CN207523708U - Dust cover and with its rail vehicle, Rail Transit System - Google Patents
Dust cover and with its rail vehicle, Rail Transit System Download PDFInfo
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- CN207523708U CN207523708U CN201721421381.6U CN201721421381U CN207523708U CN 207523708 U CN207523708 U CN 207523708U CN 201721421381 U CN201721421381 U CN 201721421381U CN 207523708 U CN207523708 U CN 207523708U
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Abstract
Include the utility model discloses a kind of dust cover for rail vehicle with the rail vehicle with it, Rail Transit System, dust cover：Dust cover outer layer, dust cover internal layer and sound absorbing layer, the dust cover internal layer are located at the inside of the dust cover outer layer, and the sound absorbing layer is filled between the dust cover internal layer and the dust cover outer layer.According to the dust cover for rail vehicle of the utility model embodiment, by setting sound absorbing layer and dust cover internal layer in the inside of dust cover outer layer, on the one hand, sound absorbing layer can absorb or be isolated the work noise of bogie generation, advantageously reduce the noise in the compartment of rail vehicle, improve the passenger experience of passenger and the working environment of staff, on the other hand, compared with noise-reducing structure is separately provided on the inside of dust cover in the prior art, have the function of that the dust cover structure of absorbing sound and lowering noise is simple, it is easy to assembly, noise-reducing structure can be effectively prevent troublesome caused by damaging or coming off.
Description
Technical field
The utility model is related to Vehicle Engineering technical fields, and in particular, to a kind of dust cover and with its railcar
, Rail Transit System.
Background technology
In the process of moving, the noise of bogie is larger for rail vehicle, the sound insulation of the dust cover of bogie in the relevant technologies
Decrease of noise functions is poor, and internal car noise overall situation is poor, not only influences experiencing by bus for passenger, but also easily influences staff's
Driver behavior is unfavorable for safe driving.
Utility model content
The utility model is intended at least solve one of technical problem in the prior art.
For this purpose, the utility model proposes a kind of dust cover for rail vehicle, the dust cover has preferable sound insulation
Decrease of noise functions is conducive to be promoted the environment inside car of rail vehicle.
The utility model also proposes a kind of rail vehicle with the above-mentioned dust cover for rail vehicle.
The utility model also proposes a kind of Rail Transit System with above-mentioned rail vehicle.
According to the dust cover for rail vehicle of the utility model first aspect embodiment, including：Dust cover outer layer is prevented
Dust hood internal layer and sound absorbing layer, the dust cover internal layer are located at the inside of the dust cover outer layer, and the sound absorbing layer is filled in described
Between dust cover internal layer and the dust cover outer layer.
According to the dust cover for rail vehicle of the utility model embodiment, by being set in the inside of dust cover outer layer
Sound absorbing layer and dust cover internal layer, on the one hand, sound absorbing layer can absorb or be isolated the work noise of bogie generation, advantageously reduce
Noise in the compartment of rail vehicle improves the passenger experience of passenger and the working environment of staff, on the other hand, with showing
Have and noise-reducing structure is separately provided on the inside of dust cover in technology compares, have the function of that the dust cover structure of absorbing sound and lowering noise is simple, fill
With convenient, trouble caused by noise-reducing structure damage can be effectively prevent or come off.
According to the dust cover for rail vehicle of the utility model one embodiment, the dust cover internal layer is equipped with edge
The thickness direction of the dust cover internal layer runs through the bloop of the dust cover internal layer.Bloop on dust cover internal layer can be into
One step, which promotes sound absorbing layer, reduces the effect of noise, and simple in structure, and production cost is relatively low.
Optionally, the punching rate of the dust cover internal layer is 0.1-0.3.
In some embodiments, the cross-sectional shape of the bloop is circle.
One embodiment according to the present utility model, a diameter of 0.5-4mm of the bloop.
An alternative embodiment according to the present utility model, the bloop is in matrix arrangements in the dust cover internal layer
On.
According to the utility model further embodiment, the distance between adjacent described bloop is 1.5-8mm.
