CN115158379B - Tram steel aluminium mixes ceiling - Google Patents
Tram steel aluminium mixes ceiling Download PDFInfo
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- CN115158379B CN115158379B CN202210931333.0A CN202210931333A CN115158379B CN 115158379 B CN115158379 B CN 115158379B CN 202210931333 A CN202210931333 A CN 202210931333A CN 115158379 B CN115158379 B CN 115158379B
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- ceiling
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to a tram steel-aluminum mixed ceiling, which comprises: an aluminum alloy ceiling module; a carbon steel ceiling module connected with the aluminum alloy ceiling module; and a hinge structure connected with the carbon steel roof module, wherein the aluminum alloy roof module and the carbon steel roof module are each integrally formed into a closed box structure, and the top surfaces of the aluminum alloy roof module and the carbon steel roof module are not on the same plane. The steel-aluminum mixed ceiling structure provided by the invention can fully exert the respective advantages of aluminum alloy and carbon steel, and has at least the following advantages: the flatness of the whole ceiling is good, and water accumulation is not easy to occur; the light weight of the ceiling structure is realized, the production energy consumption is reduced, and the production efficiency is improved; the stress requirement of the upper hinge of the end part is optimized, and the safety of the whole vehicle is improved; the steel-aluminum mixed structure with high and low tops enables the water drainage of the ceiling to be smoother.
Description
Technical Field
The invention relates to a steel-aluminum mixed ceiling of a tramcar.
Background
At present, most of tramcars are two kinds of roofs, firstly, a carbon steel plate girder roof structure is adopted, and the flatness of the roof is difficult to guarantee due to the fact that the welding quantity of the carbon steel plate girder roof structure is large. Secondly, adopt the large-scale cavity aluminium alloy tailor-welded construction of polylith longitudinal extrusion, although can realize automobile body lightweight design, because the last hinge structure atress condition of tram tip is very complicated, and aluminium alloy intensity is weaker, still need consider the connection to rotating the hinge alone. For example, the aluminum profile of the tramcar roof structure in the prior art extends longitudinally, and the end part does not form a closed loop structure, so that the strength is weak. The end part is just provided with an upper hinge structure with larger stress, so the whole ceiling structure needs to be improved and optimized.
Disclosure of Invention
Aiming at the defects of the prior art, the invention designs the steel-aluminum mixed ceiling structure to fully exert the respective advantages of aluminum alloy and carbon steel, thereby meeting the requirements of flatness and light weight of the ceiling and stress requirements of the upper hinge of the end part.
Specifically, the invention provides a tram steel-aluminum hybrid ceiling, which comprises: an aluminum alloy ceiling module; a carbon steel ceiling module connected with the aluminum alloy ceiling module; and a hinge structure connected with the carbon steel roof module, wherein the aluminum alloy roof module and the carbon steel roof module are each integrally formed into a closed box structure, and the top surfaces of the aluminum alloy roof module and the carbon steel roof module are not on the same plane.
In an embodiment of the invention, an aluminum alloy ceiling module comprises a plurality of aluminum profiles arranged in parallel and end beams transversely arranged at the ends of the aluminum profiles.
In the embodiment of the invention, the aluminum profile is a large-section hollow extruded aluminum profile, the end beam seals the end part of the aluminum profile, and the top surface of the end beam and the top surface of the aluminum profile are not on the same plane.
In an embodiment of the present invention, the carbon steel ceiling module includes a first beam, a square steel disposed in parallel with the first beam, and a plurality of second beams disposed between the first beam and the square steel, the first beam, the square steel, and the second beams constituting a steel frame structure.
In an embodiment of the invention, the carbon steel roof module further comprises a skin panel disposed at least partially over the steel frame structure.
In an embodiment of the invention, the hinge structure is welded to the skin panel and/or the steel frame structure.
In an embodiment of the invention, the tram steel aluminium hybrid roof further comprises at least one connection socket, through which the aluminium alloy roof module is connected to the carbon steel roof module.
In the embodiment of the invention, one end of the connecting seat is welded on the square steel, and the other end of the connecting seat is connected with the aluminum alloy ceiling module through a connecting piece.
In an embodiment of the invention, the square steel is located below the end beams, and the aluminum profiles, the end beams and the skin plates are arranged in a step shape.
In an embodiment of the present invention, the first beam and the square steel form a closed loop structure with the vertical columns of the side walls connected to them, respectively, in the lateral direction of the tram, and the second beam forms a closed loop structure with the vertical columns of the end walls butted with the second beam, in the longitudinal direction of the tram.
