CN103552564A - Flatcar chassis and manufacturing method thereof - Google Patents
Flatcar chassis and manufacturing method thereof Download PDFInfo
- Publication number
- CN103552564A CN103552564A CN201310578482.4A CN201310578482A CN103552564A CN 103552564 A CN103552564 A CN 103552564A CN 201310578482 A CN201310578482 A CN 201310578482A CN 103552564 A CN103552564 A CN 103552564A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- central sill
- cross beam
- crossbeam
- splitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Body Structure For Vehicles (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a flatcar chassis and a manufacturing method thereof. The flatcar chassis comprises a cross beam and a center sill, wherein the cross beam extends in the transverse direction; the center sill penetrates the cross beam in the longitudinal direction; the cross beam comprises a top cross beam cover plate; the center sill comprises a top center sill cover plate; the cross beam cover plate comprises branch cover plates on two sides of the center sill cover plate; the branch cover plates are welded and fixed with the center sill cover plate; arc-shaped transition surfaces in smooth connection with the longitudinal extending sides of the center sill cover plate are arranged on the front side surface and the rear side surface of the cross beam cover plate. The flatcar chassis has the advantages that the stress state of the connection part of the cross beam and the center sill is optimized, the stress concentration is avoided effectively, the fatigue life of a weld joint is prolonged, and the condition that part of the stress value is increased to the yield limit of the cross beam is further prevented, so that the bearing capability of the cross beam is improved, and the deformation failure of the cross beam is avoided.
Description
Technical field
The present invention relates to rolling stock manufacturing technology, relate in particular to a kind of articulated car underframe and manufacture method thereof.
Background technology
Articulated car is generally used for transferring containers and other items, and its underframe has high requirement as bearing substrate to structural strength.
Figure 1A is the birds-eye view of prior art articulated car underframe, the front view that Figure 1B is Figure 1A; As shown in FIG. 1A and 1B, underframe is generally by end carriage, the crossbeam 2 of horizontal expansion, the central sill 1 of longitudinal extension, side beam group welding form, two curb girders are symmetrical arranged the both sides with central sill 1, end carriage is positioned at the rear and front end of central sill 1 and curb girder, and crossbeam 2 is positioned at central sill 1 middle part, is welded and fixed with central sill 1 is middle.The steel structure of the longitudinal extension that central sill 1 is the upper cover plate at central sill top, the web assembly welding of the lower cover of bottom and both sides forms, crossbeam 2 be the steel structure of the horizontal expansion of crossbeam upper cover plate, lower cover and the formation of two coxostermum assembly weldings; And in order to facilitate the docking welding between crossbeam 2 and central sill 1, boss 102 is processed into towards longitudinal forward and backward both sides respectively in crossbeam upper cover plate and central sill 1 junction, to guarantee weldquality.
For articulated car, crossbeam 2 is positioned at underframe middle part, when articulated car transferring containers, crossbeam 2 need to bear the weight of two freight containers, for the higher position of load bearing requirements, yet, the existence of above-mentioned boss, can cause the fin place generation stress of boss to concentrate, the fatigue life at wire bonds place; Also more easily reach the yield limit of crossbeam, thereby cause beam deformation to lose efficacy.
Summary of the invention
For above-mentioned defect of the prior art, the invention provides a kind of articulated car underframe and manufacture method thereof, to optimize the state of stress of crossbeam and central sill junction, avoid stress to concentrate, and then improve crossbeam load-carrying capacity, life-saving.
The invention provides a kind of articulated car underframe, comprise: the crossbeam of horizontal expansion, and the central sill that longitudinally runs through described crossbeam, described crossbeam and central sill comprise respectively the central sill cover plate at top cross-bar cover plate and top, described crossbearer cover plate comprises the splitted cover board that is positioned at described central sill cover plate both sides, described splitted cover board and described central sill cover plate are welded and fixed, and the forward and backward side of described crossbearer cover plate forms and the arc transiting surface of the side smooth engagement of the longitudinal extension of described central sill cover plate.
Articulated car underframe as above, preferably, described crossbeam also comprise bottom crossbeam base plate and be fixedly connected on described crossbearer cover plate and described crossbeam base plate between two cantilever diaphragms; Described central sill also comprises bottom central sill base plate and is arranged on two middle webs between described central sill cover plate and central sill base plate.
Articulated car underframe as above, preferably, described arc transiting surface end directly directly engages with the side of described central sill cover plate.
Articulated car underframe as above, preferably, the side of described central sill cover plate and described transition cambered surface are tangent
The present invention also provides a kind of manufacture method of articulated car underframe, comprising:
Two splitted cover boards of crossbearer cover plate are placed in respectively to central sill both sides, and the side of described splitted cover board and two longitudinal extensions of described central sill cover plate is welded and fixed; Wherein said splitted cover board is in forward and backward side longitudinally and be close to described central sill cover plate place and be formed with respectively boss;
The described boss of the forward and backward side of described splitted cover board is ground away, to form the transition cambered surface with described central sill cover plate smooth engagement.
