CA3128707C

CA3128707C - Side wall structure of freight car and railway freight car

Info

Publication number: CA3128707C
Application number: CA3128707A
Authority: CA
Inventors: Jian He; Junfeng Han; Heping Zheng
Original assignee: CRRC Qiqihar Rolling Stock Co Ltd
Current assignee: CRRC Qiqihar Rolling Stock Co Ltd
Priority date: 2020-03-20
Filing date: 2020-07-30
Publication date: 2024-01-09
Anticipated expiration: 2040-07-30
Also published as: WO2021184638A1; AU2020436790A1; AU2020436790B2; CA3128707A1

Abstract

A side wall structure (20) of freight car and a railway freight car. The side wall structure (20) includes a side wall plate (201). A gap (20a) penetrating an inner side and an outer side of the side wall plate is provided in each of two ends of an upper part of the side wall plate (201), an opening of the gap (20a) faces upwards. The side wall structure (20) further includes a reinforcing plate (203). The reinforcing plate (203) is provided on the inner side of the side wall plate (201), and is at least in correspondence with the position of the gap (20a), to seal the gap (20a) from the inner side of the side wall plate. A height of the side wall plate (201) is increased, which is basically higher than an end wall structure (30).

Description

SIDE WALL STRUCTURE OF FREIGHT CAR AND RAILWAY FREIGHT CAR
[0001] The application claims the priorities to Chinese patent application No.

202010202393.X titled "SIDE WALL STRUCTURE OF FREIGHT CAR AND
RAILWAY FREIGHT CAR", filed with the China National Intellectual Property Administration on March 20, 2020, and Chinese patent application No.
202020381516.6 titled "SIDE WALL STRUCTURE OF FREIGHT CAR AND RAILWAY FREIGHT
CAR", filed with the China National Intellectual Property Administration on March 20, 2020.
FIELD

[0002] The present application relates to the technical field of wagons, and in particular to a side wall structure of a freight car and a railway freight car.
BACKGROUND

[0003] A railway gondola car is divided into a general gondola car and a special gondola car. The general gondola car is mainly used for loading coal, ore, large equipment, boxed or bagged cargo; and a special gondola car refers to a special gondola car produced according to factors such as products and operating conditions. The special gondola car for the transportation of bulk cargo accounts for a relatively large proportion. This gondola car has the characteristics of heavy axles, light weight, heavy load, and long train marshalling.

[0004] Referring to FIG. 1 and FIG. 2, FIG. 1 is a schematic view of the structure of a freight car structure; and FIG. 2 is a left view of the freight car structure in FIG. 1.

[0005] The freight car structure mainly includes an underframe 01, an end wall structure 03, and a side wall structure 02. The underframe 01 is an all-steel welded structure, which mainly includes a middle beam, an end beam, a bolster beam, a cross beam, a longitudinal beam and a stainless steel floor. The side wall structure 02 mainly includes a side wall Date Recue/Date Received 2023-04-12 plate, an upper side beam, a sleeper post, a side post, an outer sleeper post, an outer side post, and a wear plate that is matched with the car dumper. The end wall structure 03 mainly includes an end wall plate, an upper end beam, a horizontal belt, an end post, and an internal reinforcing plate.

[0006] However, the above freight car structure is restricted by the car dumper and the leaky warehouse, the height of the car body structure cannot be increased, and the volume cannot be further increased.
SUMMARY

[0007] A side wall structure of a freight car is provided according to the present application, which includes a side wall plate, where a gap penetrating an inner side and an outer side of the side wall plate is provided in each of two ends of an upper part of the side wall plate, and an opening of the gap faces upwards; and the side wall structure further includes a reinforcing plate, where the reinforcing plate is provided on the inner side of the side wall plate, and is at least in correspondence with the position of the gap, to seal the gap from the inner side of the side wall plate.

[0008] In an embodiment, the side wall structure further includes an upper side beam, where the upper side beam includes a first low section, a high section, a second low section, a first connecting section that is transitionally connected with the first low section and the high section, and a second connecting section that is transitionally connected with the high section and the second low section; and

[0009] the side wall structure further includes a reinforcing beam, where the reinforcing beam is provided on an outer end of the first low section and an outer end of the second low section, a space between the first connecting section and the reinforcing beam corresponding to the first connecting section and a space between the second connecting section and the reinforcing beam corresponding to the second connecting section are in correspondence with the gaps at two ends of the side wall plate, respectively.

