ;

[0239] In the above formula, is the vibration wave wavelength, is the amplitude of the vibration wave at the measurement point, is the distance between the measurement point and the entrance of the wire clamp.

[0240] In some embodiments, the maximum vibration frequency is:

[0241] ;

[0242] In the formula, is the stiffness of the wire system, is the wire quality.

[0243] In some embodiments, the first set value is 0.1 .

[0244] In some embodiments, the second set value is 0.5 .

[0245] In some embodiments, the third set value is 0.8 .

[0246] In some embodiments, the vibration angle at the wire hanging point is measured again, specifically including: after installing the vibration damper, measuring the vibration angle at least once or more, and taking the maximum value as the vibration angle measured again.

[0247] In some embodiments, the allowable vibration angle is 10'.

[0248] In some embodiments, a counterweight is added in step S3 and the frequency of the vibration damper is kept unchanged. The specific method is: the mass of each counterweight block is 50 g, one counterweight block is added at a time, and after adding the counterweight, the position of the adjusting nut 3-7 is adjusted to ensure that the frequency of the vibration damper remains unchanged.

[0249] The optimized design method of the broadband intelligent vibration damper provided in this embodiment first measures the maximum vibration frequency and vibration angle of the wire near the wire hanging point, and adjusts the natural vibration frequencies of the two vibration absorption heads 3 and the vibration damper as a whole to , and ; then, according to the counterweight, the vibration angle is measured again after keeping the frequency of the vibration damper unchanged. After multiple measurements, the maximum vibration angle is taken to ensure that the maximum vibration angle is less than the allowable vibration angle, so as to maximize the vibration reduction and energy absorption effect.

[0250] The above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A broadband intelligent anti-vibration hammer for power transmission lines, characterized in that: It comprises a wire clamp, a steel strand cluster and a vibration absorbing hammer, wherein the wire clamp is connected to the middle of the steel strand cluster, and a vibration absorbing hammer is respectively arranged at both ends of the steel strand cluster; the vibration absorbing hammer comprises a hammer, one end of which is provided with a groove, the inner wall of the groove is connected to the steel strand cluster, and a bending energy absorber is arranged between the steel strand cluster and the inner wall of the groove; one end of the bending energy absorber is connected to the steel strand cluster through a fixing device, and the other end of the bending energy absorber is connected to the inner wall of the groove of the hammer through an adjusting device; the bending degree of the bending energy absorber can be adjusted by the adjusting device; The bending energy absorber includes an outer spring steel plate, one end of which is connected to the steel strand cluster via a fixing device, and the other end of which is connected to the inner wall of the groove of the hammer head via an adjusting device; the outer spring steel plate is curved.

2. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The bending energy absorber further comprises an inner spring steel plate, and the inner spring steel plate is arranged inside the outer spring steel plate.

3. The broadband intelligent anti-vibration hammer according to claim 2, characterized in that: A friction layer is arranged between the outer spring steel plate and the inner spring steel plate.

4. The broadband intelligent anti-vibration hammer according to claim 3, characterized in that: The friction layer is a steel sheet.

5. The broadband intelligent anti-vibration hammer according to claim 3 or 4, characterized in that: The inner surface of the friction layer is a rough surface, and / or the outer surface of the friction layer is a rough surface.

6. The broadband intelligent anti-vibration hammer according to claim 5, characterized in that: The friction coefficient of the inner surface of the friction layer is 0.35-0.45, and / or the friction coefficient of the outer surface of the friction layer is 0.4-0.

5.

7. The broadband intelligent anti-vibration hammer according to claim 3, characterized in that: The bending energy absorber also includes a first limiter, which is arranged on the inner side of the end of the outer spring steel plate connected to the adjusting device.

8. The broadband intelligent anti-vibration hammer according to claim 7, characterized in that: The bending energy absorber further comprises a second limiter, which is arranged at the inner side of the connection between the outer spring steel plate and the fixing device.

9. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The fixing device is a connecting block.

10. The broadband intelligent anti-vibration hammer according to claim 9, characterized in that: The bending energy absorber is rigidly connected to the fixing device.

11. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The adjusting device includes an adjusting bolt and an adjusting nut. The adjusting bolt is arranged on the inner wall of the groove of the hammer head, and one end of the bending energy absorber is passed through the adjusting bolt; the adjusting nut is arranged on the adjusting bolt, and the adjusting nut is located between the end of the bending energy absorber and the inner wall of the groove.

12. The broadband intelligent anti-vibration hammer according to claim 11, characterized in that: The adjusting device further comprises an adjusting spring, which is passed through the adjusting bolt, and one end of the adjusting spring abuts against the inner wall of the groove, and the other end of the adjusting spring abuts against the adjusting nut.

13. The broadband intelligent anti-vibration hammer according to claim 12, characterized in that: The adjusting device further comprises a protective nut, and the protective nut is arranged outside the end of the bending energy absorber.

14. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The outer wall of the hammer head is provided with a counterweight groove.

15. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The vibration absorbing hammer head also includes a ball joint, which is arranged on the inner wall of the groove and is used to connect with the steel strand cluster.

16. The broadband intelligent anti-vibration hammer according to claim 15, characterized in that: The number of the bending energy absorbers is 2, and the two bending energy absorbers are symmetrically arranged on both sides of the steel strand.

17. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The hammer head is cylindrical, and the groove is arranged along the axis of the hammer head.

18. The broadband intelligent anti-vibration hammer according to claim 17, characterized in that: One end of the hammer head away from the groove is a spherical arc surface.

19. The broadband intelligent anti-vibration hammer according to claim 18, characterized in that: A micro acceleration sensor is arranged on the top of the spherical arc surface of the hammer head away from one end of the groove.

20. The broadband intelligent anti-vibration hammer according to claim 19, characterized in that: The acceleration sensor adopts a MEMS system for self-power supply.

21. The broadband intelligent anti-vibration hammer according to claim 20, characterized in that: The signal collected by the acceleration sensor is transmitted through a wireless communication module installed on the transmission tower, and the wireless communication module is powered by a solar panel.

22. The broadband intelligent anti-vibration hammer according to claim 15, characterized in that: The steel strand cluster comprises an upper layer of steel strands, and the upper layer of steel strands is connected to the vibration absorbing hammer head.

23. The broadband intelligent anti-vibration hammer according to claim 22, characterized in that: The upper layer of steel strands is connected to the ball joint of the vibration absorbing hammer head.

24. The broadband intelligent anti-vibration hammer according to claim 23, characterized in that: The number of the upper steel strands is 2, and two of the upper steel strands are arranged horizontally in parallel.

25. The broadband intelligent anti-vibration hammer according to claim 24, characterized in that: The steel strand cluster also includes a lower layer of steel strands and steel wires. The lower layer of steel strands is arranged below the upper layer of steel strands, and both ends of the lower layer of steel strands are free ends. The steel wires are wound around the outer sides of the lower layer of steel strands and the upper layer of steel strands.

26. The broadband intelligent anti-vibration hammer according to claim 25, characterized in that: The lower layer of steel strands and the two upper layer of steel strands form an inverted triangle structure.

27. The broadband intelligent anti-vibration hammer according to claim 25, characterized in that: The length of the lower layer of steel strands is smaller than the length of the upper layer of steel strands.

28. The broadband intelligent anti-vibration hammer according to claim 1, characterized in that: The wire clamp includes an annular tentacle, an independent tentacle and a conductor, the bottom end of the conductor is connected to the middle of the steel strand cluster, the upper end of the conductor is connected to the annular tentacle, the annular tentacle and the independent tentacle are detachably connected, and a wire is arranged between the annular tentacle and the independent tentacle.

29. The broadband intelligent anti-vibration hammer according to claim 28, characterized in that: The annular tentacle includes a first clamping jaw at the top and a first connecting plate arranged below the first clamping jaw, the first clamping jaw is used to clamp the wire, and the first connecting plate is connected to the conductor.

30. The broadband intelligent anti-vibration hammer according to claim 29, characterized in that: The cross section of the first clamping jaw is a semicircular ring.

