Vehicle energy absorption device, carriage and rail vehicle

Abstract

An embodiment of the present application provides a vehicle energy absorption device, a carriage, and a rail vehicle. The energy absorption device includes a first-stage energy absorption structure and a second-stage energy absorption structure. The first-stage energy absorption structure is fixed to the front end of the second-stage energy absorption structure. The cross-sectional area of the first-stage energy absorption structure is smaller than that of the second-stage energy absorption structure. The top surface of the first-stage energy absorption structure is lower than the top surface of the second-stage energy absorption structure. In the vehicle energy absorption device provided by the embodiment of the present application, the first-stage energy absorption structure and the second-stage energy absorption structure are asymmetrically arranged, which can leave some space vacant to make way for other components and improve the space utilization rate.

Description

Technical Field

[0001] This application relates to the technical field of rail transit, and particularly relates to a vehicle energy absorption device, a carriage and a rail vehicle. Background Art

[0002] An energy absorption device is a device installed at the front end of a rail vehicle for absorbing collision energy. Currently, the energy absorption device is usually a rectangular structure with rounded corners and is symmetrically arranged on the left and right at the front end of the vehicle to reduce the design difficulty and achieve the purpose of orderly and controllable structural deformation during the energy absorption process.

[0003] However, due to the limited space reserved between the driver's cab cover and the vehicle body, or when there are equipment under the driver's cab cover that cannot be relocated, the existing energy absorption device cannot increase the effective deformation stroke and thus cannot meet the requirements of the energy absorption index. Summary of the Invention

[0004] To solve one of the above technical defects, a vehicle energy absorption device, a carriage and a rail vehicle are provided in the embodiments of this application.

[0005] According to the first aspect of the embodiments of this application, a vehicle energy absorption device is provided, including: a first-stage energy absorption structure and a second-stage energy absorption structure, the first-stage energy absorption structure is fixed to the front end of the second-stage energy absorption structure; the cross-sectional area of the first-stage energy absorption structure is smaller than that of the second-stage energy absorption structure; the top surface of the first-stage energy absorption structure is lower than the top surface of the second-stage energy absorption structure.

[0006] According to the second aspect of the embodiments of this application, a carriage is provided, including: a driver's cab and a passenger compartment, and the vehicle energy absorption device as described above is arranged at the front end of the driver's cab.

[0007] According to the third aspect of the embodiments of this application, a rail vehicle is provided, including the carriage as described above.

[0008] By using the vehicle energy absorption device provided in the embodiments of this application, the first-stage energy absorption structure and the second-stage energy absorption structure are arranged asymmetrically, which can vacate some space to make way for other components and improve the space utilization rate. Description of the Drawings

[0009] The drawings described herein are used to provide a further understanding of this application, and constitute a part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0010] Figure 1 is a schematic structural diagram of a vehicle energy absorption device provided by the embodiments of this application;

[0011] Figure 2A three-dimensional view of a vehicle energy absorption device provided by an embodiment of the present application, installed in the driver's cab;

[0012] Figure 3 A side structural schematic diagram of a vehicle energy absorption device provided by an embodiment of the present application, installed in the driver's cab;

[0013] Figure 4 is Figure 3 a partial schematic diagram in;

[0014] Figure 5 An overall structural schematic diagram of an energy absorption connection framework of a vehicle energy absorption device provided by an embodiment of the present application.

[0015] Reference numerals:

[0016] 181 - First - stage energy absorption structure; 1811 - First - stage surface; 182 - Second - stage energy absorption structure; 1821 - Second - stage surface; 183 - Outer - side energy absorption structure; 184 - Bottom energy absorption structure; 185 - Energy absorption connection framework; 1851 - Upper part of the framework; 1852 - Middle part of the framework; 1853 - Lower part of the framework; 186 - Steering motor for the outer cover of the driver's cab. Detailed implementation manners

[0017] In order to make the technical solutions and advantages in the embodiments of the present application clearer and more understandable, the following further elaborates on the exemplary embodiments of the present application with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than an exhaustive list of all embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0018] In this embodiment, the length direction of the vehicle is called the longitudinal direction, the width direction of the vehicle is called the transverse direction, and the height direction of the vehicle is called the vertical or perpendicular direction.

[0019] As Figure 1 shown, an energy absorption device provided in this embodiment can be applied to a rail vehicle and is arranged at the front end of the driver's cab. The energy absorption device includes: a first - stage energy absorption structure 181 and a second - stage energy absorption structure 182. Among them, the second - stage energy absorption structure 182 is used to be installed at the front end of the vehicle. The first - stage energy absorption structure 181 is located at the front end of the second - stage energy absorption structure 182 and is fixed to the second - stage energy absorption structure 182. Outer - side energy absorption structures 183 are respectively arranged on the transverse two sides of the second - stage energy absorption structure 182, and bottom energy absorption structures 184 are respectively arranged below the outer - side energy absorption structures 183.

[0020] The cross-sectional area of the first-stage energy-absorbing structure 181 is smaller than that of the second-stage energy-absorbing structure 182, and the first-stage energy-absorbing structure 181 is arranged below the front end face of the second-stage energy-absorbing structure 182. Specifically, the top surface of the first-stage energy-absorbing structure 181 is lower than the top surface of the second-stage energy-absorbing structure 182, and the bottom surface of the first-stage energy-absorbing structure 181 is flush with the bottom surface of the second-stage energy-absorbing structure 182. This makes the first-stage energy-absorbing structure 181 and the second-stage energy-absorbing structure 182 form an asymmetric structure. The space at the top of the first-stage energy-absorbing structure 181 can be used to accommodate other components, improving space utilization.

