CN1985051A - Tuned absorbers for rails - Google Patents
Tuned absorbers for rails Download PDFInfo
- Publication number
- CN1985051A CN1985051A CNA2004800197071A CN200480019707A CN1985051A CN 1985051 A CN1985051 A CN 1985051A CN A2004800197071 A CNA2004800197071 A CN A2004800197071A CN 200480019707 A CN200480019707 A CN 200480019707A CN 1985051 A CN1985051 A CN 1985051A
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- CN
- China
- Prior art keywords
- rail
- shock absorber
- tuning
- elastomeric material
- tuning damper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/60—Rail fastenings making use of clamps or braces supporting the side of the rail
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B9/00—Fastening rails on sleepers, or the like
- E01B9/62—Rail fastenings incorporating resilient supports
Abstract
A tuned absorber (5A, 5B) for attachment to a railway rail (1) comprises a body (6) formed of elastomeric material and of at least one region of a first material, denser than the elastomeric material, located within the elastomeric material and forming an active mass (7m1, 7m2, 7m3). A member (8) of a second material denser than the elastomeric material is also located within the elastomeric material, adjacent to the active mass (7m1, 7m2, 7m3), for coupling to the rail (1) so as to provide a resonant surface against which the active mass (7m1, 7m2, 7m3) can vibrate. Alternatively, or in addition, a tuned absorber (5A, 5B) has a first active mass (7m1) and at least one further active mass (7m2, 7m3) arranged so as to be effectively coupled for vibration in a first frequency range and such that the or each further active mass (7m2, 7m3) is decoupled from the first active mass (7m1) for vibration in a second frequency range higher than the first. Alternatively, or in addition, attachment means for applying a securing force to maintain a tuned absorber (5A, 5B) in position on the rail web (1c) comprise a spring steel strap (40) having an overcentre device which locates on the rail foot (1b) and is operable, when snapped into a closed position, to apply a compressive force to the tuned absorber (5A, 5B).
Description
Technical field
The present invention relates to tuned absorbers for rails and the device that is equipped with this tuning damper.
Background technology
Train is through out-of-date, and rail and braced structures will produce vibration, and the vibration frequency range that wherein has the greatest impact approximately is from 50Hz to 5kHz.Because these vibrations, train, rail and braced structures all can produce noise.Coarse train wheel and the dynamic contact pressure between the rail are the main sources that produces the vibration of noise, therefore an approach controlling rail noise is to reduce the degree of roughness of rail and wheel, for example rail is polished, or adopt as far as possible and can slow down the material of rail roughening, but these measures may be very expensive.What the what is called whole to train " rolling noise " contribution was maximum is exactly rail and train wheel.
With regard to mechanical performance, the dynamic force, track that is transferred to sleeper up and down sedimentation degree and rail roughness change or the like, all may cause the reduction of orbit rigidity, its result causes vibration to transmit fartherly along rail exactly.
Therefore, the change of orbit rigidity will influence total noise from two aspects in opposition to each other: may reduce the noise that sends from rail support structures, but also might increase the noise from rail itself.The degree that any net change produces advantageous effect depends on many-sided factor, and the factor that wherein can cause orbit rigidity to change is rail and the frequency range of the relative formation of rail support structures, different component vibrations and the design of braced structures etc.
If the direct damping action of track component can not produce fairly obvious effect to the improvement of total sound level, thing followed problem is so: because damping action has absorbed energy, the performance of these parts will sharply worsen.
In order to reduce the noise of rail, over past ten years, tuning damper has had very great development.As EP-B-0628660 and WO99/15732 are disclosed, tuning damper comprises the housing that an elastomeric material constitutes, surface attached to rail, the inside comprises one or more effective mass pieces of being made by dense material, frequency tuning is arrived the resonant frequency within the rail vibration frequency range.
Shown in Figure 1 as accompanying drawing, as the demonstration of WO99/15732, tuning damper 2A (2B) comprises a plurality of layers that replace, and is made up of with nested dense material effective mass piece 4 elastomeric material 3 respectively.
Tuning damper 2A (2B) is positioned on the flange of rail 1b of rail 1, thereby is able to contact with web of the rail 1c.
Use this disclosed class tuning damper of WO99/15732, be about to have two resonant frequencies and the relative higher damping vibration attenuation factor, in the frequency range of rail noise peak frequency (being about 1kHz) for the relative broad range at center, can obtain the sound attenuation of about 6dB, but the making of shock absorber of the prior art need before being taped against on the track, rail adhere to pantostrat on the rail.Other known designs for example utilizes thread systems or screw that shock absorber is fixed on the flange of rail, also be very difficult with it attached on the rail that has existed.
