AU2015327556A1 - Wagon and end wall thereof - Google Patents

Abstract

Disclosed is a wagon and an end wall thereof. The end wall comprises several sub-wall plates (1) connected from left to right in sequence, wherein the sub-wall plates (1) comprise an inner side plate (11) and an outer side plate (12) both extending along the vertical direction, the inner side plate (11) and the outer side plate (12) are connected to each other, and a hollow cavity (13) is between the two, and the hollow cavity (13) is provided with a reinforcing rib (14). Compared with the prior art, a supporting beam of a plate and column type structure is eliminated, the quantity of components is reduced, an end wall structure is simplified, and the degree of manufacturing difficulty thereof is lowered; each sub-wall plate is formed by the inner side plate (11) being connected to the outer side plate (12), the reinforcing rib (14) is added between the two side plates, forming an enclosed box-shaped structure, having a higher strength and a better rigidity performance, and improving the safety reliability of the wagon usage; and each sub-wall plate can adjust the structure thereof according to requirements, reducing the dead load of the structure, and lightening the wagon.

Description

English Translation of PCT/CN2015/078513

WAGON AND END WALL THEREOF

[0001] This application claims the benefit of priority to Chinese patent application No. 201410520600.0, titled " RAILWAY WAGON AND END WALL THEREOF", filed with the 5 Chinese State Intellectual Property Office on September 30, 2014, the entire disclosure of which is incorporated herein by reference.

FIELD

[0002] The present application relates to the technical field of railway transport, and particularly to a railway wagon and an end wall thereof.

10 BACKGROUND

[0003] A hopper wagon is a kind of railway wagon, and has advantages of a high unloading efficiency, a low overall investment, a low routine operation expense, a good working condition, etc.. Transporting large bulk cargos such as coal by the hopper wagon is the most economical mode of transport, which has become a consensus among domestic and 15 international railway transportation enterprises, especially for a line which has a small distance from a mining area, a large transport quantity and a fixed coal conveying section, the transport economical effect is more obvious.

[0004] A bottom of the hopper wagon between two adjacent bogies is provided with a hopper opening for unloading cargo. When a bottom door for unloading cargo is opened, bulk 20 cargo loaded in the wagon falls down under the gravity of the cargo to converge and is discharged out via the hopper opening. Since the hopper opening cannot be arranged above the bogies, an end wall of the car body located above the bogies must be configured as a structure which has an inclination with respect to a horizontal plane, and the inclination should generally be larger than an repose angle of the bulk cargo loaded in the wagon, thus, 25 the cargo on the end wall can be discharged by gravity. It is clear that, the end wall of the hopper wagon not only bears a vertical load from the bulk cargo in the wagon, but also bears inertial impact loads generated due to working conditions such as starting, braking and curves, ramps, acceleration and deceleration during running of the wagon. -1 -

English Translation of PCT/CN2015/078513 [0005] Reference is made to Figures 1 and 2, Figure 1 is a schematic front view showing the structure of an end wall in an arrangement mode in the conventional technology; and Figure 2 is a schematic sectional view showing the structure of Figure 1 taken along direction A-A. 5 [0006] A conventional hopper wagon end wall is generally of a plate-column structure, and mainly includes an upper end beam 100, an inclined end plate 200, a cross band 300, an end column 400, a support plate 500 and a side brace 600. The conventional hopper wagon end wall has a large dead weight, a complicated structure, a difficult manufacturing process, and more than this, the end wall employing such a structure can hardly meet the requirement for 10 structural reliability under an impact load.

[0007] In view of the above issues, an end wall structure of a hopper wagon and a hopper wagon employing the end wall structure are disclosed in Chinese patent disclosure No. CN 103693053 A. The end wall according to this technical solution is substantially still a plate-column structure, and includes an end plate, a cross band, a side brace, an end column 15 and a support plate, etc.. Three cross bands and the side brace extending through the cross bands are arranged below the end plate, thus improving an impact load carrying capacity of the end wall.

[0008] However, numerous parts and components are required in this solution, the structural connection is complicated, the difficulty in manufacturing is high, especially, the 20 shape of the side brace is complex, and the processing and assembling precision is low.

