EP3227157A1 - Querträger für einen fahrwerksrahmen eines schienenfahrzeugs - Google Patents
Querträger für einen fahrwerksrahmen eines schienenfahrzeugsInfo
- Publication number
- EP3227157A1 EP3227157A1 EP16706179.5A EP16706179A EP3227157A1 EP 3227157 A1 EP3227157 A1 EP 3227157A1 EP 16706179 A EP16706179 A EP 16706179A EP 3227157 A1 EP3227157 A1 EP 3227157A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cross member
- member according
- bending
- edge
- sections
- 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
- 238000005452 bending Methods 0.000 claims abstract description 93
- 238000011161 development Methods 0.000 claims description 5
- 241001016380 Reseda luteola Species 0.000 description 58
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000002349 favourable effect Effects 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
Definitions
- the invention relates to a cross member for a
- Chassis frame of a rail vehicle for connecting two side members of the chassis frame, wherein the cross member is box-shaped with a top flange, a bottom flange and two side walls and seen in a longitudinal direction end one terminal portion for
- Bogies also called bogies
- rail vehicles usually have two sets of wheels, which are guided on rails, and are connected to car bodies of the rail vehicle.
- An integral part of a chassis is a chassis frame to which the wheelsets, for example. Via a Radsatz Entry or a primary suspension and the car body eg. Via a secondary suspension and a device for power transmission are connected. The power flows between the individual components run mainly on the chassis frame.
- the chassis frame usually comprises two longitudinal members and one or more cross members, the embodiment is referred to with a cross member as H-type.
- the longitudinal members as well as by means of headrests
- the cross member is in the H-type as a box-shaped
- Transverse direction corresponds to the chassis frame, has the
- Cross member each end a connection section, via which the cross member is connected to one of the longitudinal members via welds, eg. Kehlnumblete.
- top chord, bottom chord, side walls are connected to each other at the edges by means of a continuous fillet weld, wherein the
- Chassis frame increases and on the other hand, a large
- the invention relates to a cross member for a
- Chassis frame of a rail vehicle for connecting two side members of the chassis frame, wherein the cross member is box-shaped with a top flange, a bottom flange and two side walls and seen in a longitudinal direction end one terminal portion for
- the cross member is a bent part, wherein between the
- Bending parts are in a bending process, as well
- Suitable manufacturing methods are, for example, the die bending or the swivel bending.
- Bending areas are characterized and characterized by a homogeneous and favorable voltage curve.
- Upper flange and lower flange or the side walls in each case relate to the non-plastically deformed, preferably flat, regions of the cross member.
- the bending regions relate to the respective plastically deformed, preferably curved, regions of the cross member.
- the bending region is formed as a bending radius, wherein the center of the bending radius is located in the interior of the cross member. This results in a particularly easy-to-manufacture form of the cross member, which is said in other words in the
- the bending region has a convex profile.
- first edges are those edges which are formed at the open ends of the bent part. In other words, these are those edges, which in the
- the bent part is according to a first
- Embodiment variant of the invention integrally formed.
- the box-shaped profile is replaced by a single
- Connecting portion is connected to the second connecting portion by a connecting weld, preferably butt weld. Since the connecting portions are opposite and thus butt against each other, the two connecting portions are connected by a connecting weld seam such as a butt weld, in which the entire
- Connecting portion may also be formed divided, so does not extend continuously over the full length in the length direction of the cross member.
- Embodiment provides that the connecting portions are formed as part of the lower chord and are preferably aligned symmetrically with respect to a normal to the length direction width direction.
- connection weld manufacturing technology is simple
- a second embodiment of the invention provides that the bent part is formed in several pieces and at least a first portion and a second portion includes, wherein at least one part forming the dividing plane is aligned parallel to the length direction.
- Forming the bending part allows a much simpler production, since the box-shaped cross section of several sections, each with open profiles, for example. Of two U-profiles or four edge profiles, can be assembled. By aligning the division plane (at two
- Sections) parallel to the length direction is safe
- the bent part comprises exactly two sections, each section each comprising a side wall and a part, preferably half, of the upper and lower belt.
