Mixed vibration suppression lantern ring for wind vibration control and mounting method of mixed vibration suppression lantern ring
By installing a mixed vibration suppression collar with pneumatic spoiler and mechanical vibration absorption functions on transmission wires, cables and steel pipe tower members, the problem of difficulty in effectively suppressing the vortex vibration of circular cross-sectional components in the prior art is solved, and multiple vibration reduction effects and convenient installation are achieved.
Patent Information
- Application Number
- CN202510303247.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-05-30
AI Technical Summary
The prior art is difficult to effectively suppress the vortex-exciting vibration of circular cross-sectional members under wind loads, especially in areas with high wind speeds, devices with a single vibration-absorbing mechanism cannot completely suppress vibration.
A hybrid vibration suppression ring is adopted, combining two vibration-absorbing mechanisms: pneumatic spoiler and mechanical vibration absorption. The collar consists of an inner ring assembly, an outer ring assembly and a vibration absorbing assembly. The pneumatic spoiler function is realized through the air flow spoiler through the air flow spoiler and the axial air flow discharge channel, and absorbs and cancels the vibration dynamic reaction through the mechanical action of the vibration absorbing assembly.
It realizes multiple vibration damping effects on transmission wires, cables and steel pipe tower rods waiting for vibration suppression, which can effectively suppress vortex vibration in areas with high wind speeds, ensure efficient and stable operation of power transmission, and has the characteristics of convenient installation.
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Figure CN120062202A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of vibration suppression collars, and particularly to a hybrid vibration suppression collar for wind vibration control and an installation method thereof. Background Art
[0002] Compared with angle steel towers, steel pipe towers have relative technical and economic advantages due to their advantages such as small wind pressure resistance, large sectional flexural stiffness, light tower body mass, simple structure, and clear force transmission, and are widely used in the field of power transmission projects, especially in the construction of ultra-high voltage transmission lines.
[0003] Transmission wires, cables, and steel pipe tower members are all prototype cross-section members. At present, there are many cases showing that due to the large Strouhal number of the circular cross-section, when the wind blows over the circular cross-section, vortices will alternately shed on both sides of the cross-section, and a periodic force perpendicular to the wind direction will be formed on the object, which is likely to cause vortex-induced vibration of the structure. When the vortex shedding frequency is close to the natural vibration frequency of the structure, more significant vortex-induced resonance will occur, and this vibration will be more intense when the slenderness ratio of the structure is large. Long-term periodic large amplitudes will lead to fatigue failure of the wires, iron towers, and bolts at their joints, and even tower collapse accidents, seriously affecting the safe operation of the transmission line and bringing huge economic losses.
[0004] At present, the main ideas for suppressing vortex-induced vibration of transmission wires, cables, and steel pipe tower members are mainly in two aspects. On the one hand, from the design perspective, more reasonable components are designed, such as increasing the sectional flexural stiffness, improving the slenderness ratio of the components, and improving the aerodynamic characteristics of the components. However, this method is difficult to apply to the existing large-scale steel pipe tower structures. On the other hand, passive control methods are used to control the micro-vibration of the structure. For example, damping devices or energy dissipation elements are added to the structure to change the dynamic characteristics of the structure. When the wind load acts, the damping device generates a large amount of damping and dissipates a large amount of energy, and the actuator generates a reverse acting force to reduce the dynamic response of the structure. Furthermore, spoilers or flow deflectors can be installed on the structure to disrupt the vortex shedding law, thereby suppressing the vortex-induced vibration of the structure. Compared with the former, the passive control method for the prototype cross-section structure to be controlled is more in line with the current development status of the power transmission engineering field in China.
[0005] Chinese Patent CN203703384U discloses a collar for suppressing vibration and noise of ship pipelines that can be adjusted. However, the inventor found that it is a non-detachable circular ring structure, which is inconvenient to install on the existing transmission tower structure, and it does not have a spoiler effect, and the vibration suppression efficiency is insufficient.
[0006] Chinese Patent CN111350725B provides a vortex-induced vibration suppression and drag reduction device. Its annular body has an opening penetrating its ring wall, which has the effect of increasing the critical wind speed of steel pipe vibration within a local range. However, in areas with relatively high wind speeds, the vibration suppression effect is not obvious, and it does not have a vibration absorption effect.
[0007] Chinese Patent CN111519969A provides a pneumatic vibration damping device for the aeolian vibration of steel pipe towers. It has rectangular holes opened on the cylindrical sleeve to achieve the purpose of flow disturbance and vibration damping. However, the inventor found that since its material is a polymer material and the fixing parts are prone to relative sliding, it is very difficult to be closely connected to the steel pipe during installation and fixation, and it is easy to cause loosening, resulting in a reduction in the vibration suppression rate.
[0008] Currently, the vibration control devices for the cross-wind vortex-induced resonance of circular cross-section members at home and abroad are mostly designed based on a single vibration damping mechanism, either a mechanical vibration damping mechanism (such as a damper) or a pneumatic vibration damping mechanism (such as a spoiler). However, the vibration of circular cross-section members at the actual engineering site is affected by various vibration excitation effects, including: vortex-induced resonance caused by the shedding frequency of the flow-around vortex being consistent with its own fundamental frequency; vortex-induced resonance caused by the shedding frequency of the wake vortex of the upstream circular cross-section being consistent with its own fundamental frequency; forced vibration of wind loads, etc. The severity of the vortex-induced resonance response is also greatly related to the connection conditions (rigid fixed connection, hinged connection, semi-rigid connection) at both ends of the member and the presence of pre-tension or pre-pressure. This leads to the fact that the vibration damping device made of a single vibration damping excitation can only reduce the vibration caused by a single vibration mechanism of the steel pipe member within a certain frequency range and cannot eliminate the vibration caused by other vibration mechanisms.
[0009] Therefore, how to provide a hybrid vibration suppression collar for wind vibration control and its installation method, which can integrate pneumatic flow disturbance and mechanical vibration absorption, can more efficiently suppress the vortex-induced vibration of vibration suppression objects such as transmission wires, stay cables, and steel pipe tower members, ensure the efficient and stable operation of power transmission, and has the characteristics of convenient installation, is an urgent problem to be solved by those skilled in the art. Summary of the Invention
[0010] In order to solve the defects existing in the prior art, the present invention provides a collar for vibration suppression objects with pneumatic flow disturbance and mechanical vibration absorption hybrid vibration suppression and its installation method without changing the original structural shape dimensions, cross-section stiffness, and force transmission path of vibration suppression objects such as transmission wires, stay cables, and steel pipe tower members. Compared with traditional vibration damping devices, this device integrates two vibration damping ideas of pneumatic flow disturbance and mechanical vibration absorption, can more efficiently suppress the vortex-induced vibration of vibration suppression objects such as transmission wires, stay cables, and steel pipe tower members, ensure the efficient and stable operation of power transmission, and has the advantage of convenient installation.
