CN110116736A - Car body floor structure and rail vehicle with the structure - Google Patents

Abstract

The invention relates to the technical field of rail vehicles, and discloses a vehicle body floor structure and a rail vehicle having the structure, comprising: a floor frame; a floor body, the floor body being detachably mounted on the floor frame, wherein, The floor body includes a plurality of floor units, wherein adjacent floor units are detachably connected; and a plurality of support beams, each of which is arranged on the floor frame and used to support the floor body , wherein one of the support beams is arranged between every two floor units. The vehicle body floor structure has the advantages of modularization, disassembly, light weight and less welding.

Description

Body floor structure and rail vehicle having the same

technical field

The present invention relates to the technical field of rail vehicles, in particular to a vehicle body floor structure and a rail vehicle having the structure.

Background technique

At present, the floor of the rail vehicle body structure is mainly composed of aluminum alloy profiles and stainless steel plates. The interface connection method between the aluminum alloy profile and the stainless steel plate and the car body structure is mainly welding. However, welding will directly lead to the deformation of the aluminum alloy profile and the stainless steel plate, that is, the overall shrinkage of the aluminum alloy profile and the stainless steel plate. In view of this situation, special process methods are required to determine the composition of the floor. Adjustment, however, is completely inconsistent with the trend of energy saving and emission reduction.

In addition, the existing vehicle body floor is usually an integral type, that is, in order to meet the length requirement of the train body, the length of the floor is usually long. A number of beams are added at the bottom of the train. However, the increase in the number of beams will inevitably increase the overall weight of the car body, making the train unable to meet the demand for lightweight.

SUMMARY OF THE INVENTION

(1) Technical problems to be solved

The purpose of the present invention is to provide a vehicle body floor structure and a rail vehicle with the structure, so as to solve the problem that the vehicle body floor in the prior art is usually integral, and multiple beams need to be added to support the integral vehicle body floor, As a result, the weight of the vehicle body is greatly increased and the vehicle body floor is usually fixed by welding, so that the entire vehicle body floor is easily deformed.

(2) Technical solutions

In order to solve the above technical problems, according to a first aspect of the present invention, a vehicle body floor structure is provided, comprising: a floor frame; a floor body, the floor body being detachably mounted on the floor frame, wherein the The floor body includes a plurality of floor units, wherein adjacent floor units are detachably connected; and a plurality of support beams, each of which is arranged on the floor frame, for supporting the floor body, wherein , one of the support beams is arranged between every two of the floor units.

Wherein, the floor frame includes a first side beam and a second side beam arranged in parallel with the first side beam; the floor frame further includes a first end beam parallel to the first end beam The second end beam is arranged vertically, wherein both the first end beam and the second end beam are vertically arranged with the first side beam and the second side beam.

Wherein, the opposite sides of the first side beam and the second side beam are each configured with a support portion extending toward the centerline of the floor frame.

Wherein, each of the floor units includes at least three floor modules, wherein the adjacent floor modules are detachably connected.

Wherein, a first overlapping portion is configured on the side of each of the support beams facing the first end beam; a second overlapping portion is configured on the side of each of the support beams facing the second end beam department.

Wherein, a first hollow connector is installed on each of the floor modules and in contact with the first side beam or the second side beam, wherein the lower end of the first hollow connector overlaps on the The supporting portion of the first side beam or the second side beam on the corresponding side is riveted integrally with the supporting portion, and the upper end of the first hollow connecting piece is configured to face the first side beam. Or the first flange extending in the direction of the second side beam, wherein the first flange is overlapped on the first side beam or the second side beam on the corresponding side and is connected to the corresponding side beam. The first side beam or the second side beam is riveted into one body.

Wherein, a second hollow connecting piece is installed on each of the floor modules and the positions that are in contact with the support beams.

Wherein, the lower end of the second hollow connector disposed on the left side of the support beam is overlapped on the first overlapping portion and riveted into one; the second hollow connector disposed on the left side of the support beam The upper end of the hollow connector is configured with a second flange extending toward the direction of the support beam, the second flange overlaps the upper end surface of the left side of the support beam and is riveted integrally therewith.