According to the dust cover for rail vehicle of the utility model one embodiment, the sound absorbing layer is formed as being laid on
Acoustical cotton between the dust cover outer layer and the dust cover internal layer.Producting process difficulty is relatively low, advantageously reduces dust cover
Production cost, and erasure effect is preferable.
In some embodiments, the thickness of the sound absorbing layer is 30mm.
According to the dust cover for rail vehicle of the utility model one embodiment, the inner surface of the dust cover internal layer
Reinforcing rib equipped with the inner surface for protruding from the dust cover internal layer.Thus, it is possible to increase the roughness of dust cover internal layer, reduce
Dust cover internal layer is to the reflex of sound wave.
In some embodiments, the reinforcing rib is foam reinforcing rib.
According to the dust cover for rail vehicle of the utility model one embodiment, the dust cover internal layer is aluminium sheet,
The dust cover outer layer is Parts Made of Composite Glass.
According to the rail vehicle of the utility model second aspect embodiment, including：Car body, bogie and according to above-mentioned implementation
The dust cover for rail vehicle described in example, the bogie are mounted on the bottom of the car body, the bottom tool of the car body
There is escape port corresponding with the steering rack position, the dust cover is mounted in the car body and the capping escape port.
According to the Rail Transit System of the utility model third aspect embodiment, including：Track and according to above-described embodiment
The rail vehicle.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description
In become apparent or recognized by the practice of the utility model.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become apparent and be readily appreciated that, wherein：
Fig. 1 is the structure diagram according to the dust cover for rail vehicle of the utility model embodiment；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the partial sectional view of structure shown in Fig. 1；
Fig. 4 is the comparison diagram of the sound absorbing performance of three kinds of plate bodys；
Fig. 5 is the comparison diagram of the sound absorbing performance of three kinds of sound panels；
Fig. 6 is the comparison diagram of the sound insulation value of three kinds of sound panels.
Reference numeral：
100：Dust cover；
10：Dust cover outer layer；20：Dust cover internal layer；21：Bloop；30：Sound absorbing layer.
Specific embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that the utility model
Limitation.
In the description of the present invention, it is to be appreciated that term " longitudinal direction ", " transverse direction ", " thickness ", " on ", " under ",
The orientation or position relationship of the instructions such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify description rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, define " first ", "
One or more this feature can be expressed or be implicitly included to two " feature.In the description of the present invention, unless
It is otherwise noted, " multiple " are meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Below with reference to Fig. 1-Fig. 2 descriptions according to the Rail Transit System of the utility model embodiment.
Rail Transit System according to the present utility model includes：Track (not shown) and rail vehicle (not shown), track
Can be single track can also be double track, rail vehicle corresponds to single-track vehicle with track or double track vehicle, rail vehicle are located at rail
Operation is moved towards on road and along track.
Wherein, included according to the rail vehicle of the utility model embodiment：Car body (not shown), dust cover 100 and steering
Frame (not shown), bogie are mounted on the bottom of car body for controlling the travel direction of rail vehicle, and the bottom of car body, which corresponds to, to be turned
Escape port is equipped with to the position of frame, bogie has deflecting roller, and vehicle operator is by controlling the travel direction control of deflecting roller
Rail vehicle processed turns to, and a part for deflecting roller extend into the inside of car body across escape port, and dust cover 100 is formed as being located at
The shell structure of bogie, dust cover 100 limit deflecting roller accommodating chamber, and deflecting roller passes through the part of escape port to stretch into deflecting roller
In accommodating chamber, dust cover 100 is mounted in car body and covers escape port, prevents traveling wheel from being accidentally injured in car body in rotary course
Passenger or staff.
The dust cover 100 for rail vehicle according to the utility model embodiment is specifically described with reference to the accompanying drawings.
