CN109109892B - Railway vehicle's chassis subassembly and railway vehicle - Google Patents

Railway vehicle's chassis subassembly and railway vehicle Download PDF

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Publication number
CN109109892B
CN109109892B CN201811038271.0A CN201811038271A CN109109892B CN 109109892 B CN109109892 B CN 109109892B CN 201811038271 A CN201811038271 A CN 201811038271A CN 109109892 B CN109109892 B CN 109109892B
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CN
China
Prior art keywords
floor
undercarriage assembly
crossbeam
cross member
assembly
Prior art date
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Application number
CN201811038271.0A
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Chinese (zh)
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CN109109892A (en
Inventor
王小杰
田爱琴
喻海洋
刘玉文
袁琦
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CRRC Qingdao Sifang Co Ltd
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CRRC Qingdao Sifang Co Ltd
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Priority to CN201811038271.0A priority Critical patent/CN109109892B/en
Publication of CN109109892A publication Critical patent/CN109109892A/en
Application granted granted Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F1/00Underframes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F1/00Underframes
    • B61F1/08Details
    • B61F1/12Cross bearers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00Construction details of vehicle bodies
    • B61D17/04Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/10Floors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F1/00Underframes
    • B61F1/08Details
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F1/00Underframes
    • B61F1/08Details
    • B61F1/14Attaching or supporting vehicle body-structure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61FRAIL 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
    • B61F5/00Constructional 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
    • B61F5/50Other details
    • B61F5/52Bogie frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61DBODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00Construction details of vehicle bodies
    • B61D17/04Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/043Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures connections between superstructure sub-units

Abstract

The invention provides an underframe assembly of a railway vehicle and the railway vehicle. The chassis assembly includes: the two lower edge beams are arranged at intervals; the beam assemblies are arranged between the two lower edge beams, the number of the beam assemblies is multiple, and the beam assemblies are arranged at intervals along the length direction of the lower edge beams; wherein, in the direction of height of rocker, at least one crossbeam subassembly includes first crossbeam and sets up the second crossbeam in first crossbeam below, and first crossbeam and second crossbeam form the installation cavity, and the installation cavity is worn to establish by a part of rail vehicle's floor. By applying the technical scheme of the invention, the internal space of the vehicle can be increased on the basis of ensuring the connection strength of the beam assembly and the floor.

