AU2021429754A1 - Vehicle body assembly and vehicle having same - Google Patents

Abstract

A vehicle body assembly comprising: a middle beam (10); multiple end beams (20), which respectively are provided on both sides of the end sections of the middle beam and are connected to the middle beam; multiple reinforcing beams (30), which are connected between the middle beam and the end beams. The reinforcing beams, the middle beam, and the end beams are joined to form a frame structure. The end beams correspondingly comprise a first upper cover plate (21), a first lower cover plate (22), and two first webs (23). The two first webs are provided at an interval between the first upper cover plate and the first lower cover plate so that the end beams form hollow structures. Also disclosed is a vehicle having the vehicle body assembly.

Description

Vehicle Body Assembly and Vehicle Having Same

Cross-Reference to Related Application

The present application claims the priority of Chinese Patent Application CN202110217795.1, filed in the Chinese Patent Office on February 26, 2021, and entitled "Vehicle Body Assembly and Vehicle Having Same", the entire contents of which are herein incorporated by reference.

Technical Field

The present invention relates to a technical field of railway transportation, and in particular to a vehicle body assembly and a vehicle having the same.

Background

Container transportation is an advanced mode of transportation, and has the advantages of high transportation efficiency, low transportation cost, convenient combined transportation, less cargo damage, door-to-door transportation, and so on. It is a main mode of modern logistics and multimodal transportation, and thus has been widely used by countries around the world.

At present, in order to reduce the self-weights of container vehicles and increase the bearing capacity, so as to improve the economic benefits of transportation, most containers with lighter self-weight requirements use vehicle body structures in which middle beams are used for bearing and no side beam is provided. A container vehicle employing the vehicle body structure has the characteristics of light self-weight and large bearing capacity. However, since there is no side beam, a vertical load on the end part of the vehicle is borne by an end beam of the vehicle, and is transmitted to the end part of a traction beam through the end beam, resulting in the casting impact seat at the end part of the traction beam being subjected to a large force, and fatigue cracks are prone to occur. At the same time, since there is no side beam, the vertical load on the end part can only be transmitted from the end beam to the traction beam, and the two beams bear the vertical load on the end part, so that when the load on the end part is relatively large, the traction beam sags more. At the same time, due to a small moment of inertia of the end part relative to the center of a vehicle body, the dynamic performance of the vehicle is worse.

Summary

A main purpose of the present invention is to provide a vehicle body assembly and a vehicle having the same, so as to solve a problem of a low bearing capacity of vertical load in related arts.

In order to achieve the above purpose, according to one aspect of the present invention, a vehicle body assembly is provided, including: a middle beam; a plurality of end beams, which are respectively arranged on both sides of an end part of the middle beam and are connected with the middle beam; and a plurality of reinforcing beams, each of the plurality of reinforcing beams being connected between the middle beam and each of the plurality of end beams, and a frame structure being enclosed among the reinforcing beam, the middle beam and the end beam, wherein each of the plurality of end beams includes a first upper cover plate, a first lower cover plate and two first web plates, and the two first web plates are arranged at intervals between the first upper cover plate and the first lower cover plate, so that the end beam forms a hollow structure.

In some embodiments, each of the plurality of end beams further includes a first reinforcing plate, the first reinforcing plate is arranged among the first upper cover plate, the first lower cover plate and the two first web plates, four sides of the first reinforcing plate are respectively welded with the first upper cover plate, the first lower cover plate and the two first web plates, and a distance between the first reinforcing plate and a first end of the end beam is greater than a distance between the first reinforcing plate and a second end of the end beam.

In some embodiments, each of the plurality of reinforcing beams includes: a bolster beam, which is spaced apart from the end beam and is connected with the middle beam; and a longitudinal beam, which is connected between the end beam and the bolster beam, wherein the first end of the end beam is connected with the middle beam, a first end of the bolster beam is connected to the middle beam, the second end of the end beam is connected with a first end of the longitudinal beam, a second end of the bolster beam is connected with a second end of the longitudinal beam, and a reinforcing structure is arranged on the middle beam.

In some embodiments, the longitudinal beam includes a second upper cover plate, a second lower cover plate, two second web plates and a second reinforcing plate, the two second web plates are arranged at intervals between the second upper cover plate and the second lower cover plate, the second reinforcing plate is welded among the second upper cover plate, the second lower cover plate and the two second web plates, two ends of the two second web plates protrude from the second upper cover plate and the second lower cover plate, so as to form a first connecting part and a second connecting part, an end part of the first upper cover plate away from the middle beam is provided with a first protruding plate, an end part of the first lower cover plate away from the middle beam is provided with a second protruding plate, the first protruding plate is located above the first connecting part and is connected with the second upper cover plate, the second protruding plate is located below the first connecting part and is connected with the second lower cover plate, and the second reinforcing plate is arranged perpendicular to an axis of the middle beam.