As shown in Figures 1 to 3, according to the dust cover 100 for rail vehicle of the utility model embodiment, including：It is dust-proof
Cover outer layer 10, dust cover internal layer 20 and sound absorbing layer 30, dust cover internal layer 20 are located at the inside of dust cover outer layer 10, dust cover internal layer
20 shape can inside identical with the shape of dust cover outer layer 10 and being connected to dust cover outer layer 10, can by screw or
It is bolted, sound absorbing layer 30 is filled between dust cover internal layer 20 and dust cover outer layer 10, the shape of the inner surface of sound absorbing layer 30
Shape is roughly the same with the outer surface present situation of dust cover internal layer 20, shape and the dust cover outer layer 10 of the outer surface of sound absorbing layer 30
Inner surface shape it is roughly the same, sound absorbing layer 30 is folded between dust cover outer layer 10 and dust cover internal layer 20.
Wherein, sound wave enters sound absorbing layer 30 after passing through dust cover internal layer 20, and sound wave moves in sound absorbing layer 30, sound absorbing layer
30 absorb the energy of noise sound wave, can not only reduce noise, and the sound wave after energy dropoff is difficult to be then passed through outside dust cover
Layer 10, so as to further reduced the noise in car body.
As a result, according to the dust cover 100 for rail vehicle of the utility model embodiment, by dust cover outer layer 10
Inside setting sound absorbing layer 30 and dust cover internal layer 20, on the one hand, sound absorbing layer 30 can absorb or be isolated the work of bogie generation
Make noise, advantageously reduce the noise in the compartment of rail vehicle, improve the passenger experience of passenger and the work of staff
On the other hand environment, compared with noise-reducing structure is separately provided in 100 inside of dust cover in the prior art, has absorbing sound and lowering noise work(
The dust cover 100 of energy is simple in structure, easy to assembly, and noise-reducing structure can be effectively prevent troublesome caused by damaging or coming off.
According to the rail vehicle and Rail Transit System of the utility model embodiment, by using being used for for above-described embodiment
The dust cover 100 of rail vehicle is conducive to be promoted the environment inside car of rail vehicle, improves experiencing by bus for passenger.
Below with reference to Fig. 1-Fig. 3 descriptions according to the one of the dust cover 100 for rail vehicle of the utility model embodiment
A little specific embodiments.
One embodiment according to the present utility model, dust cover internal layer 20 are equipped with the thickness direction along dust cover internal layer 20
Through the bloop of dust cover internal layer 20, multiple bloops can be evenly arranged on dust cover internal layer 20, can be irregular
It is arranged on dust cover internal layer 20, by setting bloop on dust cover internal layer 20, noise sound wave back and forth shakes in bloop
Dynamic consumption energy, can not only reduce noise, moreover it is possible to weaken the energy for the sound wave for entering sound absorbing layer 30 across dust cover internal layer 20,
So as to which into the noise effects for promoting sound absorbing layer 30, and the structure of bloop is simple, and producting process difficulty is being protected than relatively low
Production cost is reduced on the basis of card 100 decrease of noise functions of dust cover.
Optionally, the punching rate of dust cover internal layer 20 is 0.1-0.3, i.e. punching rate of the bloop on dust cover internal layer 20
For 01.-0.3, specifically, all bloops cross-sectional area and disappearing on dust cover internal layer 20 with the setting of dust cover internal layer 20
The ratio of area before sound hole is 01.-0.3.
If the punching rate of dust cover internal layer 20 is excessive, sound wave is without hindrance to pass through dust cover internal layer 20, and dust cover internal layer 20 is right
The processing effect of sound wave can weaken, if the punching rate of dust hood internal layer is too small, can equally influence place of the dust cover internal layer 20 to sound wave
Reason acts on, and the punching rate of dust cover internal layer 20 is controlled within above range, can promote dust cover internal layer to the greatest extent
The processing effect of 20 pairs of sound waves.
In the present embodiment, the cross-sectional shape of bloop is circle, that is to say, that bloop is in 20 institute of dust cover internal layer
Plane in cross sectional shape for circle, the production technology of round bloop is relatively simple, can reduce dust cover internal layer 20
Production cost, and during sound wave shakes in round bloop, energy dissipation is larger, advantageously reduces noise, furthermore,
When the sound wave handled through bloop is using sound absorbing layer 30, absorption of the sound absorbing layer 30 to noise can be promoted, and then can
Further reduce the noise in car body.