[0009] Therefore, a technical issue to be addressed by those skilled in the field presently is to design an end wall of a railway wagon, in order to ensure the structural reliability, and besides simplify the structure of the end wall and reduce the difficulty in manufacturing.

SUMMARY 25 [0010] An end wall of a railway wagon is provided according to the present application, which has a simple structure, a low difficulty in manufacturing, less parts and components, high strength and rigidity, and a high reliability in use.

[0011] A railway wagon having the above end wall is further provided according to the present application, which has a simple structure, and is safe and reliable in use. -2 -

English Translation of PCT/CN2015/078513 [0012] An end wall of a railway wagon according to the present application includes a plurality of sub-wallboards 1 connected from left to right in sequence, each of the sub-wallboards 1 includes an inner side plate 11 and an outer side plate 12 both extending in an up and down direction, the inner side plate 11 and the outer side plate 12 are connected to each other, and there is a hollow cavity 13 between the inner side plate 11 and the outer side plate 12, and reinforcing ribs 14 are provided in the hollow cavity 13.

[0013] The end wall according to the present application includes a plurality of sub-wallboards 1, and the sub-wallboards 1 are connected in sequence from left to right. Compared with the conventional technology, a support beam of a plate-column structure is omitted, and the number of parts and components is reduced, the structure of the end wall is simplified, and the difficulty in manufacturing the end wall is lowered. Furthermore, each of the sub-wallboards 1 is formed by connecting the inner side plate 11 and the outer side plate 12, and the reinforcing ribs 14 are provided between the two side plates, thus forming an enclosed box-shaped structure, which has a high strength and a good rigidity performance, and improves a safety reliability of the railway wagon in use. The structure of the sub-wallboards 1 may be adjusted according to requirements to reduce the number of parts and components as much as possible, reduce a dead weight of the structure, realize lightening of the railway wagon, and improve a carrying capacity of the railway wagon.

[0014] Optionally, the reinforcing ribs 14 are in parallel with each other or connected end to end.

[0015] Optionally, the sub-wallboards 1 are welded or riveted in sequence.

[0016] Optionally, the sub-wallboards 1 are welded together by welding inner side plates 11 in sequence and by welding outer side plates 12 in sequence respectively.

[0017] Optionally, a hopper-shaped welding seam is formed at a welded portion between the inner side plates 11 and/or a welded portion between the outer side plates 12.

[0018] Optionally, in each of the sub-wallboards 1, ends of the outer side plate 12 are inclined inwards to be connected to the corresponding inner side plate 11 to form a connecting portion 15; and the connecting portions 15 are riveted or welded in sequence.

[0019] Optionally, a left side of the sub-wallboard 1 at a left end is bent inwards to form a left bent portion 16 for connecting a side wall of the railway wagon; and/or a right side of the -3 -

English Translation of PCT/CN2015/078513 sub-wallboard 1 at a right end is bent inwards to form a right bent portion 17 for connecting a side wall of the railway wagon.

[0020] Optionally, the sub-wallboard 1 is formed by extruding a hollow aluminum profile in the up and down direction.

[0021] Optionally, the sub-wallboards 1 are connected in sequence to form an end wall plate 2, and the end wall plate 2 is inclined inwards from up to down.

[0022] Optionally, the end wall further includes a support plate 3 configured to support the end wall plate 2.

[0023] Optionally, the end wall further includes a fill block 4, a groove 18 is provided at a joint of two sub-wallboards 1, the fill block 4 is filled in the groove 18, and the fill block 4 and the outer side plates 12 of the sub-wallboards 1 together form a connecting surface configured to connect the support plate 3.

[0024] Optionally, the end wall further includes an upper end beam 5 connected above the end wall plate 2.

[0025] Optionally, the end wall further includes a connecting plate 6, a predetermined angle is between the upper end beam 5 and the end wall plate 2, the connecting plate 6 includes two sub-plates formed by bending according to the predetermined angle, and the two sub-plates are respectively connected to the upper end beam 5 and the end wall plate 2.

[0026] A railway wagon is further provided according to the present application, which includes the end wall according to any one of the above aspects.

[0027] Since the railway wagon according to the present application has the end wall according to any one of the above aspects, the technical effects of the end wall according to any one of the above aspects are all adapted to the railway wagon according to the present application, which are not described here.

