WO2023087406A1 - High-speed maglev train and body structure thereof - Google Patents

Abstract

The present invention relates to the body structure of a high-speed maglev train, the body structure comprising a body frame and a body cover plate, which is assembled and fixed on the body frame, wherein a mounting opening for mounting the body cover plate is pre-designed in the body frame; the body cover plate is a composite plate; a support frame is provided between the body cover plate and the mounting opening to provide support for the assembly of the body cover plate and the mounting opening; and a sealing structure is provided between the support frame and the body cover plate. The body frame is used as a bearing frame of a body and is connected to the body cover plate that is made of a composite plate material. In order to ensure the stability and sealing of a connection structure between the body and the composite plate, the mounting opening is pre-designed in the body frame, the support frame on the mounting opening is fixedly connected to the composite plate, and moreover, the sealing structure is arranged between the support frame and the body cover plate to ensure the sealing of the interior of the body. The assembled structure of the composite body and the body frame meets the lightweight requirement of the body. Further provided in the present invention is a high-speed maglev train.

Description

High-speed maglev train and its body structure

This application claims the priority of the above-mentioned Chinese patent application filed with the China Patent Office on November 19, 2021, with the application number 202111400118.X, and the title of the invention is "High-speed Maglev Train and Its Body Structure", the entire contents of which are incorporated herein by reference the above application.

technical field

The invention relates to the technical field of maglev trains, in particular to a high-speed maglev train and its car body structure.

Background technique

The maglev train is a vehicle for maglev transportation. Due to the limitation of the suspension force, the maglev train needs to achieve light weight, and at the same time requires the strength and carrying capacity of the car body.

The existing maglev train realizes lightweight design and adopts an all-aluminum profile car body, which has the characteristics of light weight, sound insulation, heat insulation and good air tightness. However, compared with the levitation force requirements of the maglev train, in the application of the car body, the car body of the all-aluminum profile structure has problems such as heavy weight, poor sound insulation and heat insulation performance.

Here, it should be noted that the technical content provided in this section is intended to help those skilled in the art understand the present invention, and does not necessarily constitute prior art.

Contents of the invention

In view of this, the purpose of the present invention is to provide a car body structure of a high-speed maglev train to meet the lightweight requirements of the car body; the present invention also provides a high-speed maglev train.

In order to achieve the above object, the present invention provides the following technical solutions:

A car body structure of a high-speed maglev train, comprising a car body frame and a car body cover plate assembled and fixed on the car body frame, the car body frame is preset with an installation port for installing the car body cover plate , the vehicle body cover plate is a composite plate, a support frame is provided between the vehicle body cover plate and the installation port to support the splicing of the two, and a support frame is provided between the vehicle body cover plate and the vehicle body cover plate Sealed structure.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the car body frame includes an assembled and matched underframe, an end wall, a side wall and a car roof, and the car body cover plate includes an underframe cover plate corresponding to the frame structure , end wall covers, side wall covers and roof covers.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the composite plate is a carbon fiber composite plate.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the underframe includes side beams extending along the length direction of the car body and arranged at both ends of the car body in the width direction, and longitudinal rails arranged between the side beams. Beams, both ends of the side beams and the longitudinal beams in the protruding direction are supported by end beams;

A plurality of small beams supporting the longitudinal beams and the side beams are also arranged between the longitudinal beams and the side beams;

An underframe installation opening is enclosed between the small crossbeam, the longitudinal beam and the side beam, and an underframe cover plate for sealing the underframe installation opening is arranged on the underframe installation opening.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the longitudinal beams include two parallel beams, and an inspection port is reserved between the two longitudinal beams, and the inspection port is detachably arranged with a pair of Inspection door for chassis inspection.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the end wall includes an end wall frame that cooperates with the circumferential support of the car body, and a through-channel installation frame fixed in the middle of the end wall frame,

It also includes end wall carbon fiber composite panels arranged at both ends in the width direction of the end wall frame and enclosing the vehicle body shell.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the side wall includes a front door column assembly and a rear door column assembly enclosing the door frame of the car body, as well as a top installation profile and a bottom installation profile arranged on the side wall;

