A kind of elastic chute-type Damping fastening suitable for railcar phase library interior lines
Technical field
The utility model is related to urban track traffic Damping fastening fields, and in particular to one kind is suitable in railcar phase library
The elastic chute-type Damping fastening of line.
Background technology
When metro depot covers progress Estate Development, for the vibration pollution caused by train operation and indoor secondary knot
Structure noise problem, available solution include building itself vibration isolation measure, in orbit using Damping fastening measure and
In orbit using railway roadbed class vibration isolation measure including floating plate and the long sleeper of elasticity etc., etc..
When covering carry out Estate Development having put into the rolling stock section that actually runs, and storehouse interior lines use no vibration isolation capability
Common fastener when, according to building itself vibration isolating method, high expense will be related to.According to railway roadbed class vibration isolation measure,
Not only expense is not low, and is related to track foundation transformation, the normal operation of meeting severe interference rolling stock section.At this moment vibration isolation is gone using fastener
Approach just become optimal selection, it is not only low-cost, is easy to maintenance, and can not influence the daily fortune of rolling stock section
Battalion is lower can to complete Vibration Treatment task by simply changeing original fastener.
When being gone to replace existing common fastener in storehouse with Damping fastening, it is desirable that directly using original sleeper and thereon
Spiral channel nail hole is installed, and rail height will remain the same after installation.This just drastically increases the design of Damping fastening
Difficulty, because the sleeper in vehicle phase library interior lines is all especially small, and the height of the rail flange of rail and sleeper surface therebetween is also special
It is not low.
When the design space of Damping fastening is limited in such a narrow and small physical dimension, it should ensure driving peace
Quan Xing, again with larger vibration isolation capability, design difficulty is sizable.Unlike main track fastener can be big according to needing to do
Do height.Although this be also China's upper cover Estate Development after the several years, Damping fastening is still extremely rarely seen so far in ripe storehouse
The main reason for.To at present by.
The Chinese patent of Publication No. (106930160A) discloses a kind of rail suitable for railcar phase library interior lines and subtracts
Shake fastener, a whole set of fastener system that it is formed based on common double-deck iron chair design concept and twin-feed spiral railway spike mounting means
System clever structure can directly replace original common fastener in storehouse, and with larger vibration isolation capability.The patent also using spring,
The design of track gauge block etc., spring and track gauge block are the important components of conventional fastener, and the effect of spring includes:Rail is fixed
On fastener;Certain elasticity to rail is provided, prevents that hard impact occurs between wheel track;Under larger elastic-strip pressure, lead to
Crossing stiction prevents rail from longitudinally creeping;Prevent rail turnover etc..The effect of track gauge block includes:Electrical insulating property;Adjust rail
Away from;Load transmission etc..However spring and track gauge block application cost are higher, particularly, when spring size and mechanical property are special, belong to
When special spring, cost higher.
Metro depot is Subway Stop storehouse and maintenance station.Train can give rail band in continually startup and brake process
Carry out no small longitudinal frictional force, thus longitudinal loading is an important load composition of fastener in storehouse.For this purpose, the vibration damping button in storehouse
The bearing capacity and anti-fatigue ability of enhancing longitudinal loading are needed in part structure design.In the China of Publication No. (106930160A)
In patent bilayer iron chair design concept, anti-overturning ability of the upper strata iron chair under wheel-rail lateral force effect how is improved always
It is that this design concept needs key problems-solving.Under Lateral Force, the overturning of upper strata backing plate can cause rail to be followed
The one piece of overturning of layer iron chair, and then increase the lateral displacement amount of rail head.The lateral displacement amount of rail head is the index strictly to control,
It is one of main hidden danger of train derailing.It is typically all to be supported by the column nearer apart from track to cover building
, for bearing the column of very big vertical load, give column one lateral impact forces if train derails, column is easy to unstability
And jeopardize the safety of building.Therefore, need to focus on the anti-overturning of upper strata iron chair in Damping fastening structure design in storehouse
Ability.
