Pillow beam assembly and railway vehicle

Abstract

This invention provides a sleeper beam assembly and a rail vehicle, belonging to the field of rail vehicle technology. It includes an upper and a lower assembly. The upper assembly is fixedly mounted on the car body. Multiple limiting holes are spaced apart inside the upper assembly. The lower assembly is fixedly mounted on the bogie. A limiting insert, corresponding to each of the limiting holes, is provided on the lower assembly. The limiting insert is inserted into the corresponding limiting hole along the vertical direction of the car body. When changing rails and bogies, this invention only requires lifting the car body; the upper assembly separates from the lower assembly along with the car body to detach from the original bogie. After replacing with a suitable bogie, the upper assembly is aligned with the lower assembly, and the limiting insert is inserted into the limiting hole to complete the assembly. No bolts need to be removed during rail replacement, improving the efficiency of rail replacement operations and meeting the need for rapid bogie replacement during rail changes.

Description

Technical Field

[0001] This invention belongs to the field of rail vehicle technology, and more specifically, relates to a sleeper beam assembly and a rail vehicle. Background Technology

[0002] Different countries and regions use different track gauges for their railways. A gauge larger than the standard 1435mm is considered broad gauge, and smaller is narrow gauge. Due to these different track standards, cross-border interoperability requires replacing the bogies on railway vehicles.

[0003] The bogie is connected to the car body via a bolster beam structure. In the prior art, the bolster beam is generally fixed to the car body underframe, and the bolster beam is fixed to the bogie by multiple bolts. When changing rails and replacing bogies, all bolts need to be removed first, then the car body is lifted, the original bogie is removed, a suitable bogie is replaced, and finally the bolts are tightened. The above replacement process is complicated and cannot be done quickly. Summary of the Invention

[0004] The purpose of this invention is to provide a sleeper beam assembly and a rail vehicle, aiming to solve the technical problem of complex operation procedures for changing rails and bogies in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a sleeper beam assembly, comprising:

[0006] The upper split body is used for fixed installation on the vehicle body; the upper split body has multiple limiting holes spaced apart inside; and

[0007] The lower split is used to be fixedly mounted on the bogie; the lower split is provided with a limiting insert corresponding to one of the multiple limiting holes;

[0008] The limiting insert is inserted into the corresponding limiting hole along the vertical direction of the vehicle body.

[0009] In one possible implementation, the upper body is a box structure; the top surface of the upper body is parallel to the bottom surface of the vehicle body; and in the left-right direction of the vehicle body, the middle part of the upper body protrudes downward.

[0010] In some embodiments, the lower segment is a box structure; the top and bottom surfaces of the lower segment are respectively arranged parallel to the bottom surface of the upper segment.

[0011] In one possible implementation, in the left-right direction of the vehicle body, the two ends of the upper split are respectively provided with connecting beams, which extend along the front-rear direction of the vehicle body; the connecting beams are used to be fixedly connected to the underframe side beams of the vehicle body.

[0012] In one possible implementation, the upper split body has multiple fixed ring platforms inside, and the multiple fixed ring platforms are distributed at intervals along the left and right directions of the vehicle body; the bottom wall of the upper split body also has multiple insertion holes.

[0013] Each of the fixed ring platforms corresponds axially to one of the insertion holes; the limiting hole includes the center hole of the fixed ring platform and the corresponding insertion hole.

[0014] In one possible implementation, the upper body includes:

[0015] Top plate;

[0016] The upper base plate is located below the upper top plate;

[0017] Two upper side panels are respectively disposed between the upper top plate and the upper bottom plate, and are spaced apart along the front-rear direction of the vehicle body; and

[0018] Multiple upper uprights are respectively disposed between the upper top plate and the upper bottom plate, and are spaced apart along the left and right directions of the vehicle body.

[0019] In some embodiments, a support column is provided at the center of the upper split in the left-right direction of the vehicle body, and the upper and lower end faces of the support column are respectively connected to the upper top plate and the upper bottom plate.

