CN111216748A - Roof side beam of low-floor tramcar - Google Patents
Roof side beam of low-floor tramcar Download PDFInfo
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- CN111216748A CN111216748A CN202010185226.9A CN202010185226A CN111216748A CN 111216748 A CN111216748 A CN 111216748A CN 202010185226 A CN202010185226 A CN 202010185226A CN 111216748 A CN111216748 A CN 111216748A
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- rib
- truss structure
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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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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a roof side beam of a low-floor tramcar, which comprises: the side beam comprises a side beam base body, wherein the side beam base body is formed by combining hollow-structure aluminum profiles which are formed through one-time extrusion forming, the cross section of the side beam base body is of a hollow truss structure, the hollow truss structure is composed of a vertical hollow truss structure and a transverse hollow truss structure, and the transverse hollow truss structure is integrally connected to one side of the vertical hollow truss structure and mutually forms a check square shape. Through the mode, the hollow-structure aluminum profile formed by one-time extrusion molding is adopted, a large amount of assembling, splicing and welding work is omitted, the overall structural strength of the boundary beam substrate is enhanced through the truss structure arranged in the aluminum profile, and particularly, the cross section of the boundary beam substrate is in the V-shaped hollow truss structure after combination, so that the transmission of longitudinal force and transverse force of the boundary beam substrate can be ensured, the structural strength and bearing capacity of the boundary beam substrate are effectively improved, and the boundary beam substrate simultaneously meets the requirements of high strength and light weight.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a roof side beam of a low-floor tramcar.
Background
The tramcar is one of the important tools of modern urban rail transit, the roof is one of the important component parts of the tramcar body, and various tramcar electrical equipment is carried on the roof, so the roof should meet the requirements of strength and rigidity, the edge beam is the key part of the roof, and is also the most main bearing part of the roof, and the design requirement of the vertical bearing capacity of the roof must be met, but the existing roof edge beam is generally formed by assembling and welding weather-resistant steel, in order to improve the bearing capacity of the edge beam structure, the use amount of high-strength weather-resistant steel materials is increased in welding stress concentration, the assembly and welding process is complicated, and the defects of poor fatigue performance of welding seams, heavy quality and the like exist at the same time.
Disclosure of Invention
The invention mainly solves the technical problem of providing a roof side beam of a low-floor tramcar, which is formed by combining aluminum profiles formed by one-time extrusion, saves a large amount of assembling, splicing and welding work, and enhances the integral strength of the structure through a truss structure arranged in the aluminum profiles, so that the side beam can meet the requirements of high strength and light weight.
In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a low-floor tram roof side rail comprising: the side beam comprises a side beam base body, wherein the side beam base body is formed by combining hollow-structure aluminum profiles which are formed through one-time extrusion forming, the cross section of the side beam base body is of a hollow truss structure, the hollow truss structure is composed of a vertical hollow truss structure and a transverse hollow truss structure, and the transverse hollow truss structure is integrally connected to one side of the vertical hollow truss structure and mutually forms a check square shape.
In a preferred embodiment of the invention, the vertical hollow truss structure and the transverse hollow truss structure are connected into a whole through connecting ribs.
In a preferred embodiment of the present invention, the vertical hollow truss structure includes a vertical frame body composed of a top plate, an outer upper plate, an outer lower plate, a bottom plate and an inclined plate, and a first transverse rib, a first inclined rib, a second transverse rib and a second inclined rib sequentially connected in the vertical frame body from top to bottom.
In a preferred embodiment of the present invention, the first transverse rib and the second transverse rib are parallel to the bottom plate, an included angle between the first oblique rib and the bottom plate is 58.5 °, and an included angle between the second oblique rib and the bottom plate is 62 °.
In a preferred embodiment of the present invention, the transverse hollow truss structure includes a transverse frame body composed of an upper overlapping panel, a welding table panel, a reinforcing plate, a lower overlapping panel and a lower inclined panel, and a third inclined rib, a vertical rib, a fourth inclined rib, a fifth inclined rib and a sixth inclined rib sequentially connected from left to right in the transverse frame body.