Utility model content
The utility model solves the deficiencies in the prior art, provides a kind of elastic sliding slot suitable for railcar phase library interior lines
Formula Damping fastening, the Damping fastening is not only compact-sized, and bulk is small, and it is existing can directly to replace metro depot storehouse interior lines
Common fastener, and vibration isolation capability is high, and longitudinal load-bearing ability is strong, and the anti-overturning ability of the floating iron chair in upper strata is high, and manufacture is at low cost.
Technical solution is used by the utility model:A kind of elastic chute-type vibration damping suitable for railcar phase library interior lines
Fastener sets up including rail, sleeper and successively plate lower bolster between rail and sleeper, pedestal iron chair, vibration isolation
Pad, floating iron chair and railway rail pad, two middle side part of pedestal iron chair have boss, floating two middle side part of iron chair
With the sliding slot being adapted with boss, the floating iron chair is sheathed on by its sliding slot on the boss of pedestal iron chair, and institute
State and elastic wear-resisting set be nested between boss and sliding slot, elastic wear-resisting set is fixedly connected with boss, the elastic wear-resisting set and
It is in close contact between sliding slot for nature.
Preferably, the rail is withheld by the buckle that insulate on floating iron chair.
It is further preferred that the boss is rectangular-shaped with sliding slot.
Still more preferably, the sliding slot internal face is rubbing surface, and fillet has been led in its port.
Compared to the prior art, the utility model has the advantage that:
1st, the combination between the rectangular boss of pedestal iron chair, the rectangle sliding slot of floating iron chair and elastic wear-resisting set three
Make to form elastic chute-type matching relationship between pedestal iron chair and floating iron chair, this matching relationship causes train to pass through
When floating iron chair only allow up-down vibration, and length travel, lateral displacement and overturning displacement are all strictly controlled at one very
Small scope, can fully guarantee driving safety and fastener structures security.
2nd, existing spring and track gauge block are substituted using insulating fastener, has greatly saved cost.
3rd, boss and sliding slot are rectangular-shaped that the i.e. sliding slot of the boss of pedestal iron chair and floating iron chair is same therebetween
When have 4 contact surfaces, and coordinate resist turning torque of the wheel-rail lateral force to floating iron chair jointly two-by-two, eliminate train and take off
The security risk of rail.
4th, common double-deck iron chair design concept and twin-feed spiral railway spike mounting means are reasonably used, and are filled
Their own design feature and design advantage have been waved in distribution.
5th, overall construction design is compact, compact, can directly replace the existing compact common fastener in storehouse interior lines.
Description of the drawings
Fig. 1 is the utility model overall structure diagram;
Fig. 2 is the utility model decomposition texture schematic diagram;
Fig. 3 is the utility model pedestal iron chair structure diagram;
Fig. 4 is the floating iron chair structure diagram of the utility model;
Fig. 5 is the floating iron chair of the utility model and pedestal iron chair assembled state decomposition diagram.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of elastic chute-type Damping fastening suitable for railcar phase library interior lines refering to Fig. 1, while refers to Fig. 2, including
Conventional rail 1 and sleeper 2, further include pedestal iron chair 3, plate lower bolster 4, vibration isolator 5, floating iron chair 6, elastic wear-resisting set
7th, railway rail pad 8, insulation buckle 9 and twin-feed spiral railway spike 10, wherein pedestal iron chair 3 are arranged on sleeper 2, pedestal iron chair
3 central parts have cavity 31, and its two middle side part has boss 32;Plate lower bolster 4 is clamped in sleeper 2 and pedestal iron chair 3
Between;Vibration isolator 5 is adapted with the cavity of pedestal iron chair 3, and the vibration isolator 5 is embedded in the cavity 31, and the upper end from this
It is stretched out in cavity 31;I.e. the thickness of vibration isolator 5 is more than the height of the cavity, and floating iron chair 6, two middle side parts have and boss
32 sliding slots 61 being adapted, floating iron chair 6 is sheathed on by its sliding slot 61 on the boss 32 of pedestal iron chair 3, and floating iron
6 bottom of backing plate offsets with 5 upper surface of vibration isolator.Elastic wear-resisting set 7, is nested between boss 32 and sliding slot 61;Pedestal iron chair 1
Boss 32, the sliding slot 61 of floating iron chair 6 and elastic wear-resisting cover the combination between 7 threes, make pedestal iron chair 1 with it is floating
Iron chair 6 forms elastic chute-type matching relationship, and this matching relationship so that floating iron chair only allows when train passes through
Lower vibration, and length travel, lateral displacement and overturning displacement are all strictly controlled at the scope of a very little, can fully ensure row
Vehicle security and fastener structures security, railway rail pad 8 are arranged at 1 bottom of rail, utilize the buckle 9 that insulate, T-bolt 15, spiral shell
Rail 1 and railway rail pad 8 are pressed on floating iron chair by mother 17 and spring 16, this fixed form, compared to existing bullet
Item and track gauge block, the cost greatly saved, and T-bolt 15 are mounted on floating iron chair 6;3 He of pedestal iron chair
Plate lower bolster 4 is fastened on by twin-feed spiral railway spike 10 on sleeper 2, and utilizes stop nut 14 and pre-compressed spring 13 by floating iron
Backing plate 6 is pressed on vibration isolator.