[0020] In one possible implementation, the lower body includes:

[0021] Lower top plate;

[0022] The lower base plate is located below the lower top plate;

[0023] Two lower side panels are respectively disposed between the lower top plate and the lower bottom plate, and are spaced apart along the front-rear direction of the vehicle body; and

[0024] Multiple lower uprights are respectively disposed between the lower top plate and the lower bottom plate, and are spaced apart along the left and right direction of the vehicle body.

[0025] In one possible implementation, the limiting insert is provided with a mounting hole for connecting to the bogie.

[0026] The bolster assembly of the present invention is divided into an upper part and a lower part. The upper part is used to fix it to the car body, and the lower part is used to fix it to the bogie. The upper part and the lower part are connected and transmit traction force by a limiting insert inserted into a limiting hole. When changing rails or bogies, it is only necessary to lift the car body, and the upper part can be separated from the lower part along with the car body to detach from the original bogie. After changing to a suitable bogie, the upper part is aligned with the lower part, and the limiting insert is inserted into the limiting hole to complete the assembly.

[0027] The beneficial effects of the sleeper beam assembly provided by the present invention are as follows: compared with the prior art, there is no need to disassemble the bolts, which improves the efficiency of rail changing operation and can meet the need for quick replacement of bogies when changing rails.

[0028] The present invention also provides a rail vehicle, including a car body, a bogie, and the aforementioned sleeper-beam assembly.

[0029] The rail vehicle provided by this invention, due to the adoption of the above-mentioned sleeper-beam assembly, allows for quick assembly and disassembly of the car body and bogies, and enables rapid bogie replacement during rail changes.

[0030] The rail vehicle provided by this invention is suitable for conventional speed trains. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the sleeper beam assembly provided in an embodiment of the present invention;

[0033] Figure 2 A top view of the sleeper beam assembly provided in an embodiment of the present invention (the connecting beam and the top plate are not shown in the figure);

[0034] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0035] Figure 4 This is a schematic diagram of the upper split of the bolster beam assembly provided in an embodiment of the present invention;

[0036] Figure 5 A schematic cross-sectional view of the upper split of the bolster beam assembly provided in an embodiment of the present invention;

[0037] Figure 6 This is a schematic diagram of the lower component of the bolster beam assembly provided in an embodiment of the present invention;

[0038] Figure 7 This is a schematic cross-sectional view of the lower component of the bolster beam assembly provided in an embodiment of the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of a rail vehicle provided in an embodiment of the present invention;

[0040] Figure 9 for Figure 8A schematic diagram of the cross-sectional structure along line BB.

[0041] In the diagram: 1. Upper split; 11. Upper top plate; 12. Upper bottom plate; 13. Upper side plate; 14. Upper upright plate; 15. Fixing ring platform; 16. Support column; 17. Reinforcing rib; 18. Limiting hole; 181. Center hole; 182. Insertion hole; 2. Lower split; 21. Lower top plate; 22. Lower bottom plate; 23. Lower side plate; 24. Lower upright plate; 25. Limiting insertion platform; 251. Mounting hole; 252. Embedding part; 253. Plug; 3. Connecting beam; 4. Car body; 41. Underframe side beam; 5. Bogie. Detailed Implementation

[0042] To make the technical problems, solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] Please refer to the following: Figures 1 to 3 The bolster beam assembly provided by the present invention will now be described. The bolster beam assembly includes an upper part 1 and a lower part 2. The upper part 1 is used to be fixedly mounted on the vehicle body 4; the upper part 1 has a plurality of limiting holes 18 spaced apart inside; the lower part 2 is used to be fixedly mounted on the bogie 5; the lower part 2 has limiting inserts 25 corresponding one-to-one with the plurality of limiting holes 18; wherein, the limiting inserts 25 are inserted and limited in the corresponding limiting holes 18 along the vertical direction of the vehicle body.

[0044] The bolster beam assembly extends along the left and right direction of the vehicle body. In the left and right direction of the vehicle body, the two ends of the upper part 1 are fixedly connected to the underframe of the vehicle body 4 respectively; the bogie 5 is connected to the lower part 2 by bolts and / or center pins.

