CN106758569A - Damping-constraining noise reducing plate - Google Patents
Damping-constraining noise reducing plate Download PDFInfo
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- CN106758569A CN106758569A CN201611205613.4A CN201611205613A CN106758569A CN 106758569 A CN106758569 A CN 106758569A CN 201611205613 A CN201611205613 A CN 201611205613A CN 106758569 A CN106758569 A CN 106758569A
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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
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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
- E01B19/003—Means for reducing the development or propagation of noise
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- Structural Engineering (AREA)
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Abstract
The invention belongs to vibration and noise reducing field, and in particular to for one kind can increase structure itself damping, realize the damping-constraining device of good vibration and noise reducing function.A kind of damping-constraining noise reducing plate, including connecting plate and restraining plate, connecting plate setting connecting plate split corresponding with the mosaic difference of restraining plate is convex stupefied and restraining plate split is convex stupefied, connecting plate split is convex stupefied convex with restraining plate split at least one stupefied to set detent being fitted to each other on side, connecting plate split is convex stupefied and restraining plate split it is convex it is stupefied between be additionally provided with the elastomeric isolation bar that elastomeric material is made, the elastomeric isolation bar is locally embedded in detent, connecting plate is spelled button and is connected with restraining plate by elastomeric isolation bar, the elastomeric isolation bar and damping layer make connecting plate keep elastomeric isolation with restraining plate.Damping-constraining noise reducing plate of the present invention, simple structure is easy to use, and it can preferably intercept itself vibration transmission, so as to realize more preferably effect of vibration and noise reduction.
Description
Technical field
The invention belongs to vibration and noise reducing field, and in particular to for one kind can increase structure itself damping, realization well subtracts
Shake the damping-constraining device of decrease of noise functions.
Background technology
With developing rapidly for economic construction and Transportation Infrastructure Construction, subway, elevated railway, common railway and high speed
The rail transport such as railway mode has the advantages that carrying capacity is big, convenient and swift because of it, safe and reliable is sent out in shipping and passenger traffic field
Wave the effect for becoming more and more important.The noise pollution during rail transport how is reduced, mitigates the vibration of rail in transportation
With abrasion so as to advancing the track life-span, the security and comfortableness of raising rail transport, as close with people's production and living
Cut close a problem and it is more and more of interest by national governments and scientific worker.During rail transport, wheel-rail noise
It is main sound source of the train when below 250km/h speed is travelled, rail vibration is the main cause for producing noise, and transport vehicle
From great, load-carrying is big, the speed vibration for more exacerbating track high, so abrasion and the relevant issues of the track for triggering and wheel
Also it is extremely serious.The corrugated abrasion of such as top surface of rail, and in the wheel edge of wheel curved section and wheel lateral wearing, all to rail
Potential safety hazard has been buried in road transport, is frequently safeguarded the cost for being more the increase in transport.Currently used vibration and noise reducing is arranged
Shi Zhong, sets acoustic screen due to being limited by azimuth-range, and sound insulation and effectiveness in vibration suppression are poor.To alleviate the vibration of rail
And noise, there is researcher to develop some constrained damping structures, it is disposed on the inactive face of rail, absorb rail
Vibration mechanical energy and being converted dissipate, so as to realize weakening the purpose of rail noise radiation energy.Current engineer applied
Constrained damping structure in effect than middle promulgated by the State Council more prominent, using most often Patent No. ZL200610048318.2
The constrained damping structure in damper rail disclosed in bright patent, it includes connecting plate and restraining plate, on connecting plate and restraining plate
Convex-concave structure is respectively provided with, the convex-concave structure on connecting plate and restraining plate staggeredly coordinates each other, forms the gentle resistance for prolonging complications
Buddhist nun's chamber, damping material is provided with damping chamber, constitutes final labyrinth type constrained damping structure, and its typical structure is as shown in Figure 1.
Due to being provided with the damping chamber of maze-type structure in the structure, damping body bears effective working face of shearing force in damping chamber
Product is greatly increased, and overcomes traditional rail constrained damping structure due to using flat sheet, and damping layer is by steel rail web size
Limitation, effective work area of damping layer is limited, therefore can not reach the defect of preferable effect of vibration and noise reduction.But, in reality
Found in the application of border, in the labyrinth type constrained damping structure of current damper rail, connecting plate uses metal material with restraining plate
It is made, as shown in fig. 1, A and B at the interconnection at two ends are directly sealed connecting plate 31 using buckle structure with restraining plate 32
Close connection, with prevent the material of damping layer 33 from leaking in process of production and meet assembling and the accurate spacing technique of damping layer will
Ask.But by being found after a large amount of engineering practices, operationally, the partial vibration of rail can directly pass through rigid buckle structure
Restraining plate is reached and then to outside radiated noise, so as to weaken the actual effect of vibration and noise reduction of product.In addition, in ship deck
Same problem is there is also when being used for vibration and noise reducing using such constrained damping structure with the application places such as power-equipment housing.
