CN110466552B - Railway vehicle roof structure and railway vehicle - Google Patents
Railway vehicle roof structure and railway vehicle Download PDFInfo
- Publication number
- CN110466552B CN110466552B CN201910794339.6A CN201910794339A CN110466552B CN 110466552 B CN110466552 B CN 110466552B CN 201910794339 A CN201910794339 A CN 201910794339A CN 110466552 B CN110466552 B CN 110466552B
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- roof
- module
- roof module
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- rail vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/12—Roofs
Abstract
The invention relates to the technical field of railway vehicles, and discloses a railway vehicle roof structure and a railway vehicle, which comprise: the roof body comprises a first end roof module, a middle roof module, a second end roof module and an air-conditioning curved roof module, wherein the air-conditioning curved roof module is arranged between the first end roof module and the middle roof module and/or between the middle roof module and the second end roof module, and the first end roof module, the middle roof module, the second end roof module and the air-conditioning curved roof module are welded into a whole. The railway vehicle roof structure has the advantages of small welding amount, small deformation after welding, suitability for flexible installation among different vehicle types, better universality, lower process requirement and higher structural strength.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a railway vehicle roof structure and a railway vehicle.
Background
At present, the stainless steel roof structure in the existing railway vehicle is generally divided into two parts, namely, a first part is a roof beam column and a second part is a roof panel, wherein the roof beam column generally comprises a roof camber beam, a lower side beam, a side cover plate and the like. The roof beam column is designed into an integral assembly, the roof plate usually comprises roof corrugated plates and a stamping top plate, the roof corrugated plates and the stamping top plate are arranged alternately along the length direction of the rail vehicle, the roof corrugated plates and the stamping top plate are designed into the integral assembly to form the roof plate, when the roof plate is integrally welded on the roof beam column, the welding amount can be greatly increased, and therefore the risk of deformation after welding is increased.
In addition, a plurality of sets of tools need to be manufactured subsequently to meet the requirement of integrally mounting the roof plate on the roof beam column, however, the integral mounting mode greatly prolongs the manufacturing period of the stainless steel roof structure and greatly reduces the universality of use among different vehicle types.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a railway vehicle roof structure and a railway vehicle, and at least solves the technical problems that a stainless steel roof structure in the prior art is large in welding amount, serious in deformation after welding, incapable of being flexibly installed among different vehicle types and low in universality.
(II) technical scheme
In order to solve the above technical problem, according to a first aspect of the present invention, there is provided a railway vehicle roof structure comprising: the roof body comprises a first end roof module, a middle roof module, a second end roof module and an air-conditioning curved roof module, wherein the air-conditioning curved roof module is arranged between the first end roof module and the middle roof module and/or between the middle roof module and the second end roof module, and the first end roof module, the middle roof module, the second end roof module and the air-conditioning curved roof module are welded into a whole.
The first end roof module, the middle roof module, the second end roof module and the air-conditioning curved roof module respectively comprise a roof framework and a roof plate, wherein the roof plate is arranged on the upper end face of the roof framework.
The roof framework comprises a plurality of roof camber beams, the roof camber beams are arranged at intervals along the length direction of a vehicle body, and the roof plate is welded on the upper end face of each roof camber beam.
Wherein the roof panel comprises a corrugated roof panel, with hollow regions configured in the corrugated roof panel in each of the first, middle and second end roof modules; the railway vehicle roof structure further comprises a stamping top plate, wherein the stamping top plate is embedded in the hollow area and is welded with the corrugated top plate into a whole.
Wherein a waste discharge port is configured on the punching top plate; the railway vehicle roof structure further comprises a waste discharge flange which is arranged at the edge of the waste discharge opening and is welded with the stamping top plate into a whole.
The railway vehicle roof structure further comprises roof lower side beams arranged at two ends of the roof camber beam respectively and side wall side beams connected with the roof lower side beams on the corresponding sides.
