WO2015003634A1 - 一种轨道吸振器 - Google Patents
一种轨道吸振器 Download PDFInfo
- Publication number
- WO2015003634A1 WO2015003634A1 PCT/CN2014/081929 CN2014081929W WO2015003634A1 WO 2015003634 A1 WO2015003634 A1 WO 2015003634A1 CN 2014081929 W CN2014081929 W CN 2014081929W WO 2015003634 A1 WO2015003634 A1 WO 2015003634A1
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- WO
- WIPO (PCT)
- Prior art keywords
- mass
- rail
- vibration
- elastic
- elastic member
- Prior art date
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- 238000013016 damping Methods 0.000 claims description 112
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B5/00—Rails; Guard rails; Distance-keeping means for them
- E01B5/02—Rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/108—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on plastics springs
Definitions
- the invention belongs to the field of vibration and noise control of rail transit, and particularly relates to a vibration damping device which is arranged on a non-working surface of a rail and is used for reducing the vibration and noise generated by the rail during the operation of the rail vehicle.
- the research shows that among the railway noise generated during train operation, the wheel-rail noise accounts for a high proportion, and the medium- and high-frequency noise of the rail vibration radiation contributes especially to the total noise. Therefore, the vibration and noise treatment of the rail is carried out. It is of great significance for the vibration and noise reduction of urban rail transit.
- engineers have developed various types of vibration and noise reduction products.
- the tuned damper is more common.
- the tuning device composed of the quality one spring generates the reaction force when the rail vibrates.
- the vibration of the rail is reduced, for example, the rail tuning damper disclosed in the patent application No. 200480019707.1, which can achieve a certain vibration and noise reduction effect.
- the tuned damper for such tracks has a small frequency range.
- the elastomer is required to have high elasticity, the material is soft and easy to be torn; Control, the elastomer needs to have a large hardness, the elasticity is poor, and the vibration damping effect is not good.
- such rail-tuned dampers also generally have the following disadvantages: (1) The mass is embedded in the elastic material, and it is difficult to achieve accurate mass tuning and damping in both directions; (2) Tuning damper It is still semi-finished at the factory, it is not assembled with the rail, and it is impossible to directly measure or debug the working frequency; (3)- Once the material is cracked, cracks will form inside, and the stiffness of the elastic component and the operating frequency of the tuned damper will change. (4) The elastic component, the damping material and the bonding material are integrated, and all parameters cannot be optimized; Once the elastic material is cracked, the TMD mass will fall off, posing a safety hazard to the train operation.
- the existing tuned damper has limited effects of vibration and noise reduction, unstable performance, narrow frequency domain and short service life.
- the technical problem to be solved by the present invention is to overcome the above drawbacks and provide a track vibration absorber with good vibration and noise reduction effect, strong weather resistance, stable performance, wide frequency domain, safe use and long service life.
- the track vibration absorber comprises an elastic member, a mass and at least one coupling frame, and a surface shape of the coupling portion of the coupling frame and the rail non-working surface is the same as a shape of a corresponding surface of the rail, and the coupling frame includes at least An absorbing chamber, the mass is at least partially disposed in the absorbing chamber of the coupling frame, and an elastic member is disposed between the mass and the chamber wall of the absorbing chamber.
- the elastic member is disposed between the mass and the chamber wall of the absorbing chamber in the vertical direction of the rail or/and the rail, or the elastic member is disposed between the mass and the chamber wall of the absorbing chamber around the mass.
- the elastic member may be composed of at least one of rubber, elastic polyurethane or metal spring.
- the metal spring includes a disc spring, a leaf spring, a coil spring, etc.; the rubber may specifically be a neoprene rubber, a nitrile rubber or the like.
- the elastic element disposed between the mass and the wall of the vibration absorbing chamber can be pre-compressed, and the pre-compression displacement of the elastic element is greater than that of the mass. Relative to the amplitude of the wall of the vibration absorbing chamber.
- pre-compression is often required when assembling the mass and the joining frame during the manufacturing process of the present invention.
- the elastic member can also be integrally fixed with the mass, the splicing or the vulcanization joint between the mass and the wall of the absorbing chamber.
- the track vibration absorber of the present invention may further comprise a damping element disposed between the mass and the wall of the vibration absorbing chamber.
- the damping element may be composed of an elastic solid damping material; the damping element may also be composed of a liquid damping material.
- the moving blade can also be arranged on the mass block, and the static vibration blade and the moving blade are arranged alternately on the wall of the vibration absorption cavity, and a liquid damping material is arranged in a part of the space between the adjacent static blade and the moving blade.
- a spoiler or a spoiler on the moving blade or/and the stationary blade it is also possible to provide a spoiler or a spoiler on the mass.
- the connecting frame may also be provided with a connecting plate, and the connecting plate is provided with a connecting hole, a bent connecting portion or a snap structure.
- connection reinforcing structure may be provided on the surface of the cavity wall to which the vibration absorbing cavity cooperates with the elastic member or/and the mating surface of the mass and the elastic member.
- the connection reinforcing structure comprises a surface convex-concave structure, a surface knurling structure or a surface pulping structure.
- the absorbing chambers in the coupling frame When the number of the absorbing chambers in the coupling frame exceeds one, the absorbing chambers are juxtaposed in the vertical direction of the rails in the coupling frame, or/and juxtaposed along the lateral direction of the rails, or/and juxtaposed along the longitudinal direction of the rails.
- the coupling frame of the track vibration absorber of the present invention is disposed on the non-working surface of the rail along the longitudinal direction of the rail, and the non-working surface of the rail includes the lower part of the rail head, the rail waist and the wing plate which are located outside the limit during use of the rail. And the bottom surface of the rail.
- the beneficial effects of the present invention are: since the mass-spring system composed of the mass and the elastic member is disposed in the coupling frame,
- the coupling frame forms an effective protection for the mass-spring system composed of the mass and the elastic member, especially when the polymer elastic material is used, the elastic material is not easily deteriorated, and the service life of the product can be greatly prolonged;
- the track vibration absorber of the present invention achieves a breakthrough in structure, has fewer restrictions on elastic components, and has a wide selection range of elastic components.