Therefore be necessary to propose a kind of improved method, or a kind of improved device is fixed on shock absorber on the rail.
Summary of the invention
One aspect of the present invention is, proposed a kind of tuning damper to be fixed on method on the web of the rail, and this method may further comprise the steps: in the position of choosing in advance at least two stud bolts are welded on the web of the rail with the fastener welding; Tuning damper is placed into the contact site of the web of the rail, allows the stud bolt correspondence put in the through hole of having accomplished fluently on the shock absorber; With releasable securing member that each stud bolt is fastening so that shock absorber is fixed on the web of the rail.Preferably, stud bolt is screwed, described releasable fasteningly be made up of a nut.
Fastener welding (Pinbrazing) (for example, using the equipment that is provided by Sweden Safetrack Baavhammar AB) is a kind of very fast with effectively with the method for connector brazing (low-temperature welding) to rail.A lot of railroads have all approved of the brazing connection technology to make important being electrically connected become safer, and use this technology a lot of years.
Although the fastener welding is mainly used in electrical cable is connected on the rail, also can be used to the joint pin hook bolt.
Adopt the fastener welding that tuning damper is attached to and have lot of advantages on the rail.Compare with the shock absorber gummed or with fastener and withhold on the rail, it all wants quick and cheap relatively; Since this fastening method is releasable, so shock absorber also can be easy to remove; And since do not need outside fastener, shock absorber just can not stretch and surmount the rail exterior feature, thereby makes it can be used for limited place, space under the width or the flange of rail; Tuning damper even can be designed to be adapted to be mounted within the position of most standard railway rail clip.
This installs another advantage, and the subsystem of little quality means at total assembly quality to be had under the situation of concrete restriction, and more quality can be assigned on the effective mass piece of tuning damper.
Select as another kind, second aspect of the present invention is to have proposed the tuning vibration absorber of a kind of rail, this device comprises tuning damper and the spring secures rail to sleeper that nestles up web of the rail both sides respectively, spring secures rail to sleeper can provide reliable active force motionless with the position of maintenance shock absorber on the web of the rail, the device of all guaranteed fastener reliably working of each tuning vibration absorber.
A kind of relatively suitable assurance fastener reliably working device is, processes a slot at the every face of tuning damper, is used for placing the free end of each fastener.Ideal situation is, except free end, the center line of all other parts of fastener is positioned at same plane as far as possible, its free end then stretches out described plane with opposite direction fully, slot processing can become the part of described tuning damper internal channel member at the terminal surface of described tuning damper.
The present invention can also provide the third selection, and that is exactly the tuning vibration absorber of a kind of rail, and this device comprises near the tuning damper of the web of the rail and a kind of assembly ware.This assembly ware can provide reliable active force to keep the position of shock absorber on the web of the rail motionless, it is characterized in that, described assembly ware comprises an elastic steel strip, its first is positioned on the tuning damper, second portion is fixed on the flange of rail, and the third part that these two parts are coupled together then places under the flange of rail.
Best is, the second portion of steel bar comprises an off-centered device, and it is positioned on the flange of rail and can operates, and when pulling fastening position, can produce a pressure, and act on the tuning damper by first and third part of steel bar.Ideal situation is that tuning damper has slot, is used to locate the first of described steel bar.
The problem of rail noise also has been suggested in patent EP-B-0758418.A kind of underslung railway rail clip device has been proposed in this patent, it comprises a pair of flexible member and a pair of support that side direction pincers pressure is provided for this flexible member that is used for supporting rail head, each flexible member all includes elastomeric material, at least be mounted with an effective mass piece of using the materials processing finer and close to form inside than elastomeric material, like this, described flexible member has just played the effect of tuning damper.
The 4th aspect of the present invention is to have proposed a kind of device that tuning damper is fastened on the web of the rail.Each all comprises a kind of elastic material component described tuning damper, comprises the effective mass piece that at least one material more finer and close than elastomeric material is made in it, and this tuning damper is positioned in each limit of the web of the rail, and makes rail head touch tuning damper.It is characterized in that this device comprises and is provided with a pair of support that side direction pincers pressure can be provided tuning damper, and relies on the effect of described support that rail is suspended on the roadbed.
This fastener has special advantage, and the levitation device of it and rail constitutes an integral body, does not therefore need extra set-up time and assembly method, and it is hidden in addition, is not easy to be damaged or to destroy.
