阅读说明：本技术 声子晶体隔振器及浮置板轨道隔振设备 (Phonon crystal vibration isolator and floating plate track device for vibration insutation ) 是由 史海欧 王平 罗信伟 赵才友 刘堂辉 盛曦 刘文武 易强 王刘翀 于 2019-07-10 设计创作，主要内容包括：本发明提供一种声子晶体隔振器及浮置板轨道隔振设备,涉及隔振设备领域；该声子晶体隔振器包括：多组隔振元胞；多组隔振元胞沿振源的振动方向排布,且相邻两组隔振元胞弹性连接；隔振元胞包括基体组件和至少两组振子环组件,振子环组件套设于基体组件上,且振子环组件能够相对于基体组件振动,每组振子环组件的固有振动频率均不相同。弹性波与振子环组件反向共振耦合,一组隔振元胞上设置至少两组固有频率不同的振子环组件与基体组件连接,使得该声子晶体隔振器对应出现至少两组的带隙,因此扩大了声子晶体隔振器的吸收弹性波的频率范围,提升了隔振效果。浮置板轨道隔振设备包括上述声子晶体隔振器。(The present invention provides a kind of phonon crystal vibration isolator and floating plate track device for vibration insutation, is related to device for vibration insutation field；The phonon crystal vibration isolator includes: multiple groups vibration isolation cellular；Multiple groups vibration isolation cellular is arranged along the direction of vibration of vibration source, and two adjacent groups vibration isolation cellular elastic connection；Vibration isolation cellular includes matrix component and at least two groups oscillator ring assemblies, and oscillator ring assemblies are sheathed in matrix component, and oscillator ring assemblies can be vibrated relative to matrix component, and the eigentone of every group of oscillator ring assemblies is all different.Elastic wave and the reversed resonance coupling of oscillator ring assemblies, the different oscillator ring assemblies of at least two groups intrinsic frequency are arranged on one group of vibration isolation cellular to connect with matrix component, so that the phonon crystal vibration isolator is corresponding to there is the band gap of at least two groups, therefore the frequency range for expanding the absorption elastic wave of phonon crystal vibration isolator, improves vibration isolating effect.Floating plate track device for vibration insutation includes above-mentioned phonon crystal vibration isolator.)

1. a kind of phonon crystal vibration isolator characterized by comprising multiple groups vibration isolation cellular (100)；

Vibration isolation cellular (100) described in multiple groups is arranged along the direction of vibration of vibration source, and the elasticity of vibration isolation cellular (100) described in two adjacent groups Connection；

The vibration isolation cellular (100) includes matrix component (110) and at least two groups oscillator ring assemblies (120), the oscillator ring group Part (120) is sheathed on described matrix component (110), and the oscillator ring assemblies (120) can be relative to described matrix component (110) it vibrates, the eigentone of oscillator ring assemblies (120) described in every group is all different.

2. phonon crystal vibration isolator according to claim 1, which is characterized in that the oscillator ring assemblies (120) include bullet Property connection ring (121) and oscillator ring (122)；

The elastic adapter ring (121) is sheathed on the outside of described matrix component (110), and the oscillator ring (122) is sheathed on described On the outside of elastic adapter ring (121).

3. phonon crystal vibration isolator according to claim 2, which is characterized in that described matrix component (110) includes pedestal (111) and elastomer block (112)；The elastomer block (112) is arranged and is connect along vibration source direction of vibration with the pedestal (111), institute Elastic adapter ring (121) is stated to be sheathed on the outside of the pedestal (111).

4. phonon crystal vibration isolator according to claim 3, which is characterized in that the pedestal (111) has holding tank, institute Elastomer block (112) is stated to be set in holding tank.

5. phonon crystal vibration isolator according to claim 3, which is characterized in that the elastic adapter ring (121) uses rubber Rubber ring.

6. phonon crystal vibration isolator according to claim 5, which is characterized in that the oscillator ring (122) uses steel loop.

