CN210101633U - Railway container flat car with low bearing surface - Google Patents

Abstract

The utility model discloses a low loading end railway container flatcar, including the chassis, the bogie, arresting gear and coupling buffer, the chassis includes well roof beam, the end beam, the curb girder, the both ends of curb girder link to each other with the tip of end beam respectively, the chassis is still including a pair of sleeper beam and the interval distribution a plurality of crossbeams between a pair of sleeper beam of installing on the up end of well roof beam, the outer end of sleeper beam and crossbeam all with curb girder looks fixed connection, be connected with the same direction roof beam between each sleeper beam and its adjacent end beam, the well roof beam is formed by the tow beam of both sides and middle H shaped steel assembly welding, the tow beam is variable cross-section assembly welding structure, the tow beam is by the roof, web and bottom plate assembly welding form, still install the heart dish on the bottom surface of bottom plate, the thickness of bottom plate is not less than 20mm, install fixed box lock on four angles of chassis respectively. On the premise of ensuring the strength and rigidity of the vehicle body, the height of the bearing surface of the vehicle body is reduced to 838mm away from the rail surface, and the requirement of the vehicle clearance is met.

Description

Railway container flat car with low bearing surface

Technical Field

The utility model relates to a railway freight car field, in particular to low loading end railway container flatcar.

Background

The existing domestic flatcar has the advantages that the upper planes of the traction beam, the middle beam and the side beam which are longitudinally supported by the underframe are on the same plane, the height of the supporting surface from the rail surface is above 1050mm, and in some countries of south Asia and south-east Asia, the height of the railway vehicle limit is very low, which means that the supporting surface of the corresponding container flatcar is also very low, compared with the domestic container flatcar, the supporting surface of the container flatcar is about 300mm lower, the design difficulty is large, how to reduce the height of the supporting surface of the flatcar, and the technical personnel in the field need to solve the problem urgently.

Disclosure of Invention

The utility model aims at overcoming prior art's not enough, providing a low loading end railway container flatcar, its automobile body intensity, rigidity are good, and the loading end height can fall to apart from rail surface 838mm, have satisfied the requirement of vehicle limiting limit.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a railway container flat wagon with a low bearing surface comprises an underframe, a bogie, a braking device and a coupler buffering device, wherein the underframe comprises a transversely arranged middle beam, end beams connected to two ends of the middle beam in the length direction, and side beams positioned on two sides of the middle beam in the width direction, two ends of each side beam are respectively connected with the end parts of the end beams, the underframe further comprises a pair of sleeper beams arranged on the upper end surface of the middle beam and a plurality of cross beams distributed between the pair of sleeper beams at intervals, the outer ends of the sleeper beams and the cross beams are fixedly connected with the side beams, a longitudinal beam is connected between each sleeper beam and the adjacent end beam, the middle beam is formed by assembling and welding traction beams on two sides and H-shaped steel in the middle, the traction beams are of variable cross-section assembling and welding structures, the traction beams are formed by assembling and welding a top plate, a web plate and a bottom plate, and a core plate is further arranged on the bottom surface of the bottom plate, the thickness of the bottom plate is not less than 20mm, and four corners of the bottom plate are respectively provided with a fixed box lock.

Preferably, the end beams at two ends of the center beam and the corresponding traction beams are prefabricated with upwarping, and the middle part of the center beam is prefabricated with downwarping.

Preferably, the side beam is made of 40B hot rolled steel.

Preferably, the butt joint of the traction beam and the H-shaped steel is welded in a staggered mode.

Preferably, an upper cover plate is welded on the upper surfaces of the traction beam and the H-shaped steel.

Preferably, the height of the web at the core plate is minimal.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a low loading end railway container flatcar is used for transporting standard 40 chi containers specially, and the centre sill that its used has adopted the draw beam and the H shaped steel assembly welding of variable cross section assembly welding structure to form, has both reduced the cross-sectional height of centre sill heart dish department, has simplified the manufacturing process of automobile body again simultaneously, has practiced thrift manufacturing cost, can make the container loading end of whole car apart from the track face highly than existing flatcar low many.

Drawings

Fig. 1 is a front view of a railway container flat car with a low bearing surface according to the present invention;

fig. 2 is a schematic view of the underframe of the railway container flat car with low bearing surface according to the utility model;

fig. 3 is a schematic view of a center sill of a railway container flat car with a low bearing surface according to the utility model;

figure 4 is a schematic view of a draft sill in a railway container flat car with a low load surface according to the present invention;

fig. 5 is a rear view of fig. 4.

Wherein: 1. a chassis; 2. a bogie; 3. a braking device; 4. a coupler buffer device; 11. a middle beam; 12. an end beam; 13. a side beam; 14. a bolster; 15. a cross beam; 16. a longitudinal beam 17; fixing a box lock; 21. a trailing beam; 22. h-shaped steel; 23. an upper cover plate; 31. a top plate; 32. a web; 33. a base plate; 34. a core plate.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.