Be that it has proposed a kind of improved tuning damper simultaneously more satisfactorily.
The improve quality intrinsic frequency of piece of elastic body supporting layer is to be directly proportional with the square root of this elastic layer rigidity, and be inversely proportional to the square root of this mass quality, therefore, obtain higher intrinsic frequency, need little mass or the high elastic layer of rigidity, still, since huge mass can absorb more energy, therefore the big quality of interesting use on effect so just requires elastic layer to have higher rigidity.
The rigidity of elastic layer is to be inversely proportional to its thickness, yet thin excessively layer processing is got up and satisfied tolerance and make the easier deterioration of performance more difficult.A solution to the contradiction in this design is all to support with elastomeric material on the both sides of mass, like this, the rigidity of the elastic layer on mass both sides will be to have total same thickness but the twice when on one side having elastic layer only, if like this, two elastic layers will be harder with being connected of rail.
The 5th aspect of the present invention is to have proposed a kind of tuning damper that is assemblied on the rail, this shock absorber comprises a kind of element and at least one zone that is made of a kind of first material finer and close than described elastomeric material of being processed into by elastomeric material, this zone is positioned among the described elastic material component and forms effective mass, here, the element that is made of a kind of second kind of material finer and close than described elastomeric material also is present among the described elastic material component, and be close to described effective mass piece, during use, this element links to each other with rail, make when described effective mass piece vibrates, a resonance face can be provided.
In fact, this element can improve the hardness of system, allows higher-quality effective mass piece to be installed in described side, and allows to use thicker, more durable elastomeric layer.
Best is that when using shock absorber, this element is semi-rigidly attached on the rail.In the case, this element may have at least two perforation and be used for accepting a kind of accessory instrument, when using shock absorber, can make this element attached on the rail by this accessory instrument.
Though this element preferably is made up of one beam, this not necessarily.If the effective mass piece is not elongated, this element only need appear at some the discrete positions near the effective mass piece so, even the effective mass piece has extended, this element also needn't move on whole effective mass block length.For example, although the rigidity that provides is not high, this element can be only on the parallel direction of effective mass piece, in one section very little distance of one side motion of each shock absorber fastening devices (if this element be used for locating this fastening devices), perhaps just make a annulus and get final product around this fastening devices.
This beam preferred shape is that the direction along length has a raceway groove, can keep an acceptable bending like this when alleviating quality, thereby a flat surfaces parallel with the effective mass piece can be provided.No matter which kind of mode of employing, it may be a real piece, also may have a hollow square-section (advantage of this shape is all to provide big plane at its each face), or one flat plate, the main required intrinsic frequency and the shape of mould can reach.In addition preferably, first and second dense materials are made up of commaterial.
WO99/15732 has disclosed a kind of multimass piece structure nested against one another, one of them effective mass piece is the solid components that has been elongated, with surperficial angled placement of other effective mass piece, and the quality on its unit length is more much bigger than other effective mass piece.
The reason that proposes as above to require is that available littler mass obtains higher resonance frequency, and can make the vertical vibration of rail can both pass to these effectively with horizontal vibration to have similar profile and mass nested against one another; Another nested advantage is that in low-frequency range, contiguous mass can be coupled together and form combination effective mass piece.But the weak point of this design is that vibration frequency is high more, and the vibration that the effective mass piece absorbs is few more, and the energy absorption ability of system reduces.
A sixth aspect of the present invention is to have proposed a kind of tuning damper that is assemblied on the rail, this shock absorber comprises the parts that an elastomeric material is processed into, in this elastomeric material, comprise by first effective mass piece of the materials processing one-tenth finer and close and more at least one effective mass piece than this elastomeric material, it is characterized in that, the first effective mass piece and this more one or each effective mass piece are arranged to organize to such an extent that can effectively be coupled in first frequency range of vibration, and behind the mistake coupling, these more one or each effective mass piece are suitable for second the vibration frequency range higher than first band frequency.
Preferably, this shock absorber also comprises parts, its material is finer and close than described elastomeric material, be positioned at described elastomeric material, and be adjacent to one or more effective mass pieces, when shock absorber was in user mode, these parts and rail coupling were to provide this more one or vibratile resonance faces of each effective mass piece.
Because the existence of beam, improved the transmission of vertical vibration and horizontal vibration from rail to the effective mass piece, therefore can remove the requirement that a plurality of effective mass pieces are nested, make the arrangement of effective mass piece have greater flexibility, also make big effective mass piece can adapt to higher frequency.