In sum, market can preferably intercept itself vibration transmission in the urgent need to providing one kind, so as to realize more preferably
The constrained damping structure of effect of vibration and noise reduction.
The content of the invention
It is an object of the invention to solve the above problems, there is provided one kind can preferably intercept itself vibration transmission, enter one
The damping-constraining noise reducing plate of step lifting effect of vibration and noise reduction.
Damping-constraining noise reducing plate of the present invention is achieved in that including connecting plate and restraining plate, on connecting plate and restraining plate
It is respectively provided with convex-concave structure, it is stupefied that the convex-concave structure is specially spaced convex row on connecting plate or restraining plate, connecting plate
Damping chamber is constituted with the interlaced cooperation of convex-concave structure on restraining plate, damping material composition damping is set in damping chamber
Layer, it is characterised in that connecting plate setting connecting plate split corresponding with the mosaic difference of restraining plate is convex stupefied and restraining plate split is convex
It is stupefied, connecting plate split it is convex it is stupefied with restraining plate split it is convex it is at least one stupefied detent is set on side being fitted to each other, connecting plate
Split is convex stupefied and restraining plate split it is convex it is stupefied between be additionally provided with the elastomeric isolation bar that elastomeric material is made, the elastomeric isolation bar part
It is embedded in detent, connecting plate and restraining plate are spelled button and be connected by elastomeric isolation bar, the elastomeric isolation bar and damping layer
Connecting plate is set to keep elastomeric isolation with restraining plate.
According to actual needs, it is also provided with making connecting plate with restraining plate in connecting plate split between connecting plate and restraining plate
The convex stupefied protrusion direction of convex stupefied or restraining plate split keeps the elastomeric isolation bar of elastomeric isolation, the elastomeric isolation bar to be arranged on connection
Between the convex stupefied front end of plate and restraining plate, or it is arranged between the convex stupefied front end of restraining plate and connecting plate.For convenience of right
Elastomeric isolation bar carries out spacing, can also set detent in the convex stupefied front end of connecting plate, or/and restraining plate is convex stupefied
Front end sets detent, and elastomeric isolation bar is locally embedded in detent.In addition, the reliability in order to ensure connection, excellent
Choosing, the connecting plate split of the mosaic of connecting plate and restraining plate is convex stupefied to be respectively positioned on the convex stupefied outside of restraining plate split, Huo Zhelian
The restraining plate split of the mosaic of fishplate bar and restraining plate is convex stupefied to be respectively positioned on the convex stupefied outside of connecting plate split.
Additionally, in order to improve effect of vibration and noise reduction, counterweight mounting interface can also be set on restraining plate, counterweight is by matching somebody with somebody
Interface is re-mounted to be fixedly installed on restraining plate.The concrete form of the counterweight mounting interface is varied, and it includes restraining plate
The mounting groove of upper setting installs chamber etc., and the counterweight is arranged in mounting groove or installation cavity room.The counterweight it is specific
Form equally can be with varied, including steel plate, rod iron, sandstone, slag, metallic particles or concrete etc..In view of practicality
And price factor, when using steel plate or rod iron as counterweight, it is possible to use polylith sheet metal or many thin rod iron combinations are one
Rise and use, when steel plate or rod iron set multiple, can be linked together by cement or bonded adhesives, to improve globality.Separately
Outward, in order to further improve effect of vibration and noise reduction, the counterweight, restraining plate and damping layer can also constitute tuning quality vibration damping dress
Put, the intrinsic frequency correspondence of tuning quality vibration absorber is set using the predominant oscillatory frequencies of object；Or, counterweight is tuning matter
Amount vibration absorber, the intrinsic frequency correspondence of tuning quality vibration absorber is set using the predominant oscillatory frequencies of object.
In the present invention, the elastomeric material that the elastomeric isolation bar can be used includes rubber, elastic polyurethane and elasticity PVC
Deng.
