CN216034371U

CN216034371U - Car body assembly and have its railcar

Info

Publication number: CN216034371U
Application number: CN202121822825.3U
Authority: CN
Inventors: 雷鹏; 李坤周; 刘宇
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-03-15
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses a vehicle body assembly and a rail vehicle with the same, wherein the vehicle body assembly comprises a vehicle body and a vehicle head cover, the vehicle head cover is positioned on one side of the vehicle body, the vehicle body comprises a vehicle body frame and a vehicle body bottom frame arranged below the vehicle body frame, the vehicle body bottom frame extends beyond the vehicle body frame on the side where the vehicle head cover is positioned, the periphery of the vehicle head cover is connected to the vehicle body frame and the vehicle body bottom frame, and the vehicle head cover is made of composite materials. According to the vehicle body assembly, the vehicle head cover made of the composite material is used as a bearing structural component of the vehicle body assembly, so that a metal framework structure of a vehicle head area arranged on a vehicle body can be omitted, and the vehicle head cover is directly connected with the vehicle body. Therefore, the welding process of the vehicle body can be simplified, the installation workload of the vehicle head cover is reduced, and the overall weight of the vehicle body assembly is reduced.

Description

Car body assembly and have its railcar

Technical Field

The utility model relates to the technical field of rail cars, in particular to a car body assembly and a rail car with the same.

Background

A head of a rail car for rail transit such as a train, a light rail, a subway, etc., as shown in fig. 1 and 2, a car body assembly 10 thereof generally includes a car body 11, a head frame 12 connected to the car body 11, and a head cover 13. The vehicle body 11 includes a vehicle body frame 14 and a vehicle body under frame 15 provided to the vehicle body frame 14. The head frame 12 is provided on the front side of the vehicle body frame 14 and the upper side of the vehicle body underframe 15, and the head frame 12 is a metal frame and can be connected to the vehicle body frame 14 and the vehicle body underframe 15. The head frame 12 is used to mount a head cover 13 to the vehicle body 11. Usually, a metal piece matched with the head frame 12 is embedded in the head cover 13, and the metal piece is connected to the head frame 12 in a welding and bonding mode.

Due to the arrangement of the headstock frame 12, the mounting process of the headstock cover 13 is complex, the workload is large, and the headstock cover 13 with the metal piece not only increases the weight of the headstock cover 13, but also has high manufacturing cost. Moreover, the headstock frame 12 is formed by welding rod bending pieces, section bars and the like, the rod bending and welding process is complex, and the welding deformation is large.

Accordingly, there is a need for a vehicle body assembly and a rail vehicle having the same that at least partially address the above issues.

SUMMERY OF THE UTILITY MODEL

In the summary section a series of concepts in a simplified form is introduced, which will be described in further detail in the detailed description section. The inventive content of the present invention is not intended to define key features or essential features of the claimed solution, nor is it intended to be used to limit the scope of the claimed solution.

To at least partially solve the above problems, the present invention provides a vehicle body assembly for a rail vehicle, the vehicle body assembly including a vehicle body and a head cover, the head cover being located at one side of the vehicle body, the vehicle body including:

a vehicle body frame; and

a vehicle body underframe arranged below the vehicle body frame, the vehicle body underframe extending beyond the vehicle body frame at the side where the head cover is located,

wherein the periphery of the cowl is connected to the body frame and the body underframe, the cowl being made of a composite material.

Optionally, the cowl comprises an inner layer of glass fiber reinforced plastic, an outer layer of glass fiber reinforced plastic, and a plurality of stiffeners, the inner layer of glass fiber reinforced plastic is located on the inner side of the outer layer of glass fiber reinforced plastic, and the plurality of stiffeners are arranged between the inner layer of glass fiber reinforced plastic and the outer layer of glass fiber reinforced plastic.

Optionally, a resin foam layer is arranged between the inner layer of glass fiber reinforced plastic and the outer layer of glass fiber reinforced plastic, and the plurality of reinforcing members are embedded in the resin foam layer.

