CN202806775U - Railway vehicle aluminum alloy car body hanging beam - Google Patents

Railway vehicle aluminum alloy car body hanging beam Download PDF

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Publication number
CN202806775U
CN202806775U CN201220432620.9U CN201220432620U CN202806775U CN 202806775 U CN202806775 U CN 202806775U CN 201220432620 U CN201220432620 U CN 201220432620U CN 202806775 U CN202806775 U CN 202806775U
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China
Prior art keywords
longeron
aluminum alloy
hanging beam
rail vehicle
crossbeam
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Expired - Lifetime
Application number
CN201220432620.9U
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Chinese (zh)
Inventor
孙现亮
孙维光
郑伟
卢衍祥
李兵
田爱琴
丁叁叁
周建乐
龚明
马云双
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CRRC Qingdao Sifang Co Ltd
Original Assignee
CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
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Application filed by CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd filed Critical CSR Qingdao Sifang Locomotive and Rolling Stock Co Ltd
Priority to CN201220432620.9U priority Critical patent/CN202806775U/en
Application granted granted Critical
Publication of CN202806775U publication Critical patent/CN202806775U/en
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Abstract

The utility model relates to a railway vehicle aluminum alloy car body hanging beam. The frame structure is formed by connecting at least two parallel horizontal beams with at least two parallel vertical beams in a welded mode, wherein two ends of each vertical beam are connected with the inner sides of the horizontal beams which are placed at two sides of the vertical beams, and the outer side faces of the vertical beams and the end faces of the horizontal beams are in the same plane. By adopting a frame type structure in a welded connection, overall stiffness and mechanical strength are high, and two end faces of the horizontal beams and the outer side faces of the vertical faces are all connected with under frame boundary beams in the welded mode to form an integrated connecting structure, welded joint area is greatly increased, and thereby bearing area is increased, weld stress of the bearing area can be obviously reduced, the weld stress can be reduced by about 45 MP a compared with the prior art and fatigue life can be greatly prolonged.