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic front view showing the structure of an arrangement of an end wall in the conventional technology; [0029] Figure 2 is a schematic sectional view showing the structure in Figure 1 taken along

English Translation of PCT/CN2015/078513 direction A-A; [0030] Figure 3 is a schematic perspective view showing the structure of a railway wagon according to an embodiment of the present application; [0031] Figure 4 is a schematic perspective view showing the structure of an end wall of a 5 railway wagon according to an embodiment of the present application; [0032] Figure 5 is a schematic front view showing the structure of the end wall in Figure 4; [0033] Figure 6 is a schematic side view showing the structure of the end wall in Figure 4; [0034] Figure 7 is a schematic sectional view showing the structure in Figure 6 taken along line B-B; 10 [0035] Figure 8 is a schematic partially enlarged view of a connecting portion 15 of a sub-wallboard 1 in a first setting mode according to the present application; [0036] Figure 9 is a schematic partially enlarged view of a connecting portion 15 of the sub-wallboard 1 in a second setting mode according to the present application; [0037] Figure 10 is a schematic partially enlarged view of a connecting portion 15 of the 15 sub-wallboard 1 in a third setting mode according to the present application; [0038] Figure 11 is a schematic partially enlarged view of a connecting portion 15 of the sub-wallboard 1 in a fourth setting mode according to the present application; [0039] Figure 12 is a schematic sectional view showing the structure of a subsidiary end wall according to the present application in an arrangement; and 20 [0040] Figure 13 is a schematic sectional view showing the structure of the subsidiary end wall according to the present application in another arrangement.

[0041] Reference Numerals in Figures 1 and 2: 200 inclined end plate, 400 end column, 600 side brace. 100 upper end beam, 300 cross band, 25 500 support plate, and [0042] Reference Numerals in Figures 3 to 13: 1 sub-wallboard, 12 outer side plate, 11 inner side plate, 13 hollow cavity, -5 -

English Translation of PCT/CN2015/078513 14 reinforcing rib, 15 connecting portion, 16 left bent portion, 17 right bent portion, 18 groove, 2 end wall plate, 3 support plate, 31 support column, 4 fill block, 5 upper end beam 6 connecting plate, 7 receiving chamber, 8 receiving hole.

DETAILED DESCRIPTION

[0043] An end wall of a railway wagon is provided according to the present application, 10 which has a simple structure, a low difficulty in manufacturing, and less parts and components required, a high strength and rigidity, and a high reliability in use.

[0044] A railway wagon having the above end wall is further provided according to the present application, which has a simple structure, and is safe and reliable in use.

[0045] In order to make those skilled in the field to better understand the solutions of the 15 present application, the present application is further described in detail in conjunction with the drawings and embodiments.

[0046] Reference is made to Figures 3 to 4, Figure 3 is a schematic perspective view showing the structure of a railway wagon according to an embodiment of the present application; and Figure 4 is a schematic perspective view showing the structure of an end wall 20 of a railway wagon according to an embodiment of the present application.

[0047] In an embodiment, a railway wagon according to the present application is generally used for loading bulk cargo, and may be a hopper wagon. For facilitating discharging, an end wall may be obliquely arranged, as shown in Figures 3 and 4. In this case, the end wall not only bears a vertical load from the bulk cargo in the wagon, but also bears inertial impact 25 loads generated due to working conditions of starting, braking and curves, ramps, acceleration and deceleration during running of the wagon.

[0048] An end wall adopted by the railway wagon according to the present application includes a plurality of sub-wallboards 1. The sub-wallboards 1 each extend in an up and down direction, and are connected from left to right in sequence. Each of the sub-wallboards 1 -6 -

English Translation of PCT/CN2015/078513 includes an inner side plate 11 and an outer side plate 12 connected to each other, a hollow cavity 13 is formed between the inner side plate 11 and the outer side plate 12, and a reinforcing rib 14 is provided inside the hollow cavity 13.

[0049] The inner side plate 11 and the outer side plate 12 extending in the up and down direction refers to that: the inner side plate 11 and the outer side plate 12 extend substantially in the up and down direction and may also incline by a certain angle with respect to the up and down direction, as long as the inner side plate 11 and the outer side plate 12 have a tendency of extending in the up and down direction, which is not limited to the case of the inner side plate 11 and the outer side plate 12 extending vertically in the up and down direction.

