CN208266595U - Double-layer vibration damping fastener system - Google Patents
Double-layer vibration damping fastener system Download PDFInfo
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- CN208266595U CN208266595U CN201820435693.0U CN201820435693U CN208266595U CN 208266595 U CN208266595 U CN 208266595U CN 201820435693 U CN201820435693 U CN 201820435693U CN 208266595 U CN208266595 U CN 208266595U
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Abstract
A kind of double-layer vibration damping fastener system is disclosed herein, including elastic cushion, middle spring pad, insulation sleeve, limit buckle, anchor bolt and spring under upper padding plate, lower bolster, rail；Lower bolster is provided with cannular boss, the side of cannular boss is provided with the first fastener, the bottom end of insulation sleeve is equipped with the second fastener, and the top of insulation sleeve is equipped with the first protrusion for locking upper padding plate upper surface, and insulation sleeve is for realizing the connection between upper padding plate and lower bolster；Upper padding plate is provided with spring seat, and spring is mounted on spring seat, and elastic cushion is arranged above upper padding plate under rail, and middle spring pad is arranged below upper padding plate；It limits buckle to be arranged on cannular boss, the top of anchor bolt is connect with limit buckle, and the main body of anchor bolt runs through cannular boss, and the bottom end of anchor bolt is for being fixedly connected with track foundation；Middle spring pad is provided with the first elastomer, and lower bolster and/or upper padding plate are provided with the accommodating chamber for placing the first elastomer.
Description
Technical field
This application involves but be not limited to technical field of rail traffic, especially a kind of double-layer vibration damping fastener system.
Background technique
In recent years, it with the fast development with subway, inter-city passenger rail etc. for the Rail Transit System of representative, effectively alleviates
The nervous situation of urban transportation, and at the same time, the vibration of these mode of transportation brings, noise pollution also give the production of people raw
Work brings very big puzzlement.
Wherein, rail fastening is as the connecting component between rail and sleeper, while playing fixed rail function,
Vibration and noise reducing function is also increasingly valued by people.Being proposed currently on the market a series of has the function of vibration and noise reducing
Rail fastening product.And in numerous Damping fastening products, double-layer vibration damping fastener realizes two layers of elastomer vibration damping to reach
To higher effectiveness in vibration suppression, and realize the dismounting and change of components with can be convenient, therefore widely applied, the city Shen Shou
The favor of field.According to the way of realization of double-layer vibration damping fastener, double-layer vibration damping fastener can be divided into top self-locking Damping fastening again
With lower part self-locking Damping fastening, the former because the part replacement in assembling product and later period can be realized more easily, and
It is able to solve the off-seam problem and pretightning force decline problem of the latter, therefore becomes the main product of double-layer vibration damping fastener.
Double-layer vibration damping fastener currently on the market is buckled generally by two layers of elastomer cooperation double layer of metal backing plate to realize
Part function and vibration-damping function, this structure have in some patents such as CN2554216Y, CN102979013A, CN205839491U
Different ways of realization, Fig. 1 are the structural schematic diagram of patent CN205839491U.The above-mentioned prior art can give full play to two layers
The vibration-damping function of elastomer realizes higher vibration damping amount, while also can be realized the easy to disassemble of product component and replacement.
However, there is also following insufficient for the prior art while solving the above problem:
(1) mounting height is higher compared with other non-Damping fastenings on route.
Since the prior art is to cooperate two layers of elastomer to realize effectiveness in vibration suppression by two layers of iron chair, so from rail rail
Bottom to sleeper mounting surface height generally in 56mm or more；And the non-Damping fastening used on track circuit only includes one layer of iron pad
Plate, mounting height is generally in 50mm or less.The change of mounting height, so that double-layer vibration damping fastener has to pass through drop when in use
The mounting height of low sleeper surface realizes the unification with other fasteners, the disunity of this sleeper surface height to site operation and after
Phase operation maintenance brings unnecessary trouble.In addition, in certain old part of paths for needing damping capacity to upgrade, sleeper surface is high
Degree has determined and can not change；Based on the height of pantograph contact net, the application of double-layer vibration damping fastener receives very big limitation.