Wherein, the lower end of the second hollow connector disposed on the right side of the support beam is lapped on the second overlapping portion and riveted into one; the second hollow connector disposed on the right side of the support beam The upper end of the hollow connecting piece is configured with a third flange extending toward the direction of the support beam, and the third flange is overlapped on the upper end surface of the right side of the support beam and riveted integrally therewith.

Wherein, the adjacent floor modules are respectively riveted into one body through the third hollow connecting piece and the fourth hollow connecting piece.

Wherein, the bottom end of the third hollow connecting piece is overlapped with the bottom end extension of the fourth hollow connecting piece and riveted into one piece, and the top end extension of the third hollow connecting piece is overlapped with the bottom end extension of the fourth hollow connecting piece. The top end of the fourth hollow connector is riveted into one piece.

According to a second aspect of the present application, there is also provided a rail vehicle comprising the above-mentioned vehicle body floor structure.

(3) Beneficial effects

Compared with the prior art, the vehicle body floor structure provided by the present invention has the following advantages:

The floor frame can be used to support the floor body and provide a mounting position for the floor body. By adding a plurality of supporting beams on the floor frame, the floor body can be better supported. In addition, since the floor body is composed of a plurality of floor units, and the adjacent floor units are connected in a detachable manner The connection is integrated, thereby eliminating the need for welding, thus effectively avoiding the situation that the overall contour shape and size of the vehicle body floor structure are affected by welding. At the same time, the amount of welding is also greatly reduced. In addition, the floor body adopts a modular design, which is less prone to concave deformation compared with the original monolithic floor. Therefore, the number of supporting beams used can be appropriately reduced, that is, no installation is required under a single floor unit. The supporting beams only need to be provided with one supporting beam between every two floor units. In this way, due to the reduction in the number of supporting beams, the overall weight of the vehicle body is effectively reduced to a certain extent, so as to meet the Lightweight requirements.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a vehicle body floor structure according to an embodiment of the application;

2 is a schematic diagram of an exploded structure of a vehicle body floor structure according to an embodiment of the application;

Fig. 3 is the overall structure schematic diagram of the floor frame in Fig. 1;

FIG. 4 is a schematic diagram of the overall structure of the floor body in FIG. 1;

Fig. 5 is the connection structure schematic diagram of the floor module in Fig. 1 and the first side beam;

FIG. 6 is a schematic diagram of the connection structure of the floor module and the support beam in FIG. 1;

FIG. 7 is a schematic diagram of the connection structure between adjacent floor modules in FIG. 1 .

In the figure, 1: floor frame; 11: first side beam; 12: second side beam; 11a: support part; 13: first end beam; 14: second end beam; 2: floor body; 21: Floor unit; 211: Floor module; 211a: Floor plate; 3: Support beam; 31: First overlapping part; 32: Second overlapping part; 4: First hollow connector; 41: First flange; 5 : the second hollow connector; 51: the second flange; 52: the third flange; 6: the third hollow connector; 61: the top extension; 7: the fourth hollow connector; 71: the bottom extension.

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in FIGS. 1 to 7 , the vehicle body floor structure is schematically shown including a floor frame 1 , a floor body 2 and a support beam 3 .

In the embodiment of the present application, the floor body 2 is detachably mounted on the floor frame 1, wherein the floor body 2 includes a plurality of floor units 21, wherein the adjacent floor units 21 are detachably connected .

There are multiple supporting beams 3 , each of which is disposed on the floor frame 1 for supporting the floor body 2 , wherein one supporting beam 3 is provided between every two floor units 21 . Specifically, the setting of the floor frame 1 can be used to support the floor body 2 and provide a mounting position for the floor body 2 . By adding a plurality of supporting beams 3 on the floor frame 1, the floor body 2 can be better supported. In addition, since the floor body 2 is composed of a plurality of floor units 21, and the adjacent floor units 21 use The detachable connection method is connected as a whole, thereby eliminating the need for welding, thus effectively avoiding the situation that the overall contour shape and size of the vehicle body floor structure are affected by welding. At the same time, the amount of welding is also greatly reduced.

In addition, the floor body 2 adopts a modular design method, which is less prone to concave deformation compared with the original monolithic floor. Therefore, the number of supporting beams 3 used can be appropriately reduced, that is, in a single floor unit 21 There is no need to install the supporting beams 3 below, and only one supporting beam 3 is required between every two floor units 21. In this way, due to the reduction in the number of supporting beams 3, the vehicle is effectively reduced to a certain extent. The overall weight of the body to meet the requirements of lightweight.

