CN103625492B - Aluminum alloy bodywork of rail vehicle hanging beam - Google Patents
Aluminum alloy bodywork of rail vehicle hanging beam Download PDFInfo
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- CN103625492B CN103625492B CN201210310620.6A CN201210310620A CN103625492B CN 103625492 B CN103625492 B CN 103625492B CN 201210310620 A CN201210310620 A CN 201210310620A CN 103625492 B CN103625492 B CN 103625492B
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- crossbeam
- aluminum alloy
- rail vehicle
- hanging beam
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Abstract
The present invention relates to a kind of aluminum alloy bodywork of rail vehicle hanging beam, the longitudinal beam welding connection that the crossbeam being parallel to each other by least two and at least two are parallel to each other forms frame structure, the two ends of described longeron are welded to connect the inner side at two end floor beams, and the lateral surface of described longeron is in same plane with the end face of described crossbeam.Hanging beam of the present invention uses the tower structure being welded to connect, overall rigidity is higher with mechanical strength, and the lateral surface of the both ends of the surface of crossbeam and longeron is all welded to connect with edge beam of underframe, form the attachment structure of integration, significantly increase weld seam area, i.e. loaded area to increase, can significantly reduce weld stress at this, weld stress compared with prior art can reduce about 45MPa, increases substantially its fatigue life.
Description
Technical field
The present invention relates to a kind of in high speed railway car for hanging the hanging beam structure of tractive transformer, special pin
Hanging beam structure to aluminum alloy bodywork, belongs to mechanical manufacturing field.
Background technology
The most domestic rail vehicle speed per hour come into operation has reached more than 300 kilometers, when vehicle is more than 300 kilometers
Speed per hour scope run time, the stressing conditions of tractive transformer hanging beam is complex, for tractive transformer hang
The performance indications such as the structural strength of beam require more and more higher.
The hanging beam intensity of existing high speed railway car, it is desirable to must be fulfilled for European standard EN12663:2010, with
Time also should have enough safety allowances.Tractive transformer hanging beam as a main load bearing component of body construction,
Its intensity, rigidity and fatigue strength index seem and are even more important.
For emphasizing to occur under improper load working condition, hanging beam can not occur fracture accident, i.e. requires tractive transformer
Hanging beam can bear damage acceleration load and the tired load of nominal situation that EN12663-2010 standard specifies
Lotus.
During rail vehicle is run at high speed, owing to the change of circuit needs different speed class to pass through, therefore car
Need to brake continually and accelerate, the acceleration load ratio causing hanging beam to be born is relatively frequent, its dynamic stress also than
More complicated.
When tractive transformer weight is bigger, the inertia force produced due to acceleration is very big, and hanging beam can produce very
Big dynamic stress and dynamic displacement.The weight of existing tractive transformer has reached 6 tons, simultaneously by metal material beam
How the limitation of body structure, reach and meet European standard EN12663:2010, is that existing hot-short car body sets
The main difficult technical that meter is faced.
For solving the problems referred to above and deficiency, Patent No. 201010582356.2 " railway vehicle tractive transformer hangs
Drop in beam " patent, have employed the hanging beam structure of frame-type, be made up of, at horizontal stroke 3 crossbeams and 4 longitudinal beam weldings
Connect between beam and longeron and have stiffening plate.Although this structure improve to a certain extent hanging beam bulk strength and
Rigidity, but it is less than normal to there is also weld seam area between crossbeam, longeron and edge beam of underframe, the deficiency that weld stress is big, this
Application is the improvement carried out for existing hanging beam structure.
Summary of the invention
Present invention is primarily aimed at solution the problems referred to above and deficiency, it is provided that one can effectively reduce weld stress, greatly
Amplitude improves the aluminum alloy bodywork of rail vehicle hanging beam of fatigue life.