- each section has a first connecting portion and a second
- Connection section on and is always the first
- each section in the settlement has a first edge on both sides, each section also has two connection sections, which are connected to the connection sections of the adjacent sections. So is
- Connecting portion (right” edge) of the second portion connected to the second connecting portion ("left” edge) of the first portion. If more than two sections are provided, the series can be continued analogously for any number of sections. As described above, the
- Connecting portions are each provided a connecting weld, such as a butt weld, in which the entire weld cross-section has a bearing effect.
- the two connecting sections are therefore again
- Connecting portions along the length direction may be made in several parts, that does not extend continuously over the full length of the cross member in the length direction.
- a particularly preferred embodiment of the first and second embodiment provides that the connecting welds extend outside of the bending regions.
- Cross member which accordingly to a reduction of Verwind-rigidity of the chassis frame leads, is
- the cross member on its lateral surface, comprising upper flange, lower flange and the side walls, on at least two opposite sides of the lateral surface openings.
- the upper and lower chords whose width, as seen in the width direction, is generally larger than the width of the sidewalls in a direction normal to the width and height directions, are particularly well suited for having large openings. It is advantageous if the upper or lower opening between 50% and 80%, preferably between 65% and 75%, and the other opening between 20% and 40%, preferably between 25% and 35%, the surface of the upper flange or .
- Openings do not need to be closed.
- the fact that one of the two openings is smaller ensures that the cross member over the respective upper belt or lower belt operating forces from one longitudinal member to the other
- Cross member provided that provided for connection to one of the longitudinal members connecting portion in the settlement of the bent part by a normal to the length direction
- the interruptions serve to prevent a continuous terminal edge and to segment the second edge into individual parts which do not touch each other. So is the training of a
- Seen length direction curved are not suitable for connection to the longitudinal beam, for example by a terminal weld. That's why it's special
- Embodiment provided four interruptions, which the second edge in an upper terminal edge of the upper chord, in a lower connecting edge of the lower chord and two
- the recess are larger than the dimensions of the interruptions. While the interruption per se can be made relatively small, since only the second edge has to be interrupted, the recess facilitates bending, so that no corrugations occur in the bending region. Therefore, it has proved particularly advantageous
- the maximum extent of the recess in the width direction comprises at least the bending area and the maximum extent of the recess in the length direction between 25% and 75%, preferably between 33% and 66%, in particular between 40% and 60%, of the maximum extent in
- Width direction is. If one considers the development of the bent part, then the recesses are semicircular or semi-elliptical.
- a further particularly preferred embodiment of the invention provides that at least one adjacent to the interruption end portion of the adjacent terminal edge by a rod-shaped portion of the respective terminal edge forming
- the distance corresponds at least to the thickness of the sheet, which is the
- Length of the connecting edges is achieved, with the connecting edges are straight in order to obtain a high-quality and high-strength weld.
- each longitudinal member has in its central portion a side member connecting portion which is connected to one of the connecting portions of the cross member.
- Chassis frame provides in this case that each longitudinal beam connecting portion has four rectilinear, non-interconnected side member connecting edges, which are preferably arranged on the circumference of a rectangle, and are connected via terminal welds with the terminal edges of the cross member.
- straight running Connecting edges of the cross member which are accessible through the upper and / or lower opening in the lateral surface of the cross member for post processing, can be
- Fig. 1 is an axonometric view of a first
- Fig. 2 is an axonometric view of a settlement of in
- Fig. 1 illustrated cross member
- Fig. 3 is an axonometric view of a second
- Fig. 4 is a plan view of an inventive
- FIG. 5 is a sectional view taken along line AA of Fig. 4th
- Figure 1 shows a first embodiment of a
- Cross-member according to the invention with box-shaped profile, wherein the cross section is normal to a length direction 5 of the cross member.
- the length direction 5 corresponds to a transverse direction of the Chassis frame.
- the cross member comprises a top flange 1, which in the installed state a car body of a
- Rail vehicle facing a lower flange 2, which faces the rails in the installed state, and a first side wall 3 and a second side wall 4, which in
- connection sections 7, 8 serve to connect the cross member to a respective longitudinal member 38, 39.
- the connecting sections 7, 8 are the open ends of the box-shaped cross member.