Description

The aluminum alloy bodywork of rail vehicle hanging beam
Technical field
The utility model relates to a kind of hanging beam structure hang traction transformer of being used in high speed railway car, for the hanging beam structure of aluminum alloy bodywork, belong to mechanical manufacturing field especially.
Background technology
The guideway vehicle speed per hour of present domestic place in operation has reached more than 300 kilometers, when vehicle when the speed per hour scope more than 300 kilometers is moved, the stressing conditions of traction transformer hanging beam is comparatively complicated, and is also more and more higher for the performance figure such as the structural strength requirement of traction transformer hanging beam.
The hanging beam intensity of existing high speed railway car, requirement must be satisfied European standard-EN12663:2010, also enough safety allowances should be arranged simultaneously.The traction transformer hanging beam is as a main load bearing component of body construction, and its intensity, rigidity and strength at repeated alternation index seem and be even more important.
For emphasizing to occur under the improper load working condition, hanging beam can not the fracture accident, namely requires the traction transformer hanging beam can bear the damage acceleration/accel load of EN12663-2010 standard code and the fatigue load of nominal situation.
Guideway vehicle is run at high speed in the process, because the variation of circuit needs different speed class to pass through, so vehicle needs continually braking and accelerate, and the acceleration/accel load ratio that causes hanging beam to bear is more frequent, and its dynamic stress is more complicated also.
When traction transformer weight was larger, because the force of inertia that acceleration/accel produces is very large, hanging beam can produce very large dynamic stress and moving displacement.The weight of existing traction transformer has reached 6 tons, is subject to simultaneously the limitation of metal material girder construction, and how to reach and satisfy European standard-EN12663:2010, be the main difficult technical that existing hot-short car body design faces.
For addressing the above problem and deficiency, the patent No. is " hanging beam of traction transformer of rail vehicle " patent of 201010582356.2, adopt the hanging beam structure of frame-type, formed by 3 crossbeams and 4 longitudinal beam weldings, between crossbeam and longeron, be connected with stiffening plate.Although this structure has improved bulk strength and the rigidity of hanging beam to a certain extent, also exist between crossbeam, longeron and the edge beam of underframe weld seam area less than normal, the deficiency that weld stress is large, the application are the improvement of carrying out for existing hanging beam structure.
The utility model content
The utility model main purpose is to address the above problem and is not enough, and providing a kind of can effectively reduce weld stress, increases substantially the aluminum alloy bodywork of rail vehicle hanging beam of fatigue life.
For achieving the above object, the technical solution of the utility model is:
A kind of aluminum alloy bodywork of rail vehicle hanging beam, be connected to form framed structure by at least two crossbeams that are parallel to each other and at least two longitudinal beam weldings that are parallel to each other, the two ends of described longeron are welded to connect in the inboard of two end floor beams, and the lateral surface of described longeron and the end face of described crossbeam are in the same plane.
Further, described framework is formed by 3 described crossbeams and 2 described longitudinal beam weldings, and the two ends of middle 1 crossbeam are welded to connect on the medial surface of 2 described longerons, and traction transformer is hung on described longeron.
Further, be provided with at least one needle beam between described two adjacent described crossbeams, described needle beam and described crossbeam be arranged in parallel, and the two ends of described needle beam are weldingly fixed on the described longeron.
Further, the section of described needle beam is the H type.
Further, described crossbeam is the hollow beam that section is duplexing font.
Further, described crossbeam is the hollow beam that section is duplexing word and chute compound type.
Further, described longeron is the hollow beam that section is the twoport type.
Further: described longeron is that section is the compound hollow beam of twoport type and chute, and described chute is positioned at the edge of described longeron.
Further, described longeron is that section is the compound hollow beam of twoport type and chute, and described chute is positioned at the base middle position of one of them described shape of the mouth as one speaks.
Further, the width of described longeron is 380-440mm.
Content to sum up, a kind of aluminum alloy bodywork of rail vehicle hanging beam described in the utility model compared with prior art, has following advantage:
(1) hanging beam adopts the tower structure that is welded to connect, whole rigidity and mechanical strength are higher, can reach the operating needs that bears damage load that European standard requires, simultaneously, load can balancedly be distributed on crossbeam, the longeron, thereby reduced the stress level of crossbeam, the independent structure of longeron, the fatigue life that can improve hanging beam.