- an elastic component such as a metal spring can be selected instead of rubber, and the existing rubber can be circumvented. Defects in the elastic component, such as temperature sensitivity, etc., so the applicable parameter range is wider, the performance is more stable, and the weather resistance is better;
- the mass is not disposed inside the elastic member, and the elastic member occupies less space, so that a larger and heavier mass can be set under the same space condition, thereby effectively improving Quality tuning and damping effect;
- the elastic element, damping material and bonding material can be independent, and the respective characteristics can be optimized. Both can be mass-produced in the factory, the parameters are even and stable, the bonding material is responsible for the bonding strength, the elastic material is responsible for frequency modulation, and the damping is responsible for energy dissipation;
- the elastic elements are independently arranged above and below the mass, and the frequency of the same mass in the vertical direction of the rail and the transverse direction of the rail can be independently adjusted to achieve tuning quality damping in both directions;
- the track vibration absorber is already finished at the factory. It can accurately measure and debug the working frequency of the product before leaving the factory. It does not need on-site debugging. It only needs to be pasted, installed or fastener connected.
- the track vibration absorber of the invention has the advantages of simple structure, good vibration and noise reduction effect, stable performance, good weather resistance, wide frequency domain range, long service life and excellent cost performance, which is beneficial to delaying the wear of the rail and extending the rail.
- the service life of the market is very broad.
- FIG. 1 is a schematic structural view and an application schematic diagram of a track vibration absorber of the present invention
- FIG. 2 is a schematic structural view and a second application schematic diagram of the track vibration absorber of the present invention
- FIG. 3 is a schematic structural view of the track vibration absorber of the present invention and a third application diagram thereof;
- FIG. 4 is a schematic structural view of the track vibration absorber of the present invention and a fourth application diagram thereof;
- Figure 5 is a schematic structural view of the track vibration absorber of the present invention and a fifth application diagram thereof;
- FIG. 6 is a schematic structural view of the track vibration absorber of the present invention and a sixth application diagram thereof;
- Figure 7 is a schematic structural view of the track vibration absorber of the present invention and a seventh application diagram thereof;
- FIG. 8 is a schematic structural view of the track vibration absorber of the present invention and an application diagram thereof;
- FIG. 9 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 10 is an enlarged view of a portion A in Figure 9;
- Figure 11 is a second enlarged view of the portion A in Figure 9;
- FIG. 12 is a schematic structural view of a track vibration absorber of the present invention and a schematic diagram of an application thereof;
- Figure 13 is a schematic structural view of the track vibration absorber of the present invention and an application schematic diagram 11;
- Figure 14 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application 12;
- Figure 15 is a cross-sectional view taken along line BB of Figure 14;
- Figure 16 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 17 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 19 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 20 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 21 is a cross-sectional view taken along line C-C of Figure 20;
- Figure 22 is a schematic structural view of the track vibration absorber of the present invention and an application diagram 18;
- Figure 23 is an enlarged view of a portion D in Figure 22;
- Figure 24 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 25 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 26 is a schematic structural view and a schematic diagram of the application of the track vibration absorber of the present invention.
- Figure 27 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application 22;
- Figure 29 is an enlarged view of a portion E in Figure 28;
- Figure 30 is a schematic structural view of the track vibration absorber of the present invention and a schematic diagram of the application thereof;
- Figure 31 is a schematic view showing the structure of the track vibration absorber of the present invention and a twenty-fifth application diagram thereof.
- the track vibration absorber of the present invention comprises an elastic member 4 and a mass 3, and further comprises a coupling frame 2, the surface shape of the coupling frame 2 and the rail 1 wing and the rail waist coupling portion being the same as the shape of the corresponding surface of the rail
- the coupling frame 2 comprises an absorbing chamber 100.
- the mass 3 is disposed in the absorbing chamber 100 of the coupling frame 2
- the elastic member 4 is disposed between the mass 3 and the chamber wall of the absorbing chamber 100.
- the elastic member 4 is vertically disposed between the mass 3 and the cavity wall of the vibration absorbing cavity 100 along the rail.
- the coupling frame 2 is made of an aluminum alloy material
- the elastic member 4 is made of a rubber material, because the rubber material has good damping.
- the characteristic is a commonly used elastic solid damping material, so that the elastic member 4 is also a damping member, and the mass 3 is an iron block, wherein the elastic member 4 is fixedly coupled to the mass 3 and the coupling frame 2 by a vulcanization process, respectively.
- the coupling frame and the elastic element A part of the mating surface of the piece and a part of the mating surface of the mass and the elastic element are respectively provided with a connection reinforcing structure, and the connecting reinforcing structure is specifically provided on the corresponding surface of the convex and concave structure 30 and the mass 3 provided on the corresponding surface of the coupling frame 2 The convex and concave structure 31.
- the joint frame 2 When applied, as shown in FIG. 1 , the joint frame 2 is firmly bonded to the corresponding surface of the rail by the bonding material along the longitudinal direction of the rail, and the assembly of the rail vibration absorber and the rail of the present invention can be completed.
- the rail vibration absorption of the present invention is required.
- the device does not need to be arranged continuously on the rail.
- attention should be paid to avoid the rail auxiliary components such as fasteners and fishplates, and the rails should be disposed on the corresponding non-working surfaces of the rails between the sleepers. This is applicable to all technical solutions of the present invention. , explained here together.
- the spring clip or the like can be further enhanced to further enhance the fixing effect, which is a commonly used mounting means in the art, and is within the protection range required by the present invention.
- the quality of the mass and the elastic element is a spring-tuned system, which generates a reaction force for the power consumption, so that the vibration of the rail is quickly attenuated and tends to be stationary.
- the joint frame and the elastic body And the constrained damping energy dissipation structure is also formed between the mass blocks.
- the mass block and the coupling frame When the mass block and the coupling frame are larger than 1/2 wavelength of one modal frequency, the mass block compresses the elastic element to move to the coupling frame, and the mass block and the coupling frame will The rubber material has a restraining effect, and the relative deformation between the two will shear the rubber material between the two to realize additional shear deformation energy consumption, so the vibration damping energy consumption effect can be further improved.
- the vibration energy of the rail is attenuated rapidly, the corresponding vibration and noise radiation intensity is also rapidly reduced. Therefore, the track vibration absorber of the invention can achieve good vibration and noise reduction effects, and at the same time, can effectively reduce the wear of the rail and prolong the use of the rail. life.