31. The broadband intelligent anti-vibration hammer according to claim 29, characterized in that: The first connecting plate is in an inverted trapezoidal shape.

32. The broadband intelligent anti-vibration hammer according to claim 29, characterized in that: The independent tentacle comprises a second clamping jaw at the top and a second connecting plate arranged below the second clamping jaw, the second clamping jaw is used to clamp the wire, and the second connecting plate is detachably connected to the first connecting plate.

33. The broadband intelligent anti-vibration hammer according to claim 32, characterized in that: The first connecting plate and the second connecting plate are both provided with through holes, and fastening bolts are passed through the through holes. The first connecting plate and the second connecting plate are detachably connected by the fastening bolts.

34. The broadband intelligent anti-vibration hammer according to claim 33, characterized in that: A lever block is arranged at the bottom between the first connecting plate and the second connecting plate.

35. The broadband intelligent anti-vibration hammer according to claim 34, characterized in that: The lever block is welded to the first connecting plate.

36. The broadband intelligent anti-vibration hammer according to claim 28, characterized in that: The conductor includes a transition block and a steel strand block arranged below the transition block. The top of the transition block is connected to the annular tentacle. A through hole is arranged inside the steel strand block. The steel strand block is fastened to the steel strand cluster through the through hole inside the steel strand block.

37. The broadband intelligent anti-vibration hammer according to claim 28, characterized in that: When the vibration-absorbing hammer is installed on the conductor, the posture of the vibration-absorbing hammer head satisfies the posture of the upper and lower settings of the bending energy absorbers on both sides of the steel strand cluster.

38. A method for optimizing the design of a broadband intelligent anti-vibration hammer, which optimizes the design of the broadband intelligent anti-vibration hammer according to any one of claims 1 to 37, characterized in that: The broadband intelligent anti-vibration hammer optimization design method comprises: S1. Measure the vibration angle of the transmission line hanging point and maximum vibration frequency ; S2, setting the frequency of one of the vibration absorbing hammer heads to a first set value, setting the frequency of the other vibration absorbing hammer head to a second set value, and setting the frequency of the anti-vibration hammer when the vibration of the vibration absorbing hammer head is not considered to be a third set value; S3. After installing the anti-vibration hammer, measure the vibration angle at the hanging line again. When the re-measured vibration angle is less than the allowable vibration angle, the installation is completed. When the maximum vibration angle exceeds the allowable vibration angle, it should be measured again after adding a counterweight and keeping the anti-vibration hammer frequency unchanged, until the maximum vibration angle is less than the allowable vibration angle, the installation is completed.

39. The broadband intelligent anti-vibration hammer optimization design method according to claim 38, characterized in that: Vibration Angle for: ； In the above formula, is the wavelength of the vibration wave, is the amplitude of the vibration wave at the measuring point, is the distance between the measuring point and the clamp entrance.

40. The broadband intelligent anti-vibration hammer optimization design method according to claim 38, characterized in that: The first setting value is 0.1 .

41. The broadband intelligent anti-vibration hammer optimization design method according to claim 38, characterized in that: The second setting value is 0.5 .

42. The broadband intelligent anti-vibration hammer optimization design method according to claim 38, characterized in that: The third setting value is 0.8 .

43. The broadband intelligent anti-vibration hammer optimization design method according to claim 38, characterized in that: In step S3, a counterweight is added and the frequency of the anti-vibration hammer is kept unchanged. The specific method is as follows: the mass of each counterweight block is 50g, one counterweight block is added at a time, and the position of the adjusting nut is adjusted after adding the counterweight to ensure that the frequency of the anti-vibration hammer remains unchanged; Wherein, the adjusting device includes an adjusting bolt and an adjusting nut, the adjusting bolt is arranged on the inner wall of the groove of the hammer head, and one end of the bending energy absorber is passed through the adjusting bolt; the adjusting nut is arranged on the adjusting bolt, and the adjusting nut is located between the end head of the bending energy absorber and the inner wall of the groove.

Images