CN213109335U

CN213109335U - Rail vehicle and vehicle end connecting structure of hinged vehicle body thereof

Info

Publication number: CN213109335U
Application number: CN202021885602.7U
Authority: CN
Inventors: 李陆星; 赵辉; 蔡军爽; 张永贵; 王金莎
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-04
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a rail vehicle and a vehicle end connecting structure of a hinged vehicle body thereof, wherein the vehicle end connecting structure comprises a traction beam and a sleeper beam welded and fixed with the end part of the traction beam, and the traction beam and the sleeper beam are made of aluminum alloy; the mounting seat is provided with a first mounting surface fixed with the sleeper beam, a second mounting surface fixed with the traction beam and a third mounting surface used for fixing the hinge mechanism, wherein the first mounting surface is fixedly connected with the sleeper beam, the second mounting surface is fixedly connected with the traction beam through fasteners, and the second mounting surface is fixedly connected with the traction beam through fasteners. According to the scheme, the self weight and the size of the structure can be effectively controlled through structural optimization, and a good stress state can be obtained on the basis of reducing the structural welding amount.

Description

Rail vehicle and vehicle end connecting structure of hinged vehicle body thereof

Technical Field

The invention relates to the technical field of rail transit, in particular to a rail vehicle and a vehicle end connecting structure of a hinged vehicle body of the rail vehicle.

Background

In the design process of the articulated motor train unit, the train end connecting structure needs to transmit larger load and ensure the sufficient transmission of the load in the high-low change. At present, the existing articulated motor train unit has a train end connecting structure made of pure aluminum alloy materials, and has a series of problems of large weight, large size, large welding amount, small safety allowance of a stress concentration region and the like.

In view of the above, a new approach is needed to provide an innovative solution for a vehicle end connection structure of a hinged vehicle body to overcome the above technical drawbacks.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the invention provides a railway vehicle and a vehicle end connecting structure of a hinged vehicle body thereof, which can effectively control the self weight and the size of the structure through structural optimization, and can obtain a good stress state on the basis of reducing the welding amount of the structure.

The utility model provides a vehicle end connecting structure of a hinged vehicle body, which comprises a traction beam and a sleeper beam welded and fixed with the end part of the traction beam, wherein the traction beam and the sleeper beam are made of aluminum alloy; the mounting seat is provided with a first mounting surface fixed with the sleeper beam, a second mounting surface fixed with the traction beam and a third mounting surface used for fixing the hinge mechanism, wherein the first mounting surface is fixedly connected with the sleeper beam, the second mounting surface is fixedly connected with the traction beam through fasteners, and the second mounting surface is fixedly connected with the traction beam through fasteners.

Preferably, the mounting seat is formed by welding steel plates, and the first mounting surface, the second mounting surface and the third mounting surface are formed by machining.

Preferably, the upper surface of the end part of the traction beam is provided with a concave mounting part, the sleeper beam is arranged in the concave mounting part, and the sleeper beam is approximately flush with the upper surface of the traction beam.

Preferably, the two traction beams are arranged in parallel, the two side plates of the mounting seat are inserted between the two traction beams, the outer surfaces of the side plates form second mounting surfaces fixed to the traction beams on the corresponding sides, the upper surfaces of the top plates of the mounting seat fixed to the two side plates form first mounting surfaces fixed to the sleeper beam, and the first mounting surfaces are approximately flush with the bottom surfaces of the concave mounting portions of the traction beams.

Preferably, the outer surface of an end plate of the mounting seat fixed with the two side plates forms a third mounting surface for fixing the hinge mechanism, and the end plate of the top plate longitudinally extends out of the outer surface of the end plate.

Preferably, two side plates of the mounting seat respectively extend longitudinally to form a reinforcing fixed section, and the reinforcing fixed section is fixed with the traction beam on the inner side of the concave mounting part.

Preferably, the mounting seat further comprises a top rib plate, a transverse rib plate and a longitudinal rib plate, the top rib plate is fixedly arranged between the two reinforcing and fixing sections on the inner side of the top plate, the transverse rib plate is fixedly arranged between the two side plates below the top plate, and the longitudinal rib plate is fixedly arranged between the end plate and the transverse rib plate.

Preferably, the traction beam is made of an aluminum alloy section, and the sleeper beam is formed by assembling and welding the aluminum alloy section and an aluminum alloy plate.

Preferably, the fastener is a rivet or a threaded fastener.

The invention also provides a railway vehicle which comprises vehicle bodies and the hinge structure positioned between the adjacent vehicle bodies, wherein the end part of each vehicle body adopts the vehicle end connecting structure for hinging the vehicle bodies.