For achieving the above object, the technical scheme is that
A kind of aluminum alloy bodywork of rail vehicle hanging beam, at least two the crossbeam being parallel to each other and two are parallel to each other
Longitudinal beam welding connect and form frame structure, the two ends of described longeron are welded to connect the inner side at two end floor beams, middle
The two ends of crossbeam are welded to connect on the medial surface of two described longerons, and the lateral surface of described longeron is horizontal with described in two ends
The end face of beam is in same plane, the end face of crossbeam described in the lateral surface of described longeron and two ends all with described underframe
Side bar welding connects, and tractive transformer is hung on described longeron.
Further, between described two adjacent described crossbeams, it is provided with at least one needle beam, described needle beam
Be arrangeding in parallel with described crossbeam, the two ends of described needle beam are weldingly fixed on described longeron.
Further, the section of described needle beam is H type.
Further, described crossbeam is the section hollow beam in duplex font.
Further, described crossbeam is the hollow beam that section is compound with chute in duplex word.
Further, described longeron be section be the hollow beam of twoport type.
Further: described longeron is the section hollow beam that to be twoport type compound with chute, and described chute is positioned at described vertical
The edge of beam.
Further, described longeron is the section hollow beam that to be twoport type compound with chute, and described chute is located therein one
The middle position, base of the individual described shape of the mouth as one speaks.
Further, the width of described longeron is 380-440mm.
To sum up content, a kind of aluminum alloy bodywork of rail vehicle hanging beam of the present invention, compared with prior art,
Have the advantage that
(1) hanging beam uses the tower structure being welded to connect, and overall rigidity is higher with mechanical strength, it is possible to reach
The use requirement bearing damage load required to European standard, meanwhile, load can balancedly be distributed to
On crossbeam, longeron, thus reduce crossbeam, the stress level of the independent structure of longeron, it is possible to increase hanging beam tired
The labor life-span.
(2) both ends of the surface of crossbeam are all welded to connect with edge beam of underframe with the lateral surface of longeron, form the connection of integration
Structure, significantly increases weld seam area, i.e. loaded area and increases, can significantly reduce weld stress at this,
Weld stress compared with prior art can reduce about 45MPa, increases substantially its fatigue life.
(3) compared with prior art, increase the cross-sectional area of longeron, and then make the weld seam between longeron and crossbeam
Area increases a lot, and the weld stress at this compared with prior art can reduce about 26MPa, improves it further tired
The labor life-span.
(4) frame structure is aided with needle beam to strengthen so that the intensity of hanging beam entirety is improved, and reaches
Bear the acceleration load that EN12663 standard specifies, it addition, by the setting of multiple needle beams, it is also possible to strengthen
The rigidity on floor, reduces the vibrating noise at this.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention one structural representation；
Fig. 2 is the structural representation after the embodiment of the present invention one is welded with edge beam of underframe；
Fig. 3 is the embodiment of the present invention one crossbeam section structure schematic diagram；
Fig. 4 is the embodiment of the present invention one longeron section structure schematic diagram；
Fig. 5 is the embodiment of the present invention one needle beam section structure schematic diagram；
Fig. 6 is the embodiment of the present invention two longeron section structure schematic diagram；
Fig. 7 is the embodiment of the present invention three longeron section structure schematic diagram；
Fig. 8 is the embodiment of the present invention four crossbeam section structure schematic diagram；
Fig. 9 is the embodiment of the present invention five hanging beam structural representation.
As shown in Figures 1 to 9, crossbeam 1, longeron 2, needle beam 3, hang hole 4, chute 5, edge beam of underframe 6.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings:
Embodiment one:
As depicted in figs. 1 and 2, a kind of aluminum alloy bodywork of rail vehicle hanging beam, it is positioned at the traction under car for hanging
Transformer, hanging beam is welded to connect with the edge beam of underframe 6 of car body.
Hanging beam is frame structure, at least two the longeron 2 that the crossbeam 1 being parallel to each other and at least two are parallel to each other
Being welded to connect formation, frame structure entirety is rectangle.Above-mentioned longeron 2 and the definition of crossbeam 1, be according to when installing
With car body divide in vertical or horizontal direction.In order to reduce the weight of whole hanging beam, meet high-speed track
The light-weighted requirement of vehicle, can meet again the integrated carrying ability of hanging beam simultaneously, and crossbeam 1 and longeron 2 all use aluminium
Alloy hollow material structure.