7. phonon crystal vibration isolator according to claim 6, which is characterized in that the interior ring-side wall cloth glue of the rubber ring, And, the interior ring-side wall cloth glue of the steel loop Nian Jie with the pedestal (111) lateral wall, and it is Nian Jie with the rubber ring.

8. the phonon crystal vibration isolator according to any one of claim 3-7, which is characterized in that vibration isolation described in multiple groups In cellular (100), wherein vibration isolation described in the end face of the pedestal (111) in vibration isolation cellular (100) described in one group and adjacent sets The end face of the elastomer block (112) in cellular (100) is bonded.

9. the phonon crystal vibration isolator according to any one of claim 2-7, which is characterized in that vibration isolation described in every group In cellular (100), including oscillator ring assemblies (120) described in two groups, the elasticity in oscillator ring assemblies (120) described in two groups is even The shearing rigidity for connecing ring (121) is identical, and oscillator ring assemblies (120) described in two groups vary in weight.

10. a kind of floating plate track device for vibration insutation, which is characterized in that including phonon described in any one of claim 1-9 Crystal vibration isolator.

Technical field

The present invention relates to device for vibration insutation fields, and in particular to a kind of phonon crystal vibration isolator and floating plate track vibration isolation are set It is standby.

Background technique

With social development, rail transport becomes one of most popular means of transportation, and solves to shake in rail traffic Dynamic and the destruction of Noise upon Environment and the influence of resident living become the focus that people pay close attention to urban rail transit construction, also become city City's urban rail transit construction can sustainable development one of key.By concentrating on studies for many years, Germany is in terms of vibration damping and vibration isolation It takes the lead in making a breakthrough, they have made extensive work with application aspect in floating plate rail structure research, develop in succession a variety of floating Set plate structure type and mating vibration isolating suspension and construction technology.The vibration isolation principle of floating plate rail structure are as follows: act on rail On power pass to the road bed board being floated on vibration isolator, road bed board can provide enough inertia masses to offset vehicle and generate Dynamic load, only dead load and a small amount of remaining dynamic load can be transmitted in blinding layer by elastic bearing.Road bed board by After power, the power being subject to is passed to the vibration isolator being fixed on blinding layer under effect of inertia after redistributing, then lead to It crosses vibration isolator and is transmitted to blinding layer, be tuned in the process by vibration isolator, filter, absorb energy, reach vibration isolation and damping Purpose.

Phonon crystal is a kind of novel function formed in another solid or liquid medium by elastic solid (Hookean body) periodic arrangement It can structure.When elastic wave is propagated in phonon crystal, by the effect of its internal structure, hindered in certain frequency range (band gap) It only propagates, and can be propagated without loss in other frequency ranges (passband).Locally resonant type phonon crystal is phonon crystal knot One of structure type.It is arranged in epoxy resin-base with silicon rubber package shot according to simple cubic lattice, constitutes office The basic structure of domain resonance type phonon crystal.It, will be harder due to the presence of intermediate very soft clad in locally resonant structure Core ball be connected on matrix, constitute the resonating member with low frequency.When the frequency for the elastic wave propagated in matrix is close to altogether When the resonant frequency of vibration unit, with elastic wave strong coupling will occur for resonant structure unit, prevent it from continuing forward It propagates, so as to cause the generation of band gap.

Summary of the invention

It is existing to alleviate the purpose of the present invention is to provide a kind of phonon crystal vibration isolator and floating plate track device for vibration insutation Vibration isolator band gap present in technology is single, and relatively narrow, and partial elastic wave can not be efficiently absorbed, and caused vibration isolating effect is bad The problem of.

The present invention provides a kind of phonon crystal vibration isolator, comprising: multiple groups vibration isolation cellular；

Multiple groups vibration isolation cellular is arranged along the direction of vibration of vibration source, and two adjacent groups vibration isolation cellular elastic connection；

Vibration isolation cellular includes matrix component and at least two groups oscillator ring assemblies, and oscillator ring assemblies are sheathed in matrix component, And oscillator ring assemblies can be vibrated relative to matrix component, the eigentone of every group of oscillator ring assemblies is all different.