To current articulated automobile body, the utility model discloses the compound car end structure of steel aluminium has creatively been proposed to realize the transmission of articulated mechanism load. Specifically, the material of draw beam and sleeper beam is the aluminum alloy, passes through fastener respectively between the two with steel construction mount pad fixed connection to dispose the installation face that is used for fixed hinge mechanism on this steel construction mount pad, provide functional interface such as connection and location for hinge mechanism from this. Compared with the prior art, the utility model discloses following beneficial technological effect has:

firstly, this scheme adopts steel aluminium composite construction, provides the hinge mechanisms installation interface by the steel construction mount pad, will come from hinge mechanisms's low high load transmission to higher regions such as towing beam, with the stress concentration setting that the transmission of load height leads to in the steel construction position, improved the security of structure greatly.

And compared with a vehicle end connecting structure made of pure aluminum alloy, the structure size can be reduced, the space utilization efficiency is greatly improved, and the risk of interference with a traveling mechanism is reduced.

And thirdly, the weight of the pure aluminum material structure under the same load requirement is reduced through the steel-aluminum composite structure, and the light weight degree of the vehicle is improved.

Finally, the scheme fixedly connects the traction beam and the sleeper beam through the fastener, so that the reliability of connection between the steel-aluminum structures is ensured; the welding amount and the adjustment and repair amount are reduced, and the manufacturing cost can be further reduced on the basis of effectively improving the production efficiency and the qualified rate.

Drawings

FIG. 1 is a schematic view of a vehicle end connection structure of a hinged vehicle body according to an embodiment;

FIG. 2 is a schematic view of the assembly relationship between the steel structure mounting seat and the draft sill of the vehicle end connection structure shown in FIG. 1;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a top view of fig. 1.

In the figure:

the mounting seat 1, the top plate 11, the first mounting surface 111, the side plate 12, the second mounting surface 121, the reinforcing and fixing section 122, the end plate 13, the third mounting surface 131, the reinforcing rib plate 14, the top rib plate 15, the transverse rib plate 16, the longitudinal rib plate 17, the sleeper beam 2, the traction beam 3, the concave mounting part 31, the rivet 4 and the mounting interface 5.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Without loss of generality, the embodiment takes the towing beam and the sleeper beam shown in the figures as a description main body, and specifically describes a concrete scheme of the vehicle end connecting structure of the articulated vehicle body. It should be understood that the self-body structure is not the core invention of the present application, and the main body thereof does not have a substantial limiting effect on the technical solution claimed in the present application.

Referring to fig. 1, there is shown an overall structural view of the vehicle-end connecting structure of the articulated vehicle body according to the present embodiment.

This a car end connection structure for articulated automobile body, based on the tip formation structure of aluminium alloy material's sleeper beam 2 and draw beam 3 is whole, and its steel construction mount pad 1 is fixed to be set up between the two.

The end parts of the aluminum alloy sleeper beam 2 and the aluminum alloy traction beam 3 are welded and fixed, and the steel structure mounting seat 1 is fixedly connected with the sleeper beam 2 and the traction beam 3 through fasteners (4) respectively.

Specifically, the mount 1 has a first mounting surface 111 to which the bolster 2 is fixed, a second mounting surface 121 to which the draft sill 3 is fixed, and a third mounting surface 131 for fixing a hinge mechanism (not shown in the drawings). In the scheme, the first mounting surface 111 and the sleeper beam 2, and the second mounting surface 121 and the traction beam 3 are fixedly connected through rivets 4 respectively; when the structure is designed, a corresponding number of rivets 4 are arranged according to specific bearing requirements and are penetrated and fixed. Here, the steel structure mounting base 1 provides a functional mounting interface 5 for the hinge mechanism, such as connection and positioning, and transmits a low-height load from the hinge mechanism to a higher region (a load transmission path is shown by an arrow in fig. 1) such as a draft sill, and concentrates a stress caused by the high-height load transmission at a steel structure position, thereby greatly improving the safety of the structure.

In the scheme, the traction beam and the sleeper beam are fixedly connected through the fasteners, so that the connection reliability between the steel-aluminum structures is ensured; the welding quantity and the adjustment and repair quantity are reduced, and the production efficiency and the qualified rate are effectively guaranteed. It will be appreciated that in the above-described fixed connection of the mounting block 1 to the bolster 2 and draft sill 3, such as but not limited to the rivet fastening shown in the preferred example of the drawings, the fastener may be a threaded fastener as long as the basic functional requirements are met. Compared with the prior art, the rivet fixing mode has better operation manufacturability and higher connection reliability.

