US20190144011A1

US20190144011A1 - Chassis Component of Railway Vehicle, and Railway Vehicle

Info

Publication number: US20190144011A1
Application number: US16/185,309
Authority: US
Inventors: Xiaojie Wang; Aiqin Tian; Haiyang Yu; Yuwen Liu; Qi Yuan
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2018-09-06
Filing date: 2018-11-09
Publication date: 2019-05-16
Also published as: CN109109892A; CN109109892B

Abstract

Some embodiments of the present disclosure provide a chassis component of a railway vehicle, and a railway vehicle. The chassis component includes: two lower boundary beams, the two lower boundary beams being provided at an interval; and a cross beam component, the cross beam component being provided between the two lower boundary beams, wherein there are a plurality of cross beam components, and the plurality of cross beam components are provided along a length direction of each of the lower boundary beams at an interval, wherein at least one cross beam component includes a first cross beam and a second cross beam provided below the first cross beam in a height direction of the each of the lower boundary beams, the first cross beam and the second cross beam form a mounting cavity, and a part of a floor of a railway vehicle penetrates into the mounting cavity.

Description

CROSS REFERENCE TO RELATED APPLICATION

This application is related to and claims the benefit of Chinese Patent Application Number 201811038271.0 filed on Sep. 6, 2018, the contents of which are incorporated herein by reference in their entirety.

TECHNICAL FIELD

The present disclosure relates to a field of railway vehicles, and in particular to a chassis component of a railway vehicle, and a railway vehicle.

BACKGROUND

A chassis component which serves as a main bearing structure of a vehicle body not only bears the weight of the vehicle body and the weight of all devices in the vehicle, but also transfers a traction force and a braking force as well as a complicated dynamic stress. Therefore, the chassis component must have a sufficient strength and the rigidity.
In a stainless steel vehicle body of the related art, the chassis component includes two lower boundary beams and a plurality of cross beams, the plurality of cross beams are provided along a length direction of the lower boundary beam at an interval, a cross section of each cross beam is of C-shaped, a metal floor covers the cross beams and the lower boundary beams, the metal floor is positioned above the cross beams and the lower boundary beams, and an internal space of the vehicle is separated from an under-vehicle device below the chassis component through the metal floor, so as to achieve the effects of noise reduction and flame resistance. However, due to a height limitation of the vehicle, when the floor is paved above the cross beams and the lower boundary beams, the internal space of the vehicle is limited accordingly, and the mounting space requirements for a storage battery and other devices cannot be met.

SUMMARY

Some embodiments of the present disclosure provide a chassis component of a railway vehicle and a railway vehicle, intended to solve the problem in the related art that an internal space of a vehicle cannot be ensured on the premise of ensuring the connecting strength between a cross beam and a floor.
To this end, some embodiments of the present disclosure provide a chassis component of a railway vehicle. The chassis component includes: a lower boundary beam, wherein there are two lower boundary beams, the two lower boundary beams being provided at an interval; and a cross beam component, the cross beam component being provided between the two lower boundary beams, wherein there is a plurality of cross beam components, and the plurality of cross beam components are provided along a length direction of each of the lower boundary beams at an interval, wherein at least one cross beam component includes a first cross beam and a second cross beam provided below the first cross beam in a height direction of the each of the lower boundary beams, the first cross beam and the second cross beam form a mounting cavity, and a part of a floor of a railway vehicle is into the mounting cavity.
Some embodiments of the present disclosure provide a railway vehicle. The railway vehicle includes a vehicle body structure and a chassis component connected with the vehicle body structure, the chassis component being the above chassis component.
By applying an embodiment of the present disclosure, the cross beam component includes a first cross beam and a second cross beam, the first cross beam and the second cross beam being provided in sequence in the height direction of the lower boundary beam, so that the first cross beam and the second cross beam are both located in a space formed by the two lower boundary beams, and a mounting cavity is formed between the first cross beam and the second cross beam. Thus, when the floor is mounted in the mounting cavity of the cross beam component, a height of an upper surface of the floor is lower than a height of an upper surface of the each of the lower boundary beams. Compared with the related art in which the floor is directly paved above the cross beam, an embodiment of the present disclosure enlarges the internal space of the vehicle when ensuring that the height of the chassis component is not increased. Further, the floor at least partially penetrates into the mounting cavity, and the floor is sandwiched between the first cross beam and the second cross beam, thereby improving the mounting strength of the floor.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which constitute a part of this application, are used to provide a further understanding of some embodiments of the present disclosure, and the exemplary embodiments of the present disclosure and the description thereof are used to explain the present disclosure, but do not constitute improper limitations to the present disclosure. In the drawings:

FIG. 1 illustrates a structural schematic diagram of a chassis component of a railway vehicle according to an embodiment of the present disclosure (where a floor is illustrated);

FIG. 2 illustrates a partial structural schematic diagram of the cooperation of a cross beam component and a floor of the chassis component in FIG. 1;

FIG. 3 illustrates a structural schematic diagram of a first cross beam of the chassis component in FIG. 2;

FIG. 4 illustrates a structural schematic diagram of a second cross beam of the chassis component in FIG. 2; and

FIG. 5 illustrates a D-D direction sectional view of the chassis component in FIG. 1.

The drawings include the following reference signs:
20: lower boundary beam; 40: cross beam component; 41: first cross beam; 411: U-shaped beam; 412: connecting beam; 42: second cross beam; 422: first horizontal beam; 423: vertical beam; 424: second horizontal beam; 425: wire passage groove; 43: floor.

DETAILED DESCRIPTION OF THE EMBODIMENTS

It is to be noted that in the case of no conflict, the features in the embodiments and the embodiments in the present application may be combined with each other. The present disclosure is described below with reference to the drawings and in conjunction with the embodiments in detail.
The technical solutions in the embodiments of the present disclosure will be clearly and completely described herein below with the drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. The following description of at least one exemplary embodiment is only illustrative actually, and is not used as any limitation for the present disclosure and the application or use thereof. On the basis of the embodiments of the present disclosure, all other embodiments obtained on the premise of no creative work of those of ordinary skill in the art fall within the scope of protection of the present disclosure.
It is to be noted that terms used herein only aim to describe specific implementation manners, and are not intended to limit exemplar implementations of this application. Unless otherwise directed by the context, singular forms of terms used herein are intended to include plural forms. Besides, it will be also appreciated that when terms “contain” and/or “include” are used in the description, it is indicated that features, steps, operations, devices, assemblies and/or a combination thereof exist.
In some embodiments of the present disclosure, as shown in FIG. 1, a length direction of a chassis component is an X direction, and a width direction of the chassis component is a Y direction.
As shown in FIG. 1 and FIG. 2, an embodiment of the present disclosure provides a chassis component of a railway vehicle. The chassis component includes a lower boundary beam 20 and a cross beam component 40. There are two lower boundary beams 20, the two lower boundary beams 20 being provided at an interval. The cross beam component 40 is provided between the two lower boundary beams 20, there are a plurality of cross beam components 40, and the plurality of cross beam components 40 are provided along a length direction of each of the lower boundary beams 20, wherein at least one cross beam component 40 includes a first cross beam 41 and a second cross beam 42 provided below the first cross beam 41 in a height direction of the each of the lower boundary beams 20, the first cross beam 41 and the second cross beam 42 form a mounting cavity, and a part of the floor 43 of the railway vehicle is inserted into the mounting cavity.
In the present application, the cross beam component 40 includes a first cross beam 41 and a second cross beam 42, the first cross beam 41 and the second cross beam 42 being provided in sequence in the height direction of the each of the lower boundary beams 20, so that the first cross beam 41 and the second cross beam 42 are both located in a space formed by the two lower boundary beams 20, and a mounting cavity is formed between the first cross beam 41 and the second cross beam 42. Thus, when the floor 43 is mounted in the mounting cavity of the cross beam component 40, the height of an upper surface of the floor 43 is lower than the height of an upper surface of the each of the lower boundary beams 20. Compared with the related art in which the floor is directly paved above the cross beam, an embodiment of the present disclosure enlarges the internal space of the vehicle when ensuring that the height of the chassis component is not increased. In an exemplary embodiment, at least a part of the floor 43 penetrates into the mounting cavity, and the floor 43 is sandwiched between the first cross beam 41 and the second cross beam 42, thereby improving the mounting strength of the floor 43.
As shown in FIG. 2 and FIG. 3, in an embodiment of the present disclosure, the first cross beam 41 includes a U-shaped beam 411 and a connecting beam 412 connected with the U-shaped beam 411, the connecting beam 412 being connected with the floor 43.
In an exemplary embodiment, the U-shaped beam 411 includes two opposite vertical segments and a horizontal segment connecting the two vertical segments, wherein one of the two vertical segments is connected with the connecting beam 412, and a height size of the vertical segment is greater than a height size of the other vertical segment.