- the elastic member 4 is disposed between the upper and lower surfaces of the mass 3 and the coupling frame 1 only in the vertical direction of the rail, since the elastic member 4 has a certain elasticity in the lateral direction of the rail,
- the track vibration absorber of the present invention described in this example can simultaneously control the vibration of the rail in the vertical and lateral directions.
- the vibration of different frequencies can be controlled by optimizing the elasticity of the elastic member 4 and the total weight of the mass 3.
- the track absorbers of the present invention that control different frequency vibrations are alternately disposed on the non-working surface of the rail. can.
- the selection of the elastic member, the mass, and the coupling frame can be various.
- the elastic member can be made of at least one of rubber, elastic polyurethane or metal spring;
- the mass can be made of steel, iron, etc. Made of materials;
- the joint frame can be made of high-strength, corrosion-resistant materials such as stainless steel, aluminum alloy, and glass fiber reinforced plastic.
- the specific joining process of the elastic member and the mass block and the coupling frame may be different, for example, vulcanization, heat bonding, bonding or splicing may be used, as long as The ability to connect the three together can achieve the same effect, and is within the scope of protection required by the present invention.
- connection reinforcing structure is provided only on the mating surface of the coupling frame and the elastic member, or
- the connection reinforcement structure is provided only on the mating surface of the mass and the elastic member, and the specific structure of the surface convex and concave structure may be various forms such as protrusions, pits, continuous ribs or continuous grooves, and the cross section of the surface convex and concave structure
- the shape may be various shapes such as a rectangle, a trapezoid, a circular arc, a triangle, a T-shape, etc.
- connection reinforcing structure may be a surface knurling structure or a surface pulping structure, etc., in addition to the surface convex-concave structure already mentioned, Good results can be achieved, and the description of the drawings, which is only described in words, is within the scope of protection claimed in the present invention.
- the track vibration absorber of the present invention has a quality one-spring system composed of a mass and an elastic member disposed in the coupling frame, which has the following advantages:
- the coupling frame forms an effective protection for the mass-spring system composed of the mass and the elastic member, especially when the polymer elastic material is used, the elastic material is not easily deteriorated, and the service life of the product can be greatly prolonged;
- the track vibration absorber of the present invention achieves a breakthrough in structure, has fewer restrictions on elastic components, and has a wide selection range of elastic components.
- an elastic component such as a metal spring can be selected instead of rubber, and the existing rubber can be circumvented. Defects in the elastic component, such as temperature sensitivity, etc., so the applicable parameter range is wider, the performance is more stable, and the weather resistance is better;
- the mass is not disposed inside the elastic member, and the elastic member occupies less space, so that a larger and heavier mass can be set under the same space condition, thereby effectively improving Quality tuning and damping effect;
- Elastic components, damping materials and bonding materials can be independently optimized for their respective characteristics. They can be mass-produced in the factory, the parameters are even and stable, the bonding materials are responsible for the bonding strength, the elastic materials are responsible for frequency modulation, and the damping is responsible for energy dissipation;
- the elastic elements are independently arranged above and below the mass, and the frequency of the same mass in the vertical direction of the rail and the transverse direction of the rail can be independently adjusted to achieve tuning quality damping in both directions;
- the track vibration absorber is already finished at the factory. It can accurately measure and debug the working frequency of the product before leaving the factory. It does not need on-site debugging. It only needs to be pasted, installed or fastener connected.
- the elastic member may be pre-tensioned or not pre-tensioned, and the limitation or fixation of the elastic member may be considered when not pre-tightening.
- the track vibration absorber of the invention has the advantages of simple structure, good vibration and noise reduction performance, low cost, long service life and excellent cost performance, which is beneficial to delaying the wear of the rail and prolonging the service life of the rail, and the market application prospect is very good. broad.
- the track vibration absorber of the present invention is different from the first embodiment in that the elastic member 4 is disposed between the mass 3 and the surface of the cavity wall corresponding to the vertical direction of the rail 1 and the coupling frame 2 is made of FRP material.
- the elastic member 4 is made of a highly damped elastic polyurethane material, and the mass 3 is made of a steel material, wherein the elastic member 4 is fixedly bonded to the mass 3 and the cavity wall of the vibration absorbing chamber 100 by a chemical bonding process.
- a joint reinforcing surface is respectively arranged on the mating surface of the joint frame and the elastic member and the mating surface of the mass and the elastic member, and the joint reinforcing structure is specifically
- the surface embossing structure 32 provided on the corresponding surface of the coupling frame 2 and the surface knurling structure 33 provided on the corresponding surface of the mass 3 are provided. Since the highly damped elastic polyurethane material used for the elastic member 4 also has good damping characteristics and is one of the commonly used elastic solid damping materials, the elastic member 4 is also a damping member.
- the elastic member 4 is pre-compressed when assembled with the mass 3 and the coupling frame 2, in a pre-compressed state, and the pre-compression displacement of the elastic member 4 is larger than the amplitude of the wall of the vibration-absorbing chamber 100 when the mass 3 is operated.
- the track vibration absorber of the present invention described in this example is only in the mass 3
- the elastic member 4 is disposed between the side surface and the coupling frame 1. Therefore, the track vibration absorber of the present invention is mainly used for controlling the vibration of the rail in the lateral direction, and of course, it also has a certain control effect on the vertical vibration.
- the elastic member is pre-compressed, even if the high-damping elastic polyurethane material in the elastic member is cracked, there is internal crack, the rigidity of the elastic member, and the track vibration absorber of the present invention.
- the operating frequency does not change, and its damping performance is more stable and reliable.
- the control of vibration at different frequencies can be achieved by optimizing the elasticity of the elastic member 4 and the total weight of the mass 3.
- the track vibration absorber of the present invention for controlling the corresponding vibration frequency may be alternately disposed on the non-working surface of the rail for a plurality of main vibration frequencies of the rail.
- the elastic component disposed between the mass block and the coupling frame may not be pre-compressed.
- Whether or not to pre-compress the elastic member can be selected according to the characteristics of the vibration frequency required to control the track structure.
- the track vibration absorber of the present invention is different from the first embodiment in that the coupling frame 2 is made of steel, and the elastic member 4 is disposed between the mass 3 and the surface of the cavity wall corresponding to the transverse direction of the rail 1 of the vibration absorbing chamber 100.
