CN106758553A - Plate-type ballastless railway roadbed with backpressure device - Google Patents
Plate-type ballastless railway roadbed with backpressure device Download PDFInfo
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- CN106758553A CN106758553A CN201611252811.6A CN201611252811A CN106758553A CN 106758553 A CN106758553 A CN 106758553A CN 201611252811 A CN201611252811 A CN 201611252811A CN 106758553 A CN106758553 A CN 106758553A
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- plate
- backpressure device
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- track plates
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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
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
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Abstract
Plate-type ballastless railway roadbed the present invention relates to carry backpressure device, belongs to technical field of rail traffic.Easily there is the problems such as stripping, arch camber with packed layer under plate in the track plates for which solving existing non-fragment orbit presence.The present invention includes substrate, and track plates are placed in substrate top, packed layer under plate is provided between track plates and substrate, and position limiting structure is additionally provided between track plates and substrate, and also including backpressure device, the backpressure device includes back-pressure flexible member, connector and anchoring piece；Anchoring piece is fixedly installed in substrate；Back-pressure flexible member is arranged between connector and anchoring piece, or back-pressure flexible member one end is acted on track plates, and the other end is acted on connector, and connector is connected by anchoring piece with substrate.The present invention can be prevented effectively from that track plates are peeling-off with packed layer under plate by plate-type ballastless railway roadbed with backpressure device, and vibration and noise reducing performance is good, long service life, in can be widely applied to various ballastless track of high-speed railway circuits.
Description
Technical field
The invention belongs to technical field of rail traffic, and in particular to one kind can prevent track plates from being shelled with CA mortars adjustment layer
From plate-type ballastless railway roadbed.
Background technology
In recent years, developing rapidly with China Express Railway Line for Passenger Transportation, non-fragment orbit is with its high precision, speed of application
Hurry up, good stability, maintenance load is few, quality is easily controlled, low cost, overall economic efficiency high the advantages of, it is high at home and abroad
Increasingly it is widely applied on fast railway, its laying scope gradually develops from the bridge, the Tunnel Engineering that start
Onto roadbed, and progressively widelyd popularize in inter-city passenger rail, Line for Passenger Transportation and high ferro.At present, using more main
Plate-type ballastless track including CRTSI, CRTSII and CRTSIII three types.The basic structure of these three types is from top to bottom
Including packed layer, substrate under rail, spring secures rail to sleeper, track plates, plate, additionally, being additionally provided with spacing dress between track plates and substrate
Put.Wherein, CRTSIII plate-types non-fragment orbit is with the main distinction and advantage of the former two：(1) layer material is filled under its plate
It is changed to use self-compacting concrete by CA mortars before, such that it is able to simplify construction technology, reduces environmental pollution, reduces engineering
Investment；(2) CRTSIII plate-types non-fragment orbit coordinates the spacing side of base groove using U-shaped muscle, self-compacting concrete under plate
Formula, has completely abolished the spacing thorn in the end of positive stop lug boss and CRTSII templates of CRTSI templates, more succinct safety；(3) track plates
Change original non-shoulder plate to there is shoulder block plate, supporting elastic nonseparated rail fastening advantageously reduces orbit rigidity, improves track bullet
Property.But, found during use, because high-speed railway vehicle road speed is fast, vibration is strong, therefore under plate packed layer no matter
It is from CA mortars or self-compacting concrete, after operation a period of time, due to the reason such as vibrate, expand with heat and contract with cold, rail all occur
Guidance tape is peeled off with packed layer under plate, the situation of arch camber, and track plates are in vacant state after being partially stripped with packed layer under plate,
During follow-up operation, the track plates packed layer under crash panel that can sink repeatedly causes cracking to continue to develop expansion.Therefore, track plates and plate
After peeling-off, the globality of plate-type ballastless track will decline to a great extent lower packed layer, and track structure shakes during operation
Dynamic and radiated noise is stronger, not only influences the comfortableness of vehicle, and track structure service life is also resulted in it is many not
Profit influence, even entail dangers to traffic safety when serious, at present still without good repairing method, can only take speed limit etc. passively to arrange
Apply.
In sum, market can effectively prevent track plates peeling-off with packed layer under plate in the urgent need to offer is a kind of
New-type plate ballastless track bed structure.