[0050] The end wall plate 2 in the conventional technology employs a plate-column structure. The end wall plate 2 is a thin plate, for achieving a certain load carrying capacity, a support beam structure such as a cross band and an end column beam must be provided behind the end wall plate, thus resulting in a complicated structure and a high difficulty in manufacturing.

[0051] In view of the above issues, the above structural arrangement is adopted in the present application. The end wall includes a plurality of sub-wallboards 1, and the sub-wallboards 1 are connected from left to right in sequence, thus, the end wall has a simple structure and is easy to assemble. Each of the sub-wallboards 1 includes the inner side plate 11 and the outer side plate 12, and the reinforcing rib 14 is provided between the two side plates, thus the arrangement of a support beam is omitted, the structure is further simplified, the number of parts and components required is reduced, and the difficulty in manufacturing is reduced. The reinforcing rib 14 is provided between the inner side plate 11 and the outer side plate 12, thus an enclosed box-shaped structure is formed. From the perspective of structural mechanics, the structure has a high load carrying capacity, thus simplifying the structure of the end wall, and moreover improving the strength of the whole end wall, and maintaining the original mechanical performance of the end wall.

[0052] The orientation and location described herein take the railway wagon as a reference. A direction close to a rail on which the railway wagon runs is a down direction, and a direction away from the rail on which the railway wagon runs is an up direction. A direction in which the railway wagon runs is a longitudinal direction, and in a plane in parallel with the -7-

English Translation of PCT/CN2015/078513 rail on which the railway wagon runs, a direction perpendicular to the longitudinal direction is a transverse direction. The transverse direction may also be referred to as a left-right direction, and seen from the running direction of the wagon, a direction at a left side of the transverse direction is left, and a direction at a right side of the transverse direction is right. In various directions, a direction close to the center of the railway wagon is an inner direction, and a direction away from the center is an outer direction.

[0053] The terms of “a plurality of’ mentioned herein refers to multiple objects with an uncertain number, which is generally greater than three.

[0054] Further, each sub-wallboard 1 may also be formed by extruding hollow aluminum profile, and since the sub-wallboard 1 extends in the up and down direction, the hollow aluminum profile may be extruded in the up and down direction to form the sub-wallboard 1. The sub-wallboard 1 includes the inner side plate 11, the outer side plate 12, and the reinforcing rib 14 arranged between the inner side plate 11 and the outer side plate 12. The inner side plate 11, the outer side plate 12 and the reinforcing rib 14 may be formed by extruding the hollow aluminum profile to form a sub-wallboard 1 with an enclosed box-shape.

[0055] A mould used in a hollow aluminum profile extrusion molding generally has a uniform width, and is substantially not limited in a length direction. In the case that the sub-wallboard 1 is formed by the hollow aluminum profile extrusion molding in the up and down direction, a width of the sub-wallboard 1 in the left-right direction is easily controlled, and a machining allowance of the sub-wallboard 1 in the up and down direction is increased, thus is beneficial to increase or reduce a height of the end wall according to a height requirement of the wagon body, and to optimize the structure of the wagon body.

[0056] Further, the whole end wall is formed by the hollow aluminum profile extrusion molding, thus the number of parts and components on the end wall is reduced, the manufacturing process is simplified, and the manufacturing difficulty is lowered, thereby helping shorten a production cycle of the product. More importantly, a shape of the section and a size of the hollow aluminum profile can be flexibly adjusted. With the optimized design, a dead weight of the end wall may be reduced, thereby realizing lightweight of the end wall in the wagon body of the railway wagon and improving a carrying capacity of the wagon. After being formed by the hollow aluminum profile extrusion molding, the sub-wallboard 1 has an integral enclosed box-shaped structure, the structural stability is improved, the strength and -8-

English Translation of PCT/CN2015/078513 rigidity are high, and a load carrying capacity is strong. Furthermore, the hollow aluminum profile has a smooth surface, which allows an inner wall of the end wall to be smooth, and there is no protrusion or comer inside the wagon body, thus the probability of cargo being accumulated and blocked inside the wagon can be reduced, and the discharging rate of the cargo is high.