- the elastic member 4 is made of a metal spring. In this example, it is specifically a spiral steel spring. Both ends of the spiral steel spring are respectively welded and fixed to the coupling frame 2 and the mass 3.
- the elastic element 4 is pre-compressed when assembled with the mass 3 and the coupling frame 2, in a pre-compressed state, and the elastic element 4
- the pre-compression displacement is greater than the amplitude of the cavity 3 relative to the chamber wall of the vibration-absorbing chamber 100 when it is in operation.
- the track vibration absorber of the present invention described in the present example has the following advantages: Since the spiral steel spring is used as the elastic member, the spiral steel spring has a good elasticity in the vertical direction, and is in the lateral direction. It also has good elasticity. Therefore, by controlling the relationship between the vertical stiffness and the lateral stiffness of the spiral steel spring, the track vibration absorber of the present invention can simultaneously control the lateral and vertical vibration of the rail, and its physical properties are affected by the temperature and humidity. When the influence of environmental factors is small, the vibration damping performance is more efficient and stable, and the service life is longer.
- the metal spring which can be used as the elastic member can be a disc spring or a leaf spring in addition to the coil spring already mentioned, and can achieve a good effect, all of which are within the scope of protection required by the present invention.
- the elastic element composed of a metal spring alone
- the elastic element and the mass and the joint The pre-compression is carried out when the frame is assembled, and this also applies to the technique of the other separately applied metal spring of the present invention to constitute the elastic element. The program is explained here.
- the present invention does not exclude the technical solution that the elastic element is not pre-compressed.
- the elastic element may not be pre-compressed.
- the two ends of the metal coil spring may be respectively fixed to the mass block and the coupling frame or The bonds are fixed together and the elastic elements are not pre-compressed.
- the two ends of the metal coil spring are respectively bonded to the mass block and the coupling frame, and in addition to the positioning of the elastic element, some special functions can be realized, for example, the metal spiral is made by using a bonding material.
- the spring coils at both ends of the spring are locked, which can eliminate the initial nonlinear problem of the spring stiffness of the metal coil spring due to machining errors or/and assembly errors, and are all within the protection scope of the present invention.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element when controlling low-frequency vibration, the elastic element can be not pre-tensioned. In practical applications, whether the elastic element can be selected according to the characteristics of the required control vibration frequency Implement pre-compression.
- the track vibration absorber of the present invention is different from the third embodiment in that the elastic member 4 composed of the spiral steel spring is simultaneously disposed on the surface of the cavity wall corresponding to the lateral and vertical direction of the rail 1 corresponding to the mass 3 and the vibration absorbing chamber 100. between.
- the elastic elements are independently arranged on the upper and lower sides of the mass, and the frequency of the same mass in the vertical direction of the rail and the transverse direction of the rail can be independently adjusted to realize tuning in two directions.
- the mass is damped, the mutual interference is small, and the control precision is higher.
- the elastic member supports the entire mass, the movement of the mass is more stable during use, and the swinging and overturning moments are less likely to occur.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention as shown in Fig. 5 differs from the technical solution shown in Fig. 4 in that the elastic member 4 provided around the mass 3 is made of an elastic polyurethane material. Further, the coupling frame 2 is further provided with a connecting plate 5, and the connecting plate 5 is provided with a connecting hole 6.
- the connecting plate 5 is used to fasten the bottom of the rail rail, and the fastener 7 is utilized.
- Pass The connecting holes 6 securely connect the connecting plates 5 of the track vibration absorber of the present invention disposed on the left and right sides of the rail 1, so that the stability of the rail vibration absorber and the rail assembly of the present invention can be further improved. Even if the bonding fails, the track vibration absorber of the present invention can be fixed to the surface of the rail without falling off.
- the elastic member 4 is in a pre-tightened state, and even if the mass 3 is separated from the elastic member 4, the mass 3 is not easily detached from the vibration absorbing chamber 100, and the vehicle is not driven. Causes a safety hazard.
- the elastic component disposed between the mass block and the coupling frame may not be pre-compressed.
- Whether or not to pre-compress the elastic member can be selected according to the characteristics of the vibration frequency required to control the track structure.
- the track vibration absorber of the present invention is different from the fifth embodiment in that the elastic member 4 is a composite spring composed of a rubber and a metal spring. Further, the connecting plate 5 is provided with a snap structure, and the buckle structure includes each other. The mating connecting plate 5 is provided with a card slot 8 and a claw 9 respectively. In addition to bonding, the buckle structure is used to fasten and tie the rail vibration absorbers of the present invention on both sides of the rail, and is firmly assembled with the rail.
- the rubber material in this elastic element 4 also constitutes a damping element.
- the elastic member 4 is composed of a composite spring of a rubber and a metal spring, and the rubber-metal composite spring is used to fully utilize the high elasticity and long life of the metal spring, and the metal material can be effectively suppressed by the rubber material.
- the resonance of the spring during use helps to further improve the vibration damping performance and service life of the product.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention shown in Fig. 7 differs from the sixth embodiment in that the connecting plate 5 is provided with a bent connecting portion 10.
- the coupling frame 2 is attached to the rail waist and the wing on one side of the rail 1, the connecting plate 5 covers the entire rail bottom, and the bending joint 10 is bent and fastened to the wing on the other side of the rail 1.
- the assembly between the track vibration absorber of the present invention and the rail is achieved.
- the track vibration absorber of the invention directly buckles on the non-working surface of the rail by using the connecting plate and the bending connecting portion, and the assembly and disassembly is convenient and quick, convenient for maintenance, safe and reliable, and should be When used, it can be alternately arranged on the left and right sides of the rail.
- the track absorber of the present invention it is also possible to simultaneously bond to the rail by means of a bonding material.
- the coupling frame 2 and the connecting plate 5 can also be used.
- a layer of solid damping material is added to the contact surface of the rail.
- the coupling frame 2, the connecting plate 5, the rail 1 and the solid damping material layer can also constitute a constrained damping structure, which can enhance the energy consumption and improve the vibration damping effect.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the seventh embodiment in that the coupling frame 2 is fastened under the rail bottom of the rail 1 through the connecting plate 5 and the bent connecting portion 10 provided on the connecting plate 5, thereby realizing the present invention. Assembly between the track absorber and the rail.