Damping-constraining noise reducing plate of the present invention by between connecting plate and restraining plate set elastomeric material be made elasticity every
From bar, elastomeric isolation bar particularly is set in the mosaic of connecting plate and restraining plate, on the one hand, make rigid connecting plate and constraint
All the time there is no directly contact between plate, the vibration of application structure is needed by elastomeric isolation bar or damping layer after reaching connecting plate
Obstruct can just be transferred to restraining plate, because elastomeric isolation bar and damping layer material are respectively provided with good damping characteristic, Ke Yiyou
The dynamic transmission of effect ground resistance vibration isolation, the vibration of application structure through connecting plate will not be transferred directly to restraining plate and then be made an uproar to external radiation
Sound；On the other hand, after connecting plate sets elastomeric isolation bar with the mosaic of restraining plate, connecting plate, restraining plate and damping layer are constituted
Pure constrained damping structure, overcomes connecting plate in traditional constraints damping structures and is joined directly together in mosaic with restraining plate and lead
The local vibration-damping function loss of cause, improves effective work area of actual participation oscillation damping and energy dissipating；3rd, restraining plate is no longer by firm
Property buckle structure limitation, the Relative Vibration displacement between restraining plate and connecting plate is bigger, consumes energy more, and damping capacity is significantly carried
Rise, for these reasons, the integral vibration damping noise reduction of damping-constraining noise reducing plate of the present invention is outstanding, and many experiments show,
It is even more many that its vibration and noise reducing performance can lift 30%.Additionally, elastomeric isolation bar is also used as distance pieces simultaneously use,
The accurate spacing between connecting plate and restraining plate is ensure that during production, so as to ensure the optimum geometry of damping layer.In addition,
The meaning that damping-constraining noise reducing plate of the present invention sets up counterweight on restraining plate is：(1) substantially, it can be with for the rigidity effect of counterweight
The rigidity of restraining plate is significantly improved, is conducive to lifting the relative deformation between restraining plate and connecting plate and shear energy dissipation ability, example
The counterweight that such as steel plate, rod iron or concrete material are constituted can realize this technique effect；(2) tuning effect of counterweight is bright
Aobvious, the total quality that restraining plate increases after counterweight is greatly improved, and because damping layer material has good elasticity, restraining plate increases
Mass of vibration in the tuning quality system constituted with damping layer after counterweight is bigger, thus damping capacity is outstanding, noise reduction effect
Fruit is also more preferable, for example, the counterweight that the material such as steel plate, rod iron, sandstone, slag, metallic particles or concrete is constituted can
Realize this technique effect.Can certainly directly by the use of tuning quality vibration absorber as counterweight, its vibration damping frequency band is wider, just
In multiple vibration frequencies are controlled simultaneously, effect of vibration and noise reduction is improved.
Damping-constraining noise reducing plate of the present invention, simple structure is easy to use, and it can preferably intercept itself vibration transmission,
So as to realize more preferably effect of vibration and noise reduction, with vibration and noise reducing dependable performance, the advantages of cost performance is more superior, can extensive use
In the fields such as industrial equipment, ship equipment and track traffic.
Brief description of the drawings
Fig. 1 is the structural representation of existing rail damping-constraining noise reducing plate.
Fig. 2 is one of structural representation of damping-constraining noise reducing plate of the present invention and its application schematic diagram.
Fig. 3 is one of structural representation of connecting plate in damping-constraining noise reducing plate shown in Fig. 2.
Fig. 4 is the two of the structural representation of connecting plate in damping-constraining noise reducing plate shown in Fig. 2.
Fig. 5 is two and its application schematic diagram of the structural representation of damping-constraining noise reducing plate of the present invention.
Fig. 6 is three and its application schematic diagram of the structural representation of damping-constraining noise reducing plate of the present invention.
Fig. 7 is four and its application schematic diagram of the structural representation of damping-constraining noise reducing plate of the present invention.
Fig. 8 is five and its application schematic diagram of the structural representation of damping-constraining noise reducing plate of the present invention.
Fig. 9 is six and its application schematic diagram of the structural representation of damping-constraining noise reducing plate of the present invention.