[0010] In an embodiment, the upper side beam and the reinforcing beam have channel steel structures.

[0011] In an embodiment, an upper part of a side edge of the side wall plate is in a slope Date Recue/Date Received 2021-08-20 shape, and a height of a bottom of the slope shape is in correspondence with a height of a bottom of the gap, and a side of the reinforcing beam facing the side edge of the side wall plate is in a slope shape suitable with the side wall plate.

[0012] In an embodiment, the reinforcing beam is in a trapezoidal structure with an open bottom, and the trapezoidal structure includes a first side in a slope shape, a flat top and a second side extending from top to bottom which are connected in sequence.

[0013] In an embodiment, the reinforcing plate includes a back plate and two side plates, and the back plate includes an upper back plate and a lower back plate that are connected with each other, the upper back plate and the side wall plate are arranged approximately in parallel, and the lower back plate is arranged obliquely with respect to the upper back plate, and a bottom side of the lower back plate is connected with the side wall plate, and the two sides of the back plate are respectively connected with the side wall plate through the side plates.

[0014] In an embodiment, the side wall plate is in an integral plate structure, and the side wall plate is a side plate in an arc shape.

[0015] In an embodiment, the side wall structure further includes a sleeper post and a side post, and the sleeper post and the side post each includes an inner part and an outer part, the outer part is located on the outer side of the side wall plate and the inner part is located in the inner side of the side wall plate.

[0016] In an embodiment, the sleeper post and the side post are connected with the upper side beam by welding.

[0017] A railway freight car is further provided according to the present application, which includes an end wall structure and a side wall structure, where the side wall structure is the side wall structure of the freight car according to the above any one, and the bottom of the gap of the side wall structure is approximately a same height as a top of the end wall structure.

[0018] In an embodiment, the railway freight car is a gondola car.

[0019] Compared with the present side wall structure, a height of the side wall plate is increased according to the side wall structure in the present application, which is basically higher than the height of the end wall structure, so that the volume of the freight car can Date Recue/Date Received 2021-08-20 be increased without increasing the weight of the car body, and the end wall structure is not heightened, then it will not interfere with the leaky warehouse. In addition, under the premise of increasing the height of the side wall plates, gaps are reserved at two ends of the side wall plate. The bottom of each gap is flush with the end wall structure, that is, the bottom of the gap and the end wall structure still maintain a considerable height, and the position of the gap is in correspondence with the indenter of the car dumper, so that the car dumper may still operate, and is not affected by the increase in height. A
reinforcing plate is arranged on the inner side of the side wall plate at the position corresponding to the gap. It may prevent the cargo from leaking out from the position of the gap, and increase the strength at the position of the gap.
BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a schematic view showing the structure of a freight car;

[0021] FIG. 2 is a left view of the freight car in FIG. 1;

[0022] FIG. 3 is a schematic view showing the structure of a freight car according to an embodiment of the present application;

[0023] FIG. 4 is a front view of the freight car in FIG. 3;

[0024] FIG. 5 is a left view of the freight car in FIG. 3;

[0025] FIG. 6 is a schematic view of the side wall structure in FIG. 3;

[0026] FIG. 7 is a left view of the freight car in FIG. 6; and

[0027] FIG. 8 is a rear view of the side wall structure in FIG. 6.

[0028] Reference numerals in FIG. 1 to FIG. 8:

[0029] 01 underframe structure, 02 side wall structure,

[0030] 03 end wall structure;

[0031] 10 underframe, 20 side wall structure,

[0032] 20a gap, 201 side wall plate, Date Recue/Date Received 2021-08-20

[0033] 202 reinforcing beam, 203 reinforcing plate,

[0034] 204 upper side beam, 204a high section,

[0035] 204b first low section, 204c first connecting section,

[0036] 204d second connecting section, 204e second low section;

[0037] 205 upper side post, 206 lower side post,

[0038] 207 sleeper post, 30 end wall structure.
DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to provide those skilled in the art a better understanding of the solutions of the present application, the present application is described hereinafter in further detail in conjunction with the drawings and embodiments.