An aluminum profile side wall that seals the side wall is fixed between the top installation profile and the lower installation profile, and an aluminum profile side wall that seals the side wall is installed between the lower installation profile and the bottom frame. The side walls of the cover are made of carbon fiber composite panels.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, there are multiple partition profiles protruding downward from the lower installation profile, and the carbon fiber composite panels of the side walls are arranged in blocks, and the multiple partition profiles supported by the partition profiles indivual.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the front door pillar assembly and the rear door pillar assembly both include an internal reinforced box girder disposed inside the car body and having a box-type inner cavity, and the cover An external cover plate installed on the internal reinforced box girder, and a reinforcing seat for supporting the two is arranged between the internal reinforced box girder and the external cover plate;

It also includes a bottom mounting seat supporting the bottom of the inner reinforced box girder.

Preferably, in the car body structure of the above-mentioned high-speed maglev train, the roof includes a roof frame, a middle-roof carbon fiber composite plate that covers the top of the roof frame, and covers the sides of the roof frame on both sides in the width direction. Top carbon fiber composite panel.

A high-speed maglev train includes a car body, and the car body has the car body structure of any one of the above high-speed maglev trains.

The car body structure of the high-speed maglev train provided by the present invention includes a car body frame and a car body cover plate assembled and fixed on the car body frame. The plate is a composite plate, a supporting frame is provided between the vehicle body cover plate and the installation opening to support the splicing of the two, and a sealing structure is provided between the support frame and the vehicle body cover plate. The car body structure of the maglev train adopts the method of assembling the car body frame and the car body cover plate. The car body frame is used as the load-bearing frame of the car body, and the prefabricated installation port on the car body frame is connected with the car body cover plate made of composite plate material. , in order to ensure the stability and tightness of the connection structure between the car body and the composite plate, the installation opening is prefabricated on the cover plate of the car body, and the support frame on the installation port is fixedly connected with the composite plate. A sealing structure is set between the plates to ensure the sealing ability of the interior of the car body, and the assembly structure of the composite plate and the car body frame meets the requirements for lightweight car body.

Description of drawings

Through the following description of the embodiments of the present invention with reference to the accompanying drawings, the above and other objects, features and advantages of the present invention will be more clear, in the accompanying drawings:

Fig. 1 is the structural arrangement diagram of the car body structure of the high-speed maglev train provided by the present invention;

Fig. 2 is an exploded view of the underframe structure in the car body structure of Fig. 1;

Fig. 3 is an exploded view of the end wall structure in the car body structure of Fig. 1;

Fig. 4 is an exploded view of the side wall structure in the car body structure of Fig. 1;

Fig. 5 is an exploded view of the door column structure in the car body structure of Fig. 1;

Fig. 6 is an exploded view of the roof structure in the car body structure of Fig. 1 .

Detailed ways

The present invention is described below based on examples, but the present invention is not limited to these examples.

As shown in Fig. 1-Fig. 6, Fig. 1 is the structural layout diagram of the car body structure of the high-speed maglev train provided by the present invention; Fig. 2 is the exploded view of the underframe structure in Fig. 1 car body structure; Fig. 3 is the car body of Fig. 1 Exploded view of the end wall structure in the structure; Fig. 4 is an exploded view of the side wall structure in the car body structure in Fig. 1; Fig. 5 is an exploded view of the door column structure in the car body structure in Fig. 1; Fig. 6 is the roof structure in the car body structure in Fig. 1 exploded view.

This embodiment provides a car body structure of a high-speed maglev train, including a car body frame and a car body cover plate assembled and fixed on the car body frame, the car body frame is preset with an installation port for installing the car body cover plate, The car body cover plate is a composite plate, a support frame is provided between the car body cover plate and the installation opening to support the splicing of the two, and a sealing structure is provided between the support frame and the car body cover plate. The car body structure of the maglev train adopts the method of assembling the car body frame and the car body cover plate. The car body frame is used as the load-bearing frame of the car body, and the prefabricated installation port on the car body frame is connected with the car body cover plate made of composite plate material. , in order to ensure the stability and tightness of the connection structure between the car body and the composite plate, the installation opening is prefabricated on the cover plate of the car body, and the support frame on the installation port is fixedly connected with the composite plate. A sealing structure is set between the plates to ensure the sealing ability of the interior of the car body, and the assembly structure of the composite plate and the car body frame meets the requirements for lightweight car body.