Description

Railway vehicle's chassis subassembly and railway vehicle
Technical Field
The invention relates to the field of railway vehicles, in particular to an underframe assembly of a railway vehicle and the railway vehicle.
Background
The underframe assembly serves as a main bearing structure of the vehicle body, not only bears the weight of the vehicle body and the weight of all equipment in the vehicle, but also transmits traction force and braking force and complex dynamic stress, so that the underframe assembly has to have enough strength and certain rigidity.
In the stainless steel automobile body of prior art, the chassis subassembly includes two lower boundary beams, many crossbeams, and many crossbeams set up along the length direction interval of lower boundary beam, and the cross sectional shape of crossbeam is the C type, and metal floor covers in the top of crossbeam and lower boundary beam, makes the car inner space and the car that is located the chassis subassembly below separate through metal floor to play the fire-retardant effect of making an uproar of falling. However, due to the limitation of the vehicle height, when the floor is laid above the cross member and the side sill, the space in the vehicle is limited accordingly, and the installation space requirement of the battery and other equipment cannot be satisfied.
Disclosure of Invention
The invention mainly aims to provide an underframe assembly of a railway vehicle and the railway vehicle, and aims to solve the problem that the inner space of the vehicle cannot be ensured on the premise of ensuring the connection strength of a cross beam and a floor in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an underframe assembly for a railway vehicle, comprising: the two lower edge beams are arranged at intervals; the beam assemblies are arranged between the two lower edge beams, the number of the beam assemblies is multiple, and the beam assemblies are arranged at intervals along the length direction of the lower edge beams; wherein, in the direction of height of rocker, at least one crossbeam subassembly includes first crossbeam and sets up the second crossbeam in first crossbeam below, and first crossbeam and second crossbeam form the installation cavity, and the installation cavity is worn to establish by a part of rail vehicle's floor.
Further, the first cross beam comprises a U-shaped beam and a connecting beam connected with the U-shaped beam, and the connecting beam is used for being connected with the floor.
Furthermore, the U-shaped beam and the connecting beam are of an integrally formed structure.
Further, the cross-sectional shape of the second cross member is Z-shaped in the width direction of the underframe assembly.
Further, the second crossbeam is including the first horizontal beam, vertical roof beam and the second horizontal beam that connect gradually, and first horizontal beam and second horizontal beam are located the both sides of vertical roof beam respectively, and first horizontal beam is used for being connected with the one side of keeping away from first crossbeam on floor.
Further, the first horizontal beam, the vertical beam and the second horizontal beam are of an integrally formed structure.
Furthermore, a wire passing groove is formed in the second cross beam, penetrates through the second horizontal beam and extends to the vertical beam.
Further, the floor is connected with the first cross beam in a welding mode, and/or the floor is connected with the second cross beam in a welding mode.
Further, the floor is corrugated.
Further, along the width direction of chassis subassembly, the relative both ends of first crossbeam correspond the setting with two boundary beams respectively, and the distance between the both ends of first crossbeam is less than or equal to the distance between two boundary beams.
Further, the upper surface of the first cross beam is flush with the upper surface of the rocker.
According to another aspect of the present invention, there is provided a rail vehicle comprising a body structure and an undercarriage assembly coupled to the body structure, the undercarriage assembly being as described above.
By applying the technical scheme of the invention, the beam assembly comprises the first beam and the second beam, and the first beam and the second beam are sequentially arranged in the height direction of the lower beams, so that the first beam and the second beam are both positioned in a space formed by the two lower boundary beams, and an installation cavity is formed between the first beam and the second beam, further, when the floor is installed in the installation cavity of the beam assembly, the height of the upper surface of the floor is lower than that of the upper surface of the lower boundary beam, and compared with the prior art that the floor is directly paved above the beams, the space in the vehicle is increased under the condition of ensuring that the height of the underframe assembly is not increased. Further, at least part of the floor is arranged in the mounting cavity in a penetrating mode, and the floor clamp is arranged between the first cross beam and the second cross beam, so that the mounting strength of the floor is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of an embodiment of an undercarriage assembly of a rail vehicle according to the invention (wherein the floor is shown);
FIG. 2 is a partial schematic view of the cross rail assembly of the undercarriage assembly of FIG. 1 shown in engagement with a floor;
FIG. 3 shows a schematic structural view of a first beam of the beam assembly of FIG. 2;
FIG. 4 shows a schematic structural view of a second beam of the beam assembly of FIG. 2; and
