Lower side beam assembly of railway wagon and railway wagon

Abstract

The utility model discloses a lower side beam assembly of a rail wagon and the rail wagon. The lower side beam assembly comprises a vertical part, a transverse part and a U-shaped part; the length directions of the vertical part, the transverse part and the U-shaped part are consistent with the length direction of the railway wagon; the vertical part is in a flat plate shape and is vertically arranged; the transverse part is in a flat plate shape and is horizontally arranged; one side of the transverse part is connected with one side of the vertical part through an arc-shaped structure, and the radian of the arc-shaped structure is larger than 85 degrees and smaller than 95 degrees. The plane of the upper surface of the transverse part is lower than the plane of the bottom surface of the vertical part; the U-shaped part is located below the transverse part, the transverse section of the U-shaped part is in a U shape, and an opening of the U shape faces the transverse part and is closed by the transverse part; the central face, perpendicular to the width direction, of the U-shaped part is perpendicular to the transverse part. The lower side beam assembly is favorable for reducing the self weight on the basis of stable structure, and is suitable for railway wagons for transporting large-size containers.

Description

Technical Field

[0001] This utility model relates to a lower side beam assembly of a railway freight car and the railway freight car itself. Background Technology

[0002] On the one hand, currently, the main container types used in railway freight are 20-foot and 40-foot general-purpose containers. When transporting 48-foot containers in existing vehicles, there is a problem that the containers cannot be directly loaded at the bottom of the vehicle body. Instead, one 40-foot container or two 20-foot containers must first be selected and loaded on the bottom layer. Furthermore, it is not possible to load 48-foot containers on two layers at the same time.

[0003] On the other hand, the lower side beam is one of the important components of railway freight cars, playing a role in transmitting longitudinal forces and bearing vertical loads. One literature reports a lower side beam comprising parallel cold-formed square tubes and cold-formed channel steel. The two end edges of the cold-formed channel steel are fixed to the two ends of one side wall of the cold-formed square tube, and the cross-section of the cold-formed channel steel is trapezoidal.

[0004] The existing lower side beam configuration is neither structurally nor physically suitable for the extended railway freight cars that can simultaneously carry 48-foot containers. Utility Model Content

[0005] In view of this, one objective of this utility model is to provide a lower side beam assembly for a railway freight car that reduces its weight while ensuring structural stability, making it suitable for extended railway freight cars to better transport double-stacked large containers. Another objective of this utility model is to provide a railway freight car.

[0006] The present invention achieves the above objectives by adopting the following technical solution.

[0007] On the one hand, this utility model provides a lower side beam assembly for a railway freight car, the lower side beam assembly including a vertical part, a horizontal part and a U-shaped part;

[0008] The length directions of the vertical section, the horizontal section, and the U-shaped section are all consistent with the length direction of the railway freight car;

[0009] The vertical portion is flat and is arranged vertically;

[0010] The horizontal portion is flat and horizontally arranged; one side of the horizontal portion is connected to one side of the vertical portion by an arc-shaped structure, the arc of which is greater than 85° and less than 95°; the plane containing the upper surface of the horizontal portion is lower than the plane containing the bottom surface of the vertical portion.

[0011] The U-shaped section is located below the transverse section. The transverse cross-section of the U-shaped section is U-shaped, with the opening of the U-shape facing the transverse section and closed by it. The center plane of the U-shaped section, perpendicular to its width direction, is perpendicular to the transverse section. This design helps to reduce weight while ensuring the structural stability of the lower side beams, making it suitable for extended railway freight cars used for transporting large containers.

[0012] In this utility model, the railway freight car includes multiple carriages, and in at least a portion of the carriages, the lower side beams are composed of two sets, which are symmetrically arranged with respect to the central plane of the railway freight car perpendicular to the width direction.

[0013] In this utility model, the vertical part, the horizontal part, and the U-shaped part are all steel structures.

[0014] In the transverse cross-sections of the transverse portion and the U-shaped portion, the straight line containing the bottom of the U-shaped portion is parallel to the straight line containing the bottom of the transverse portion.