By means of the arrangement, the strength of the U-shaped beam 411 is good, and the strength requirements for the chassis component of the railway vehicle are met. In an exemplary embodiment, the connecting beam 412 is of 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.
In an embodiment of the present disclosure, the U-shaped beam 411 and the connecting beam 412 are connected together and form a whole structure.
The arrangement ensures the overall strength of the first cross beam 41, facilitates processing, and makes the integrity of the first cross beam 41 good.
Of course, in an alternative embodiment not illustrated in the present disclosure, the U-shaped beam 411 and the connecting beam 412 may be separately provided, as long as the connecting strength between the U-shaped beam 411 and the connecting beam 412 can be ensured.
As shown in FIG. 2 and FIG. 4, in an exemplary embodiment of the present disclosure, the cross section of the second cross beam 42 is Z-shaped in the width direction of the chassis component.
The arrangement makes the strength of the second cross beam 42 high. Compared with the related art in which the cross beam is usually C-shaped, the Z-shaped second cross beam 42 of an embodiment of the present disclosure can better meet the strength and rigidity requirements for the chassis component of the railway vehicle.
As shown in FIG. 4, in an exemplary embodiment of the present disclosure, 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 located on two sides of the vertical beam 423 respectively, and the first horizontal beam 422 is connected with one side, away from the first cross beam 41, of the floor 43.
In the embodiment, the first horizontal beam 422 and the second horizontal beam 424 are provided on two sides of the vertical beam 423, and a joint between the first horizontal beam 422 and the floor 43 is a surface-to-surface contact, so that the connecting strength between the first horizontal beam 422 and the floor 43 is better.
In an exemplary embodiment of the present disclosure, the first horizontal beam 422, the vertical beam 423 and the second horizontal beam 424 are connected together and form a whole structure.
The arrangement ensures the overall strength of the first cross beam 41, facilitates processing, and makes the integrity of the first cross beam 41 good.
As shown in FIG. 4, in an exemplary embodiment of the present disclosure, the second cross beam 42 is provided with a wire passage groove 425, the wire passage groove 425 penetrating through the second horizontal beam 424 and extending to the vertical beam 423.
In an exemplary embodiment, a wire harness will pass through a lower part of the chassis component. Since the second cross beam 42 is located below the floor 43 and the wire passage groove 425 is provided on the second cross beam 42, the wire harness is convenient to penetrate out of the wire passage groove 425, which facilitates wiring of the railway vehicle and storage of the wire harness. Further, the wire harness is received in the wire passage groove 425, so that the wire harness is prevented from occupying a space below the chassis component and ensuring the compact structure and good integrity of the chassis component.
In an exemplary embodiment of the present disclosure, the floor 43 is welded to the first cross beam 41, and the floor 43 is welded to the second cross beam 42.
The arrangement ensures the connecting strength between the floor 43 and the cross beam component 40, the connecting beam 412 of the first cross beam 41 is in surface-to-surface contact with the floor 43, and the first horizontal beam 422 of the second cross beam 42 is also in surface-to-surface contact with the floor 43, thereby facilitating welding. In an exemplary embodiment, the floor 43 is sandwiched between the first cross beam 41 and the second cross beam 42, the second cross beam 42 supports the floor 43, and the floor 43 is firmly mounted.
In an exemplary embodiment of the present disclosure, the floor 43 is a corrugated plate. The strength of the corrugated plate is good, thereby ensuring the use strength of the floor 43.
As shown in FIG. 1, in an exemplary embodiment of the present disclosure, two opposite ends of the first cross beam 41 correspond to the two lower boundary beams 20 respectively along a width direction of the chassis component, and a distance between the two ends of the first cross beam 41 is smaller than or equal to a distance between the two lower boundary beams 20.
In an exemplary embodiment of the present disclosure, two opposite ends of the first cross beam 41 are abut against the two lower boundary beams 20 respectively. The arrangement ensures the overall width of the chassis component, and the first cross beam 41 abuts against the two lower boundary beams 20. Not only the second cross beam 42 supports the first cross beam 41, but also the lower boundary beams 20 connected with the first cross beam 41 may also support the first cross beam 41, so that the connecting strength between the first cross beam 41 and each of the lower boundary beams 20 is further ensured, and the structure and apparatus provided at an upper part of the chassis component may be effectively supported.