The side wall upper edge beam comprises a side wall upper edge beam body, and a first arc-shaped beam and a second arc-shaped beam which are respectively arranged on two sides of the side wall upper edge beam body and extend towards the direction of the roof lower edge beam, wherein the side wall upper edge beam body, the first arc-shaped beam and the second arc-shaped beam jointly form a groove-shaped structure with an upward opening; the lower end of the roof side sill is embedded in the groove-shaped structure, and the contour shape of the lower end of the roof side sill is matched with the inner contour shape of the groove-shaped structure.
The railway vehicle roof structure further comprises stainless steel sliding grooves which are respectively arranged on two sides of the inner side face of the roof body and extend along the direction of a vehicle body, wherein the cross section of each stainless steel sliding groove is in a C shape with a downward opening.
The roof structure of the railway vehicle further comprises a plurality of air conditioner installation seats, and each air conditioner installation seat is arranged on a corresponding roof camber beam in the first end roof module, the air conditioner camber roof module and the second end roof module.
The air conditioner mounting seat is constructed into a U-shaped body with an opening facing to the outside, and a supporting piece is arranged inside the U-shaped body.
According to a second aspect of the invention, a rail vehicle is also provided, comprising the rail vehicle roof structure described above.
(III) advantageous effects
Compared with the prior art, the railway vehicle roof structure provided by the invention has the following advantages:
according to the invention, the roof body is constructed into a split type module structure, namely, the roof body is divided into the four modules, namely the first end roof module, the middle roof module, the second end roof module and the air conditioner curved roof module, different vehicle types can properly increase the number of the corresponding modules in the four modules and randomly combine the modules according to the requirement of equipment arrangement and the requirement of the length of the vehicle body of a railway vehicle, therefore, the roof body is set into a modular structure, the mounting flexibility and the use universality of the roof body are effectively enhanced, each large module can be independently manufactured, and when the modules are assembled, the utilization rate of a tool is improved, the cost of the tool is saved, and meanwhile, the design and manufacturing period of the whole roof body is also saved. In addition, compared with the existing roof body which is of an integral structure, when the roof body is manufactured, the whole roof plate needs to be welded on the roof framework, when the roof body is manufactured, only the welding between the adjacent modules needs to be realized, so that the welding amount is greatly reduced, the probability of deformation after welding is effectively reduced, and the size precision of each module is greatly improved.
Drawings
Fig. 1 is an exploded view of a roof structure of a railway vehicle according to an embodiment of the present invention;
FIG. 2 is an overall schematic view of the first end roof module of FIG. 1;
FIG. 3 is a schematic view of the connection structure of the corrugated top plate and the stamped top plate in FIG. 2;
FIG. 4 is a partial enlarged view of FIG. 3 at I;
FIG. 5 is a schematic view of the connection of the roof rocker and the side wall rocker of FIG. 1;
fig. 6 is a front view of a connection structure of the roof body and the stainless steel chute in fig. 1.
In the figure, 1: a roof body; 11: a first end roof module; 12: a middle roof module; 13: a second end roof module; 14: an air conditioner roof bending module; 2: a roof frame; 21: a roof camber beam; 3: a roof panel; 31: a corrugated top plate; 4: punching a top plate; 5: a waste discharge flange; 6: a roof side rail; 7: side wall upper edge beams; 71: a sidewall upper side beam body; 72: a first arc beam; 73: a second arc beam; 8: a groove-shaped structure; 9: a stainless steel chute; 10: an air conditioner mounting seat.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 6, the railway vehicle roof structure is schematically shown to include a roof body 1, a first end roof module 11, an intermediate roof module 12, a second end roof module 13, and an air conditioning sunroof module 14.
In an embodiment of the present invention, the roof body 1 includes a first end roof module 11, a middle roof module 12, a second end roof module 13, and an air-conditioning knee module 14, wherein the air-conditioning knee module 14 is disposed between the first end roof module 11 and the middle roof module 12 and/or between the middle roof module 12 and the second end roof module 13, and the first end roof module 11, the middle roof module 12, the second end roof module 13, and the air-conditioning knee module 14 are welded as one body. Specifically, by configuring the roof body 1 as a split-type module structure, i.e., by dividing the roof body 1 into four modules, i.e., a first end roof module 11, a middle roof module 12, a second end roof module 13, and an air-conditioning roof module 14, different vehicle types can be appropriately increased in number and arbitrarily combined according to the needs of equipment arrangement and the length of the body of the railway vehicle, it can be seen that by arranging the roof body 1 of the present invention in a modular structure, the flexibility of installation and versatility of use of the roof body 1 are effectively enhanced, each large module can be manufactured separately, when the modules are assembled, the utilization rate of the tool is improved, the tool cost is saved, and meanwhile, the design and manufacturing period of the whole roof body 1 is also saved.