Compared with a vehicle end connecting structure made of pure aluminum alloy, the vehicle end connecting structure made of the pure aluminum alloy has the advantages that the steel-aluminum composite structure is adopted, the structure size can be reduced, and the space utilization efficiency is greatly improved; and the weight of the pure aluminum material structure under the same load requirement can be reduced, and the light weight degree of the vehicle is improved.

Preferably, the mounting seat 1 can be formed by welding steel plates, so that the manufacturing cost is low; on the basis, the corresponding first mounting surface 111, the second mounting surface 121 and the third mounting surface 131 are formed by machining process to ensure the assembling precision.

In order to obtain a better overall stress state of the structure, the associated adaptive structure can be further optimized. Please refer to fig. 2, which is a schematic view of an assembly relationship between a steel structure mounting seat and a towing beam of the vehicle end connection structure shown in fig. 1.

As shown in fig. 1 and 2, a concave mounting portion 31 is formed on an upper surface of an end portion of the traction beam 3, the bolster 2 is placed in the concave mounting portion 31, the bolster 2 and the lower surface are welded and fixed, and the bolster 2 is substantially flush with the upper surface of the traction beam 3. It should be understood that "substantially flush" means that the bolster 2 overlaps the upper portion of the end of the draft sill 3 in the height direction, and the upper surfaces of the two are substantially flush to achieve good overall load carrying capacity, while facilitating proper arrangement of the functional components of the upper body and the like,

the two traction beams 3 are arranged in parallel and transversely spaced, so that the novel traction device has good bearing capacity.

As mentioned above, the mounting base 1 can be formed by welding steel plates, and the specific structural configuration can be determined according to different product types. For example, but not limited to, the mounting base 1 shown in the figures is constructed, and the steel structure mounting base 1 takes into account the design requirements of good bearing capacity and self-weight control, and mainly comprises a top plate 11 horizontally arranged, two side plates 12 longitudinally arranged in parallel and an end plate 13 transversely arranged, wherein the top plate 11, the two side plates 12 and the end plate 13 are mutually perpendicular and are respectively welded and fixed. Please refer to fig. 3 and fig. 4 together, wherein fig. 3 is a side view of fig. 1, and fig. 4 is a top view of fig. 1.

Two side plates 12 of the mounting base 1 are inserted between the two traction beams 3, and the outer surfaces of the side plates 12 form second mounting surfaces 121 which are respectively fixed with the corresponding side traction beams 3; a first mounting surface 111 is formed on the upper surface of the top plate 11 fixed with the two side plates 12 and fixed with the sleeper beam 2; the first mounting surface 111 is substantially flush with the bottom surface of the recessed mounting portion 31 of the draft sill 3, i.e., the first mounting surface 111 of the top plate 11 and the bottom surface of the recessed mounting portion 31 of the draft sill 3 together establish a fixed connection that is compatible with the bolster 2.

Wherein, the outer surface of the end plate 13 fixed with the two side plates 12 forms a third mounting surface 131 for fixing the hinge mechanism, that is, the mounting interface of the hinge mechanism (not shown in the figure) is located below relative to the sleeper beam 2; further, the end plate of the top plate 11 extends longitudinally beyond the outer surface of the end plate 13, but a reinforcing rib 14 may be provided between the end plate of the top plate 11 and the outer surface of the end plate 13.

In addition, the two side plates 12 of the mounting seat 1 extend longitudinally to form a reinforcing fixing section 122, and the reinforcing fixing section 122 is fixed with the traction beam 3 inside the concave mounting portion 31. As shown in fig. 2, 3 and 4, based on the body of the side plate 12, the reinforcing fixing section 122 extends longitudinally inward and vertically upward along the towing beam 3, so as to increase the adaptive surface for riveting and fixing between the mounting seat 1 and the towing beam 3, thereby improving the bearing capacity of the structure.

In addition, the mounting base 1 further comprises a top rib 15, a transverse rib 16 and a longitudinal rib 17 which are connected with the foundation structure in a welding mode. The top rib plate 15 is fixedly arranged between the two reinforcing and fixing sections 122 on the inner side of the top plate 11, specifically, the top rib plate 15 is provided with a groove to adapt to the assembly requirements of the vehicle body related structure, and meanwhile, compared with the plate thickness of the top plate 11, the top rib plate 15 can select a thickening plate according to the requirements. Wherein, the transverse rib plate 16 is fixedly arranged between the two side plates 12 below the top plate 11, and the longitudinal rib plate 17 is fixedly arranged between the end plate 13 and the transverse rib plate 16. From this, further improve whole bearing capacity, guarantee structure security on the whole.