[0057] Further, referring to Figures 5 to 7, Figure 5 is a schematic front view showing the structure of the end wall in Figure 4; Figure 6 is a schematic side view showing the structure of the end wall in Figure 4; and Figure 7 is a schematic sectional view showing the structure in Figure 6 taken along line B-B.

[0058] The sub-wallboards 1 may be connected in sequence to form the end wall plate 2. The end wall plate 2 may be inclined outwards from up to down to form an inclined angle, as shown in Figures 5 and 6, and the inclined angle may be greater than a repose angle of the bulk cargo located on the end wall, thus allowing the cargo to be discharged automatically under the action of self-gravity.

[0059] In the case that the end wall plate 2 is arranged to be inclined, a support plate 3 configured to support the end wall plate 2 may be provided, as shown in Figures 5 and 6. The support plate 3 may support at an outer side of the end wall plate 2, and may form a certain angle with respect to the end wall plate 2. The support plate 3 may also be arranged to incline, and an inclined direction is opposite to an inclined direction of the end wall plate 2, thus supporting the end wall plate 2.

[0060] The support plate 3 may be further provided with a support column for improving the strength of the support plate 3, thus the support column and the support plate 3 form a simple plate-column structure. The support column may be arranged in an extending direction of the support plate 3, and may also be arranged on the support plate 3 in any direction.

[0061] In normal conditions, the end wall on the railway wagon, such as a hopper wagon, has a large length. For avoiding a bending deformation of the whole end wall, an appropriate support can be added in a length direction of the end wall plate 2. The simple plate-column structure including the support plate 3 and the support column may just function as the support, thus greatly reducing the probability of generating the bending deformation of the end wall. -9 -

English Translation of PCT/CN2015/078513 [0062] A joint of two sub-wallboards 1 may be maintained in the same plane as the inner side plate 11 and the outer side plate 12, and may also be concaved inwards to form a groove 18. Reference is made to the description about the groove 18 hereinafter. As shown in Figure 7, a groove 18 may be provided at a joint of two sub-wallboards 1, and a section of the groove 18 may be a trapezoid-like structure such as an isosceles trapezoid-like structure, etc., which facilitates the connection between the sub-wallboards 1, and prevents a connecting member used for connection from protruding beyond surfaces of the inner side plate 11 and the outer side plate 12 and hindering the use of the end wall plate 2 or the connection of the end wall plate 2 to other structures.

[0063] In the case that the groove 18 is provided at the joint of two sub-wallboards 1, a fill block 4 may be provided. The fill block 4 is filled in the groove 18 to be substantially flush with the outer side plate 12, thus forming a connecting surface used for connecting the support plate 3. As shown in Figure 5, an upper end surface of the support plate 3 may be connected to an outer side surface of the end wall plate 2 to improve the reliability of the connection between the support plate 3 and the end wall plate 2.

[0064] It should be noted that, in the structure of the end wall plate 2 in Figure 7, the fill block 4 is directly filled in the groove 18, therefore the fill block 4 and the outer side plate 12 together form a connecting surface. For clearly illustrating the structure of the groove 18, only one of the grooves 18 is made empty in Figure 7, that is, one of the grooves 18 is not filled with the fill block 4. Those skilled in the field should understand that, this is only for the purpose of illustration herein and does not mean that the one groove 18 is not required to be filled with the fill block 4.

[0065] For improving the reliability of connection between the support plate 3 and the end wall plate 2, the fill block 4 should generally match the groove 18 in structure, so as to prevent the fill block 4 from wobbling in the groove 18 and adversely affecting the reliability of the positioning of the support plate 3.

[0066] Further, an upper end beam 5 may also be arranged above the end wall plate 2 to block the cargo and improve the strength and reliability of the structure at an upper part of the wagon body, as shown in Figures 5 and 6.