In a specific embodiment of this case, the car body frame includes an assembled and matched underframe 1, end walls 2, side walls 3 and roof 4, and the car body cover includes the underframe cover and end wall cover corresponding to the car body frame. , side wall panels and roof panels. The frame of the car body is composed of four sections, the underframe 1 supports the car body, the side wall 3 includes two side walls in the width direction of the underframe, the end wall 2 is the support structure at both ends of the length direction of each car body, and the roof 4 covers Installed on the top and supported by two side walls 3, in order to meet the requirements of light weight, on the bottom frame 1, side wall 3, end wall 2, and roof 4, there are installation ports for installing composite panels, so as to improve the vehicle body. The coverage area of lightweight composite panels maximizes the lightweight design of the car body.

Preferably, the composite plate is a carbon fiber composite plate. The car body is an aluminum alloy car body frame structure.

In a specific embodiment of the present case, the underframe 1 includes side beams 6 protruding along the length direction of the vehicle body, arranged at both ends of the vehicle body in the width direction, longitudinal beams 7 arranged between the side beams 6, side beams 6 and longitudinal beams 7 Both ends of the extension direction are supported by end beams 5; between the longitudinal beams 7 and the side beams 6, a plurality of small beams 8 are arranged to support them; between the small beams 8, the longitudinal beams 7 and the side beams 6 The base frame installation opening is surrounded, and the base frame cover plate 9 for sealing it is arranged on the base frame installation opening.

Further, the longitudinal beam 7 includes two parallel beams, and an inspection opening is reserved between the two longitudinal beams 7, and an inspection door 11 for inspecting the underframe is detachably arranged on the inspection opening.

End beams 5, side beams 6, longitudinal beams 7, and small crossbeams 8 are welded to form an underframe skeleton (the underframe is a symmetrical structure, and the same parts will not be marked repeatedly), and the underframe cover plate 9 is a carbon fiber composite board. In order to ensure the structural stability of the underframe cover plate 9, it is installed on the underframe skeleton using countersunk head rivets 10. To adapt to the width structure of the chassis, two longitudinal beams 7 are arranged at intervals, and an inspection door 11 is reserved between the two. The inspection door 11 is a detachable structure, fixed to the chassis 1 through the inspection door lock seat 13, and rivets are used 14 is installed on the skeleton of the chassis 1, and a structural sealant is applied to the contact surface between the inspection door 11 and the inspection port, and the inspection door 11 is detachable, which is also a carbon fiber composite plate, and an inspection door lock 12 is installed on it, passing the inspection Door lock 12 is installed on the inspection door lock seat 13.

In a specific embodiment of the present case, the end wall 2 includes an end wall frame 17 that cooperates with the circumferential support of the vehicle body, a through-channel installation frame 16 that is fixed in the middle of the end wall frame 17, and also includes a The two ends of the car body surround the end wall carbon fiber composite panel 18 of the car body shell. The through channel installation frame 16 is installed on the end wall carbon fiber composite panel 18 using countersunk rivets, and a structural sealant is applied to the contact surface of the two. The carbon fiber composite panel 18 of the end wall is installed on the end beam 5 using countersunk rivets, a structural sealant is applied to the contact surface, and the end wall frame 17 is used to connect the end wall 2 and the side wall 3 .

In a specific embodiment of this case, the side wall 3 includes a front door pillar assembly 19 and a rear door pillar assembly 20 that enclose the door frame of the vehicle body, and a top installation profile 21 and a bottom installation profile 22 arranged on the side wall 3;

An aluminum profile side wall 24 for sealing the side wall is fixed between the top installation profile 21 and the bottom installation profile 22, and a side wall for sealing the side wall 3 is provided between the bottom installation profile 22 and the bottom frame 1 Carbon fiber composite panels 25.