As depicted in figs. 1 and 2, in the present embodiment, it is preferable that the frame structure of hanging beam is by 3 horizontal strokes being parallel to each other
Beam 1 and 2 longerons being parallel to each other 2 are made of welded connection, 2 elongated settings of longeron 2, the two ends weldering of 2 longerons 2
Being connected in succession on the medial surface of both sides crossbeam 1, the two ends of middle 1 crossbeam 1 are welded to connect the medial surface at 2 longerons 2
On.
For ensureing under bigger load-up condition, crossbeam 1 and longeron 2 have good counter-bending, anti-torsion performance, as
Shown in Fig. 3, in the present embodiment, it is preferable that the hollow beam that crossbeam 1 uses section to be duplex word, and crossbeam 1 is preferably adopted
With the higher A7N01S-T5 section bar of intensity.As shown in Figure 4, longeron 2 preferably employs the hollow beam that section is twoport type,
Longeron 2 preferably employs the A6N01S-T5 section bar that toughness is higher, to fully ensure that its strength and stiffness.
Two end faces of 2 crossbeams 1 of both sides are welded to connect with edge beam of underframe 6, and the section configuration of duplex word can increase
Bonding area, and then can effectively reduce the weld stress of edge beam of underframe 6, improve fatigue strength.It is positioned at the crossbeam of centre
1 be also adopted by section be duplex word hollow beam, can increase with longeron 1 inside bonding area, and then reduce longeron 2
Weld stress with crossbeam 1.
The both ends of the surface of longeron 2 are welded to connect with the medial surface of the crossbeam 1 of both sides, use twoport type hollow beam can make longeron 2
Simple with welding between crossbeam 1, and weld seam transitions smooth, stress is concentrated relatively low, and increases the disconnected of longeron 2
Face area, and then it is a lot of to make the weld seam area between longeron 2 and crossbeam 1 increase, the weld stress at this and existing skill
Art is compared and can be reduced about 26MPa, improves its fatigue life further.
Verifying through lot of experiments, the width of longeron 2 is preferably 380-440mm, and the width of longeron 2 is more preferably
400-420mm, in this width range, on the premise of can guarantee that longeron 2 is relatively low with the weld stress of crossbeam 1, makes to indulge
The weight of beam 2 is minimum, and then meets the lightweight requirements of high speed railway car.
The solder side of edge beam of underframe 6 (i.e. with) is in the end face of crossbeam 1 as it is shown in figure 1, the lateral surface of 2 longerons 2
In same plane.So, when welding with edge beam of underframe 6, the both ends of the surface of crossbeam 1 with and longeron 2 lateral surface all with
Edge beam of underframe is welded to connect, crossbeam 1 and longeron 2 formed integration attachment structure, significantly increase hanging beam with
Weld seam area between edge beam of underframe 6, i.e. increases the loaded area of weld seam, verifies through lot of experiments, this kind of weldering
Connecing connected mode, can significantly reduce weld stress, weld stress compared with prior art can reduce about 45MPa,
And then realize increasing substantially its fatigue life.Additionally, when welding with edge beam of underframe 6, boxing technique can be used
Welding, technique is simple, good manufacturability, the overall Automation of Welding level that improves, welding efficiency height.
Tractive transformer is hung on longeron 2, is provided with the hanging hole 4 for hanging transformer on longeron 2, traction
Transformer is connected by multiple bolts are fixing with hanging hole 4.In the present embodiment, longeron 2 uses section to be twoport type
Hollow beam, hanging hole 4 is opened on the base of one of them shape of the mouth as one speaks.Hanging hole 4 can be slotted hole, a hanging
The fixing connection of multiple bolt it is simultaneously used on hole 4.