[0011] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0012] The present invention provides a hybrid vibration suppression collar for wind vibration control, comprising: a flow disturbance and vibration absorption assembly, which includes an inner ring assembly, an outer ring assembly, and a vibration absorption assembly;
[0013] The annular inner wall surface of the inner ring assembly is a fastening surface that can be sleeved and fastened on the outer peripheral wall of the object to be vibration-suppressed; the outer ring assembly is coaxially sleeved outside the inner ring assembly, and an axial air flow discharge channel is defined between the two;
[0014] A first card slot is formed on the outer peripheral wall of the inner ring assembly, and a second card slot corresponding to the first card slot is formed on the inner peripheral wall of the outer ring assembly; the vibration absorption assembly is supported between the inner ring assembly and the outer ring assembly, and its two ends along the radial direction of the inner ring assembly are respectively embedded into the first card slot and the second card slot to axially clamp and fix the inner ring assembly and the outer ring assembly;
[0015] Flow disturbance through holes communicating with the axial air flow discharge channel are formed on the peripheral wall of the outer ring assembly.
[0016] The hybrid vibration suppression collar of the present invention has dual functions of pneumatic flow disturbance and mechanical vibration absorption. During use, it is sleeved on the outer peripheral wall of objects to be vibration-suppressed such as transmission wires, stay cables, and steel pipe tower members. The whole hybrid vibration suppression collar is sleeved and fastened on the outer peripheral wall of the object to be vibration-suppressed through the fastening surface, without changing the original structural shape dimensions, sectional stiffness, and force transmission path of the object to be vibration-suppressed, and the structure is simple; the pneumatic flow disturbance function is realized by the outer flow disturbance through holes of the outer ring assembly, and the mechanical vibration absorption function is realized by the vibration absorption assembly inside the collar; specifically, when the wind blows through the hybrid vibration suppression collar of the present invention, the air flow flows into the axial air flow discharge channel inside the collar from the outer flow disturbance through holes, and then flows out from the channel openings on both sides of the axial air flow discharge channel along the axis to disturb the wind field, avoiding the formation of alternately shedding vortices on the leeward side of the steel pipe, which causes vortex-induced vibration of the steel pipe, so as to realize the vibration reduction function of pneumatic flow disturbance. Secondly, when the outer flow disturbance through holes and the axial air flow discharge channel fail to completely suppress the vibration of the steel pipe, the dynamic reaction generated by its vibration is absorbed by the vibration absorption assembly, and a reverse force is generated under its elastic action, causing the steel pipe to reset itself, greatly reducing the dynamic reaction of the steel pipe, so as to realize the vibration reduction function of mechanical vibration absorption. The two functions of pneumatic flow disturbance and mechanical vibration absorption complement each other, realizing multiple vibration reduction effects and being able to completely suppress the vortex vibration of the object to be vibration-suppressed.
[0017] As a further improvement of the above technical solution, a fixing assembly is further included; the vibration absorption assembly includes a plurality of vibration absorbers;
[0018] The inner ring assembly includes two semi-circular inner ring bodies that can be joined end to end to enclose a cylindrical inner ring; the outer ring assembly includes two semi-circular outer ring bodies that can be joined end to end to enclose a cylindrical outer ring; both between the two inner ring bodies and between the two outer ring bodies are fixedly connected through the fixing assembly;
[0019] The inner wall surfaces of the two inner ring bodies enclose to form the tightening surface;
[0020] A plurality of first clamping grooves are formed in the outer peripheral walls of the two inner ring bodies, and the plurality of first clamping grooves are arranged at intervals in the circumferential direction of the cylindrical inner ring; a plurality of second clamping grooves are formed in the inner peripheral walls of the two outer ring bodies corresponding to the plurality of first clamping grooves one by one; and both ends of the plurality of vibration absorption bodies in the radial direction of the cylindrical inner ring are correspondingly embedded in the plurality of first clamping grooves and the plurality of second clamping grooves.
[0021] The beneficial effects of the above technical solution are as follows: By connecting the two semi-circular inner ring bodies and the two semi-circular outer ring bodies end to end to form a cylindrical inner ring and a cylindrical outer ring, and combining them into a circular hybrid vibration suppression collar, it is convenient to install on the original body to be vibration suppressed. A plurality of vibration absorption bodies are arranged at intervals in the circumferential direction between the inner ring body and the outer ring body, so as to achieve mechanical vibration suppression in multiple directions; each vibration absorption body is embedded and positioned in the corresponding first clamping groove and second clamping groove, which can prevent it from shifting, so as to ensure the stability of the vibration suppression performance in each direction.
[0022] As a further improvement of the above technical solution, the fixing assembly includes an inner ring fixing assembly and an outer ring fixing assembly;
[0023] The outer side wall of one end of the inner ring body in the circumferential direction extends outward in the circumferential direction to form an arc-shaped clamping edge one, and the outer side wall of the other end of the inner ring body in the circumferential direction has an arc-shaped notch to form an arc-shaped clamping edge two; when the two inner ring bodies are connected end to end, the clamping edge one of one inner ring body is adaptively clamped with the clamping edge two of the other inner ring body to form a combined cylindrical inner ring; the inner ring fixing assembly is fixedly connected to the clamping edge one and the clamping edge two;
[0024] The outer side wall of one end of the outer ring body in the circumferential direction extends outward in the circumferential direction to form an arc-shaped clamping edge three, and the outer side wall of the other end of the outer ring body in the circumferential direction has an arc-shaped notch to form an arc-shaped clamping edge four; when the two outer ring bodies are connected end to end, the clamping edge three of one outer ring body is adaptively clamped with the clamping edge four of the other outer ring body to form a combined cylindrical outer ring; the outer ring fixing assembly is fixedly connected to the clamping edge three and the clamping edge four.
[0025] The beneficial effects of the above technical solution are as follows: By designing the arc-shaped clamping edges I, II, III, and IV, the radial clamping of two relatively arranged inner ring bodies and outer ring bodies can be achieved; during installation, two groups of inner ring bodies and outer ring bodies are sleeved on the outer peripheral wall of the vibration suppression object to be installed, and are distributed on both sides of the vibration suppression object to be installed. It is necessary to move the two groups of inner ring bodies and outer ring bodies relative to each other along the length direction of the vibration suppression object to be installed; so that the clamping edge I gradually overlaps and clamps with the corresponding clamping edge II, and the clamping edge III gradually overlaps and clamps with the corresponding clamping edge IV. The arc-shaped clamping edge structure can prevent the radial separation between the two inner ring bodies and the two outer ring bodies.