In addition, compared with the existing roof body which is of an integral structure, when the roof body is manufactured, a whole roof plate needs to be welded on a roof framework, when the roof body 1 is manufactured, only the welding between the adjacent modules needs to be realized, so that the welding amount is greatly reduced, the probability of deformation after welding is effectively reduced, and the size precision of each module is greatly improved.
It should be noted that if the number of the air-conditioning roof module 14 in the present invention is 1, the air-conditioning roof module 14 may be disposed between the first end roof module 11 and the middle roof module 12, or the air-conditioning roof module 14 may be disposed between the middle roof module 12 and the second end roof module 13.
If the number of the air-conditioning roof module 14 is 2 in the present invention, the air-conditioning roof module 14 may be disposed between the first end roof module 11 and the middle roof module 12 and between the middle roof module 12 and the second end roof module 13, respectively.
It should be noted that the first end roof module 11, the middle roof module 12, the second end roof module 13 and the air conditioner roof module 14 are matched in contour shape, so that smooth connection of the welded portion can be ensured when welding between the modules is realized, and thus the overall aesthetic property of the roof body 1 is ensured, wherein the overall shape of the roof body 1 is similar to the roof shape of a general-purpose railway vehicle, and for the sake of economy, the detailed description is omitted.
In the embodiment of the present invention, the welding between the modules may be laser welding.
In one embodiment of the present invention, the first end roof module 11, the middle roof module 12, the second end roof module 13, and the air conditioning roof module 14 each include a roof frame 2 and a roof panel 3, wherein the roof panel 3 is disposed on an upper end surface of the roof frame 2. It can be seen that the roof frame 2 is arranged to mainly support and fix the roof panel 3.
In another embodiment of the present invention, the roof frame 2 includes a plurality of roof bows 21, each of the roof bows 21 is disposed at intervals in the longitudinal direction of the vehicle body, and the roof panel 3 is welded to the upper end surface of each of the roof bows 21. Specifically, each of the roof bow 21 may be made of Z-section steel or hat-section steel. Wherein, the Z-shaped steel and the cap-shaped steel both have good atmospheric corrosion resistance, higher strength and certain low-temperature impact toughness, and also have excellent welding performance. Accordingly, the roof bow 21 made of the Z-section steel or the hat-section steel also has advantages of corrosion resistance, high strength, and good weldability, and the roof bow 21 also has advantages of low-temperature impact toughness.
As shown in fig. 1, 2, 3 and 4, in a preferred embodiment of the present invention, the roof panel 3 includes a corrugated roof panel 31, and hollow regions (not shown) are formed in the corrugated roof panels 31 in the first end roof module 11, the middle roof module 12 and the second end roof module 13.
The railway vehicle roof structure further comprises a stamped roof panel 4, wherein the stamped roof panel 4 is embedded in the hollow area and is welded with the corrugated roof panel 31 into a whole. Specifically, the punch top plate 4 of the present invention is a smooth flat plate structure, and the contour size of the punch top plate 4 is small and only has a size that can be used for opening a waste discharge port, so that the size of the whole body is greatly reduced compared with the existing punch top plate and corrugated top plate which are arranged alternately and extend along the length direction of the vehicle body, and thus, when the punch top plate 4 and the corrugated top plate 31 are welded, the size of the weld is greatly reduced, the welding amount is reduced, the probability of deformation after welding is reduced, and the aesthetics of the first end roof module 11, the middle roof module 12 and the second end roof module 13 is ensured.