In a preferred embodiment of the present invention, the welding table panel is parallel to the overlapping lower panel, the vertical rib is perpendicular to the overlapping lower panel, an included angle between the reinforcing plate and the overlapping lower panel is 55 °, an included angle between the third tilted rib and the overlapping lower panel is 32 °, and included angles between the fourth tilted rib, the fifth tilted rib, the sixth tilted rib, and the connecting rib and the lower tilted panel are 70.5 °, 32.5 °, 76.5 °, and 48.5 °, respectively.
In a preferred embodiment of the invention, the width of the welding table panel is 22mm, the welding table panel and the left front end of the overlap joint upper panel are arranged in a ladder manner, and a connecting plate with the height of 4mm is arranged between the welding table panel and the left front end of the overlap joint upper panel.
In a preferred embodiment of the present invention, the top plate, the outer upper panel, the outer lower panel and the bottom plate are integrally formed with C-shaped grooves.
In a preferred embodiment of the present invention, the overlapping upper panel and the lower inclined panel are also integrally formed with C-shaped grooves.
The invention has the beneficial effects that: the boundary beam is formed by combining hollow aluminum profiles which are extruded at one time, a large amount of assembling, splicing and welding work is saved, the overall structural strength of a boundary beam substrate is enhanced through a truss structure which is arranged in the aluminum profiles, particularly, the cross section of the boundary beam substrate is in a V-shaped hollow truss structure after combination, the transmission of longitudinal force and transverse force of the boundary beam substrate can be ensured, and the structural strength and bearing capacity of the boundary beam substrate are effectively improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a roof side rail of a low-floor tram according to the present invention;
the parts in the drawings are numbered as follows: 100. boundary beam base member, 11, splice bar, 12, roof, 13, outside top panel, 14, panel under the outside, 15, bottom plate, 16, slant panel, 17, first horizontal muscle, 18, first diagonal muscle, 19, the horizontal muscle of second, 20, the second diagonal muscle, 21, overlap joint top panel, 22, welding bench panel, 23, reinforcing plate, 24, panel under the overlap joint, 25, lower diagonal panel, 26, the third diagonal muscle, 27, vertical muscle, 28, the fourth diagonal muscle, 29, fifth diagonal muscle, 30, sixth diagonal muscle, 31, the connecting plate.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Referring to fig. 1, the present invention includes:
a low-floor tram roof side rail comprising: the side beam comprises a side beam base body 100, wherein the side beam base body 100 is formed by combining hollow-structure aluminum profiles which are formed through one-time extrusion forming, the side beam base body is formed by combining and welding a group of aluminum profiles which are horizontally arranged along the longitudinal direction and a group of aluminum profiles which are vertically arranged along the longitudinal direction, the cross section of the side beam base body 100 is of a hollow truss structure, the hollow truss structure is composed of a vertical hollow truss structure and a transverse hollow truss structure, and the transverse hollow truss structure is integrally connected to one side of the vertical hollow truss structure and mutually forms a hook-shaped shape.
Specifically, the vertical hollow truss structure and the transverse hollow truss structure are connected into a whole through the connecting ribs 11.
With continued reference to fig. 1, the vertical hollow truss structure includes a vertical frame body composed of a top plate 12, an outer upper surface plate 13, an outer lower surface plate 14, a bottom plate 15, and an oblique surface plate 16, and a first transverse rib 17, a first oblique rib 18, a second transverse rib 19, and a second oblique rib 20 sequentially connected from top to bottom in the vertical frame body, and the vertical hollow truss structure forms a longitudinal force transmission of the side sill base body 100.
The first transverse rib 17, the second transverse rib 19 and the bottom plate 15 are parallel, the first inclined rib 18, the second inclined rib 20 and the included angle of the bottom plate are respectively 58.5 degrees and 62 degrees, the structural design is adopted, and the requirements on the vertical strength and the rigidity of the boundary beam base body 100 are met.
Horizontal hollow truss structure includes the horizontal framework of being constituteed by overlap joint top panel 21, welding bench panel 22, reinforcing plate 23, overlap joint lower panel 24, lower scarf 25 to and from left to right connect gradually third diagonal rib 26, vertical muscle 27, fourth diagonal rib 28, fifth diagonal rib 29, sixth diagonal rib 30 in the horizontal framework, horizontal hollow truss structure forms the horizontal power transmission of boundary beam base member 100.