(2) fastener lacks double stiffness structure designs.
Damping fastening is to pass through bigger rail Dynamic Subsidence amount, buffering wheel track vibration under the premise of ensuring traffic safety
Dynamic impact, and then realize certain effectiveness in vibration suppression；Therefore, in normal driving, wheel-rail force is smaller, and fastener is rigid at this time
Degree is lower, and the Dynamic Subsidence amount of rail is bigger, and the effectiveness in vibration suppression that can be realized is also higher.And when coping with emergency case, such as
When passing through engineering truck, rail wheeling action is larger, often requires that fastener has higher rigidity at this time, guarantee rail deflection is in can
The level of control.By the design of " low load Low rigidity, top load high rigidity ", it can either guarantee effectiveness in vibration suppression, and can guarantee
Traffic safety under emergency case.Current double-layer vibration damping fastener attempts to realize by the mechanic nonlinearity of elastomeric material
The design of " low load Low rigidity, top load high rigidity ", however effect is not satisfactory, often only realizes low rigid under low load
Degree, and the high rigidity under top load is not carried out.
(3) backing plate is coupled in fastener system can not achieve pre-assembled, make troubles to in-site installation.
In the prior art, double-layer vibration damping fastener system is increased often below lower iron chair using coupling backing plate with reaching
Add the effect of frictional force between fastener and sleeper.When leaving the factory, coupling backing plate is individually delivered independently of fastener body, needs applying
Work scene carries out scene discharge and assembling, brings inconvenience to construction personnel, reduces construction efficiency.
Utility model content
The technical issues of the application solves is to provide a kind of double-layer vibration damping fastener system, can effectively overcome existing vibration damping button
Defect existing for part can be effectively reduced the mounting height of double-layer vibration damping fastener, can effectively avoid because of the excessively high institute of mounting height
Caused construction, maintenance defect.
In order to solve the above technical problems, this application provides a kind of double-layer vibration damping fastener system, including upper padding plate, underlay
Elastic cushion, middle spring pad, insulation sleeve, limit buckle, anchor bolt and spring under plate, rail；During the lower bolster is provided with
Empty boss, the side of the cannular boss are provided with the first fastener, and the bottom end of the insulation sleeve is equipped with the first buckle of matching
Second fastener of part, the top of the insulation sleeve are equipped with the first protrusion for locking upper padding plate upper surface, the insulation
Cutting ferrule is for realizing the connection between the upper padding plate and lower bolster；The upper padding plate is provided with spring seat, the spring installation
On the spring seat, elastic cushion is arranged above the upper padding plate under the rail, and the middle spring pad is arranged on described
Below backing plate；The limit buckle is arranged on the cannular boss, and the top of the anchor bolt is connect with limit buckle, institute
The main body of anchor bolt is stated through the cannular boss, the bottom end of the anchor bolt is for being fixedly connected with track foundation；
The middle spring pad is provided with the first elastomer, and the lower bolster and/or the upper padding plate are provided with for putting
Set the accommodating chamber of first elastomer.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
The lower surface of the middle spring pad is arranged in first elastomer, and the accommodating chamber includes being arranged under described
The first through hole or the first groove in backing plate upper face center region.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
It further include coupling backing plate, the lower section of the lower bolster is arranged in the coupling backing plate, and the coupling backing plate is provided with
The second through-hole corresponding with the first through hole or the second groove, second through-hole or the second groove are for accommodating described the
The end of one elastomer.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
The upper surface of the middle spring pad is arranged in first elastomer, and the accommodating chamber includes being arranged on described
The third groove of backing plate lower surface middle section.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
It further include the second elastomer, second elastomer is integrated connection setting or seperated company with the middle spring pad
Connect setting；Second elastomer is arranged outside the accommodating chamber, and the height of second elastomer is lower than first elasticity
The height of body.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
The middle spring pad constitutes second elastomer around the elastic flange of first elastomer setting, described