Owing to the spacing between 3 crossbeams 1 is relatively big, cause its ground panel stiffness connected relatively low, as depicted in figs. 1 and 2,
Being provided with at least one needle beam 3 between two adjacent crossbeams 1, needle beam 3 be arranged in parallel with crossbeam 1, little horizontal stroke
The two ends of beam 3 are welded to connect on the medial surface of longeron 2, after needle beam 3 welding, and its upper surface and crossbeam 1, longeron 2
Upper surface be in same plane.As it is shown in figure 5, the section of needle beam 3 is H type, this section can ensure little horizontal stroke
On the premise of beam 3 weight is less, it is ensured that the rigidity of needle beam 3.In the present embodiment, separated by intermediate transverse girder 1
In two frame spaces, being respectively arranged with 3 needle beams 3 and 2 needle beams 3, multiple needle beams 3 are uniformly distributed, little
Spacing between crossbeam 3 is about about 600mm.
The setting of needle beam 3, can further enhance the strength and stiffness of whole hanging beam, makes hanging beam reach to bear
The acceleration load that EN12663 standard specifies, it is also possible to increase the rigidity being welded on the floor above hanging beam,
Avoid floor vibration, reduce floor vibration noise.
Hanging beam uses this kind of frame structure, and overall rigidity is higher with mechanical strength, it is possible to reaches European standard and wants
The use requirement bearing damage load asked, meanwhile, load can balancedly be distributed to multiple crossbeam 1, indulge
On beam 2 and needle beam 3, thus reduce crossbeam 1, the stress level of the independent structure of longeron 2, it is possible to increase hanging beam
Fatigue life.
Embodiment two:
As shown in Figure 6, longeron 2 uses section to be the hollow beam that twoport type is combined with chute, and chute 5 is positioned at longeron 2 one
The edge bottom of side.Being no longer necessary on this longeron 2 additionally offer hanging hole 4, chute 5 itself is hanging hole, multiple
Bolt slides in chute 5, in position fastens, and then fixed traction transformer.This longeron 2 hangs form letter
Single, the beneficially assembling of transformer.
Embodiment three:
As it is shown in fig. 7, longeron 2 uses section to be the hollow beam that twoport type is combined with chute, chute 5 is located in one of
The middle position, base of the shape of the mouth as one speaks.Being no longer necessary on this longeron 2 additionally offer hanging hole 4, chute 5 itself is hanging hole,
Multiple bolts slide in chute 5, in position fasten, and then fixed traction transformer.It is identical with embodiment two,
This longeron 2 hangs form simply, the beneficially assembling of transformer.
Embodiment four:
As shown in Figure 8, crossbeam 1 uses section to be the duplex word hollow beam compound with chute, removes and possesses embodiment one
Outside described feature, also help equipment of hanging in the lower section of crossbeam 1.
Embodiment five:
As it is shown in figure 9, the frame structure of hanging beam is welded by 2 crossbeams 1 being parallel to each other and 2 longerons 2 being parallel to each other
Connecing and be formed by connecting, the two ends of 2 longerons 2 are welded to connect the inner side at two end floor beams 1, and the lateral surface of 2 longerons 2 is (i.e.
Solder side with edge beam of underframe 6) it is in same plane with the end face of crossbeam 1, between two crossbeams 1, arrange 3
Needle beam 3, the spacing between needle beam 3 is about 600mm, is arranged on for hanging the hanging hole 4 of tractive transformer
On longeron 2.