It should also be noted that, since the floor body 2 includes a plurality of floor units 21 , the transportation and installation of the floor body 2 are greatly facilitated.

Among them, the so-called "detachable connection method" is preferably a connection method in which fasteners such as screws, rivets, or bolts are used for fastening. The rivets installed on the floor plane are preferably flat-head rivets, so as to avoid scratching the passengers or tripping the passengers, so as to ensure the safety of the passengers, and at the same time, the overall aesthetics of the vehicle body floor is improved.

As shown in FIGS. 1 to 3 , in a preferred embodiment of the present application, the floor frame 1 includes a first side beam 11 and a second side beam 12 arranged in parallel with the first side beam 11 . The floor frame 1 further includes a second end beam 14 in which the first end beam 13 and the first end beam 13 are arranged in parallel, wherein the first end beam 13 and the second end beam 14 are both It is vertically arranged with the first side beam 11 and the second side beam 12 . That is, the first side beam 11 , the first end beam 13 , the second side beam 12 and the second end beam 14 together form a frame structure, and the floor body 2 can be installed inside the frame structure.

It should also be noted that each of the support beams 3 is arranged at intervals along the length direction of the first side beam 11 and the second side beam 12, wherein each of the support beams 3 can be respectively connected with the first side beam 11 and the second side beam 12. The two side beams 12 are arranged vertically.

In a preferred embodiment, the first side beam 11 , the first end beam 13 , the second side beam 12 and the second end beam 14 can be welded to form a frame structure.

In a specific embodiment, the floor frame 1 , the floor body 2 and the support beam 3 can be made of lightweight materials such as aluminum honeycomb or carbon fiber, so as to reduce the overall weight of the vehicle body floor structure.

As shown in FIG. 1 to FIG. 5 , in another preferred embodiment of the present application, opposite sides of the first side beam 11 and the second side beam 12 are both configured with a centerline toward the floor frame 1 The support portion 11a extending in the direction. It should be noted that the support portion 11a can be used to support the floor body 2 and riveted to the support portion 11a, so as to realize the installation and fixation of the floor body 2 .

It should be noted that, due to the disposition of the support portion 11a, the support portion 11a can play the role of bearing and force bearing, therefore, the support portion 11a should have certain structural strength and rigidity.

In a preferred embodiment, the support portion 11a can be made of aluminum alloy or alloy steel.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , in a preferred embodiment of the present application, each of the floor units 21 includes at least three floor modules 211 , wherein the adjacent floor modules 211 are detachably connected . In this way, by adopting a detachable connection method, the method of using welding is omitted, the amount of welding is reduced, and the transportation and installation of the floor body 2 are also greatly facilitated.

It should also be noted that each floor module 211 includes three floor boards 211a arranged side by side, wherein a detachable connection interface is provided between adjacent floor boards 211a.

Wherein, the specific interface form is not limited, that is, as long as the detachable connection can be realized between the adjacent floorboards 211a.

As shown in FIG. 6 , in a preferred embodiment of the present application, a first overlapping portion 31 is configured on each side of the support beam 3 facing the first end beam 13 .

A second overlapping portion 32 is configured on each side of the support beam 3 facing the second end beam 14 . It can be understood that the arrangement of the first overlapping portion 31 and the second overlapping portion 32 can be used to support the floor unit 21 so as to realize the riveting of the floor unit 21 and the support beam 3 .

It should be noted that, the structural shapes of the support portion 11a, the first overlapping portion 31 and the second overlapping portion 32 are preferably a plate shape, a block shape, a rib shape, or the like.