In order to resist turning torque of the wheel-rail lateral force to floating iron chair jointly, the safety for eliminating train derailing is hidden
Suffer from.In the present embodiment, more than 32 sliding slot 61 of boss is preferred rectangular-shaped, i.e. the cunning of the boss of pedestal iron chair and floating iron chair
Slot has 4 contact surfaces simultaneously therebetween, and coordinates resist turning torque of the wheel-rail lateral force to floating iron chair jointly two-by-two,
Eliminate the security risk of train derailing.
In order to further strengthen the realization of elastic chute-type mating connection mode between pedestal iron chair 3 and floating iron chair 6,
With the boss 32 of pedestal iron chair 3, to be fixedly connected, relative displacement, specific implementation side do not occur between each other for elastic wear-resisting set 7
There are many formula, such as 32 fit system of more than 7 boss of slip wear-resistant sleeve can be:Nail hole combination, groove and combination of protrusions mode
Or chemical adhesive mode etc..And elastic wear-resisting set 7 and the sliding slot 61 of floating iron chair 6 between without any connection at
Reason, belongs to and is in close contact under natural conditions, i.e., elastic wear-resisting covers 7 outer walls and the inner wall of sliding slot 61 is in close contact naturally.
Further illustrate the mechanical property of elastic wear-resisting set 7, when train passes through, when floating 6 up-down vibration of iron chair,
It is to belong to sliding friction state between floating iron chair 6 and the elastic wear-resisting set 7 being fixed on pedestal iron chair 3, it requires
Not only coefficient of friction is low for the wear surface of elastic wear-resisting set 7, but also requires wear-resisting;Because rail 1 has transverse load, to prevent from floating
It puts iron chair 6 and laterally hard impact occurs in elastic wear-resisting set 7, it requires that elastic wear-resisting set must have certain elasticity, it is no
It is then easy to bad.Therefore the resilience of high rigidity property need to be possessed by sliding wear-resistant sleeve 7, because requiring to slide wear-resistant sleeve 7 and sliding slot
The coefficient of sliding friction between 61 is small, therefore the slip wear-resistant sleeve 7 contacted with sliding slot 61 will also have very high abrasive resistance.It is sliding
Dynamic wear-resistant sleeve 7 can be made of one or more materials, for example, in the present embodiment, slip wear-resistant sleeve 7 is layer structure, by height
Rigidity elastic layer and the low friction wearing layer composition for being arranged on high rigidity elasticity layer surface.High rigidity elastic layer uses high rigidity bullet
Property material be made, low friction wearing layer is made of the wear-resistant material of low-friction coefficient.
In order to strengthen the convenient of pedestal iron chair 3 and floating 6 mechanical property of iron chair and fixed installation, referring to Fig. 3,
3 edge of pedestal iron chair is provided with structural bead 32 and screw spike mounting hole 33, and wherein structural bead 32 is oppositely arranged,
Screw spike mounting hole 33 is diagonally positioned, and structural bead 32 is so that boss 31 has enough intensity.It is referring to Fig. 4, floating
Iron chair 6 is put except setting sliding slot 61, concave shape erecting bed 62 is equipped on its pair of horns, the insulation buckle 9 is fastened on recessed
It is used to withhold rail 1 in floating iron chair 6 on font erecting bed 62.In the present embodiment, fixing piece for T-bolt 15,
Spring 16 and nut 17, floating iron chair 6 set 15 mounting groove 63 of T-bolt in its 62 bottom of concave shape erecting bed, at it
Another diagonal upper setting insulating bushing mounting groove 65 and twin-feed spiral railway spike mounting hole 64, insulating bushing mounting groove 65 are arranged on double
64 upper end-face edge of head screw spike mounting hole.