In some embodiments, the bolster beam includes a third upper cover plate, a third lower cover plate, two third web plates and a third reinforcing plate, the two third web plates are arranged at intervals between the third upper cover plate and the third lower cover plate, the third reinforcing plate is welded among the third upper cover plate, the third lower cover plate and the two third web plates, an end part of the third upper cover plate away from the middle beam is provided with a third protruding plate, an end part of the third lower cover plate away from the middle beam is provided with a fourth protruding plate, the third protruding plate is located above the second connecting part and is connected with the second upper cover plate, the fourth protruding plate is located below the second connecting part and is connected with the second lower cover plate, and the third reinforcing plate is arranged parallel to the axis of the middle beam.

In some embodiments, a plurality of first reinforcing plates, a plurality of second reinforcing plates and a plurality of third reinforcing plates are provided, the plurality of first reinforcing plates are arranged at intervals, the plurality of second reinforcing plates are arranged at intervals, and the plurality of third reinforcing plates are arranged at intervals.

In some embodiments, the vehicle body assembly further includes a connecting plate, the connecting plate is arranged between two adjacent first reinforcing plates, and/or, the connecting plate is arranged between two adjacent second reinforcing plates, and/or, the connecting plate is arranged between two adjacent third reinforcing plates.

In some embodiments, a thickness of the first end of the end beam is greater than a thickness of the second end of the end beam.

In some embodiments, a thickness of the first end of the bolster beam is greater than a thickness of the second end of the bolster beam, and a thickness of the second end of the end beam is greater than the thickness of the second end of the bolster beam.

In some embodiments, a thickness of the first end of the longitudinal beam is equal to the thickness of the second end of the end beam, a thickness of the second end of the longitudinal beam is equal to the thickness of the second end of the bolster beam, and the thickness of the first end of the longitudinal beam is greater than the thickness of the second end of the longitudinal beam.

In some embodiments, four end beams, four bolster beams and four longitudinal beams are provided, each end of the middle beam is provided with two end beams, and two bolster beams and two longitudinal beams are symmetrically arranged with respect to the middle beam.

In some embodiments, the vehicle body assembly further includes two cross beams and a protective beam, the two cross beams are symmetrically arranged with respect to the middle beam, a first end of each of the two cross beams is welded with the middle beam, the cross beams are arranged at a middle of the middle beam, and the protective beam is arranged between the second end of the bolster beam and a second end of the cross beam.

In some embodiments, the vehicle body assembly further includes a braking table, which is connected between the protective beam and the middle beam.

In some embodiments, the vehicle body assembly further includes a plurality of installing parts and a hoisting part, the second end of each of the end beam is provided with one installing part, the second end of each of the cross beam is provided with two installing parts, the hoisting part is arranged at the second end of the bolster beam, and the hoisting part protrudes from the longitudinal beam.

According to another aspect of the present invention, a vehicle is provided, including a vehicle body assembly, wherein the vehicle body assembly is the above-mentioned vehicle body assembly.

By applying a technical solution of the present invention, the plurality of end beams are respectively arranged on the both sides of the end parts of the middle beam and are connected with the middle beam. The reinforcing beam is connected between the middle beam and each end beam, and the frame structure is enclosed among the reinforcing beam, the middle beam and the end beam. The end beam includes the first upper cover plate, the first lower cover plate and two first web plates, and the two first web plates are arranged at intervals between the first upper cover plate and the first lower cover plate, so that the end beam forms the hollow structure. Since the two first web plates are arranged at intervals between the first upper cover plate and the first lower cover plate, a structural strength of the end beam is effectively improved, and a possibility of deformation of the end beam is reduced. Furthermore, since the end beams are arranged on the both sides of the end part of the middle beam, when the vehicle body assembly holds heavy objects, a force on each end beam is evenly transmitted to the both sides of the end part of the middle beam, such that a bearing capacity of the vehicle body assembly is effectively improved. And arrangement of the reinforcing beam also improves the bearing capacity of the vehicle body assembly, and since the reinforcing beam is connected with the end beam and the middle beam, the force on the end beam is also transmitted to the middle beam through the reinforcing beam, in this way, the bearing capacity of the vehicle body assembly and the structural strength of the end beam are further improved. Therefore, the technical solution of the present application effectively solves the problem of the low bearing capacity of vertical load in related arts.