[0067] Specifically, a connecting plate 6 used for connecting the end wall plate 2 and the upper end beam 5 may further be provided. In general cases, a predetermined angle may be -10-

English Translation of PCT/CN2015/078513 formed between the upper end beam 5 and the end wall plate 2, and the predetermined angle may be adjusted according to the requirements of load bearing and connection. Since the end wall plate 2 is inclined inwards from up to down and the upper end beam 5 is connected above the end wall plate 2, an included angle between the upper end beam 5 and the end wall plate 2 is generally an obtuse angle and located at an inner side, as shown in Figure 6. The end wall plate 2 may be inclined outwards, and the upper end beam 5 may extend in the up and down direction, that is, an end surface of the upper end beam 5 may be uprightly arranged, and an inner side included angle formed between the upper end beam 5 and the end wall plate 2 is an obtuse angle. For facilitating the connection between the upper end beam 5 and the end wall plate 2, a connecting plate 6 may be provided. The connecting plate 6 may be provided as a bent member herein, which includes two sub-plates, and the two sub-plates may be bent according to the predetermined angle to match with the upper end beam 5 and the end wall plate 2. That is, the two sub-plates may be respectively connected to the upper end beam 5 and the end wall plate 2, thus achieving a reliable connection between the upper end beam 5 and the end wall plate 2.

[0068] Further, as shown in Figure 7, in the sub-wallboard 1 according to the present application, a left side of the sub-wallboard 1 at a left end may be bent inwards to form a left bent portion 16 used for connecting a side wall of the railway wagon. Similarly, a right side of the sub-wallboard 1 at a right end may also be bent inwards to form a right bent portion 17. The right bent portion 17 may also be used for connecting a side wall of the railway wagon, thus allowing the whole end wall plate 2 to be connected at ends of the side walls to jointly form the railway wagon in Figure 3.

[0069] The left bent portion 16 and the right bent portion 17 may be perpendicular to the inner side plate 11 or inclined by a certain angle with respect to the inner side plate 11. The left bent portion 16 and the right bent portion 17 may each has a plate or column structure, and may also be other connection structures such as a clamping portion.

[0070] It may be conceivable that, the left bent portion 16 and the right bent portion 17 may have various structural forms, and are not limited to the above structural forms, as long as the structure thereof can connect the sub-wallboards 1 to the side walls.

[0071] Based on the above description, the sub-wallboards 1 according to the present application may be fixedly connected by connection manners such as welding or riveting. - it -

English Translation of PCT/CN2015/078513 [0072] Reference is further made to Figures 8 to 11, Figure 8 is a schematic partially enlarged view of a connecting portion 15 of a sub-wallboard 1 in a first setting mode according to the present application; Figure 9 is a schematic partially enlarged view of a connecting portion 15 of the sub-wallboard 1 in a second setting mode according to the present application; Figure 10 is a schematic partially enlarged view of a connecting portion 15 of the sub-wallboard 1 in a third setting mode according to the present application; and Figure 11 is a schematic partially enlarged view of a connecting portion 15 of the sub-wallboard 1 in a fourth setting mode according to the present application.

[0073] In the sub-wallboards 1 according to the present application, ends of each outer side plate 12 can be inclined inwards and are connected to the corresponding inner side plate 11 to form a connecting portion 15. Thus, the sub-wallboards 1 may be connected by the connecting portion 15, as shown in Figure 7. Specifically, a rivet hole may be provided in the connecting portion 15, and riveting can be achieved by a rivet. Or, the connecting portions 15 may be connected by welding to achieve the connection between the sub-wallboards 1, as shown in Figure 8.

[0074] After the ends of the outer side plate 12 of the sub-wallboard 1 are bent inwards, the outer side plate 12 may be connected to the corresponding inner side plate 11, thus allowing the two side plates to be connected into one side plate, and reducing a thickness of the connecting portion 15 in the inner-outer direction. This equivalents to that the whole wall plate is concaved inwards at the connecting portion 15, thus a structure similar to a groove is formed at the connecting portion 15 between two adjacent end wall plates 2. In the case that a riveting structure is employed, the groove 18 provides a space for placing a rivet head or a rivet collar, which may prevent the rivet from protruding outwards and hindering the use of the end wall, and may further prevent cargo bearing from being adversely affected by mounting of the rivet. In the case that the welding structure is employed, the inner side plate 11 and the outer side plate 12 are not required to be separately welded, thus simplifying the welding process.