[0015] According to one embodiment of this utility model, one side of the horizontal portion and one side of the vertical portion (the bottom of the vertical portion) are connected by an arc-shaped structure, the arc of which has an angle of 90°. The angle can be measured using known methods. The horizontal cross-section of the arc-shaped structure is arc-shaped.

[0016] According to the lower side beam composition of the railway freight car described in this utility model, preferably, in the transverse section of the vertical part, the end of the vertical part away from the transverse part has an acute angle structure. This acute angle structure is denoted as α, and can be greater than 15° and less than 60°, for example, it can be 30°. This is beneficial for reducing the weight and for connecting with other components.

[0017] According to the composition of the lower side beam of the railway freight car of this utility model, preferably, the outer contour of the vertical part is an isosceles trapezoid, which is composed of a first end, a middle section and a second end connected in sequence. The first end and the second end are symmetrically arranged. The outer contour of the middle section is rectangular, and the length of the middle section is the same as the length of the horizontal part. The bottom of the middle section is connected to one side of the horizontal part through the arc-shaped structure. The outer contour of the first end is a right-angled triangle, having a first right-angled side, a second right-angled side and a first hypotenuse. The first right-angled side is collinear with the side of the middle section away from the horizontal part, and the second right-angled side is connected to the horizontal part. This helps to reduce the self-weight while ensuring structural stability.

[0018] In this invention, the outer contour of the vertical part is an isosceles trapezoid, and the short side of the isosceles trapezoid is connected to the horizontal part through an arc-shaped structure.

[0019] In some implementations, the transverse portion and the arc-shaped structure can be a single molded structure.

[0020] According to the composition of the lower side beam of the railway freight car described in this utility model, preferably, the acute angle formed between the first hypotenuse and the first right-angled side is greater than 10° and less than 50°. More preferably, it is greater than 15° and less than 45°. This is beneficial for loading large-sized containers.

[0021] According to the composition of the lower side beam of the railway freight car of the present invention, preferably, the length of the first right-angled side is greater than or equal to the width of the transverse portion.

[0022] According to the lower side beam composition of the railway freight car described in this utility model, preferably, the depth of the U-shaped portion is greater than the thickness of the transverse portion. This is beneficial to the structural stability of the lower side beam composition and its suitability for loading and transporting large-sized containers. The U-shaped portion can be channel steel, with the channel depth greater than the thickness of the transverse portion.

[0023] According to the lower side beam composition of the railway freight car described in this utility model, preferably, the width of the U-shaped portion is greater than half the width of the transverse portion and less than the width of the transverse portion. This allows the transverse portion to completely close the opening of the U-shape and helps to reduce the self-weight while ensuring the structural stability of the lower side beam composition.

[0024] According to the lower side beam composition of the railway freight car described in this utility model, preferably, the thickness of the wall of the U-shaped portion is less than the thickness of the transverse portion. This helps to reduce the weight.

[0025] According to the lower side beam composition of the railway freight car described in this utility model, preferably, the thickness of the transverse portion is the same as the thickness of the middle section. This is beneficial to the structural stability of the lower side beam composition.

[0026] On the other hand, the present invention also provides a railway freight car, including multiple carriages, at least one carriage including two sets of lower side beams of the railway freight car as described above, wherein the center plane of the railway freight car perpendicular to the width direction is defined as the first center plane; the two sets of lower side beams are symmetrically arranged with respect to the first center plane.

[0027] In some implementations, each car consists of two sets of lower side beams as described above for railway freight cars.

[0028] In this utility model, at least one carriage may further include end side plates, and there are four end side plates, namely a first end side plate, a second end side plate, a third end side plate and a fourth end side plate. The first end side plate and the third end side plate are symmetrically arranged with the first center plane as the symmetrical surface, and the second end side plate and the fourth end side plate are symmetrically arranged with the first center plane as the symmetrical surface. The first end side plate and the second end side plate are respectively symmetrically arranged at both ends of one set of lower side beams, and the third end side plate and the fourth end side plate are respectively symmetrically arranged at both ends of the other set of lower side beams.