The steel-aluminum mixed ceiling structure provided by the invention can fully exert the respective advantages of aluminum alloy and carbon steel, and has at least the following advantages: the flatness of the whole ceiling is good, and water accumulation is not easy to occur; the light weight of the ceiling structure is realized, the production energy consumption is reduced, and the production efficiency is improved; the stress requirement of the upper hinge of the end part is optimized, and the safety of the whole vehicle is improved; the steel-aluminum mixed structure with high and low tops enables the water drainage of the ceiling to be smoother.
Drawings
FIG. 1 shows a schematic diagram of a tram steel-aluminum hybrid roof according to an embodiment of the invention;
FIG. 2 shows a schematic view of an aluminum alloy ceiling module in accordance with an embodiment of the invention;
FIG. 3 shows a schematic view of a carbon steel roof module according to an embodiment of the invention;
FIG. 4 shows a schematic bottom view of a carbon steel roof module according to an embodiment of the invention;
fig. 5 shows an enlarged schematic cross-sectional view of the portion indicated by circle a in fig. 4.
Detailed Description
It should be understood that the embodiments of the invention shown in the exemplary embodiments are only illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art will readily appreciate that many modifications are possible without materially departing from the teachings of the subject matter of this disclosure. Accordingly, all such modifications are intended to be included within the scope of present invention. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and parameters of the exemplary embodiments without departing from the spirit of the present inventions.
According to the present invention, there is provided a steel-aluminum hybrid ceiling 1 for a tram, as shown in fig. 1, comprising: an aluminum alloy ceiling module 10; a carbon steel ceiling module 20 connected to the aluminum alloy ceiling module 10; and a hinge structure 30 connected with the carbon steel roof module 20, wherein the aluminum alloy roof module 10 and the carbon steel roof module 20 are each integrally formed into a closed box structure, and the closed box structure improves the strength of the aluminum alloy roof module 10 and the carbon steel roof module 20. Further, the top surface 11 of the aluminum alloy ceiling module 10 and the top surface 21 of the carbon steel ceiling module 20 are not on the same plane.
With further reference to fig. 2, there is shown an aluminum alloy ceiling module 10 according to an embodiment of the invention comprising a plurality of side-by-side aluminum profiles and end beams 12 disposed laterally at the ends of the aluminum profiles. As shown in fig. 2, the aluminum alloy ceiling module 10 includes five aluminum profiles arranged in parallel, namely, aluminum profiles 13, 14, 15, 16, 17, which are connected together in a plug-in manner, and are ground flat after being welded in a "V" shape. Each aluminium profile may be a large section hollow extruded aluminium profile, the aluminium profiles 13, 14, 15, 16, 17 forming an overall hollow mould cavity, and the end beams 12 may be connected to the ends of the aluminium profiles 13, 14, 15, 16, 17 by welding to close off the ends of the aluminium profiles 13, 14, 15, 16, 17 and thereby close off the hollow mould cavity. As shown in fig. 2, the top surface of the end beam 12 is not on the same plane as the top surfaces of the aluminum profiles 13, 14, 15, 16, 17, and there is a height difference between the top surface of the end beam 12 and the top surfaces of the aluminum profiles 13, 14, 15, 16, 17, thereby forming a step shape.
Referring further to fig. 3 and 4, a perspective view and a bottom view, respectively, of a carbon steel ceiling module 20 according to an embodiment of the present invention are shown. The carbon steel ceiling module 20 may include a first beam 22, a square steel 23 disposed in parallel with the first beam 22, and a plurality of second beams 24 disposed between the first beam 22 and the square steel 23, the first beam 22, the square steel 23, and the second beams 24 being welded to form a steel frame structure. In addition, the carbon steel roof module 20 further includes a skin panel 25 disposed at least partially over the steel frame structure, the skin panel 25 being welded to the steel frame structure, the provision of the skin panel 25 further enhancing the overall rigidity and strength of the tram.
In one embodiment of the invention, the carbon steel roof module 20 is a closed box structure formed by welding a first beam 22, a square steel 23, a second beam 24, and a skin panel 25. The first beam 22 may be a cross beam extending in the lateral direction of the tram and the second beam 24 may be a longitudinal beam extending in the longitudinal direction of the tram. The first beam 22 and the square steel 23 form a closed loop structure with the uprights of the side walls to which they are connected, respectively, in the lateral direction of the tram, and the second beam 24 forms a closed loop structure with the uprights of the end walls to which the second beam is butted, in the longitudinal direction of the tram. The closed loop structure can greatly improve the shearing rigidity of the ceiling, thereby improving the torsional rigidity of the tramcar body.