In an exemplary embodiment, an upper surface of the first cross beam 41 is on a same plane with an upper surface of each of the lower boundary beams 20.
The embodiment facilitates mounting of the device at the upper part of the chassis component, the flatness is better, and the device is steadily mounted. Further, the embodiment forms a planar grid structure by the upper surface of the first cross beam 41 and the upper surface of the each of the lower boundary beams 20, the supporting strength is good, and the requirements for the strength and rigidity of the chassis component are met.
The embodiment of the present disclosure also provides a railway vehicle. The railway vehicle of the present embodiment includes a vehicle body structure and a chassis component connected with the vehicle body structure, the chassis component being the above chassis component.
A mounting cavity is formed between the first cross beam 41 and the second cross beam 42 in some embodiments of the present disclosure. Thus, when the floor 43 is mounted in the mounting cavity of the cross beam component 40, the height of an upper surface of the floor 43 is lower than the height of an upper surface of the lower boundary beam 20. Compared with the related art in which the floor is directly paved above the cross beam, some embodiments of the present disclosure enlarges the internal space of the vehicle when ensuring that the height of the chassis component is not increased. In an exemplary embodiment, the floor 43 at least partially penetrates into the mounting cavity, and is sandwiched between the first cross beam 41 and the second cross beam 42, thereby improving the mounting strength of the floor 43. Therefore, the railway vehicle having the above chassis component also has the above advantages.
As shown in FIG. 5, a sectional view of mounting the floor 43 on the chassis component is shown. From FIG. 5, it can be clearly seen that the height of the upper surface of the floor 43 is lower than the height of the upper surface of each of the lower boundary beams 20 to form an embedded mounting structure. The embodiment increases the internal space of the vehicle without increasing the overall height of the chassis component.
The technical solution of the present application is implemented by using the following mode: the cross beam component of some embodiments includes a first cross beam 41 above and a second cross beam 42 below. The floor 43 is sandwiched between the first cross beam 41 and the second cross beam 42, and the floor 43 is located in a middle of the chassis component in the height direction of the each of the lower boundary beams 20 and is a main bearing structure of the entire railway vehicle. The floor 43 in an embodiment is a metal corrugated plate, and the floor 43 is welded to the first cross beam 41 and the second cross beam 42 in a resistance spot welding manner. The joint between the floor 43 and each of the lower boundary beams 20 on two sides is a folded edge structure, the floor 43 and the each of the lower boundary beams 20 is connected into a whole by resistance spot welding, the first cross beam 41 is welded to the each of the lower boundary beams 20 by L-shaped angle iron, and the second cross beam 42 is welded to the each of the lower boundary beams 20 by L-shaped angle iron, so as to complete assembling of the chassis component.
From the above description, it can be seen that the cross beam component includes a first cross beam and a second cross beam, the first cross beam and the second cross beam being provided in sequence in the height direction of the each of the lower boundary beams, so that the first cross beam and the second cross beam are both located in a space formed by the two lower boundary beams, and a mounting cavity is formed between the first cross beam and the second cross beam. Thus, when the floor is mounted in the mounting cavity of the cross beam component, the height of an upper surface of the floor is lower than the height of an upper surface of the each of the lower boundary beam. Compared with the related art in which the floor is directly paved above the cross beam, the embodiment enlarges the internal space of the vehicle when ensuring that the height of the chassis component is not increased. Further, the floor at least partially penetrates into the mounting cavity, and the floor is sandwiched between the first cross beam and the second cross beam, thereby improving the mounting strength of the floor.
The above is only the preferred embodiments of the present disclosure, not intended to limit the present disclosure. As will occur to those skilled in the art, the present disclosure is susceptible to various modifications and changes. Any modifications, equivalent replacements, improvements and the like made within the spirit and principle of the present disclosure shall fall within the scope of protection of the present disclosure.