[0026] As a further improvement of the above technical solution, an adhesive layer for adhesively fixing to the first slot and the second slot is adhered to the outer wall of the vibration absorber.
[0027] The beneficial effects of the above technical solution are as follows: The adhesive layer adhered to the outer wall of the vibration absorber is used to temporarily adhesively fix the vibration absorber in the first slot and the second slot, so that the inner ring body and the outer ring body coaxially arranged outside the inner ring body are adhered together through the vibration absorber, forming a semi-circular hybrid vibration suppression collar. Two semi-circular hybrid vibration suppression collars can be enclosed and butted to form a complete circular hybrid vibration suppression collar, achieving the purpose of facilitating transportation and improving the installation efficiency.
[0028] As a further improvement of the above technical solution, the distance between the clamping edge I and the clamping edge II is greater than the inner diameter of the inner ring body; the distance between the clamping edge III and the clamping edge IV is greater than the inner diameter of the inner ring body.
[0029] The beneficial effects of the above technical solution are as follows: The vibration suppression object to be installed in the installed state generally does not have an open end. The closed vibration suppression collar can only be axially inserted and installed from the end of the vibration suppression object to be installed, and it is not applicable to the vibration suppression object to be installed in the installed state; the purpose of the present invention to design that the distance between the clamping edge I and the clamping edge II is greater than the inner diameter of the inner ring body and the distance between the clamping edge III and the clamping edge IV is greater than the inner diameter of the inner ring body is: to enable the semi-circular hybrid vibration suppression collar formed by the inner ring body and the outer ring body to be smoothly coaxially sleeved on the outer peripheral wall of the vibration suppression object to be installed along the radial direction, so as to be applicable to quickly and conveniently installing the vibration suppression collar on the existing vibration suppression object to be installed in the installed state.
[0030] As a further improvement of the above technical solution, the vibration absorber includes an elastic outer cylinder and an elastic inner cylinder; the elastic outer cylinder is coaxially sleeved and fixed on the outer peripheral wall of the elastic inner cylinder; the elastic outer cylinder is arranged along the axis of the cylindrical inner ring in parallel and is clamped in the corresponding first slot and second slot;
[0031] A plurality of the elastic outer cylinders are arranged at intervals along the circumferential direction of the cylindrical inner ring.
[0032] The beneficial effects of the above technical solution are as follows: The elastic outer cylinder and the elastic inner cylinder form a double-elastic vibration suppression layer, which can improve the vibration suppression effect; the spaced arrangement between adjacent elastic outer cylinders can increase the space of the axial air flow discharge channel and improve the aerodynamic turbulence effect.
[0033] As a further improvement of the above technical solution, the first slot is a rhombic groove body arranged along the length direction of the elastic outer cylinder; the bottom wall of the first slot and the side wall along the circumferential direction of the cylindrical inner ring can be in linear contact with the outer peripheral wall of the corresponding elastic outer cylinder to form a linear vibration pressing part.
[0034] The beneficial effects of the above technical solution are as follows: When the body to be vibration-suppressed vibrates, it drives the inner ring body to vibrate. The bottom wall and side wall of the first slot of the inner ring body press against the outer peripheral wall of the elastic outer cylinder to cause it to deform. The deformed elastic outer cylinder causes the elastic inner cylinder to be stressed and deformed, thereby realizing energy absorption and shock reduction; the design of the linear vibration pressing part can increase the pressure on the elastic outer cylinder, so that the elastic outer cylinder and the elastic inner cylinder can have a small local contour deformation during small-amplitude micro-vibration and a significant overall contour deformation during large-amplitude severe vibration, so as to fully exert the energy absorption effect of the elastic outer cylinder and the elastic inner cylinder.
[0035] As a further improvement of the above technical solution, an elastic cushion layer is bonded to the tightening surface of the inner ring assembly.
[0036] The beneficial effects of the above technical solution are as follows: The elastic cushion layer can maintain a tightly and stably connected state between the tightening surface and the outer peripheral wall of the body to be vibration-suppressed, and can prevent the vibration suppression collar from shifting due to loosening of the fit caused by thermal expansion and contraction.
[0037] As a further improvement of the above technical solution, there are multiple air flow disturbance holes arranged at intervals along the circumferential direction of the outer ring assembly; the air flow disturbance holes are any one of a rectangle, a circle, an ellipse, and a rhombus.
[0038] The beneficial effects of the above technical solution are as follows: Multiple air flow disturbance holes arranged at intervals along the circumferential direction of the outer ring assembly can adapt to air flows in multiple directions.
[0039] On the other hand, the present invention provides an installation method for a hybrid vibration suppression collar for wind vibration control, using the above-mentioned hybrid vibration suppression collar for wind vibration control; the method includes the following steps:
[0040] Step 1: Assemble the turbulence absorption and vibration suppression component in advance; arrange the outer ring body corresponding to the outside of the inner ring body coaxially, bond the two together through the vibration absorption body, and bond an elastic cushion layer to the inner wall surface of the inner ring body to form a semi-circular hybrid vibration suppression collar;
[0041] Specifically, an elastic cushion layer is bonded to the inner wall surface of the inner ring body, and a vibration absorber is placed in the first card slot. The vibration absorber is bonded and fixed in the first card slot through an adhesive layer coated on the outer wall; the outer ring body is coaxially arranged corresponding to the outside of the inner ring body, and the vibration absorber is correspondingly bonded and fixed to the second card slot to form a semi-circular hybrid vibration suppression collar.
[0042] Step 2: Press two semi-circular hybrid vibration suppression collars against the vibration-suppressing body radially and coaxially sleeve them on the outer peripheral wall of the same vibration-suppressing body; slide and adjust the semi-circular hybrid vibration suppression collars along the length direction of the vibration-suppressing body so that the two semi-circular hybrid vibration suppression collars are adaptively clamped end to end to enclose and form a circular hybrid vibration suppression collar. At this time, the tightening surface of the formed circular hybrid vibration suppression collar is pressed and fixed against the outer peripheral wall of the vibration-suppressing body.
[0043] Step 3: Fix and connect two corresponding inner ring bodies together through an inner ring fixing component; fix and connect two corresponding outer ring bodies together through an outer ring fixing component.