- the elastic member 4 is composed of a composite spring made of a metal disc spring and an elastic polyurethane material, wherein the end of the metal disc spring is adjacent to the adjacent coupling frame 2 and the mass 3; One.
- the track vibration absorber of the present invention uses the composite spring made of the metal disc spring and the elastic polyurethane material as the elastic element 4, which can fully utilize the strong bearing capacity of the disc spring, has a long service life and a small occupied space. Etc.
- the space at the bottom of the rail can be fully utilized, which helps to set a larger mass for the space and further improve the vibration damping performance.
- a damping material may be provided on the contact surface of the connecting plate 5 and the rail.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the seventh embodiment in that the elastic member 4 is composed of a leaf spring, the leaf spring is made of spring steel and the surface is covered with rubber. Layer 12 With the same composition, the corresponding limiting groove of the leaf spring is respectively accommodated on the mass 3. It should be noted that in the elastic member 4, the metal dome 11 mainly provides elasticity, and the rubber layer 12 mainly provides damping, and thus the rubber layer 12 is used here as a damping member.
- the track vibration absorber described in this example is identical to the application method of the seventh embodiment and will not be repeated here.
- the metal dome 11 in the elastic member is still connected during the working process, except that the tuning system composed of the mass and the elastic member can realize energy dissipation.
- the rubber layer 12 between the two is continuously cut to realize the shear energy consumption, so that the energy consumption is faster and the vibration damping effect is better.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the difference between the track damper of the present invention and the ninth embodiment is that the elastic member 4 is composed of a leaf spring, and the leaf spring is made of two metal spring pieces 14 made of spring steel and interposed therebetween.
- the rubber layers 13 are composed in common. Similar to the embodiment 9, the rubber layer 13 is also used here as a damping element.
- the application method and advantages of the technical solution in this example are basically the same as those in the ninth embodiment.
- the metal elastic piece 14 and the rubber layer 13 directly constitute a constrained damping structure, and the continuation is also realized during the working process.
- the energy consumption because the effective area of the shear damping material between the metal shrapnel 14 is larger, the shear damping energy consumption is more, the vibration energy of the attenuating rail is faster, and the vibration damping effect is better.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention as shown in FIG. 12 includes a coupling frame 18 disposed on the right side of the rail 1 rail and a coupling frame 15 disposed at the bottom of the rail, and a left side of the rail.
- An elastic member 20 is disposed between the surfaces of the cavity walls, and the elastic member 20 is composed of a spiral steel spring and The rubber frame is composited; the coupling frame 15 includes a vibration absorbing chamber 102, and the mass chamber 16 is disposed in the vibration absorbing chamber 102.
- the mass member 16 and the vibration absorbing chamber 102 are respectively provided with elastic members 17 along the vertical and lateral wall surfaces of the rail.
- the elastic member 17 is made of a rubber material;
- the coupling frame 22 includes a vibration absorbing chamber 103, and the mass chamber 23 is disposed in the vibration absorbing chamber 103.
- the mass 23 and the vibration absorbing chamber 103 are respectively disposed between the vertical and lateral wall surfaces of the rail.
- the elastic member 21 is composed of a spiral steel spring and a rubber material.
- the connecting frame 15 is provided with a connecting plate 25 with a connecting hole
- the connecting frame 22 is provided with a connecting plate 24 with a connecting hole
- the connecting plate 25 and the connecting plate 24 are integrally connected by the connecting hole through the fastening hole 26
- the rail vibration absorber of the present invention is firmly assembled with the rail.
- a damping material may be provided on the contact surface of the present invention with the rail.
- the track vibration absorber of the present invention covers the non-working surface of most rails, including the rail bottom, the wing plate and the partial rail waist, fully utilizes the space, and is provided with more mass blocks and elastic components.
- the quality-one spring tuning system helps to attenuate the vibration energy of the rails more quickly, further improving the vibration and noise reduction performance of the product.
- a tuning system composed of a plurality of mass blocks and elastic elements can be included, and different tuning systems can be used to control vibrations of different frequencies, and the vibration frequency of the control is more. The vibration damping effect is better.
- the track vibration absorber of the present invention can also be provided with only the integrated coupling frame 18 and the coupling frame 15, and the connecting frame 15 is provided with the connecting plate 5, and the connecting plate 5 is provided with a folding end.
- the bent connecting portion 10 is used for fastening to the rail 1 and also achieves a good effect, and is also within the scope of protection claimed in the present invention.
- the elastic element can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned to control the low-frequency vibration.
- the component can be pre-compacted. In practical applications, whether or not to pre-compress the elastic component can be selected according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the seventh embodiment in that the coupling frame 2 is divided into four vibration absorbing chambers by the partition 48 along the longitudinal direction of the rail, and each of the vibration absorbing chambers is provided with a mass block and An elastic member, wherein the vibration absorbing chamber 104 is provided with a mass 40 and an elastic member 41.
- the elastic member 41 is disposed around the mass 40 between the mass and the wall of the absorbing cavity; the absorbing chamber 105 is provided with a mass 42 and an elastic member.
- the elastic member 43 is disposed around the mass 42 between the mass and the wall of the vibration absorption chamber; the vibration chamber 106 is provided with a mass 44 and an elastic member 45, and the elastic member 45 is disposed around the mass 44 at the mass and the wall of the vibration absorption chamber.
- the mass absorbing chamber 107 is provided with a mass 46 and an elastic member 47.
- the elastic member 47 is disposed around the mass 46 between the mass and the wall of the absorbing chamber.
- the masses 40, 42, 44 and 46 are each made of a cast iron material, and the elastic members 41, 43, 45 and 47 are each made of a highly damped elastic rubber material and also used as a damping member.
- the track vibration absorber of the present invention is the same as that of the seventh embodiment, and will not be repeated.
- the biggest advantage of the technical solution in this example is that, due to the arrangement of four shock absorbing cavities of different sizes along the longitudinal direction of the rail in the joint frame, the size of the mass in each absorbing chamber is different, The thickness of the elastic element in a vibration absorbing chamber is also different. Therefore, by optimizing the parameters of the mass and the elastic element in each of the absorbing chambers, the quality of the mass and the elastic element in each absorbing chamber can be made one by one. Controlling vibration at a specific frequency, it can control the vibration of four frequencies at the same time, and the vibration reduction and noise reduction effect after use is better.