The content of the invention
It is an object of the invention to solve the above problems, there is provided a kind of globality more preferably, can be prevented effectively from track plates with
The peeling-off plate-type ballastless railway roadbed with backpressure device of packed layer under plate.
Plate-type ballastless railway roadbed of the present invention with backpressure device is achieved in that, including substrate, track plates are placed in substrate
Top, is provided with packed layer under plate between track plates and substrate, position limiting structure is additionally provided between track plates and substrate, it is characterised in that
Also include backpressure device, the backpressure device includes back-pressure flexible member, connector and anchoring piece；Anchoring piece is fixedly installed on base
On bottom；Back-pressure flexible member is arranged between connector and anchoring piece, or back-pressure flexible member one end is acted on track plates,
The other end is acted on connector, and connector is connected by anchoring piece with substrate.
Elastomer block or macromolecule material that the back-pressure flexible member is made including helical steel springs, disc spring, macromolecular material
The complex spring that material is constituted with metal.The macromolecular material material such as including elastic caoutchouc, elastic polyurethane, elastoplast.
Equal pressing plate can also be included in the backpressure device, back-pressure flexible member is compression spring, and equal pressing plate is placed in back-pressure
The end of flexible member, connector coordinates offer pretightning force with equal pressing plate, and back-pressure flexible member is pressed on track plates.It is preferred that
, the 110% of the precommpression stroke of compression spring deflection downwards maximum more than working condition lower rail guidance tape in backpressure device.This
Outward, the set-up mode of backpressure device can be with varied, its both sides that can be arranged on track plates；Can also be set on track plates
Installation passage is put, correspondence installation passage is fixedly installed anchoring piece in substrate, connector sets through installation passage with fixation in substrate
The anchoring piece assembly connection put is together.In addition, damping element can also be included in backpressure device.The type of the damping element
Can be with varied, it includes hole throttle type damping unit, viscous damping devices, electric eddy-current damping device, magnetorheological damping
The concrete form such as device and viscoelastic damping device.
In the present invention, the concrete form of connector can also be varied, for example, connector is including hook, with mounting
The otic placode in hole, nut, the support with adpting flange, link, the connecting rod for being provided with mounting block and it is provided with internal thread or outer spiral shell
The connecting rod of line.Accordingly, anchoring piece be provided with for the screwed hole with connector assembly connection, stud, hook, with mounting
The otic placode in hole, adpting flange, pre-buried channel flow or link.
Plate-type ballastless railway roadbed of the present invention with backpressure device, by setting up backpressure device in ballast bed system, using anti-
The back-pressure pretightning force that pressure device is provided ensures that track plates remain the state of close contact with packed layer under plate, can effectively keep away
Exempt from peeling-off between packed layer under track plates and plate, both made stripping or will not produce hanging, thus railway roadbed can be effectively improved
The globality and security of system.Further, since in backpressure device set back-pressure flexible member can using caoutchouc elasticity block,
Elastic polyurethane block or rubber-plastic metal complex spring etc. itself have the element of excellent damping performance, and also may be used in backpressure device
To be separately provided damping element, therefore, after setting up the backpressure device of said structure, the present invention can also be effectively increased with back-pressure
The system damping of the plate-type ballastless railway roadbed of device, dynamic impact that can be preferably during cushioning rail car operation, rapidly
Decay vibrational energy, is obviously improved effect of vibration and noise reduction, is conducive to improving the comfortableness and safety during rail vehicle operation
Property, extend the service life of ballast bed system.