Specific embodiment
Embodiment one
Damping-constraining noise reducing plate of the present invention, including connecting plate 1 as shown in Figures 2 and 3 and restraining plate 2, connecting plate 1 and constraint
2 are respectively provided with convex-concave structure on plate, and the convex-concave structure is specially spaced convex row stupefied 10 and restraining plate on connecting plate 1
Spaced convex row stupefied 11 on 2, the interlaced cooperation of convex-concave structure on connecting plate 1 and restraining plate 2 constitutes damping chamber,
Damping material is set in damping chamber and constitutes damping layer 3, connecting plate 1 is corresponding with the mosaic difference of restraining plate 2 to set connection
Plate split is convex stupefied and restraining plate split is convex stupefied, including the connecting plate split convex stupefied 13 and 15 that the both sides of connecting plate 1 are set, corresponding,
The both sides of restraining plate 2 set restraining plate split convex stupefied 12 and 14, wherein, restraining plate split convex stupefied 12 and 14 is convex with connecting plate split
Detent is set on the stupefied side that is fitted to each other, between connecting plate split convex stupefied 13 and restraining plate split convex stupefied 12 and connecting plate
The elastomeric isolation bar 4 that elastomeric material is made, the elasticity are further respectively had between split convex stupefied 15 and restraining plate split convex stupefied 14
Isolating bar 4 is local to be embedded in detent, and connecting plate 1 is spelled button and is connected with restraining plate 2 by elastomeric isolation bar 4, the elasticity
Isolating bar 4 and damping layer 3 make connecting plate 1 keep elastomeric isolation with restraining plate 2.
Illustrated as a example by the application on steel rail web surface by damping-constraining noise reducing plate of the present invention below, as shown in figure 1,
The shape of connecting plate 1 is corresponding with web of the rail surface configuration, using when, damping-constraining noise reducing plate of the present invention is pasted and fixed on rail
5 web of the rail both sides inactive face.
Damping-constraining noise reducing plate of the present invention by between connecting plate and restraining plate set elastomeric material be made elasticity every
From bar, elastomeric isolation bar particularly is set in the mosaic of connecting plate and restraining plate, on the one hand, make rigid connecting plate and constraint
All the time there is no directly contact between plate, the vibration of application structure is needed by elastomeric isolation bar or damping layer after reaching connecting plate
Obstruct can just be transferred to restraining plate, because elastomeric isolation bar and damping layer material are respectively provided with good damping characteristic, Ke Yiyou
The dynamic transmission of effect ground resistance vibration isolation, the vibration of application structure through connecting plate will not be transferred directly to restraining plate and then be made an uproar to external radiation
Sound；On the other hand, after connecting plate sets elastomeric isolation bar with the mosaic of restraining plate, connecting plate, restraining plate and damping layer are constituted
Pure constrained damping structure, overcomes connecting plate in traditional constraints damping structures and is joined directly together in mosaic with restraining plate and lead
The local vibration-damping function loss of cause, improves effective work area of actual participation oscillation damping and energy dissipating；3rd, restraining plate is no longer by firm
Property buckle structure limitation, the Relative Vibration displacement between restraining plate and connecting plate is bigger, consumes energy more, and damping capacity is significantly carried
Rise, for these reasons, the integral vibration damping noise reduction of damping-constraining noise reducing plate of the present invention is outstanding, and many experiments show,
It is even more many that its vibration and noise reducing performance can lift 30%.Additionally, elastomeric isolation bar 4 is also used as distance pieces simultaneously use,
The accurate spacing between connecting plate and restraining plate is ensure that in production, so as to ensure the optimum geometry of damping layer.
Certainly, the know-why based on this example, damping-constraining noise reducing plate of the present invention can be arranged on any non-work of rail
Make on surface, such as in addition to web of the rail surface, the in-orbit wing or the flange of rail can also be set, using when can be arranged according to actual condition.
In addition, the fixing assembling mode between damping-constraining noise reducing plate of the present invention and rail can also be bullet in addition to pasting and fixing
Spring clip such as grips at other fixing assembling modes, as long as ensure that the intensity and reliability of connection, may be used to this
Invention.In addition it is also possible to set positioning on connecting plate split convex stupefied 13 and 15 and restraining plate split convex stupefied 1 are fitted to each other side
Groove, can equally form effectively spacing to elastomeric isolation bar, be noted that in addition in addition to already mentioned elastomeric material,
Elastomeric isolation bar 4 can also be made of other materials such as elastic polyurethanes, all among the protection domain of application claims.On
State it is bright be equally applicable to other embodiment of the invention, be described in this together, behind be not repeated.