[0075] In the case that the sub-wallboards 1 employ the welding structure, the inner side plates 11 and the outer side plates 12 may be separately welded. That is, the inner side plates llof the sub-wallboards 1 are welded in sequence, the outer side plates 12 are welded in sequence, and the inner side plates 11 do not interfere with the outer side plates 12, as shown -12 -

English Translation of PCT/CN2015/078513 in Figure 9. In this case, reinforcing ribs 14 may further be provided at a welded portion between the inner side plates 11 and at a welded portion between the outer side plates 12 to improve the reliability of connection.

[0076] In the case that the inner side plates 11 and the outer side plates 12 are separately welded, welding joints can be formed at both the inner side and the outer side, and an end wall with both sides welded is formed, thus improves the overall load carrying capacity, reduces a stress on the end wall, and prevents a local stress concentration and a weak portion in connection from occurring.

[0077] Specifically, a hopper-shaped welding seam may be formed at a welded portion between the inner side plates 11, that is, ends of the inner side plates 11 may each be set in a conical surface, thus allowing a hopper-shaped receiving chamber 7 to be formed between adjacent inner side plates 11 being connected, and also facilitating the filling of the welding material. Such that the welding material is filled in the receiving chamber 7, and finally the hopper-shaped welding seam is formed. Similarly, a hopper-shaped welding seam may also be formed at the welded portion between the outer side plates 12, the specific structure of the outer side plates 12 may also employ the above structural form of the inner side plates 11, as shown in Figure 10.

[0078] In the case that the hopper-shaped welding seam is employed, the welding material may be fully filled conveniently, which improves the connection reliability. And also, the welding material may be allowed to flow in an inclined direction of the hopper-shaped receiving chamber 7 under the effect of gravity, thus reducing the randomness of flowing of the weling material, thereby effectively filling the welding seam, and a protruding point may not be formed on the surface of the end wall during welding, thus, the loading and discharging of cargo may not be adversely affected.

[0079] Furthermore, an adjustable welding joint may also be employed, as shown in Figure 11. The ends of the inner side plate 11 and/or the outer side plate 12 may be each provided with a receiving hole 8 for filling the welding material. Or the sub-wallboards 1 are connected in sequence by insertion or sleeving, and then the receiving hole 8 is provided at each insertion portion or sleeve portion, to allow the welding material to be filled into the receiving hole 8. Welding may also be performed at an appropriate position at the joints between the sub-wallboards 1. -13 -

English Translation of PCT/CN2015/078513 [0080] In the case that the above structure is employed, an arranging position of the receiving hole 8 may be adjusted, or a depth of insertion or sleeving between the sub-wallboards 1 may be adjusted, thus adjusting the welding position to achieve a reliable connection.

[0081] It may be appreciated by those skilled in the field that, the sub-wallboards 1 may also be fixed by other fixing manners such as the pin joint, and reference may be made to the conventional technology regarding to the specific connection manners.

[0082] It is to be noted that, Figures 8 to 11 herein are all shown taken the end wall arranged in a state in Figure 7, rather than in a usage state of the end wall, this is simply for easy description without representing any limitation to the structure of the end wall. It should be understood by those skilled in the art that, the structure shown in Figures 8 to 11 should be mounted to the wagon body after being rotated counterclockwise by a certain angle.

[0083] Referring to Figures 12 and 13, Figure 12 is a schematic sectional view showing the structure of a subsidiary end wall in a setting mode according to the present application; and Figure 13 is a schematic sectional view showing the structure of a subsidiary end wall in another setting mode according to the present application.

[0084] Further, in the sub-wallboard 1 according to the present application, the reinforcing ribs 14 of the sub-wallboard 1 may be arranged in parallel with each other or the reinforcing ribs 14 may be intersected, as shown in Figures 12 and 13.

[0085] As shown in Figure 12, the reinforcing ribs 14 may be perpendicular to the inner side plate 11, or may be inclined with respect to the inner side plates 11. In one setting mode, main body parts of the inner side plate 11 and the outer side plate 12 may be in parallel with each other, simply ends of the inner side plate 11 and the outer side plate 12 are connected, thus the reinforcing ribs 14 may be perpendicular to the main body parts of the inner side plate 11 and the outer side plate 12, or may be arranged in parallel with each other in other directions.