It is pointed out that heretofore described substrate is varied, it can be way of concrete foundations, or steel
The Steel Bridge Deck of bridge, for example, by welding hook on Steel Bridge Deck, then can be mounted, it is only necessary to root with back-pressure flexible member
Different according to specific substrate forms, the appropriate anchoring piece of selection is fixedly connected mode with substrate
It is to be particularly noted that due in plate-type ballastless railway roadbed of the present invention with backpressure device being carried by backpressure device
The state of close contact is remained to ensure packed layer under track plates and plate for back-pressure pretightning force, packed layer under plate is independent of
Viscosity is Nian Jie with track plates, therefore, packed layer can be set using non-binding each other with track plates under plate, to facilitate the dimension in later stage
Replacing is repaiied, concrete mode can set barrier film etc. under plate between packed layer and track plates；In addition, under plate packed layer selection
Scope is more extensive, such as packed layer can be made up of high resiliency mortar, elastic damping pad or elastic damping block under plate, and it brings
Advantage be：(1) damping property can be preferably taken into account, system vibration and noise reducing level is improved；(2) the various of selection is conducive to
Reducing the construction costs and reduce difficulty of construction；(3) China's territory in vast, climate change is various, expands selection range and is more beneficial for
Improve the applicability of plate-type ballastless railway roadbed of the present invention with backpressure device；(4) for the maintenance in later stage provides facility.
To sum up institute is brown, and plate-type ballastless railway roadbed of the present invention with backpressure device, simple structure, vibration and noise level are low,
Vibration and noise reducing performance is good, long service life, in can be widely applied to various ballastless track of high-speed railway circuits, with wide
Market application foreground.
Brief description of the drawings
Fig. 1 is one of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 2 is the A-A of Fig. 1 to sectional view.
Fig. 3 is the two of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 4 is the three of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 5 is the four of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 6 is the five of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 7 is the six of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 8 is the seven of the structural representation of plate-type ballastless railway roadbed of the present invention with backpressure device.
Fig. 9 is the B-B direction sectional view of Fig. 8.
In figure：1st, track plates；2nd, substrate；3rd, packed layer under plate；4th, position limiting structure；5th, anchoring piece；6th, connector；7th, back-pressure
Flexible member；8th, track structure；9th, equal pressing plate；10th, damping element；11st, fastener；12nd, boss；13rd, installation passage；14th, office
Portion's groove.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings and instantiation, to this hair
The plate-type ballastless railway roadbed with backpressure device of bright proposition is further described.
Embodiment one：
As shown in Figure 1 and Figure 2, plate-type ballastless railway roadbed of the present invention with backpressure device, including substrate 2, track plates 1 are placed in
The top of substrate 2, is provided with packed layer 3 under plate between track plates 1 and substrate 2, packed layer 3 is specifically made up of CA mortar materials under plate,
Position limiting structure 4 is additionally provided between track plates 1 and substrate 2, position limiting structure 4 is specially the boss 12 with the integrated setting of substrate 2；This
Outward, also including backpressure device, the backpressure device includes back-pressure flexible member 7, connector 6 and anchoring piece 5, specifically, back-pressure
Flexible member 7 is the helical steel springs of tension-type, and connector 6 and anchoring piece 5 are the otic placode with mount hole, wherein anchoring
Part 5 is fixedly installed in substrate 2, and connector 6 is fixedly installed in track plates 1, and the mounting of back-pressure flexible member 7 is arranged on connector
Between 6 and anchoring piece 5.
As depicted in figs. 1 and 2, using when, track structure 8 is fixedly installed on track plates 1.The track structure
8 include the specific element such as rail, fastener system, railway rail pad, smaller due to being associated with inventive point of the invention, herein in order to
Convenient drawing, does not show one by one, illustrates hereby.
Plate-type ballastless railway roadbed of the present invention with backpressure device, by setting up backpressure device in ballast bed system, using anti-
Pressure device provides lasting back-pressure pretightning force between packed layer 3 under track plates 1 and plate, and the back-pressure pretightning force may insure track
Packed layer 3 remains the state of close contact under plate 1 and plate, can be prevented effectively under track plates 1 and plate and be sent out between packed layer 3
It is raw to peel off, both made stripping or will not produce vacantly, thus the globality of ballast bed system can be effectively improved, be conducive to improving track
Comfortableness and security during car operation, extend the service life of ballast bed system.Plate of the present invention with backpressure device
Formula ballastless track bed, lasting back-pressure pretightning force, track plates 1 are provided using backpressure device between packed layer 3 under track plates 1 and plate
It is not easy to crack between packed layer under plate 3, both make to ftracture, track plates 1 and filling under plate in the presence of back-pressure pretightning force
Layer 3 also remains close contact gapless, and in the absence of vacantly being impacted with sinking during driving, crack propagation is slow, vibrates and noise
Will not be significantly raised, it is small on driving influence.