Brief Description of the Drawings

The drawings forming a part of the present application are used for providing a further understanding of the present invention, and exemplary embodiments of the present invention and descriptions thereof are used for explaining the present invention, but do not constitute improper limitations of the present invention. In the drawings:

Fig. 1 shows a schematic diagram of a three-dimensional structure of an embodiment of a vehicle body assembly according to the present invention;

Fig. 2 shows a bottom-view schematic diagram of the vehicle body assembly in Fig. 1;

Fig. 3 shows a partial schematic diagram of an end part of the vehicle body assembly in Fig. 1;

Fig. 4 shows a perspective-view schematic diagram of an end beam of the vehicle body assembly in Fig. 1;

Fig. 5 shows a schematic diagram of a three-dimensional structure of a first upper cover plate of the end beam in Fig. 4;

Fig. 6 shows a schematic diagram of a three-dimensional structure of a first lower cover plate of the end beam in Fig. 4;

Fig. 7 shows a perspective-view schematic diagram of a bolster beam of the vehicle body assembly in Fig. 1;

Fig. 8 shows a schematic diagram of a three-dimensional structure of a third upper cover plate of the bolster beam in Fig. 7;

Fig. 9 shows a schematic diagram of a three-dimensional structure of a third lower cover plate of the bolster beam in Fig. 7;

Fig. 10 shows a perspective-view schematic diagram of a longitudinal beam of the vehicle body assembly in Fig. 1;

Fig. 11 shows a shows a schematic diagram of a three-dimensional structure of a middle beam of the vehicle body assembly in Fig. 1; and

Fig. 12 shows a side-view schematic diagram of the middle beam in Fig. 11.

The above drawings include the following reference signs:

10. middle beam; 11. reinforcing structure; 20. end beam; 21. first upper cover plate; 211. first protruding plate; 22. first lower cover plate; 221. second protruding plate; 23. first web plate; 24. first reinforcing plate; 30. reinforcing beam; 31. bolster beam; 311. third upper cover plate; 3111. third protruding plate; 312. third lower cover plate; 3121. fourth protruding plate 313. third web plate; 314. third reinforcing plate; 315. connecting plate; 32. longitudinal beam; 321. second upper cover plate; 322. second lower cover plate; 323. second web plate; 324. second reinforcing plate; 41. first connecting part; 42. second connecting part; 50. cross beam; 60. protective beam; 70. braking table; 80. installing part; 90. hoisting part.

Detailed Description of the Embodiments

A clear and complete description of technical solutions in the embodiments of the present invention will be given below, in combination with the drawings in the embodiments of the present invention. Apparently, the embodiments described below are merely a part, but not all, of the embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature, and is in no way intended to limit the present invention and applications or uses thereof. All of other embodiments, obtained by those of ordinary skill in the art based on the embodiments in the present invention without any creative effort, fall into the protection scope of the present invention.

In related arts, in order to improve a bearing capacity, a solution of increasing a section height of a traction beam of a vehicle is commonly used. However, due to limitations of railway references in some countries, a height from a bearing surface of a container to a top surface of a track is required to be relatively low, such that the section height of the traction beam cannot be increased upwards. At the same time, most of existing technical solutions have following shortcomings:

1. A vertical load of a container at an end part of a vehicle body structure is completely transmitted from an end beam to a traction beam of a middle beam, is jointly borne by the end beam and the traction beam. Due to a limitation of a height of a bearing surface of the container, a box-shaped section height H of the traction beam cannot be excessively large, resulting in low bearing capacity of the vertical load.

2. Since the vertical load on the end part is completely transmitted from the end beam to the traction beam, a force on a connecting part among the end beam, the traction beam and a casting impact seat is relatively large, and a stress in a weld seam between an outer end plate of the end beam and the impact seat is relatively large, such that fatigue cracks are prone to occur.

3. Upper and lower cover plates of the middle beam are straight plates, connecting parts with upper and lower cover plates of the end beam and upper and lower cover plates of a bolster beam are at roots of the upper and lower cover plates of the middle beam, a difference between a distance of the upper and lower cover plates of the middle beam and a distance of the upper and lower cover plates of the bolster beam and a difference between the distance of the upper and lower cover plates of the middle beam and a distance of the upper and lower cover plates of the end beam are 8-10mm, and weld seams are located at sudden change positions of plate thickness, such that fatigue cracks are prone to occur when the end beam and the bolster beam are subjected to a relatively large vertical force.

4. Since a mass of the end part of a vehicle body is relatively small, a moment of inertia relative to the lateral center of the vehicle body is small, and a dynamic performance of the vehicle is thus worse. To improve the dynamic performance of the vehicle, the mass of the end part should be increased.

In order to solve above problems, a technical solution of the present embodiment provide a vehicle body assembly and a vehicle having the same. The vehicle body assembly not only improves a vertical bearing capacity of the traction beam, so as to avoid an occurrence of vertical crack accidents of the impact seat, but also improves the dynamic performance of the vehicle.