Second elastomer is arranged between the upper padding plate lower surface and lower bolster upper surface；
There is gap between second elastomer and the upper padding plate lower surface or lower bolster upper surface.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
The edge of the upper padding plate is located above second elastomer；
When track bears the first predetermined load, the middle section of the upper padding plate is realized with first elastomer cooperation to be subtracted
Vibration operation, has gap between the edge of the upper padding plate and second elastomer；When track bears the second predetermined load, institute
The second predetermined load is stated greater than first predetermined load, the flange of the upper padding plate and second elastomer contact, and is matched
It closes and realizes vibration damping operation.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
The middle spring pad upper surface is provided with the 4th groove, and the middle section of the upper padding plate lower surface is provided with
Two protrusions, second protrusion are set in the 4th groove；
Multiple rubber bumps being independently arranged are equipped in 4th groove.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
To snap connection between the coupling backing plate and the lower bolster, detent slot, institute are provided on the coupling backing plate
It states and is provided with mutually matched positioning protrusion on lower bolster, the positioning protrusion is inserted into the detent slot.
Above-mentioned double-layer vibration damping fastener system, can also have a characteristic that
First elastomer includes groove-shaped vibration-proof structure or stud type vibration-proof structure.
The application above-mentioned technical proposal has the following beneficial effects:
Compared with the prior art, the application passes through the accommodating chamber that is preferably provided with, can be realized fastener in the height direction
Structure optimization can reduce rail rail bottom to the height of fastener mounting surface, that is, reduce the integral installation height of fastener, realization and rail
Unification of the other non-Damping fastenings in diatom road in mounting height, can be improved construction efficiency when track construction, and reduce
The operation maintenance workload in fastener later period, while fastener is also able to satisfy under special occasions for the performance requirement of low clearance.
Other features and advantage will illustrate in the following description, also, partly become from specification
It obtains it is clear that being understood and implementing the utility model embodiment.The purpose of the application and other advantages can by
Specifically noted structure is achieved and obtained in specification, claims and attached drawing.
Detailed description of the invention
Attached drawing is used to provide to further understand technical scheme, and constitutes part of specification, with this
The embodiment of application is used to explain the technical solution of the application together, does not constitute the limitation to technical scheme.
Fig. 1 is the structural schematic diagram of existing double-layer vibration damping fastener system；
Fig. 2 is the general assembly structural schematic diagram of the utility model embodiment one；
Fig. 3 is the lower bolster plate structure schematic diagram in the utility model embodiment one；
Fig. 4 is the surface structure schematic diagram of the upper padding plate in the utility model embodiment one；
Fig. 5 is the insulation sleeve structural schematic diagram in the utility model embodiment one；
Fig. 6 is the lower surface configuration schematic diagram of the middle spring pad in the utility model embodiment one；
Fig. 7 is the surface structure schematic diagram of the middle spring pad in the utility model embodiment one；
Fig. 8 is the coupling plate structural schematic diagram in the utility model embodiment one；
Fig. 9 is the lower surface configuration schematic diagram of the upper padding plate in the utility model embodiment one；
Figure 10 is the lower bolster plate structure schematic diagram in the utility model embodiment two；
Figure 11 is the upper padding plate structural schematic diagram in the utility model embodiment three；
Figure 12 is the middle spring mat structure schematic diagram in the utility model embodiment three；
Figure 13 is the assembling schematic diagram of the upper padding plate and middle spring pad in the utility model embodiment three；
Figure 14 is the second elastomer structure schematic diagram in the utility model embodiment four；
It illustrates:
1- rail, elastic cushion under 2- rail, 3- spring, 4- anchor bolt, 5- limit buckle, 6- insulation sleeve, 7- upper padding plate,
8- lower bolster, 9- couple backing plate, the middle spring pad of 10-；The second fastener of 61-；The protrusion of 71- first, the second protrusion of 72-, 73- the
Three grooves；81- first through hole, 82- positioning protrusion, 83- cannular boss, the first fastener of 84-, the first groove of 85-；91- coupling
Backing plate flange, 92- detent slot；The first elastomer of 101-, the second elastomer of 102-, the 4th groove of 103-, 104- third through-hole.