- the box-shaped profile of the cross member is made from a flat settlement by means of a
- Bending part 9 is a single part, which is both upper flange 1, lower flange 2 and the side walls 3,4
- Bending region 10 represents a curved region, which in the present example is designed as a transition radius with a bending radius 11, as can be clearly seen in FIG. It is in the bending radius 11 to a circle radius, in alternative embodiments, curves with different curvature, such as ellipses are conceivable.
- a bending region 10 is also formed between the upper flange 1 and the second side wall 4. Completely analogous is also at the transition between the first side wall 3 and the lower flange 2 and between the second side wall 4 and the lower flange 2 each one
- Bending region 10 formed in the same shape, so that the cross section of the cross member normal to the length direction 5, the shape of a rectangle with, by the bending radii 11,
- Pages a first edge 14 (indicated by the dashed line) forms, which is parallel to the length direction 5. This forms on the one hand the
- the connecting sections 16, 17 are the end faces of the element forming the first edge 14, ie those flat surfaces which are in
- the lower flange 2 is made split, so that in each case one half, in
- Width direction 6 is measured, the lower belt 2 via the, not yet deformed and therefore flat, bending region 10 is connected to the corresponding side wall 3,4. Therefore, therefore, the lower flange 2 forms the connecting portions 16,17. Similarly, it is just as conceivable that the
- Sections of the lower belt 2 are formed, wherein the
- Opening 21 protrudes to the length of
- connection weld seam 18 which is designed as a butt weld.
- the top chord 1 has an upper opening 20, the lower chord 2 has the lower opening 21, and each of the side walls 3, 4 has four side openings 22.
- the openings 20,21,22 each at least 20% of the surface of the corresponding element, ie the upper belt 1, the
- the upper opening 20 has a substantially
- the upper opening 20 occupies about 30% of the surface of the upper belt 1.
- the lower opening 21 is elliptical in shape, is aligned symmetrically in the length direction 5 and in the width direction 6 to the lower flange 2 and occupies about 75% of the surface of the lower flange 2, so that the lower flange 2 has a lower shear stiffness than the upper flange 1.
- the four side openings 22 are formed identically on both side walls 3, 4 and comprise a pair of circular and a pair of rectangular rounded openings symmetrically arranged with respect to the width direction 6 (see Fig. 2). Seen in the length direction 5 are the
- the total area of the four side openings 22 is about 35% of the area of a side wall 3,4.
- Bending part 9 each end, so on the front or rear side, a second edge 15 which is normal to the length direction 5 and parallel to the width direction. 6
- Edge 15 would also plastically deform during the bending operation in the bending region 10, which would lead to a circumferential edge in the form of a rounded rectangle, the second edge 15 is divided by four interruptions 23,24,25,26 in four areas, directly to the upper flange 1, the lower flange 2 and the side walls 3,4 are assigned.
- the first interruption 23 and the second interruption 24 define a lateral connection edge 29 of the first side wall 3, the second interruption 24 and the third interruption 25 an upper connection edge 27 of the
- Bending region 10 corresponds, are arranged to achieve the same effect.
- the interruptions 23,24,25,26 each go into one
- Recesses 30 are formed identically. The first
- Break 23 takes only about 15% of a maximum
- the recess 30 is substantially larger, so that its maximum extension in the width direction 6 corresponds at least to the maximum extent of the bending region 10 in the width direction 6.
- the recess 30 is offset inwardly parallel to the second edge 15, so that an inner edge parallel to the second edge 15 of the recess 30 is formed, and has a substantially
- the end portion 31 of the upper terminal edge 27 adjoining the third interruption 25 is formed by a rod-shaped portion 33 of the upper belt 1 which extends between the upper terminal edge 27 itself and the inner edge of the recess 30.
- the distance between the upper connecting edge 27 and the second edge 15 and the inner edge corresponds to at least the thickness of the sheet of the bent part 9.
- the rod-shaped portion 33 of the upper belt 1 is finger-like in the width direction 6, so that the entire upper terminal edge 27, also in the
- Terminal edge 27,28 feature are the
- recesses 30 are provided approximately symmetrically to the bending region 10.