[0029] The lower side beam assembly of this utility model is an improvement on the existing structure. This lower side beam assembly can be applied to extended vehicle bodies and helps to reduce weight while ensuring structural stability. Attached Figure Description

[0030] Figure 1 This is a cross-sectional schematic diagram of the lower side beam of a railway freight car according to the present invention.

[0031] Figure 2 This is a three-dimensional structural diagram of the lower side beam of a railway freight car according to the present invention.

[0032] Figure 3 This is a top view schematic diagram of the lower side beam composition of a railway freight car according to the present invention.

[0033] Figure 4 for Figure 2 Front view diagram (the horizontal part is horizontal).

[0034] Figure 5 This is a schematic diagram of the cross-section of the lower side beam in the prior art.

[0035] The annotations in the attached figures are explained as follows:

[0036] 211-Vertical part, 2111-First end, 2112-Middle section, 2113-Second end, 212-Horizontal part, 213-U-shaped part. Detailed Implementation

[0037] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0038] Example 1

[0039] Figure 1 This is a cross-sectional schematic diagram of the lower side beam of a railway freight car according to the present invention.

[0040] Figure 2 This is a three-dimensional structural diagram of the lower side beam of a railway freight car according to the present invention.

[0041] Figure 3 This is a top view schematic diagram of the lower side beam composition of a railway freight car according to the present invention. Figure 4 for Figure 2 Front view diagram (the horizontal part is horizontal). Figure 5 This is a schematic diagram of the cross-section of the lower side beam in the prior art.

[0042] like Figures 1 to 4 As shown, the lower side beam assembly of this utility model is used in railway freight cars, especially extended railway freight cars. The railway freight car includes multiple carriages. In this embodiment, each carriage includes two sets of lower side beam assemblies, which are symmetrically arranged around the center plane of the railway freight car perpendicular to its width direction. Each set of lower side beam assemblies includes a vertical portion 211, a horizontal portion 212, and a U-shaped portion 213.

[0043] The transverse portion 212 is flat and horizontally positioned. The vertical portion 211 is flat and vertically positioned. The length directions of both the transverse portion 212 and the vertical portion 211 are aligned with the length direction of the railway freight car. One side of the transverse portion 212 is connected to one side of the vertical portion 211 by an arc-shaped structure. The arc of the arc-shaped structure is greater than 85° and less than 95°, for example, 90°. The arc is the included angle formed between the two tangents at both ends of the transverse section of the arc-shaped structure.

[0044] The transverse cross-section of the U-shaped portion 213 is U-shaped. The length direction of the U-shaped portion 213 is the same as the length direction of the transverse portion 212. The U-shaped portion 213 is connected to the transverse portion 212 and is located below the transverse portion 212. The opening of the U-shape faces the transverse portion 212 and is closed by the transverse portion 212. The center plane of the U-shaped portion 213, perpendicular to the width direction, is perpendicular to the transverse portion 212. In the transverse cross-section of the transverse portion 212 and the U-shaped portion 213, the straight line containing the bottom of the U-shaped portion 213 is parallel to the straight line containing the bottom of the transverse portion 212.

[0045] In the transverse section of the vertical part 211, the end of the vertical part 211 away from the transverse part has an acute angle structure, and the angle α of the acute angle structure can be greater than 10° and less than 60°. This is beneficial for connection with other components and helps to reduce the weight.

[0046] like Figure 4As shown, the outer contour of the vertical portion 211 is an isosceles trapezoid, consisting of a first end 2111, a middle section 2112, and a second end 2113 connected in sequence. The first end 2111 and the second end 2113 are symmetrically arranged at both ends of the middle section 2112. The length of the middle section 2112 is the same as the length of the horizontal portion 212, and the bottom of the middle section 2112 is connected to one side of the horizontal portion 212 through an arc-shaped structure. The first end 2111 is a right-angled triangle, having a first right-angled side, a second right-angled side, and a first hypotenuse. The first right-angled side is collinear with the end of the middle section 2112 away from the horizontal portion 212, and the second right-angled side (… Figure 4 (Indicated by a dashed line) is connected to the horizontal portion 212. The acute angle formed between the first hypotenuse and the first right-angled side is greater than 10° and less than 50°. The length of the first right-angled side is greater than the width of the horizontal portion 212.

