CN206635579U - A kind of cushion blocking - Google Patents
A kind of cushion blocking Download PDFInfo
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- CN206635579U CN206635579U CN201620586402.9U CN201620586402U CN206635579U CN 206635579 U CN206635579 U CN 206635579U CN 201620586402 U CN201620586402 U CN 201620586402U CN 206635579 U CN206635579 U CN 206635579U
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Abstract
A kind of cushion blocking, the cushion blocking thickness direction are made up of several layered periodicity units, are formed if layered periodic unit is superimposed with each other including dried layer periodic substructure, and the composition material of adjacent periodic substructure is different；The periodic substructure also can set some periodicity from structure in length and width.The cushion blocking with layered periodic structure feature is placed between concrete sleeper or track plates track and the flange of rail, is fixed by fastener system；Iron chair is may also set up between the steel rail vibration absorbing pad and sleeper or track plates track, improves its bearing strength.The steel rail vibration absorbing pad can be used in urban track traffic, high-speed railway, heavy haul railway, common railway, fabric structure, machinery equipment and bridge structure, contribute to its vibration and noise reducing to control, while have the advantages of structure type is simple, easy to maintenance flexible.
Description
Technical field
The utility model belongs to antivibration area, be related to suitable for urban track traffic, high-speed railway, heavy haul railway,
The vibration damping mat structure and its application method of common railway, fabric structure, machinery equipment and bridge structure etc..
Background technology
With the continuous development of technology of track traffic, the environmental protection problem of current orbit traffic is more and more closed
Note, particularly its caused noise and vibration problem.
The vibration and noise reducing measure of current track traffic is mainly started with terms of three：(steel rail grinding is controlled in vibration source/sound source
Deng measure), control is controlled (by using spring secures rail to sleeper and floating plate track etc.) and by vibration body/by sound body on route of transmission
System.Generally use spring secures rail to sleeper is vibrated caused by wheel rail system to realize vibration isolation, so as to realize the reduction of sub-rail foundation vibration.It is right
In fastener vibration reducing measure, data shows, the spring secures rail to sleeper such as rail dampener fastener and pioneer's type fastener answering in China's subway
With unsatisfactory, serious rail extraordinary wave mill is induced, and ripple mill aggravation can cause the dither of wheel track on the contrary, cause car
Resonance.Main cause is that spring secures rail to sleeper causes Wheel Rail Vibration energy to isolate with structure under rail and stagnant because rubber cushion rigidity is too soft
Rail is stayed in, the damage to rail and fastening elastic rod is larger, or even rubber cushion rigidity is too soft can cause the vertical dynamic displacement increase of rail,
Train is set to face derailing dangerous.
Utility model content
The purpose of this utility model is to propose that a kind of track traffic has stratiform with defect in view of the shortcomings of the prior art
The steel rail vibration absorbing pad of periodic structure, its is simple in construction, and with the reduction such as spring secures rail to sleeper and floating plate track by reducing lower junction
The thinking that the method for structure rigidity carrys out vibration damping is different, and the utility model is ensureing rail by the way that periodic structure is introduced into steel rail vibration absorbing pad
The rigidity of road structure is sufficiently high simultaneously, and vibration damping is realized to the bandgap principle of elastic wave using periodic structure in solid state physics
Purpose, contribute to urban track traffic, high-speed railway and heavy haul railway vibration and noise reducing control, promote social harmony development, especially
Apply to urban track traffic, high-speed railway, heavy haul railway and common railway.
To reach above-mentioned purpose, the utility model uses following technical scheme：
A kind of cushion blocking, has layered periodic structure, and used geometric parameter and material parameter are able to produce a fixed width
The band gap of degree, and the dominant frequency of all kinds of vibrations can be covered so that protected or environment influence structure body vibration it is very big
Decay, it is characterised in that：The cushion blocking is made up of in thickness direction at least two layered periodicity units, each layered periodicity list
Member is superimposed with each other by least two layers of periodic substructure to be formed, and the composition material of adjacent periodic substructure is different；
In length and width are set from structure some cycles in the periodic substructure；The thickness of the periodic substructure
Degree is between 1st/20th of flange of rail width and 1/10th；The cycle is from structure and periodic substructure combining form
Shared or cutout relation.
The thickness of each layered periodicity unit is identical, the chi of corresponding periodic substructure in each periodic unit
It is very little identical with material.
The thickness of each layer periodic substructure shows raising with vibration wavelength one of interest in layered periodic unit
Effectiveness in vibration suppression.