[0045] The bolster assembly provided by the present invention is divided into an upper part 1 and a lower part 2. The upper part 1 is installed on the underframe of the car body 4, and the same lower part 2 is installed on the bogies 5 used on different tracks. The lower part 2 and the upper part 1 are connected by a limiting insert 25 inserted into a limiting hole 18. Since the limiting insert 25 is inserted into the limiting hole 18 along the vertical direction of the car body, the two are also used to transmit traction force.

[0046] It should be noted that since the traction force between the car body 4 and the bogie 5 is transmitted only by the limiting insert 25 inserted into the limiting hole 18, the bolster assembly provided in this embodiment is only suitable for conventional speed trains.

[0047] When replacing the bogie 5 on a rail vehicle, since the upper part 1 and the lower part 2 are only connected by the limiting insert 25 and the limiting hole 18, it is only necessary to lift the car body 4 upwards, and the upper part 1 can separate from the lower part 2 along with the car body 4, so that the car body 4 can be separated from the original bogie 5; after replacing the suitable bogie 5, the upper part 1 is aligned with the lower part 2, and the limiting insert 25 is inserted into the limiting hole 18 to complete the assembly.

[0048] Compared with the prior art, the sleeper beam assembly provided by the present invention does not require bolt removal, which improves the efficiency of rail changing operation and can meet the requirement of quick replacement of bogie 5 during rail changing.

[0049] In some embodiments, the upper body 1 can be adopted as follows: Figure 4 and Figure 5 The structure shown is described in the following document. Figure 4 and Figure 5 The upper body 1 is a box structure; the top surface of the upper body 1 is parallel to the bottom surface of the vehicle body 4; in the left and right direction of the vehicle body, the middle part of the upper body 1 protrudes downward.

[0050] The upper part 1 has a box structure, meaning that it has a cavity. The box structure can reduce the weight of the upper part 1, which meets the design requirements for lightweighting.

[0051] The middle part of the upper segment 1 protrudes downwards. Specifically, the middle part of the upper segment 1 has an isosceles trapezoidal structure, with the short side of the isosceles trapezoid protruding downwards. The waist-shaped side plate of the isosceles trapezoidal structure is parallel to the front-rear direction of the vehicle body (i.e., inclined relative to the left-right direction of the vehicle body). On the one hand, the downward protruding part can increase the contact area with the lower segment 2 in the left-right direction of the vehicle body, forming a limit along the left-right direction of the vehicle body; on the other hand, the downward protruding part can also increase the overall support strength of the upper segment 1.

[0052] It should be noted that the top plate of the upper split 1 can be the floor of the vehicle body 4. With the help of the floor, the structure of the upper split 1 can be further simplified; it can also be set below the floor and parallel to the floor.

[0053] In some embodiments, the lower segment 2 can be adopted as follows: Figure 6 and Figure 7 The structure shown is described in the following document. Figure 6 and Figure 7 The lower part 2 is a box structure; the top and bottom surfaces of the lower part 2 are set parallel to the bottom surface of the upper part 1.

[0054] The lower section 2 has a box structure, meaning it has a cavity. The box structure reduces the weight of the lower section 2, meeting the requirements for lightweight design.

[0055] The top surface of the lower split 2 is parallel to the bottom surface of the upper split 1. The vertical distance from each point on the top surface of the lower split 2 to the bottom surface of the upper split 1 is equal. The above arrangement facilitates the docking of the lower split 2 and the upper split 1, and enables the upper split 1 and the lower split 2 to be limited in the left and right directions of the vehicle body, thereby facilitating the insertion operation of the limiting insertion platform 25.

[0056] In addition, the bottom surface of the lower part 2 is parallel to the bottom surface of the upper part 1. That is to say, the height of each part of the lower part 2 is roughly the same. Since the lower part 2 is set on the bogie 5, it does not need to support the car body 4. The above arrangement can simplify the structure of the lower part 2 and reduce the area occupied. Moreover, the middle part of the lower part 2 also protrudes downward, which also facilitates the assembly with the central rotation structure of the bogie 5 frame.