Specific embodiment
Embodiments herein is described in detail below in conjunction with attached drawing.It should be noted that not conflicting
In the case of, the features in the embodiments and the embodiments of the present application can mutual any combination.
Embodiment one:
As shown in Fig. 2, the utility model embodiment one provides a kind of double-layer vibration damping fastener system, including upper padding plate 7, under
Elastic cushion 2, middle spring pad 10, insulation sleeve 6, limit buckle 5, anchor bolt 4 and spring under backing plate 8, coupling backing plate 9, rail
3。
In conjunction with shown in Fig. 3, Fig. 4, Fig. 5, in the present embodiment, lower bolster 8 is provided with cannular boss 83, the side of cannular boss 83
Face is provided with the first fastener 84, and the bottom end of insulation sleeve 6 is equipped with the second fastener 61 of the first fastener 84 of matching, edge insulator
The top of set 6 is equipped with the first protrusion 71 for locking upper padding plate 7, insulation sleeve 6 for realizing upper padding plate 7 and lower bolster 8 it
Between connection, coupling backing plate 9 is provided with below lower bolster 8.
In concrete operations, above-mentioned first fastener 84 can be the locating groove that cannular boss 83 is arranged in, above-mentioned second
Fastener 61 can be the retention bead that insulation sleeve 6 is arranged in, locating groove and the insulation sleeve 6 of above-mentioned cannular boss 83
Retention bead can constitute buckle connecting structure, and then can be improved the connective stability between insulation sleeve 6 and lower bolster 8；
By the setting of above-mentioned insulation sleeve 6, the pre-assembled operation of upper padding plate 7 and lower bolster 8 can be realized.
In the present embodiment, upper padding plate 7 is provided with spring seat, and spring 3 is mountable on spring seat, is by above-mentioned spring 3
The fixed operation of rail 1 can be achieved；Elastic cushion 2 is arranged above upper padding plate 7 under rail, and middle spring pad 10 is arranged in upper padding plate 7
Lower section；It limits buckle 5 to be arranged on cannular boss 83, the top of anchor bolt 4 is connect with limit buckle 5, the master of anchor bolt 4
Body runs through cannular boss 83, and the bottom end of anchor bolt 4 is for being fixedly connected with track foundation.
In concrete operations, above-mentioned spring 3 include e type spring, the spring of w type spring and other similar structure type, with
It can be realized subject to effective fixed operation of rail 1；Can by the setting of above-mentioned anchor bolt 4, can be realized fastener system with
Operation is connected and fixed between track foundation.
In conjunction with shown in Fig. 6, Fig. 7, in the present embodiment, above-mentioned intermediate elastic cushion 10 is provided with the first elastomer 101, lower bolster
8 are provided with the accommodating chamber for placing the first elastomer 101, and above-mentioned intermediate elastic cushion 10 is additionally provided with matching cannular boss 83
Third through-hole 104；Preferably, the lower surface of middle spring pad 10 is arranged in the first elastomer 101, and accommodating chamber includes being arranged under
The first through hole 81 in 8 upper face center region of backing plate；The area of above-mentioned first through hole 81 is greater than the cross of first elastomer 101
Sectional area, to realize effective receiving operation of the first elastomer 101.
In concrete operations, effective receiving behaviour of the first elastomer 101 by the setting of above-mentioned accommodating chamber, can be can be realized
Make, enables to the first elastomer 101 to be overlapped in height with the realization of lower bolster 8, the knot in fastener height space can be optimized
Structure arrangement, and then can be effectively reduced the mounting height of fastener.