As shown in FIG. 5 , in a preferred embodiment of the present application, the figure schematically shows that each floor module 211 is in contact with the first side beam 11 or the second side beam 12 . A first hollow connecting piece 4 is installed, wherein the lower end of the first hollow connecting piece 4 is overlapped on the supporting portion 11a of the first side beam 11 or the second side beam 12 on the corresponding side and is connected with the supporting portion. 11a is riveted as a whole, the upper end of the first hollow connector 4 is configured with a first flange 41 extending in the direction of the first side beam 11 or the second side beam 12, wherein the first flange 41 overlaps The first side beam 11 or the second side beam 12 on the corresponding side is riveted together with the first side beam 11 or the second side beam 12 on the corresponding side. Specifically, the floor module 211 is preferably fixed on the first hollow connecting piece 4 by welding, however, by making the lower end of the first hollow connecting piece 4 overlap the first side beam 11 or the corresponding side beam The support portion 11a of the second side beam 12 is riveted integrally with the support portion 11a, so that the first hollow connector 4 can be fixedly connected to the first side beam 11 or the second side beam 12. At the same time, the upper end of the first hollow connector 4 is configured with a first flange 41, and the first flange 41 is overlapped on the first side beam 11 or the second side beam 12 on the corresponding side and is It is integrally riveted with the first side beam 11 or the second side beam 12 on the corresponding side, so that the upper end of the first hollow connector 4 can be fixedly connected with the first side beam 11 or the second side beam 12 .

It should be noted that the use of riveting connection method greatly reduces the amount of welding.

As shown in FIG. 6 , in another preferred embodiment of the present application, each of the floor modules 211 and the positions in contact with the support beams 3 are provided with second hollow connectors 5 . It should be noted that the arrangement of the second hollow connector 5 can realize the fixed connection between the floor module 211 and the support beam 3 , so as to realize the extension of the floor body 2 in the length direction, so as to be suitable for the length of the floor frame 1 . matching purpose.

As shown in FIG. 6 , in a preferred embodiment, the lower end of the second hollow connector 5 disposed on the left side of the support beam 3 is overlapped on the first overlap portion 31 and riveted into one piece.

The upper end of the second hollow connector 5 disposed on the left side of the support beam 3 is configured with a second flange 51 extending in the direction of the support beam 3 , and the second flange 51 overlaps the left side of the support beam 3 . The upper end face of the side is riveted into one piece. In this way, the detachable connection between the floor module 211 and the left side of the support beam 3 is realized, the fixing method of welding is omitted, and the amount of welding is reduced. The module 211 creates a situation where the welding is deformed.

In another preferred embodiment of the present application, the lower end of the second hollow connecting piece 5 disposed on the right side of the support beam 3 is overlapped on the second overlap portion 32 and riveted integrally therewith.

The upper end of the second hollow connector 5 disposed on the right side of the support beam 3 is configured with a third flange 52 extending in the direction of the support beam 3 , and the third flange 52 overlaps the right side of the support beam 3 . The upper end face of the side is riveted into one piece. In this way, the detachable connection between the floor module 211 and the right side of the support beam 3 is realized, the fixing method of welding is omitted, and the amount of welding is reduced. The module 211 creates a situation where the welding is deformed.

As shown in FIG. 7 , in a preferred embodiment of the present application, the adjacent floor modules 211 are riveted into one body through the third hollow connecting piece 6 and the fourth hollow connecting piece 7 respectively. It can be seen that the adjacent floor modules 211 are fixedly connected by means of riveting without welding, thereby greatly reducing the amount of welding.

In addition, by welding the previous floor module 211 on the third hollow connector 6, and at the same time welding the next floor module 211 adjacent to the previous floor module 211 on the fourth hollow connector 7, then, Then, the third hollow connecting member 6 and the fourth hollow connecting member 7 are riveted into one body, so that the fixed connection between the adjacent floor modules 211 can be realized.

In another preferred embodiment, the bottom end of the third hollow connector 6 is overlapped on the bottom end extension 71 of the fourth hollow connector 7 and riveted into one piece. The top end extension portion 61 overlaps the top end of the fourth hollow connecting piece 7 and is riveted integrally therewith. In this way, the fixed connection at the upper end and the lower end of the third hollow connecting piece 6 and the fourth hollow connecting piece 7 is realized. Further, the fixed connection of the adjacent floor modules 211 is realized.

It should be noted that, by making the adjacent floor modules 211 overlap each other and then fixedly connected by riveting, the overall strength and rigidity of the vehicle body floor structure are greatly improved, and the vehicle body floor structure is prevented from working for a period of time. deformation afterward.

According to a second aspect of the present application, there is also provided a rail vehicle comprising the above-mentioned vehicle body floor structure.