Preferably, the stamped top plate 4 and the corrugated top plate 31 are connected into a whole by laser welding, the existing welding method is usually arc welding, and the laser welding adopted in the present application has the advantages of small welding deformation and good appearance.
As shown in fig. 3 and 4, in one embodiment of the present invention, a waste discharge port (not shown) is formed in the punch top plate 4.
The railway vehicle roof structure further comprises a waste discharge flange 5 which is arranged at the edge of the waste discharge opening and is welded with the stamping top plate 4 into a whole. Specifically, the waste flange 5 may be fixed to the waste outlet by laser welding. The waste discharge flange 5 can be used for installing a waste discharge device.
It is to be noted that the structure and function of the waste device are well known to those skilled in the art, and will not be described in detail herein for the sake of brevity.
As shown in fig. 5, in a preferred embodiment of the present invention, the rail vehicle roof structure further includes roof sills 6 respectively provided at both ends of the roof bow 21 and side wall roof sills 7 connected to the roof sills 6 on the respective sides. Specifically, compared with the existing roof side sill, the roof side sill 6 of the invention cancels the original horizontal plane design of the bottom end of the roof side sill 6, and in the process of connecting the side wall upper side sill 7 and the roof side sill 6, the horizontal plane and the horizontal plane do not need to be in a form of being attached to each other, and the lower part of the roof side sill 6 is arranged in a form of being spliced with the side wall upper side sill 7, so that the influence of manufacturing precision can be avoided.
It should be noted that the manufacturing process requirement of the roof side sill 6 is low, and the roof side sill is not affected by flatness and can be well spliced with the side wall roof side rail 7.
In a preferred embodiment of the invention, as shown in fig. 5, the side wall roof rail 7 comprises a side wall roof rail body 71 and a first curved beam 72 and a second curved beam 73 respectively arranged on both sides of the side wall roof rail body 71 and extending in the direction of the roof sill 6, wherein the side wall roof rail body 71, the first curved beam 72 and the second curved beam 73 together form a channel structure 8 with an open upward facing side. It should be noted that the overall shape of the side wall roof side rail body 71 is similar to an irregular polygon, and the first arc beam 72 and the second arc beam 73 are respectively arranged on both sides of the polygon close to the side edge of the roof side rail 6, wherein the first arc beam 72 and the second arc beam 73 are oppositely arranged, and the first arc beam 72 and the second arc beam 73 are both bent towards the outer side and are in the same degree of bending.
The lower end of the roof rocker 6 is embedded in the channel structure 8, and the contour shape of the lower end of the roof rocker 6 is matched with the inner contour shape of the channel structure 8. In this way, it is ensured that the roof side rail 6 can be smoothly inserted into the channel structure 8, and, in comparison with the butt joint method, the requirement for the flatness of the bottom end horizontal plane of the roof side rail 6 is reduced by adopting the plug-in connection method, that is, the connection between the roof side rail 6 and the side wall side rail 7 is not affected by the manufacturing precision.
As shown in fig. 6, in a preferred embodiment of the present invention, the rail vehicle roof structure further includes stainless steel sliding grooves 9 respectively disposed on both sides of the inner side surface of the roof body 1 and extending in the vehicle body direction, wherein the stainless steel sliding grooves 9 have a C-shape with an opening facing downward in cross section. In particular, since the original sliding groove is usually made of aluminum profiles and most of the sliding groove is fixed to the roof camber beam through bolts, there is a risk of electrical corrosion between dissimilar metals.
However, the stainless steel chute 9 of the present invention is made of stainless steel, and the stainless steel chute 9 can be welded on both sides of the inner side of the roof body 1, so that the risk of electrical corrosion between different metals can be avoided.
In addition, the stainless steel chutes 9 are symmetrically arranged along the center of the roof body 1, and can be used for hanging roof interior trim panels, air ducts of air conditioners in vehicles, wire grooves and the like.
It should be noted that, as the stainless steel chute 9 is welded with the roof camber beam 21, an integral frame structure can be formed, and the overall rigidity of the roof body 1 is improved. It can be seen that the stainless steel chute 9 of the present application can be used for vehicle-mounting of a roof, and on the other hand, can also serve as a side rail of the roof, thereby achieving the effect that one component has multiple functions at the same time.