It should be noted that the draft sill 3 and the sleeper beam 2 may be formed by a section bar, or by assembly welding a section bar and a plate. Preferably, the traction beam 3 is made of an aluminum alloy section, and the sleeper beam 2 is formed by assembling and welding the aluminum alloy section and an aluminum alloy plate.

The following briefly describes the process of assembling the end connection structure of the articulated vehicle body according to the present embodiment.

In this scheme, mount pad 1 is formed by polylith steel sheet tailor-welding, sets up different thickness according to different position intensity needs, and the whole processing after the tailor-welding is accomplished guarantees that each riveting mounting plane has good plane degree. The sleeper beam 2 is formed by assembling and welding a plurality of sectional materials and plates, and the riveting plane and the rivet mounting hole are processed after the whole assembling and welding process is finished. The traction beam 3 can be formed by processing a single section bar, is further processed after being riveted with the mounting seat 1, and is finally assembled and welded with the sleeper beam 2. In the whole structure, the steel mounting seat 1 adopts smaller structural size and weight to fulfill the aim of transferring the load of the hinge mechanism, and has higher safety factor.

In addition to the vehicle end connection structure, the present embodiment also provides a railway vehicle, which includes a vehicle body, an articulated structure located between adjacent vehicle bodies, and a bogie, wherein the vehicle end connection structure for articulating the vehicle body is adopted at an end portion of the vehicle body. It should be noted that other functions of the rail vehicle constitute non-core points of the invention, and those skilled in the art can implement the functions by using the prior art, so that detailed description is omitted herein.

In the description of the present invention, the terms "lateral", "longitudinal", "top" and "bottom" and the like indicate orientations or positional relationships that are defined based on a general reference of a vehicle body, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. The vehicle end connecting structure of the articulated vehicle body comprises a traction beam and a sleeper beam welded and fixed with the end part of the traction beam, wherein the traction beam and the sleeper beam are made of aluminum alloy; the mounting seat is characterized by further comprising a steel structure mounting seat, wherein the mounting seat is provided with a first mounting surface fixed with the sleeper beam, a second mounting surface fixed with the traction beam and a third mounting surface used for fixing the hinge mechanism, and the first mounting surface, the sleeper beam, the second mounting surface and the traction beam are fixedly connected through fasteners respectively.

2. The car-end connection structure of a hinged car body according to claim 1, wherein said mount base is formed by welding a steel plate, and said first mount surface, said second mount surface, and said third mount surface are formed by machining.

3. The vehicle end connection structure of an articulated vehicle body according to claim 2, wherein a recessed mounting portion is provided on an upper surface of an end portion of the trailing beam, the bolster is placed in the recessed mounting portion, and the bolster is substantially flush with an upper surface of the trailing beam.

4. The vehicle-end connecting structure of a hinged vehicle body according to claim 3, wherein the number of the draft sill is two, the two side plates of the mount are inserted between the two draft sills, the outer surfaces of the side plates form the second mounting surfaces fixed to the draft sills on the corresponding sides, the upper surfaces of the top plates of the mount fixed to the two side plates form the first mounting surfaces fixed to the bolster, and the first mounting surfaces are substantially flush with the bottom surface of the recessed mounting portion of the draft sill.

5. The vehicle end connecting structure of a hinged vehicle body according to claim 4, wherein an outer surface of an end plate of the mount base to which the two side plates are fixed forms a third mounting surface for fixing the hinge mechanism, and an end plate of the top plate protrudes in a longitudinal direction from an outer surface of the end plate.

6. The vehicle end connecting structure of a hinged vehicle body according to claim 5, wherein two side plates of the mount base each extend longitudinally to form a reinforcing fixing section, and the reinforcing fixing section is fixed to the draft sill inside the recessed mounting portion.

7. The vehicle end connecting structure of the articulated vehicle body according to claim 6, wherein the mounting seat further comprises a top rib plate, a transverse rib plate and a longitudinal rib plate, the top rib plate is fixedly arranged between the two reinforcing and fixing sections at the inner side of the top plate, the transverse rib plate is fixedly arranged between the two side plates below the top plate, and the longitudinal rib plate is fixedly arranged between the end plate and the transverse rib plate.

8. The vehicle end connecting structure of a hinged vehicle body according to claim 7, wherein the draft sill is made of an aluminum alloy section, and the bolster is formed by assembly welding of an aluminum alloy section and an aluminum alloy plate.

9. The vehicle end connection structure of an articulated vehicle body according to claim 1, wherein the fastener is a rivet or a threaded fastener.

10. A railway vehicle comprising vehicle bodies and an articulated structure between adjacent vehicle bodies, characterized in that the end portions of the vehicle bodies adopt the vehicle-end connecting structure of the articulated vehicle body according to any one of claims 1 to 9.