The periodic substructure is shaped as cuboid, and its thickness is less than length and width.
The composition material of the periodic substructure is divided into rigid material and elastomeric material.
The rigid material is alloy material or metal material, and the elastomeric material is elastomeric material or resin material.
The cycle is identical with material from shape, the size of structure, presented in periodic substructure length and width direction etc.
Gap periods are arranged.
The cycle from structure be column or cone.
Periodic structure is a kind of structure type that the basic component units of object are accumulated in the same fashion, periodically
Presence can forbid the frequency range of certain Propagation of Classic Wave in structure, and this frequency range is referred to as band gap.Frequency band gap it
Interior elastic wave can be greatly attenuated by its propagation during such a structure, and the elastic wave outside band gap can then pass through knot
Structure.
The utility model proposes a kind of track traffic there is the steel rail vibration absorbing pad of layered periodic structure, pass through rational design
Geometric parameter and material parameter, the band gap of one fixed width can be produced, and the dominant frequency of all kinds of vibrations can be covered, so that being protected
Shield or environment influence the body vibration significant attenuation of structure.Compared to other vibration damping forms, steel rail vibration absorbing pad tool of the present utility model
There is following advantage:
(1) the band gap properties vibration damping of periodic structure in itself is utilized, does not change the rigidity of structure.
(2) periodic structure band gap has certain width, rather than single frequency.Therefore, periodic structure can isolate one
Determine the vibration in frequency range, possess higher synthesis damping property.
(3) periodic structure of steel rail vibration absorbing pad improves the firm of steel rail vibration absorbing pad using the combination of rigid layer and flexible layer
Degree, improve the security of structure.
Specifically, a kind of steel rail vibration absorbing pad with layered periodic structure feature, the steel rail vibration absorbing pad thickness direction
It is made up of several layered periodicity units, is formed if layered periodic unit is superimposed with each other including dried layer periodic substructure,
The composition material of adjacent periodic substructure is different；The periodic substructure also can set some weeks in length and width
Phase property is from structure.
The thickness of layered periodic unit should be identical, the cycle son knot that single stratiform periodic unit forms according to it
Structure can form 2 periodic units, 3 periodic units or multicycle unit, in periodic unit the size of corresponding periodic substructure with
Material should be identical.
The thickness of each layer periodic substructure shows raising vibration damping with vibration wavelength one of interest in the periodic unit
Effect.The width of the periodic substructure matches with length and iron chair support rail spot size under rail rail；Cycle
Structure is shaped as cuboid, and its thickness is much smaller than length and width；The composition material material of the periodic substructure is divided into rigidity
Material and elastomeric material, preferably, rigid material can be alloy material or metal material, elastomeric material can be elastomeric material or
Resin material.
The cycle should be identical from the shape, size and material of structure, is presented in periodic substructure length and width direction
Necessarily periodic arrangement at equal intervals.The cycle from the geometry of structure can be any three-dimensional shape, preferably, can be column
Body or cone；The cycle from structure and periodic substructure combining form can be shared relation or cutout relation；It is described
Cutout relation refers to remove the cycle from structure by scratching in periodic substructure so as to form hole；The shared relation is tied in cycle
Associated period is inserted in hole in structure from structure.
A kind of application method of the steel rail vibration absorbing pad with layered periodic structure feature, the steel rail vibration absorbing pad are placed in coagulation
Between native sleeper or track plates track and the flange of rail, it is fixed by fastener system；The steel rail vibration absorbing pad and sleeper or rail
Iron chair is may also set up between guidance tape track, improves its bearing strength.
The described steel rail vibration absorbing pad with layered periodic structure feature is in urban track traffic, high-speed railway, heavily loaded iron
Application in road and common railway, it can also be used to other machinery and building basis vibration damping.
By adopting the above-described technical solution, the utility model has the advantages that：
1. by changing the form of rail rubber cushion, using the band gap properties of periodic structure, ensureing rail inferior portion structure
Rigidity and not additional other structures under conditions of, reached effectiveness in vibration suppression；
2. using the thinking of structural vibration reduction, train operational safety and stationarity present in traditional vibration damping thinking are reduced
Hidden danger；
3. the vibration that this rail rubber cushion with layered periodic structure can isolate in the range of certain frequency, possesses higher
Comprehensive damping property；
4. the rail rubber mat structure form of layered periodic structure is simply and easy to maintenance flexible.