When the frequency for the elastic wave that vibration source vibration generates is in the bandgap range of phonon crystal vibration isolator, elastic wave and vibration The reversed resonance coupling of subring component, setting at least two groups intrinsic frequency different oscillator ring assemblies and matrix on one group of vibration isolation cellular Component connection so that the phonon crystal vibration isolator is corresponding the band gap of at least two groups occurs, therefore expands phonon crystal vibration isolator Absorption elastic wave frequency range, improve vibration isolating effect.

Further, oscillator ring assemblies include elastic adapter ring and oscillator ring；

Elastic adapter ring is sheathed on the outside of matrix component, and oscillator ring set is set on the outside of elastic adapter ring.Elastic adapter ring tool There is the elasticity on direction of vibration, predominantly oscillator ring assemblies provide elastic potential energy, guarantee that oscillator ring assemblies can be issued in inertia Raw vibration.Oscillator ring is mainly that oscillator ring assemblies provide quality, reaches control by the adjustment to elastic adapter ring and oscillator ring The effect that oscillator ring assemblies intrinsic frequency changes.

Further, matrix component includes pedestal and elastomer block；Elastomer block and pedestal are arranged and are connected along vibration source direction of vibration It connects, elastic adapter ring is sheathed on the outside of pedestal.Elastomer block and pedestal are attached on direction of vibration, on the one hand constitute local The basic structure of resonance type phonon crystal；On the other hand the overall stiffness of entire phonon crystal vibration isolator is adjusted, in order to direct Replace spring vibration-isolator in the prior art.

Further, pedestal has holding tank, and elastomer block is set in holding tank.The structure has loss of weight effect, another Aspect ensure that elastomer block can connect previous group pedestal and later group pedestal, constitute the basic knot of locally resonant type phonon crystal Structure.

Further, elastic adapter ring uses rubber ring.It is that rubber types are various using rubber ring purpose, elasticity system Several ranges of choice is wider, preferably meets the requirement for adjusting oscillator ring assemblies.

Further, oscillator ring uses steel loop.Steel manufacturing cost is lower, and is capable of providing any quality of needs, with Adjust the intrinsic frequency of oscillator ring assemblies.

Further, the interior ring-side wall cloth glue of rubber ring, and, the interior ring-side wall cloth glue of steel loop Nian Jie with pedestal lateral wall, And it is Nian Jie with rubber ring.Rubber ring and pedestal and steel loop and rubber ring are connected by way of bonding.So that steel loop, rubber What is be bonded between ring and pedestal is even closer, reduces because joint gap is influencing caused by oscillator ring assemblies.

Further, in multiple groups vibration isolation cellular, wherein the end face of the pedestal in one group of vibration isolation cellular and adjacent sets vibration isolation member The end face of elastomer block in born of the same parents is bonded.Bonded structure ensure that patch prevents from bringing because of vibration with closely between each group vibration isolation cellular Vibration isolation cellular between disengaging.

Further, the elastic connection in every group of vibration isolation cellular, including two groups of oscillator ring assemblies, in two groups of oscillator ring assemblies The shearing rigidity of ring is identical, and two groups of oscillator ring assemblies vary in weight.The shearing rigidity of elastic adapter ring and the oscillator ring group The ratio of part quality is directly proportional to the numerical value of the intrinsic frequency of oscillator ring assemblies, two groups of different oscillator ring assemblies of ratio it is intrinsic Frequency is also different.Guarantee the phonon crystal vibration isolator tool band gap different there are two range, to expand its frequency for absorbing elastic wave Rate range.

According to the present invention, a kind of floating plate track device for vibration insutation is provided, including above-mentioned phonon crystal vibration isolator.

