WO2025148145A1 - Modular articulated container flatcar body - Google Patents

Abstract

A modular articulated container flatcar body, which relates to the technical field of railway freight vehicles. The modular articulated container flatcar body comprises an articulation module (3), and two sides of the articulation module (3) are each provided with an end module (1, 5). At least one intermediate module (2, 4) is arranged between the articulation module (3) and an end module (1, 5). The two end modules (1, 5) and the two intermediate modules (2, 4) are all interchangeable. Each intermediate module (2, 4) comprises at least one sub-module (20). Lower parts of the end modules (1, 5) and the articulation module (3) are provided with a car body running part. A modular design is adopted, the end modules (1, 5), the intermediate modules (2, 4), and the articulation module (3) are provided, and said modules can be connected by means of bolts or rivets. As a result, the interchangeability, universality, and maintainability of the components can be improved, solving the problem of poor interchangeability caused by existing underframes adopting an integral welded structure.

Description

A modular articulated container flat car body

The present invention claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 10, 2024, with application number 202410042454.9 and invention name “A Modular Articulated Container Flat Car Body”, the entire contents of which are incorporated by reference into the present invention and constitute a part of the present invention for all purposes.

Technical Field

The invention relates to the technical field of railway freight vehicles, in particular to a modular articulated container flat car body.

Background Art

Railway transportation equipment includes open wagons, flat wagons, covered wagons, tank wagons, hopper wagons and special vehicles, among which flat wagons include two types: container-specific flat wagons and shared flat wagons. At present, railway flat wagons are transported after being assembled into single-section trains. A single-section vehicle consists of a single car body, two running gears, a set of braking systems and two sets of coupler buffer systems, and the existing vehicle chassis adopts an integral welded structure. Existing flat wagons have the following shortcomings:

(1) The existing chassis adopts an integral welded structure, which has poor interchangeability;

(2) When trains are transporting containers, the axle load is not used effectively;

(3) Due to vehicle structure limitations, it is not possible to simultaneously install chain hooks, automatic couplers, and DAC digital automatic couplers;

(4) Due to the large gap in the traditional coupler buffer device, the vehicle is subject to a large longitudinal impact force during operation, the damage rate of goods during transportation is high, and the vehicle's operating dynamics performance is poor.

(5) Due to its insufficient structural strength and rigidity, it is difficult to meet the load-bearing requirements of containers of different specifications.

Summary of the invention

In view of the shortcomings of the prior art, the purpose of the present invention is to provide a modular articulated container flat car body, which adopts a modular design and each sub-module can be connected by bolts or rivets to improve the interchangeability, versatility and maintainability of the components, and solve the problem of poor interchangeability caused by the overall welding structure of the existing chassis. In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

The present invention provides a modular articulated container flat car body, comprising a joint module and an end module on each side thereof, at least one intermediate module is arranged between the joint module and the end module; the two end modules and the two middle modules are interchangeable, each intermediate module comprises at least one sub-module, and a body walking portion is arranged at the lower part of each end module and the joint module.

As a further implementation, the end module is located at the end of the vehicle body chassis, and includes an end bolster structure, a connecting beam, and a plurality of end module side beams.

As a further implementation, the end bolster and the connecting beam are centrally arranged, and the end module side beams are distributed on both sides of the end bolster and the connecting beam and are arranged transversely parallel to the vehicle body.

As a further implementation method, the end traction beam includes an end beam, a traction beam and a bolster beam, the end beam is located at the end where the coupler is installed; the traction beam is arranged behind the end beam to install a buffer device; the bolster beam is arranged near the connecting beam to connect the bogie so as to transmit the force on the car body to the lower running part of the car body.

As a further implementation method, each of the sub-modules is composed of a middle module side beam, a middle module cross beam and an auxiliary longitudinal beam.

As a further implementation, the middle module side beam and the auxiliary longitudinal beam are arranged along the longitudinal direction of the vehicle body, and the middle module cross beam is arranged along the transverse direction of the vehicle body.

As a further implementation method, the joint module is located in the center of the entire vehicle body to connect the left and right parts of the vehicle body. The joint part thereof adopts a flexible connection, which can transmit longitudinal and vertical forces and can realize rotation around the central joint part.

As a further implementation method, the joint module is composed of a joint module connecting beam, a joint structure, a joint module cross beam and multiple joint module side beams. The joint structure is provided with a spherical center plate and an upper side bearing structure connected to the lower center plate and side bearing support of the bogie to transmit the force on the car body to the lower running part of the car body.

As a further implementation method, different modules of the vehicle body can be connected by welding, bolting or riveting.

As a further implementation method, a floor and a container locking device are provided on the vehicle body, and the floor can be a steel floor, a wooden floor or a composite floor.