As shown in Figs. 1 to 6, in the present embodiment, the vehicle body assembly includes: a middle beam 10, a plurality of end beams 20 and a plurality of reinforcing beams 30. The plurality of end beams 20 are respectively arranged on both sides of an end part of the middle beam 10 and are connected with the middle beam 10. Each of the plurality of reinforcing beams 30 is connected between the middle beam 10 and each of the plurality of end beams 20, and a frame structure is enclosed among the reinforcing beam 30, the middle beam 10 and the end beam 20, wherein each of the plurality of end beams 20 includes a first upper cover plate 21, a first lower cover plate 22 and two first web plates 23, and the two first web plates 23 are arranged at intervals between the first upper cover plate 21 and the first lower cover plate 22, so that the end beam 20 forms a hollow structure.

By applying a technical solution of the present embodiment, the plurality of end beams 20 are respectively arranged on the both sides of the end part of the middle beam 10 and are connected with the middle beam 10. The reinforcing beam 30 is connected between the middle beam 10 and each end beam 20, and the frame structure is enclosed among the reinforcing beam 30, the middle beam 10 and the end beam 20. The end beam 20 includes the first upper cover plate 21, the first lower cover plate 22 and the two first web plates 23, and the two first web plates 23 are arranged at intervals between the first upper cover plate 21 and the first lower cover plate 22, so that the end beam 20 forms the hollow structure. Since the two first web plates 23 are arranged at intervals between the first upper cover plate 21 and the first lower cover plate 22, a structural strength of the end beam 20 is effectively improved, and a possibility of deformation of the end beam 20 is reduced. Furthermore, since the end beams 20 are arranged on the both sides of the end part of the middle beam 10, when the vehicle body assembly holds heavy objects, a force on each end beam 20 is evenly transmitted to the both sides of the end part of the middle beam 10, such that a bearing capacity of the vehicle body assembly is effectively improved. And arrangement of the reinforcing beam 30 also improves the bearing capacity of the vehicle body assembly, and since the reinforcing beam 30 is connected with the end beam 20 and the middle beam 10, the force on the end beam 20 is also transmitted to the middle beam 10 through the reinforcing beam 30, in this way, the bearing capacity of the vehicle body assembly and the structural strength of the end beam 20 are further improved. Therefore, the technical solution of the present embodiment effectively solves a problem of the low bearing capacity of vertical load in related arts.

As shown in Figs. 3 to 6, in the present embodiment, each of the plurality of end beams 20 further includes a first reinforcing plate 24, the first reinforcing plate 24 is arranged among the first upper cover plate 21, the first lower cover plate 22 and the two first web plates 23, four sides of the first reinforcing plate 24 are respectively welded with the first upper cover plate 21, the first lower cover plate 22 and the two first web plates 23, and a distance between the first reinforcing plate 24 and a first end of the end beam 20 is greater than a distance between the first reinforcing plate 24 and a second end of the end beam 20. Due to arrangement of the first reinforcing plate 24, the structural strength of the end beam 20 is further improved, and a deformation resistance of the end beam 20 is improved. The first reinforcing plate 24 is arranged at an end part of the end beam 20, so a structural strength of the end part of the end beam 20 is mainly improved. The first reinforcing plate 24 and the middle beam 10 are parallel to each other, so that a bearing capacity of vertical load of the end beam 20 is improved, and the end beam 20 is unlikely to deform.

As shown in Figs. 1 to 12, in the present embodiment, each of the plurality of reinforcing beams includes: a bolster beam 31, which is spaced apart from the end beam 20 and is connected with the middle beam 10; and a longitudinal beam 32, which is connected between the end beam 20 and the bolster beam 31, wherein the first end of the end beam 20 is connected with the middle beam 10, a first end of the bolster beam 31 is connected with the middle beam 10, the second end of the end beam 20 is connected with a first end of the longitudinal beam 32, a second end of the bolster beam 31 is connected with a second end of the longitudinal beam 32, and a reinforcing structure 11 is arranged on the middle beam 10. Due to arrangement of the bolster beam 31 and the longitudinal beam 32, a vertical force on the end beam 20 is transmitted to the bolster beam 31 through the longitudinal beam 32, and is then transmitted to the middle beam 10 through the bolster beam 31, such step-by-step transmission effectively reduces a force on each structure, and reduces a possibility of damage to each single component. By such arrangement, a bearing capacity of vertical load of an entire vehicle body assembly is significantly improved.

In the present embodiment, the middle beam 10 is provided with a plurality of wing edges, the plurality of wing edges are respectively connected with the end beam 20, the bolster beam 31 and a cross beam 50, and edges of the wing edges are thinned, so that the wing edges are relatively smooth when being welded with the end beam 20, the bolster beam 31 and the cross beam 50. A transition arc with a larger radius is provided at a connection position of the wing edge and the middle beam 10, so as to reduce a stress of a weld seam at this position and avoid fatigue cracks.