Compared with prior art, possessed by phonon crystal vibration isolator and floating plate track device for vibration insutation provided by the invention Technical advantage are as follows:

The present invention provides a kind of phonon crystal vibration isolator, comprising: multiple groups vibration isolation cellular；Vibration of the multiple groups vibration isolation cellular along vibration source Dynamic direction arrangement, and the matrix component elastic connection in two adjacent groups vibration isolation cellular；Vibration isolation cellular includes matrix component and at least Two groups of oscillator ring assemblies, oscillator ring assemblies are sheathed in matrix component, and oscillator ring assemblies can be vibrated relative to matrix component, The eigentone of every group of oscillator ring assemblies is all different.In above structure, direction of vibration of the multiple groups vibration isolation cellular along vibration source Arrangement, and two adjacent groups vibration isolation cellular elastic connection, oscillator ring assemblies are sheathed on collective's component, constitute locally resonant type sound Sub- crystal vibration isolator.Vibration source vibration generates elastic wave, the oscillator ring assemblies of the phonon crystal vibration isolator can in certain frequency The elastic wave reverse phase resonance coupling of (band gap), sponges elastic wave in range, to reach vibration isolation purpose.Because of locally resonant type The action principle of phonon crystal vibration isolator is to rely on oscillator and elastic wave resonance coupling, and only reach the intrinsic frequency of oscillator Plasmon resonance can be caused, so the phonon crystal vibration isolator can absorb the frequency range (band gap) of elastic wave with oscillator ring assemblies Intrinsic frequency changes and changes.Therefore the different oscillator of setting at least two groups intrinsic frequency in the matrix component of single group vibration isolation cellular Ring assemblies can make the phonon crystal vibration isolator have the distinguishing band gap of at least two frequency ranges.To expand the sound The frequency range for the elastic wave that sub- crystal vibration isolator can absorb promotes vibration isolating effect.

Floating plate track device for vibration insutation provided by the invention, including above-mentioned phonon crystal vibration isolator, as a result, floating plate track The advantage of device for vibration insutation includes the advantage of phonon crystal vibration isolator, is repeated no more.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of phonon crystal vibration isolator provided in an embodiment of the present invention；

Fig. 2 is the schematic diagram of the section structure of phonon crystal vibration isolator provided in an embodiment of the present invention；

Fig. 3 is the structural schematic diagram of the vibration isolation cellular of phonon crystal vibration isolator provided in an embodiment of the present invention；

Fig. 4 is the configuration schematic diagram of the vibration isolation cellular of phonon crystal vibration isolator provided in an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of spring mass block models provided in an embodiment of the present invention；

Fig. 6 is mass block provided in an embodiment of the present invention-spring mass block models structural schematic diagram.

Icon: 100- vibration isolation cellular；110- matrix component；111- pedestal；112- elastomer block；120- oscillator ring group Part；121- elastic adapter ring；122- oscillator ring；The first mass block of 200-；The second mass block of 300-.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ", " third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

The present invention is described in further detail below by specific embodiment and in conjunction with attached drawing.

Specific structure is as shown in figs 1 to 6.

A kind of phonon crystal vibration isolator provided in this embodiment, according to Fig. 1-Fig. 6, comprising: multiple groups vibration isolation cellular 100；

Multiple groups vibration isolation cellular 100 is arranged along the direction of vibration of vibration source, and 100 elastic connection of two adjacent groups vibration isolation cellular；

Vibration isolation cellular 100 includes matrix component 110 and at least two groups oscillator ring assemblies 120, and oscillator ring assemblies 120 are sheathed on In matrix component 110, and oscillator ring assemblies 120 can be vibrated relative to matrix component 110, and every group of oscillator ring assemblies 120 are consolidated There is vibration frequency to be all different.