In the prior art, the effective mass piece is the solid components of high density material.Yet, the 7th aspect of the present invention is, a kind of tuning damper that is assemblied on the rail has been proposed, this shock absorber comprises the parts that an elastomeric material is processed into, in this elastomeric material, comprise a zone that material constituted finer and close at least than described elastomeric material, this zone forms an effective mass piece, it is characterized in that, described effective mass piece is multifarious by having, be processed into by described dense material a plurality of disjunct form.Because these disjunct independent is freely to vibration, but can unite with any other piece, therefore a such system has sizable degree of freedom with respect to the system that adopts the lump piece, thereby also might in wideer frequency band, more effectively absorb vibration, especially the size of these masses more can not obtain above-mentioned effect simultaneously yet, therefore, the described diversity of these pieces is optimum is different dimensionally.
It is desirable to, described multifarious piece by elastomeric material, viscous liquid or air surrounded.
Best is to be made up of round for described.
When adopting viscous liquid as the filler between the spherical pieces, can and slowly retract this reaction force, friction, rotation and inertia back and forth by the accelerated motion between each ball and absorb energy, so not big to the wearing and tearing of ball with respect to adopting solid filler yet.
It is pointed out that above-mentioned first to the 7th aspect of the present invention can adopt separately, also can do any combination.
Description of drawings
Be the accompanying drawing of embodiment that can be for reference below:
Fig. 1 has provided the rail end-view of the tuning damper that has in the prior art;
What Fig. 2 provided is a kind of rail stereogram that has the concrete device for carrying out said of tuning damper of the present invention;
What Fig. 3 provided is the sectional view of Fig. 2 center line III-III correspondence;
Fig. 4 is a kind of modified of tuning damper shown in Figure 3;
Fig. 5 is a principle schematic of tuning damper being regarded as the spring-mass block system, and what wherein Fig. 5 A and Fig. 5 B provided respectively is the system that has and do not have beam;
What Fig. 6 provided is the cross-sectional view that does not adopt the tuning vibration absorber of lump type effective mass piece;
Fig. 7 has provided a kind of schematic diagram that tuning damper is fixed to the method for rail;
What Fig. 8 provided is the tuning damper that is fixed to rail with method shown in Figure 7;
Fig. 9 provides is a kind of selectable mode of safe and reliable tuned absorbers for rails;
Figure 10 provides is the another kind of selectable mode of safe and reliable tuned absorbers for rails;
Figure 11 has provided a kind of mode that tuning damper and existing rail fastening system can be combined.
The specific embodiment
As specific embodiment, Fig. 2 and Fig. 3 have provided a pair of tuning damper 5A, the 5B that is installed on the rail 1, and the rail head of rail 1 is 1a, and the flange of rail is 1b, and the web of the rail 1c that connects the rail head and the flange of rail.Tuning damper 5A, 5B be adjacent each limit that is placed in web of the rail 1c of shape as shown, and on the flange of rail 1b, each tuning damper among 5A, the 5B all comprises elastic body 6, and its shape makes it to be suitable for the space of the web of the rail and flange of rail qualification as shown in the figure.Elastic body 6 comprises three effective mass piece 7m1,7m2,7m3 and beams 8, have a raceway groove 8a towards one side of web of the rail 1c at beam 8, external surface at elastic body 6 is processed with two circular holes 9, they pass elastic body 6 and arrive inner surface, 1c joins with the web of the rail, also processed positioning hole corresponding (not providing among the figure) at the correspondence position of beam 8, as what will introduce in detail in the back, just by these holes, with stud bolt tuning damper 5A, 5B are fastened on the rail, beam 8 is the supporter of fastening means, and itself constitutes the part of shock absorber again.
As shown in Figure 4, if necessary, tuning damper 5A ' can outwards stretch with the whole width across flange of rail 1b, though do not provide among the figure, in fact, unless because some reason rail head 1a need do some cleaning works, tuning damper 5A, 5A ' also can stretch upwards a bit again.
Have the beam 8 of raceway groove, be similar to and link together with rail rigidly, except for providing the assembling point between fastening system that give to select and the tuning damper, in fact it can regard the effective extension of rail surface at the shock absorber heart as, so it is all playing the part of important role in the design of this system and effect.Forward the system shown in Fig. 5 b to from the system shown in Fig. 5 a, for example, in Fig. 5 a, mass 7m2 is only supported in vertical direction very flexibly, so its resonant frequency is quite low.
Yet in Fig. 5 b, because the existence of beam 8, effective mass piece 7m2 is equivalent to have only very thin one deck elastomeric material to support in vertical direction, and this comparatively speaking support is just harder, and therefore, it has very high resonant frequency.