In some embodiments, a diameter of 0.5-4mm of bloop, if the diameter of bloop is too small, sound wave passes through noise reduction
The difficulty in hole is larger, and sound wave enters sound absorbing layer 30 directly through dust cover internal layer 20, is unfavorable at the noise reduction of dust cover internal layer 20
Effect is managed, if the diameter of bloop is excessive, when sound wave passes through bloop, bloop is less to the damping of sound wave and energy expenditure,
The noise reduction of dust cover internal layer 20 cannot equally be met.
The bloop of above-mentioned diameter range as a result, can promote energy consumption of the dust cover internal layer 20 to sound wave to the greatest extent
And noise reduction process, and producting process difficulty is relatively low, advantageously reduces production cost.
One embodiment according to the present utility model, multiple bloops are arranged in matrix form on dust cover internal layer 20,
That is multiple bloops being laterally or longitudinally evenly arranged on dust cover internal layer 20 along dust cover internal layer 20, in dust cover
Layer 20 is in a row arranged in column, on the one hand, can be ensured that bloop is evenly arranged on dust cover internal layer 20, be prevented bloop local
Transition is concentrated or local transition dispersive effects dust cover internal layer 20 acts on, and the bloop energy being evenly arranged the processing of noise
On the other hand the treatment effect of enough utmostly low noises for promoting dust cover internal layer 20, is given birth in the bloop of matrix form arrangement
Production. art is simple, suitable for mass mechanized production, and can ensure that 20 Each part intensity of dust cover internal layer is consistent, prevents
Only because bloop arrangement excessively it is intensive lead to dust cover 20 strength reduction of internal layer due to damage.
The distance between one embodiment according to the present utility model, adjacent bloop is 1.5-8mm, prevents bloop office
Portion transition is concentrated or local transition dispersive effects dust cover internal layer 20 acts on the processing of noise, and different model vehicle and
In the process of moving, the noise that bogie generates is also different for the vehicle of different travel speeds, and the distance between adjacent bloop is big
The small dust cover internal layer 20 that influences acts on the processing of sound wave, selects suitable bloop distance according to the characteristic of vehicle as a result, has
Conducive to promoted dust cover 100 Noise Reduction, furthermore, the dust cover internal layer 20 of above structure bloop, can not only prevent because
Bloop transition it is intensive caused by the production cost increases or the strength reduction of dust cover internal layer 20, and producting process difficulty compared with
It is low, moreover it is possible to prevent the reduction of the noise reduction process effect caused by bloop is very few, be conducive to be promoted the sound insulation of dust cover internal layer 20
Effect.
In the present embodiment, sound absorbing layer 30 is formed as the sound-absorbing being laid between dust cover outer layer 10 and dust cover internal layer 20
Cotton, on the one hand, acoustical cotton absorbs noise and the effect of insulating noise is preferable, and the noise that leading truck generates can be effectively prevent to enter
Car body, and acoustical cotton is easy to get, and production cost is relatively low, furthermore, acoustical cotton has preferable plasticity, can be according to dust-proof
The structure and shape of cover internal layer 20 and dust cover outer layer 10 are uniformly laid between dust cover internal layer 20 and dust cover outer layer 10.
In some embodiments, the thickness of sound absorbing layer 30 is 30mm, that is to say, that dust cover internal layer 20 and dust cover outer layer
The thickness of acoustical cotton between 10 be 30mm, the sound absorbing layer 30 of above structure under the premise of 100 absorbing sound and lowering noise of dust cover is met,
With preferable economic benefit, it on the one hand can prevent from influencing the noise reduction of dust cover 100 due to the thickness of sound absorbing layer 30 is too small,
On the other hand, it can prevent from increasing the production cost and occupied space of dust cover 100 because 30 thickness of sound absorbing layer is excessive.