Spaced convex row is stupefied in addition to so that mode is arranged shown in Fig. 3 on connecting plate 1 in the present invention, can also be as schemed
Mode shown in 4 is arranged, i.e., continuous short convex stupefied, is positioned apart from the transverse direction and longitudinal direction of connecting plate plate body, accordingly about
Stupefied also the corresponding to of convex row on beam plate is arranged.Said structure form is all based on the simple change of this example know-why, all
Among the protection domain of application claims.
Damping-constraining noise reducing plate of the present invention, simple structure is easy to use, and it can preferably intercept itself vibration transmission,
So as to realize more preferably effect of vibration and noise reduction, with vibration and noise reducing dependable performance, the advantages of cost performance is more superior, can extensive use
In the fields such as industrial equipment, ship equipment and track traffic.
Embodiment two
Damping-constraining noise reducing plate of the present invention as shown in Figure 5, the difference with embodiment one is, except convex in connecting plate split
It is respectively provided between stupefied 13 and restraining plate split convex stupefied 12 and between connecting plate split convex stupefied 15 and restraining plate split convex stupefied 14
Being additionally provided with outside elastomeric isolation bar 4, between connecting plate and restraining plate makes connecting plate with restraining plate in the convex stupefied projection side of restraining plate split
To keep elastomeric isolation elastomeric isolation bar 6, the elastomeric isolation bar 6 be arranged on convex stupefied 18 and 19 front end of restraining plate 2 with
Between connecting plate 1；Additionally, connecting plate 1 is located at connecting plate respectively with the restraining plate split convex stupefied 12 and 14 of the mosaic of restraining plate 2
Convex stupefied 13 and 15 outside of split, the more solid reliability of connection effect of such attachment structure；In addition, connecting plate split convex stupefied 13
Detent is respectively provided with side being fitted to each other with restraining plate split convex stupefied 12 and 14 with 15, the both sides of elastomeric isolation bar 4
Respectively correspondingly it is local be embedded connecting plate split is convex stupefied and restraining plate split it is convex it is stupefied on detent is set.
Due to connecting plate split is convex stupefied and restraining plate split it is convex it is stupefied on detent is set simultaneously, elastomeric isolation bar 4
Positioning is more safe and reliable.
As shown in figure 5, still being illustrated by taking the application on steel rail web surface as an example, damping-constraining noise reducing plate described in this example
Application process it is essentially identical with embodiment one, be not repeated herein.Compared with embodiment one, due in connecting plate 1 and constraint
Elastomeric isolation bar 6 is additionally arranged between plate 2, elastomeric isolation bar 4 can ensure that connecting plate 1 keeps bullet with restraining plate 2 in the longitudinal direction of rail 5
Sexual isolation, elastomeric isolation bar 6 can ensure that connecting plate 1 laterally retains elastomeric isolation with restraining plate 2 in rail 5, it can be ensured that this
Connecting plate 1 will not occur directly contact all the time with restraining plate 2 in invention damping-constraining noise reducing plate, therefore, rail 5 during use
Vibration will not be transferred directly to restraining plate 2 and then to outside radiated noise through connecting plate 1, its vibration and noise reducing performance more has guarantor
Barrier, it is also relatively reliable.It is to be particularly noted that the energy difference of oscillation crosswise and the vertical vibration due to rail, therefore
In design, elastomeric isolation bar 4 and elastomeric isolation bar 6 can be made of different elastomeric materials, be conducive to targetedly isolating
The oscillation crosswise and vertical vibration of rail, improve the effect of isolation vibration, so as to further lift the final vibration and noise reducing of product
Performance, is also such when being used in other application structure.
Certainly, can be set based on the know-why described in this example, between connecting plate and restraining plate make connecting plate with about
Beam plate is connecting plate split is convex stupefied or the convex stupefied protrusion direction of restraining plate split keeps the elastomeric isolation bar of elastomeric isolation, the elasticity
Isolating bar can be arranged between the convex stupefied front end of connecting plate and restraining plate, or be arranged on the convex stupefied front end of restraining plate with
Between connecting plate, same effect is can act as, all among the protection domain of application claims.Due to elastomeric isolation bar 6
With the presence of elastomeric isolation bar 4, damping-constraining noise reducing plate of the present invention described in this example is in production without still further setting distance pieces.