[0044] The installation method of a hybrid vibration suppression collar for wind vibration control provided by the present invention is convenient for single-person operation. That is, when installing a hybrid vibration suppression collar on a vibration-suppressing body on an existing transmission line, cable-stayed device and tower, only one construction worker needs to carry multiple pre-assembled semi-circular hybrid vibration suppression collars, hold one semi-circular hybrid vibration suppression collar in each hand, and through two-handed operation, the two semi-circular hybrid vibration suppression collars can be butted and buckled on the vibration-suppressing body. The installation accuracy is high, the operation is convenient, the installation efficiency can be greatly improved, the labor cost can be reduced, and it has great popularization and application value.
[0045] It can be seen from the above technical solutions that compared with the prior art, the present invention discloses a hybrid vibration suppression collar for wind vibration control and its installation method, which has the following advantages and beneficial effects:
[0046] 1. Compared with the traditional vibration reduction device of steel pipe towers, the hybrid vibration suppression collar of the present invention has dual effects of aerodynamic flow disturbance and mechanical vibration absorption, greatly improving the vibration suppression efficiency.
[0047] 2. The present invention does not change the structural shape size, cross-sectional stiffness and force transmission path of the original vibration-suppressing body of the steel pipe tower, and has a simple structure. Especially during construction and installation, it can be quickly operated by a single person, greatly reducing the workload of workers.
[0048] 3. The hybrid vibration suppression collar of the present invention can achieve radial fixation by end-to-end clamping combination of two semi-circular hybrid vibration suppression collars. At this time, the circular hybrid vibration suppression collar can be tightly fastened on the vibration-suppressing body, releasing the hands of the construction workers, and then axially fixed through the fixing component. The installation operation is fast and the connection is stable; the semi-circular hybrid vibration suppression collars are clamped along the extension parts and clamped with each other. The process is simple, easy to manufacture, and easy to form a production line, and it can be applied to various circular cross-section structural members and on-site conditions.
[0049] 4. The hybrid vibration suppression collar of the present invention is not only applicable to steel pipe towers in the field of power transmission projects, but also applicable to the wind-induced vibration of other cylindrical members, such as steel pipe signal towers, wind power tower barrels, and cables with larger diameters.
[0050] 5. The hybrid vibration suppression collar of the present invention has a certain mass. According to the vibration characteristics of the structure or component, the vibration damping device can be installed at the position with a relatively large vibration displacement. By using multiple vibration damping mechanisms such as mechanical vibration absorption, pneumatic flow disturbance, and adjustment of component mass distribution, vibration control is carried out on the part with the most intense wind-induced vibration response of the structure, and the vibration control effect is obvious.
[0051] 6. The mechanical vibration damping parameters of the hybrid vibration suppression collar of the present invention are adjustable: according to the known mass, damping, stiffness and other parameters of the structure or component, a vibration damping device with appropriate mass, damping and stiffness can be selected, so as to carry out targeted parameter control on the vibration characteristics of transmission wires, cables and steel pipe components.
[0052] 7. The pneumatic vibration damping parameters are adjustable: according to the parameters such as the frequency and wind speed of the monsoon on site, the shape and size of the flow disturbance holes can be adjusted, so as to ensure the best pneumatic vibration damping control effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0053] 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. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative work.
[0054] Figure 1 Schematic diagram of the overall structure of a hybrid vibration suppression collar for wind vibration control of the present invention;
[0055] Figure 2 Schematic diagram of the assembled state of the inner ring body, outer ring body and vibration absorption body of a hybrid vibration suppression collar for wind vibration control of the present invention;
[0056] Figure 3 Schematic diagram of the tight fitting surface of the inner ring body of a hybrid vibration suppression collar for wind vibration control of the present invention;
[0057] Figure 4 Radial sectional view of the inner ring body and outer ring body of a hybrid vibration suppression collar for wind vibration control of the present invention;
[0058] Figure 5 Radial sectional view of the first slot and the second slot of a hybrid vibration suppression collar for wind vibration control of the present invention;
[0059] Figure 6Schematic diagram of the axial section of the vibration absorption component of a hybrid vibration suppression collar for wind vibration control according to the present invention;
[0060] Figure 7 Schematic diagram of the structure of the first connecting plate of a hybrid vibration suppression collar for wind vibration control according to the present invention;
[0061] Figure 8 Schematic diagram of the structure of the second connecting plate of a hybrid vibration suppression collar for wind vibration control according to the present invention;
[0062] Figure 9 Schematic diagram of the installation state of a hybrid vibration suppression collar for wind vibration control on a steel pipe tower;
[0063] Figure 10 Schematic diagram of the installation state of a hybrid vibration suppression collar for wind vibration control on an object to be vibration-suppressed;
[0064] In the figure: 1. Turbulence vibration absorption component; 11. Inner ring component; 111. Inner ring body; 1111. Tightening surface; 1112. First clamping groove; 1112a. Linear vibration pressing part one; 1113. First clamping edge; 1114. Second clamping edge; 1115. Elastic cushion layer; 1116. First notch; 12. Outer ring component; 121. Outer ring body; 1211. Second clamping groove; 1211a. Linear vibration pressing part two; 1212. Turbulence through hole; 1213. Third clamping edge; 1214. Fourth clamping edge; 1215. Second notch; 13. Vibration absorption component; 131. Vibration absorption body; 1311. Elastic outer cylinder; 1312. Elastic inner cylinder; 132. Adhesive layer; 14. Axial air flow discharge channel; 2. Fixing component; 21. Inner ring fixing component; 211. First connecting plate; 222. First bolt; 22. Outer ring fixing component; 221. Second connecting plate; 222. Second bolt; 3. Object to be vibration-suppressed. Detailed implementation manners
[0065] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.
[0066] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing 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 a limitation of the present invention.
[0067] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.
[0068] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. 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.
[0069] As Figures 1 to 10 shown, a hybrid vibration suppression collar for wind vibration control includes:
[0070] A turbulence absorption and vibration suppression component 1, which includes an inner ring component 11, an outer ring component 12, and a vibration absorption component 13;
[0071] The annular inner wall surface of the inner ring component 11 is a fastening surface 1111 that can be sleeved and fastened on the outer peripheral wall of the object to be vibration-suppressed; the outer ring component 12 is coaxially sleeved outside the inner ring component 11, and an axial air flow discharge channel 14 is defined between the two;
[0072] A first slot 1112 is formed on the outer peripheral wall of the inner ring component 11, and a second slot 1211 corresponding to the first slot 1112 is formed on the inner peripheral wall of the outer ring component 12; the vibration absorption component 13 is supported between the inner ring component 11 and the outer ring component 12, and its two ends along the radial direction of the inner ring component 11 are respectively embedded into the first slot 1112 and the second slot 1211 to axially clamp and fix the inner ring component 11 and the outer ring component 12;
[0073] Turbulence through holes 1212 communicating with the axial air flow discharge channel 14 are formed on the peripheral wall of the outer ring component 12.