figure 5 shows a cross-sectional view of the undercarriage assembly of figure 1 taken along line D-D.
Wherein the figures include the following reference numerals:
20. a lower edge beam; 40. a beam assembly; 41. a first cross member; 411. a U-shaped beam; 412. a connecting beam; 42. a second cross member; 422. a first horizontal beam; 423. a vertical beam; 424. a second horizontal beam; 425. a wire passing groove; 43. a floor board.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention and the embodiment of the present invention, as shown in fig. 1, the length direction of the chassis assembly is referred to as the X direction, and the width direction of the chassis assembly is referred to as the Y direction.
As shown in fig. 1 and 2, an embodiment of the present invention provides an undercarriage assembly for a rail vehicle. The undercarriage assembly includes a sill 20 and a cross-member assembly 40. The number of the lower edge beams 20 is two, and the two lower edge beams 20 are arranged at intervals; the beam assemblies 40 are arranged between the two lower edge beams 20, the beam assemblies 40 are multiple, and the beam assemblies 40 are arranged at intervals along the length direction of the lower edge beams 20; in the height direction of the rocker 20, at least one cross beam assembly 40 includes a first cross beam 41 and a second cross beam 42 disposed below the first cross beam 41, the first cross beam 41 and the second cross beam 42 form an installation cavity, and a part of a floor 43 of the rail vehicle is inserted into the installation cavity.
In this application, the beam assembly 40 includes first crossbeam 41 and second crossbeam 42, in the direction of height of lower boundary beam 20, first crossbeam 41 and second crossbeam 42 set gradually, thereby first crossbeam 41 and second crossbeam 42 all are located the space that two lower boundary beams 20 formed, and form the installation cavity between first crossbeam 41 and the second crossbeam 42, and then when installing floor 43 to the installation cavity of beam assembly 40, the height of the upper surface of floor 43 is less than the height of the upper surface of lower boundary beam 20, for directly laying the floor in the top of crossbeam among the prior art, in this application under the circumstances of guaranteeing not to increase the chassis assembly height, the space of vehicle inside has been increased. Further, at least part of the floor 43 is arranged in the mounting cavity in a penetrating mode, and the floor 43 is clamped between the first cross beam 41 and the second cross beam 42, so that the mounting strength of the floor 43 is improved.
As shown in fig. 2 and 3, in the embodiment of the present invention, the first cross member 41 includes a U-shaped beam 411 and a connection beam 412 connected to the U-shaped beam 411, and the connection beam 412 is used to connect to the floor 43.
Specifically, the U-shaped beam 411 of the present application includes two vertical sections opposite to each other and a horizontal section connecting the two vertical sections, wherein one of the two vertical sections is connected to the connection beam 412, and the vertical section has a height dimension larger than that of the other vertical section.
Through the arrangement, the strength of the U-shaped beam 411 is good, and the strength requirement of the underframe assembly of the railway vehicle is met. Furthermore, the connecting beam 412 is a flat plate structure, and the connecting beam 412 is in surface-to-surface contact with the floor 43, so that the connecting strength between the first cross beam 41 and the floor 43 is improved.
Specifically, in the embodiment of the present invention, the U-shaped beam 411 and the connecting beam 412 are integrally formed.
The whole strength of the first cross beam 41 is guaranteed through the arrangement, the processing is convenient, and the whole performance of the first cross beam 41 is good.
Of course, in an alternative embodiment of the present invention, which is not shown, the U-shaped beam 411 and the connecting beam 412 may be provided separately, as long as the connection strength between the U-shaped beam 411 and the connecting beam 412 can be ensured.
As shown in fig. 2 and 4, in the embodiment of the present invention, the cross-sectional shape of the second cross member 42 in the width direction of the underframe assembly is Z-shaped.
The arrangement enables the strength of the second cross beam 42 to be high, and compared with the cross beam in the prior art which is generally C-shaped, the Z-shaped second cross beam 42 of the present application can better meet the strength and rigidity requirements of the underframe assembly of the railway vehicle.
As shown in fig. 4, in the embodiment of the present invention, the second cross beam 42 includes a first horizontal beam 422, a vertical beam 423, and a second horizontal beam 424 connected in sequence, the first horizontal beam 422 and the second horizontal beam 424 are respectively located at two sides of the vertical beam 423, and the first horizontal beam 422 is used for connecting with a side of the floor 43 away from the first cross beam 41.
In the present application, the first horizontal beam 422 and the second horizontal beam 424 are disposed on two sides of the vertical beam 423, and a connection portion where the first horizontal beam 422 is connected to the floor 43 is in surface-to-surface contact, so that the connection strength between the first horizontal beam 422 and the floor 43 is good.
Preferably, in the embodiment of the present invention, the first horizontal beam 422, the vertical beam 423, and the second horizontal beam 424 are an integrally formed structure.
The overall strength of the first cross beam 41 is guaranteed through the arrangement, the processing is convenient, and the integrity of the first cross beam 41 is good.
As shown in fig. 4, in the embodiment of the present invention, the second cross beam 42 is provided with a wire passing groove 425, and the wire passing groove 425 penetrates through the second horizontal beam 424 and extends to the vertical beam 423.
Specifically, the lower part of the underframe assembly can be passed through by the wiring harness, and since the second cross beam 42 is located below the floor 43, the wiring groove 425 is arranged on the second cross beam 42, so that the wiring harness can be conveniently penetrated out of the wiring groove 425, the wiring of the rail vehicle is facilitated, and the wiring harness is convenient to store. Furthermore, the wiring harness is accommodated in the wiring groove 425, so that the wiring harness can be prevented from occupying the space below the underframe assembly, the structure of the underframe assembly is compact, and the integrity is good.
Preferably, in the embodiment of the present invention, the floor panel 43 is connected to the first cross member 41 by welding, and the floor panel 43 is connected to the second cross member 42 by welding.
The arrangement ensures the connection strength between the floor 43 and the beam assembly 40, and the connecting beam 412 of the first beam 41 is in surface-to-surface contact with the floor 43, and the first horizontal beam 422 of the second beam 42 is in surface-to-surface contact with the floor 43, so that the welding is facilitated. Further, the floor 43 is sandwiched between the first cross member 41 and the second cross member 42, the second cross member 42 supports the floor 43, and the floor 43 is firmly installed.
Preferably, in the embodiment of the present invention, the floor panel 43 is a corrugated panel. The corrugated plate has good strength, and the use strength of the floor 43 is ensured.
As shown in fig. 1, in the embodiment of the present invention, opposite ends of the first cross member 41 are respectively disposed corresponding to the two lower side members 20 in the width direction of the underframe assembly, and the distance between the two ends of the first cross member 41 is less than or equal to the distance between the two lower side members 20.
Preferably, the first cross member 41 of the present invention has opposite ends in abutting contact with the two rocker members 20, respectively. The whole width of chassis subassembly has been guaranteed in the above-mentioned setting, and first crossbeam 41 is connected with two lower boundary beam 20 butt, except that second crossbeam 42 to the supporting role of first crossbeam 41, with the first crossbeam 41 be connected the lower boundary beam 20 also can play the supporting role to first crossbeam 41, further guaranteed the joint strength of first crossbeam 41 with lower boundary beam 20, can effectively support the structure and the device that set up on chassis subassembly upper portion.
Further, the upper surface of the first cross member 41 is disposed flush with the upper surface of the rocker 20.
The installation of chassis subassembly upper portion equipment is convenient for in above-mentioned setting, and the roughness is better, and equipment fixing is firm. Furthermore, the arrangement enables the upper surface of the first cross beam 41 and the upper surface of the lower side beam 20 to form a plane grid structure, the supporting strength is good, and the requirements of the underframe assembly on strength and rigidity are met.
The embodiment of the invention also provides the railway vehicle. The rail vehicle of this embodiment includes body construction and the chassis subassembly that is connected with body construction, and the chassis subassembly is above-mentioned chassis subassembly.
The installation cavity is formed between first crossbeam 41 and the second crossbeam 42 of this application, and then when installing floor 43 to the installation cavity of crossbeam subassembly 40, the height that highly is less than the upper surface of lower boundary beam 20 of the upper surface of floor 43, directly lays the floor in the top of crossbeam for among the prior art, has increased the inside space of vehicle under the circumstances of guaranteeing not to increase chassis subassembly height in this application. Further, at least part of the floor 43 is arranged in the mounting cavity in a penetrating mode and clamped between the first cross beam 41 and the second cross beam 42, and mounting strength of the floor 43 is improved. Therefore, the rail vehicle with the underframe assembly also has the advantages.
As shown in fig. 5, a cross-sectional view of the mounting of the base plate 43 to the undercarriage assembly. As best seen in fig. 5, the upper surface of the bottom plate 43 is lower than the upper surface of the rocker 20, forming a recessed mounting structure. The arrangement increases the inner space of the vehicle on the basis of not increasing the overall height of the underframe assembly.
The technical scheme of the application is realized through the following modes: the beam assembly of the present application includes a first beam 41 located above and a second beam 42 located below. The floor 43 is sandwiched between the first cross member 41 and the second cross member 42, and the floor 43 is located in the middle of the underframe assembly in the height direction of the rocker 20, and is the main load-bearing structure of the entire railway vehicle. The floor 43 in this application is the corrugated metal plate, and all pass through resistance spot welding's mode welded connection between floor 43 and first crossbeam 41 and the second crossbeam 42. The joints of the floor 43 and the lower edge beams 20 on the two sides are of hem structures, the floor 43 and the lower edge beams 20 are connected into a whole through resistance spot welding, the first cross beam 41 and the lower edge beams 20 are connected through L-shaped angle iron welding, and the second cross beam 42 and the lower edge beams 20 are connected through L-shaped angle iron welding, so that the assembly of the underframe assembly is completed.
It can be seen from the above description that the beam assembly includes first crossbeam and second crossbeam, in the direction of height of rocker, first crossbeam and second crossbeam set gradually, thereby first crossbeam and second crossbeam all are located the space that two rocker formed, and form the installation cavity between first crossbeam and the second crossbeam, and then when installing floor to beam assembly's installation cavity, the height that highly is less than the upper surface of rocker of upper surface on floor, directly lay the floor in the top of crossbeam for among the prior art, guarantee in this application not to increase the inside space of vehicle under the circumstances of chassis assembly height. Further, at least part of the floor is arranged in the mounting cavity in a penetrating mode, and the floor clamp is arranged between the first cross beam and the second cross beam, so that the mounting strength of the floor is improved.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. An undercarriage assembly for a rail vehicle, the undercarriage assembly comprising:
the number of the lower edge beams (20) is two, and the two lower edge beams (20) are arranged at intervals;
the beam assemblies (40) are arranged between the two lower edge beams (20), the number of the beam assemblies (40) is multiple, and the beam assemblies (40) are arranged at intervals along the length direction of the lower edge beams (20);
in the height direction of the lower edge beam (20), at least one beam assembly (40) comprises a first beam (41) and a second beam (42) arranged below the first beam (41), the first beam (41) and the second beam (42) form an installation cavity, and a part of a floor (43) of the railway vehicle penetrates through the installation cavity.
2. Undercarriage assembly according to claim 1, characterized in that the first cross member (41) comprises a U-shaped beam (411) and a connecting beam (412) connected to the U-shaped beam (411), the connecting beam (412) being adapted to be connected to the floor panel (43).
3. The undercarriage assembly of claim 2, wherein the U-shaped beam (411) and the connecting beam (412) are of an integrally formed structure.
4. The undercarriage assembly of claim 1 wherein the cross-sectional shape of the second cross member (42) is Z-shaped in a width direction of the undercarriage assembly.
5. The undercarriage assembly according to claim 4, wherein the second cross member (42) comprises a first horizontal beam (422), a vertical beam (423) and a second horizontal beam (424) connected in sequence, the first horizontal beam (422) and the second horizontal beam (424) being located on both sides of the vertical beam (423), respectively, the first horizontal beam (422) being adapted to be connected to a side of the floor panel (43) remote from the first cross member (41).
6. The undercarriage assembly of claim 5 wherein the first horizontal beam (422), the vertical beam (423), and the second horizontal beam (424) are an integrally formed structure.
7. The underframe assembly of claim 5, wherein a wire passing groove (425) is formed in the second cross beam (42), and the wire passing groove (425) penetrates through the second horizontal beam (424) along the length direction of the underframe assembly and extends to the vertical beam (423).
8. Undercarriage assembly according to any of the claims 1-7, characterized in that a welded connection between the floor panel (43) and the first cross member (41) and/or a welded connection between the floor panel (43) and the second cross member (42).
9. The undercarriage assembly according to any of the claims 1-7, characterized in that the floor panels (43) are corrugated panels.
10. The undercarriage assembly according to any one of claims 1-7 wherein, in a width direction of the undercarriage assembly, opposite ends of the first cross member (41) are respectively disposed corresponding to the two lower side members (20), and a distance between the opposite ends of the first cross member (41) is smaller than or equal to a distance between the two lower side members (20).
11. The undercarriage assembly according to any of claims 1-7 wherein an upper surface of the first cross member (41) is arranged flush with an upper surface of the rocker (20).
12. A rail vehicle comprising a vehicle body structure and an undercarriage assembly connected to said vehicle body structure, characterized in that said undercarriage assembly is an undercarriage assembly according to any of claims 1-11.
CN201811038271.0A 2018-09-06 2018-09-06 Railway vehicle's chassis subassembly and railway vehicle Active CN109109892B (en)

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CN201811038271.0A CN109109892B (en) 2018-09-06 2018-09-06 Railway vehicle's chassis subassembly and railway vehicle
US16/185,309 US20190144011A1 (en) 2018-09-06 2018-11-09 Chassis Component of Railway Vehicle, and Railway Vehicle

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CN109109892B true CN109109892B (en) 2020-04-14

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