The front door pillar assembly 19 is arranged close to the side wall 3, the rear door pillar assembly 20 is arranged near the middle of the car body, the front door pillar assembly 19 is installed on the side beam 6, the rear door pillar assembly 20, the top installation profile 21, the bottom installation profile 22, The side wall 24 of the aluminum profile is welded to form a side wall skeleton and installed on the side beam 6, and a partition profile 23 protrudes from the lower installation profile 22, which is integrally welded to form a side wall skeleton, and the partition profile 23 is welded to the flange of the side beam 6 superior. The carbon fiber composite panel 25 of the side wall is installed into the frame formed by the side beam 6, the rear door column assembly 20, and the flanging of the lower installation profile 22 using countersunk rivets, and a structural sealant is applied to the contact surface.

Specifically, a plurality of partition profiles 23 protrude downward from the lower installation profile 22 , and the side wall carbon fiber composite panels 25 are arranged in blocks and supported by the partition profiles 23 .

Further, the front door pillar assembly 19 and the rear door pillar assembly 20 both include an inner reinforced box beam 27 which is arranged on the inner side of the vehicle body and has a box-like inner cavity, and an outer cover plate 26 which is mounted on the inner reinforced box beam 27, A reinforcing seat for supporting the two is provided between the inner reinforced box girder 27 and the outer cover plate 26;

It also includes a bottom mounting seat 28 supporting the bottom of the inner reinforced box girder 27 .

Front door column assembly 19 and rear door column assembly 20 are made up of outer cover plate 26, interior reinforced box girder 27, bottom mount 28, reinforcement seat 29, cross recessed pan head screw 30, countersunk head rivet 10. Outer cover plate 26 is provided with the vertical edge that increases rigidity, satisfies the radian requirement of car body by rolling process. The internal reinforced box girder 27 is produced by bending and tailor-welding of aluminum plates, avoiding the use of large-section aluminum alloy thin-wall extruded profiles, and reducing the cost and weight of profile molds. The bottom mount 28 is mounted to the inner stiffening box girder 27 using Phillips pan head screws 30 . Countersunk head rivets 10 are used to form a whole between the outer cover plate 26 and the inner reinforced box girder 27 , and the reinforced seat 29 is welded to the inner reinforced box girder 27 , and is connected with the outer profile 26 by countersunk head rivets 10 .

In a specific embodiment of this case, the roof 4 includes a roof frame 31, a middle roof carbon fiber composite panel 35 covering the top of the roof frame 31, and side roof carbon fiber composite panels 34 covering both sides of the roof frame 31 in the width direction.

The roof frame 31 is produced by tailor welding of aluminum profiles, on which the side roof spacer profile 32 is welded, and the end plate 33 is welded at the end. The roof frame 31 is installed between the end plate 33 and the end wall 2 with countersunk rivets, and a structural sealant is applied to the contact surface between the two. The side top spacer profile 32 is welded to the top installation profile 21 on the side wall 3 . The side roof carbon fiber composite board 34 and the middle roof carbon fiber composite board 35 are installed on the roof frame 31 using countersunk rivets, and a structural sealant is applied to the contact surface between the two to ensure the tightness of the connection.

By dividing the car body into four main parts according to the structure of roof, underframe, side wall and end wall, each part is assembled by frame and carbon fiber composite plate to realize the lightweight requirement of the car body. The frame structure on the car body is used to ensure the carrying capacity of the car body.

At the same time, for the connection between the aluminum profile frame and the carbon fiber composite plate, a combination of rivets and structural sealant is used for connection and sealing to ensure heat insulation and sound insulation performance, and to ensure the airtightness of the interior of the car body.

At the same time, adapted to the aluminum profile structure of the car body, the box girder is formed by riveting reinforced aluminum plates, avoiding the use of large-section aluminum alloy thin-wall extruded profiles, and reducing the cost and weight of profile molds. By using the rivet installation process, problems such as large deformation of the all-welded aluminum alloy car body and heavy maintenance workload are avoided.