The hinge structure 30 of the tram, which is an important load-bearing and force-transmitting component, can be directly welded on the carbon steel ceiling module 20, for example, directly welded on the skin plate 25 and/or the steel frame structure, and compared with the prior riveting structure, the connecting mode of the present invention has higher connecting strength, and can avoid potential safety hazards caused by weak load-bearing capacity of the welding seam of the aluminum alloy material.
The aluminum alloy ceiling module 10 and the carbon steel ceiling module 20 are connected in a butt joint manner. In particular, the tram steel-aluminum hybrid roof 1 may further include at least one connection seat 40, and the aluminum alloy roof module 10 is connected to the carbon steel roof module 20 through the connection seat 40. One end of the connection base 40 is welded to the square steel 23 of the carbon steel ceiling structure, and the other end is connected to the aluminum alloy ceiling module 10 through the connection member 50. In an embodiment of the present invention, the connection member 50 may include a T-groove bolt 51, a nut 52, a spring washer 53, a flat washer 54, and an adjustment pad 55, the spring washer 53, the flat washer 54, and the adjustment pad 55 being disposed in this order from bottom to top, the adjustment pad 55 being connected with a slide groove (not shown) provided in an aluminum profile of the aluminum alloy ceiling module 10. The ultimate tensile strength of the bolt connection meets the bearing strength of the carbon steel.
Referring to fig. 5, the aluminum alloy ceiling module 10 and the carbon steel ceiling module 20 are connected together by the connecting seats 40 and the connecting pieces 50, and the square steel 23 is located below the end beam 12. As shown in fig. 5, the square steel 23 is located entirely below the end beams 12 and below the aluminum profiles, whereby a plurality of aluminum profiles, end beams 12 and skin panels 25 may be arranged in a stepped fashion (as shown in fig. 1).
In an embodiment of the invention, the tram steel aluminium hybrid roof 1 may further comprise a sound and heat insulating material, which may be provided on the aluminium alloy roof module 10 and/or the carbon steel roof module 20, for example in the form of a material coating.
The tram steel-aluminum mixed ceiling provided by the invention can at least fully exert the respective advantages of aluminum alloy and carbon steel, and has at least the following advantages: the flatness of the whole ceiling is good, and water accumulation is not easy to occur; the light weight of the ceiling structure is realized, the production energy consumption is reduced, and the production efficiency is improved; the stress requirement of the upper hinge of the end part is optimized, and the safety of the whole vehicle is improved; the steel-aluminum mixed structure with high and low tops enables the water drainage of the ceiling to be smoother. In addition, through finite element simulation analysis, the stress and the strain of the hinge structure of the tramcar steel-aluminum hybrid ceiling meet the requirements. The steel-aluminum mixed ceiling of the tramcar is capped by adopting a new material, and sound insulation and heat insulation materials are arranged, so that the tramcar is effectively heat-insulating, shock-absorbing and noise-reducing. The whole invention has simple structure, strong bearing capacity and strong adaptability.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention; modifications and equivalent substitutions are intended to be included in the scope of the claims without departing from the spirit and scope of the present invention.
Claims (3)
1. A tram steel aluminum hybrid ceiling comprising:
an aluminum alloy ceiling module;
the carbon steel ceiling module is connected with the aluminum alloy ceiling module through a connecting seat; and
a hinge structure connected with the carbon steel ceiling module,
wherein the aluminum alloy ceiling module and the carbon steel ceiling module are respectively integrated into a closed box-shaped structure, the top surface of the aluminum alloy ceiling module and the top surface of the carbon steel ceiling module are not on the same plane,
the aluminum alloy ceiling module comprises a plurality of aluminum profiles which are arranged in parallel and end beams which are transversely arranged at the end parts of the aluminum profiles, wherein the aluminum profiles are large-section hollow extruded aluminum profiles, the end beams block the end parts of the aluminum profiles, and the top surfaces of the end beams and the top surfaces of the aluminum profiles are not on the same plane;
the carbon steel ceiling module includes a first beam, a square steel disposed parallel to the first beam, and a plurality of second beams disposed between the first beam and the square steel, the first beam, the square steel, and the second beams forming a steel frame structure, and the carbon steel ceiling module further includes a skin panel disposed at least partially over the steel frame structure;
one end of the connecting seat is welded on the square steel, and the other end of the connecting seat is connected with the aluminum alloy ceiling module through a connecting piece; and is also provided with
The square steel is located below the end beams, and a plurality of aluminum profiles, the end beams and the skin plates are arranged in a step shape.