As shown in figure 8, above-mentioned coupling backing plate 9 is provided with second through-hole corresponding with first through hole 81 in the present embodiment
Or second groove, the second through-hole or the second groove are used to accommodate the end of the first elastomer 101.
In concrete operations, 101 end of the first elastomer can be can be realized by the setting of above-mentioned second through-hole or the second groove
Effective receiving in portion can further decrease the mounting height of fastener in height；Above-mentioned coupling backing plate 9 is preferably provided with second
Through-hole, the i.e. end of the first elastomer 101 can be through coupling backing plates 9, and the end face of the first elastomer 101 and track foundation are mutual
Contact.
In conjunction with shown in Fig. 3, Fig. 8, in the present embodiment, preferably snapped connection between above-mentioned coupling backing plate 9 and lower bolster 8,
It is provided with detent slot 92 on coupling backing plate 9, mutually matched positioning protrusion 82 is provided on lower bolster 8, positioning protrusion 82 is inserted into
Snapping connection between can be realized in detent slot 92.
In concrete operations, the second through-hole surrounding of coupling backing plate 9 is provided with flange 91, the side of above-mentioned coupling backing plate flange 91
Above-mentioned detent slot 92 is provided on wall；Correspondingly, being provided with above-mentioned positioning protrusion 82 in the first through hole 81 of lower bolster 8；Assembling
When, the flange of above-mentioned coupling backing plate 9 can be placed in the first through hole 81 of lower bolster 8, and pass through the detent slot 92 of coupling backing plate 9
It links together with the positioning protrusion 82 of lower iron chair, realizes the other component group that will couple backing plate 9 and the fastener when factory
It is fitted together.
In the present embodiment, above-mentioned first elastomer 101 includes groove-shaped vibration-proof structure or stud type vibration-proof structure.
In concrete operations, above-mentioned groove-shaped vibration-proof structure or stud type vibration-proof structure are while providing vibration-damping function, also
The contact area that further middle spring pad 10 and lower section matrix can be increased, can effectively avoid wear phenomenon, can
Effectively improve the structural stability of middle spring pad 10.
In the present embodiment, above-mentioned bilayer fastener vibration insulating system further includes the second elastomer 102, and the second elastomer 102 is in
Between elastic cushion 10 be integrated connection setting；Second elastomer 102 is arranged outside accommodating chamber, and the height of the second elastomer 102 is lower than
The height of first elastomer 101, the flange of upper padding plate 7 are located at 102 top of the second elastomer；Height based on the second elastomer 102
The height less than the first elastomer 101 is spent, the second elastomer 102 can provide higher rigidity for fastener.
In concrete operations, above-mentioned intermediate elastic cushion 10 may make up second around the elastic flange of the first elastomer 101 setting
Elastomer 102, the second elastomer 102 are arranged between 8 upper surface of 7 lower surface of upper padding plate and lower bolster；Second elastomer 102 with
There is gap between 8 upper surface of 7 lower surface of upper padding plate or lower bolster.
When track bears the first predetermined load, above-mentioned first predetermined load can be for compared with side crops industry, the center of upper padding plate 7
Vibration damping operation is realized in region and the cooperation of the first elastomer 101, and provides lower vertical stiffness, realizes effectiveness in vibration suppression；Upper padding plate
Edge and the second elastomer 102 between have gap, i.e., do not contacted between the edge of upper padding plate and the second elastomer 102.
When track bears the second predetermined load, above-mentioned second predetermined load is greater than the first predetermined load, and above-mentioned second is pre-
If load can contact with each other for abnormal top load, the edge of upper padding plate with the second elastomer 102, and provide higher vertical rigid
Degree realizes effectiveness in vibration suppression, the impact of performance of top load high rigidity can be realized.