- the materials of the masses used in different vibration absorption chambers may be different, and the materials of the elastic elements used in different vibration absorption chambers may also be different. As long as the quality and the rigidity of the elastic elements are adjusted, a specific vibration frequency can be effectively controlled. , are all within the scope of protection required by the present invention.
- the elastic elements located above and below the mass can also be made of different materials, so that the mass of the mass can be independently adjusted in the vertical direction of the rail and the transverse direction of the rail, and realized in two directions. The tuning quality is damped, the mutual interference is small, and the control precision is higher. This feature is also suitable for the technical solution that other elastic components are disposed between the mass block and the wall of the absorbing cavity around the mass, and the text is also used to explain the description. Within the scope of protection required by the present invention.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the embodiment 12 in that the coupling frame 2 includes a vibration absorbing chamber, and the mass chamber 40 and the elastic member 41 are disposed in the vibration absorbing chamber, and the mass 40 is made of cast steel.
- the elastic member 41 is made of a highly damped elastic rubber, and the elastic member 41 is disposed around the mass 40 between the mass and the chamber wall of the absorbing chamber, and the elastic member 41 is also a damper member. Further, only the middle portion of the mass 40 is disposed in the absorbing chamber of the coupling frame 2, and both ends extend outside the coupling frame 2, respectively.
- the technical solution of the present embodiment has the advantages of the track vibration absorber of the present invention shown in FIG.
- the parameters such as the adjustment quality and the rigidity of the elastic member are more convenient, and can be used for In addition to controlling the high-frequency vibration, it is also suitable for controlling low-frequency vibrations because it can be set with a large mass, and has a wider application range.
- the track vibration absorber of the present example also fixes the non-working surface of the rail disposed between the adjacent sleepers in the longitudinal direction of the rail, and avoids the rail components such as the fasteners during assembly, since the length of the joint frame 2 along the longitudinal direction of the rail is shorter than that of the mass 40, It also helps to save material.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention as shown in Figs. 14 and 17 is different from the thirteenth embodiment in that it comprises two coupling frames 2, and two coupling frames are respectively disposed at the ends of the mass 40, each of the coupling frames 2.
- the absorbing chamber is provided with a mass 40 and an elastic member 41. The partial portion of the mass 40 is disposed in the absorbing chamber, and the intermediate portion is exposed between the two coupling frames.
- the technical solution in the present example is more convenient for production and assembly, and the cross-sectional dimension of the dew section in the middle of the mass block can even be larger than the cross-sectional dimension of the coupling frame, which is advantageous for setting a larger mass and controlling a lower frequency. Vibration.
- the two ends of the mass are matched with the elastic element and the coupling frame, and the stability is better when working.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- a plurality of vibration absorbing chambers in the coupling frame are disposed along the longitudinal direction of the rail, and the rail vibration absorber of the present invention as shown in Fig. 18 is different from the twelve embodiment in that the coupling frame 2 includes three vibration absorbing members. a cavity, three absorbing chambers are arranged along the vertical direction of the rail, wherein the uppermost absorbing chamber is provided with a mass 58 and an elastic member 59, and the middle absorbing chamber is provided with a mass 60 and an elastic member 61, and the lowermost vibration absorbing member A mass 62 and an elastic member 63 are provided in the cavity.
- Masses 58, 60 and 62 are made of heavy concrete material, elastic Elements 59, 61 and 63 are each made of an elastic polyurethane material.
- the track vibration absorber of the present invention described in this example is directly bonded and fixed to the bottom of the rail head of the rail 1 and the rail waist by using an adhesive material, and the spring is used to increase the reliability of the connection fixing.
- the clip 64 cooperates to clamp the track vibration absorber of the present invention to the surface of the rail to complete the assembly between the track absorber of the present invention and the rail.
- the track vibration absorber of the present invention can simultaneously control vibrations of a plurality of frequencies, which is convenient to use, for example, can be controlled by a tuning device composed of the mass 58 and the elastic member 59.
- the vibration targeted to the vibration characteristics of different areas, targeted control, better damping effect. ⁇ Made of heavy concrete, it will not rust, has a long service life and can greatly reduce the cost.
- the mass and the elastic element in different vibration absorption chambers can also be made of different materials, for example, metal springs, rubber springs and elastic polyurethane springs can be used separately, and in addition, ordinary The quality of concrete or reinforced concrete can also achieve good results, all within the scope of protection required by the present invention.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention shown in Fig. 19 differs from the fifteenth embodiment in that the coupling frame 2 includes four vibration absorbing chambers, and the four vibration absorbing chambers are arranged in a "field" shape.
- a mass block 49 and an elastic member 50 are disposed in the upper left absorbing chamber, and a mass 51 and an elastic member 52 are disposed in the upper right absorbing chamber, and the mass 53 and the elastic member 54 are disposed in the lower left absorbing chamber, and the right lower portion absorbs vibration.
- Masses 55 and 56 and elastic members 57 are disposed in the cavity. All masses are made of cast iron and the elastic elements 50, 52, 54 and 57 are made of different types of rubber with different stiffnesses.
- the track vibration absorber of the present invention can also control the vibration of a plurality of frequencies at the same time.
- two masses are arranged in the right lower suction chamber, and after optimizing the parameters, vibrations at different frequencies can be realized. Control, its damping efficiency is higher.
- the joint frame The absorbing chamber can be vertically along the rail, or/and along the rail, or/and along the longitudinal direction of the rail, which can achieve vibration control at multiple frequencies, which is very convenient to use.
- the elastic element in this example may or may not be pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the track vibration absorber shown in FIG. 4 in that the coupling frame 2 is made of a steel plate, and the damping chamber 100 of the coupling frame is further provided with a damping member 65.
- the damper member 65 is composed of a liquid damper material.
- the two sides of the absorbing chamber 100 are provided with a sealing member 66.
- the sealing member 66 is made of a steel plate. The sealing member 66 is welded and fixed to the coupling frame to completely close the absorbing chamber 100.
- the liquid damping material is filled in a portion of the gap between the mass 3 and the wall of the absorbing chamber 100.