In above structure, multiple groups vibration isolation cellular 100 is arranged along the direction of vibration of vibration source, and two adjacent groups vibration isolation cellular 100 Elastic connection, oscillator ring assemblies 120 are sheathed on collective's component, constitute locally resonant type phonon crystal vibration isolator.Vibration source vibration Movable property gives birth to elastic wave, and the oscillator ring assemblies 120 of the phonon crystal vibration isolator can be with the bullet of within the scope of certain frequency (band gap) Property wave reverse phase resonance coupling, sponges elastic wave, to reach vibration isolation purpose.Because locally resonant type phonon crystal vibration isolator Action principle is to rely on oscillator and elastic wave resonance coupling, and the intrinsic frequency for only reaching oscillator can just cause plasmon resonance, So the frequency range (band gap) that the phonon crystal vibration isolator can absorb elastic wave changes with the intrinsic frequency of oscillator ring assemblies 120 And change.Therefore the different oscillator ring assemblies of setting at least two groups intrinsic frequency in the matrix component 110 of single group vibration isolation cellular 100 120, it can make the phonon crystal vibration isolator that there is the distinguishing band gap of at least two frequency ranges.To expand phonon crystalline substance The frequency range for the elastic wave that body vibration isolator can absorb promotes vibration isolating effect.

It should be noted that the principle of the elastic wave in the absorption bandgap range of locally resonant type phonon crystal, effect with And the specific structure of locally resonant type phonon crystal can refer to the prior art.

In addition, single group vibration isolation cellular 100 is reduced to for the vivider vibration isolation principle for illustrating the phonon crystal vibration isolator Wire spring-quality block models.As shown in figure 5, according to the principle of locally resonant type phonon crystal, under the action of elastic wave, when Antiphase resonance occurs under intrinsic frequency with elastic wave for oscillator ring assemblies 120, and matrix component 110 hardly happens vibration When, total realizes dynamic equilibrium under such vibration mode, and the initial frequency of band gap is the vibration of oscillator ring assemblies 120 at this time Dynamic frequency.Wherein, the quality of oscillator ring assemblies 120 is equivalent to the quality (m of the first mass block 200_x), oscillator ring assemblies 120 Shear stiffness is equivalent to the coefficient of elasticity (k) of spring, resonant frequency, that is, band gap initial frequency of oscillator ring assemblies 120, quite In the free simple harmonic motion frequency (f of spring mass block models₁), according to the first mass block 200 in spring mass block models Free simple harmonic motion frequency formulaIt is found that the shear stiffness (k) of oscillator ring assemblies 120 and oscillator ring assemblies 120 quality (m_x) ratio it is directly proportional to the initial frequency of phonon crystal vibration isolator band gap, by locally resonant type phonon crystal Principle it is found that the initial frequency of the phonon crystal vibration isolator band gap is equal with the inherent frequency numerical value of oscillator ring assemblies 120, because As long as this guarantees that the intrinsic frequency difference of oscillator ring assemblies 120 can be obtained the starting frequency of different phonon crystal vibration isolator band gap Rate.

As shown in fig. 6, building mass block-spring mass block model, according to the original of locally resonant type phonon crystal Reason, oscillator ring assemblies 120 are sheathed in matrix component 110, under the action of elastic wave, when matrix component 110 is vibrated, and and oscillator When occurring antiphase resonance between ring assemblies 120 and matrix component 110, vibration frequency at this time is phonon crystal vibration isolator band gap Cutoff frequency.The quality of oscillator ring assemblies 120 is equivalent to the quality (m of 200 mass block of the first mass block_x), matrix component 110 Quality be equivalent to the quality (m) of the second mass block 300, the shear stiffness of oscillator ring assemblies 120 is equivalent to the elasticity system of spring Number (k), it is freely reversed to be equivalent to two mass blocks for antiphase resonant frequency between oscillator ring assemblies 120 and matrix component 110 Resonant frequency (the f of resonance₂), according to mass block-spring mass block model, what two mass blocks freely reversely resonated Resonant frequency formulaIt is found that changing the intrinsic frequency of oscillator ring assemblies 120, oscillator ring assemblies 120 Quality (m_x) and/or the shear stiffness (k) of oscillator ring assemblies 120 it is i.e. changeable, and oscillator ring assemblies 120 and matrix component Antiphase resonant frequency also can be with its change, so that the cutoff frequency of phonon crystal vibration isolator band gap can also change between 110.

In conclusion changing the intrinsic frequency of oscillator ring assemblies 120, the starting frequency of phonon crystal vibration isolator band gap can be caused Rate and cutoff frequency variation variation, to cause the change of bandgap range.