[0040] Referring to FIG. 3 to FIG. 6, FIG. 3 is a schematic view showing the structure of a freight car according to an embodiment of the present application; FIG. 4 is a front view of the freight car in FIG. 3; and FIG. 5 is a left view of the freight car in FIG. 3.

[0041] As shown in FIG. 3 to FIG. 5, the freight car in this embodiment includes a side wall structure 20 and an end wall structure 30. The side wall structures 20 on both sides and the end wall structures 30 at two ends are enclosed to form a car body of the freight car, and the undethame structure 10 is provided on the bottom of the freight car, and the side wall structure 20 is transitionally connected with the bottom plate of the underframe structure 10 through a connecting plate. The above freight car may be a gondola freight car, that is, without a cover, of course, a structure such as a tarp may be provided for the purpose of covering. It can be seen from FIG. 3 to FIG. 5 that the side wall structure 20 and the end wall structure 30 in this embodiment are not designed with equal height. The height of the side wall structure 20 is basically higher than the height of the end wall structure 30; however, the overall height of the side wall structure 20 is not higher than the overall height of the end wall structure 30.

[0042] Referring to FIG. 6 to FIG. 8, FIG. 6 is a schematic view of the side wall structure 20 in FIG. 3; FIG. 7 is a left view of the side wall structure in FIG. 6; and FIG. 8 is a rear view of the side wall structure in FIG. 6. It should be noted that, in order to Date Recue/Date Received 2021-08-20 facilitate the understanding of the structures of the upper side beam 204 and the reinforcing beam 202, the upper side beam 204 is shown in black and the reinforcing beam 202 is shown in gray, which does not mean that the color of the structure must be di stingui shed.

[0043] The side wall structure 20 in this embodiment includes a side wall plate 201. The side wall plate 201 may be an integral plate structure, so as to ensure strength and integrity. Of course, in the situation that the strength is enough or the length is relatively long, it may also be a splicing plate. In this embodiment, the side wall plate 201 is designed to be heightened relative to the end wall structure 30. A gap 20a penetrating the inner side and the outer side of the side wall plate 201 is provided in each of two ends of the upper part of the heightened side wall plate 201, and the opening of the gap 20a faces upward, that is, two notches are provided in the upper edge of the side wall plate 201.

[0044] In addition, the side wall structure 20 further includes a reinforcing plate 203, which is provided on the inner side of the side wall plate 201 and at least in correspondence with the position of the gap 20a to seal the gap 20a from the inner side of the side wall structure 20. In FIG. 3 and FIG. 6, except for sealing the gap 20a, the reinforcing plate 203 further extends downward for a certain distance. The dotted line below the gap 20a is a part of the reinforcing plate 203, so the reinforcing plate 203 has a larger area, and the reinforcing plate 203 may be welded to the side wall plate 201, so as to ensure the reinforcing effect of the reinforcing plate 203. Compared with the present side wall structure 20, the height of the side wall plate 201 is increased according to the above side wall structure 20, which is basically higher than the height of the end wall structure 30, so that the volume of the freight car may be increased without increasing the weight of the car body, and the end wall structure 30 is not heightened, and then it will not interfere with the leaky warehouse. A railway wagon generally can tow multiple freight cars. For example, some models of the railway wagon may reach 250 freight cars. In this way, the increase in the volume of a single freight car may greatly increase the cargo capacity of the whole freight car.

[0045] In addition, under the premise of increasing the height of the side wall plate 201, gaps 20a are reserved at two ends of the side wall plate 201, and the bottom of the gap 20a is flush with the end wall structure 30, that is, the bottom of the gap 20a and the end Date Recue/Date Received 2021-08-20 wall structure 30 still maintain a considerable height, and the position of the gap 20a is in correspondence with the indenter of the car dumper, so that the car dumper may still operate, and is not affected by the increase in height. A reinforcing plate 203 is arranged on the inner side of the side wall plate at the position corresponding to the gap. It may prevent the cargo from leaking out from the position of the gap, and also increase the strength at the position of the gap.