As shown in Fig. 10, in the present embodiment, the longitudinal beam 32 includes a second upper cover plate 321, a second lower cover plate 322, two second web plates 323 and a second reinforcing plate 324, the two second web plates 323 are arranged at intervals between the second upper cover plate 321 and the second lower cover plate 322, the second reinforcing plate 324 is welded among the second upper cover plate 321, the second lower cover plate 322 and the two second web plates 323, two ends of the two second web plates 323 protrude from the second upper cover plate 321 and the second lower cover plate 322, so as to form a first connecting part 41 and a second connecting part 42, an end part of the first upper cover plate 21 away from the middle beam is provided with a first protruding plate 211, an end part of the first lower cover plate 22 away from the middle beam 10 is provided with a second protruding plate 221, the first protruding plate 211 is located above the first connecting part 41 and is connected with the second upper cover plate 321, the second protruding plate 221 is located below the first connecting part 41 and is connected with the second lower cover plate 322, and the second reinforcing plate 324 is arranged perpendicular to an axis of the middle beam 10. The longitudinal beam 32 is of a hollow structure, and the second reinforcing plate 324 is arranged inside the hollow structure, so that a structural strength of the longitudinal beam 32 is improved, that is, a deformation resistance of the longitudinal beam 32 is stronger. The first protruding plate 211 and the second protruding plate 221 are respectively located on upper and lower sides of the first connecting part 41, and the first protruding plate 211 and the second protruding plate 221 are welded with the second upper cover plate 321 and the second lower cover plate 322 at the same time, so that the end beam 20 and the longitudinal beam 32 are indirectly connected as a whole, that is, part of the force on the end beam is transmitted to the first connecting part 41 through the first protruding plate 211 and the second protruding plate 221, such that a structural strength at a joint of the longitudinal beam 32 and the end beam 20 is improved, thereby preventing breakage at the joint of the end beam 20 and the longitudinal beam 32.

As shown in Figs. 7 to 9, in the present embodiment, the bolster beam 31 includes a third upper cover plate 311, a third lower cover plate 312, two third web plates 313 and a third reinforcing plate 314, the two third web plates 313 are arranged at intervals between the third upper cover plate 311 and the third lower cover plate 312, the third reinforcing plate 314 is welded among the third upper cover plate 311, the third lower cover plate 312 and the two third web plates 313, an end part of the third upper cover plate 311 away from the middle beam 10 is provided with a third protruding plate 3111, an end part of the third lower cover plate 312 away from the middle beam 10 is provided with a fourth protruding plate 3121, the third protruding plate 3111 is located above the second connecting part 42 and is connected with the second upper cover plate 321, the fourth protruding plate 3121 is located below the second connecting part 42 and is connected with the second lower cover plate 322, and the third reinforcing plate 314 is arranged parallel to the axis of the middle beam 10. The bolster beam 31 is of a hollow structure, and the third reinforcing plate 314 is welded inside the hollow structure, so that a structural strength of the bolster beam 31 is improved, and meanwhile a bearing capacity of the bolster beam 31 is improved. Similarly, the third protruding plate 3111 and the fourth protruding plate 3121 are respectively located on upper and lower sides of the second connecting part 42, and the third protruding plate 3111 and the fourth protruding plate 3121 are welded with the second upper cover plate 321 and the second lower cover plate 322 at the same time, so that the bolster beam 31 and the longitudinal beam 32 20 are indirectly connected as a whole, that is, part of a force on the bolster beam 31 is transmitted to the second connecting part 42 through the third protruding plate 3111 and the fourth protruding plate 3121, such that a structural strength at a joint of the longitudinal beam 32 and the bolster beam 31 is improved, thereby preventing breakage at the joint of the bolster beam 31 and the longitudinal beam 32.

As shown in Fig. 4, Fig. 7 and Fig. 10, in the present embodiment, a plurality of first reinforcing plates 24, a plurality of second reinforcing plates 324 and a plurality of third reinforcing plates 314 are provided, the plurality of first reinforcing plates 24 are arranged at intervals, the plurality of second reinforcing plates 324 are arranged at intervals, and the plurality of third reinforcing plates 314 are arranged at intervals. The plurality of first reinforcing plates 24 improve the structural strength of the end beam 20, the plurality of second reinforcing plates 324 improve the structural strength of the longitudinal beam 32, the plurality of third reinforcing plates 314 effectively improve the structural strength of the bolster beam 31, and due to arrangement of the plurality of first reinforcing plates 24, the plurality of second reinforcing plates 324 and the plurality of third reinforcing plates 314, a structural strength of the vehicle body assembly and a lightweight arrangement of the vehicle body assembly are both achieved. Specifically, three first reinforcing plates 24 are provided, and the three first reinforcing plates 24 are all parallel to the axis of the middle beam 10. Two second reinforcing plates 324 are provided, and the two second reinforcing plates 324 are arranged at intervals and are perpendicular to the axis of the middle beam 10. Three third reinforcing plates 314 are provided, and the three third reinforcing plates 314 are parallel to the axis of the middle beam 10. The first reinforcing plates 24 are arranged in such way so as to effectively disperse the vertical load of the end beam 20, and an arrangement direction of the second reinforcing plates 324 improves a deformation resistance of a side face of the vehicle body assembly one hand, and on the other hand, the second reinforcing plates 324 gradually disperse a force on the longitudinal beam 32. Similar effects are achieved an arrangement of the third reinforcing plates 314.