(2) lateral surface of the both ends of the surface of crossbeam and longeron all is welded to connect with edge beam of underframe, form integrated connection structure, significantly increased the weld seam area, be that loaded area increases, can significantly reduce this place's weld stress, weld stress compared with prior art can reduce about 45MPa, increases substantially its fatigue life.
(3) compared with prior art, strengthened the cross-sectional area of longeron, and then the weld seam area between longeron and the crossbeam is increased a lot, the weld stress at this place compared with prior art can reduce about 26MPa, further improves its fatigue life.
(4) be aided with needle beam in the framed structure and strengthen, so that the intensity of hanging beam integral body is improved, reach the acceleration/accel load of bearing the EN12663 standard code, in addition, by the setting of a plurality of needle beams, can also strengthen the rigidity on floor, reduce the vibrating noise at this place.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation;
Fig. 2 is the structural representation after the utility model embodiment one welds with edge beam of underframe;
Fig. 3 is the utility model embodiment one crossbeam section structure scheme drawing;
Fig. 4 is the utility model embodiment one longeron section structure scheme drawing;
Fig. 5 is the utility model embodiment one needle beam section structure scheme drawing;
Fig. 6 is the utility model embodiment two longeron section structure scheme drawings;
Fig. 7 is the utility model embodiment three longeron section structure scheme drawings;
Fig. 8 is the utility model embodiment four crossbeam section structure scheme drawings;
Fig. 9 is the utility model embodiment five hanging beam structural representations.
Extremely shown in Figure 9 such as Fig. 1, crossbeam 1, longeron 2, needle beam 3 is hung hole 4, chute 5, edge beam of underframe 6.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the utility model is described in further detail:
Embodiment one:
As depicted in figs. 1 and 2, a kind of aluminum alloy bodywork of rail vehicle hanging beam is used for hanging the traction transformer that is positioned under the car, and the edge beam of underframe 6 of hanging beam and car body is welded to connect.
Hanging beam is framed structure, is welded to connect by at least two crossbeams that are parallel to each other 1 and at least two longerons that are parallel to each other 2 to form, and framed structure integral body is rectangle.The definition of above-mentioned longeron 2 and crossbeam 1 is when installing and car body is vertical or horizontal direction and divides.In order to reduce the weight of whole hanging beam, satisfy the requirement of high speed railway car weight-saving, can satisfy again the integrated carrying ability of hanging beam simultaneously, crossbeam 1 and longeron 2 all adopt the aluminium alloy hollow profile structure.
As depicted in figs. 1 and 2, in the present embodiment, preferably, the framed structure of hanging beam is to be made of welded connection by 3 crossbeams that are parallel to each other 1 and 2 longerons that are parallel to each other 2,2 longeron 2 elongated settings, the two ends of 2 longerons 2 are welded to connect on the medial surface of both sides crossbeam 1, and the two ends of middle 1 crossbeam 1 are welded to connect on the medial surface of 2 longerons 2.
For guaranteeing that under larger load-up condition crossbeam 1 and longeron 2 have good counter-bending, anti-torsion performance, as shown in Figure 3, in the present embodiment, preferably, it is the hollow beam of duplexing word that crossbeam 1 adopts section, and the crossbeam 1 preferred higher A7N01S-T5 section bar of intensity that adopts.As shown in Figure 4, longeron 2 preferred employing sections are the hollow beam of twoport type, and the longeron 2 preferred higher A6N01S-T5 section bars of toughness that adopt are with its strength and stiffness of abundant assurance.
Two end faces and the edge beam of underframe 6 of 2 crossbeams 1 of both sides are welded to connect, and the section form of duplexing word can increase bonding area, and then can effectively reduce the weld stress of edge beam of underframe 6, improve strength at repeated alternation.It is the hollow beam of duplexing word that crossbeam 1 in the middle of being positioned at also adopts section, can increase the bonding area with longeron 2 inboards, and then reduces the weld stress of longeron 2 and crossbeam 1.
The medial surface of the both ends of the surface of longeron 2 and the crossbeam of both sides 1 is welded to connect, adopt twoport type hollow beam can make the welding between longeron 2 and the crossbeam 1 simple, and weld seam transitions smooth, stress is concentrated lower, and strengthened the cross-sectional area of longeron 2, and then the weld seam area between longeron 2 and the crossbeam 1 is increased a lot, the weld stress at this place compared with prior art can reduce about 26MPa, further improves its fatigue life.
Through the lot of experiments checking, the width of longeron 2 is preferably 380-440mm, the width of longeron 2 is 400-420mm more preferably, in this width range, can guarantee under longeron 2 and the lower prerequisite of the weld stress of crossbeam 1, make the weight of longeron 2 minimum, and then satisfy the lightweight requirements of high speed railway car.