Wherein, the welding bench panel 22 with the panel 24 is parallel under the overlap joint, vertical muscle 27 with the panel 24 is mutually perpendicular under the overlap joint, reinforcing plate 23 with the contained angle of panel 24 is 55 under the overlap joint, the third tilted rib 26 with the contained angle of panel 24 is 32 under the overlap joint, fourth tilted rib 28, fifth tilted rib 29, sixth tilted rib 30, splice bar 11 with the contained angle of panel 25 is 70.5 °, 32.5 °, 76.5 °, 48.5 respectively down, adopts such structural design, has guaranteed the horizontal intensity of boundary beam base member 100 and rigidity requirement.
In this embodiment, in order to facilitate the welding and overlapping in the manufacturing process, the width of the welding table panel 22 is 22mm, the welding table panel 22 and the left front end of the overlapping upper panel 21 are arranged in a ladder manner, and a connecting plate 31 with a height of 4mm is welded between the welding table panel 22 and the left front end of the overlapping upper panel 21.
In addition, in order to facilitate the installation of the roof exterior and interior devices, C-shaped grooves are integrally formed in the top plate 12, the outer upper panel 13, the outer lower panel 14, the bottom plate 15, the lap upper panel 21, and the lower sloping panel 25, and are arranged along the entire length of the respective plate surfaces, and the positions of the C-shaped grooves on the top plate 12, the outer upper panel 13, the outer lower panel 14, the bottom plate 15, the lap upper panel 21, and the lower sloping panel 25 can be set according to actual conditions.
Preferably, the width of the notch of the C-shaped groove is 9mm, and the width of the inner cavity is 16 mm.
In this embodiment, in order to further ensure the overall structural strength and rigidity of the edge beam base 100, the thickness of the plate outside the edge beam base 100 is greater than the thickness of the internal diagonal rib, specifically, in the longitudinal hollow truss structure, the thickness of the bottom plate 15 is 3.5mm, the thickness of the outer lower panel 14 is 7.5mm, the thickness of the outer upper panel 13 is 6mm, the thickness of the top plate 12 is 5mm, the thicknesses of the first transverse rib 17 and the second transverse rib 19 are 3mm, and the thicknesses of the first diagonal rib 18, the second diagonal rib 20 and the connecting rib 11 are all 2.5 mm; in the horizontal hollow structure, the thickness of the frame panel is 3.5mm, and the thickness of the plurality of inclined ribs is 2.5 mm.
In conclusion, the side beam is formed by combining hollow-structure aluminum profiles formed by one-time extrusion, a large amount of assembling, splicing and welding work is omitted, the overall structural strength of the side beam base body is enhanced through the truss structure arranged in the aluminum profiles, particularly, the cross section of the side beam base body after combination is in a V-shaped hollow truss structure, the transmission of longitudinal force and transverse force of the side beam base body can be ensured, and the structural strength and the bearing capacity are effectively improved.
In addition, the side beam of the low-floor tramcar roof is also integrally provided with a plurality of C-shaped grooves, so that the installation of external and internal equipment on the roof is facilitated.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used for convenience of description and simplicity of description only, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A low-floor tram roof side rail comprising: the side beam comprises a side beam base body which is formed by combining hollow-structure aluminum profiles formed through one-time extrusion forming, and is characterized in that the cross section of the side beam base body is of a hollow truss structure, the hollow truss structure is composed of a vertical hollow truss structure and a transverse hollow truss structure, and the transverse hollow truss structure is integrally connected to one side of the vertical hollow truss structure and mutually forms a check mark shape.
2. The low-floor tram roof side rail of claim 1, wherein the vertical hollow truss structure and the transverse hollow truss structure are integrally connected by a connector rib.
3. The roof side rail of low-floor tram as claimed in claim 2, wherein the vertical hollow truss structure comprises a vertical frame body composed of a top plate, an outer upper plate, an outer lower plate, a bottom plate and an inclined plate, and a first transverse rib, a first inclined rib, a second transverse rib and a second inclined rib which are connected in the vertical frame body from top to bottom in sequence.
4. The low-floor tram roof side rail of claim 3 wherein the first and second cross ribs are parallel to the floor, the first angled rib forms an angle of 58.5 ° with the floor, and the second angled rib forms an angle of 62 ° with the floor.