Optionally, the inner layer of glass fibre reinforced plastic is constructed integrally with the outer layer of glass fibre reinforced plastic at the periphery of the cowl and/or the reinforcement is constructed as a fibre reinforced resin member.

Optionally, the cowl further comprises a mounting member disposed at the periphery of the cowl and adjacently buried between the inner and outer layers of glass fiber reinforced plastic.

Optionally, the mount is made of a metallic material.

Alternatively, the plurality of reinforcing members are provided in a length direction, a width direction, and a height direction of the cowl, respectively.

The cowl is connected to the body frame and the body underframe by at least one of fastener attachment and bonding.

The automobile body frame be provided with the frame installation face of hood butt, the frame installation face is towards the outside, the automobile body chassis be provided with the chassis installation face of hood butt, the chassis installation face is towards the outside.

According to another aspect of the present invention there is provided a rail vehicle comprising a vehicle body assembly according to any one of the above aspects.

According to the vehicle body assembly and the rail vehicle with the vehicle body assembly, the vehicle head cover made of the composite material is adopted as a bearing structural part of the vehicle body assembly, so that a metal framework structure of a vehicle head area arranged on a vehicle body can be omitted, and the vehicle head cover is directly connected with the vehicle body. Therefore, on one hand, the welding process of the vehicle body can be simplified, the installation workload of the vehicle head cover is reduced, the production efficiency of the vehicle body assembly can be improved, the assembly time and labor cost are reduced, and the process costs of vehicle body assembly materials, rod bending, welding and the like are reduced; on the other hand, the weight of the hood and the vehicle body can be reduced, so that the overall weight of the vehicle body assembly is reduced.

Drawings

The following drawings of the utility model are included to provide a further understanding of the utility model. The drawings illustrate embodiments of the utility model and, together with the description, serve to explain the principles of the utility model. In the drawings:

FIG. 1 is a side view of a prior art vehicle body assembly with a hood removed;

FIG. 2 is an interior schematic view of a portion of the vehicle body assembly shown in FIG. 1;

FIG. 3 is a side view of the body of the vehicle body assembly according to the present invention;

FIG. 4 is a side view of the vehicle body assembly according to the present invention;

FIG. 5 is a rear elevational view of the hood shown in FIG. 4;

FIG. 6 is a cross-sectional view taken along line D-D of FIG. 5;

FIG. 7 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 8 is a cross-sectional view taken along line B-B of FIG. 4;

fig. 9 is a sectional view taken along line C-C of fig. 4.

Description of reference numerals:

10 vehicle body assembly 11 vehicle body

12 head frame 13 head cover

14 vehicle body frame 15 vehicle body underframe

100 body assembly 110 body

111 vehicle body frame 112 vehicle body underframe

113 end wall section bar 114 bottom frame section bar

115 mounting wall 120 head cover

121 inner layer glass fiber reinforced plastic and 122 outer layer glass fiber reinforced plastic

123 stiffener 123a transverse wall

123b inclined wall 123c is flanged

124 foam 125 mounting

130 fastener

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

In the following description, a detailed description will be given in order to thoroughly understand the present invention. It is apparent that the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the utility model, however, the utility model is capable of other embodiments in addition to those detailed.

It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the utility model. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like are used herein for purposes of illustration only and are not limiting.

Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art.

The utility model provides a vehicle body assembly 100 for a rail vehicle. The rail vehicle may be a multi-car vehicle for rail transit, such as a train, a light rail, a subway, or the like. The body assembly 100 may be disposed at the head and/or tail of the rail car.