In order to further realize that sliding slot 61 is in close contact naturally with elastic wear-resisting set 7,61 internal face of sliding slot is friction
Face, inner wall should polish smooth it is smooth, while for the ease of assembling, fillet has been led in 61 port of sliding slot.
Rail 1 is held on floating iron chair 6 in order to realize, the insulation buckle 9 is with dielectric level plate 91 and certainly
The insulating arthropleura 92 that 91 two sides of dielectric level plate extend downwardly, and 92 outer lower portion of the insulating arthropleura has arc groove 93,
The side of the rail 1 is embedded in the arc groove 93, and arc groove 93, which has reached, is held in rail 1 on floating iron chair 6
Purpose.
In order to further strengthen vibration isolating effect, the vibration isolator 5 is using the Low rigidity material that resilience is good and fatigue durability is good
Material is made so that vibration isolator 5 has Low rigidity elasticity capacity, and good vibration isolation capability, in the present embodiment, vibration isolator 5 are preferred
Thermoplasticity class elastomer or thermosetting property class elastomer, the base plate thickness greatly at least 5mm of thickness ratio pedestal iron chair 3, foreign steamer
Profile shape is consistent with the cavity of pedestal iron chair 3 and undersized.
During assembling, referring to Fig. 2, rail 1 is withheld using the buckle 9 that insulate, due to insulation buckle 9 and its mating
Spring 16 is almost without downward bullet journey, thus railway rail pad 8 should use hard rubber-plastics material, it is otherwise excessively soft can be in vertical load
Under cause rail 1 and floating iron chair 6 that larger relative displacement occurs, and then generate the anti-creep resistance mistake caused by buckle press deficiency
The problems such as low and 1 flip angle of rail is excessive, and floating iron pad 6 is located in the upper surface of vibration isolator 5, using the buckle 9 that insulate,
Rail 1 and railway rail pad 8 are pressed on floating iron chair 6 by T-bolt 15, spring 16 and nut 17, and T-bolt 17 is mounted on
On floating iron chair 6;Pedestal iron chair 3 and plate lower bolster 8 are fastened on by twin-feed spiral railway spike 10 on sleeper 2, and using in advance
Floating iron chair 6 is pressed on vibration isolator 5 by pressure nut 14 and pre-compressed spring 13.It should be noted that it is set on pedestal iron chair 3
Boss 31 be main force part, not only its physical dimension 7 will match with sliding slot 61, elastic wear-resisting set, but also have foot
Enough intensity.It need to meet intensity requirement in the reinforcing rib physical dimension that 3 edge of pedestal iron chair is set.At the same time, boss
31 can bear larger moment of flexure, and to improve the bearing capacity of pedestal iron chair 3, twin-feed spiral railway spike 10 need to be incited somebody to action with enough torque
Pedestal iron chair 3 and plate lower bolster 8 are compacted, and plate lower bolster 8 should use hard rubber-plastics material.If plate underlay plate material is excessively soft,
3 mechanical boundary of pedestal iron chair can become being unfavorable for the state of 2 bearing capacity of pedestal iron chair.Insulate buckle 9 and twin-feed spiral
10 grade of railway spike is just using conventional part and mounting means.
Damping fastening provided by the utility model can provide good anti-vibration performance in the case where fully ensuring that travel safety,
The existing compact common fastener in storehouse interior lines can be directly replaced, solves vibration pollution and indoor secondary knot in upper cover Estate Development
Structure noise problem.
The preferred embodiment of above-described embodiment, simply the utility model is not used for limiting the implementation model of the utility model
It encloses, therefore all equivalent variations done with content described in the utility model claims, should all be included in the utility model right will
Within the scope of asking.