A railway container flat wagon with low bearing surface is used for loading standard 40-size containers and comprises an underframe 1, a bogie 2, a braking device 3 and a coupler buffer device 4, and is shown in figure 1. The underframe 1 comprises a transversely arranged center sill 11, end sills 12 connected to two ends of the center sill 11 in the length direction, and side sills 13 positioned on two sides of the center sill 11 in the width direction, wherein two ends of each side sill 13 are respectively connected with the end parts of the end sills 12, the underframe 1 further comprises a pair of sleeper sills 14 arranged on the upper end surface of the center sill 11 and a plurality of cross beams 15 distributed between the pair of sleeper sills 14 at intervals, the outer ends of the sleeper sills 14 and the cross beams 15 are fixedly connected with the side sills 13, and a longitudinal beam 16 is connected between each sleeper beam 14 and the adjacent end sill 12, as shown in fig. 2. The center sill 11 is formed by assembling and welding the towing beams 21 at two sides and the H-shaped steel 22 in the middle, as shown in fig. 3, the towing beams 21 are of a variable cross section assembling and welding structure, the towing beams 21 are formed by assembling and welding a top plate 31, a web plate 32 and a bottom plate 33, as shown in fig. 4 and 5, a core plate 34 is further installed on the bottom surface of the bottom plate 33, as shown in fig. 5, the thickness of the bottom plate 33 is not less than 20mm, and the four corners of the underframe 1 are respectively provided with the fixed box locks 17.

The draft sill 21 in the center sill 11 adopts a variable cross-section assembly welding structure and is formed by assembling and welding a top plate 31, a web 32 and a bottom plate 33, wherein the web 32 has the minimum height at a core disc 34, so that the height of a bearing surface is ensured, but from the analysis of a stress angle, the larger the height of the web 32 at the core disc 34 is, the better the stress condition of a vehicle body is, in order to improve the cross-section height of the web 32 at the core disc 34 as much as possible, the draft sill 21 is not provided with a core disc backing plate, but the thickness of the bottom plate 33 is increased to more than 20mm, so that the cross-section height of the web 32 at the core disc 34 is improved, and the requirement of the installation position of the core disc 34 on the flatness.

Here, in the center sill 11, the butt joint between the draft sill 21 and the H-section steel 22 is welded in a staggered manner. By staggering the butt joint positions of the welding head and the welding head respectively in the welding process, the stress concentration of the same section can be reduced, and the welding seam is prevented from cracking. The middle part of the middle beam 11 can directly adopt the H-shaped steel 22 of 450 multiplied by 200 multiplied by 9 multiplied by 14, and the two ends are processed into the shape matched with the traction beam 21, thereby not only reducing the manufacturing difficulty, but also fully utilizing the section bar and improving the utilization rate of the H-shaped steel of 12m to the maximum.

Here, the end beams 12 at both ends of the center sill 11 and the corresponding draft sill 21 are prefabricated with upwarp therebetween, and the middle part of the center sill 11 is prefabricated with downwarp. The deformation of the middle beam 11 and the side beams 13 when the vehicle is heavily loaded is resisted through the prefabricated deflection, and the heavy load performance of the vehicle is ensured.

The side beam 13 is made of 40B hot rolled steel, the 40B hot rolled steel has larger inertia moment, and the side beam 13 is made of the section to ensure that the vehicle has larger vertical rigidity.

Here, an upper cover plate 23 is welded to the upper surfaces of the draft sill 21 and the H-section steel 22, and as shown in fig. 3, the bending resistance of the center sill 11 is improved by providing the upper cover plate 23.

In this example, the coupler buffer device 4 employs a coupler buffer system composed of a domestic 13B coupler and an MT-3 buffer, and employs a knoll brake system.

The utility model discloses a low loading end railway container flatcar, wherein roof beam 11 has adopted the draw beam 21 and the H shaped steel 22 assembly welding of variable cross section assembly welding structure to form, and this draw beam 21 has solved and has adopted the heart to coil the backing plate and improve the cross-sectional height of web 32 in heart 34 department among the prior art through the thickness that increases bottom plate 33, guaranteeing automobile body intensity, under the prerequisite of rigidity and manufacturing manufacturability, highly fall to apart from rail face 838mm with the automobile body loading end, the requirement of vehicle boundary limit has been satisfied.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (6)

1. A railway container flat wagon with a low bearing surface comprises an underframe, a bogie, a braking device and a coupler buffering device, wherein the underframe comprises a transversely arranged middle beam, end beams connected to two ends of the middle beam in the length direction, side beams positioned on two sides of the middle beam in the width direction, two ends of each side beam are respectively connected with the end parts of the end beams, the underframe further comprises a pair of sleeper beams arranged on the upper end surface of the middle beam and a plurality of cross beams distributed between the pair of sleeper beams at intervals, the outer ends of the sleeper beams and the cross beams are fixedly connected with the side beams, a longitudinal beam is connected between each sleeper beam and the adjacent end beam, the railway container flat wagon is characterized in that the middle beam is formed by assembling and welding two traction beams on two sides and H-shaped steel in the middle, the traction beams are of a variable cross section assembling and welding structure, and the traction beams are formed by assembling and welding a top plate, a web plate and a bottom plate, the bottom surface of the bottom plate is further provided with a center plate, the thickness of the bottom plate is not less than 20mm, and four corners of the bottom frame are respectively provided with a fixed box lock.

2. The railway container flat wagon with low bearing surface as claimed in claim 1, wherein the end beams at the two ends of the center sill are prefabricated with the corresponding draft sill to be upwarped, and the middle part of the center sill is prefabricated with the downwarped.

3. The low load bearing railway container flat car of claim 1, wherein said side beams are 40B hot rolled steel.

4. The railway container flat car with low bearing surface as claimed in claim 1, wherein the butt joint of the draft sill and the H-beam is welded in a staggered manner.

5. The railway container flat car with low bearing surface as claimed in claim 1, wherein an upper cover plate is welded on the upper surfaces of the towing beam and the H-shaped steel.

6. The low load bearing railway container flat car of claim 1, wherein the height of the web at the center pan is at a minimum.

Images