In conjunction with shown in Fig. 7, Fig. 9, in the present embodiment, the middle section of 7 lower surface of upper padding plate is provided with the second protrusion 72, the
It may be provided with stepped groove around two protrusions 72, above-mentioned intermediate 10 upper surface of elastic cushion is provided with the 4th groove 103, the second protrusion
72 are set in the 4th groove 103；Multiple rubber bumps being independently arranged are equipped in 4th groove 103.
In concrete operations, the middle section of 7 lower surface of upper padding plate is as arranged in the second protrusion 72 that upper padding plate 7 is arranged
Protrusion；The groove of 10 upper surfaces of middle spring pad is as arranged in 4th groove 103 of above-mentioned intermediate elastic cushion 10；Above-mentioned
It may be provided in four grooves 103 and the rubber bumps of vibration-damping function be provided, to provide the synthesis damping property of Damping fastening.
The present embodiment can be by the stepped groove optimization design in above-mentioned intermediate elastic cushion 10 and upper iron plate, so that fastener is slow
When rushing wheel-rail impact, there are two rank rigidity properties, that is, there is low load Low rigidity, top load high rigidity, so that fastener is being born
It is able to maintain fastener safety coefficient with higher when abnormal load, solves the prior art and lacks overload protection in top load
Unfavorable status.
Embodiment two:
The utility model embodiment two provides a kind of double-layer vibration damping fastener system, and main structure is similar with embodiment one,
It also include elastic cushion, middle spring pad, insulation sleeve, limit buckle, anchor bolt under upper padding plate, lower bolster, coupling backing plate, rail
And spring；About the specific setting of main structure, the detailed record in embodiment one is referred to, is intended to illustrate between the two herein
Difference.
In the present embodiment, above-mentioned intermediate elastic cushion is provided with the first elastomer, and lower bolster is provided with for placing the first bullet
The lower surface of middle spring pad is arranged in the accommodating chamber of property body, the first elastomer.
As shown in Figure 10, accommodating chamber includes the first groove 85 that 8 upper face center region of lower bolster is arranged in, and above-mentioned first
The area of groove 85 is greater than the cross-sectional area of first elastomer, to realize effective receiving operation of the first elastomer.
In concrete operations, above-mentioned accommodating chamber is arranged in trough body structure, rather than documented through-hole structure is set in embodiment one
It sets；The setting of above-mentioned first groove 85 also can be realized optimization of the Damping fastening in mounting height, also can be effectively reduced and subtract
The mounting height of vibration fastener.
Embodiment three:
The utility model embodiment three provides a kind of double-layer vibration damping fastener system, and main structure is similar with embodiment one,
It also include elastic cushion, middle spring pad, insulation sleeve, limit buckle, anchor bolt under upper padding plate, lower bolster, coupling backing plate, rail
And spring；About the specific setting of main structure, the detailed record in embodiment one is referred to, is intended to illustrate between the two herein
Difference.
In the present embodiment, above-mentioned intermediate elastic cushion 10 is provided with the first elastomer 101, and upper padding plate 7 is provided with for placing
The accommodating chamber of first elastomer 101.
As shown in figure 11, accommodating chamber includes the third groove 73 that 7 lower surface middle section of upper padding plate is arranged in, above-mentioned third
The area of groove 73 is greater than the cross-sectional area of first elastomer 101, to realize effective receiving behaviour of the first elastomer 101
Make.
As shown in figure 12, the upper surface of middle spring pad 10 is arranged in the first elastomer 101.
As shown in figure 13, the third that the top of the first elastomer 101 of middle spring pad 10 can be placed in upper padding plate 7 is recessed
In slot 73.
In concrete operations, above-mentioned accommodating chamber is arranged in trough body structure, and is arranged in 7 lower surface of upper padding plate；Above-mentioned accommodating chamber
Setting, also can be realized optimization of the Damping fastening in mounting height, also can be effectively reduced the mounting height of Damping fastening.