[0046] The reinforcing plate 203 is not limited to a flat plate structure. As shown in FIG.
3, the reinforcing plate 203 is a three-dimensional structure, including a back plate and two side plates 203c. The back plate faces the gap 20a, and includes an upper back plate 203a and a lower back plate 203b that are connected up and down. The bottom edge of the lower back plate 203b is connected with the inner side of the side wall plate 201, the upper back plate 203a may be arranged approximately parallel to the side wall plate 201, and the lower back plate 203b is arranged obliquely with respect to the upper back plate 203a, then the back plate is concave relative to the side wall plate 201, and the two sides of the back plate are respectively connected with the side wall plate 201 by a side plate 203c. With this arrangement, there is a larger lateral space at the position of the gap 20a, thereby providing a larger space and facilitating the operation of the car dumper.

[0047] The side wall structure 20 further includes an upper side beam 204 in an n-shaped projection, which is shown in black in FIG. 6. For ease of description, the upper side beam 204 is defined in sections. The upper side beam 204 includes a first low section 204b, a high section 204a, a second low section 204e, a first connecting section 204c that is transitionally connected with the first low section 204b and the high section 204a, and a second connecting section 204d that is transitionally connected with the high section 204a and the second low section 204e, the first connecting section 204c and the second connecting section 204d may extend from top to bottom along the outer surface of the side wall plate 201, or may be inclined at a certain angle. As shown in FIG.
6, from left to right, the first low section 204b, the first connecting section 204c, the high section 204a, the second connecting section 204d, and the second low section 204e are connected in sequence, and each part may be a different part of an integral structure, or may be a combination of separate structures to foint the upper side beam 204, for example, by welding as a whole. The upper side beam 204 may be a channel steel structure.
The upper Date Recue/Date Received 2021-08-20 side beam 204 may be fixed to the side wail plate 201 by welding.
Specifically, the upper side beam 204 may be welded to the outer side of the side wall plate 201.

[0048] As shown in FIG. 6, the heights of the first low section 204b and the second low section 204e are equal, and are substantially flush with the bottom of the gap 20a, and the high section 204a is substantially flush with the upper edge of the side wall plate 201. The side wall structure 20 further includes a reinforcing beam 202. The reinforcing beam 202 is provided on an outer end of the first low section 204b and an outer end of the second low section 204e, a space between the first connecting section 204c and the reinforcing beam 202 corresponding to the first connecting section and a space between the second connecting section 204d and the reinforcing beam 202 corresponding to the second connecting section are two openings, which are in correspondence with the gaps 20a at two ends of the side wall plate 201, respectively. That is, when the beam structure is welded on the outer side of the side wall plate 201, the opening position corresponding to each gap 20a must still be reserved to ensure the operation of the indenter of the car dumper. The reinforcing beam 202 may be a channel steel structure.

[0049] In FIG. 6, the reinforcing beam 202 is arranged in a trapezoidal shape with an open bottom. The side wall plate 201 is provided with a beam structure of the upper side beam 204 and the reinforcing beam 202, which may increase the strength of the whole side wall structure 20.

[0050] Referring to FIG. 6, the upper part of the side edge of the side wall plate 201 is in a slope shape, and a height of a bottom of the slope shape is in correspondence with a height of a bottom of the gap 20a, and a side of the reinforcing beam 202 facing the side edge of the side wall plate 201 is in a slope shape suitable with the side wall plate. The reinforcing beam 202 is in a trapezoidal shape, including a first side in a slope shape, a flat top, and a second side extending from top to bottom, which are shown in gray in FIG.
6. The side wall plate 201 and the end wall structure 30 are not equal in height. The side edge of the side wall plate 201 is the position where the side wall plate 201 is connected with the end wall structure 30. When cargo is loaded, stress concentration is likely to occur at the top of the connection position. Starting from the height higher than the end wall structure 30, the side edge of the side wall plate 201 and the reinforcing beam 202 corresponding to the side wall plate 201 are set in a slope shape, which helps to disperse Date Recue/Date Received 2021-08-20 stress, avoid stress concentration, and improve strength.