Certainly, based on the know-why described in this example, the concrete form of connector 6 and anchoring piece 5 can also in the present invention
It is varied, for example, in addition to the already mentioned otic placode with mount hole, connector 6 can also be the knot such as hook or link
Structure；Similarly, the structures such as hook or link with the assembly connection of connector 6 can also be provided on anchoring piece 5, phase can be realized
With technique effect, be only described with written form herein, not still further accompanying drawing, all application claims protection domain it
In.In addition, the concrete form of position limiting structure 4 can also be varied in the present invention, except having mentioned set integrated with substrate 2
Outside the boss 12 put, the spacing thorn in end of CRTSII templates is can also be, can also realize good technique effect, it is still further not attached
Figure, also among the protection domain of application claims.
It is to be particularly noted that heretofore described substrate 2 is varied, it can be way of concrete foundations, it is also possible to
It is the Steel Bridge Deck of Steel Bridge, for example, by welding hook on Steel Bridge Deck, then can be mounted with back-pressure flexible member 7, only
Need according to the form of specific substrate 2 difference, the appropriate anchoring piece 5 of selection is fixedly connected mode with substrate 2, can
Realize same technique effect, also among the protection domain of application claims, this feature be equally applicable to it is of the invention its
His embodiment, is described in this together, behind be not repeated.
Plate-type ballastless railway roadbed of the present invention with backpressure device, simple structure, vibration and noise level are low, service life
It is long, in can be widely applied to ballastless track of high-speed railway circuit, with wide market application foreground.
Embodiment two：
The plate-type ballastless railway roadbed with backpressure device as shown in Figure 3, the difference with embodiment one is, the back-pressure of this example
In device, connector 6 is specially the support with adpting flange, and it is welded by adpting flange and channel-section steel, accordingly, anchoring
Part 5 is the adpting flange being fixedly installed on using anchor rib in substrate 2, and connector 6 is connected in anchoring piece 5 by fastener 11
Together；Additionally, back-pressure flexible member described in backpressure device 7 includes the helical steel springs of multiple compression-types, back-pressure flexible member 7
One end is acted on track plates 1, and the other end is acted on connector 6, and connector 6 is connected by anchoring piece 5 with substrate 2, wherein,
To ensure multiple helical steel springs uniform forces, equal pressing plate 9 is also provided with backpressure device, equal pressing plate 9 is placed in back-pressure elasticity unit
The end of part 7, connector 6 coordinates with equal pressing plate 9, and back-pressure flexible member 7 is pressed on track plates 1；In addition, the back-pressure of this example
In device, damping element 10 is set up in parallel with back-pressure flexible member 7 also between equal pressing plate 9, the damping element 10 is specific
It is hole throttle type damping unit.In order to ensure that back-pressure flexible member 7 will not in use occur play, on equal pressing plate 9
Be provided be the positioning of back-pressure flexible member 7 spacing collar (conventional structure, not specifically illustrated in figure), and will press after installing
Plate 9 is welded and fixed together with connector 6.
Compared with embodiment one, the plate-type ballastless railway roadbed with backpressure device, can not only be filled using back-pressure described in this example
Put and lasting back-pressure pretightning force is provided under track plates 1 and plate between packed layer 3, the back-pressure pretightning force may insure track plates 1
With the state that packed layer under plate 3 remains close contact, can be prevented effectively under track plates 1 and plate and occur between packed layer 3
Peel off, both made stripping or will not produce vacantly, thus the globality and security of ballast bed system can be effectively improved.Additionally, by
Damping element 10 is additionally arranged in backpressure device, plate-type ballastless railway roadbed of the present invention with backpressure device can also be effectively increased
System damping, dynamic impact that can be preferably during cushioning rail car operation, vibrational energy of decaying rapidly is obviously improved
Effect of vibration and noise reduction, is conducive to improving the comfortableness and security during rail vehicle operation, extends the use of ballast bed system
Life-span.