2. The tram steel-aluminum hybrid ceiling of claim 1, wherein the hinge structure is welded to the skin panel and/or the steel frame structure.
3. The tram steel-aluminum hybrid ceiling according to claim 1, wherein the first beam and the square steel form a closed loop structure with the uprights of the side walls connected to them, respectively, in the lateral direction of the tram, and the second beam forms a closed loop structure with the uprights of the end walls butted with the second beam in the longitudinal direction of the tram.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931333.0A CN115158379B (en) | 2022-08-04 | 2022-08-04 | Tram steel aluminium mixes ceiling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210931333.0A CN115158379B (en) | 2022-08-04 | 2022-08-04 | Tram steel aluminium mixes ceiling |
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| Publication Number | Publication Date |
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| CN115158379A CN115158379A (en) | 2022-10-11 |
| CN115158379B true CN115158379B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210931333.0A Active CN115158379B (en) | 2022-08-04 | 2022-08-04 | Tram steel aluminium mixes ceiling |
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Citations (9)
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|---|---|---|---|---|
| US6220502B1 (en) * | 1997-06-20 | 2001-04-24 | Trn Business Trust | System and method for manufacturing a railcar roof |
| JP2001163217A (en) * | 1999-12-06 | 2001-06-19 | Nippon Sharyo Seizo Kaisha Ltd | Body structure for rolling stock |
| CN104015741A (en) * | 2014-06-27 | 2014-09-03 | 成都市新筑路桥机械股份有限公司 | Floating car body for 100% low-floor tramcar and assembling method of floating car body |
| CN203902558U (en) * | 2014-06-27 | 2014-10-29 | 成都市新筑路桥机械股份有限公司 | Car roof of 100% modern city tramcar |
| CN203920748U (en) * | 2014-06-27 | 2014-11-05 | 成都市新筑路桥机械股份有限公司 | A kind of floating car car body of 100% low floor tramway train |
| CN107472271A (en) * | 2017-07-31 | 2017-12-15 | 中车南京浦镇车辆有限公司 | A kind of low-floor tramcar roof end-beam arrangement |
| CN109204351A (en) * | 2018-08-21 | 2019-01-15 | 中车大连机车车辆有限公司 | Hang car roof suspension mounting structure |
| CN110667617A (en) * | 2019-10-22 | 2020-01-10 | 中铁轨道交通装备有限公司 | Head car body structure of high-floor tramcar |
| CN110733523A (en) * | 2019-10-25 | 2020-01-31 | 中铁轨道交通装备有限公司 | end beam and lower hinged mounting base structure of low-floor tramcar floating car |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020148382A1 (en) * | 2001-02-09 | 2002-10-17 | Trn Business Trust | Pultruded panel |
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2022
- 2022-08-04 CN CN202210931333.0A patent/CN115158379B/en active Active
Patent Citations (9)
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|---|---|---|---|---|
| US6220502B1 (en) * | 1997-06-20 | 2001-04-24 | Trn Business Trust | System and method for manufacturing a railcar roof |
| JP2001163217A (en) * | 1999-12-06 | 2001-06-19 | Nippon Sharyo Seizo Kaisha Ltd | Body structure for rolling stock |
| CN104015741A (en) * | 2014-06-27 | 2014-09-03 | 成都市新筑路桥机械股份有限公司 | Floating car body for 100% low-floor tramcar and assembling method of floating car body |
| CN203902558U (en) * | 2014-06-27 | 2014-10-29 | 成都市新筑路桥机械股份有限公司 | Car roof of 100% modern city tramcar |
| CN203920748U (en) * | 2014-06-27 | 2014-11-05 | 成都市新筑路桥机械股份有限公司 | A kind of floating car car body of 100% low floor tramway train |
| CN107472271A (en) * | 2017-07-31 | 2017-12-15 | 中车南京浦镇车辆有限公司 | A kind of low-floor tramcar roof end-beam arrangement |
| CN109204351A (en) * | 2018-08-21 | 2019-01-15 | 中车大连机车车辆有限公司 | Hang car roof suspension mounting structure |
| CN110667617A (en) * | 2019-10-22 | 2020-01-10 | 中铁轨道交通装备有限公司 | Head car body structure of high-floor tramcar |
| CN110733523A (en) * | 2019-10-25 | 2020-01-31 | 中铁轨道交通装备有限公司 | end beam and lower hinged mounting base structure of low-floor tramcar floating car |
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| CN115158379A (en) | 2022-10-11 |
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