In order to make effective mass piece tuned frequency effectively on vertical and horizontal both direction, the distribution of effective mass piece preferably is optimized through the method based on the finite element pattern analysis.
With limited effective mass, in limited space, as shown in Figure 3, three effective mass pieces are arranged on every limit, can obtain the multiple intrinsic frequency of level and vertical direction.The advantage of this arrangement is: i) in low-frequency range, three effective mass piece 7m1,7m2,7m3 all can be coupled effectively, vibrate on elastomeric layer thick between mass 7m1 and rail.Ii) mass 7m1 is " L " shape, means that the vibration on the vertical and horizontal all can be delivered to the effective mass piece.Iii) at high band, mass 7m2 and 7m3 lose coupling from mass 7m1, vibration this moment be in they itself with 7ml and they itself and beam 8 between than on the elastic layer that approaches.Iv) vertical and horizontal amount of deflection norm also appears at high band.
For instance, in a specific embodiment of the present invention, the effective mass piece may be iron and steel material quality and have following quality: m1=1.43kg, m2=1.27kg, m3=0.78kg, the effective mass on every limit adds up to 3.48kg, if sleeper pitch is 0.6m, the effective mass of rail unit length acquisition is 11.6kg/m so, in this example, again if elastomeric material is a rubber, every limit quality is 0.6kg, and the brace summer on every limit is 0.26kg, and the total quality in the every limit of tuning damper is 4.34kg so, if sleeper pitch is 0.6m, so on the unit length total quality be 14.47kg/m (for the rail quality 24%).
What can believe is that above-mentioned tuning damper will have following intrinsic frequency: 720Hz-Chui Zhi ﹠amp; Level; 947Hz-Chui Zhi ﹠amp; Rotation; The 1272Hz-level; The 1427Hz-vertical deflection; 1627Hz-is vertical; The horizontal amount of deflection of 1681Hz-; The horizontal amount of deflection of 1856Hz-.
As shown in Figure 6, the effective mass piece of tuning damper 5AI1 and 5BI1 can be made up of the diversified material block that is not connected easily, rather than the steel bar piece of rigidity, for example, movable mass piece 17m1, the 17m2 of tuning damper 5AIl and 5BI1 and 17m3 are wrapped up in the container body that a large amount of beads of taking are full of and are formed with viscous liquid, elastomeric material or air, for efficient and compact tuning damper, these beads may be processed by high density material.
As mentioned before, tuning damper 5A, 5B are the modes with stud bolt among Fig. 2, be fastened on the rail 1 by the perforation on tuning damper 5A, the 5B 9, among Fig. 7, each stud bolt 21 links together with web of the rail 1c reliably by the fastener welding manner.The fastener welding process not only fast but also simply, at first, target area and grounding wire place have been determined, subsidiary little sander and the grounding wire of being ready to, the brazing solder of heat melts stud bolt 21 ends that the electric arc that provides with electric torch 20 produces just has been welded to it on rail (the brazing termination process is limited in the metal ring 22 defined zones) several like this seconds.After stud bolt 21 puts in place, hole on tuning damper 5A, the 5B 9 and stud bolt 21 is aligned, again tuning damper 5A, 5B are advanced, make it with the web of the rail near, after tuning damper 5A, 5B put in place, just be fixed on this position reliably.
In the present embodiment, as shown in Figure 8, stud bolt 21A, 21B are screwed, by nut 24A, 24B respectively with tuning damper 5A, 5B secure fixation.When using releasable securing member,, then the convenient dismounting of tuning damper can be installed when needed again as nut bolt.
Therefore, though tuning damper just processed before installing in advance, it needn't resemble and link together with rail in advance the prior art.
If, can use other fastening method because some reason do not think or be not suitable for the mode of above-mentioned fastener welded post hook bolt 21 tuning damper 5A, 5B being fastened on the rail 1.
A kind of selectable mode is the fastener 30 that adopts as shown in Figure 9.