Claims

What is claimed is:

1. A chassis component of a railway vehicle, comprising:

a lower boundary beam, wherein there are two lower boundary beams, the two lower boundary beams being provided at an interval; and

a cross beam component, the cross beam component being provided between the two lower boundary beams, wherein there is a plurality of cross beam components, and the plurality of cross beam components are provided along a length direction of each of the lower boundary beams at an interval,

wherein at least one cross beam component comprises a first cross beam and a second cross beam provided below the first cross beam in a height direction of the each of the lower boundary beams, the first cross beam and the second cross beam form a mounting cavity, and a part of a floor of a railway vehicle is inserted into the mounting cavity.

2. The chassis component as claimed in claim 1, wherein the first cross beam comprises a U-shaped beam and a connecting beam connected with the U-shaped beam, the connecting beam being used for connecting with the floor.

3. The chassis component as claimed in claim 2, wherein the U-shaped beam and the connecting beam are connected together and form a whole structure.

4. The chassis component as claimed in claim 1, wherein a cross section of the second cross beam is Z-shaped in a width direction of the chassis component.

5. The chassis component as claimed in claim 4, wherein the second cross beam comprises a first horizontal beam, a vertical beam and a second horizontal beam connected in sequence, wherein the first horizontal beam and the second horizontal beam are located on two sides of the vertical beam respectively, and the first horizontal beam is connected with one side, away from the first cross beam, of the floor.

6. The chassis component as claimed in claim 5, wherein the first horizontal beam, the vertical beam and the second horizontal beam are connected together and form a whole structure.

7. The chassis component as claimed in claim 5, wherein the second cross beam is provided with a wire passage groove, the wire passage groove penetrating through the second horizontal beam and extending to the vertical beam.

8. The chassis component as claimed in claim 1, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

9. The chassis component as claimed in claim 1, wherein the floor is a corrugated plate.

10. The chassis component as claimed in claim 1, wherein two opposite ends of the first cross beam correspond to the two lower boundary beams respectively along a width direction of the chassis component, and a distance between two ends of the first cross beam is smaller than or equal to a distance between the two lower boundary beams.

11. The chassis component as claimed in claim 1, wherein an upper surface of the first cross beam is on a same plane with an upper surface of each of the lower boundary beams.

12. The chassis component as claimed in claim 2, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

13. The chassis component as claimed in claim 3, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

14. The chassis component as claimed in claim 4, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

15. The chassis component as claimed in claim 5, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

16. The chassis component as claimed in claim 6, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

17. The chassis component as claimed in claim 7, wherein the floor is welded to the first cross beam, and/or, the floor is welded to the second cross beam.

18. The chassis component as claimed in claim 2, wherein two opposite ends of the first cross beam correspond to the two lower boundary beams respectively along a width direction of the chassis component, and a distance between two ends of the first cross beam is smaller than or equal to a distance between the two lower boundary beams.

19. The chassis component as claimed in claim 2, wherein an upper surface of the first cross beam is on a same plane with an upper surface of each of the lower boundary beams.

20. A railway vehicle, comprising a vehicle body structure and a chassis component connected with the vehicle body structure, wherein the chassis component is the chassis component as claimed in claim 1.