According to the dust cover 100 for rail vehicle of the utility model one embodiment, the interior table of dust cover internal layer 20
Face is equipped with the reinforcing rib for the inner surface for protruding from dust cover internal layer 20.Thus, it is possible to increase the roughness of dust cover internal layer 20, drop
Low dust cover internal layer 20 is to the reflex of sound wave.
In the present embodiment, the inner surface of dust cover internal layer 20 is equipped with the reinforcement for the inner surface for protruding from dust cover internal layer 20
Muscle, that is to say, that the inner surface of dust cover internal layer 20 is provided with the reinforcing rib that bogie protrudes from dust cover internal layer 20, strengthens
Muscle can be evenly arranged in the inner surface of dust cover internal layer 20, irregular can also be arranged in the interior table of dust cover internal layer 20
Face sets reinforcing rib by the inner surface in dust cover internal layer 20, can promote the roughness of 20 inner surface of dust cover internal layer, prevent
The only reflection sound wave when 20 inner surface of dust cover internal layer is excessively smooth, thus, it is possible to increase to enter the sound of bloop and sound absorbing layer 30
Wave amount, and then sound absorbing layer 30 can be promoted, the processing of noise is acted on.
In some embodiments, reinforcing rib is formed as being located at the foam reinforcing rib of 20 inner surface of dust cover internal layer, due to anti-
The active force that dust hood internal layer 20 is born is smaller, and reinforcing rib is without carrying, and smaller to intensity requirement, foam reinforcing rib can be promoted anti-
The rough degree of 20 inner surface of dust hood internal layer, not only simple production process easily make, dust cover internal layer can be greatly lowered
20 production cost, and influence of the foam reinforcing rib to sound wave is smaller, and sound wave can enter bloop with inhaling across reinforcing rib
Sound-absorbing layer 30.
Inventor has chosen three kinds of plate bodys and carries out analog simulation to it respectively, obtains the sound absorbing performance of each plate body, knot
Fruit is as shown in Figure 4.Wherein, the thickness of plate body one, plate body two and plate body three is 2mm, and plate body one is non-porous solid plate body, plate body
It is circular hole and the diameter d=1mm of circular hole, the perforation of dust cover internal layer 20 to have multiple sound-absorption holes 21, each sound-absorption hole 21 on two
Rate is 0.2, also has the diameter d=1mm of multiple sound-absorption holes 21, each sound-absorption hole 21 for circular hole and circular hole on plate body three, dust-proof
The punching rate of cover internal layer be 0.4, as seen from Figure 4, under the same conditions, have sound-absorption hole 21 plate body sound-absorption coefficient compared with
Greatly, sound-absorbing effect is preferable, and the more intensive sound-absorbing effect that can be obviously improved plate body to a certain extent of sound-absorption hole 21, also
It is to say, dust cover internal layer 20 is during design, under the premise of its each self-strength is ensured, by the perforation of dust cover internal layer 20
Rate hole is controlled between 0.1-0.3.
In addition, sound absorbing performance and soundproof effect to verify the dust cover 100 according to the utility model embodiment, inventor
It has chosen three kinds of sound panels and it is tested respectively with standing wave tube transfer function method, measure the sound absorbing performance of each sound panel
And sound transmission loss, as shown in Figure 5 and Figure 6.Wherein, sound panel one is pasted by solid aluminium sheet and acoustical cotton and formed, and sound panel two is by wearing
Hole aluminium sheet and acoustical cotton paste composition, and sound panel three is the dust cover 100 according to the utility model embodiment, and sound panel three is by reality
Multiple sound-absorbings are respectively provided on the Pierced Aluminum Plank of heart glass epoxy, acoustical cotton and Pierced Aluminum Plank composition, sound panel two and sound panel three
Hole 21, acoustical cotton thickness be 30mm, the thickness of Pierced Aluminum Plank is 2mm.The sound panel three it can be seen from Fig. 5 and Fig. 6
Average sound transmission loss is 23dB, average sound-absorption coefficient is more than or equal to 0.63, i.e. sound panel three has good sound absorbing performance and sound insulation
Performance, especially noise frequency range is between 500Hz~2000Hz.