- Sections 33,34 are much shorter and the
- Figure 3 shows a second embodiment of the invention, in which the bent part 9 is formed in several pieces, more precisely as a first portion 12 and a second portion 13.
- the two sections 12, 13 each have a U-shape and are divided by a dividing plane 19, which extends along the length direction 5 and normal to the
- Width direction 6 stands.
- the dividing plane 19 divides the top flange 1 and the bottom flange 2 in the width direction 6 exactly in half, so that the first portion 12, the first
- Side wall 3 which includes one half of the lower flange 2 and the upper flange 1 and the second portion 13, the second side wall 4 and each of the other half of lower flange 2 and upper flange 1 comprises.
- one-piece bent part 9 can also be the
- Unwinding sections 12,13 wherein each section 12,13 has two first edges 14, respectively on the left and right side, which first edges 14 each have a first Connecting portion 16 and a second
- Form connecting portion 17 To close the cross member, so are the two sections 12,13 to the
- the second embodiment differs from the first only in the sense that the connecting seam 18 on the upper flange 1 also by the upper
- Opening 20 is interrupted, as the joint weld 18 on the lower flange 1 through the lower opening 21st
- Connecting portions 16,17 are connected together.
- connection sections 16, 17 or the connection welds 18 run outside of the bending areas 10, in order to avoid stress concentration in the bending areas 10.
- Figure 4 is an embodiment of a
- chassis frame wherein the chassis frame formed next to the bending part 9 as
- Cross member comprises a first side member 35 and a second side member 36.
- the side members 35,36 point in
- Central section 37 a first longitudinal beam Connection section 38 for connection to the cross member on; the second side member 36 has in the central portion 37 a second side member connecting portion 39 for connection to the cross member.
- the side member connecting portions 38,39 analogous to the connecting edges 27,28,29 of the connecting portions 7,8 of the cross member, side member connecting edges 40, so that the side member connecting edges 40 are arranged on the circumference of a rectangle.
- the side rail connecting edges 40 comprise two pairs of mutually parallel edges which enclose a right angle with each other.
- two adjoining side member connecting edges 40 do not touch each other and extend entirely rectilinearly.
- Butt welds trained connection welds 41 results in a particularly high load connection between the side rails 35,36 and formed as a bending part 9 cross member.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50164/2015A AT516922A2 (de) | 2015-03-03 | 2015-03-03 | Querträger für einen Fahrwerksrahmen eines Schienenfahrzeugs |
PCT/EP2016/053848 WO2016139096A1 (de) | 2015-03-03 | 2016-02-24 | Querträger für einen fahrwerksrahmen eines schienenfahrzeugs |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3227157A1 true EP3227157A1 (de) | 2017-10-11 |
EP3227157B1 EP3227157B1 (de) | 2020-08-05 |
Family
ID=55411386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16706179.5A Active EP3227157B1 (de) | 2015-03-03 | 2016-02-24 | Fahrwerksrahmen eines schienenfahrzeugs mit einem querträger |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3227157B1 (de) |
AT (1) | AT516922A2 (de) |
WO (1) | WO2016139096A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113442966B (zh) * | 2020-03-27 | 2022-10-18 | 比亚迪股份有限公司 | 用于轨道车辆的转向架和具有其的轨道车辆 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR931591A (fr) * | 1943-01-27 | 1948-02-26 | Alsthom Cgee | Nouveau mode de construction pour châssis de bogies ou trucks et organes analogues des locomotives et autres véhicules |
JPS5788939A (en) * | 1980-11-21 | 1982-06-03 | Kawasaki Heavy Ind Ltd | Truck frame |
CN103085829A (zh) * | 2013-01-29 | 2013-05-08 | 济南轨道交通装备有限责任公司 | 快速货车转向架 |
-
2015
- 2015-03-03 AT ATA50164/2015A patent/AT516922A2/de not_active Application Discontinuation
-
2016
- 2016-02-24 EP EP16706179.5A patent/EP3227157B1/de active Active
- 2016-02-24 WO PCT/EP2016/053848 patent/WO2016139096A1/de active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP3227157B1 (de) | 2020-08-05 |
AT516922A2 (de) | 2016-09-15 |
WO2016139096A1 (de) | 2016-09-09 |
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