In order to further improve the structural strength of the bolster beam 31, a connecting plate 315 is arranged between two adjacent third reinforcing plates 314, and the connecting plate 315 is located at a middle of the third reinforcing plate 314 and is perpendicular to the third reinforcing plate 314. Of course, the connecting plate 315 can also be arranged between two adjacent first reinforcing plates 24, and/or, the connecting plate 315 can also be arranged between two adjacent second reinforcing plates 324.

As shown in Fig. 1 and Fig. 4, in the present embodiment, a thickness of the first end of the end beam 20 is greater than a thickness of the second end of the end beam 20, a thickness of the first end of the bolster beam 31 is greater than a thickness of the second end of the bolster beam 31, the thickness of the second end of the end beam 20 is greater than the thickness of the second end of the bolster beam 31, a thickness of the first end of the longitudinal beam 32 is equal to the thickness of the second end of the end beam 20, a thickness of the second end of the longitudinal beam 32 is equal to the thickness of the second end of the bolster beam 31, and the thickness of the first end of the longitudinal beam 32 is greater than the thickness of the second end of the longitudinal beam 32. The two end beams 20 at one end of the middle beam 10 are symmetrically arranged, the first end of the end beam 20 is connected with the middle beam 10, and the thickness of the first end of the end beam 20 is greater, such that a connection area between the end beam 20 and the middle beam 10 is increased, and a fixing effect by welding is improved. The first end of the bolster beam 31 is welded with the middle beam 10, and the thickness of the first end of the bolster beam 31 is greater than the thickness of the second end of the bolster beam 31, so that a contact area between the middle beam 10 and the bolster beam 31 is greater, and a fixing effect by welding is guaranteed. A main purpose of such an arrangement is to improve the bearing capacity of the vehicle body assembly and to achieve a lightweight design. Compared with the bolster beam 31, the end beam is subjected to a greater force, so a thickness of the end beam 20 is greater than a thickness of a corresponding position of the bolster beam 31.

As shown in Fig. 1 and Fig. 2, in the present embodiment, four end beams 20, four bolster beams 31 and four longitudinal beams 32 are provided, each end of the middle beam 10 is provided with two end beams 20, and two bolster beams 31 and two longitudinal beams 32 are symmetrically arranged with respect to the middle beam 10. By an above symmetrical arrangement manner, a balance of the overall structural is better.

As shown in Fig. 1 and Fig. 2, in the present embodiment, the vehicle body assembly further includes two cross beams 50 and a protective beam 60, the two cross beams 50 are symmetrically arranged with respect to the middle beam 10, a first end of each of the two cross beams 50 is welded with the middle beam 10, the cross beams 50 are arranged at a middle of the middle beam , and the protective beam 60 is arranged between the second end of the bolster beam 31 and a second end of the cross beam 50. The above cross beam 50 is to improve a structural strength of the middle beam 10, and the protective beam 60 prevents an operator from entering a bottom of the vehicle and causing a danger.

As shown in Fig. 1 and Fig. 2, in the present embodiment, the vehicle body assembly further includes a braking table 70, which is connected between the protective beam 60 and the middle beam 10. A brake is arranged on the braking table 70.

As shown in Fig. 1 and Fig. 2, in the present embodiment, the vehicle body assembly further includes a plurality of installing parts 80 and a hoisting part 90, the second end of each of the end beam 20 is provided with one installing part 80, the second end of each of the cross beam 50 is provided with two installing parts 80, the hoisting part 90 is arranged at the second end of the bolster beam 31, and the hoisting part 90 protrudes from the longitudinal beam 32. The installing parts 80 cooperate with a container, so that the container is stably placed on the vehicle body assembly. The hoisting part 90 protrudes from the longitudinal beam 32, so that when the vehicle body assembly is hoisted, it will not interfere with other structures.

An end part of the vehicle body assembly of the present embodiment forms a structure in a shape of a Chinese character" H ", one longitudinal beam 32 is arranged between the end beam 20 at the end part of the vehicle body assembly and the bolster beam 31, so as to transmit a vertical load at the end part of the vehicle body assembly to the bolster beam 31 through the longitudinal beam 32, thereby effectively improving the vertical bearing capacity of the vehicle body assembly. It should be noted that the vehicle body assembly of the present embodiment is provided with no impact seat. Therefore, the technical solution of the present embodiment solves a problem of fatigue cracks in the weld seams between an end plate and the casting impact seat, between the upper and lower cover plates of the end beam and the upper and lower cover plates of the middle beam, and between the upper and lower cover plates of the bolster beam and the upper and lower cover plates of the middle beam. Moreover, since the longitudinal beam 32 is added at the end part of the vehicle body assembly, a mass of the end part of the vehicle body assembly is increased, thereby increasing a moment of inertia of the end part of the vehicle body assembly relative to the lateral center of the vehicle body, thereby improving a working dynamic performance of the vehicle.