The shape of fastener 30 makes it have part 31a, the 31b of two C fonts, they be by with rail under contacted part 32 outwards stretch and form, each C font of 31a, 31b is partly with end 33a, 33b, is used for being assembled on tuning damper 5A111, the 5B111.Tuning damper 5A111,5B111 all have slot 10 to be used for accepting end 33a, the 33b of fastener 30 separately, and end 33a, 33b are to become 90 degree, opposite direction approximately with C font part 31a, 31b, to be parallel to rail and outwards to stretch.After fastener 30 leaves terminal 33a, 33b, almost be straight on vertical plane, like this, when the fastener level is passed the rail bottom, rotate back to vertical direction then and when drawing back, a preloading is provided just can for each tuning damper, be released and then just end 33a, 33b can be inserted slot 10.Slot 10 can be provided (it is reverse that this raceway groove is compared direction with the raceway groove shown in Fig. 2) by the shoulder of the raceway groove 8a on the beam 8, if beam 8 is not provided, then can be embedded in the elastomeric material, if desired, also can be on the effective mass piece some discrete positions provide certain sinking space as slot.
Another kind of with tuning damper be fixed on reliably on the rail mode as shown in figure 10, in this case, tuning damper 5BIV is supported by an elastic steel strip 40.The first 41 of steel bar 40 alongside tuning damper 5 stretch, and stretch out on the foundry goods 11 that a location division 41a is positioned at an effective mass piece the tuning damper 5BIV from this part, another part 43 of steel bar 40 passes rail 1b bottom and links to each other with off-centered device 42, device 42 is positioned at the flange of rail of rail 1, the opposite of tuning damper 5BIV, can suddenly it be pulled make position, and then providing the pressure towards rail 1 web of the rail 1c to tuning damper 5BIV, device 42 promptly is in closure state shown in the figure.
The such tuning damper that proposes among the application, as proposed among the patent application EP-B-0758418: the entity mass is suspended in the elastomeric material, can be combined into fastener easily, rail is supported on the elasticity wedge element under its crown.In this fastening system, the flange of rail is divided in respect of a slit, when rail bears a heavy burden, can make the rail inclination that becomes, and can considerably reduce the requirement to rigidity like this, provides suitable control to lift-over and gauge simultaneously.If the elastic-restoring force of the transfer ability of load and elasticity wedge element can be kept, just can insert one or more entity masses in this elasticity wedge element, and the shape by adjusting the entity mass and size are to absorb the vibration of required frequency.Device among Figure 11 illustrates this, and here, support 53 provides a load to the elasticity wedge element 50A and the 50B that include elastomer element 51, and elastomer element 51 comprises effective mass 52.
Claims (21)
1. tuning damper (5A who is assemblied on the rail (1), 5B), this shock absorber (5A, 5B) main body that is processed by an elastomeric material (6) and at least one are made up of first kind of zone that material constituted finer and close than described elastomeric material, described zone is positioned at described elastomeric material inside, form effective mass (7m1,7m2,7m3), it is characterized in that, the element (8) that is made of second kind of material finer and close than described elastomeric material also is positioned at described elastomeric material, and with described effective mass piece (7m1,7m2,7m3) contiguous, during use, element (8) and rail (1) coupling can make described effective mass piece (7m1 thereby provide, 7m2,7m3) Zhen Dong resonance face.
2. shock absorber as claimed in claim 1 is characterized in that, when shock absorber (5A, 5B) used, described element (8) combined with rail semi-rigidly.
3. shock absorber as claimed in claim 2 is characterized in that, this element (8) has two perforation at least, when shock absorber (5A, 5B) uses, accepts the accessory instrument by described hole, and element (8) is bound up on the rail (1).
4. the described shock absorber of arbitrary as described above claim is characterized in that described element (8) is made up of one beam.
5. shock absorber as claimed in claim 4 is characterized in that, along described beam (8) raceway groove (8a) is arranged.
6. shock absorber as claimed in claim 4 is characterized in that, described beam (8) has the square-section with hollow.
7. the described shock absorber of arbitrary as described above claim is characterized in that first and second kinds of dense materials are made up of commaterial.
8. tuning damper (5A who is assemblied on the rail (1), 5B), this shock absorber (5A, 5B) main body that processes by an elastomeric material (6) and the first effective mass piece (7m1) and also have a more effective mass piece (7m2 at least, 7m3) form, and effective mass piece (7m1,7m2, material 7m3) is finer and close than described elastomeric material, be positioned within the described elastomeric material, it is characterized in that, through arranging, in the first vibration frequency range, the first effective mass piece (7m1) can be effectively and this more one or each mass (7m2,7m3) coupling, and this more one or each mass (7m2,7m3) behind the first effective mass piece (7m1) mistake coupling, can be in the second frequency range vibration higher than first frequency range.
9. shock absorber as claimed in claim 8, also comprise the element (8) that the material finer and close than described elastomeric material constitutes, it is positioned at described elastomeric material, with one or this more each mass (7m2,7m3) vicinity, when shock absorber (5A, 5B) uses, it and rail (1) are coupled, thus the resonance face that provides one or more each masses (7m2,7m3) to vibrate.
