Bogie cladding device and railway vehicle
By installing a covering structure for the bottom plate and side plates on the bogie, the problem of high bogie drag was solved, achieving the effect of reducing drag and lowering energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CRRC QINGDAO SIFANG CO LTD
- Filing Date
- 2023-06-30
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, the bogie section generates significant drag during vehicle operation, which affects the vehicle's aerodynamic performance.
Design a bogie covering device, including a base plate and side plates, to cover the part of the bogie except for the wheels. The connection between the base plate and the side plates forms a closed structure to prevent airflow from entering the interior of the bogie.
It effectively reduces the drag of the bogie section, lowers energy consumption during vehicle operation, and improves airflow smoothness.
Smart Images

Figure CN116811941B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rail vehicle technology, and more specifically, to a bogie covering device. Furthermore, this invention also relates to a rail vehicle including the aforementioned bogie covering device. Background Technology
[0002] In existing technologies, partial covering structures are generally only set on both sides of the bogie in the width direction. During vehicle movement, airflow enters the bogie, generating resistance and affecting the aerodynamics of the bogie area.
[0003] In summary, how to reduce the resistance generated by the bogie during vehicle operation is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention
[0004] In view of this, the purpose of the present invention is to provide a bogie covering device that covers all parts of the bogie except the wheels by setting points and side plates, which can effectively prevent airflow from entering the bogie and effectively reduce the resistance generated by the bogie part during vehicle operation.
[0005] Another object of the present invention is to provide a rail vehicle including the above-described bogie covering device.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A bogie covering device for covering the bogie of a vehicle, the bogie covering device comprising:
[0008] The base plate is disposed below the bogie and located between two adjacent wheels arranged along the width direction of the vehicle;
[0009] Two side plates are respectively disposed on both sides of the bottom plate along the width direction of the bogie, and the side plates are provided with clearance holes for the wheels to extend out.
[0010] The side panel is connected to the vehicle body, and the side panel is in contact with or connected to the floor plate.
[0011] Optionally, the side plate is flush with the bottom plate at the position where it contacts the bottom plate, and the bottom plate and the side plate transition smoothly.
[0012] Optionally, the base plate is provided with a mounting seat for installing the first connector, and the mounting seat is connected to the vehicle body through the first connector.
[0013] Optionally, the base plate is provided with a drainage structure.
[0014] Optionally, the base plate is provided with a first inspection hole, and a sliding plate is slidably provided on the inner side of the base plate, the sliding plate being able to slide to a position to open or close the first inspection hole.
[0015] Optionally, the side plate includes:
[0016] The flat plate portion is in contact with and flush with the base plate; the flat plate portion is provided with the clearance hole;
[0017] A bent portion is connected to the flat plate portion, the included angle between the bent portion and the flat plate portion is greater than 90°, and the bent portion is provided with a second connector for connecting to the vehicle body.
[0018] Optionally, the bent portion is provided with at least one second inspection hole along the forward direction of the vehicle;
[0019] And / or, the cross-section of the bent portion is a non-uniform cross-section.
[0020] Optionally, along the forward direction of the vehicle, a first end bracket and a second end bracket are respectively provided at both ends of the structure composed of the floor plate and the side plate. Both the first end bracket and the second end bracket are provided with a third connector, which is used to connect to the vehicle body.
[0021] Optionally, the base plate is a carbon fiber composite material base plate or a welded aluminum honeycomb structure base plate;
[0022] And / or, the side plate is a carbon fiber composite material side plate or a welded aluminum honeycomb structure side plate.
[0023] A rail vehicle comprising the bogie covering device described in any of the preceding claims.
[0024] The bogie covering device provided by the present invention is used to cover the bogie of a vehicle. The bogie covering device includes: a base plate, which is disposed below the bogie and located between two adjacent wheels disposed along the width direction of the vehicle; two side plates, which are respectively disposed on both sides of the base plate along the width direction of the bogie, and the side plates are provided with clearance holes for the wheels to extend; the side plates are connected to the vehicle body and are in contact with or connected to the base plate.