As shown in fig. 2, in a preferred embodiment of the present invention, the railway vehicle roof structure further includes a plurality of air-conditioning mounts 10, and each of the air-conditioning mounts 10 is disposed on a corresponding roof camber beam 21 of the first end roof module 11, the air-conditioning camber module 14, and the second end roof module 13. Specifically, the air conditioner mounting seat 10 is directly arranged on the roof camber beam 21 in the module, so that a mounting position can be provided for the air conditioner mounting seat 10, meanwhile, the air conditioner mounted on the air conditioner mounting seat 10 can be better supported, and the condition that a support beam is independently arranged to support the air conditioner is omitted.
In a preferred embodiment of the present invention, the air conditioner mounting base 10 is constructed as a U-shaped body (not shown) opened to the outside, and a support member (not shown) is provided inside the U-shaped body. It should be noted that the U-shaped body includes a bottom plate installed on the roof bow 21, a top plate disposed right above the bottom plate, and an arc plate connecting the bottom plate and the top plate, wherein the bottom plate is welded on the roof bow 21, and the air conditioner mounting seat 10 and the top plate can be fixedly installed by fastening with bolts or screws.
The support member may be a support rod, a support post or a support plate, etc., and may be welded between the top plate and the bottom plate, it being understood that the support member may be arranged vertically or obliquely.
The setting of this support piece can strengthen the overall structure intensity of this U-shaped body, avoids the air conditioner to install the back on air conditioner mount pad 10, under the action of gravity of air conditioner, causes the roof to take place the condition of slope towards the bottom plate direction.
According to a second aspect of the invention, a rail vehicle is also provided, comprising the rail vehicle roof structure described above.
In summary, by configuring the roof body 1 as a split-type module structure, i.e., by dividing the roof body 1 into four modules, i.e., a first end roof module 11, a middle roof module 12, a second end roof module 13 and an air-conditioning roof module 14, different vehicle types can be appropriately increased in number and arbitrarily combined according to the needs of equipment arrangement and the length of the body of the rail vehicle, it can be seen that by arranging the roof body 1 of the present invention in a modular structure, the flexibility of installation and versatility of use of the roof body 1 are effectively enhanced, each large module can be manufactured separately, when the modules are assembled, the utilization rate of the tool is improved, the tool cost is saved, and meanwhile, the design and manufacturing period of the whole roof body 1 is also saved.
In addition, compared with the existing roof body which is of an integral structure, when the roof body is manufactured, a whole roof plate needs to be welded on a roof framework, when the roof body 1 is manufactured, only the welding between the adjacent modules needs to be realized, so that the welding amount is greatly reduced, the probability of deformation after welding is effectively reduced, and the size precision of each module is greatly improved.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A rail vehicle roof structure, comprising:
a roof body including a first end roof module, a middle roof module, a second end roof module, and an air conditioning drop roof module, wherein the air conditioning drop roof module is disposed between the first end roof module and the middle roof module and/or between the middle roof module and the second end roof module, and the first end roof module, the middle roof module, the second end roof module, and the air conditioning drop roof module are welded together;
the first end roof module, the middle roof module, the second end roof module and the air-conditioning curved roof module respectively comprise a roof framework and a roof plate;
the roof framework comprises a plurality of roof camber beams, and the roof camber beams are arranged at intervals along the length direction of the vehicle body;
the railway vehicle roof structure further comprises roof lower side beams arranged at two ends of the roof camber beam respectively and side wall upper side beams connected with the roof lower side beams on the corresponding sides;
the side wall roof side rail comprises a side wall roof side rail body, and a first arc-shaped beam and a second arc-shaped beam which are respectively arranged on two sides of the side wall roof side rail body and extend towards the direction of the roof lower side rail, wherein the side wall roof side rail body, the first arc-shaped beam and the second arc-shaped beam jointly form a groove-shaped structure with an upward opening;
the lower end of the roof side sill is embedded in the groove-shaped structure, and the contour shape of the lower end of the roof side sill is matched with the inner contour shape of the groove-shaped structure.