The beneficial effects of the present invention are as follows:

1. The present invention adopts a modular design, and is provided with end modules, middle modules and joint modules, and the modules can be connected by bolts or rivets, which can improve the interchangeability, versatility and maintainability of the components, and solve the problem of poor interchangeability caused by the integral welding structure of the existing chassis.

2. Compared with the known single-section flat car, the present invention reduces the number of bogies and coupler buffer devices, reduces the vehicle's own weight, reduces maintenance costs, can fully utilize the vehicle's axle weight during transportation, and improves vehicle transportation efficiency.

3. The end traction pillow of the present invention can simultaneously meet the installation requirements of chain hooks, automatic couplers and DAC digital automatic couplers, providing strong support for the digitalization and informatization of freight trains.

4. The present invention is supported on the running gear between two adjacent vehicles through an articulated connector, so that the vehicles can not only rotate relatively in the horizontal plane, but also have relative displacement in the vertical and inclined planes. It can adapt to the vertical height difference commonly existing at the connecting ends of adjacent vehicles caused by ups and downs of the line, uneven tracks and wear of the internal parts of the connector itself. At the same time, the gapless traction structure is adopted to eliminate the excessive swing angle of the coupler when the vehicle passes through a curve, so that the vehicle runs more smoothly.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

FIG1 is a schematic diagram of a vehicle body structure according to an embodiment of the present invention;

FIG2 is a schematic diagram of a vehicle body end traction pillow structure according to an embodiment of the present invention;

FIG3 is a schematic diagram of another vehicle body end bolster structure according to an embodiment of the present invention;

FIG4 is a schematic diagram of the structure of a joint module according to an embodiment of the present invention;

FIG5 is a front view of the joint module structure according to an embodiment of the present invention;

FIG6 is a schematic diagram of multiple sets of container locking devices installed in an embodiment of the present invention;

FIG. 7 is a schematic diagram of loading a container with a whole vehicle according to an embodiment of the present invention.

In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

In the figure: 1. first end module; 10. end traction pillow; 101. end beam; 102. traction beam; 103. pillow beam; 11. end module side beam; 12. connecting beam; 13. end module cross beam; 2. first middle module; 20. submodule; 201. middle module side beam; 202. middle module cross beam; 203. auxiliary longitudinal beam; 3. joint module; 30. joint module connecting beam; 31. joint structure; 32. joint module side beam; 33. joint module cross beam; 4. second middle module; 5. second end module; 6. container locking device.

DETAILED DESCRIPTION

It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

In a typical embodiment of the present invention, referring to FIG1 , a modular articulated container flat car body includes a joint module 3 and an end module on each side thereof, and at least one intermediate module is provided between the joint module 3 and the end module.

In this embodiment, there are two intermediate modules, that is, there is one intermediate module on each side of the joint module 3. Of course, it can be understood that in other embodiments, it is not limited to the two intermediate modules of this embodiment.

The two middle modules are respectively the first middle module 2 and the second middle module 4, and the two end modules are respectively the first end module 1 and the second end module 5. The first end module 1 and the second end module 5, the first middle module 2 and the second middle module 4 are interchangeable.

The two middle modules are connected together by the joint module 3. Each middle module includes at least one submodule 20. The two end modules are arranged at the outer ends of the two middle modules and connected thereto. The different modules of the vehicle body can be connected by welding, bolting or rivet connection.

This embodiment adopts a modular design, and is provided with end modules, middle modules and joint modules, and the modules can be connected by bolts or rivets, which can improve the interchangeability, versatility and maintainability of the components, and solve the problem of poor interchangeability caused by the integral welding structure of the existing chassis.

The end module is located at the end of the vehicle body chassis, and includes an end bolster 10 structure, a connecting beam 12 and a plurality of end module side beams 11 .

The end bolster 10 and the connecting beam 12 are arranged in the center, and the end module side beams 11 are distributed on both sides of the end bolster 10 and the connecting beam 12 and are arranged transversely parallel to the vehicle body.

As shown in Fig. 2 and Fig. 3, the end traction bolster 10 comprises an end beam 101, a traction beam 102 and a bolster 103. The end beam 101 is located at the end where the coupler is installed; the traction beam 102 is arranged behind the end beam 101 and is used to install a buffer device; the bolster 103 is arranged near the connecting beam 12 and is used to connect the bogie so as to transmit the force on the car body to the running part under the car body. The traction beam 102 is provided with an open groove for connecting the coupler.

The end traction pillow 10 of this embodiment can simultaneously meet the installation requirements of chain hooks, automatic couplers and DAC digital automatic couplers, providing strong support for the digitalization and informatization of freight trains.

In addition, compared with the known single-section flat car, this embodiment reduces the number of bogies and coupler buffer devices, reduces the vehicle's own weight, reduces maintenance costs, and can fully utilize the vehicle's axle weight during transportation, thereby improving Vehicle transportation efficiency.