[0025] When using the bogie covering device provided by the present invention, the bottom plate and side plates cover all parts of the bogie except for the wheels when the vehicle is in motion. This can prevent airflow from entering the interior of the bogie and generating resistance, effectively reducing the resistance generated by the bogie part during vehicle operation and reducing energy consumption.
[0026] In addition, the present invention also provides a rail vehicle including the above-described bogie covering device. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the outer side of the bogie covering device provided by the present invention;
[0029] Figure 2 A schematic diagram of the inner side surface of the bogie covering device provided by the present invention;
[0030] Figure 3 This is a schematic cross-sectional view of the side plate in the bogie covering device provided by the present invention;
[0031] Figure 4 This is a schematic diagram showing the connection relationship between the aluminum profiles and aluminum honeycomb panels in the side plate and the bottom plate;
[0032] Figure 5 This is a schematic diagram showing the connection between the base plate and the side plate.
[0033] Figures 1-5 middle:
[0034] 1 is the base plate, 11 is the first inspection hole, 12 is the sliding plate, 2 is the side plate, 21 is the flat plate, 211 is the clearance hole, 22 is the bending part, 221 is the second connector, 222 is the second inspection hole, 3 is the first end bracket, 4 is the second end bracket, 5 is the third connector, 6 is the wheel, 71 is the aluminum profile, and 72 is the aluminum honeycomb panel. Detailed Implementation
[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0036] The core of this invention is to provide a bogie covering device that covers all parts of the bogie except for the wheels by setting points and side plates, which can effectively prevent airflow from entering the bogie and effectively reduce the resistance generated by the bogie during vehicle operation.
[0037] Another core aspect of this invention is to provide a rail vehicle including the aforementioned bogie covering device.
[0038] Please refer to Figures 1-5 .
[0039] This specific embodiment discloses a bogie covering device for covering the bogie of a vehicle. The bogie covering device includes: a base plate 1, which is disposed below the bogie and located between two adjacent wheels 6 arranged along the width direction of the vehicle; two side plates 2, which are respectively disposed on both sides of the base plate 1 along the width direction of the bogie, and the side plates 2 are provided with clearance holes 211 for the wheels 6 to extend out; the side plates 2 are connected to the vehicle body and are in contact with or connected to the base plate 1.
[0040] It should be noted that the base plate 1 and the side plate 2 can be connected by connectors to improve the overall stability of the base plate 1 and the side plate 2. Of course, the base plate 1 and the side plate 2 can only contact each other without being connected. During the installation process, the base plate 1 and the side plate 2 are respectively connected to the vehicle body, depending on the actual situation.
[0041] The vehicle body mentioned in this application document specifically refers to the chassis of a rail vehicle.
[0042] When using the bogie covering device provided in the specific embodiment, the bottom plate 1 and the two side plates 2 completely cover the bogie except for the wheels 6 while the vehicle is in motion. This prevents airflow from entering the bogie and generating resistance, effectively reducing the resistance generated by the bogie during vehicle operation and lowering energy consumption. Furthermore, during maintenance, since the side plates 2 are located on both sides of the bottom plate 1, the covering device can be replaced while the vehicle is in a parking position, making the replacement of the bottom plate 1 and side plates 2 convenient.
[0043] In one specific embodiment, the side plate 2 is flush with the bottom plate 1 at the position where it contacts the bottom plate 1, and the bottom plate 1 and the side plate 2 transition smoothly.
[0044] Preferably, the side plate 2 can be set as an integral structure. Compared with the separate structure, the integral structure of the side plate 2 can reduce the use of connecting parts, improve the reliability of the side plate, and further improve the flatness and smoothness of the surface of the side plate 2, thereby reducing aerodynamic resistance.
[0045] like Figure 3 As shown, in the specific setting process, in order to avoid interference between the side plate 2 and other structures inside the bogie, protrusions or recesses can be set on the side plate 2 to make the side plate 2 a non-uniform cross-section structure to adapt to the spatial structure requirements.