As shown in FIGS. 3 and 4, the vehicle body assembly 100 may include a vehicle body 110 and a cowl 120. The cowl 120 is located at one side of the vehicle body 110, and for example, the cowl 120 is located at a front side of the vehicle body 110 in case that the vehicle body assembly 100 is disposed at a head of a rail car. The cowl 120 is made of a composite material. The composite material includes a resin and fibers as reinforcement. In other words, the cowl 120 is a fiber-reinforced resin member. Specifically, the vehicle body 110 may include a vehicle body frame 111 and a vehicle body under frame 112 disposed under the vehicle body frame 111. The vehicle body under frame 112 can be connected with the vehicle body frame 111 to support the vehicle body frame 111 upward. The vehicle body under frame 112 can extend beyond the vehicle body frame 111 on the side where the head cover 120 is located. The periphery of the cowl 120 is connected to the vehicle body frame 111 and the vehicle body under frame 112. The vehicle body under frame 112 can support the cowl 120 upward.

It should be noted that directional terms used herein to describe various components, portions, etc. of the vehicle body assembly 100, such as "upper", "lower", "above", "below", "upward", "downward", etc., are relative to the vehicle body assembly 100 in a horizontally disposed and upright position. Without limitation, "inner" in the directional terms "inwardly", "outwardly", "inboard", "outboard", etc., refer to being closer to the center of the body assembly 100 and "outer" refers to being farther from the center of the body assembly 100.

The present embodiment employs the cowl 120 made of a composite material as a load-bearing structural member of the vehicle body assembly 100, which makes it possible to eliminate the metal skeleton structure of the head region provided on the vehicle body 110 and to directly connect the cowl 120 to the vehicle body 110. Therefore, on one hand, the welding process of the vehicle body can be simplified, and the installation workload of the vehicle head cover 120 is reduced, so that the production efficiency of the vehicle body assembly 100 can be improved, the assembly time and labor cost can be reduced, and the process costs of materials, rod bending, welding and the like of the vehicle body assembly 100 can be reduced; on the other hand, the weight of the cowl 120 and the body 110 can be reduced, thereby reducing the overall weight of the body assembly 100.

The cowl 120 may be at least one of attached and bonded to the body frame 111 and the body underframe 112 by fasteners 130. The fasteners 130 may be rivets, bolts, or the like as appropriate. Specifically, in the illustrated embodiment, the body frame 111 may be provided with a headwall profile 113 at one end. The end wall profiles 113 are configured as door frames. The body underframe 112 may be provided with an underframe profile 114 on the outside. The cowl 120 is located outside the headwall profile 113 and the chassis profile 114 and is connected to the headwall profile 113 and the chassis profile 114 by a plurality of countersunk rivets arranged at intervals.

As shown in fig. 5 to 7, the cowl 120 may include an inner layer of glass fiber reinforced plastic 121, an outer layer of glass fiber reinforced plastic 122, and a plurality of reinforcing members 123. The inner glass fiber reinforced plastic 121 is positioned inside the outer glass fiber reinforced plastic 122, and the plurality of reinforcing members 123 are disposed between the inner glass fiber reinforced plastic 121 and the outer glass fiber reinforced plastic 122. The cowl 120 of the present embodiment has a double-layer glass fiber reinforced plastic structure, and the overall structural strength of the cowl 120 is reinforced by the built-in reinforcement 123.

As shown in fig. 5 and 6, a plurality of reinforcing members 123 may be respectively disposed along the length direction, the width direction and the height direction of the cowl 120 according to the shape, the interface and the force characteristics of the cowl 120. For example, the top of the cowl 120 may be provided with the reinforcements 123 extending in the width direction, and the top reinforcements 123 may be provided at intervals in the longitudinal direction. The front portion of the cowl 120 may be provided with a plurality of reinforcements 123 extending in the width direction and the length direction, and the reinforcements 123 inclined in the height direction. The side of the cowl 120 may be provided with a plurality of reinforcements 123 extending in the length direction and reinforcements 123 inclined in the height direction. Of course, the side reinforcements 123 may extend to the front of the cowl 120.