[0021] In the specific implementation process, the energy-absorbing device is divided into two levels, the upper level includes the first-stage energy-absorbing structure 181, the second-stage energy-absorbing structure 182 and the outer-side energy-absorbing structure 183, and the lower level is the bottom energy-absorbing structure 184. The energy-absorbing structures of the two levels can be designed according to actual situations, and their shapes, lengths, sizes, etc. can be arbitrarily changed to meet the requirements of other installation environments between the driver's cab outer cover and the vehicle body.

[0022] In the specific implementation process, such as Figure 2 and Figure 3 shown, the connection method of the energy-absorbing device to the vehicle body remains unchanged and can be connected in a conventional manner.

[0023] Such as Figures 3 to 5 shown, in the embodiment of the present application, there is an energy-absorbing connection skeleton 185 in the driver's cab, which extends in the vertical direction and is connected to the vehicle body. The energy-absorbing connection skeleton 185 includes an upper part of the skeleton 1851, a middle part of the skeleton 1852 and a lower part of the skeleton 1853. The upper part of the skeleton 1851 and the lower part of the skeleton 1853 are respectively fixedly installed at both ends of the middle part of the skeleton 1852. The second-stage energy-absorbing structure 182 is fixedly installed on the upper part of the skeleton 1851, and the bottom energy-absorbing structure 184 is fixedly installed inside the lower part of the skeleton 1853.

[0024] In the embodiment of the present application, a driver's cab outer cover steering motor 186 is further provided at the front end of the driver's cab, which is used to drive the outer cover at the front end of the driver's cab to open or close. When the outer cover is opened, the coupler is exposed to realize connection with the adjacent carriage. The driver's cab outer cover steering motor 186 is arranged on the top of the first-stage energy-absorbing structure 181. Utilizing this part of the space, in the solution provided by this embodiment, the size of the first-stage energy-absorbing structure 181 is reduced to avoid interference with the driver's cab outer cover steering motor 186.

[0025] In the specific implementation process, such as Figure 4As shown in the figure, the first-level surface 1811 of the first-level energy-absorbing structure 181 is a vertical surface. The second-level surface 1821 of the second-level energy-absorbing structure 182 is also a vertical surface, facing the steering motor 186 of the driver's cab outer cover. The first-level energy-absorbing structure 181 and the second-level energy-absorbing structure 182 adopt vertical surfaces. During the collision of the vehicle in front, the front end surfaces of the energy-absorbing structures of the two vehicles are in planar contact, and the contact area is large, which can ensure the stability of the deformation of the energy-absorbing structure during the collision, and thus guarantee the energy-absorbing effect.

[0026] This embodiment also provides a carriage, including a driver's cab, and an energy-absorbing device provided in any of the above contents is provided at the front end of the driver's cab.

[0027] This embodiment also provides a rail vehicle, including a head car and intermediate cars. The head car adopts the above carriage.

[0028] The carriage and the rail vehicle provided in this embodiment have the same technical effects as the above energy-absorbing device.

[0029] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0032] Although the preferred embodiments of the present application have been described, additional changes and modifications can be made to these embodiments by those skilled in the art once they learn of the basic creative concept. Therefore, the appended claims are intended to be construed to include the preferred embodiments as well as all changes and modifications that fall within the scope of the present application.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims

1. A vehicle energy absorption device, characterized in that, Comprising: An outer energy-absorbing structure, a bottom energy-absorbing structure, a first-stage energy-absorbing structure and a second-stage energy-absorbing structure, wherein the first-stage energy-absorbing structure is fixed to the front end of the second-stage energy-absorbing structure; The cross-sectional area of the first-stage energy-absorbing structure is smaller than that of the second-stage energy-absorbing structure; the top surface of the first-stage energy-absorbing structure is lower than the top surface of the second-stage energy-absorbing structure; the front end surface of the first-stage energy-absorbing structure is a vertical surface, and the front end surface of the second-stage energy-absorbing structure is a vertical surface; the outer energy-absorbing structure is arranged on both sides of the second-stage energy-absorbing structure; the bottom energy-absorbing structure is arranged below the outer energy-absorbing structure; The bottom surface of the first-stage energy-absorbing structure is flush with the bottom surface of the second-stage energy-absorbing structure; the first-stage energy-absorbing structure and the second-stage energy-absorbing structure are arranged asymmetrically; The first-stage energy-absorbing structure and the second-stage energy-absorbing structure are installed on an energy-absorbing connection framework, and the energy-absorbing connection framework is arranged inside the driver's cab; the energy-absorbing connection framework extends in the up-and-down direction and includes an upper part of the framework, a middle part of the framework and a lower part of the framework, and the second-stage energy-absorbing structure is connected to the upper part of the framework, and the bottom energy-absorbing structure is connected to the lower part of the framework.

2. A carriage, characterized in that, Comprising: A driver's cab and a passenger compartment, and a vehicle energy-absorbing device as claimed in claim 1 is provided at the front end of the driver's cab.

3. The carriage according to claim 2, wherein A driver's cab outer cover steering motor is further provided at the front end of the driver's cab, and the driver's cab outer cover steering motor is located in the top space of the first-stage energy-absorbing structure.

4. An orbital vehicle, characterized in that, A carriage as claimed in claim 2 or 3.

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