[0047] The depth of the groove in the U-shaped part 213 is greater than the thickness of the transverse part 212.

[0048] The width of the U-shaped portion 213 is greater than half the width of the horizontal portion 212 but less than the width of the horizontal portion 212. The thickness of the wall of the U-shaped portion 213 is less than the thickness of the horizontal portion 212. The thickness of the horizontal portion 212 is the same as the thickness of the middle section.

[0049] and Figure 5 Compared with the existing lower side beam composition, the improved lower side beam composition of this application can reduce the self-weight and increase the carrying capacity while ensuring structural stability, making it more suitable for the transportation of double-stack large-size containers.

[0050] Example 2

[0051] This embodiment provides a railway freight car comprising multiple carriages, each carriage including two sets of lower side beams as described in Embodiment 1, wherein the center plane of the railway freight car perpendicular to its width direction is defined as the first center plane. The two sets of lower side beams are symmetrically arranged around the first center plane.

[0052] This utility model is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this utility model fall within the scope of this utility model.

Claims

1. A lower side sill assembly for a railway freight car, comprising: The lower side beam assembly comprises a vertical part, a horizontal part and a U-shaped part; The length direction of the vertical part, the horizontal part and the U-shaped part is consistent with the length direction of the railway wagon; The vertical part is in the form of a flat plate and is arranged vertically; The horizontal part is in the form of a flat plate and is arranged horizontally; one side of the horizontal part is connected to one side of the vertical part through a circular arc structure, the radian of the circular arc structure is greater than 85° and less than 95°; the plane on which the upper surface of the horizontal part is located is lower than the plane on which the bottom surface of the vertical part is located; The U-shaped part is arranged below the horizontal part, the horizontal cross section of the U-shaped part is in the form of a U shape, the opening of the U shape faces the horizontal part and is closed by the horizontal part; the central plane of the U-shaped part, which is perpendicular to the width direction, is perpendicular to the horizontal part.

2. The underframe assembly of a railway wagon according to claim 1, characterized in that In the horizontal cross section of the vertical part, the end of the vertical part, which is away from the horizontal part, has an acute angle structure.

3. The underframe assembly of a railway wagon according to claim 1, characterized in that, The outer contour of the vertical part is in the form of an isosceles trapezoid, which comprises a first end part, a middle section and a second end part connected in sequence, the first end part and the second end part are symmetrically arranged, the outer contour of the middle section is in the form of a rectangle, the length of the middle section is the same as the length of the horizontal part, the bottom of the middle section is connected to one side of the horizontal part through the circular arc structure; the outer contour of the first end part is in the form of a right triangle, which has a first right angle side, a second right angle side and a first oblique side, the first right angle side is collinear with one side of the middle section, which is away from the horizontal part, and the second right angle side is connected to the horizontal part.

4. The underframe assembly of a railway wagon according to claim 3, c h a r a c t e r i s e d in that The acute angle formed between the first oblique side and the first right angle side is greater than 10° and less than 50°.

5. The underframe assembly of a railway wagon according to claim 4, characterized in that, The length of the first right angle side is greater than or equal to the width of the horizontal part.

6. The underframe assembly of a railway wagon according to claim 1, characterized in that, The depth of the U-shaped part is greater than the thickness of the horizontal part.

7. The underframe assembly of a railway wagon according to claim 6, characterized in that The width of the U-shaped part is greater than half of the width of the horizontal part and less than the width of the horizontal part.

8. The underframe assembly of claim 1, wherein: The thickness of the wall of the U-shaped part is less than the thickness of the horizontal part.

9. The underframe assembly of a railway wagon according to claim 3, c h a r a c t e r i s e d in that The thickness of the horizontal part is substantially the same as the thickness of the middle section.

10. A railway wagon comprising a plurality of carriages, characterised in that, At least one wagon comprises two groups of the lower side beam assemblies of the railway wagon according to any one of claims 1 to 9, wherein the central plane of the railway wagon in the length direction is defined as a first central plane; the two groups of lower side beam assemblies are symmetrically arranged with respect to the first central plane.

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