Example IV:
The utility model embodiment four provides a kind of double-layer vibration damping fastener system, and main structure is similar with embodiment one,
It also include elastic cushion, middle spring pad, insulation sleeve, limit buckle, anchor bolt under upper padding plate, lower bolster, coupling backing plate, rail
And spring；About the specific setting of main structure, the detailed record in embodiment one is referred to, is intended to illustrate between the two herein
Difference.
As shown in figure 14, in the present embodiment, the second elastomer is that seperated connection is arranged with middle spring pad.
In concrete operations, above-mentioned second elastic cushion may be configured as annular construction member, and be seperated connect between middle spring pad
Connect setting；Second elastomer of above-mentioned seperated connection setting, the beneficial features with convenient processing and fabricating；Meanwhile it can be according to reality
Border abrasion condition carries out independent replacement operation, can be effectively reduced later maintenance cost.
In the description of the present application, term " setting ", " connected ", " connection ", " fixation " etc. be shall be understood in a broad sense, example
Such as, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be directly connected, it can also be with
Indirectly connected through an intermediary.For the ordinary skill in the art, above-mentioned art can be understood as the case may be
The concrete meaning of language in this application.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the application
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
Although those skilled in the art should be understood that embodiment disclosed by the utility model embodiment is as above,
The content only the utility model embodiment and the embodiment that uses for ease of understanding, are not intended to limit the utility model
Embodiment.Technical staff in any the utility model embodiment fields, is taken off not departing from the utility model embodiment
Under the premise of the spirit and scope of dew, any modification and variation can be carried out in the form and details of implementation, but this is practical
The scope of patent protection of new embodiment, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of double-layer vibration damping fastener system, including elastic cushion under upper padding plate, lower bolster, rail, middle spring pad, insulation sleeve,
Limit buckle, anchor bolt and spring；The lower bolster is provided with cannular boss, and the side of the cannular boss is provided with first
Fastener, the bottom end of the insulation sleeve are equipped with the second fastener of the first fastener of matching, and the top of the insulation sleeve is set
There is the first protrusion for locking upper padding plate upper surface, the insulation sleeve is for realizing between the upper padding plate and lower bolster
Connection；The upper padding plate is provided with spring seat, and the spring is mounted on the spring seat, and elastic cushion is arranged in institute under the rail
It states above upper padding plate, the middle spring pad is arranged below the upper padding plate；The limit buckle is arranged in the hollow convex
On platform, the top of the anchor bolt is connect with limit buckle, and the main body of the anchor bolt runs through the cannular boss, described
The bottom end of anchor bolt is for being fixedly connected with track foundation；It is characterized in that,
The middle spring pad is provided with the first elastomer, and the lower bolster and/or the upper padding plate are provided with for placing
State the accommodating chamber of the first elastomer.
2. double-layer vibration damping fastener system according to claim 1, which is characterized in that
The lower surface of the middle spring pad is arranged in first elastomer, and the accommodating chamber includes being arranged in the lower bolster
The first through hole in upper face center region or the first groove.
3. double-layer vibration damping fastener system according to claim 2, which is characterized in that
It further include coupling backing plate, the lower section of the lower bolster is arranged in the coupling backing plate, and the coupling backing plate is provided with and institute
Corresponding second through-hole of first through hole or the second groove are stated, second through-hole or the second groove are for accommodating first bullet
The end of property body.
4. double-layer vibration damping fastener system according to claim 1, which is characterized in that
The upper surface of the middle spring pad is arranged in first elastomer, and the accommodating chamber includes being arranged in the upper padding plate
The third groove of lower surface middle section.
5. double-layer vibration damping fastener system according to claim 1 or 2 or 3, which is characterized in that
It further include the second elastomer, second elastomer is integrated connection setting with the middle spring pad or seperated connection is set
It sets；Second elastomer is arranged outside the accommodating chamber, and the height of second elastomer is lower than first elastomer
Highly.