[0057] In some embodiments, the upper body 1 and the vehicle body 4 may also be connected by, for example, Figure 1 and Figure 9 The structure shown is described in the following document. Figure 1 and Figure 9 In the left-right direction of the vehicle body, the two ends of the upper split 1 are respectively provided with connecting beams 3, which extend along the front-rear direction of the vehicle body; the connecting beams 3 are used to fix and connect with the underframe side beams 41 of the vehicle body 4.

[0058] Specifically, the connecting beam 3 is a C-shaped steel, and the base frame side beam 41 is also a C-shaped steel. The opening of the connecting beam 3 is opposite to the opening of the base frame side beam 41, and the connecting beam 3 and the base frame side beam 41 are welded together to form a rectangular cavity structure.

[0059] The upper part 1 is connected to the underframe side beam 41 by means of the connecting beam 3. On the one hand, it can increase the fixed area between the upper part 1 and the vehicle body 4 and improve the support stability of the upper part 1. On the other hand, the connecting beam 3 and the underframe side beam 41 form a rectangular cavity structure, which facilitates the welding operation of the connecting beam 3 and thus facilitates the assembly of the upper part 1.

[0060] Preferably, the top surface of the connecting beam 3 is welded and fixed to the top surface of the upper part 1. The bottom surface of the connecting beam 3 abuts against the top surface of the lower part 2.

[0061] In some embodiments, the upper body 1 described above can also be as follows: Figure 5 The structure shown is described in the following document. Figure 5 The upper body 1 has multiple fixed ring platforms 15 inside, which are distributed at intervals along the left and right directions of the vehicle body; the bottom wall of the upper body 1 also has multiple insertion holes 182; each fixed ring platform 15 is axially corresponding to one of the insertion holes 182; the limiting hole 18 includes the center hole 181 of the fixed ring platform 15 and the corresponding insertion hole 182.

[0062] The fixed ring platform 15 is inserted and connected to the limiting insertion platform 25. The center hole 181 of the fixed ring platform 15 forms the limiting hole 18. Without increasing the bottom wall thickness of the upper split body 1, the height of the limiting hole 18 can be increased, that is, the insertion height of the limiting insertion platform 25 and the limiting hole 18 can be increased, thereby ensuring the stability of the upper split body 1 and the lower split body 2 after docking.

[0063] It should be noted that the number of insertion holes 182 in this embodiment may be greater than the number of fixing rings 15. For insertion holes 182 that are mated with fixing rings 15, the limiting hole 18 is composed of a center hole 181 and an insertion hole 182. For insertion holes 182 that are not mated with fixing rings 15, the limiting hole 18 is the insertion hole 182.

[0064] Preferably, in this embodiment, there are two fixing rings 15, which are located inside the upper part 1 near both ends. Each fixing ring 15 is provided with a plug hole 182. In addition, a plug hole 182 is also provided in the center of the bottom wall of the upper part 1, and a limiting plug 25 is inserted into the plug hole 182.

[0065] In some embodiments, the upper body 1 described above can also be as follows: Figure 4 and Figure 5 The structure shown is described in the following document. Figure 4 and Figure 5 The upper body 1 includes an upper roof plate 11, an upper bottom plate 12, two upper side plates 13, and multiple upper upright plates 14. The upper bottom plate 12 is located below the upper roof plate 11; the two upper side plates 13 are respectively disposed between the upper roof plate 11 and the upper bottom plate 12, and are spaced apart along the front-rear direction of the vehicle body; the multiple upper upright plates 14 are respectively disposed between the upper roof plate 11 and the upper bottom plate 12, and are spaced apart along the left-right direction of the vehicle body.

[0066] Both the upper roof plate 11 and the upper floor plate 12 are perpendicular to the vertical direction of the vehicle body. It should be noted that the upper roof plate 11 can also be the floor of the vehicle body 4; that is, the two upper side plates 13 and multiple upper upright plates 14 can be welded and fixed to the floor of the vehicle body 4. The center of the upper floor plate 12 protrudes downwards, and the upper floor plate 12 has two inclined portions arranged along the left-right direction of the vehicle body. The fixing ring platform 15 is welded and fixed to the upper floor plate 12.