[0074] The hybrid vibration suppression collar of the present invention has dual functions of pneumatic flow disturbance and mechanical vibration absorption. When in use, it is sleeved on the outer peripheral wall of a circular object to be vibration-suppressed (such as a transmission wire, a stay cable, and a steel pipe tower member, etc.). The annular inner wall surface of the inner ring assembly 11 is adapted to the outer peripheral wall of the circular object to be vibration-suppressed. The whole hybrid vibration suppression collar is fastened and fixed on the outer peripheral wall of the object to be vibration-suppressed through the fastening surface 1111, without changing the structural shape size, cross-sectional stiffness, and force transmission path of the original object to be vibration-suppressed, and the structure is simple. The pneumatic flow disturbance function is realized by the outer ring flow disturbance through holes 1212 of the outer ring assembly 12, and the mechanical vibration absorption function is realized by the vibration absorption assembly 13 inside the collar. Specifically, when the wind blows through the hybrid vibration suppression collar of the present invention, the air flow flows into the axial air flow discharge channel 14 inside the collar from the outer ring flow disturbance through holes 1212, and then flows out along the axial direction from the channel openings on both sides of the axial air flow discharge channel 14 to disturb the wind field, avoiding the formation of alternately shedding vortices on the leeward side of the steel pipe, which causes the vortex-induced vibration of the steel pipe, so as to realize the vibration reduction function of pneumatic flow disturbance. Secondly, when the outer ring flow disturbance through holes 1212 and the axial air flow discharge channel 14 fail to completely suppress the vibration of the steel pipe, the dynamic reaction generated by its vibration is absorbed by the vibration absorption assembly, and a reverse acting force is generated under its elastic action, so that the steel pipe returns to its original position by itself, greatly reducing the dynamic reaction of the steel pipe, so as to realize the vibration reduction function of mechanical vibration absorption. The two functions of pneumatic flow disturbance and mechanical vibration absorption complement each other, realizing multiple vibration reduction effects and being able to completely suppress the vortex vibration of the object to be vibration-suppressed.
[0075] Specifically, the optimal pneumatic flow disturbance effect can be achieved by designing the shape and size of the optimal flow disturbance through holes 1212.
[0076] In some embodiments, the first clamping groove 1112 can be an annular groove body circumferentially opened on the outer peripheral wall of the inner ring assembly 11; the second clamping groove 1211 can be an annular groove body circumferentially opened on the inner peripheral wall of the outer ring assembly 12; the first clamping groove 1112 and the second clamping groove 1211 are rectangular in the radial cross-section of the inner ring assembly 11 or the outer ring assembly 12.
[0077] In some embodiments, it further includes a fixing component 2; the vibration absorption assembly 13 includes a plurality of vibration absorbers 131;
[0078] The inner ring assembly 11 includes two semi-circular inner ring bodies 111 that can be joined end to end to enclose a cylindrical inner ring; the outer ring assembly 12 includes two semi-circular outer ring bodies 121 that can be joined end to end to enclose a cylindrical outer ring; both between the two inner ring bodies 111 and between the two outer ring bodies 121 are fixedly connected through the fixing component 2;
[0079] The inner wall surfaces of the two inner ring bodies 111 enclose to form a fastening surface 1111;
[0080] A plurality of first card slots 1112 are provided on the outer peripheral walls of the two inner ring bodies 111, and the plurality of first card slots 1112 are arranged at intervals along the circumferential direction of the cylindrical inner ring; a plurality of second card slots 1211 are provided on the inner peripheral walls of the two outer ring bodies 121 corresponding to the plurality of first card slots 1112 one by one; both ends of the plurality of vibration absorbers 131 along the radial direction of the cylindrical inner ring are correspondingly embedded in the plurality of first card slots 1112 and the plurality of second card slots 1211.
[0081] The cylindrical inner ring and the cylindrical outer ring are formed by connecting the two semi-circular inner ring bodies 111 and the two semi-circular outer ring bodies 121 end to end, and the circular hybrid vibration suppression collar is combined, which is convenient for installation on the original body to be vibration-suppressed. A plurality of vibration absorbers 131 are arranged at intervals along the circumferential direction between the inner ring body 111 and the outer ring body 121, which can achieve mechanical vibration suppression in multiple directions; each vibration absorber 131 is embedded and positioned in the corresponding first card slot 1112 and second card slot 1211, which can prevent its displacement to ensure the stability of the vibration suppression performance in each direction.
[0082] Specifically, the transmission wire, stay cable and steel pipe tower member installed with the device of the present invention are simplified into a 2-degree-of-freedom lumped mass model, and its motion differential equation is:
[0083]
[0084] Where M, C, and K are the mass matrix, damping matrix, and stiffness matrix of the system respectively, and x(t) is the system displacement vector. When the system undergoes free vibration, the external force vector is 0. At this time, it can be assumed that the solution of the differential equation is:
[0085]
[0086] Where ω and α are the natural frequency and phase of the system respectively. Substitute the above solution into the system motion differential equation and substitute the external force 0 vector to derive the solution equation for the frequency equation of the lumped mass model:
[0087] -ω 2 M + K = 0
[0088] Where the stiffness matrix K and the mass matrix M can be determined by the relevant structural parameters of the hybrid vibration suppression collar described in the present invention. By solving the above determinant, the first two-order model natural frequencies are obtained. By reasonably matching the structural parameters, the natural frequencies of the hybrid vibration suppression sleeve and the transmission wire, stay cable, and steel pipe tower round steel member can be made as close as possible, so as to achieve the maximum vibration suppression effect.
[0089] In some embodiments, the fixing assembly 2 includes an inner ring fixing assembly 21 and an outer ring fixing assembly 22;
[0090] The outer side wall at one end of the inner ring body 111 in the circumferential direction extends outward in the circumferential direction to form an arc-shaped clamping edge one 1113, and the outer side wall at the other end of the inner ring body 111 in the circumferential direction has an arc-shaped notch one 1116 to form an arc-shaped clamping edge two 1114; when two inner ring bodies 111 are connected end to end, the clamping edge one 1113 of one inner ring body 111 is adaptively clamped with the clamping edge two 1114 of the other inner ring body 111 to form a cylindrical inner ring in combination; the inner ring fixing component 21 is fixedly connected to the clamping edge one 1113 and the clamping edge two 1114.
[0091] The outer side wall at one end of the outer ring body 121 in the circumferential direction extends outward in the circumferential direction to form an arc-shaped clamping edge three 1213, and the outer side wall at the other end of the outer ring body 121 in the circumferential direction has an arc-shaped notch two 1215 to form an arc-shaped clamping edge four 1214; when two outer ring bodies 121 are connected end to end, the clamping edge three 1213 of one outer ring body 121 is adaptively clamped with the clamping edge four 1214 of the other outer ring body 121 to form a cylindrical outer ring in combination; the outer ring fixing component 22 is fixedly connected to the clamping edge three 1213 and the clamping edge four 1214.