Articulated car underframe provided by the invention and manufacture method thereof, by the forward and backward side of splitted cover board is directly engaged with central sill cover plate through circular-arc transition face, make crossbearer cover plate and central sill cover plate weld no longer have any raised points, thereby avoiding producing stress concentrates, improved the fatigue life of weld seam, and also can further prevent that part stress value is increased to the yield limit of crossbeam, and then improve the load-carrying capacity of crossbeam, avoid beam deformation inefficacy.
Accompanying drawing explanation
Figure 1A is the birds-eye view of prior art articulated car underframe;
Figure 1B is the front view of Figure 1A;
Fig. 2 is the birds-eye view of articulated car underframe embodiment of the present invention;
Fig. 3 be embodiment illustrated in fig. 2 without before grinding time the enlarged drawing at A place;
Fig. 4 be embodiment illustrated in fig. 2 after grinding the enlarged drawing at A place.
The specific embodiment
" longitudinally " of the present invention refers to the direction that articulated car extends, and is also the rectilinear direction at articulated car service direction place, and " laterally " refers to direction vertical with " longitudinally " in horizontal surface.
Fig. 2 is the birds-eye view of articulated car underframe embodiment of the present invention; Please refer to Fig. 2, the present embodiment provides a kind of articulated car underframe, comprise: the crossbeam 31 of horizontal expansion, and the central sill 32 that longitudinally runs through crossbeam 31, crossbeam 31 and central sill 32 comprise respectively the central sill cover plate 320 at top cross-bar cover plate 310 and top, crossbearer cover plate 310 comprises the splitted cover board 311 that is positioned at central sill cover plate 320 both sides, splitted cover board 311 is welded and fixed with central sill cover plate 320, and the forward and backward side of crossbearer cover plate 310 forms and the arc transiting surface 33 of the side smooth engagement of the longitudinal extension of central sill cover plate 320.
Particularly, central sill 32 can be positioned on the vertical central axis of underframe, crossbeam 31 can be positioned at central sill 32 mid point and with central sill 32 square crossing settings; Wherein, central sill 32 and crossbeam 31 can adopt welded steel structure respectively,, central sill 32 can comprise the central sill cover plate 320 at top, the central sill base plate of bottom and be welded on central sill cover plate 320 and central sill base plate between and the web that is arranged in both sides, to surround uniform cross section steel structure hollow, longitudinal extension; Crossbeam 31 can comprise the crossbearer cover plate 310 at top, the crossbeam base plate of bottom and be welded on crossbearer cover plate 310 and crossbeam base plate between and the cantilever diaphragm that is positioned at both sides, to form uniform cross section steel structure hollow, horizontal expansion; And the thickness of central sill 32 and crossbeam 31 matches so that central sill cover plate 320 with crossbearer cover plate 310 in same level, central sill base plate and crossbeam base plate in same level.
Further, for ease of assembly, central sill cover plate 320 can comprise that 311, two splitted cover boards 311 of two splitted cover boards are symmetricly set on central sill cover plate 320 both sides, after two splitted cover boards 311 are welded and fixed with central sill cover plate 320 sides, both sides respectively, form the crossbeam 32 of a horizontal expansion.
In the present embodiment, splitted cover board 311 leading flanks and trailing flank form respectively circular-arc transition cambered surface 33 near one end of central sill cover plate 320, and these transition cambered surface 33 ends just directly engage with central sill cover plate 320,, between splitted cover board 311 and central sill cover plate 320 sides, only by level and smooth, a circular-arc cambered surface of crossing, be connected, do not have other salient points.
Alternatively, the side of central sill cover plate 320 can also be tangent with transition cambered surface 33, that is to say, the side of central sill cover plate 320 longitudinal extensions is just positioned on the tangent line of transition cambered surface 33 ends.
The articulated car underframe that the present embodiment provides, by the forward and backward side of splitted cover board is directly engaged with central sill cover plate through circular-arc transition face, make crossbearer cover plate and central sill cover plate weld no longer have any raised points, thereby avoiding producing stress concentrates, improved the fatigue life of weld seam, and also can further prevent that part stress value is increased to the yield limit of crossbeam, and then improve the load-carrying capacity of crossbeam, avoid beam deformation inefficacy.
The present invention also provides a kind of manufacture method of above-mentioned articulated car underframe, please refer to Fig. 2,, Fig. 3 and Fig. 4, comprising:
Step 1, two splitted cover boards 311 of crossbearer cover plate 310 are placed in respectively to central sill 32 both sides, and splitted cover board 311 and the side of 320 two longitudinal extensions of central sill cover plate are welded and fixed; Wherein, splitted cover board 311 in forward and backward side longitudinally and be close to described central sill cover plate place and be formed with respectively boss 102(as shown in Figure 3).