10. the described shock absorber of arbitrary as described above claim is characterized in that, each effective mass piece (17m1,17m2,17m3) is disjunctly had multifarious and forms by what described dense material constituted.
11. shock absorber as claimed in claim 10 is characterized in that, described multifarious different dimensionally.
12., it is characterized in that described diversity piece is surrounded by elastomeric material, viscous liquid or air as claim 10 or 11 described shock absorbers.
13. as claim 10,11 or 12 described shock absorbers, it is characterized in that, form by round for described.
14. tuning vibration absorber of rail, that this device comprises is described as any aforementioned claim, separately in abutting connection with the web of the rail (1c) of rail (1), be distributed in the tuning damper (5A, 5B) on the every limit of the web of the rail (1c), with, can provide a reliable pressure that the spring secures rail to sleeper (30) that shock absorber (5A, 5B) maintains the web of the rail (1c) permanent position is formed, it is characterized in that each tuning damper (5A, 5B) has instrument (10) makes spring secures rail to sleeper (30) realize the above-mentioned function of keeping reliably.
15. tuning vibration absorber as claimed in claim 14 is characterized in that, this reliable tools be included in tuning damper (5A, 5B) separately Surface Machining have slot (10) to be used for accepting fastener (30) free end (33a, 33b) separately.
16. tuning vibration absorber as claimed in claim 15, it is characterized in that, except described free end (33a, 33b), the center line of fastener (30) other parts all is in the same plane fully, free end (33a, 33b) stretches out described plane with abundant opposite direction, and described slot (10) is the terminal surface of processing at described tuning damper (5A, 5B).
17., it is characterized in that described slot (10) is processed to the part of the raceway groove of described tuning damper (5A, 5B) interior element (8) as claim 15 or 16 described tuning vibration absorbers.
18. one kind will be equipped in method on the web of the rail (1c) of rail (1) as the arbitrary described tuning damper of claim 1 to 13 (5A, 5B), this method may further comprise the steps: at least two stud bolts are welded on the web of the rail (1c) with the fastener welding in the position of choosing in advance; (5A, 5B) is contiguous to the web of the rail (1c) with tuning damper, and stud bolt (21) is put in the perforation (9) of processing on tuning damper (5A, 5B) separately; Tighten up for each stud bolt with releasable securing member (24A, 24B), the tuning damper and the web of the rail (1c) are kept in touch.
19. method as claimed in claim 18 is characterized in that, this stud bolt (21) is threaded, and described releasable securing member is made up of nut (24A, 24B).
20. the tuning vibration absorber of rail comprises: abut against the tuning damper (5A, 5B) on rail (1) web of the rail (1c) and provide reliable power to keep shock absorber (5A, 5B) to go up the accessory instrument of permanent position at the web of the rail (1c), described accessory instrument comprises a kind of elastic steel strip (40), its first (41) is positioned on the tuning damper (5A, 5B), second portion (42) is assemblied on the flange of rail (1b) of rail (1), smooth third part (43), first and second parts (41,42) are coupled together, and place under the flange of rail (1b); The characteristics of the described second portion of steel bar (40) (42) are, it comprises that one is positioned at last, off-centered, the exercisable device of the flange of rail (1b), when it is pulled make position, can provide a pressure to tuning damper (5A, 5B) by first and the third part (41,43) of steel bar (40).