As shown in fig. 7, the reinforcing member 123 extends from the inner layer of glass fiber reinforced plastic 121 to the outer layer of glass fiber reinforced plastic 122. In the illustrated embodiment, the cross-sectional shape of the stiffener 123 is hat-shaped. Specifically, the reinforcement 123 includes a lateral wall 123a and an inclined wall 123b connected to the lateral wall 123a, and the inclined wall 123b is inclined with respect to the lateral wall 123a and is symmetrically disposed. The end of the inclined wall 123b remote from the transverse wall 123a is provided with a turned-up edge 123 c. The flange 123c extends along the side opposite to the side on which the lateral wall 123a is located. The integral structure formed by the reinforcing member 123 can enhance the integral strength and rigidity of the cowl 120, and meet the requirement of the cowl 120 as the integral structure of the cab framework of the vehicle body 110.

Of course, the cross-sectional shape of the reinforcement member 123 may also be any suitable shape, i.e., I-shaped, T-shaped, L-shaped, Z-shaped, J-shaped, C-shaped, etc., if needed and/or desired. The plurality of reinforcing members 123 may have the same or different sectional shapes, and may have one, two or more of a hat type, a drum type, a T type, an L type, a Z type, a J type, and a C type.

A resin foam layer is provided between the inner layer glass fiber reinforced plastic 121 and the outer layer glass fiber reinforced plastic 122, and a plurality of reinforcing members 123 are embedded in the resin foam layer. The resin foam layer may be made of a resin foam material 124, and for example, the resin foam material 124 may be PVC (Polyvinyl chloride), PS (Polystyrene), PUR (polyurethane foam). The reinforcement 123 is configured as a fiber-reinforced resin member. Specifically, the reinforcement 123 is made of a resin material containing a reinforcement member, which is a continuous fiber such as a glass fiber. The reinforcing member 123 made of the composite material can not only reinforce the structure of the cowl 120 and enable the cowl 120 to meet design requirements, but also enable the metal member for connection to be omitted and embedded into the cowl 120 to be possible, and compared with the metal member, the density of the composite material of the reinforcing member 123 is far lower than that of the metal material, so that the cowl 120 can have the same rigidity and strength with less weight.

The cowl 120 may be manufactured by laying a layer of raw material including fiber and resin, placing the pre-formed reinforcement 123 on the raw material, and then laying the layer of raw material. Then, the head cover 120 is prepared under the conditions of a certain temperature and pressure through the links of dipping, shaping, curing and the like. According to the process characteristics of the composite material, the whole cowl 120 structure can be completed in the process of laying, and the structure is firmer and more reliable than the structure of the inner side of the cowl 120 in which metal pieces are adhered.

As shown in fig. 8 and 9, the cowl 120 may further include a mounting member 125, and the mounting member 125 is provided at a periphery of the cowl 120. The mounting member 125 may be made of a metal material. The structural strength at the periphery of the cowl 120 can be reinforced, so that the stability and reliability of the mounting structure of the cowl 120 can be improved. The mounting member 125 may be embedded adjacent between the inner layer of glass reinforced plastic 121 and the outer layer of glass reinforced plastic 122. Further, the mounting member 125 is adjacent to the inner layer of glass reinforced plastic 121 and also adjacent to the outer layer of glass reinforced plastic 122. The edge of the cowl 120 is not provided with the resin foam layer. The countersunk rivets pass through the outer layer of glass fiber reinforced plastic 122, the mounting member 125, the inner layer of glass fiber reinforced plastic 121, and the vehicle body 110 in order to connect the cowl 120 to the vehicle body 110.

In an embodiment not shown, the mounting member 125 may be eliminated, and the inner layer of glass fiber reinforced plastic 121 is integrally formed with the outer layer of glass fiber reinforced plastic 122 at the periphery of the cowl 120. The countersunk rivets pass through the outer layer glass fiber reinforced plastic 122, the inner layer glass fiber reinforced plastic 121, and the vehicle body 110 in order to connect the cowl 120 to the vehicle body 110.