According to the dust cover 100 for rail vehicle of the utility model one embodiment, dust cover internal layer 20 is aluminium sheet,
Dust cover outer layer 10 is Parts Made of Composite Glass.
In the present embodiment, dust cover internal layer 20 is aluminium sheet, and the thickness of aluminium sheet can be 0.5mm, and dust cover outer layer 10 is
Parts Made of Composite Glass, aluminium sheet have preferable anti-corrosion capability, can prevent the moisture attacks dust cover internal layer 20 in air, additionally it is possible to
It prevents water droplet or oil droplet on deflecting roller from splashing and dust cover internal layer 20 is corroded on dust cover internal layer 20, and with preferable noise reduction
Effect, Parts Made of Composite Glass has stronger corrosion-resistant, high temperature resistant and the ability of fire resisting, so as to extend making for dust cover outer layer 10
With the service life, and with higher intensity, since dust cover outer layer 10 is provided in car body, passenger or work in car body
Personnel walk up and down, and the dust cover outer layer 10 of high intensity can prevent passenger or staff from damaging dust cover 100, can extend
The service life of dust cover 100, and can prevent from entering car body injury passenger or work during the traveling wheel damage of height rotation
Personnel.
In process of production, then dust cover outer layer 10, sound absorbing layer 30 and dust cover internal layer 20 are sequentially overlapped dust cover 100
It is integrally formed, can be disposable punch forming, the structure of dust cover 100 is fiberglass-three layer interlayer of acoustical cotton-fiberglass
Thus structure links together dust cover internal layer 20, sound absorbing layer 30 and dust cover outer layer 10, prevent dust cover internal layer 20 and inhale
Sound-absorbing layer 30 comes off from dust cover outer layer 10, additionally it is possible to it is total with dust cover outer layer 10 to reduce dust cover internal layer 20, sound absorbing layer 30
Body thickness, that is to say, that the thickness of dust cover 100 can be reduced, and can be provided conveniently with maintenance for the assembling of dust cover 100.
A specific embodiment of the Rail Transit System according to the utility model embodiment is specifically described with reference to the accompanying drawings.
Rail Transit System according to the present utility model includes：Track and rail vehicle, rail vehicle are set in orbit simultaneously
Operation is moved towards along track, rail vehicle includes：Car body, dust cover 100 and bogie, the bottom of car body correspond to the position of bogie
Escape port is installed, bogie has deflecting roller, and a part for deflecting roller extend into the inside of car body, dust cover across escape port
100 are formed as being located at the shell structure of bogie, and dust cover 100 is mounted in car body and covers escape port.
As shown in Figures 1 to 3, according to the dust cover of the utility model embodiment 100, including：Dust cover outer layer 10, dust cover
Internal layer 20 and sound absorbing layer 30, dust cover outer layer 10 are Parts Made of Composite Glass, and dust cover internal layer 20 is aluminium sheet, and dust cover internal layer 20 is interior
Surface is equipped with the foam reinforcing rib for the inner surface for protruding from dust cover internal layer 20, and sound absorbing layer 30 is formed as being folded in dust cover outer layer
Thickness is the acoustical cotton of 30mm between 10 and dust cover internal layer 20, and dust cover outer layer 10 is equipped with clothes-hook, and clothes-hook passes through sound absorbing layer
30 are connected with dust cover internal layer 20.
Wherein, dust cover internal layer 20 is equipped with multiple bloops, and multiple bloops are arranged in dust cover internal layer in matrix form
On 20, punching rate of the bloop on dust cover internal layer 20 is 0.1-0.3, and the cross-sectional shape of all bloops is circle, directly
Diameter is 0.5-4mm, and the distance between adjacent bloop is 1.5-8mm.
According to other compositions of the Rail Transit System of the utility model embodiment and operate for the common skill in this field
All it is known for art personnel, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or
Person's feature can in an appropriate manner combine in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
In the case of the principle and objective for not departing from the utility model can these embodiments be carried out with a variety of variations, modification, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (14)
1. a kind of dust cover for rail vehicle, which is characterized in that including：
Dust cover outer layer；
Dust cover internal layer, the dust cover internal layer are located at the inside of the dust cover outer layer；
Sound absorbing layer, the sound absorbing layer are filled between the dust cover internal layer and the dust cover outer layer.