The longitudinal beam 32 is added between the end beam 20 and the bolster beam 31, which enables a part of the vertical load of the end beam 20 to be transmitted to the bolster beam 31 through the longitudinal beam 32, so that the end beam 20, the bolster beam 31 and a traction beam of the middle beam 10 bear the vertical load at the end part of the vehicle body assembly together, and a vertical rigidity of the end part of the vehicle body assembly is improved, therefore the vertical bearing capacity of the vehicle body assembly is improved. This structure reduces a stress on a joint between the end beam 20 and the middle beam 10, that is, reduces a stress on a weld seam at a joint between the end beam 20 and the impact seat, such that a problem of fatigue cracks at this position due to high stress is solved. At the same time, the longitudinal beam 32 shares a longitudinal load on the traction beam of the middle beam 10, so that the middle beam 10 bear a greater longitudinal load than an existing vehicle body structure, a transmission path of the longitudinal force is optimized, and use demands are met. The longitudinal beam 32 is of a double-web-plate box-shaped structure with a dysmorphism cross section. Compared with a single-web-plate structure with an I-shaped cross section structure, the longitudinal beam 32 not only meets requirements of a bearing surface of the vehicle container, as well as clearance requirements between the vehicle body structure and a vehicle bogie, but also meets requirements of transmitting greater vertical and longitudinal forces. By using the technical solution of the present embodiment, the casting impact seat can be eliminated from the middle beam 10 and replaced with a welded impact seat, and the reinforcing structure 11 is added at a lower part to improve a connection strength of this part.

It should be noted that the traction beam is a part of the middle beam 10, and the traction beam is the middle beam 10 that is located between the end beam 20 and the bolster beam 31.

According to another aspect of the present application, a vehicle is provided. The vehicle of the present embodiment includes a vehicle body assembly, and the vehicle body assembly is the above-mentioned vehicle body assembly. The above-mentioned vehicle body assembly has better structural strength and stronger bearing capacity of vertical load, so the vehicle having the above-mentioned vehicle body assembly also has the above-mentioned advantages.

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 modifications, equivalent replacements, improvements and the like, made within the spirit and principles of the present invention, shall all be included within the protection scope of the present invention.

Claims (15)

Claims

1. A vehicle body assembly, comprising:

a middle beam (10);

a plurality of end beams (20), which are respectively arranged on both sides of an end part of the middle beam (10) and are connected with the middle beam (10); and

a plurality of reinforcing beams (30), each of the plurality of reinforcing beams (30) being connected between the middle beam (10) and each of the plurality of end beams (20), and a frame structure being enclosed among the reinforcing beam (30), the middle beam (10) and the end beam (20), wherein,

each of the plurality of end beams (20) comprises a first upper cover plate (21), a first lower cover plate (22) and two first web plates (23), and the two first web plates (23) are arranged at intervals between the first upper cover plate (21) and the first lower cover plate (22), so that the end beam (20) forms a hollow structure.

2. The vehicle body assembly as claimed in claim 1, wherein each of the plurality of end beams (20) further comprises a plurality of first reinforcing plates (24), the first reinforcing plates (24) are arranged among the first upper cover plate (21), the first lower cover plate (22) and the two first web plates (23), four sides of each of the plurality of first reinforcing plate (24) are respectively welded with the first upper cover plate (21), the first lower cover plate (22) and the two first web plates (23), and a distance between the first reinforcing plate (24) and a first end of the end beam (20) is greater than a distance between the first reinforcing plate (24) and a second end of the end beam (20).

3. The vehicle body assembly as claimed in claim 2, wherein each of the plurality of reinforcing beam (30) comprises:

a bolster beam (31), which is spaced apart from the end beam (20) and is connected with the middle beam (10); and

a longitudinal beam (32), which is connected between the end beam (20) and the bolster beam (31), wherein

the first end of the end beam (20) is connected with the middle beam (10), a first end of the bolster beam (31) is connected with the middle beam (10), the second end of the end beam (20) is connected with a first end of the longitudinal beam (32), a second end of the bolster beam (31) is connected with a second end of the longitudinal beam (32), and a reinforcing structure (11) is arranged on the middle beam (10).