[0092] By designing the arc-shaped clamping edge one 1113, clamping edge two 1114, clamping edge three 1213 and clamping edge four 1214, the radial clamping of two relatively arranged inner ring bodies 111 and outer ring bodies 121 can be realized; during installation, two groups of inner ring bodies 111 and outer ring bodies 121 are both sleeved on the outer peripheral wall of the body to be vibration-damped and are distributed on both sides of the body to be vibration-damped, and it is necessary to move the two groups of inner ring bodies 111 and outer ring bodies 121 relatively along the length direction of the body to be vibration-damped; so that the clamping edge one 1113 and the corresponding clamping edge two 1114, the clamping edge three 1213 and the corresponding clamping edge four 1214 are gradually overlapped and clamped together, and the arc-shaped clamping edge structure can prevent the radial separation between the two inner ring bodies 111 and the two outer ring bodies 121.
[0093] In addition, it should be noted that: The hybrid vibration suppression collar of the present invention has a certain mass. According to the vibration characteristics of the structure, the hybrid vibration suppression collar can be installed at a position with a relatively large vibration displacement. By using multiple vibration reduction mechanisms such as mechanical vibration absorption, pneumatic flow disturbance, and adjustment of component mass distribution, vibration control is carried out on the most excited part of the structural wind-induced vibration, and the vibration control effect is obvious. The mechanical vibration reduction parameters of the hybrid vibration suppression sleeve of the present invention are adjustable: According to the known mass, damping, stiffness and other parameters of the structure or component, a vibration reduction device with appropriate mass, damping, and stiffness can be selected, so as to carry out targeted parameter control on the vibration characteristics of transmission wires, stay cables and steel pipe components. The pneumatic vibration reduction parameters are adjustable: According to parameters such as the frequency and wind speed of the monsoon on site, the shape and size of the spoiler holes can be adjusted, so as to ensure the best pneumatic vibration reduction control effect; The hybrid vibration suppression sleeve of the present invention includes multiple vibration reduction mechanisms, but is exquisitely designed, has simple structural components, and is inexpensive, and can be applied to various types and sizes of structural components with circular cross-sections and on-site conditions.
[0094] Specifically, the clamping edge one 1113, the clamping edge two 1114 and the inner ring body 111 are all of an integral structure; the clamping edge three 1213, the clamping edge four 1214 and the outer ring body 121 are all of an integral structure; the materials of the inner ring body 111, the outer ring body 121 and the fixing component 2 are the same as those of the vibration-suppressing body to be controlled to prevent electrochemical corrosion caused by contact.
[0095] In some embodiments, an adhesive layer 132 for bonding and fixing with the clamping groove one 1112 and the clamping groove two 1211 is adhered to the outer wall of the vibration absorber 131.
[0096] The adhesive layer adhered to the outer wall of the vibration absorber 131 is used to temporarily bond and fix the vibration absorber 131 in the clamping groove one 1112 and the clamping groove two 1211, so that the inner ring body 111 and the outer ring body 121 arranged coaxially outside the inner ring body 111 are adhered together through the vibration absorber 131, forming a semi-circular hybrid vibration suppression collar. Two semi-circular hybrid vibration suppression collars can be enclosed and butted to form a complete circular hybrid vibration suppression collar, achieving the purpose of facilitating transportation and improving the installation efficiency.
[0097] In some embodiments, the distance between the clamping edge one 1113 and the clamping edge two 1114 is greater than the inner diameter of the inner ring body 111; the distance between the clamping edge three 1213 and the clamping edge four 1214 is greater than the inner diameter of the inner ring body 111.
[0098] The object to be vibration-damped in the installed state generally does not have an open end, and the closed vibration-damping collar can only be axially inserted and installed from the end of the object to be vibration-damped, and cannot be applied to the object to be vibration-damped in the installed state; the purpose of designing that the distance between the first clamping edge 1113 and the second clamping edge 1114 is greater than the inner diameter of the inner ring body 111, and the distance between the third clamping edge 1213 and the fourth clamping edge 1214 is greater than the inner diameter of the inner ring body 111 is: to enable the semi-circular hybrid vibration-damping collar formed by the combination of the inner ring body 111 and the outer ring body 121 to be smoothly coaxially sleeved on the outer peripheral wall of the object to be vibration-damped along the radial direction of the object to be vibration-damped, so as to be applicable to quickly and conveniently install the vibration-damping collar on the object to be vibration-damped in the existing installed state.
[0099] Specifically, bolt through holes are axially opened along the first clamping edge 1113, the second clamping edge 1114, the third clamping edge 1213 and the fourth clamping edge 1214 in parallel with the inner ring assembly 11. The inner ring fixing assembly 21 includes a first connecting plate 211 and a first bolt 212; the outer ring fixing assembly 22 includes a second connecting plate 221 and a second bolt 222. The two first connecting plates 211 are symmetrically arranged at both axial ends of the first clamping edge 1113 and the second clamping edge 1114 and are tightly connected by the first bolts 212 passing through the bolt through holes of the first clamping edge 1113 and the second clamping edge 1114; the second connecting plate 221 is symmetrically arranged at both axial ends of the third clamping edge 1213 and the fourth clamping edge 1214 and is tightly connected by the second bolts 222 passing through the bolt through holes of the third clamping edge 1213 and the fourth clamping edge 1214.
[0100] In some embodiments, the vibration absorber 131 includes an elastic outer cylinder 1311 and an elastic inner cylinder 1312; the elastic outer cylinder 1311 is coaxially sleeved and fixed on the outer peripheral wall of the elastic inner cylinder 1312; the elastic outer cylinder 1311 is arranged along the axial direction parallel to the cylindrical inner ring and is clamped in the corresponding first slot 1112 and second slot 1211;
[0101] A plurality of elastic outer cylinders 1311 are arranged at intervals along the circumferential direction of the cylindrical inner ring.
[0102] The elastic outer cylinder 1311 and the elastic inner cylinder 1312 form a double-elastic vibration-damping layer, which can improve the vibration-damping effect; the interval arrangement between adjacent elastic outer cylinders 1311 can increase the space of the axial air flow discharge channel 14 and improve the pneumatic turbulence effect.