2. the dust cover according to claim 1 for rail vehicle, which is characterized in that the dust cover internal layer is equipped with
Run through the bloop of the dust cover internal layer along the thickness direction of the dust cover internal layer.
3. the dust cover according to claim 2 for rail vehicle, which is characterized in that the perforation of the dust cover internal layer
Rate is 0.1-0.3.
4. the dust cover according to claim 2 for rail vehicle, which is characterized in that the cross section shape of the bloop
Shape is circle.
5. the dust cover according to claim 4 for rail vehicle, which is characterized in that the bloop it is a diameter of
0.5-4mm。
6. the dust cover according to claim 4 for rail vehicle, which is characterized in that the bloop is in matrix arrangements
On the dust cover internal layer.
7. the dust cover according to claim 4 for rail vehicle, which is characterized in that between the adjacent bloop
Distance is 1.5-8mm.
8. the dust cover according to claim 1 for rail vehicle, which is characterized in that the sound absorbing layer is formed as being laid with
Acoustical cotton between the dust cover outer layer and the dust cover internal layer.
9. the dust cover according to claim 8 for rail vehicle, which is characterized in that the thickness of the sound absorbing layer is
30mm。
10. according to claim 1 be used for rail
The dust cover of road vehicle, which is characterized in that the inner surface of the dust cover internal layer is equipped with and protrudes from the dust cover internal layer
Inner surface reinforcing rib.
11. the dust cover according to claim 10 for rail vehicle, which is characterized in that the reinforcing rib adds for foam
Strengthening tendons.
12. the dust cover according to claim 1 for rail vehicle, which is characterized in that the dust cover internal layer is aluminium
Plate, the dust cover outer layer are Parts Made of Composite Glass.
13. a kind of rail vehicle, which is characterized in that including：
Car body；
Bogie, the bogie are mounted on the bottom of the car body；
Be used for the dust cover of rail vehicle according to any one of claim 1-12, the bottom of the car body have with it is described
The corresponding escape port of rack position is turned to, the dust cover is mounted in the car body and the capping escape port.
14. a kind of Rail Transit System, which is characterized in that including：
Track；With
Rail vehicle according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421381.6U CN207523708U (en) | 2017-10-30 | 2017-10-30 | Dust cover and with its rail vehicle, Rail Transit System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721421381.6U CN207523708U (en) | 2017-10-30 | 2017-10-30 | Dust cover and with its rail vehicle, Rail Transit System |
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| Publication Number | Publication Date |
|---|---|
| CN207523708U true CN207523708U (en) | 2018-06-22 |
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ID=62571537
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| CN201721421381.6U Active CN207523708U (en) | 2017-10-30 | 2017-10-30 | Dust cover and with its rail vehicle, Rail Transit System |
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| Country | Link |
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| CN (1) | CN207523708U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572483A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Rail vehicle |
| CN112572484A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Rail vehicle |
| CN112744242A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Wheel package subassembly and rail vehicle who has it |
-
2017
- 2017-10-30 CN CN201721421381.6U patent/CN207523708U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112572483A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Rail vehicle |
| CN112572484A (en) * | 2019-09-30 | 2021-03-30 | 比亚迪股份有限公司 | Rail vehicle |
| CN112572484B (en) * | 2019-09-30 | 2022-10-18 | 比亚迪股份有限公司 | Rail vehicle |
| CN112744242A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Wheel package subassembly and rail vehicle who has it |
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Effective date of registration: 20181219 Address after: 638300 No. 1 Shibin Road, Kuige Street, Guang'an Economic and Technological Development Zone, Sichuan Province Patentee after: Guang'an BYD Industrial Co., Ltd. Address before: 518118 BYD Road, Pingshan New District, Shenzhen, Guangdong 3009 Patentee before: Biyadi Co., Ltd. |