As shown in Figure 1, the lateral surface of 2 longerons 2 face of weld of edge beam of underframe 6 (namely with) is in the same plane with the end face of crossbeam 1.Like this, with edge beam of underframe 6 welding the time, the both ends of the surface of crossbeam 1 all are welded to connect with edge beam of underframe with the lateral surface that reaches longeron 2, crossbeam 1 and longeron 2 form integrated connection structure, significantly increased the weld seam area between hanging beam and the edge beam of underframe 6, namely increased the loaded area of weld seam, through the lot of experiments checking, this kind welding connecting mode, can significantly reduce weld stress, weld stress compared with prior art can reduce about 45MPa, and then realizes increasing substantially its fatigue life.In addition, with edge beam of underframe 6 welding the time, can adopt boxing technique to weld, technique is simple, good manufacturability, and the whole Automation of Welding level that improves, welding efficiency is high.
Traction transformer is hung on longeron 2, be provided be used to what hang voltage transformer at longeron 2 and hang hole 4, traction transformer by a plurality of bolts with hang hole 4 and captive joint.In the present embodiment, it is the hollow beam of twoport type that longeron 2 adopts section, hangs hole 4 and is opened on the base of one of them shape of the mouth as one speaks.Hang hole 4 and can be slotted hole, hang on the hole 4 simultaneously for a plurality of bolt captive joints for one.
Owing to the spacing between 3 crossbeams 1 is larger, cause the ground panel stiffness of its connection lower, as depicted in figs. 1 and 2, between two adjacent crossbeams 1, be provided with at least one needle beam 3, needle beam 3 be arranged in parallel with crossbeam 1, the two ends of needle beam 3 are welded to connect on the medial surface of longeron 2, and after needle beam 3 welding, the upper surface of its upper surface and crossbeam 1, longeron 2 is in same plane.As shown in Figure 5, the section of needle beam 3 is the H type, and this section can guarantee to guarantee the rigidity of needle beam 3 under the less prerequisite of needle beam 3 weight.In the present embodiment, in by intermediate transverse girder 1 separated two frame spaces, be respectively arranged with 3 needle beams 3 and 2 needle beams 3, a plurality of needle beams 3 evenly distribute, and the spacing between the needle beam 3 is approximately about 600mm.
The setting of needle beam 3 can further strengthen the strength and stiffness of whole hanging beam, hanging beam is reached bear the acceleration/accel load of EN12663 standard code, simultaneously, also can increase the rigidity on the floor that is welded on the hanging beam top, avoid floor vibration, reduce the floor vibration noise.
Hanging beam adopts this kind framed structure, whole rigidity and mechanical strength are higher, can reach the operating needs that bears damage load that European standard requires, simultaneously, load can balancedly be distributed on a plurality of crossbeams 1, longeron 2 and the needle beam 3, thereby reduced the stress level of crossbeam 1, longeron 2 independent structures, the fatigue life that can improve hanging beam.
Embodiment two:
As shown in Figure 6, it is the compound hollow beam of twoport type and chute that longeron 2 adopts section, and chute 5 is positioned at the edge bottom of longeron 2 one sides.No longer need to offer in addition on this longeron 2 and hang hole 4, chute 5 is itself hangs the hole, and a plurality of bolts are in chute 5 interior slips, and are in position fastening, and then the fixed traction voltage transformer.It is simple that this longeron 2 is hung form, is conducive to the assembling of voltage transformer.
Embodiment three:
As shown in Figure 7, it is the compound hollow beam of twoport type and chute that longeron 2 adopts section, and chute 5 is positioned at the base middle position of one of them shape of the mouth as one speaks.No longer need to offer in addition on this longeron 2 and hang hole 4, chute 5 is itself hangs the hole, and a plurality of bolts are in chute 5 interior slips, and are in position fastening, and then the fixed traction voltage transformer.Identical with embodiment two, it is simple that this longeron 2 is hung form, is conducive to the assembling of voltage transformer.
Embodiment four:
As shown in Figure 8, it is the hollow beam of duplexing word and chute compound type that crossbeam 1 adopts section, except possessing embodiment one described feature, also helps below crossbeam 1 and hangs equipment.
Embodiment five:
As shown in Figure 9, the framed structure of hanging beam is made of welded connection by 2 crossbeams 1 that are parallel to each other and 2 longerons 2 that are parallel to each other, the two ends of 2 longerons 2 are welded to connect the inboard at two end floor beams 1, the lateral surface of 2 longerons 2 face of weld of edge beam of underframe 6 (namely with) is in the same plane with the end face of crossbeam 1,3 needle beams 3 are set between two crossbeams 1, spacing between the needle beam 3 is approximately 600mm, is arranged on longeron 2 for the hole 4 of hanging of hanging traction transformer.
As mentioned above, given scheme content can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not break away from technical solutions of the utility model,, all still belong in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment does according to technical spirit of the present utility model.