Embodiment three
Damping-constraining noise reducing plate of the present invention as shown in Figure 6, the difference with embodiment one is, connecting plate 1 and restraining plate 2
The connecting plate split convex stupefied 13 and 15 of mosaic is located at convex stupefied 12 and 14 outside of restraining plate split respectively, and connecting plate split is convex stupefied
13 and 15 are correspondingly arranged detent being fitted to each other with restraining plate split convex stupefied 12 and 14 on side, elastomeric isolation bar 4
Two ends be locally embedded respectively connecting plate split is convex stupefied and restraining plate split it is convex it is stupefied on detent is set；Additionally, restraining plate 2
Outside set counterweight mounting interface, the counterweight mounting interface be specially on restraining plate 2 set mounting groove, the mounting groove
Surrounded by the draw-in groove wall 8 set on restraining plate 2, counterweight 7 is set in mounting groove, wherein counterweight 7 is made up of steel plate.
Compared with embodiment one, in the technical scheme described in this example, counterweight 7 is additionally arranged using mounting groove on restraining plate 2,
Again because damping layer 3 and elastomeric isolation bar 4 all have good elasticity, therefore counterweight 7, restraining plate 2 and damping layer 3 constitute one
Tuning quality vibration insulating system, it can preferably consume the vibration for absorbing rail, reduce the noise that vibration triggers, vibration and noise reducing
It is better, the intrinsic frequency of tuning quality vibration insulating system correspondence can be used the predominant oscillatory frequencies of object in design
Set.The Advantageous Effects for setting up counterweight are：(1) substantially, it can significantly improve restraining plate to the rigidity effect of counterweight
Rigidity, is conducive to lifting the relative deformation between restraining plate and connecting plate and shear energy dissipation ability；(2) tuning effect of counterweight is bright
Aobvious, the total quality that restraining plate increases after counterweight is greatly improved, and because damping layer material has good elasticity, restraining plate increases
Mass of vibration in the tuning quality system constituted with damping layer after counterweight is bigger, thus damping capacity is outstanding, noise reduction effect
Fruit is also more preferable.For these reasons, invention increases counterweight damping-constraining noise reducing plate effect of vibration and noise reduction more preferably.
The selection range of certain counterweight 7 is very wide, in addition to using steel plate, can also use the materials such as rod iron or concrete,
In addition, the counterweight 7 can be used in combination using polylith sheet metal or many thin rod irons, when steel plate or rod iron set many
When individual, can be linked together by cement or bonded adhesives, to improve globality, can act as good technique effect, all
Among the protection domain of application claims.
Example IV
Damping-constraining noise reducing plate of the present invention as shown in Figure 7, the difference with embodiment three is to set counterweight on restraining plate 2
Mounting interface, the counterweight mounting interface is specially the multiple mounting grooves set on restraining plate 2, and the mounting groove is by restraining plate 2
The draw-in groove wall 8 of upper setting is surrounded, and counterweight 7 is set in mounting groove, and wherein counterweight 7 is made up of rod iron.
Similar to embodiment three, counterweight, restraining plate and damping layer constitute tuning quality vibration absorber, if by the tuning matter
The intrinsic frequency correspondence for measuring vibration absorber is set using the predominant oscillatory frequencies of object, will to greatest extent play tuning quality and subtract
The effect of vibrating device.In this example, tuning quality vibration absorber is constituted for counterweight 7, restraining plate 2 and damping layer 3, wherein, counterweight 7
It is made up of many rod irons, by the quantity for adjusting rod iron, it is possible to realize adjusting the intrinsic frequency of the tuning quality vibration absorber
Effect, therefore in use, can accurately be adjusted to the intrinsic frequency of the tuning quality vibration absorber with scene, make its with
Predominant oscillatory frequencies using object are corresponding, so as to play optimal vibration and noise reducing effect.
Embodiment five
Damping-constraining noise reducing plate of the present invention as shown in Figure 8, the difference with embodiment two is, restraining plate convex stupefied 18 and 19
Front end be provided with detent, elastomeric isolation bar 6 is local to be embedded in detent；Additionally, set to match somebody with somebody on restraining plate 2 re-mounting
Interface, the counterweight mounting interface is specially the installation chamber that the installation cavity side wall 9 of restraining plate outside setting is surrounded, and installs chamber
Interior setting counterweight 7, wherein counterweight 7 is made up of loaded concrete material.