As it has been described above, combine the plan content given by accompanying drawing, similar technical scheme can be derived.In every case it is
Without departing from the content of technical solution of the present invention, any letter above example made according to the technical spirit of the present invention
Single amendment, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (9)
1. an aluminum alloy bodywork of rail vehicle hanging beam, it is characterised in that: by three crossbeams being parallel to each other and two
The individual longitudinal beam welding being parallel to each other connects formation frame structure, and the two ends of described longeron are welded to connect at two end floor beams
Inner side, the two ends of middle 1 crossbeam are welded to connect on the medial surface of two described longerons, the lateral surface of described longeron
It is in same plane with the end face of crossbeam described in two ends, the end face of crossbeam described in the lateral surface of described longeron and two ends
All being welded to connect with edge beam of underframe, tractive transformer is hung on described longeron.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: adjacent
Being provided with at least one needle beam between two described crossbeams, described needle beam be arranged in parallel with described crossbeam, described
The two ends of needle beam are weldingly fixed on described longeron.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 2, it is characterised in that: described little horizontal stroke
The section of beam is H type.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: described crossbeam
For the section hollow beam in duplex font.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: described crossbeam
For the hollow beam that section is compound with chute in duplex word.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: described longeron
It is the hollow beam of twoport type for section.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: described longeron
Being the twoport type hollow beam compound with chute for section, described chute is positioned at the edge of described longeron.
Aluminum alloy bodywork of rail vehicle hanging beam the most according to claim 1, it is characterised in that: described longeron
Being the twoport type hollow beam compound with chute for section, described chute is located in one of the base central authorities of the described shape of the mouth as one speaks
Position.
9. according to the aluminum alloy bodywork of rail vehicle hanging beam described in any one of claim 6-8, it is characterised in that:
The width of described longeron is 380-440mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210310620.6A CN103625492B (en) | 2012-08-29 | 2012-08-29 | Aluminum alloy bodywork of rail vehicle hanging beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310620.6A CN103625492B (en) | 2012-08-29 | 2012-08-29 | Aluminum alloy bodywork of rail vehicle hanging beam |
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| CN103625492A CN103625492A (en) | 2014-03-12 |
| CN103625492B true CN103625492B (en) | 2016-09-07 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105035112B (en) * | 2015-07-08 | 2018-04-03 | 中车南京浦镇车辆有限公司 | A kind of hanging structure for jumbo |
| CN106080623B (en) * | 2016-06-08 | 2019-01-15 | 中车唐山机车车辆有限公司 | Apparatus installation system and rail vehicle under vehicle |
| CN112026815B (en) * | 2020-08-05 | 2022-02-15 | 中车青岛四方机车车辆股份有限公司 | Rail vehicle equipment hanging frame, rail vehicle body underframe and rail vehicle |
| CN112605494A (en) * | 2020-12-29 | 2021-04-06 | 青岛联诚宏达轨道交通设备有限公司 | Assembly welding process for intercity vehicle main hanging beam and intercity vehicle main hanging beam |
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| CN202806775U (en) * | 2012-08-29 | 2013-03-20 | 南车青岛四方机车车辆股份有限公司 | Railway vehicle aluminum alloy car body hanging beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0624928B2 (en) * | 1985-08-02 | 1994-04-06 | 株式会社日立製作所 | Vehicle structure and manufacturing method thereof |
| JP2575733B2 (en) * | 1987-09-18 | 1997-01-29 | 財団法人 鉄道総合技術研究所 | Vehicle underframe |
| JP2000203423A (en) * | 1999-01-13 | 2000-07-25 | Hitachi Ltd | High-speed rail car structure |
| AT408644B (en) * | 1999-11-17 | 2002-01-25 | Siemens Sgp Verkehrstech Gmbh | BASE FOR A RAIL VEHICLE |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201573656U (en) * | 2009-10-14 | 2010-09-08 | 南车株洲电力机车有限公司 | Mounting beam of transformer of electric locomotive |
| CN101797920A (en) * | 2010-04-26 | 2010-08-11 | 永济新时速电机电器有限责任公司 | Hanging device for traction auxiliary power supply all-in-one converter of motor train unit |
| CN102543363A (en) * | 2010-12-10 | 2012-07-04 | 南车青岛四方机车车辆股份有限公司 | Railway vehicle tractive transformer hanging beam |
| CN201914253U (en) * | 2011-01-05 | 2011-08-03 | 株洲联诚集团有限责任公司 | Integrated cooling device for high-speed train |
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