Based on the carbody structure of the high-speed maglev train provided in the above-mentioned embodiment, the present invention also provides a high-speed maglev train, including a carbody, and the carbody has the carbody structure of the high-speed maglev train provided in the above-mentioned embodiment.

Since the high-speed maglev train adopts the car body structure of the high-speed maglev train of the above-mentioned embodiment, please refer to the above-mentioned embodiment for the beneficial effects brought by the car body structure of the high-speed maglev train for the high-speed maglev train.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (11)

1. A car body structure of a high-speed maglev train, which is characterized in that it includes a car body frame and a car body cover plate assembled and fixed on the car body frame, and the car body frame is preset to install the car body cover The installation port of the panel, the car body cover plate is a composite plate, a support frame is provided between the car body cover plate and the installation port to support the splicing of the two, the support frame and the car body cover A sealing structure is provided between the plates.
2. The car body structure of the high-speed maglev train according to claim 1, wherein the car body frame includes an assembled and matched underframe, end walls, side walls and roof, and the car body cover plate includes a corresponding frame structure chassis covers, end wall covers, side wall covers and roof covers.
3. The car body structure of a high-speed maglev train according to any one of claim 2, characterized in that the composite plate is a carbon fiber composite plate.
4. The car body structure of a high-speed maglev train according to claim 3, wherein the underframe includes side beams protruding along the length direction of the car body and arranged at both ends of the car body in the width direction. For the longitudinal beams between the beams, both ends of the side beams and the extending direction of the longitudinal beams are supported by end beams;

   A plurality of small beams supporting the longitudinal beams and the side beams are also arranged between the longitudinal beams and the side beams;

   An underframe installation opening is enclosed between the small crossbeam, the longitudinal beam and the side beam, and an underframe cover plate for sealing the underframe installation opening is arranged on the underframe installation opening.
5. The car body structure of a high-speed maglev train according to claim 4, wherein the longitudinal beams include two parallel beams, an inspection port is reserved between the two longitudinal beams, and a detachable inspection port is provided on the inspection port. An inspection door for inspection of the chassis is arranged.
6. The car body structure of a high-speed maglev train according to claim 3, wherein the end wall includes an end wall frame that cooperates with the circumferential support of the car body, and is fixed in a through passage in the middle of the end wall frame installation box,

   It also includes end wall carbon fiber composite panels arranged at both ends in the width direction of the end wall frame and enclosing the vehicle body shell.
7. According to the car body structure of the high-speed maglev train according to claim /4, it is characterized in that the side wall includes a front door column assembly and a rear door column assembly enclosing the door frame of the car body, and a top installation on the side wall profiles, lower mounting profiles;

   An aluminum profile side wall that seals the side wall is fixed between the top installation profile and the lower installation profile, and an aluminum profile side wall that seals the side wall is installed between the lower installation profile and the bottom frame. The side walls of the cover are made of carbon fiber composite panels.
8. The car body structure of the high-speed maglev train according to claim 7, characterized in that, there are a plurality of partition profiles protruding downward from the lower installation profile, and the carbon fiber composite panels of the side walls are arranged in blocks, by the Multiple partition profiles supported.
9. The car body structure of a high-speed maglev train according to claim 7, wherein the front door pillar assembly and the rear door pillar assembly both include an interior that is arranged on the inside of the car body and has a box-type inner cavity Reinforced box girder, covering the external cover plate on the internal reinforced box girder, and a reinforcing seat for supporting both is arranged between the internal reinforced box girder and the external cover plate;

   It also includes a bottom mounting seat supporting the bottom of the inner reinforced box girder.
10. The car body structure of the high-speed maglev train according to claim 7, wherein the roof includes a roof frame, a middle-top carbon fiber composite plate that covers the top of the roof frame, and covers the width of the roof frame. The side roof carbon fiber composite panels on both sides of the direction.
11. A high-speed maglev train, comprising a car body, characterized in that the car body has the car body structure of the high-speed maglev train according to any one of claims 1-10.

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