[0051] As shown in FIG. 7, the side wall plate 201 may be a side plate in an arc shape, which may increase the volume and have certain strength. In addition, the side wall structure 20 may further include a sleeper post and a side post extending from top to bottom. The sleeper post and the side post each include an inner part and an outer part.
The outer side post 205 and the inner side post 206 of the side post, and the outer sleeper post 207 and inner sleeper post 208 of the sleeper post are shown in FIG. 3.
In FIG. 6, the sleeper post is in correspondence with the position of the gap 20a. The above upper side beam 204 may be fixed to the side wall plate 201, the sleeper post and the side post by welding.

[0052] The above embodiments are only preferred embodiments of the present application. It should be noted that, for those skilled in the art, other improvements and modifications may be further made without departing from the principle of the present application, and these improvements and modifications should also be deemed as falling .. into the protection scope of the present application.

Date Recue/Date Received 2021-08-20

Claims

1. A side wall structure of a freight car, comprising:
a side wall plate (201), wherein a gap (20a) penetrating an inner side and an outer side of the side wall plate (201) is provided in each of two ends of an upper part of the side wall plate (201), and an opening of the gap (20a) faces upwards; and the side wall structure (20) further comprising:
a reinforcing plate (203), wherein the reinforcing plate (203) is provided on the inner side of the side wall plate (201), and is at least in correspondence with the position of the gap (20a), to seal the gap (20a) from the inner side of the side wall plate (201), wherein the side wall structure of the freight car further comprises an upper side beam (204), wherein the upper side beam (204) comprises a first low section (204b), a high section (204a), a second low section (204e), a first connecting section (204c) that is transitionally connected with the first low section (204b) and the high section (204a), and a second connecting section (204d) that is transitionally connected with the high section (204a) and the second low section (204e); and the side wall structure further comprising a reinforcing beam (202), wherein the reinforcing beam (202) is provided on an outer end of the first low section (204b) and an outer end of the second low section (204e), a space between the first connecting section (204c) and the reinforcing beam (202) corresponding to the first connecting section and a space between the second connecting section (204d) and the reinforcing beam (202) corresponding to the second connecting section are in correspondence with the gaps (20a) at the two ends of the side wall plate (201), respectively.

2. The side wall structure of the freight car according to claim 1, wherein the upper side beam (204) and the reinforcing beam (202) have channel steel structures.

3. The side wall structure of the freight car according to claim 1, wherein an upper part of a side edge of the side wall plate (201) is in a slope shape, and a height of a bottom of the slope shape is in correspondence with a height of a bottom of the gap (20a), and a side of the reinforcing beam (202) facing the side edge of the side wall plate (201) is in a slope shape suitable with the side wall plate.

4. The side wall structure of the freight car according to claim 2, wherein the reinforcing beam (202) is in a trapezoidal structure with an open bottom, and the trapezoidal structure comprises a first side in a slope shape, a flat top, and a second side extending from top to bottom that are connected in sequence.

5. The side wall structure of the freight car according to claim 1, wherein the reinforcing plate (203) comprises a back plate and two side plates (203c), and the back plate comprises an upper back plate (203a) and a lower back plate (203b) that are connected with each other, the upper back plate (203a) and the side wall plate (201) are arranged approximately in parallel, and the lower back plate (203b) is arranged obliquely with respect to the upper back plate (203a), and a bottom side of the lower back plate (203b) is connected with the side wall plate (201), and the two sides of the back plate are respectively connected with the side wall plate (201) through the side plates (203c).

6. The side wall structure of the freight car according to any one of claims 1 to 5, wherein the side wall plate (201) is in an integral plate structure, and the side wall plate (201) is a side plate in an arc shape.

7. The side wall structure of the freight car according to claim 6, wherein the side wall structure further comprises a sleeper post and a side post, and the sleeper post and the side post each comprises an inner part and an outer part, the outer part is located on the outer side of the side wall plate (201) and the inner part is located in the inner side of the side wall plate (201).

8. The side wall structure of the freight car according to claim 7, wherein the sleeper post and the side post are connected with the upper side beam (204) by welding.

9. A railway freight car, comprising an end wall structure (30) and a side wall structure (20), wherein the side wall structure (20) is the side wall structure (20) of the freight car according to any one of claims 1 to 8, and the bottom of the gap (20a) of the side wall structure (20) is approximately a same height as a top of the end wall structure (30).