[0103] Specifically, the inner wall of the elastic outer cylinder 1311 is adaptively bonded and fixed to the outer wall of the elastic inner cylinder 1312. The elastic inner cylinder 1312 is made of an elastic rubber material that is corrosion-resistant and aging-resistant; the elastic outer cylinder 1311 is made of an elastic aluminum alloy material. It should be noted that: the optimal mechanical vibration absorption effect can be achieved by optimizing the mass stiffness parameters of the elastic outer cylinder (1311) and the elastic inner cylinder (1312).
[0104] In some embodiments, the first card slot 1112 is a rhombic groove body and is arranged along the length direction of the elastic outer cylinder 1311; the bottom wall of the first card slot 1112 and the side wall along the circumferential direction of the cylindrical inner ring can be in linear contact with the outer peripheral wall of the corresponding elastic outer cylinder 1311 to form a first linear vibration pressing portion 1112a;
[0105] The second card slot 1211 is also a rhombic groove body and is arranged along the length direction of the elastic outer cylinder 1311; the bottom wall of the second card slot 1211 and the side wall along the circumferential direction of the cylindrical inner ring can be in linear contact with the outer peripheral wall of the corresponding elastic outer cylinder 1311 to form a second linear vibration pressing portion 1211a.
[0106] When the body to be vibration-damped vibrates, it drives the inner ring body 111 to vibrate. The bottom wall and side wall of the first card slot 1112 of the inner ring body 111 press against the outer peripheral wall of the elastic outer cylinder 1311 to cause it to deform. The deformed elastic outer cylinder 1311 causes the elastic inner cylinder 1312 to be stressed and deformed, thereby achieving energy absorption and vibration damping. By designing the contact parts of the first card slot 1112 and the second card slot 1211 with the elastic outer cylinder 1311 as the first linear vibration pressing portion 1112a and the second linear vibration pressing portion 1211a, the pressure on the elastic outer cylinder 1311 can be increased, so that the elastic outer cylinder 1311 and the elastic inner cylinder 1312 can have a slight deformation of the local contour during small-amplitude micro-vibration and an obvious deformation of the overall contour during large-amplitude severe vibration, so as to fully exert the energy absorption effect of the elastic outer cylinder 1311 and the elastic inner cylinder 1312.
[0107] Specifically, the cross-sections of the first card slot 1112 and the second card slot 1211 perpendicular to the axial direction of the cylindrical inner ring are both rectangular or trapezoidal. The elastic outer cylinder and the elastic inner cylinder can select a vibration damping device with appropriate mass, damping, and stiffness according to known parameters such as the mass, damping, and stiffness of the structure or component. At the same time, the size of the spoiler holes can be adjusted according to parameters such as the frequency and wind speed of the on-site monsoon, so as to perform targeted parameter control on the vibration characteristics of transmission wires, stay cables, and steel pipe components, and ensure the best aerodynamic vibration damping control effect.
[0108] Specifically, an adhesive layer 132 can be adhered to the outer peripheral wall and both end walls of the elastic outer cylinder 1311 for temporary bonding and fixing with the first card slot 1112 and the second card slot 1211.
[0109] In some embodiments, an elastic cushion layer 1115 is adhered to the tightening surface 1111 of the inner ring assembly 11.
[0110] The elastic cushion layer 1115 can maintain a state of tight and stable connection between the tightening surface 1111 and the outer peripheral wall of the body to be vibration-damped, and can prevent the vibration damping collar from shifting due to loosening of the fit caused by thermal expansion and contraction.
[0111] In some embodiments, there are multiple flow disturbance through-holes 1212, which are circumferentially spaced along the outer ring component 12; the flow disturbance through-holes 1212 are any one of rectangular, circular, elliptical and rhombic shapes.
[0112] The multiple flow disturbance through-holes 1212 circumferentially spaced along the outer ring component 12 can adapt to airflows in multiple directions.
[0113] Another embodiment provides an installation method for a hybrid vibration suppression collar for wind vibration control, using a hybrid vibration suppression collar for wind vibration control; the method includes the following steps:
[0114] Step 1: Pre-assemble the flow disturbance and vibration absorption component 1; arrange the outer ring body 121 corresponding to the outside of the inner ring body 111 coaxially, bond the two together through the vibration absorption body 131, and bond an elastic cushion layer on the inner wall surface of the inner ring body 111 to form a semi-circular hybrid vibration suppression collar.
[0115] Specifically, bond an elastic cushion layer on the inner wall surface of the inner ring body 111, place the vibration absorption body 131 in the first clamping groove 1112, and the vibration absorption body 131 is adhesively fixed in the first clamping groove 1112 through the adhesive layer coated on its outer wall; the outer ring body 121 is arranged coaxially corresponding to the outside of the inner ring body 111, and the vibration absorption body 131 is adhesively fixed corresponding to the second clamping groove 1211 to form a semi-circular hybrid vibration suppression collar.
[0116] Step 2: Hold a semi-circular hybrid vibration suppression collar in each hand, and press the two semi-circular hybrid vibration suppression collars radially against the vibration suppression object and coaxially sleeved on the outer peripheral wall of the same vibration suppression object; slide and adjust the semi-circular hybrid vibration suppression collar along the length direction of the vibration suppression object so that the two semi-circular hybrid vibration suppression collars are adaptively clamped end to end to enclose and form a circular hybrid vibration suppression collar. At this time, the fastening surface 1111 of the combined circular hybrid vibration suppression collar presses tightly against the outer peripheral wall of the vibration suppression object.
[0117] Step 3: Fix and connect the two corresponding inner ring bodies 111 together through the inner ring fixing component 21; fix and connect the two corresponding outer ring bodies 121 together through the outer ring fixing component 22.
[0118] The installation method for a hybrid vibration suppression collar for wind vibration control provided by the present invention is convenient for single-person operation. That is, when installing a hybrid vibration suppression collar on a vibration suppression object on an existing transmission line, cable device and tower, only one construction worker needs to carry multiple pre-assembled semi-circular hybrid vibration suppression collars, hold a semi-circular hybrid vibration suppression collar in each hand, and can butt and fasten the two semi-circular hybrid vibration suppression collars on the vibration suppression object through two-handed operation. The installation accuracy is high, the operation is convenient, the installation efficiency can be greatly improved, the labor cost can be reduced, and it has great popularization and application value.
[0119] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0120] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.