Based on the know-why described in this example, the compression spring in back-pressure flexible member 7, except already mentioned spiral steel
Outside spring, metal coil spring, elastic polyurethane block, caoutchouc elasticity block, metal disc spring or the rubber and plastic of other materials are can also be
The compression spring of the other forms such as metal composite spring, can select according to actual needs in application, wherein, rubber-plastic metal is multiple
It can be the complex spring that elastic caoutchouc, elastic polyurethane, elastoplast Polymer material are constituted together with metal to close spring；
Additionally, the damping element 10 included in backpressure device, in addition to already mentioned hole throttle type damping unit, can also be viscous
Various concrete forms such as stagnant damping unit, electric eddy-current damping device, magnetorheological damping device and viscoelastic damping device, as long as energy
System damping is effectively improved, the purpose of quick consumption vibrational energy is realized, can be applied in the middle of the present invention.Above technical side
Case is all based on the simple change of the technology of the present invention principle, is only described with word herein, all in the protection of application claims
Among scope.Described above can equally be well applied to other embodiment of the invention, be described in this together.
It is to be particularly noted that the state of close contact, one are remained with packed layer 3 under plate in order to ensure track plates 1
As for, the precommpression stroke of compression spring should be greater than that working condition lower rail guidance tape 1 is maximum to be become downwards in backpressure device of the present invention
The 110% of shape amount, wherein the track plates 1 maximum deflection, the also deformation of expanding with heat and contract with cold including the plate body of track plates 1 downwards.On
State it is bright can equally be well applied to other embodiment of the invention, be described in this together, all in the protection model of application claims
Among enclosing.
Embodiment three：
The plate-type ballastless railway roadbed with backpressure device as shown in Figure 4, the difference with embodiment two is, track plates
1 is provided with boss 12；Back-pressure flexible member described in backpressure device 7 is made up of the helical steel springs of single compression type, back-pressure
The one end of flexible member 7 is acted on track plates 1, and the other end is acted on connector 6, and connector 6 is by anchoring piece 5 and substrate 2
It is connected；In addition, the elastic damping pad that packed layer 3 is made up of elastane under plate is constituted, packed layer 3 and track plates under plate
Non-binding is set each other between 1.
Compared with embodiment two, the advantage of technical scheme described in this example is, by setting boss 12 on track plates 1,
Backpressure device is arranged at boss 12, the gauge space on the periphery of track structure 8 is not take up, its more compact structure will not be to rail
Road gauge is impacted, and is easy to Maintenance and Repair of the later stage to track；Additionally, in this example, using connector 6 with adpting flange
Support cross spacing is carried out to track plates 1 as stopping means, without still further setting position limiting structure 4, whole ballast bed system
Structure it is simpler, be easy to construction, advantageously reduce construction cost；In addition, due to using elastic damping pad conduct in this example
Packed layer 3 under plate, therefore the damping property of system is outstanding, can significantly reduce vibration noise level during operation.Especially
It is noted that the know-why based on this example can be seen that due in plate-type ballastless railway roadbed of the present invention with backpressure device
It is to provide back-pressure pretightning force by backpressure device to remain the state of close contact with packed layer 3 under plate to ensure track plates 1,
The viscosity for being independent of packed layer 3 under plate is be bonded with track plates 1, therefore, packed layer 3 can be with track plates 1 each other using nothing under plate
Bonding is set, and this structure greatly facilitates maintenance of the later stage to packed layer under plate 3 or track plates 1 and changes；Further, since under plate
Packed layer 3 can be set using non-binding each other with track plates 1, and the selection range of packed layer 3 is also more extensive under plate, for example originally
Packed layer 3 is made up of elastic damping pad under plate in example, and selection range expansion is carried the advantage that：(1) can preferably take into account
Damping property, improves system vibration and noise reducing level；(2) the various of selection advantageously reduces construction cost and reduces difficulty of construction；
(3) China's territory in vast, climate change is various, expands selection range and is more beneficial for improving of the invention board-like with backpressure device
The applicability of ballastless track bed；(4) for the maintenance in later stage provides great convenience.Know-why based on this example, fills under plate
Layer 3 can also use other kinds of elastic damping pad, such as rubber damper etc.；Additionally, as a kind of special case, such as Fig. 5 institutes
Show, packed layer 3 can also be made up of the elastic damping block for locally setting under plate；Packed layer 3 can also use high-elastic under certain plate
Property the other materials such as mortar constitute, good effect can be played, it should be pointed out that when the material using the class of high resiliency mortar one
During material, in order to realize that the non-binding under plate between packed layer 3 and track plates 1 is set, can be in packed layer under plate 3 and track plates 1
Between barrier film etc. is set, be only described with word herein, no longer accompanying drawing one by one, all application claims protection domain it
In.