Specifically, as shown in fig. 8, the end wall section 113 of the vehicle body frame 111 is provided with a frame mounting surface F1 abutting against the cowl 120, the frame mounting surface F1 faces outward, and the cowl 120 abuts against the frame mounting surface F1. The countersunk rivets are sequentially passed through the outer layer of glass fiber reinforced plastic 122, the mounting member 125, the inner layer of glass fiber reinforced plastic 121, and the headwall section bar 113 to connect the cowl 120 to the body frame 111.

As shown in fig. 9, the floor frame profile 114 of the vehicle body floor frame 112 is provided with a floor frame attachment surface F2 that abuts the cowl 120, the floor frame attachment surface F2 faces outward, and the cowl 120 abuts against the floor frame attachment surface F2. The countersunk rivets are passed through the outer layer of glass reinforced plastic 122, the mounting member 125, the inner layer of glass reinforced plastic 121, and the underframe profile 114 in that order to connect the cowl 120 to the car body underframe 112. In the illustrated embodiment, the mount 125 provided to the vehicle body under frame 112 has a double-layer structure, and one end near the resin foam layer 124 is configured as a hollow frame. The base frame profile 114 is provided with upwardly extending mounting walls 115, the mounting walls 115 being connected in turn to the inner glass fibre reinforced plastic 121, the hollow frame, by fasteners 130 such as countersunk rivets.

In the present embodiment, the attachment surfaces of the headwall section 113 and the underframe section 114 can be used as positioning references for assembling the cowl 120. The fixing mode of the hood 120 and the underframe 112 of the vehicle body is beneficial to the force of the vehicle body 110 to be more directly and uniformly transmitted to the hood 120.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been illustrated by the above embodiments, but it should be understood that the above embodiments are for illustrative and descriptive purposes only and are not intended to limit the utility model to the scope of the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many variations and modifications may be made in accordance with the teachings of the present invention, which variations and modifications are within the scope of the present invention as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a car body assembly for the railcar, its characterized in that, car body assembly includes automobile body and hood, the hood be located one side of automobile body, the automobile body includes:

a vehicle body frame; and

2. The vehicle body assembly of claim 1, wherein the cowl comprises an inner layer of glass fiber reinforced plastic positioned inboard of an outer layer of glass fiber reinforced plastic, and a plurality of stiffeners disposed between the inner layer of glass fiber reinforced plastic and the outer layer of glass fiber reinforced plastic.

3. The vehicle body assembly of claim 2, wherein a resin foam layer is disposed between the inner layer of glass fiber reinforced plastic and the outer layer of glass fiber reinforced plastic, and the plurality of reinforcements are embedded in the resin foam layer.

4. The vehicle body assembly of claim 2, wherein the inner layer of glass fiber reinforced plastic is constructed integrally with the outer layer of glass fiber reinforced plastic at the periphery of the cowl, and/or the reinforcement is constructed as a fiber-reinforced resin member.

5. The vehicle body assembly of claim 2, wherein the cowl further comprises a mounting disposed at the periphery of the cowl and adjacently buried between the inner and outer layers of glass fiber reinforced plastic.

6. The vehicle body assembly of claim 5, wherein the mounting member is made of a metallic material.

7. The vehicle body assembly of claim 2, wherein the plurality of reinforcements are disposed in a length direction, a width direction, and a height direction of the cowl, respectively.

8. The vehicle body assembly of claim 1, wherein the cowl is at least one of connected and bonded to the body frame and the body underframe by fasteners.

9. The vehicle body assembly of claim 1, wherein the vehicle body frame is provided with a frame mounting surface that abuts the cowl, the frame mounting surface facing outward, and the vehicle body underframe is provided with an underframe mounting surface that abuts the cowl, the underframe mounting surface facing outward.

10. A rail vehicle, characterized in that it comprises a body assembly according to any one of claims 1 to 9.