21. device as claimed in claim 20 is characterized in that, tuning damper (5A, 5B) has slot (11), is used for locating the described first (41) of steel bar (40).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0316307A GB2403759A (en) | 2003-07-11 | 2003-07-11 | Tuned absorbers for railway rails |
| GB0316307.8 | 2003-07-11 | ||
| PCT/GB2004/002796 WO2005009817A2 (en) | 2003-07-11 | 2004-07-01 | Tuned absorbers for railway rails |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101092208A Division CN101100834A (en) | 2003-07-11 | 2004-07-01 | Tuned absorbers for railway rails |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1985051A true CN1985051A (en) | 2007-06-20 |
| CN1985051B CN1985051B (en) | 2011-08-17 |
Family
ID=27742032
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800197071A Expired - Fee Related CN1985051B (en) | 2003-07-11 | 2004-07-01 | Tuned absorbers for rails |
| CNA2007101092208A Pending CN101100834A (en) | 2003-07-11 | 2004-07-01 | Tuned absorbers for railway rails |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101092208A Pending CN101100834A (en) | 2003-07-11 | 2004-07-01 | Tuned absorbers for railway rails |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP1657362A1 (en) |
| CN (2) | CN1985051B (en) |
| GB (1) | GB2403759A (en) |
| WO (1) | WO2005009817A2 (en) |
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| CN102373656A (en) * | 2011-11-08 | 2012-03-14 | 江阴海达橡塑股份有限公司 | Steel rail dynamic absorber |
| CN102862088A (en) * | 2012-09-14 | 2013-01-09 | 芜湖市恒峰科技有限公司 | Track guard bar for processing engine |
| CN105507087A (en) * | 2016-01-06 | 2016-04-20 | 京投银泰股份有限公司 | Locking device for rail web-lifting steel rail damping fastener |
| CN107938439A (en) * | 2017-12-20 | 2018-04-20 | 中铁二院工程集团有限责任公司 | Band bump leveller damping steel rail |
| CN109853302A (en) * | 2019-01-04 | 2019-06-07 | 同济大学 | A kind of rail damper based on quality enlarged structure |
| CN112703290A (en) * | 2018-09-06 | 2021-04-23 | 汉阳大学校产学协力团 | Shock-absorbing device |
| CN113818290A (en) * | 2021-11-22 | 2021-12-21 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
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| GB0613080D0 (en) * | 2006-07-03 | 2006-08-09 | Corus Uk Ltd | Rail dampers |
| WO2009059512A1 (en) | 2007-11-07 | 2009-05-14 | Wai Lun Ho | Tunable vibration absorbing device |
| CN103335061B (en) * | 2013-07-10 | 2016-01-20 | 青岛科而泰环境控制技术有限公司 | Wheel vibration absorber |
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| DE102019127824A1 (en) * | 2019-10-15 | 2021-04-15 | Stabilus Gmbh | System, method and support element for the active damping of acoustic vibrations of a rail for rail traffic |
| CN110593025B (en) * | 2019-10-22 | 2024-03-26 | 中铁二院工程集团有限责任公司 | Dynamic vibration absorber for wave-grinding steel rail |
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| CN114104916B (en) * | 2020-01-22 | 2023-08-01 | 上海三菱电梯有限公司 | Vibration damping device and elevator device |
| CN112853825B (en) * | 2021-01-13 | 2022-04-26 | 华东交通大学 | Adjustable quasi-periodic damping steel rail |
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-
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- 2004-07-01 WO PCT/GB2004/002796 patent/WO2005009817A2/en active Application Filing
- 2004-07-01 EP EP06001300A patent/EP1657362A1/en not_active Withdrawn
- 2004-07-01 CN CN2004800197071A patent/CN1985051B/en not_active Expired - Fee Related
- 2004-07-01 CN CNA2007101092208A patent/CN101100834A/en active Pending
- 2004-07-01 EP EP04743144A patent/EP1651496A2/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373656A (en) * | 2011-11-08 | 2012-03-14 | 江阴海达橡塑股份有限公司 | Steel rail dynamic absorber |
| CN102862088A (en) * | 2012-09-14 | 2013-01-09 | 芜湖市恒峰科技有限公司 | Track guard bar for processing engine |
| CN105507087A (en) * | 2016-01-06 | 2016-04-20 | 京投银泰股份有限公司 | Locking device for rail web-lifting steel rail damping fastener |
| CN107938439A (en) * | 2017-12-20 | 2018-04-20 | 中铁二院工程集团有限责任公司 | Band bump leveller damping steel rail |
| CN112703290A (en) * | 2018-09-06 | 2021-04-23 | 汉阳大学校产学协力团 | Shock-absorbing device |
| CN112703290B (en) * | 2018-09-06 | 2022-11-15 | 汉阳大学校产学协力团 | Shock-absorbing device |
| CN109853302A (en) * | 2019-01-04 | 2019-06-07 | 同济大学 | A kind of rail damper based on quality enlarged structure |
| CN113818290A (en) * | 2021-11-22 | 2021-12-21 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
| CN113818290B (en) * | 2021-11-22 | 2022-01-28 | 成都中拓科技有限公司 | Continuous support floating rail type fastener system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101100834A (en) | 2008-01-09 |
| EP1651496A2 (en) | 2006-05-03 |
| WO2005009817A3 (en) | 2007-02-01 |
| GB0316307D0 (en) | 2003-08-13 |
| EP1657362A1 (en) | 2006-05-17 |
| WO2005009817A2 (en) | 2005-02-03 |
| GB2403759A (en) | 2005-01-12 |
| CN1985051B (en) | 2011-08-17 |
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