As shown in FIG. 1 , the middle module is located between the end module and the joint module 3 , and each middle module includes at least one submodule 20 .

Each submodule 20 is composed of a middle module side beam 201, a middle module cross beam 202 and an auxiliary longitudinal beam 203. The middle module side beam 201 and the auxiliary longitudinal beam 203 are arranged along the longitudinal direction of the vehicle body, and the middle module cross beam 202 is arranged along the transverse direction of the vehicle body. Among them, the middle module side beam 201, the middle module cross beam 202 and the auxiliary longitudinal beam 203 can adopt an "I"-shaped structure, square steel, H-shaped steel or plate assembly welding structure.

The number and length of the middle modules can be set according to actual needs, and together with the end modules 1/5 and the joint module 3, they form a vehicle group.

As shown in Figures 1, 4 and 5, the joint module 3 is located in the center of the entire vehicle body, and is used to connect the left and right parts of the vehicle body. Its joint parts are flexibly connected, which can transmit longitudinal and vertical forces and can rotate around the central joint part. By rotating around the central joint part, the requirements of the vehicle passing through curves can be met.

The joint module 3 is composed of a joint module connecting beam 30, a joint structure 31, a joint module cross beam 33 and multiple joint module side beams 32. The joint structure 31 is provided with a spherical center plate and an upper side bearing structure connected to the lower center plate and side bearing support of the bogie to transmit the force on the car body to the lower running part of the car body.

The joint structure 31 of this embodiment is the prior art, which adopts the joint connector in CN114954554B. Only three bogies are required between the two car bodies on which the joint connector is installed, so the number of bogies is reduced, the axle weight of the bogies is more fully utilized, and the quality of the train is reduced.

The joint connector is supported on the running gear between two adjacent vehicles, so that the vehicles can not only rotate relatively in the horizontal plane, but also have relative displacement in the vertical and inclined planes. It can adapt to the vertical height difference between the connecting ends of adjacent vehicles caused by the ups and downs of the line, the unevenness of the track and the wear of the internal parts of the connector itself. At the same time, the gapless traction structure is adopted to eliminate the excessive swing angle of the coupler when the vehicle passes through the curve, making the vehicle run more smoothly.

As shown in Fig. 6, the vehicle body is provided with a floor and a container locking device 6, and the floor can be a steel floor, a wooden floor or a composite floor. The vehicle body can realize the loading of containers and other goods of various specifications according to the number of container locking devices and the setting of the floor.

Examples of loading conditions for containers of different specifications are shown in Figure 7.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. 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 (10)

A modular articulated container flat car body, characterized in that it includes a joint module and an end module on each side thereof, at least one intermediate module is provided between the joint module and the end module; the two end modules and the two middle modules are interchangeable, each intermediate module includes at least one sub-module, and a body walking portion is provided at the lower part of each end module and the joint module. According to a modular articulated container flat car body according to claim 1, it is characterized in that the end module is located at the end of the car body chassis, and includes an end bolster structure, a connecting beam and a plurality of end module side beams. According to a modular articulated container flat car body according to claim 2, it is characterized in that the end bolster and the connecting beam are arranged centrally, and the end module side beams are distributed on both sides of the end bolster and the connecting beam and are arranged laterally parallel to the car body. According to claim 3, a modular articulated container flat car body is characterized in that the end traction beam includes an end beam, a traction beam and a bolster beam, the end beam is located at the end where the coupler is installed; the traction beam is arranged behind the end beam to install a buffer device; the bolster beam is arranged near the connecting beam to connect the bogie so as to transmit the force on the car body to the lower running part of the car body. The modular articulated container flat car body according to claim 1 is characterized in that each of the sub-modules is composed of a combination of a middle module side beam, a middle module cross beam and an auxiliary longitudinal beam. The modular articulated container flat car body according to claim 5 is characterized in that the middle module side beams and the auxiliary longitudinal beams are arranged along the longitudinal direction of the car body, and the middle module cross beams are arranged along the transverse direction of the car body. According to a modular articulated container flat car body according to claim 1, it is characterized in that the joint module is located in the center of the entire car body to connect the left and right parts of the car body, and its joint part adopts a flexible connection to transmit longitudinal and vertical forces and can realize rotation around the central joint part. A modular articulated container flat car body according to claim 7, characterized in that the joint module is composed of a joint module connecting beam, a joint structure, a joint module cross beam and a plurality of joint module side beams, and the joint structure is provided with a spherical center plate and an upper side bearing structure connected to the lower center plate and side bearing support of the bogie to transmit the force on the car body to the lower running part of the car body. The modular articulated container flat car body according to claim 1 is characterized in that different modules of the body can be connected by welding, bolting or riveting. According to the modular articulated container flat car body according to claim 1, it is characterized in that a floor and a container locking device are provided on the car body, and the floor can be a steel floor, a wooden floor or a composite floor.