Example IV：
Plate-type ballastless railway roadbed of the present invention with backpressure device as shown in Figure 6, the difference with embodiment two is, rail
Packed layer 3 is made up of self-compacting concrete material under the plate set between guidance tape 1 and substrate 2；Between track plates 1 and substrate 2 also
Position limiting structure 4 is provided with, position limiting structure 4 is specially the local crowning of the insertion substrate 2 of packed layer 3 under plate；Additionally, being set on track plates 1
There is installation passage 13, correspondence installation passage 13 is fixedly installed anchoring piece 5 in substrate 2, connector 6 passes through installation passage 13 and substrate
The assembly connection of anchoring piece 5 being fixedly installed on 2 is together.Wherein, connector 6 is screw rod, and anchoring piece 5 is provided with to be installed with screw rod
The screwed hole of cooperation；In addition, back-pressure flexible member 7 is caoutchouc elasticity block in backpressure device, caoutchouc elasticity block two ends are additionally provided with
Pressing plate 9.
Compared with embodiment two, in technical scheme described in this example, although without setting damping element in addition in backpressure device
10, but due to being provided simultaneously with good elasticity and damping characteristic as the caoutchouc elasticity block of back-pressure flexible member 7, therefore can also
The effect for improving ballast bed structure system damping is reached, so also there is good vibration and noise reducing performance, and also its structure is simpler
It is single.Certainly, technical scheme described in this example also possesses other advantages of embodiment two, is not repeated herein.It is pointed out that this
Backpressure device is assemblied between track plates 1 and substrate 2 by installation passage 13 in example, and it is not only adapted to new peak iron line construction,
Can equally be well applied to the transformation for having high ferro circuit.Only need to be drilled as installation passage on the track plates of existing high ferro circuit
13, anchoring piece 5 is fixed in substrate 2, then backpressure device is installed, it is very convenient.
Know-why based on this example, the present invention in back-pressure flexible member 7 in addition to the elastomer block that can be made of rubber,
The elastomer block that can also be made of other macromolecular materials, such as elastic polyurethane, elastoplast Polymer material is made
Elastomer block, it is, of course, also possible to the complex spring constituted using above-mentioned macromolecular material and metal；Additionally, connector 6 can be
Screw rod, or leading section are locally provided with externally threaded connecting rod, can also realize identical technique effect, are all based on this hair
The simple change of bright know-why, also among the protection domain of application claims.In addition, the know-why based on this example, even
Between extension bar and anchoring piece 5 in addition to it can be connected with each other by helicitic texture, it is also possible to be connected with each other by hanging structure, example
Such as, coordinated with the anchoring piece 5 for being provided with pre-buried channel flow using the connecting rod for being provided with mounting block, mounting block is hooked on pre-buried channel flow
In, it is also possible to good technique effect is realized, is only given with word state herein, still further accompanying drawing is not illustrated, also at this
Among the protection domain that invention is required.
Embodiment five：
The plate-type ballastless railway roadbed with backpressure device as shown in Figure 7, the difference with example IV is, track plates
1 both sides are provided with boss 12, and backpressure device is arranged at boss 12；In backpressure device, anchoring piece 5 is foundation bolt, and connector 6 is
Connecting rod with female sleeve structure, back-pressure flexible member 7 is in series by multiple disc springs, and its two ends is provided with equal pressing plate
9。
Compared with example IV, in technical scheme described in this example, because backpressure device is arranged at boss 12, it is not take up
The gauge space on the periphery of track structure 8, will not impact to track clearance, be easy to Maintenance and Repair of the later stage to track；Additionally,
Due to being provided with boss 12, its thinner thickness, installation passage 13 needed for installation connecting element 6 is easier to process, once the company in somewhere
There is Joint failure in fitting 6 and anchoring piece 5, it is impossible to repair, it is also possible to redrilling aside as new installation passage 13, so
Fixed foundation bolt, then installation connecting element and the grade of back-pressure flexible member 7 unit are installed in substrate 2 by installation passage 13 again afterwards
Part, completes the assembling of backpressure device, very convenient.