2. The rail vehicle roof structure according to claim 1, characterized in that the roof panel is provided at an upper end face of the roof frame.
3. The rail vehicle roof structure as claimed in claim 2, characterized in that the roof panel is welded to an upper end face of each roof bow.
4. The rail vehicle roof structure of claim 2, wherein the roof panel comprises a corrugated roof panel, and wherein a hollow region is configured in the corrugated roof panel in each of the first, middle and second end roof modules;
the railway vehicle roof structure further comprises a stamping top plate, wherein the stamping top plate is embedded in the hollow area and is welded with the corrugated top plate into a whole.
5. The rail vehicle roof structure as claimed in claim 4, characterized in that a waste discharge opening is configured on the punch top panel;
the railway vehicle roof structure further comprises a waste discharge flange which is arranged at the edge of the waste discharge opening and is welded with the stamping top plate into a whole.
6. The rail vehicle roof structure according to any one of claims 1 to 5, further comprising stainless steel runners provided on both sides of the inner side surface of the roof body, respectively, and extending in the vehicle body direction, wherein the stainless steel runners have a cross-sectional shape of a C-shape with an opening facing downward.
7. The rail vehicle roof structure of claim 3, further comprising a plurality of air conditioning mounts, each air conditioning mount being disposed on a respective roof camber beam in the first, air conditioning camber module, and second end roof module.
8. The rail vehicle roof structure of claim 7, wherein the air conditioner mounting seat is configured as a U-shaped body with an opening facing outward, and a support member is provided inside the U-shaped body.
9. A rail vehicle, characterized in that it comprises a rail vehicle roof construction according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910794339.6A CN110466552B (en) | 2019-08-27 | 2019-08-27 | Railway vehicle roof structure and railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910794339.6A CN110466552B (en) | 2019-08-27 | 2019-08-27 | Railway vehicle roof structure and railway vehicle |
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| CN110466552A CN110466552A (en) | 2019-11-19 |
| CN110466552B true CN110466552B (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU222913U1 (en) * | 2023-11-09 | 2024-01-23 | Общество с ограниченной ответственностью "Всесоюзный научно-исследовательский центр транспортных технологий" (ООО "ВНИЦТТ") | BOXCAR |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU207602U1 (en) * | 2021-05-19 | 2021-11-03 | Акционерное общество Алтайского вагоностроения (АО "Алтайвагон") | COVERED FREIGHT WAGON |
| DE102021208008A1 (en) * | 2021-07-26 | 2023-01-26 | Siemens Mobility GmbH | Method of manufacturing a modular roof assembly for a car body for a railway vehicle and roof assembly |
| CN113619625B (en) * | 2021-08-04 | 2023-07-21 | 中车唐山机车车辆有限公司 | Rail train's automobile body and rail train |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0602259B1 (en) * | 1992-12-14 | 2001-04-25 | Kawasaki Jukogyo Kabushiki Kaisha | Vehicle body and assembling method for the same |
| DE19757204C1 (en) * | 1997-12-22 | 1999-04-29 | Abb Daimler Benz Transp | Body cell for railway carriage superstructures |
| CN201932170U (en) * | 2010-12-10 | 2011-08-17 | 南车青岛四方机车车辆股份有限公司 | Connector structure for waste exhaust fan of metro vehicle |
| CN103832443A (en) * | 2014-03-24 | 2014-06-04 | 唐山轨道客车有限责任公司 | Roof structure used for subway vehicle |
| CN104118440B (en) * | 2014-07-11 | 2016-08-17 | 长春轨道客车股份有限公司 | A kind of inorganic group platform sealed rustless steel roof structure |
| CN105292154A (en) * | 2015-10-28 | 2016-02-03 | 中国北车集团大连机车车辆有限公司 | Ceiling fault surface structure of urban rail stainless steel vehicle |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU222913U1 (en) * | 2023-11-09 | 2024-01-23 | Общество с ограниченной ответственностью "Всесоюзный научно-исследовательский центр транспортных технологий" (ООО "ВНИЦТТ") | BOXCAR |
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