In the optional technical solution of the present embodiment, oscillator ring assemblies 120 include elastic adapter ring 121 and oscillator ring 122；

Elastic adapter ring 121 is sheathed on 110 outside of matrix component, and oscillator ring 122 is sheathed on 121 outside of elastic adapter ring. Elastic adapter ring 121 has the elasticity on direction of vibration, and predominantly oscillator ring assemblies 120 provide elastic potential energy, guarantee in elasticity When wave is transmitted to matrix component 110, the elasticity using elastic adapter ring 121 of oscillator ring assemblies 120 can occur under inertia Vibration.Oscillator ring 122 is mainly that oscillator ring assemblies 120 provide quality, passes through the tune to elastic adapter ring 121 and oscillator ring 122 It is whole to achieve the effect that controlling 120 intrinsic frequency of oscillator ring assemblies changes.

In the optional technical solution of the present embodiment, matrix component 110 includes pedestal 111 and elastomer block 112；Elastomer block 112 It arranges and connect along vibration source direction of vibration with pedestal 111, elastic adapter ring 121 is sheathed on 111 outside of pedestal.On the one hand it constitutes The basic structure of locally resonant type phonon crystal；On the other hand, pedestal 111 and elastomer block 112 are cooperatively connected, and provide for road bed board Vertical stiffness and certain lateral stiffness support road bed board, prevent it from collapsing.Meanwhile there is certain bullet using elastomer block 112 Property decrement characteristic, in actual use can directly with phonon crystal vibration isolator provided in this embodiment replace it is existing Spring vibration-isolator, the decrement for simulating spring vibration-isolator are directly replaced, and without making rectification to track, make to replace Journey is more convenient.

Preferably, said base 111 selects aluminum alloy materials, 112 rubber block of elastomer block；Aluminium alloy ensure that pedestal 111 With good structural strength, and aluminium alloy belongs to light metal, has good weight loss effect to the phonon crystal vibration isolator, And aluminium alloy is common metal alloy material, and it is easy to process, it is cheap.Rubber block is capable of providing required for elastomer block 112 Elasticity, and it is easy to process, it is cheap.

In the optional technical solution of the present embodiment, pedestal 111 has holding tank, and elastomer block 112 is set in holding tank.It should Accommodating slot structure has loss of weight effect, reduces the weight of pedestal 111；On the other hand elastomer block 112 is made to be in enclosing for pedestal 111 Under shield, prevent it from generating transversely deforming because of vibration-extrusion.Preferably, 111 bottom of pedestal have bulge-structure, previous group every The bulge-structure of the pedestal 111 of vibration cellular 100 can be with the elastomer block in 111 holding tank of pedestal of later group vibration isolation cellular 100 112 abut, and ensure that elastomer block 112 can connect previous group pedestal 111 and later group pedestal 111, constitute locally resonant type sound The basic structure of sub- crystal.

Preferably, pedestal 111 uses cylindrical-shaped structure, and top opens up holding tank, and cylindrical-shaped structure is easy to process, while side Just oscillator ring assemblies 120 are socketed.Cylindrical-shaped structure Mass Distribution is uniform, when carrying out vibration isolation work, matches with oscillator ring assemblies 120 It closes, transmitting vibration is more uniform, so that phonon crystal vibration isolator is more stable.

In the optional technical solution of the present embodiment, elastic adapter ring 121 uses rubber ring.It is using rubber ring purpose, Rubber types are various, and the range of choice of coefficient of elasticity is wider, preferably meet the requirement for adjusting oscillator ring assemblies 120.And rubber Material is relatively conventional, easy to process.

In the optional technical solution of the present embodiment, oscillator ring 122 uses steel loop.Steel loop can satisfy needed for oscillator ring 122 Quality requirement, steel manufacturing cost is lower, and is capable of providing any quality of needs, is conveniently adjusted oscillator ring assemblies 120 Intrinsic frequency.