- the application method of the track vibration absorber of the present invention is exactly the same as that of the first embodiment, and will not be repeated here.
- the damping element 65 composed of the liquid damping material is added to the vibration absorption chamber 100, when the mass 3 absorbs the vibration energy of the rail, the liquid damping material generates a reaction that hinders the movement of the mass. Force, thus quickly consuming the energy of the mass. Therefore, not only can the vibration energy of the steel rail be rapidly attenuated, but also the resonance of the elastic member 4 can be suppressed, and the elastic member 4 can be quickly restored to a standstill, thereby improving the fatigue life of the elastic member and further prolonging the service life of the product of the present invention.
- the elastic element in this example can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element can be pre-tightened. In the above, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the seventeenth embodiment in that the mass block 3 is provided with a spoiler convex and concave structure, and the spoiler convex and concave structure is specifically a plurality of sectional shapes provided on the surface of the mass block 3. It is a triangular rib 67.
- the surface of the mass 3 is provided with a plurality of ribs 67, the effective contact area of the mass 3 and the damping element 65 composed of the liquid damping material is larger, and the resistance of the liquid damping material to the mass is also It is even bigger, so it consumes more energy and the vibration damping effect is better.
- the cross-sectional shape of the rib 67 may be various shapes such as a circular arc shape, a rectangular shape, and a trapezoidal shape.
- the spoiler convex and concave structure can be various, for example, as shown in FIG.
- the spoiler convex and concave structure is composed of a plurality of grooves 68 provided on the surface of the mass 3; or as shown in FIG. 25, the spoiler convex and concave structure is composed of a plurality of partial protrusions 69 provided on the surface of the mass 3; or as shown in FIG. It is shown that the spoiler convex and concave structure is composed of a plurality of partial pits 70 provided on the surface of the mass 3.
- the cross-sectional shape of the groove 68, the partial protrusion 69, and the partial dimple 70 can be various, and a good effect can be achieved as long as the effective contact area of the mass block and the liquid damping material can be improved. All are within the scope of protection required by the present invention.
- the elastic element in this example can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element can be pre-tightened. In the above, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention as shown in Fig. 27 differs from that of the eighteenth embodiment in that the spoiler convex-concave structure is constituted by a plurality of spoiler holes 71 provided in the mass block 3 which are vertically penetrated along the rail.
- the spoiler hole 71 is immersed in a damping member 65 composed of a liquid damping material.
- the spoiler 71 provided on the mass 3 can effectively increase the effective contact area of the mass and the liquid damping material.
- the liquid damping material in the spoiler 71 and the mass 3 will move relative to each other, so that resistance is generated to consume energy, so that the spoiler 71 is provided on the mass 3 to effectively improve the product.
- Vibration damping performance Since the spoiler hole 71 is vertically disposed along the rail, the damping effect is most pronounced when the mass moves vertically along the rail, so the technical solution is more suitable for controlling the vertical vibration of the rail. Based on this principle, as shown in Fig. 27, it is also possible to provide a traverse hole 72 in the lateral direction of the rail on the mass to control the lateral vibration of the rail.
- the elastic element in this example can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element can be pre-tightened. In the above, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the sixteenth embodiment in that the mass block 3 is further provided with a rotor blade 73, and the cavity wall of the vibration absorbing cavity 100 is provided with a stator blade 74 interlaced with the rotor blade 73.
- a liquid damping material 65 is disposed in a portion of the gap between the adjacent stationary vanes 74 and the moving vanes 73.
- the effective contact area between the mass block and the liquid damping material can be significantly improved.
- the moving blade and the stationary blade cooperate with each other during the working process, and also produce an extrusion effect on the liquid damping material, so that the energy consumption is faster and the vibration damping effect is better.
- the elastic element in this example can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element can be pre-tightened. In the above, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention shown in Fig. 30 differs from the embodiment 20 in that the rotor blade 73 is provided with a spoiler hole 75, and the stator blade 74 is also provided with a spoiler hole 76.
- the turbulating holes are respectively arranged on the moving blades and the stationary blades, when the moving blades are close to the stationary blades, the liquid damping material is pressed and swayed in the turbulent holes, thereby further improving the energy consuming ability, thereby improving the vibration damping of the product. effect.
- a spoiler convex and concave structure on the stator blade or/and the moving blade, for example, a rib, a protrusion, and a partial protrusion are provided. Or partial pits, etc., can all have similar effects, all of which are within the scope of protection required by the present invention, and are only described in words herein, and no further drawings are provided.
- the elastic element in this example can be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element can be pre-tightened. In the above, it is possible to select whether to pre-compress the elastic element according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention is different from the fifth embodiment in that the coupling frame 2 is provided with a part of the wing plate of the rail 1 and a part of the rail bottom.
- the coupling frame 2 includes a vibration absorbing cavity 100, and the corresponding mass 3
- the shape is in the shape of a "C”.
- the elastic member 4 is made of a rubber material between the mass 3 and the vibration absorbing cavity 100 along the lateral direction of the rail and the rail.
- the elastic member 4 passes through the vulcanization process and the mass 3 and the coupling frame 2 Tightly connected, the elastic member 4 is pre-compressed when assembled with the mass 3 and the coupling frame 2, in a pre-compressed state, and the pre-compression displacement of the elastic member 4 is greater than when the mass 3 is operated.
- the assembly method between the track vibration absorber and the rail in this example is basically the same as that in the fifth embodiment, and will not be repeated here.
- the technical solution of the present embodiment has a lower assembly position on the rail, and can make a position for the rail accessories such as the fishplate, thereby improving the adaptability to the rail boundary.
- the track vibration absorber of the present invention may also be used in combination with a labyrinth constrained damping plate, which includes a connecting plate 201 and a restraining plate 200, in the application process.
- the plate 201 and the restraining plate 200 are respectively provided with a convex and concave structure which cooperates with each other, and the damping material layer 202 is disposed in the matching gap between the connecting plate 201 and the restraining plate 200. Since the labyrinth constrained damping plate has the effect of wide-band vibration damping and noise reduction, together with the track vibration absorber of the present invention, the track vibration absorber can be used to control the specific frequency vibration that the vibration noise contribution is prominent, and then the labyrinth constrained damping plate is used at a wide frequency. The vibration noise is effectively suppressed within the range, and the comprehensive treatment effect on the vibration and noise of the rail is more excellent.