Claims (10)

1. aluminum alloy bodywork of rail vehicle hanging beam, be connected to form framed structure by at least two crossbeams that are parallel to each other and at least two longitudinal beam weldings that are parallel to each other, it is characterized in that: the two ends of described longeron are welded to connect in the inboard of two end floor beams, and the lateral surface of described longeron and the end face of described crossbeam are in the same plane.
2. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1, it is characterized in that: described framework is formed by 3 described crossbeams and 2 described longitudinal beam weldings, the two ends of middle 1 crossbeam are welded to connect on the medial surface of 2 described longerons, and traction transformer is hung on described longeron.
3. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1, it is characterized in that: between described two adjacent described crossbeams, be provided with at least one needle beam, described needle beam and described crossbeam be arranged in parallel, and the two ends of described needle beam are weldingly fixed on the described longeron.
4. aluminum alloy bodywork of rail vehicle hanging beam according to claim 3, it is characterized in that: the section of described needle beam is the H type.
5. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1, it is characterized in that: described crossbeam is the hollow beam that section is duplexing font.
6. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1, it is characterized in that: described crossbeam is the hollow beam that section is duplexing word and chute compound type.
7. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1, it is characterized in that: described longeron is the hollow beam that section is the twoport type.
8. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1 is characterized in that: described longeron is that section is the compound hollow beam of twoport type and chute, and described chute is positioned at the edge of described longeron.
9. aluminum alloy bodywork of rail vehicle hanging beam according to claim 1 is characterized in that: described longeron is that section is the compound hollow beam of twoport type and chute, and described chute is positioned at the base middle position of one of them described shape of the mouth as one speaks.
10. each described aluminum alloy bodywork of rail vehicle hanging beam according to claim 7-9, it is characterized in that: the width of described longeron is 380-440mm.
CN201220432620.9U 2012-08-29 2012-08-29 Railway vehicle aluminum alloy car body hanging beam Expired - Lifetime CN202806775U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103407455A (en) * 2013-08-30 2013-11-27 南车南京浦镇车辆有限公司 Rail vehicle underframe equipment hanging beam
CN103625492A (en) * 2012-08-29 2014-03-12 南车青岛四方机车车辆股份有限公司 Hanging beam for aluminum alloy body of railway vehicle
CN104760603A (en) * 2015-04-10 2015-07-08 南车南京浦镇车辆有限公司 Installation structure for metro vehicle chassis devices
CN106347401A (en) * 2016-09-22 2017-01-25 中车南京浦镇车辆有限公司 Underframe equipment hanging support capable of preventing falling and looseness as well as hanging structure
CN106365022A (en) * 2016-08-31 2017-02-01 中车青岛四方机车车辆股份有限公司 Hoisting device and train with same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103625492A (en) * 2012-08-29 2014-03-12 南车青岛四方机车车辆股份有限公司 Hanging beam for aluminum alloy body of railway vehicle
CN103625492B (en) * 2012-08-29 2016-09-07 中车青岛四方机车车辆股份有限公司 Aluminum alloy bodywork of rail vehicle hanging beam
CN103407455A (en) * 2013-08-30 2013-11-27 南车南京浦镇车辆有限公司 Rail vehicle underframe equipment hanging beam
CN103407455B (en) * 2013-08-30 2015-09-02 南车南京浦镇车辆有限公司 Chassis of rail vehicle equipment hanging beam
CN104760603A (en) * 2015-04-10 2015-07-08 南车南京浦镇车辆有限公司 Installation structure for metro vehicle chassis devices
CN106365022A (en) * 2016-08-31 2017-02-01 中车青岛四方机车车辆股份有限公司 Hoisting device and train with same
CN106347401A (en) * 2016-09-22 2017-01-25 中车南京浦镇车辆有限公司 Underframe equipment hanging support capable of preventing falling and looseness as well as hanging structure

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Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Patentee after: CRRC QINGDAO SIFANG Co.,Ltd.

Address before: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88

Patentee before: CSR QINGDAO SIFANG LOCOMOTIVE & ROLLING STOCK Co.,Ltd.

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Granted publication date: 20130320

CX01 Expiry of patent term