In the optional technical solution of the present embodiment, the interior ring-side wall cloth glue of rubber ring, and it is Nian Jie with 111 lateral wall of pedestal, The interior ring-side wall cloth glue of steel loop, and it is Nian Jie with rubber ring.Rubber ring and pedestal 111 and steel loop are connected by way of bonding With rubber ring.So that be bonded between steel loop, rubber ring and pedestal 111 it is even closer, reduce because joint gap is to oscillator group Part influences caused by vibrating.

In the optional technical solution of the present embodiment, in multiple groups vibration isolation cellular 100, wherein the base in one group of vibration isolation cellular 100 The end face of seat 111 is Nian Jie with the end face of elastomer block 112 in adjacent sets vibration isolation cellular 100.Bonded structure ensure that each group vibration isolation Patch is prevented with closely because vibrating the disengaging between bring vibration isolation cellular 100 between cellular 100.

In the optional technical solution of the present embodiment, in every group of vibration isolation cellular 100, including two groups of oscillator ring assemblies 120, two groups The shearing rigidity of elastic adapter ring 121 in oscillator ring assemblies 120 is identical, and two groups of oscillator ring assemblies 120 vary in weight. The shearing rigidity of oscillator ring assemblies 120 is mainly reflected by the shearing rigidity of elastic adapter ring 121.According to the initial frequency of band gapIt is found that in every group of vibration isolation cellular 100, shearing rigidity (k) the i.e. elastic adapter ring of each group oscillator ring assemblies 120 121 shearing rigidity, with 120 mass (m of oscillator ring assemblies_x) ratio it is different, then each group oscillator ring assemblies 120 can be total to The initial frequency coupled of shaking is different.According to the cutoff frequency of band gapIt is found that single vibration isolation cellular In 100, the shearing rigidity difference or oscillator ring group of the shearing rigidity (k) i.e. of each group oscillator ring assemblies 120 elastic adapter ring 121 120 mass (m of part_x) different, then the cutoff frequency for capableing of resonance coupling of each group oscillator ring assemblies 120 is different.Specifically, In In same vibration isolation cellular 100, two groups of oscillator ring assemblies 120 respectively the first oscillator ring assemblies and the second oscillator ring assemblies are defined, And first oscillator ring assemblies include the first elastic adapter ring and the first oscillator ring；Second oscillator ring assemblies include the second elastic connection Ring and the second oscillator ring；Wherein, the shearing rigidity of the first elastic adapter ring is k₁, the shearing rigidity of the second elastic adapter ring is k₂, The quality of first oscillator ring is m₁, the quality of the second oscillator ring is m₂.Preferred embodiment is that the constant mass of matrix component 110 is m,It is greater thanAnd k₁With k₂It is equal, m₁Less than m₂, bring f into₁With f₂In it is found that the initial frequency of the first oscillator ring assemblies with Cutoff frequency is all larger than the second oscillator ring assemblies, and therefore, the band gap of the first oscillator ring assemblies and the second oscillator ring assemblies is superimposed Band gap width is increased, so that the band gap width of phonon crystal vibration isolator increases, improves vibration isolating effect.The preferred embodiment In, the first elastic adapter ring is equal with the shearing rigidity of the second elastic adapter ring, therefore same elastic adapter ring can be used, and only leads to It crosses so that the quality difference of the first oscillator ring and the second oscillator ring can achieve the goal, it is simple and convenient, and without considering elasticity even Connect the variation of the parameters such as quality caused by the change of 121 material of ring.

In addition, following scheme also can be used, the constant mass of matrix component 110 is m,It is greater thanAnd k₁、m₁Point It great Yu not k₂、m₂, bring f into₁With f₂In it is found that the first oscillator ring assemblies initial frequency and cutoff frequency be all larger than the second oscillator Ring assemblies, therefore, the band gap of the first oscillator ring assemblies and the second oscillator ring assemblies is superimposed to increase band gap width, so that The band gap width of phonon crystal vibration isolator increases, and improves vibration isolating effect.

The present embodiment also provides a kind of floating plate track device for vibration insutation, including above-mentioned phonon crystal vibration isolator.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.