To sum up, the setting of the floor frame 1 can be used to support the floor body 2 and provide an installation position for the floor body 2 . By adding a plurality of supporting beams 3 on the floor frame 1, the floor body 2 can be better supported. In addition, since the floor body 2 is composed of a plurality of floor units 21, and the adjacent floor units 21 use The detachable connection method is connected as a whole, thereby eliminating the need for welding, thus effectively avoiding the situation that the overall contour shape and size of the vehicle body floor structure are affected by welding. At the same time, the amount of welding is also greatly reduced.

In addition, the floor body 2 adopts a modular design method, which is less prone to concave deformation compared with the original monolithic floor. Therefore, the number of supporting beams 3 used can be appropriately reduced, that is, in a single floor unit 21 There is no need to install the supporting beams 3 below, and only one supporting beam 3 is required between every two floor units 21. In this way, due to the reduction in the number of supporting beams 3, the vehicle is effectively reduced to a certain extent. The overall weight of the body to meet the requirements of lightweight.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (12)

1. A vehicle body floor structure, characterized in that, comprising: floor frame; a floor body, the floor body being detachably mounted on the floor frame, wherein the floor body includes a plurality of floor units, wherein adjacent floor units are detachably connected; and A plurality of support beams, each of which is arranged on the floor frame, is used to support the floor body, wherein one of the support beams is provided between every two of the floor units. 2 . The vehicle body floor structure according to claim 1 , wherein the floor frame comprises a first side beam and a second side beam arranged in parallel with the first side beam; 3 . The floor frame further includes a second end beam in which the first end beam and the first end beam are arranged in parallel, wherein both the first end beam and the second end beam are connected to the first end beam. The first side beam and the second side beam are arranged vertically. 3 . The vehicle body floor structure according to claim 2 , wherein the opposite sides of the first side beam and the second side beam are each configured with a centerline extending toward the centerline of the floor frame. 4 . support. 4 . The vehicle body floor structure according to claim 3 , wherein each of the floor units comprises at least three floor modules, wherein adjacent floor modules are detachably connected. 5 . 5 . The vehicle body floor structure according to claim 4 , wherein a first overlapping portion is configured on each side of each of the support beams facing the first end beam; 5 . A second overlapping portion is formed on the side of each of the support beams facing the second end cross beam. 6 . The vehicle body floor structure according to claim 5 , wherein a first hollow connection is installed on each of the floor modules and the part that contacts the first side beam or the second side beam. 7 . wherein the lower end of the first hollow connecting piece is overlapped on the support portion of the first side beam or the second side beam on the corresponding side and riveted into one with the support portion, the The upper end of the first hollow connector is configured with a first flange extending toward the direction of the first side beam or the second side beam, wherein the first flange overlaps the first flange on the corresponding side The side beam or the second side beam is riveted integrally with the first side beam or the second side beam on the corresponding side. 7 . The vehicle body floor structure according to claim 6 , wherein a second hollow connecting piece is installed on each of the floor modules and the positions in contact with the support beams. 8 . 8 . The vehicle body floor structure according to claim 7 , wherein the lower end of the second hollow connecting member disposed on the left side of the support beam is overlapped on the first overlap portion and connected with the first overlap portion. 9 . riveted as one; The upper end of the second hollow connector disposed on the left side of the support beam is configured with a second flange extending in the direction of the support beam, and the second flange overlaps on the left side of the support beam The end face is riveted into one piece. 9 . The vehicle body floor structure according to claim 8 , wherein the lower end of the second hollow connecting piece disposed on the right side of the support beam is overlapped on the second overlap portion and is connected with the second overlap portion. 10 . riveted as one; The upper end of the second hollow connector disposed on the right side of the support beam is configured with a third flange extending in the direction of the support beam, and the third flange overlaps on the right side of the support beam The end face is riveted into one piece. 10 . The vehicle body floor structure according to claim 9 , wherein the adjacent floor modules are riveted into one body through a third hollow connecting piece and a fourth hollow connecting piece, respectively. 11 . 11 . The vehicle body floor structure according to claim 10 , wherein the bottom end of the third hollow connecting piece is overlapped on the bottom end extension of the fourth hollow connecting piece and riveted integrally therewith, 11 . The top end extension of the third hollow connecting piece overlaps with the top end of the fourth hollow connecting piece and is riveted integrally therewith. 12. A rail vehicle, characterized in that it comprises the vehicle body floor structure according to any one of the preceding claims 1 to 11.