[0067] It should be noted that, in the left-right direction of the vehicle body, the two ends of the upper roof plate 11 extend outward relative to the two ends of the upper bottom plate 12, and the extended parts are used to weld and fix to the top surface of the connecting beam 3.

[0068] Both upper side panels 13 are perpendicular to the front-rear direction of the vehicle body, and the two upper side panels 13, together with the upper bottom panel 12 and the upper top panel 11, form a cavity, making the upper split 1 a box structure. Multiple upper upright panels 14 are perpendicular to the left-right direction of the vehicle body, and the upper upright panels 14 are supported in the inner cavity of the upper split 1 to increase the strength of the upper split 1.

[0069] Please see Figure 2 , Figure 3 and Figure 5 Based on the above implementation method, in the left-right direction of the vehicle body, the upper split 1 is provided with a support column 16 at its center, and the upper and lower end faces of the support column 16 are respectively connected to the upper top plate 11 and the upper bottom plate 12.

[0070] The support column 16 has a cylindrical structure. An insertion hole 182 is provided at the location of the upper base plate 12 where the support column 16 is positioned. Multiple sets of reinforcing ribs 17 are also provided around the outer periphery of the support column 16. The upper and lower end faces of the reinforcing ribs 17 are respectively connected to the upper top plate 11 and the upper base plate 12. The support column 16 and the multiple sets of reinforcing ribs 17 are used to increase the support strength of the central part of the upper segment 1.

[0071] In some embodiments, the lower segment 2 may also adopt the following: Figure 6 and Figure 7 The structure shown is described in the following document. Figure 6 and Figure 7 The lower sub-body 2 includes a lower top plate 21, a lower bottom plate 22, two lower side plates 23, and multiple lower upright plates 24. The lower bottom plate 22 is located below the lower top plate 21; the two lower side plates 23 are respectively disposed between the lower top plate 21 and the lower bottom plate 22, and are spaced apart along the front-rear direction of the vehicle body; the multiple lower upright plates 24 are respectively disposed between the lower top plate 21 and the lower bottom plate 22, and are spaced apart along the left-right direction of the vehicle body.

[0072] Both the lower top plate 21 and the lower bottom plate 22 are perpendicular to the vertical direction of the vehicle body. Furthermore, the center of the lower top plate 21 and the lower bottom plate 22 protrudes downward, and each of the lower top plate 21 and the lower bottom plate 22 has two inclined portions that are inclined along the left and right direction of the vehicle body. The limiting insert 25 is welded and fixed to the lower bottom plate 22, and the top of the limiting insert 25 extends upward through the lower top plate 21.

[0073] It should be noted that if the height of the connecting beam 3 and the base frame side beam 41 is the same as the height of the end of the upper part 1, that is, the connecting beam 3 can be fitted into the end of the upper part 1, then the lower end face of the connecting beam 3 is supported on the outer surface of the lower top plate 21. If the height of the connecting beam 3 and the base frame side beam 41 is greater than the height of the end of the upper part 1, then the end face of the lower top plate 21 and the end face of the upper base plate 12 are aligned, and the end face of the lower top plate 21 is welded to the outer side of the connecting beam 3; in addition, clearance openings should also be provided at the ends of the two lower side plates 23 to allow the connecting beam 3 to pass.

[0074] Both lower side panels 23 are perpendicular to the front-rear direction of the vehicle body. The two lower side panels 23, together with the lower bottom panel 22 and the lower top panel 21, form a cavity, making the lower sub-body 2 a box structure. Multiple lower upright panels 24 are perpendicular to the left-right direction of the vehicle body. The lower upright panels 24 are supported in the inner cavity of the lower sub-body 2 to increase the strength of the lower sub-body 2.

[0075] In some embodiments, the aforementioned limiting stage 25 may also employ, for example, Figure 7 The structure shown is described in the following document. Figure 7 The limiting insertion platform 25 includes an insert portion 252 and a plug 253. The insert portion 252 is inserted into the lower split body 2, and the top surface of the insert portion 252 abuts against the inner surface of the lower top plate 21. The bottom surface of the insert portion 252 is welded and fixed to the inner surface of the lower bottom plate 22. That is to say, the insert portion 252 is limited between the lower top plate 21 and the lower bottom plate 22.