5. The low-floor tram roof side rail of claim 2, wherein the transverse hollow truss structure comprises a transverse frame body consisting of an upper overlapping panel, a welding table panel, a reinforcing plate, a lower overlapping panel and a lower inclined panel, and a third inclined rib, a vertical rib, a fourth inclined rib, a fifth inclined rib and a sixth inclined rib which are sequentially connected in the transverse frame body from left to right.
6. The roof side rail of a low-floor tramcar according to claim 5, characterized in that the welded deck is parallel to the lap joint lower panel, the vertical rib is perpendicular to the lap joint lower panel, the reinforcement plate has an angle of 55 ° with the lap joint lower panel, the third tilted rib has an angle of 32 ° with the lap joint lower panel, and the angles of the fourth tilted rib, the fifth tilted rib, the sixth tilted rib, and the connecting rib with the lap joint lower panel are 70.5 °, 32.5 °, 76.5 °, and 48.5 °, respectively.
7. The low-floor tram roof side rail of claim 5, characterized in that the width of the welding deck is 22mm, the welding deck is arranged in a step arrangement with the left front end of the overlap upper panel, and a connecting plate with a height of 4mm is provided between the welding deck and the left front end of the overlap upper panel.
8. The low-floor tram roof side rail of claim 3 or 4, wherein the top plate, the outer upper panel, the outer lower panel and the bottom plate are all integrally formed with C-shaped grooves.
9. The roof side rail for a low-floor tram as claimed in claim 5, 6 or 7, wherein the overlapping upper panel and the lower inclined panel are also integrally formed with C-shaped grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010185226.9A CN111216748A (en) | 2020-03-17 | 2020-03-17 | Roof side beam of low-floor tramcar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010185226.9A CN111216748A (en) | 2020-03-17 | 2020-03-17 | Roof side beam of low-floor tramcar |
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| Publication Number | Publication Date |
|---|---|
| CN111216748A true CN111216748A (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010185226.9A Pending CN111216748A (en) | 2020-03-17 | 2020-03-17 | Roof side beam of low-floor tramcar |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202541540U (en) * | 2011-12-27 | 2012-11-21 | 南车南京浦镇车辆有限公司 | Roof rail of passenger car |
| CN103921802A (en) * | 2014-05-06 | 2014-07-16 | 唐山轨道客车有限责任公司 | Car roof device and low floor tramcar |
| CN204355058U (en) * | 2014-12-25 | 2015-05-27 | 南车青岛四方机车车辆股份有限公司 | Guideway vehicle side top mounting structure and guideway vehicle |
| CN107901937A (en) * | 2017-10-11 | 2018-04-13 | 青岛四方庞巴迪铁路运输设备有限公司 | Rail vehicle aluminum alloy vehicle body boundary beam integrated design and processing method |
| CN208360180U (en) * | 2018-06-27 | 2019-01-11 | 中车株洲电力机车研究所有限公司 | A kind of rail vehicle aluminium top cover side bar |
-
2020
- 2020-03-17 CN CN202010185226.9A patent/CN111216748A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202541540U (en) * | 2011-12-27 | 2012-11-21 | 南车南京浦镇车辆有限公司 | Roof rail of passenger car |
| CN103921802A (en) * | 2014-05-06 | 2014-07-16 | 唐山轨道客车有限责任公司 | Car roof device and low floor tramcar |
| CN204355058U (en) * | 2014-12-25 | 2015-05-27 | 南车青岛四方机车车辆股份有限公司 | Guideway vehicle side top mounting structure and guideway vehicle |
| CN107901937A (en) * | 2017-10-11 | 2018-04-13 | 青岛四方庞巴迪铁路运输设备有限公司 | Rail vehicle aluminum alloy vehicle body boundary beam integrated design and processing method |
| CN107901937B (en) * | 2017-10-11 | 2019-08-16 | 青岛四方庞巴迪铁路运输设备有限公司 | Rail vehicle aluminum alloy vehicle body boundary beam integrated design and processing method |
| CN208360180U (en) * | 2018-06-27 | 2019-01-11 | 中车株洲电力机车研究所有限公司 | A kind of rail vehicle aluminium top cover side bar |
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Application publication date: 20200602 |
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