; in order to facilitate the welding of docking of splitted cover board 311 and central sill cover plate 320; can will on the adjacent leading flank in the side towards central sill cover plate 320 of splitted cover board 311 and trailing flank, reserve respectively boss 102; at splitted cover board 311, towards the side of central sill, towards adjacent two side transition positions, process respectively boss 102; to increase the area of contact of splitted cover board 311 and central sill cover plate 320 sides, guarantee to be welded and fixed the weldquality of rear formation.
Splitted cover board 311 is pressed predeterminated position clamping after, splitted cover board 311 can be secured together towards the side of central sill cover plate 320 and the welding of central sill cover plate, make the common crossbearer cover plate 31 that forms a horizontal expansion of splitted cover board 311 of central sill 32 both sides.
Utilize the method for the present embodiment can process the articulated car underframe in previous embodiment.
The articulated car underframe manufacture method that the present embodiment provides, by first reserved boss, postwelding on splitted cover board again by boss grinding to form round and smooth transition cambered surface, can realize and weld conveniently, securely splitted cover board and central sill cover plate, and, due to welding after crossbearer cover plate between central sill for seamlessly transitting, no longer there is salient point or fin, thereby can effectively avoid producing stress and concentrate, the fatigue life of having improved weld seam; And, also contribute to improve the load-carrying capacity of crossbeam, avoid reaching yield limit too early and cause beam deformation to lose efficacy.
Finally it should be noted that: each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit above; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (5)
1. an articulated car underframe, comprise: the crossbeam of horizontal expansion, and the central sill that longitudinally runs through described crossbeam, described crossbeam and central sill comprise respectively the central sill cover plate at top cross-bar cover plate and top, it is characterized in that, described crossbearer cover plate comprises the splitted cover board that is positioned at described central sill cover plate both sides, and described splitted cover board and described central sill cover plate are welded and fixed, and the forward and backward side of described crossbearer cover plate forms and the arc transiting surface of the side smooth engagement of the longitudinal extension of described central sill cover plate.
2. articulated car underframe according to claim 1, is characterized in that, described crossbeam also comprise bottom crossbeam base plate and be fixedly connected on described crossbearer cover plate and described crossbeam base plate between two cantilever diaphragms; Described central sill also comprises bottom central sill base plate and is arranged on two middle webs between described central sill cover plate and central sill base plate.
3. articulated car underframe according to claim 1, is characterized in that, described arc transiting surface end directly directly engages with the side of described central sill cover plate.
4. according to the articulated car underframe described in claim 1 or 2 or 3, it is characterized in that, the side of described central sill cover plate and described transition cambered surface are tangent
5. a manufacture method for the arbitrary described articulated car underframe of claim 1-4, is characterized in that, comprising:
Two splitted cover boards of crossbearer cover plate are placed in respectively to central sill both sides, and the side of described splitted cover board and two longitudinal extensions of described central sill cover plate is welded and fixed; Wherein said splitted cover board is in forward and backward side longitudinally and be close to described central sill cover plate place and be formed with respectively boss;
The described boss of the forward and backward side of described splitted cover board is ground away, to form the transition cambered surface with described central sill cover plate smooth engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578482.4A CN103552564B (en) | 2013-11-14 | 2013-11-14 | Articulated car underframe and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310578482.4A CN103552564B (en) | 2013-11-14 | 2013-11-14 | Articulated car underframe and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103552564A true CN103552564A (en) | 2014-02-05 |
| CN103552564B CN103552564B (en) | 2016-08-17 |
Family
ID=50006993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310578482.4A Active CN103552564B (en) | 2013-11-14 | 2013-11-14 | Articulated car underframe and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103552564B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107676A1 (en) * | 2015-12-25 | 2017-06-29 | 中车长江车辆有限公司 | Flat car body |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU189711U1 (en) * | 2018-06-05 | 2019-05-30 | "Головное специализированное конструкторское бюро вагоностроения имени Валерия Михайловича Бубнова" | Platform car |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4229481C1 (en) * | 1992-09-03 | 1994-01-05 | Inst Schienenfahrzeuge | Railway carriage underframe of modular construction - comprises end structures, running gear frames, central section of lengthwise and transverse beams and two outer lengthwise beams all welded together |