[0076] The plug 253 is formed on the top surface of the insert portion 252 and extends upward from the lower top plate 21, and is inserted into the limiting hole 18.

[0077] The bottom surface of the mounting part 252 is also provided with a mounting hole 251 for connecting with the bogie 5. Specifically, the bogie 5 can be fastened to the mounting hole 251 with bolts. In addition, the lower base plate 22 can be welded and fixed to the bogie 5.

[0078] Please see Figure 8 and Figure 9 Based on the same inventive concept, this application also provides a rail vehicle, including a car body 4, a bogie 5, and the aforementioned sleeper beam assembly.

[0079] The rail vehicle provided by this invention, due to the adoption of the aforementioned sleeper-beam assembly, allows for quick assembly and disassembly of the car body 4 and bogie 5, enabling rapid replacement of the bogie 5 during rail changes. The rail vehicle provided by this invention is suitable for conventional speed trains.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bolster beam assembly, characterized in that, include: The upper split (1) is used to fix it on the vehicle body (4); The upper body (1) has multiple fixed ring platforms (15) inside, and multiple insertion holes (182) are also provided on the bottom wall of the upper body (1); each fixed ring platform (15) is axially corresponding to one of the insertion holes (182), and the center hole (181) of the fixed ring platform (15) and the corresponding insertion hole (182) form a limiting hole (18); and The lower split (2) is used to be fixedly mounted on the bogie (5); the lower split (2) is provided with a limiting insert (25) corresponding to the multiple limiting holes (18) one by one. The limiting insert (25) is inserted into the corresponding limiting hole (18) along the vertical direction of the vehicle body.

2. The sleeper beam assembly as described in claim 1, characterized in that, The upper body (1) is a box structure; the top surface of the upper body (1) is parallel to the bottom surface of the vehicle body (4); in the left-right direction of the vehicle body, the middle part of the upper body (1) protrudes downward.

3. The bolster assembly as described in claim 2, characterized in that, The lower body (2) is a box structure; the top and bottom surfaces of the lower body (2) are respectively parallel to the bottom surface of the upper body (1).

4. The bolster assembly as described in claim 1, characterized in that, In the left-right direction of the vehicle body, the upper split (1) is provided with connecting beams (3) at both ends, and the connecting beams (3) extend along the front-rear direction of the vehicle body; the connecting beams (3) are used to be fixedly connected to the underframe side beams (41) of the vehicle body (4).

5. The bolster assembly as described in claim 1, characterized in that, Multiple fixed ring platforms (15) are distributed at intervals along the left and right directions of the vehicle body.

6. The bolster assembly as described in claim 1, characterized in that, The upper part (1) includes: Top plate (11); The upper bottom plate (12) is located below the upper top plate (11); Two upper side panels (13) are respectively disposed between the upper top plate (11) and the upper bottom plate (12), and are spaced apart along the front-rear direction of the vehicle body; and Multiple upper uprights (14) are respectively disposed between the upper top plate (11) and the upper bottom plate (12), and are distributed at intervals along the left and right directions of the vehicle body.

7. The bolster beam assembly as described in claim 6, characterized in that, In the left-right direction of the vehicle body, the upper split (1) is provided with a support column (16) at its center. The upper and lower end faces of the support column (16) are connected to the upper top plate (11) and the upper bottom plate (12) respectively.

8. The bolster assembly as described in claim 1, characterized in that, The lower sub-body (2) includes: Lower top plate (21); The lower bottom plate (22) is located below the lower top plate (21); Two lower side panels (23) are respectively disposed between the lower top plate (21) and the lower bottom plate (22), and are spaced apart along the front-rear direction of the vehicle body; and Multiple lower upright plates (24) are respectively disposed between the lower top plate (21) and the lower bottom plate (22), and are distributed at intervals along the left and right directions of the vehicle body.

9. The bolster assembly as described in claim 1, characterized in that, The limiting insert (25) has an installation hole (251) for connecting to the bogie (5).

10. A rail vehicle, characterized in that, Includes the vehicle body, bogie, and the bolster assembly as described in any one of claims 1-9.

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