Brief description of the drawings
Fig. 1 is that a kind of structure of steel rail vibration absorbing pad with layered periodic structure feature of the utility model and application method are shown
It is intended to, its periodic substructure is 2 periodic units.
Fig. 2 is the steel rail vibration damping with layered periodic structure feature that the utility model periodic substructure is 2 periodic units
The effectiveness in vibration suppression comparison diagram of pad and gum material cushion blocking.
Fig. 3 is the steel rail vibration damping with layered periodic structure feature that the utility model periodic substructure is 4 periodic units
The structural representation of pad.
Fig. 4 is that the utility model periodic substructure is respectively that 2 periodic units and 4 periodic units have layered periodic structure
The steel rail vibration absorbing pad effectiveness in vibration suppression comparison diagram of feature.
Fig. 5 is that the utility model shows with the cycle from the steel rail vibration damping mat structure with layered periodic structure feature of structure
It is intended to, its periodic substructure is 2 periodic units.
Embodiment
The utility model is further described below in conjunction with accompanying drawing illustrated embodiment.
Referring to Fig. 1, a kind of application method of the steel rail vibration absorbing pad with layered periodic structure feature, the steel rail vibration damping
Pad 1 is placed between concrete sleeper 5 or track plates track and the bottom of rail 3, is fixed by fastener system 2；The steel
Iron chair is may also set up between rail cushion blocking and sleeper or track plates track, improves its bearing strength.
Embodiment 1：The thickness direction of steel rail vibration absorbing pad 1 is made up of several layered periodicity units, layered periodic unit
Formed if being superimposed with each other by dried layer periodic substructure, the composition material of adjacent periodic substructure is different；The periodic substructure
Composition material be divided into elastomeric material 7 and rigid material 8, preferably, elastomeric material 7 can be elastomeric material or resin material,
Rigid material can be alloy material or metal material 8.As shown in Figure 1.
The thickness of each layer periodic substructure is shown with vibration wavelength one of interest in the periodic unit of steel rail vibration absorbing pad 1
Effectiveness in vibration suppression is improved, and its width and length match with iron chair support rail spot size under rail.
The periodic substructure of steel rail vibration absorbing pad 1 is shaped as cuboid, its thickness between flange of rail width 1/20th
To between 1/10th.
The thickness of the periodic unit of steel rail vibration absorbing pad 1 should be identical, according to vibration isolation needs, single stratiform periodic unit root
2 periodic units, 3 periodic units or multicycle unit can be formed according to periodic substructure of its composition, it is corresponding in periodic unit
The size of periodic substructure should be identical with material.
The structure of 2 periodic units is as shown in figure 1, its effectiveness in vibration suppression is shown in Fig. 2.It can be seen that compared with gum structure, cycle knot
The effectiveness in vibration suppression of structure is very outstanding in low-frequency range；The structure of 4 periodic units is as shown in figure 3, its effectiveness in vibration suppression is shown in Fig. 4, it is seen that
The bigger effectiveness in vibration suppression of unit periodicity is better.But it is still to consider the thickness in space between the flange of rail and concrete sleeper during practice,
The thickness of each straton structure is between 1st/10th to ten/20th of flange of rail width in cushion blocking periodic unit.
Embodiment 2：The periodic substructure of the steel rail vibration absorbing pad 1 also can length and width set some cycles from
Structure, these described cycles include hole 9 and obturator 10 from structure, and these described holes must be identical structure chi
Very little, identical rule is distributed, in all directions equidistantly；In these holes 9 can be set some columns or cone and its
The obturator 10 of its shape, an entirety is overlapped into periodic track plate 1 afterwards, is presented on length longitudinal direction and width transverse direction
Necessarily periodic arrangement at equal intervals, as shown in Figure 5.Preferably, except the column cycle is in addition to the form of structure 9, can also adopt
It is low from structure, its good damping result, difficulty of construction with the taper cycle.
Structure of the cycle of the steel rail vibration absorbing pad 1 from the hole 9 and obturator 10 of structure in the range of length and width
Number should all be more than 3, and its physical dimension is less than the 1/10 of steel rail vibration absorbing pad 1, and its effectiveness in vibration suppression is notable；In order to construct and conserve
Easy to maintenance, the cycle should be concordant with steel rail vibration absorbing pad 1 from structural thickness.
Track needs the wavelength of the ripple of vibration damping shorter, hole 9 and obturator of the described cycle of steel rail vibration absorbing pad 1 from structure
10 in the range of certain length, width and thickness periodicity it is more.