- the track vibration absorber shown in FIG. 28 can also be used in the track vibration absorber at the same time.
- a labyrinth constrained damping plate is added to the upper rail waist, or the rail vibration absorber shown in Fig. 22 can also add a labyrinth constrained damping plate at the bottom of the rail at the same time, which can also achieve good vibration and noise reduction.
- the effect is only given in words here, no longer - the description of the drawings. It should be noted that, in this example, according to different needs, the elastic element in this example may be pre-compressed or not pre-compressed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned to control low-frequency vibration.
- the elastic element may not be pre-tensioned.
- whether or not to pre-compress the elastic element may be selected according to the characteristics of the required vibration frequency of the control structure.
- the track vibration absorber of the present invention has a mass-spring system composed of a mass and an elastic element disposed in the coupling frame, which has at least some of the following advantages: (1)
- the joint frame forms an effective protection for the quality of the mass and the elastic element, especially when the polymer elastic material is used, the elastic material is not easily deteriorated, and the service life of the product can be greatly prolonged; (2) due to the mass Wrapped in the elastic element as in the prior art, only in series with the elastic element, the selection of the elastic element is wider, the use of the metal spring is possible, the metal spring can be fully utilized, and the physical properties are less affected by the environment such as temperature and humidity.
- the vibration damping performance is more efficient and stable, and the service life is long; (3)
- the mass and the joint frame will be elastic.
- the component and the damping element exert a restraining effect, and the relative deformation between the two will shear the two
- the damping material realizes additional shear deformation energy consumption, so the vibration damping effect is more significant;
- the track vibration absorber of the present invention achieves a breakthrough in structure, less restrictions on elastic components, and a wide selection range of elastic components, Low-frequency and high-frequency can choose elastic elements such as metal springs instead of rubber.
- the present invention can avoid the defects of the existing rubber-like elastic components, such as temperature sensitivity, etc., so it has wider applicable parameters, more stable performance, and better weather resistance; (5) Since the available space of the rail surface is very limited, the present invention The middle mass is not disposed inside the elastic element, and the elastic element occupies less space, so larger and heavier masses can be set under the same space condition, thereby effectively improving the effect of mass tuning and damping; (6) elastic element, damping
- the materials and bonding materials can be independently optimized for their respective characteristics. They can be mass-produced in factories, the parameters are even and stable, the bonding materials are responsible for the bonding strength, the elastic materials are responsible for frequency modulation, and the damping is responsible for energy dissipation.
- the elastic member may be pre-tensioned or not, and the limit or fixation of the elastic member may be considered when the pre-tightening is not performed.
- the elastic element when controlling high-frequency vibration, the elastic element must be pre-tensioned.
- the elastic element When controlling low-frequency vibration, the elastic element may not be pre-tensioned. In practical applications, whether the elastic element can be selected according to the characteristics of the required control vibration frequency Implement pre-compression.
- the track vibration absorber of the invention has strong applicability, long service life, good weather resistance, good vibration and noise reduction effect, and has a broad application prospect in the market.
- the embodiments of the present invention are only intended to better illustrate the technical solutions of the present invention, and should not be construed as limiting the present invention, and the technical features in many embodiments may also be used interchangeably.
- the present invention is also incapable of exhausting the assembly method with the rails, and in addition to the methods of bonding, fastening, fasteners, and the like mentioned in the embodiments, it is also possible to assemble and fix by means of a spring clip or the like.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14822882.8A EP3020863B1 (en) | 2013-07-10 | 2014-07-10 | Rail vibration absorber |
PL14822882T PL3020863T3 (pl) | 2013-07-10 | 2014-07-10 | Amortyzator drgań szyny |
US14/903,451 US9970161B2 (en) | 2013-07-10 | 2014-07-10 | Rail vibration absorber |
ES14822882T ES2822352T3 (es) | 2013-07-10 | 2014-07-10 | Amortiguador de vibraciones de rieles |
BR112016000448-5A BR112016000448B1 (pt) | 2013-07-10 | 2014-07-10 | Amortecedor de vibração de trilho |
HK16109207.2A HK1221269A1 (zh) | 2013-07-10 | 2016-08-02 | 種軌道吸振器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310287329.6 | 2013-07-10 | ||
CN201310287329.6A CN103343496B (zh) | 2013-07-10 | 2013-07-10 | 一种轨道吸振器 |
Publications (1)
Publication Number | Publication Date |
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WO2015003634A1 true WO2015003634A1 (zh) | 2015-01-15 |
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ID=49278321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2014/081929 WO2015003634A1 (zh) | 2013-07-10 | 2014-07-10 | 一种轨道吸振器 |
Country Status (9)
Country | Link |
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US (1) | US9970161B2 (zh) |
EP (1) | EP3020863B1 (zh) |
CN (1) | CN103343496B (zh) |
BR (1) | BR112016000448B1 (zh) |
ES (1) | ES2822352T3 (zh) |
HK (1) | HK1221269A1 (zh) |
HU (1) | HUE052478T2 (zh) |
PL (1) | PL3020863T3 (zh) |
WO (1) | WO2015003634A1 (zh) |
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WO2023052828A1 (en) * | 2021-10-01 | 2023-04-06 | Arcelormittal | Vibration damper for railway tracks and a method of manufacturing thereof |
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ITUB20154061A1 (it) * | 2015-09-30 | 2017-03-30 | Pregymix S R L | Dispositivo di attenuazione acustica sotto-rotaia |
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Also Published As
Publication number | Publication date |
---|---|
BR112016000448A2 (pt) | 2017-07-25 |
EP3020863A4 (en) | 2017-04-26 |
BR112016000448B1 (pt) | 2021-12-21 |
EP3020863B1 (en) | 2020-09-02 |
EP3020863A1 (en) | 2016-05-18 |
US20160298300A1 (en) | 2016-10-13 |
ES2822352T3 (es) | 2021-04-30 |
HK1221269A1 (zh) | 2017-05-26 |
CN103343496B (zh) | 2016-06-08 |
US9970161B2 (en) | 2018-05-15 |
CN103343496A (zh) | 2013-10-09 |
PL3020863T3 (pl) | 2021-04-06 |
HUE052478T2 (hu) | 2021-04-28 |
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