4. The vehicle body assembly as claimed in claim 3, wherein the longitudinal beam (32) comprises a second upper cover plate (321), a second lower cover plate (322), two second web plates (323) and a second reinforcing plate (324), the two second web plates (323) are arranged at intervals between the second upper cover plate (321) and the second lower cover plate (322), the second reinforcing plate (324) is welded among the second upper cover plate (321), the second lower cover plate (322) and the two second web plates (323), two ends of the two second web plates (323) protrude from the second upper cover plate (321) and the second lower cover plate (322), so as to form a first connecting part (41) and a second connecting part (42), an end part of the first upper cover plate (21) away from the middle beam (10) is provided with a first protruding plate (211), an end part of the first lower cover plate (22) away from the middle beam (10) is provided with a second protruding plate (221), the first protruding plate (211) is located above the first connecting part (41) and is connected with the second upper cover plate (321), the second protruding plate (221) is located below the first connecting part (41) and is connected with the second lower cover plate (322), and the second reinforcing plate (324) is arranged perpendicular to an axis of the middle beam (10).

5. The vehicle body assembly as claimed in claim 4, wherein the bolster beam (31) comprises a third upper cover plate (311), a third lower cover plate (312), two third web plates (313) and a third reinforcing plate (314), the two third web plates (313) are arranged at intervals between the third upper cover plate (311) and the third lower cover plate (312), the third reinforcing plate (314) is welded among the third upper cover plate (311), the third lower cover plate (312) and the two third web plates (313), an end part of thethird uppercoverplate (311) awayfrom the middle beam (10) is provided with a third protruding plate (3111), an end part of the third lower cover plate (312) away from the middle beam (10) is provided with a fourth protruding plate (3121), the third protruding plate (3111) is located above the second connecting part (42) and is connected with the second upper cover plate (321), the fourth protruding plate (3121) is located below the second connecting part (42) and is connected with the second lower cover plate (322), and the third reinforcing plate (314) is arranged parallel to the axis of the middle beam (10).

6. The vehicle body assembly as claimed in claim 5, wherein the plurality of first reinforcing plates (24), a plurality of second reinforcing plates (324) and a plurality of third reinforcing plates (314) are provided, the plurality of first reinforcing plates (24) are arranged at intervals, the plurality of second reinforcing plates (324) are arranged at intervals, and the plurality of third reinforcing plates (314) are arranged at intervals.

7. The vehicle body assembly as claimed in claim 6, wherein the vehicle body assembly further comprises a connecting plate (315), the connecting plate (315) is arranged between two adjacent first reinforcing plates (24), and/or, the connecting plate (315) is arranged between two adjacent second reinforcing plates (324), and/or, the connecting plate (315) is arranged between two adjacent third reinforcing plates (314).

8. The vehicle body assembly as claimed in claim 3, wherein a thickness of the first end of the end beam (20) is greater than a thickness of the second end of the end beam (20).

9. The vehicle body assembly as claimed in claim 3, wherein a thickness of the first end of the bolster beam (31) is greater than a thickness of the second end of the bolster beam (31), and a thickness of the second end of the end beam (20) is greater than the thickness of the second end of the bolster beam (31).

10. The vehicle body assembly as claimed in claim 3, wherein a thickness of the first end of the longitudinal beam (32) is equal to a thickness of the second end of the end beam (20), a thickness of the second end of the longitudinal beam (32) is equal to a thickness of the second end of the bolster beam (31), and the thickness of the first end of the longitudinal beam (32) is greater than the thickness of the second end of the longitudinal beam (32).

11. The vehicle body assembly as claimed in claim 3, wherein four end beams (20), four bolster beams (31) and four longitudinal beams (32) are provided, each end of the middle beam (10) is provided with two end beams (20), and two bolster beams (31) and two longitudinal beams (32) are symmetrically arranged with respect to the middle beam (10).

12. The vehicle body assembly as claimed in claim 3, wherein the vehicle body assembly further comprises two cross beams (50) and a protective beam (60), the two cross beams (50) are symmetrically arranged with respect to the middle beam (10), a first end of each of the two cross beams (50) is welded with the middle beam (10), the cross beams (50) are arranged at a middle of the middle beam (10), and the protective beam (60) is arranged between the second end of the bolster beam (31) and a second end of the cross beam (50).

13. The vehicle body assembly as claimed in claim 12, wherein the vehicle body assembly further comprises a braking table (70), which is connected between the protective beam (60) and the middle beam (10).

14. The vehicle body assembly as claimed in claim 12, wherein the vehicle body assembly further comprises a plurality of installing parts (80) and a hoisting part (90), the second end of each of the end beam (20) is provided with one installing part (80), the second end of each of the cross beam (50) is provided with two installing parts (80), the hoisting part (90) is arranged at the second end of the bolster beam (31), and the hoisting part (90) protrudes from the longitudinal beam (32).

15. A vehicle, comprising a vehicle body assembly, wherein the vehicle body assembly is the vehicle body assembly as claimed in any one of claims 1-14.

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