Compared with example two, in the technical scheme described in this example, counterweight 7 is additionally arranged using installing chamber on restraining plate 2,
Again because damping layer 3 and elastomeric isolation bar all have good elasticity, therefore counterweight 7, restraining plate 2 and damping layer 3 may be constructed
One tuning quality vibration insulating system, it can preferably consume the vibration for absorbing rail, reduce the noise that vibration triggers, vibration damping drop
That makes an uproar is better.Additionally, the selection range of counterweight 7 is very wide, in addition to using loaded concrete, steel plate, rod iron can also be used
Deng metal material, or utilize sandstone, slag, metallic particles that filling, or filling sand are irrigated after mixing with solidifiable bonded adhesives
The materials such as stone, metallic particles, slag can act as good technique effect again by closed at both ends etc. technical scheme, all exist
Within the protection domain of application claims.The Advantageous Effects for setting up counterweight are：(1) rigidity effect of counterweight is obvious, its
The rigidity of restraining plate can be significantly improved, is conducive to lifting the relative deformation between restraining plate and connecting plate and shear energy dissipation energy
The counterweight that the material such as power, such as steel plate, rod iron or concrete is constituted can realize this technique effect；(2) tuning of counterweight
Substantially, the total quality that restraining plate increases after counterweight is greatly improved effect, because damping layer material has good elasticity, constraint
The mass of vibration that plate increases in the tuning quality system constituted with damping layer after counterweight is bigger, thus damping capacity is outstanding,
Noise reduction is also more preferable, for example, the counterweight that the material such as steel plate, rod iron, sandstone, slag, metallic particles or concrete is constituted
This technique effect can be realized.For these reasons, the vibration damping invention increases the damping-constraining noise reducing plate of counterweight drops
Make an uproar better.
Know-why based on this example, it is convex stupefied and restraining plate between that elastomeric isolation bar 6 can also be arranged on connecting plate, or
Person is convex stupefied and restraining plate between and restraining plate is convex stupefied sets elastomeric isolation bar 6 simultaneously and connecting plate between in connecting plate.Phase
Answer, can be set from detent in the convex stupefied front end of connecting plate, then the part of elastomeric isolation bar 6 is embedded in detent
In；Or detent, 6 innings of elastomeric isolation bar are set simultaneously in the convex stupefied front end of connecting plate and the convex stupefied front end of restraining plate
Portion is embedded in detent.Above-mentioned technical proposal is all based on the simple change of the technology of the present invention principle, herein only with word
It is described, not still further accompanying drawing, all among the protection domain of application claims.
Embodiment six
Damping-constraining noise reducing plate of the present invention as shown in Figure 9, the difference with embodiment five is, the installation on the outside of restraining plate 2
Chamber sets two, and counterweight is tuning quality vibration absorber in installing chamber, and the tuning quality vibration absorber is by elastomer layer
16 and mass 17 constitute, the intrinsic frequency of tuning quality vibration absorber correspondence is set using the predominant oscillatory frequencies of object.
Compared with embodiment five, in the technical scheme described in this example, counterweight is made up of tuning quality vibration absorber, and it is not only
All advantages with counterweight described in embodiment five, its effect that can also individual play tuning quality vibration damping, therefore constraint
The vibration and noise reducing performance of damping noise-reducing plate is stronger.Counterweight is made up of two tuning quality vibration absorbers in this example, in practical application
In can also set one, three it is even more many.The positive effect for setting multiple tuning quality vibration absorbers is, if will be many
The intrinsic frequency of individual tuning quality vibration absorber is corresponding with using multiple predominant oscillatory frequencies on object respectively, it is possible to achieve same
When control using multiple frequencies on object vibration, its vibration damping frequency band is wider, is conducive to further improving effect of vibration and noise reduction, its
Applicability is stronger.
It is pointed out that for convenience of description, in embodiment, with damping-constraining noise reducing plate of the present invention in rail rail
Illustrated as a example by application at waist.But, damping-constraining noise reducing plate of the present invention is equally applicable to the industry such as ship main auxiliary machine
Housing, ship deck, ship bin of power-equipment etc. using object vibration control, using when, it is only necessary to according to it is actual should
It is with the shape of object, the shape of damping-constraining noise reducing plate of the present invention is corresponding, good vibration damping drop can be realized
Make an uproar effect, be only described with word herein, no longer illustrate one by one.
Embodiment in the present invention is only more preferably to illustrate technical scheme, be should not be considered as to limit of the invention
System, technical characteristic in many of which embodiment can also cross-reference, based on the technology of the present invention principle, those skilled in the art
Combination can be re-started to technical scheme described in above-described embodiment or some of which element is carried out simply using similar technique
Replace, as long as being based on know-why of the invention, all in the protection domain of application claims.