[0046] In the specific setup process, the side plate 2 may include a flat plate 21, which is flush with the bottom plate 1, so that the bottom of the bogie is a flat plane after being covered; of course, the side plate 2 may also include a smoothly transitioning arc surface, one end of which contacts the bottom plate 1, and the contact position is flush with the bottom plate 1, so that the bottom of the bogie is a combination of a flat surface and an arc surface after being covered, with a smooth transition between the flat surface and the arc surface.
[0047] Keeping the contact points between the side plate 2 and the bottom plate 1 flush ensures that the outer surface of the overall structure formed by the bottom plate 1 and the side plate 2 is relatively flat. This effectively prevents the normal flow of air from being affected and generating resistance due to uneven contact points between the bottom plate 1 and the side plate 2.
[0048] In one specific embodiment, the base plate 1 is provided with a mounting seat for mounting a first connector, and the mounting seat is connected to the vehicle body via the first connector. Specifically, the first connector may be a pin structure, the mounting seat and the base plate 1 are an integral structure or the mounting seat is fixedly connected to the base plate 1, and the pin structure is used to connect the mounting seat and the vehicle body.
[0049] By connecting both the base plate 1 and the side plate 2 to the car body, the covering effect can be made unaffected by the bogie's floating or sinking.
[0050] To prevent water accumulation in the space enclosed by the base plate 1 and the side plate 2, a drainage structure can be installed on the base plate 1. Specifically, the drainage structure can be a drainage hole or a drainage ditch, depending on the actual situation. To prevent airflow from entering the bogie due to the drainage structure, a blocking structure can be installed under normal use to block the drainage structure, and the outer side of the blocking structure is flush with the outer surface of the base plate 1. Only when drainage is needed can the drainage structure be opened to drain water.
[0051] like Figure 1 , 2 As shown, the base plate 1 is provided with a first inspection hole 11, and a sliding plate 12 is slidably provided on the inner side of the base plate 1. The sliding plate 12 can be slid to the position to open or close the first inspection hole 11.
[0052] To facilitate the inspection and maintenance of components on the bogie and the bottom of the car body, an inspection hole can be provided on the bottom plate 1. At the same time, in order to prevent airflow from entering the interior of the bogie through the inspection hole and increasing aerodynamic resistance, a sliding plate 12 can be provided. Under normal use, the sliding plate 12 is slid to the position of closing the first inspection hole 11. When maintenance is required, the sliding plate 12 is slid to the position of opening the first inspection hole 11.
[0053] Preferably, when the slide plate 12 is slid to the position where the first inspection hole 11 is closed, the outer side of the slide plate 12 is flush with the outer side of the base plate 1.
[0054] In one specific embodiment, the side plate 2 includes: a flat plate portion 21, which contacts the bottom plate 1 and is flush with the bottom plate 1; the flat plate portion 21 is provided with a clearance hole 211; and a bent portion 22, which is connected to the flat plate portion 21, the included angle between the bent portion 22 and the flat plate portion 21 is greater than 90°, and the bent portion 22 is provided with a second connector 221 for connecting with the vehicle body.
[0055] In this specific embodiment, the side plate 2 includes a flat plate portion 21 and a bent portion 22. The bent portion 22 needs to connect the vehicle body and the flat plate portion 21. Compared with the prior art where only the bogie is covered on the side, the width of the bent portion 22 is increased in this specific embodiment, which can allow airflow to flow along the bent portion 22 and avoid the formation of turbulence.
[0056] The bent portion 22 is provided with at least one second inspection hole 222 along the vehicle's forward direction. The second inspection hole 222 facilitates the maintenance of components at the corresponding position of the bent portion 22. Specifically, a corresponding openable and closable inspection door can be provided for the second inspection hole 222 to close or open the second inspection hole 222.
[0057] like Figure 1 As shown, along the vehicle's forward direction, the two ends of the combined structure of the floor plate 1 and the side plate 2 are respectively provided with a first end bracket 3 and a second end bracket 4. Both the first end bracket 3 and the second end bracket 4 are provided with a third connector 5, which is used to connect to the vehicle body.