6. double-layer vibration damping fastener system according to claim 5, which is characterized in that
Elastic flange composition second elastomer that the middle spring pad is arranged around first elastomer, described second
Elastomer is arranged between the upper padding plate lower surface and lower bolster upper surface；
There is gap between second elastomer and the upper padding plate lower surface or lower bolster upper surface.
7. double-layer vibration damping fastener system according to claim 6, which is characterized in that
The edge of the upper padding plate is located above second elastomer；
When track bears the first predetermined load, vibration damping behaviour is realized in the middle section of the upper padding plate and first elastomer cooperation
Make, there is gap between the edge of the upper padding plate and second elastomer；When track bears the second predetermined load, described the
Two predetermined loads are greater than first predetermined load, the flange of the upper padding plate and second elastomer contact, and cooperate reality
Existing vibration damping operation.
8. double-layer vibration damping fastener system according to claim 7, which is characterized in that
The middle spring pad upper surface is provided with the 4th groove, and it is convex that the middle section of the upper padding plate lower surface is provided with second
It rises, second protrusion is set in the 4th groove；
Multiple rubber bumps being independently arranged are equipped in 4th groove.
9. double-layer vibration damping fastener system according to claim 3, which is characterized in that
To snap connection between the coupling backing plate and the lower bolster, it is provided with detent slot on the coupling backing plate, under described
Mutually matched positioning protrusion is provided on backing plate, the positioning protrusion is inserted into the detent slot.
10. double-layer vibration damping fastener system according to claim 1 or 2 or 3, which is characterized in that
First elastomer includes groove-shaped vibration-proof structure or stud type vibration-proof structure.
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| CN201820435693.0U CN208266595U (en) | 2018-03-28 | 2018-03-28 | Double-layer vibration damping fastener system |
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| CN201820435693.0U CN208266595U (en) | 2018-03-28 | 2018-03-28 | Double-layer vibration damping fastener system |
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| CN (1) | CN208266595U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158375A (en) * | 2019-06-28 | 2019-08-23 | 上海工程技术大学 | A kind of switching regulator spring Double-layer elastic Damping fastening system |
| CN110863394A (en) * | 2019-11-04 | 2020-03-06 | 洛阳科博思新材料科技有限公司 | Track damping fastener |
| CN112095367A (en) * | 2019-06-17 | 2020-12-18 | 洛阳双瑞橡塑科技有限公司 | Multilayer fastener with shoulder |
| CN112523009A (en) * | 2019-09-17 | 2021-03-19 | 洛阳双瑞橡塑科技有限公司 | Fastener system mounting structure and construction process |
| CN113718565A (en) * | 2021-08-30 | 2021-11-30 | 中铁隆昌铁路器材有限公司 | Semi-separation type double-layer nonlinear vibration attenuation fastener |
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2018
- 2018-03-28 CN CN201820435693.0U patent/CN208266595U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095367A (en) * | 2019-06-17 | 2020-12-18 | 洛阳双瑞橡塑科技有限公司 | Multilayer fastener with shoulder |
| CN110158375A (en) * | 2019-06-28 | 2019-08-23 | 上海工程技术大学 | A kind of switching regulator spring Double-layer elastic Damping fastening system |
| CN110158375B (en) * | 2019-06-28 | 2023-10-31 | 上海工程技术大学 | Switch type spring strip double-layer elastic vibration reduction fastener system |
| CN112523009A (en) * | 2019-09-17 | 2021-03-19 | 洛阳双瑞橡塑科技有限公司 | Fastener system mounting structure and construction process |
| CN110863394A (en) * | 2019-11-04 | 2020-03-06 | 洛阳科博思新材料科技有限公司 | Track damping fastener |
| CN113718565A (en) * | 2021-08-30 | 2021-11-30 | 中铁隆昌铁路器材有限公司 | Semi-separation type double-layer nonlinear vibration attenuation fastener |
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