Claims (11)
1. a kind of damping-constraining noise reducing plate, including connecting plate and restraining plate, convex-concave structure is respectively provided with connecting plate and restraining plate,
The convex-concave structure is specially that spaced convex row on connecting plate or restraining plate is stupefied, the convex-concave knot on connecting plate and restraining plate
Structure is interlaced to coordinate composition damping chamber, and setting damping material in damping chamber constitutes damping layer, it is characterised in that connecting plate
Setting connecting plate split corresponding with the mosaic difference of restraining plate is convex stupefied and restraining plate split is convex stupefied, connecting plate split it is convex stupefied and
Restraining plate split it is convex it is at least one stupefied detent is set on side being fitted to each other, connecting plate split is convex stupefied with restraining plate split
It is convex it is stupefied between be additionally provided with the elastomeric isolation bar that elastomeric material is made, the elastomeric isolation bar is locally embedded in detent, even
Fishplate bar is spelled button and is connected with restraining plate by elastomeric isolation bar, and the elastomeric isolation bar and damping layer make connecting plate be kept with restraining plate
Elastomeric isolation.
2. damping-constraining noise reducing plate according to claim 1, it is characterised in that being additionally provided between connecting plate and restraining plate makes
Connecting plate and restraining plate are connecting plate split is convex stupefied or the convex stupefied protrusion direction of restraining plate split keeps the elastomeric isolation of elastomeric isolation
Bar, the elastomeric isolation bar is arranged between the convex stupefied front end of connecting plate and restraining plate, or to be arranged on restraining plate convex stupefied
Front end and connecting plate between.
3. damping-constraining noise reducing plate according to claim 2, it is characterised in that the convex stupefied front end of connecting plate is provided with positioning
Groove, or/and the convex stupefied front end of restraining plate is provided with detent, and elastomeric isolation bar is locally embedded in detent.
4. damping-constraining noise reducing plate according to claim 1, it is characterised in that the company of connecting plate and the mosaic of restraining plate
Fishplate bar split it is convex it is stupefied be respectively positioned on the convex stupefied outside of restraining plate split, or connecting plate and the mosaic of restraining plate restraining plate split
It is convex stupefied to be respectively positioned on the convex stupefied outside of connecting plate split.
5. damping-constraining noise reducing plate according to claim 1, it is characterised in that the outside of restraining plate sets and connect with re-mounting
Mouthful, counterweight is fixedly installed on restraining plate by counterweight mounting interface.
6. damping-constraining noise reducing plate according to claim 5, it is characterised in that the counterweight mounting interface includes restraining plate
The mounting groove of upper setting installs chamber, and the counterweight is arranged in mounting groove or installation cavity room.
7. the damping-constraining noise reducing plate according to claim 5 or 6, it is characterised in that the counterweight includes steel plate, rod iron, sand
Stone, slag, metallic particles or concrete.
8. damping-constraining noise reducing plate according to claim 7, it is characterised in that the steel plate, rod iron set multiple, and lead to
Cross cement or bonded adhesives links together.
9. the damping-constraining noise reducing plate according to claim 5 or 6, it is characterised in that the counterweight, restraining plate and damping layer
Tuning quality vibration absorber is constituted, the intrinsic frequency correspondence of the tuning quality vibration absorber uses the predominant oscillatory frequencies of object
Set.
10. the damping-constraining noise reducing plate according to claim 5 or 6, it is characterised in that the counterweight is tuning quality vibration damping
Device, the intrinsic frequency correspondence of the tuning quality vibration absorber is set using the predominant oscillatory frequencies of object.
11. damping-constraining noise reducing plates according to claim 1, it is characterised in that the elastomeric material includes rubber, elasticity
Polyurethane and elasticity PVC.
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| CN201611205613.4A CN106758569B (en) | 2016-12-23 | 2016-12-23 | Constrained damping noise reduction plate |
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| CN201611205613.4A CN106758569B (en) | 2016-12-23 | 2016-12-23 | Constrained damping noise reduction plate |
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| CN106758569B CN106758569B (en) | 2020-05-19 |
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| CN109137634A (en) * | 2018-09-25 | 2019-01-04 | 同济大学 | Band * type extension layer damping-constraining steel rail |
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| CN110184861A (en) * | 2019-05-29 | 2019-08-30 | 长安大学 | A kind of compound passive energy dissipation denoising device |
| CN111608031A (en) * | 2020-05-19 | 2020-09-01 | 中铁六局集团有限公司 | Construction method for installing noise-reduction steel rail damping plate of track |
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