[0086] Or, the reinforcing ribs 14 may be arranged in a wave shape in the hollow cavity 13 between the inner side plate 11 and the outer side plate 12, as shown in Figure 13. Specifically, for facilitating the connection and improving the strength of the end wall, the reinforcing ribs 147 may be connected in sequence, and the reinforcing ribs 14 may be connected end to end, -14-

English Translation of PCT/CN2015/078513 thus dividing the hollow cavity 13 into various structures with triangular-shaped sections, and thereby improving the strength and reliability of the whole end wall, and increasing the carrying capacity of the wagon.

[0087] Of course, the reinforcing rib 14 may also be embodied as other structural forms, as 5 long as the reinforcing rib can be located between the inner side plate 11 and the outer side plate 12 to improve the strength of the end wall. For example, the reinforcing rib 14 may also extend in the up and down direction or in the longitudinal direction.

[0088] It is to be further explained that, the railway wagon has many components, and the structure is complicated, only the end wall of the railway wagon is described in detail herein, 10 and for other components except the end wall, reference may be made to the conventional technology, which will not be described here.

[0089] The railway wagon and the end wall thereof according to the present application are described in detail hereinbefore. The principle and the embodiments of the present application are illustrated herein by specific examples. The above description of examples is only 15 intended to help the understanding of the spirit of the present application. It should be noted that, for those skilled in the art, a few of modifications and improvements may be made to the present application without departing from the principle of the present application, and these modifications and improvements are also deemed to fall into the scope of the present application defined by the claims. -15 -

Claims (14)

1. An end wall of a railway wagon, comprising a plurality of sub-wallboards (1) connected from left to right in sequence, wherein each of the sub-wallboards (1) comprises an inner side plate (11) and an outer side plate (12) both extending in an up and down direction, the inner side plate (11) and the outer side plate (12) are connected to each other, there is a hollow cavity (13) between the inner side plate (11) and the outer side plate (12), and reinforcing ribs (14) are provided in the hollow cavity (13).

2. The end wall according to claim 1, wherein the reinforcing ribs (14) are in parallel with each other or connected end to end.

3. The end wall according to claim 1, wherein the sub-wallboards (1) are welded or riveted in sequence.

4. The end wall according to claim 3, wherein the sub-wallboards (1) are welded by welding the inner side plates (11) in sequence and by welding the outer side plates (12) in sequence respectively.

5. The end wall according to claim 4, wherein a hopper-shaped welding seam is formed at a welded portion between the inner side plates (11) and/or a welded portion between the outer side plates (12).

6. The end wall according to claim 3, wherein in each of the sub-wallboards (1), ends of the outer side plate (12) are inclined inwards to be connected to corresponding inner side plate (11) to form a connecting portion (15); and the connecting portions (15) are riveted or welded in sequence.

7. The end wall according to claim 1, wherein a left side of the sub-wallboard (1) at a left end is bent inwards to form a left bent portion (16) for connecting a side wall of the railway wagon; and/or a right side of the sub-wallboard (1) at a right end is bent inwards to form a right bent portion (17) for connecting a side wall of the railway wagon.

8. The end wall according to claim 1, wherein the sub-wallboard (1) is formed by extruding a hollow aluminum profile in the up and down direction.

9. The end wall according to any one of claims 1 to 8, wherein the sub-wallboards (1) are connected in sequence to form an end wall plate (2), and the end wall plate (2) is inclined inwards from up to down.

10. The end wall according to claim 9, further comprising a support plate (3) configured to support the end wall plate (2).

11. The end wall according to claim 10, further comprising a fill block (4), wherein a groove (18) is provided at a joint of two sub-wallboards (1), the fill block (4) is filled in the groove (18), and the fill block (4) and the outer side plates (12) of the sub-wallboards (1) together form a connecting surface configured to connect the support plate (3).

12. The end wall according to claim 9, further comprising an upper end beam (5) connected above the end wall plate (2).

13. The end wall according to claim 12, further comprising a connecting plate (6), wherein there is a predetermined angle between the upper end beam (5) and the end wall plate (2), the connecting plate (6) comprises two sub-plates formed by bending according to the predetermined angle, and the two sub-plates are respectively connected to the upper end beam (5) and the end wall plate (2).

14. A railway wagon, comprising the end wall according to any one of claims 1 to 13.