[0058] The arrangement of the first end bracket 3 and the second end bracket 4 can completely enclose the bogie of the rail vehicle along the direction of travel. Furthermore, the first end bracket 3 and the second end bracket 4 can extend to both ends to the equipment room, so that the bottom of the rail vehicle is completely covered.
[0059] To achieve lightweighting, the base plate 1 can be set as a carbon fiber composite base plate 1 or a welded aluminum honeycomb structure base plate 1; and / or, the side plate 2 can be set as a carbon fiber composite side plate 2 or a welded aluminum honeycomb structure side plate 2.
[0060] like Figure 4 The diagram shows the connection structure between the aluminum profile 71 and the aluminum honeycomb panel 72. The aluminum honeycomb panel 72 is inserted into the aluminum profile 71. Of course, there can be other connection relationships, which will be determined according to the actual situation and will not be elaborated here.
[0061] like Figure 5 As shown, a sealing strip is provided between the base plate 1 and the side plate 2 to seal the gap between the base plate 1 and the side plate 2.
[0062] In addition to the bogie covering device described above, the present invention also provides a rail vehicle including the bogie covering device disclosed in the above embodiments. The structure of other parts of the rail vehicle is described in the prior art and will not be repeated here.
[0063] The terms "first," "second," and "third" in the first connector, second connector 221, and third connector 5, first inspection hole 11 and second inspection hole 222, first end bracket 3 and second end bracket 4 mentioned in this application are only used to distinguish different positions and do not indicate any order.
[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Any combination of all embodiments provided by this invention is within the scope of protection of this invention and will not be elaborated upon here.
[0065] The bogie covering device and rail vehicle provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.
Claims
1. A bogie covering device for covering the bogie of a vehicle, characterized in that, The bogie covering device includes: The base plate (1) is disposed below the bogie and between two adjacent wheels (6) arranged along the width direction of the vehicle; Two side plates (2) are respectively disposed on both sides of the bottom plate (1) along the width direction of the bogie, and the side plates (2) are provided with clearance holes (211) for the wheel (6) to extend. The side plate (2) is connected to the vehicle body, and the side plate (2) is in contact with or connected to the bottom plate (1); The side panel (2) is an integral structure; The base plate (1) is provided with a first inspection hole (11), and a sliding plate (12) is slidably provided on the inner side of the base plate (1). The sliding plate (12) can be slid to the position of opening or closing the first inspection hole (11). The side plate (2) includes: The flat plate (21) is in contact with and flush with the base plate (1); the flat plate (21) is provided with the clearance hole (211). A bent portion (22) is connected to the flat portion (21), the included angle between the bent portion (22) and the flat portion (21) is greater than 90°, and the bent portion (22) is provided with a second connector (221) for connecting to the vehicle body. The side plate (2) is flush with the bottom plate (1) at the position where it contacts the bottom plate (1), and the bottom plate (1) and the side plate (2) are smoothly transitioned. The bending portion (22) is provided with at least one second inspection hole (222) along the forward direction of the vehicle. And / or, the cross-section of the bent portion (22) is non-uniform; Along the forward direction of the vehicle, the two ends of the combined structure of the floor plate (1) and the side plate (2) are respectively provided with a first end bracket (3) and a second end bracket (4). Both the first end bracket (3) and the second end bracket (4) are provided with a third connector (5). The third connector (5) is used to connect to the vehicle body. A sealing strip is provided between the base plate (1) and the side plate (2).
2. The bogie covering device according to claim 1, characterized in that, The base plate (1) is provided with a mounting seat for installing the first connector, and the mounting seat is connected to the vehicle body through the first connector.
3. The bogie covering device according to claim 1, characterized in that, The base plate (1) is provided with a drainage structure.
4. The bogie covering device according to any one of claims 1-3, characterized in that, The base plate (1) is a carbon fiber composite material base plate or a welded aluminum honeycomb structure base plate; And / or, the side plate (2) is a carbon fiber composite material side plate or a welded aluminum honeycomb structure side plate.
5. A rail vehicle, characterized in that, Includes the bogie covering device as described in any one of claims 1-4.