| CN101262963A (en) * | 2005-06-03 | 2008-09-10 | 亨里技术有限公司 | Fabricating a metal beam |
| CN201161588Y (en) * | 2007-12-06 | 2008-12-10 | 南车眉山车辆有限公司 | Flat car special for railway container |
| CN201544979U (en) * | 2009-09-25 | 2010-08-11 | 中国北车集团大连机车车辆有限公司 | Connecting seat for circular steel tube cross beams of framework |
| CN202029861U (en) * | 2011-02-24 | 2011-11-09 | 南车长江车辆有限公司 | Chassis of railway heavy-load freight flatcar |
| CN202368589U (en) * | 2011-09-20 | 2012-08-08 | 南车二七车辆有限公司 | Railway flat car body with large weight concentration capacity |
| CN102991518A (en) * | 2012-12-11 | 2013-03-27 | 南车二七车辆有限公司 | Centre sill for flat car for railway transportation |
-
2013
- 2013-11-14 CN CN201310578482.4A patent/CN103552564B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4229481C1 (en) * | 1992-09-03 | 1994-01-05 | Inst Schienenfahrzeuge | Railway carriage underframe of modular construction - comprises end structures, running gear frames, central section of lengthwise and transverse beams and two outer lengthwise beams all welded together |
| CN101262963A (en) * | 2005-06-03 | 2008-09-10 | 亨里技术有限公司 | Fabricating a metal beam |
| CN201161588Y (en) * | 2007-12-06 | 2008-12-10 | 南车眉山车辆有限公司 | Flat car special for railway container |
| CN201544979U (en) * | 2009-09-25 | 2010-08-11 | 中国北车集团大连机车车辆有限公司 | Connecting seat for circular steel tube cross beams of framework |
| CN202029861U (en) * | 2011-02-24 | 2011-11-09 | 南车长江车辆有限公司 | Chassis of railway heavy-load freight flatcar |
| CN202368589U (en) * | 2011-09-20 | 2012-08-08 | 南车二七车辆有限公司 | Railway flat car body with large weight concentration capacity |
| CN102991518A (en) * | 2012-12-11 | 2013-03-27 | 南车二七车辆有限公司 | Centre sill for flat car for railway transportation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017107676A1 (en) * | 2015-12-25 | 2017-06-29 | 中车长江车辆有限公司 | Flat car body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103552564B (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103085832B (en) | Rail car body bolster and job operation thereof | |
| CN104354710A (en) | Aluminum alloy sleeper beam structure and mounting method thereof | |
| CN206265042U (en) | The attachment structure of tank car reinforcement backing plate and draw beam | |
| CN103552564A (en) | Flatcar chassis and manufacturing method thereof | |
| CN207550194U (en) | A kind of traction sleeper device with beam structure | |
| CN109969214A (en) | End underframe structure used for rail vehicle and rail vehicle | |
| CN104843025A (en) | Standard motor train unit power bogie frame | |
| CN202414551U (en) | Wave subduer for railway liquid tank wagon | |
| CN205087022U (en) | Adopt pipe beam assembly of novel casting support | |
| CN203920902U (en) | Carriage of mining self-unloading vehicle | |
| CN202186815U (en) | Elevator car rack | |
| CN204605833U (en) | Standard motor train unit power steering truck frame work | |
| CN105438051A (en) | Tank car body and tank car underframe connecting device and railway tank car | |
| CN205769306U (en) | The back-shaped ring beam structure of underframe in flatcar | |
| CN204236479U (en) | For the headwall reinforced structure of hopper car | |
| CN208774766U (en) | A kind of railway tank truck body, traction sleeper device and tank car | |
| CN103085829A (en) | Quick goods van bogie | |
| CN201849531U (en) | Bottom crossbeam structure of vehicle and vehicle with bottom crossbeam structure | |
| CN201833928U (en) | Self-unloading automobile and compartment bottom plate structure thereof | |
| CN104442866B (en) | For the built-in top side rail and dividing plate and the attachment structure of side wall of hopper wagon | |
| CN203186357U (en) | Riveting type integrated upper center plate for railway wagon | |
| CN103010075A (en) | Cable-stayed beam assembly of concrete mixer truck frame | |
| CN204077473U (en) | A kind of W type self-discharging carriage | |
| CN202279125U (en) | H steel for heavy haul railway flat car | |
| CN203306024U (en) | Dragging auxiliary device for railway vehicle bogie |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wan Shengtai Inventor after: Ma Guohui Inventor after: Zhang Chengzhi Inventor before: Zhao Linbao Inventor before: Ma Guohui Inventor before: Zhang Chengzhi |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO LINBAO MA GUOHUI ZHANG CHENGZHI TO: WAN SHENGTAI MA GUOHUI ZHANG CHENGZHI |
|
| CB02 | Change of applicant information |
Address after: The development of Shenyang economic and Technological Development Zone of Liaoning Province, No. 28 road 110142 Applicant after: ZHONGCHE SHENYANG LOCOMOTIVE AND VEHICLE CO., LTD. Address before: 110142 Shenyang economic and Technological Development Zone, Liaoning Road, No. 28 Applicant before: China Beiche Group Shenyang Locomotive Vehicle Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |