CN213442549U - Vehicle chassis and vehicle - Google Patents
Vehicle chassis and vehicle Download PDFInfo
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- CN213442549U CN213442549U CN202022106633.4U CN202022106633U CN213442549U CN 213442549 U CN213442549 U CN 213442549U CN 202022106633 U CN202022106633 U CN 202022106633U CN 213442549 U CN213442549 U CN 213442549U
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Abstract
The utility model provides a vehicle chassis and vehicle, vehicle chassis include draw beam and well roof beam, and the draw beam setting is at the tip of well roof beam, and well roof beam is made by C shaped steel, and the tip of well roof beam has first connection terminal surface, and first connection terminal surface sets up with ground is first predetermined contained angle, and well roof beam is through first connection terminal surface and draw beam welded connection. The traction beam comprises a web plate, the web plate is provided with a second connecting end surface, the web plate is connected with the middle beam through the second connecting end surface, and the second connecting end surface and the ground are arranged at a second preset included angle; the first connecting end face and the second connecting end face are arranged in parallel, and the middle beam is welded on the second connecting end face through the first connecting end face. The utility model discloses a vehicle chassis has solved the complicated problem of vehicle chassis structure among the prior art.
Description
Technical Field
The utility model relates to a vehicle technical field particularly, relates to a vehicle chassis and vehicle.
Background
At present, a railway wagon mainly adopts a B-shaped steel center sill structure or an assembly welding center sill structure, and the thickness of the B-shaped steel center sill structure in the whole length direction needs to be consistent due to the limitation of a manufacturing process, so that the position of a traction beam with severe stress cannot be locally thickened, the stress of the middle part is smaller and locally thinned, and the structure optimization and the application of a light weight technology are not facilitated; in addition, when the B-shaped steel center sill structure is connected with the bathtub structure, accessory parts need to be added, the manufacturing process is complex, and the reliability is low.
In addition, the thickness and the shape of the upper cover plate, the lower cover plate and the web plate can be freely selected by the assembly welding middle beam structure, local structure strengthening and optimization are facilitated, but the structure assembly process is complex, the welding workload is large, the structure reliability is poor, and the manufacturing cost is high, so that the existing vehicle underframe comprising the middle beam structure is complex in structure and difficult to manufacture.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a vehicle chassis and a vehicle, in order to solve the problem of the complex structure of the vehicle chassis in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a vehicle underframe comprising a draft sill and a center sill, the draft sill being provided at an end portion of the center sill, the center sill being made of C-section steel.
Furthermore, the end of the middle beam is provided with a first connecting end surface, and the first connecting end surface and the ground are arranged at a first preset included angle.
Furthermore, the middle beam is connected with the traction beam through the first connecting end face in a welding mode.
Further, the draft sill comprises a web plate, the web plate is provided with a second connecting end face, the web plate is connected with the middle beam through the second connecting end face, and the second connecting end face and the ground are arranged at a second preset included angle.
The vehicle underframe further comprises a sleeper beam and a cross beam, and the second connecting end face is arranged between the sleeper beam and the cross beam.
Furthermore, the first connecting end face and the second connecting end face are arranged in parallel, and the middle beam is welded on the second connecting end face through the first connecting end face.
Furthermore, the draft sill comprises an upper cover plate and a lower cover plate, wherein a first splicing portion is arranged on the upper cover plate and welded to the center sill through the first splicing portion, a second splicing portion is arranged on the lower cover plate and welded to the center sill through the second splicing portion, and the first splicing portion and the second splicing portion are arranged at intervals in the extending direction of the center sill.
Further, the draw beam is two, and two draw beams set up respectively at the both ends of center sill, and the vehicle chassis still includes: the two boundary beams are respectively arranged on two sides of the middle beam, and two ends of the boundary beams are respectively connected with the two traction beams.
Further, the vehicle underframe further comprises two bathtub type structures, the two bathtub type structures are respectively arranged in the space between the middle beam and the two side beams, and the bathtub type structures are provided with containing spaces for bearing cargos.
Furthermore, one side of the bathtub type structure is welded on one side of the middle beam, and the other side of the bathtub type structure is welded on one side of the edge beam.
According to another aspect of the present invention, there is provided a vehicle, comprising a vehicle chassis, the vehicle chassis being the vehicle chassis described above.
Use the technical scheme of the utility model vehicle chassis, this vehicle chassis mainly are used on railway freight car, and the well girder construction of this vehicle chassis adopts C shaped steel roof beam, and C shaped steel roof beam simple structure directly adopts the standard component can, be convenient for and draw beam and bathtub type structural connection adopt C type cold-formed steel roof beam, and light in weight, structure atress are reasonable, and section form is convenient to hand over with other accessories such as bathtub type structure, and manufacturing process is simple, the structure is reliable, low in manufacturing cost, so the utility model discloses a vehicle chassis has solved the complicated problem of vehicle chassis structure among the prior art.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, 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 partial structural schematic view of an embodiment of a vehicle chassis according to the invention;
figure 2 shows a schematic structural view of an embodiment of the centre sill structure of the present invention;
FIG. 3 illustrates a schematic view of a first embodiment of a vehicle undercarriage of the present invention;
FIG. 4 illustrates another perspective view schematic of a first vehicle undercarriage embodiment of the present invention;
fig. 5 shows a schematic view of an embodiment of a second vehicle chassis according to the invention;
fig. 6 shows another schematic view of an embodiment of a second vehicle chassis according to the invention;
FIG. 7 illustrates a cross-sectional view at A-A of the vehicle undercarriage of FIG. 5 in accordance with the present invention;
fig. 8 illustrates a cross-sectional view at B-B of the vehicle undercarriage of fig. 5 in accordance with the present invention.
Wherein the figures include the following reference numerals:
10. a middle beam; 11. a first connection end face; 12. a first splice; 13. a second splice; 20. a trailing beam; 21. an upper cover plate; 22. a lower cover plate; 23. a web; 231. a second connection end face; 30. a boundary beam; 40. a bathtub type structure; 50. a bolster; 60. a cross member.
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 accompanying drawings in conjunction with embodiments.
The utility model provides a vehicle underframe, including draw beam 20 and centre sill 10, please refer to fig. 1 to 8, draw beam 20 sets up the tip at centre sill 10, and centre sill 10 is made by C shaped steel.
The utility model provides a vehicle chassis, this vehicle chassis mainly used are on railway freight car, and the well girder construction of this vehicle chassis adopts C shaped steel roof beam, and C shaped steel roof beam simple structure directly adopts the standard component can, be convenient for be connected with draw beam 20 and bathtub type structure 40, adopt C type cold-formed steel roof beam, light in weight, structure atress are reasonable, and section form is convenient to hand over with other accessories such as bathtub type structure, and manufacturing process is simple, the structure is reliable, low in manufacturing cost, so the utility model discloses a vehicle chassis has solved the complicated problem of vehicle chassis structure among the prior art.
The end of the center sill 10 has a first connection end surface 11, and the first connection end surface 11 is disposed at a first predetermined angle with the ground. The centre sill 10 is connected with the draft sill 20 by welding through the first connecting end face 11. The draft sill 20 includes a web 23, the web 23 has a second connecting end 231, the web 23 is connected to the center sill 10 through the second connecting end 231, wherein the second connecting end 231 is disposed at a second predetermined angle with respect to the ground. The first connecting end surface 11 is disposed parallel to the second connecting end surface 231, and the center sill 10 is welded to the second connecting end surface 231 through the first connecting end surface 11. The draft sill 20 includes an upper cover plate 21 and a lower cover plate 22, a first splice portion 12 is provided on the upper cover plate 21 to be welded to the center sill 10 through the first splice portion 12, and a second splice portion 13 is provided on the lower cover plate 22 to be welded to the center sill 10 through the second splice portion 13, wherein the first splice portion 12 is provided at an interval from the second splice portion 13 in the extending direction along the center sill 10.
When the center sill of the vehicle underframe in the embodiment is connected with the traction beam, a welding form is adopted, and the end part of the center sill is welded with the traction beam by adopting an inclined plane, so that the welding connection area of the center sill and the traction beam is increased, and the connection reliability is ensured. Specifically, the draft sill in this embodiment includes upper cover plate, lower cover plate and web, and the web adopts the inclined plane welding with the center sill, and upper cover plate and lower cover plate adopt the fissure of displacement welding with the center sill, have increased the joint strength of center sill and draft sill, have strengthened the bulk strength of vehicle chassis.
The vehicle underframe further includes a bolster 50 and a cross member 60, and the second connection end surface 231 is disposed between the bolster 50 and the cross member 60.
The splicing positions of the traction beam web plate, the lower cover plate and the C-shaped cold-bending middle beam are arranged in the area between the sleeper beam 50 and the cross beam 60, the splicing positions of the traction beam lower cover plate and the C-shaped cold-bending middle beam are arranged between the double bathtubs near the end beam, the traction beam web plate and the C-shaped cold-bending middle beam are in an oblique connection mode, the stress of the splicing area is small, the assembling and welding process is simple, and the structural reliability is high.
The draft sill 20 is two, and two draft sills 20 set up respectively at the both ends of center sill 10, and the vehicle chassis still includes: two boundary beams 30, two boundary beams 30 are respectively arranged at two sides of the middle beam 10, and two ends of the boundary beams 30 are respectively connected with the two traction beams 20.
The vehicle underframe in the embodiment comprises two traction beams, wherein the two traction beams are respectively arranged at two ends of the middle beam and are respectively connected with the middle beam in an inclined plane welding mode.
The vehicle underframe further comprises two tub-shaped structures 40, the two tub-shaped structures 40 being arranged in the space between the centre sill 10 and the two edge sills 30, respectively, wherein the tub-shaped structures 40 have a receiving space for carrying goods.
The vehicle underframe in this embodiment is also provided with two tub-type structures on both sides of the center sill, the tub-type structure 40 being similar to a bathtub, the tub-type structure having an accommodating space to increase the space for carrying cargo. The side welded connection of bathtub type structure and C shaped steel roof beam, the opening of C shaped steel is towards the below of vehicle chassis.
One side of the tub-type structure 40 is welded to one side of the center sill 10 and the other side of the tub-type structure 40 is welded to one side of the side sill 30.
The vehicle underframe in the embodiment comprises two traction beams, two boundary beams and a middle beam, wherein the two boundary beams and the two traction beams are connected in an ending mode to form a rectangular frame, and the middle beam is arranged in the middle of the rectangular frame along the length direction of the vehicle underframe.
The utility model also provides a vehicle, including the vehicle chassis, the vehicle chassis is foretell vehicle chassis.
The utility model discloses a bathtub structure is used in the vehicle technology field, the setting is on the vehicle chassis, in order to increase the storing space of vehicle, this bathtub structure includes the arc subassembly, and set up the first end plate and the second end plate at both ends around the arc subassembly, enclose into the recessed storing space to the vehicle chassis jointly, the first end plate that this bathtub structure is located the front side sets up aslope for ground, thereby improve the atress situation, it is concrete, first end plate inclines downwards from vehicle chassis front side to incline, avoided sending the problem of frontal collision with subaerial barrier, compare the vertically setting simultaneously, the space between front side wheel and the bathtub structure has been increased to the setting aslope, the easy access, the problem of the easy damage of bathtub structure on the vehicle chassis among the prior art has been solved through the aforesaid setting.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
the middle beam is a main stressed part of the vehicle and bears vertical and longitudinal loads and combined loads of the two, and particularly the stress level of the traction beam is high. The draw beam is the main accessory interface position of coupling, buffer simultaneously, and overall dimension receives above-mentioned standard part restriction, and the well roof beam adopts C type cold-formed girder steel and assembly welding draw beam integrated configuration, strengthens local structure according to the atress condition, reduces stress level, improves structural reliability, and C type cold-formed well roof beam manufacturing process is simple, does benefit to and hands over with bathtub type structure, and this structural style assembly welding well roof beam structure is reliable, manufacturing process is simple, low in manufacturing cost, comprehensive economic benefits is obvious.
The C-shaped cold bending middle beam has the advantages of light weight, reasonable structural stress, convenient connection with other accessories such as a bathtub structure in a section form, simple manufacturing process, reliable structure and low manufacturing cost.
By adopting the assembly welding type draw beam, the severe stress condition of the draw beam is improved and the reliability of parts is improved by changing the section form and the local thickness of the plate at the severe local stress position.
The splicing positions of the traction beam web plate, the lower cover plate and the C-shaped cold bending middle beam are arranged in the area between the sleeper beam and the cross beam, the splicing positions of the traction beam lower cover plate and the C-shaped cold bending middle beam are arranged between the double bathtubs near the end beam, the traction beam web plate and the C-shaped cold bending middle beam are in an oblique connection mode, the stress of the splicing area is small, the assembling and welding process is simple, and the structural reliability is high.
The utility model discloses a vehicle chassis interlude adopts C type cold-formed steel, and both ends draw beam adopts the assembly welding formula structure, and the concatenation position is selected the less region of stress between sleeper beam and crossbeam.
The C-shaped cold-bending middle beam is formed by one-step bending and pressing, the whole section is free of welding, the assembly welding type middle beam adopts a structure that an upper cover plate, a lower cover plate and a web plate are welded, the number of welding seams is large, the welding quantity is large, the assembly and welding process is complex, the structural reliability is poor, and the manufacturing cost is high.
The C-shaped cold bending center sill is directly lapped with the bathtub structure, the connection mode is simple and reliable, auxiliary parts are required to be added on the B-shaped steel center sill to be connected with the bathtub structure, the volume of the vehicle is not sufficient by utilizing the limit expansion, and the manufacturing process is complex.
Through computer simulation analysis, test data and application experience comparison analysis, the splicing positions of the web plate and the lower cover plate of the traction beam and the C-shaped cold-bending middle beam are determined to be in the area between the sleeper beam and the cross beam, the splicing positions of the lower cover plate of the traction beam and the C-shaped cold-bending middle beam are determined to be between the double bathtubs near the end beam, the splicing positions of the upper cover plate, the lower cover plate, the web plate and the C-shaped cold-bending middle beam are staggered, the web plate of the traction beam and the C-shaped cold-bending middle beam are in an oblique connection mode, the stress of the splicing area is small.
The utility model develops a C-shaped cold bending middle beam and assembly welding type draw beam combined structure for a railway wagon, optimizes the structure and carries out the lightweight design of a wagon body; the middle part is of a C-shaped cold bending structure, the manufacturing process is simple, and the connection with the bathtub structure is convenient; the two ends are of a group welding type box structure, and the structure is locally reinforced, so that the stress state of the structure is optimal; the areas with small stress are selected for mutual staggered splicing, and the web plates adopt an oblique connection mode, so that overlarge or concentrated stress is avoided, and the structural reliability is improved.
Compared with the assembly welding type center sill, the C-shaped cold bending center sill has the advantages of no welding, simple assembly process, reliable structure and low manufacturing cost.
Compared with a Z-shaped steel center beam, the C-shaped cold bending center beam is simple and reliable in connection with a bathtub structure, does not need to increase accessory parts, fully expands the volume of a vehicle by utilizing a limit, improves the load of the vehicle, and has good comprehensive economic benefit.
The splicing position of the traction beam and the middle beam is optimized, the traction beam web and the C-shaped cold-bending middle beam are in an oblique connection mode, the structure is safe and reliable, the manufacturing process is simple, and the cost is low.
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.
Unless specifically stated otherwise, 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. 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 should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, 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 simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted 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.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
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 if not stated otherwise, the terms have no special meaning, 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 (11)
1. A vehicle underframe comprising a draft sill (20) and a center sill (10), characterized in that the draft sill (20) is provided at the end of the center sill (10), and the center sill (10) is made of C-section steel.
2. The vehicle underframe according to claim 1, characterized in that the end of the center sill (10) has a first connection end face (11), the first connection end face (11) being arranged at a first predetermined angle with the ground.
3. The vehicle underframe according to claim 2, characterized in that the center sill (10) is welded to the traction beam (20) via the first connection end face (11).
4. The vehicle undercarriage of claim 2 wherein the trailing beam (20) comprises a web (23), the web (23) having a second connecting end surface (231), the web (23) being connected to the center sill (10) via the second connecting end surface (231), wherein the second connecting end surface (231) is disposed at a second predetermined angle to the ground.
5. The vehicle underframe according to claim 4, wherein said first connection end face (11) is arranged in parallel with said second connection end face (231), and said center sill (10) is welded to said second connection end face (231) through said first connection end face (11).
6. The vehicle underframe of claim 4, further comprising a bolster (50) and a cross member (60), wherein the second connection end surface (231) is disposed between the bolster (50) and the cross member (60).
7. The vehicle underframe according to claim 1, wherein the draft sill (20) comprises an upper cover plate (21) and a lower cover plate (22), a first splice (12) being provided on the upper cover plate (21) to be welded to the center sill (10) through the first splice (12), and a second splice (13) being provided on the lower cover plate (22) to be welded to the center sill (10) through the second splice (13), wherein the first splice (12) is provided at a distance from the second splice (13) in a direction along an extension of the center sill (10).
8. The vehicle underframe according to claim 1, wherein said draft sill (20) is two, two said draft sills (20) being respectively provided at both ends of said center sill (10), said vehicle underframe further comprising:
the two boundary beams (30) are respectively arranged on two sides of the middle beam (10), and two ends of each boundary beam (30) are respectively connected with the two traction beams (20).
9. The vehicle underframe according to claim 8, further comprising two tub-type structures (40), wherein the two tub-type structures (40) are respectively disposed in a space between the center sill (10) and the two side sills (30), wherein the tub-type structures (40) have a receiving space for carrying cargo.
10. The vehicle underframe according to claim 9, characterized in that one side of said tub-type structure (40) is welded to one side of said center sill (10) and the other side of said tub-type structure (40) is welded to one side of said side sill (30).
11. A vehicle comprising a vehicle chassis, characterized in that the vehicle chassis is a vehicle chassis according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106633.4U CN213442549U (en) | 2020-09-23 | 2020-09-23 | Vehicle chassis and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022106633.4U CN213442549U (en) | 2020-09-23 | 2020-09-23 | Vehicle chassis and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN213442549U true CN213442549U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022106633.4U Active CN213442549U (en) | 2020-09-23 | 2020-09-23 | Vehicle chassis and vehicle |
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| Country | Link |
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| CN (1) | CN213442549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787274A (en) * | 2021-08-26 | 2021-12-14 | 中车常州车辆有限公司 | Method for splicing middle beams of large and large vehicle |
-
2020
- 2020-09-23 CN CN202022106633.4U patent/CN213442549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787274A (en) * | 2021-08-26 | 2021-12-14 | 中车常州车辆有限公司 | Method for splicing middle beams of large and large vehicle |
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