Embodiment 3：Application of the present utility model is not limited solely to track traffic, physical dimension slightly adjust after in machinery
Equipment and building etc. need come into operation in the field of vibration reducing measure.For example it can be added in the floor of residential building
One layer of cushion blocking with layered periodic structure feature, plays a part of weak vibration of floor, greatly reduces upstairs resident's
The influence of noise that life activity is brought to resident downstairs；Ship hull vibration can not only influence crewman caused by the operating of ship's machinery
Body-sensing, cause ocean noise, can also weaken the intensity of hull, adding one layer between the installing plate and hull substrate of machine has layer
The cushion blocking of shape periodic structure feature, it can effectively weaken the harm that ship's machinery vibration is brought；And vibration isolation system is for bridge
Also critically important, the vibration isolation system of bridge can provide horizontal flexibility so as to extend its horizontal cycle for bridge, while the vibration that can dissipate
Energy, and to there is enough rigidity to support bridge, the cushion blocking with layered periodic structure feature is arranged at the bearing of bridge
These effects can be reached.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this reality
With new.Person skilled in the art obviously can easily make various modifications to these embodiments, and saying herein
Bright General Principle is applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to
The embodiment stated, according to announcement of the present utility model, do not depart from that the utility model category made changes those skilled in the art
Entering and change all should be within the scope of protection of the utility model.
Claims (8)
1. a kind of cushion blocking, has layered periodic structure, used geometric parameter and material parameter are able to produce one fixed width
Band gap, and the dominant frequency of all kinds of vibrations can be covered, so that being protected or environment influences the body vibration of structure and greatly declined
Subtract, it is characterised in that：The cushion blocking is made up of in thickness direction at least two layered periodicity units, each layered periodicity unit
It is superimposed with each other and is formed by least two layers of periodic substructure, the composition material of adjacent periodic substructure is different；
In length and width are set from structure some cycles in the periodic substructure；The thickness of the periodic substructure is situated between
Between 1st/20th of flange of rail width and 1/10th；The cycle from structure and periodic substructure combining form be shared
Or cutout relation.
2. cushion blocking according to claim 1, it is characterised in that：The thickness phase of each layered periodicity unit
Together, the size of periodic substructure corresponding in each periodic unit is identical with material.
3. cushion blocking according to claim 1, it is characterised in that：Each layer periodic substructure in layered periodic unit
Thickness shows raising effectiveness in vibration suppression with vibration wavelength one of interest.
4. cushion blocking according to claim 1, it is characterised in that：The periodic substructure is shaped as cuboid, and it is thick
Degree is less than length and width.
5. cushion blocking according to claim 1, it is characterised in that：The composition material of the periodic substructure is divided into rigid material
Material and elastomeric material.
6. cushion blocking according to claim 5, it is characterised in that：The rigid material is alloy material or metal material,
The elastomeric material is elastomeric material or resin material.
7. cushion blocking according to claim 1, it is characterised in that：The cycle is from the shape of structure, size and material phase
Together, periodic arrangement at equal intervals is presented in periodic substructure length and width direction.
8. cushion blocking according to claim 1, it is characterised in that：The cycle from structure be column or cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620586402.9U CN206635579U (en) | 2016-06-16 | 2016-06-16 | A kind of cushion blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620586402.9U CN206635579U (en) | 2016-06-16 | 2016-06-16 | A kind of cushion blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206635579U true CN206635579U (en) | 2017-11-14 |
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ID=60260263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620586402.9U Active CN206635579U (en) | 2016-06-16 | 2016-06-16 | A kind of cushion blocking |
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| CN (1) | CN206635579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725328A (en) * | 2017-11-22 | 2018-02-23 | 四川长虹空调有限公司 | A kind of compressor of air conditioner cushion socket |
| CN112626932A (en) * | 2020-12-22 | 2021-04-09 | 中国铁路设计集团有限公司 | Full-paved periodic cushion shock-absorbing ballast bed |
-
2016
- 2016-06-16 CN CN201620586402.9U patent/CN206635579U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725328A (en) * | 2017-11-22 | 2018-02-23 | 四川长虹空调有限公司 | A kind of compressor of air conditioner cushion socket |
| CN107725328B (en) * | 2017-11-22 | 2019-04-23 | 四川长虹空调有限公司 | A kind of compressor of air conditioner cushion socket |
| CN112626932A (en) * | 2020-12-22 | 2021-04-09 | 中国铁路设计集团有限公司 | Full-paved periodic cushion shock-absorbing ballast bed |
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