Claims
1. A hybrid vibration suppression collar for wind vibration control, characterized in that: include: A spoiler vibration absorption component (1), the spoiler vibration absorption component (1) comprising an inner ring component (11), an outer ring component (12) and a vibration absorption component (13); The annular inner wall surface of the inner ring component (11) is a clamping surface (1111) that can be clamped and fixed on the outer peripheral wall of the vibration suppression body; the outer ring component (12) is coaxially sleeved outside the inner ring component (11) and an axial airflow discharge channel (14) is defined between the two; The outer peripheral wall of the inner ring component (11) is provided with a first clamping groove (1112), and the inner peripheral wall of the outer ring component (12) is provided with a second clamping groove (1211) corresponding to the first clamping groove (1112); the vibration absorbing component (13) is supported between the inner ring component (11) and the outer ring component (12), and its two ends along the radial direction of the inner ring component (11) are respectively embedded in the first clamping groove (1112) and the second clamping groove (1211) to axially clamp and fix the inner ring component (11) and the outer ring component (12); The peripheral wall of the outer ring component (12) is provided with a turbulent flow hole (1212) connected to the axial airflow discharge channel (14).
2. A hybrid vibration suppression ring for wind vibration control according to claim 1, characterized in that: It also includes a fixing component (2); the vibration absorbing component (13) includes a plurality of vibration absorbing bodies (131); The inner ring assembly (11) comprises two semicircular inner ring bodies (111) connected end to end to form a cylindrical inner ring; the outer ring assembly (12) comprises two semicircular outer ring bodies (121) connected end to end to form a cylindrical outer ring; the two inner ring bodies (111) and the two outer ring bodies (121) are fixedly connected by the fixing assembly (2); The inner wall surfaces of the two inner ring bodies (111) are enclosed to form the tightening hoop surface (1111); The outer circumferential walls of the two inner ring bodies (111) are each provided with a plurality of the first card grooves (1112), and the plurality of the first card grooves (1112) are arranged at intervals along the circumference of the cylindrical inner ring; the inner circumferential walls of the two outer ring bodies (121) are provided with a plurality of the second card grooves (1211) corresponding to the plurality of the first card grooves (1112); and the plurality of the vibration absorbing bodies (131) are embedded in the plurality of the first card grooves (1112) and the plurality of the second card grooves (1211) corresponding to each other along the radial ends of the cylindrical inner ring.
3. A hybrid vibration suppression ring for wind vibration control according to claim 2, characterized in that: The fixing assembly (2) comprises an inner ring fixing assembly (21) and an outer ring fixing assembly (22); The outer wall of one end of the inner ring body (111) along the circumferential direction extends outwardly along the circumferential direction to form an arc-shaped snap-in edge 1 (1113), and the outer wall of the other end of the inner ring body (111) along the circumferential direction has an arc-shaped notch to form an arc-shaped snap-in edge 2 (1114); when the two inner ring bodies (111) are connected end to end, the snap-in edge 1 (1113) of one of the inner ring bodies (111) is adapted to snap-in with the snap-in edge 2 (1114) of the other inner ring body (111) to form a cylindrical inner ring; the inner ring fixing assembly (21) is fixedly connected to the snap-in edge 1 (1113) and the snap-in edge 2 (1114); The outer wall of one end of the outer ring body (121) in the circumferential direction extends outward in the circumferential direction to form an arc-shaped snap-in edge three (1213), and the outer wall of the other end of the outer ring body (121) in the circumferential direction has an arc-shaped notch to form an arc-shaped snap-in edge four (1214); when the two outer ring bodies (121) are connected end to end, the snap-in edge three (1213) of one of the outer ring bodies (121) is adapted to snap-in with the snap-in edge four (1214) of the other outer ring body (121) to form a cylindrical outer ring; the outer ring fixing assembly (22) is fixedly connected to the snap-in edge three (1213) and the snap-in edge four (1214).
4. A hybrid vibration suppression ring for wind vibration control according to claim 3, characterized in that: The outer wall of the vibration absorbing body (131) is coated with an adhesive layer (132) for bonding and fixing with the first clamping slot (1112) and the second clamping slot (1211).
5. A hybrid vibration suppression ring for wind vibration control according to claim 4, characterized in that: The distance between the first clamping edge (1113) and the second clamping edge (1114) is greater than the inner diameter of the inner ring body (111); the distance between the third clamping edge (1213) and the fourth clamping edge (1214) is greater than the inner diameter of the inner ring body (111).
6. A hybrid vibration suppression ring for wind vibration control according to claim 2, characterized in that: The vibration absorbing body (131) comprises an elastic outer cylinder (1311) and an elastic inner cylinder (1312); the elastic outer cylinder (1311) is coaxially sleeved on the outer peripheral wall of the elastic inner cylinder (1312); the elastic outer cylinder (1311) is arranged axially parallel to the cylindrical inner ring and is clamped in the corresponding clamping groove 1 (1112) and the clamping groove 2 (1211); The plurality of elastic outer cylinders (1311) are arranged at intervals along the circumference of the cylindrical inner ring.
7. A hybrid vibration suppression ring for wind vibration control according to claim 6, characterized in that: The first card groove (1112) is a prismatic groove body and is arranged along the length direction of the elastic outer cylinder (1311); the bottom wall of the first card groove (1112) and the side wall along the circumference of the cylindrical inner ring can be in linear contact with the corresponding outer peripheral wall of the elastic outer cylinder (1311) to form a linear vibration pressing portion.
8. A hybrid vibration suppression ring for wind vibration control according to claim 1, characterized in that: An elastic cushion layer (1115) is bonded to the tightening surface (1111) of the inner ring assembly (11).
9. A hybrid vibration suppression ring for wind vibration control according to claim 1, characterized in that: The flow-perturbing holes (1212) are multiple and are arranged at intervals along the circumference of the outer ring component (12); the flow-perturbing holes (1212) are any one of rectangular, circular, elliptical and prismatic.
10. A method for installing a hybrid vibration suppression collar for wind vibration control, characterized in that: Using the hybrid vibration suppression ring for wind vibration control as described in claim 5; comprising the following steps: Step 1: pre-assemble the turbulent vibration absorbing assembly (1); arrange the outer ring body (121) corresponding to the outer side of the inner ring body (111) coaxially, and bond the two together through the vibration absorbing body (131), and bond an elastic cushion layer to the inner wall surface of the inner ring body (111) to form a semicircular mixed vibration suppression ring; Step 2: Press two semicircular mixed vibration suppression rings radially against the vibration suppression body and coaxially sleeve them on the outer peripheral wall of the same vibration suppression body; slide and adjust the semicircular mixed vibration suppression rings along the length direction of the vibration suppression body, so that the two semicircular mixed vibration suppression rings are adapted and snap-fitted end to end to enclose a circular mixed vibration suppression ring, and at this time, the tightening surface (1111) of the combined circular mixed vibration suppression ring is pressed and fixed on the outer peripheral wall of the vibration suppression body; Step three: fix the two corresponding inner ring bodies (111) together through the inner ring fixing component (21); and fix the two corresponding outer ring bodies (121) together through the outer ring fixing component (22).
Citation Information
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