Embodiment six：
As shown in Figure 8 and Figure 9, plate-type ballastless railway roadbed of the present invention with backpressure device exists with the difference of embodiment five
In setting partial groove 14 on track plates 1；Additionally, in backpressure device, back-pressure flexible member 7 is metal rubber composite spring, instead
Compression elasticity element 7 is arranged in partial groove 14, and the bottom of anchoring piece 5 is fixed in substrate 2, and its top is stud, the stud
The installation passage 13 set at correspondence partial groove 14 on through track plates 1, and coordinate back-pressure flexible member 7 with connector 6
It is pressed on track plates 1, the connector 6 is specially a nut.
Compared with embodiment five, the advantage of technical scheme described in this example is that connector 6 is anti-with being assemblied in for anchoring piece 5
The top of compression elasticity element 7 completes, and operates simpler quick；Additionally, being combined bullet as the metal-rubber of back-pressure flexible member 7
Spring not only has preferably elasticity, while also there is good damping characteristic, therefore the system that ballast bed structure can be effectively improved
Damping, dynamic impact that can be preferably during cushioning rail car operation, vibrational energy of decaying rapidly is obviously improved vibration damping
Noise reduction, is conducive to improving the comfortableness and security during rail vehicle operation, extends the service life of ballast bed system.
In sum as can be seen that plate-type ballastless railway roadbed of the present invention with backpressure device, increases by ballast bed system
If backpressure device, the back-pressure pretightning force provided using backpressure device is ensured that track plates 1 are remained with packed layer under plate 3 and closely connect
Tactile state, can be prevented effectively from it is peeling-off between packed layer 3 under track plates 1 and plate, both made stripping and also will not produce it is hanging,
The globality and security of ballast bed system can thus be effectively improved.
Further, since the back-pressure flexible member 7 set in backpressure device can use caoutchouc elasticity block, elastic polyurethane block
Or rubber-metal complex spring etc. itself has the element of excellent damping performance, and resistance can also be separately provided in backpressure device
Buddhist nun's element 10, therefore, after setting up the above-mentioned backpressure device with damping structure, the present invention can also be effectively increased with back-pressure dress
The system damping of the plate-type ballastless railway roadbed put, dynamic impact that can be preferably during cushioning rail car operation declines rapidly
Oscillation damping power amount, is obviously improved effect of vibration and noise reduction, is conducive to improving the comfortableness and security during rail vehicle operation,
Extend the service life of ballast bed system.Further, since backpressure device is additionally arranged, plate-type ballastless road of the present invention with backpressure device
In bed packed layer 3 can be set using non-binding each other with track plates 1 under plate, not only facilitate the maintenance in later stage to change, under plate
The selection range of packed layer 3 also more extensively, substantially increases being applicable for plate-type ballastless railway roadbed of the present invention with backpressure device
Property and practicality.Plate-type ballastless railway roadbed of the present invention with backpressure device, simple structure, vibration and noise level are low, vibration damping drop
Performance of making an uproar is good, long service life, can be widely applied in various ballastless track of high-speed railway circuits, is answered with wide market
Use prospect.
Additionally, embodiments of the invention are primarily to convenient understand know-why of the invention, it is not limited to above-mentioned
The content that embodiment is recorded, the technology contents that above-described embodiment is recorded can also carry out cross-reference, former based on the technology of the present invention
Reason, those skilled in the art can re-start combination or using similar technique to wherein to technical scheme described in above-described embodiment
Some elements are simply replaced, as long as being based on know-why of the invention, all among the protection domain of application claims.
Claims (11)
1. a kind of plate-type ballastless railway roadbed with backpressure device, including substrate (2), track plates (1) are placed in substrate (2) top, rail
Packed layer (3) under plate is provided between guidance tape (1) and substrate (2), position limiting structure is additionally provided between track plates (1) and substrate (2)
(4), it is characterised in that also including backpressure device, the backpressure device includes back-pressure flexible member (7), connector (6) and anchoring
Part (5)；Anchoring piece (5) is fixedly installed in substrate (2)；Back-pressure flexible member (7) is arranged on connector (6) and anchoring piece (5)
Between, or back-pressure flexible member (7) one end acted on track plates (1), the other end is acted on connector (6), connector
(6) it is connected with substrate (2) by anchoring piece (5).
2. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that the back-pressure elasticity unit
The compound bullet that the elastomer block or macromolecular material and metal that part (7) is made including helical steel springs, disc spring, macromolecular material are constituted
Spring.
3. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that the backpressure device is also
Including equal pressing plate (9), back-pressure flexible member (7) is compression spring, and equal pressing plate (9) is placed in the end of back-pressure flexible member (7), even
Fitting (6) coordinates offer pretightning force with equal pressing plate (9), and back-pressure flexible member (7) is pressed on track plates (1).
4. the plate-type ballastless railway roadbed with backpressure device according to claim 3, it is characterised in that compressed in backpressure device
The 110% of the precommpression stroke of spring deflection downwards maximum more than working condition lower rail guidance tape (1).
5. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that track plates (1) are provided with
Installation passage (13), correspondence installation passage (13) is fixedly installed anchoring piece (5) in substrate (2), and connector (6) is through installation passage
(13) together with anchoring piece (5) assembly connection being fixedly installed in substrate (2).
6. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that also wrapped in backpressure device
Include damping element (10).
7. the plate-type ballastless railway roadbed with backpressure device according to claim 6, it is characterised in that the damping element
(10) including hole throttle type damping unit, viscous damping devices, electric eddy-current damping device, magnetorheological damping device and viscoplasticity
Damping unit.
8. according to any described plate-type ballastless railway roadbeds with backpressure device of claim 1-6, it is characterised in that connector (6)
Including hook, the otic placode with mount hole, nut, the support with adpting flange, link, be provided with mounting block connecting rod and
It is provided with internal thread or externally threaded connecting rod.
9. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that anchoring piece (5) is provided with
For the screwed hole with connector (6) assembly connection, stud, hook, the otic placode with mount hole, adpting flange, pre-buried channel flow
Or link.
10. the plate-type ballastless railway roadbed with backpressure device according to claim 1, it is characterised in that packed layer (3) under plate
It is made up of high resiliency mortar, elastic damping pad or elastic damping block.
The 11. plate-type ballastless railway roadbeds with backpressure device according to claim 1, it is characterised in that packed layer (3) under plate
Non-binding is set each other with track plates (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252811.6A CN106758553B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless railway roadbed with backpressure device |
| CN201910221137.2A CN109898370B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
| CN201910221316.6A CN109853301B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611252811.6A CN106758553B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless railway roadbed with backpressure device |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221316.6A Division CN109853301B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
| CN201910221137.2A Division CN109898370B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758553A true CN106758553A (en) | 2017-05-31 |
| CN106758553B CN106758553B (en) | 2019-08-09 |
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ID=58928537
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221316.6A Active CN109853301B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
| CN201910221137.2A Active CN109898370B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
| CN201611252811.6A Active CN106758553B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless railway roadbed with backpressure device |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910221316.6A Active CN109853301B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
| CN201910221137.2A Active CN109898370B (en) | 2016-12-30 | 2016-12-30 | Plate-type ballastless track bed with back pressure device |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN109853301B (en) |
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| CN107829338A (en) * | 2017-11-23 | 2018-03-23 | 中铁第四勘察设计院集团有限公司 | It is a kind of be used to non-fragment orbit is installed withhold anchor bolt and installation method |
| CN108360305A (en) * | 2018-04-27 | 2018-08-03 | 江苏振华轨道交通设备有限公司 | A kind of rail traffic vibration damping installation apparatus and installation method |
| CN113136746A (en) * | 2020-01-17 | 2021-07-20 | 深圳市三奇科技有限公司 | High-damping vibration isolation and noise isolation type floating slab track and vibration isolation method |
| CN113550176A (en) * | 2021-07-07 | 2021-10-26 | 高速铁路建造技术国家工程实验室 | External spacing module pin-connected panel track structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109898370B (en) | 2021-05-07 |
| CN109853301A (en) | 2019-06-07 |
| CN109853301B (en) | 2021-02-23 |
| CN106758553B (en) | 2019-08-09 |
| CN109898370A (en) | 2019-06-18 |
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