Railway grain hopper car top cover and railway grain hopper car

Abstract

The application discloses a railway grain hopper car top cover and a railway grain hopper car, and relates to the technical field of railway transportation equipment. The railway grain hopper car top cover comprises a top cover body, the top cover body comprises a first top cover and a second top cover which are arranged side by side along the width direction of the top cover body, the first top cover and the second top cover are both hollow thin-walled box type structures extending along the length direction of the top cover body and are welded and connected between each other, the two ends of the first top cover and the second top cover are connected through end plates respectively, and the bottom of the first top cover and the second top cover is connected with a top cover support. The railway grain hopper car top cover provided by the application can significantly reduce the self weight of the top cover by arranging the first top cover and the second top cover as hollow thin-walled box type structures, simultaneously reduce the weld length of the top cover and the welding amount in the manufacturing process, reduce welding deformation, and improve the flatness and sealing effect of the top cover.

Description

Technical Field

[0001] This application relates to the field of railway transportation equipment technology, specifically to a top cover for a railway grain hopper car and a railway grain hopper car. Background Technology

[0002] Railway grain hopper cars are railway vehicles specifically designed for transporting bulk grain. They feature a loading hatch at the top and a funnel-shaped lower body to facilitate automatic grain discharge. Compared to traditional boxcars and open wagons, these vehicles effectively shorten loading and unloading time, accelerate vehicle turnaround, improve working conditions, and reduce transportation costs.

[0003] In the design of railway grain hopper cars, a top cover device is installed at the loading port on the top of the car body. This top cover device can be opened and closed as needed to protect the grain from rain, snow, dust, and other corrosions during transportation. Existing top cover devices are usually made of steel profiles welded together with a top cover plate. The top cover plate is made of multiple steel plates welded together and has multiple raised ribs pressed on it to increase the rigidity of the top cover.

[0004] However, these all-steel welded top covers are mostly grid-shaped, heavy, require a lot of welding, and are difficult to control in terms of welding deformation, which can easily lead to poor flatness and unsatisfactory sealing effect. Summary of the Invention

[0005] The purpose of this application is to provide a railway grain hopper car top cover and a railway grain hopper car, which solves the problems of the existing railway grain hopper car top cover having a large total weight, a large amount of welding, poor flatness, and poor sealing effect.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] In a first aspect, a railway grain hopper car top cover is provided, comprising a top cover body, wherein the top cover body includes a first top cover and a second top cover arranged side by side along its width direction, the first top cover and the second top cover are both hollow thin-walled box-shaped structures extending along the length direction of the top cover body and are welded together, the two ends of the first top cover and the second top cover are respectively connected by end plates, and the bottom of the first top cover and the second top cover are both connected to a top cover support.

[0008] Furthermore, both the first and second top covers are made of extruded aluminum alloy profiles and have several reinforcing ribs inside.

[0009] Furthermore, the bottom of the first top cover on the side away from the second top cover is provided with a first side plate extending downward, and the bottom of the second top cover on the side away from the first top cover is provided with a second side plate extending downward.

[0010] Furthermore, the welding position between the first top cover and the second top cover has a thickened cross-section structure.

[0011] Furthermore, both the first and second top covers are connected to the top cover support via support bolts, and the first and second top covers are provided with key-shaped holes that mate with the support bolts.

[0012] Furthermore, the bottom ends of the first top cover and the second top cover are connected by a partition, and the partition is connected with a longitudinal stop.

[0013] Furthermore, the partition is connected to the end plate via a support plate.

[0014] Furthermore, the longitudinal stop includes an adjusting pad and a longitudinal baffle sequentially disposed inside the partition, a fastening bolt sequentially passing through the longitudinal baffle, the adjusting pad and the partition, and a fastening nut connected to the end of the fastening bolt, and the longitudinal baffle is provided with a groove for accommodating the head of the fastening bolt.

[0015] Furthermore, the inner side of the longitudinal baffle is an inclined surface that slopes downward toward the adjusting pad.

[0016] Secondly, a railway grain hopper car is provided, including the railway grain hopper car top cover provided in the first aspect.

[0017] The beneficial effects of this application are:

[0018] 1. The railway grain hopper car top cover provided in this application embodiment includes a top cover body welded together from a first top cover and a second top cover. By setting the first top cover and the second top cover as a hollow thin-walled box-shaped structure, the self-weight of the top cover can be significantly reduced, while reducing the weld length of the top cover and the amount of welding during the manufacturing process, reducing welding deformation, and improving the flatness and sealing effect of the top cover.

[0019] 2. The railway grain hopper car top cover provided in this application embodiment is provided with an end plate to connect the first top cover and the second top cover together, so as to increase the torsional resistance of the entire top cover. It is also used to seal the ends of the first top cover and the second top cover to prevent rainwater from entering the cavity of the first top cover and the second top cover.

[0020] 3. The railway grain hopper car roof provided in this application embodiment is formed by extruding the first roof and the second roof with aluminum alloy profiles. Since the density of aluminum alloy profiles is much lower than that of steel, the first and second roofs with hollow thin-walled box-shaped structures are lighter in weight while achieving the same structural strength, which helps to reduce the weight of the whole car, improve fuel efficiency and reduce energy consumption. Extrusion molding of aluminum alloy profiles can reduce the processing of large deformations. Compared with steel roofs, fewer components and joints are required, which helps to control the deformation of the roof during the manufacturing process and improves the flatness and sealing effect of the roof.

[0021] 4. The railway grain hopper car roof cover provided in this application embodiment, by setting a first side plate and a second side plate, is used to form rain eaves on both sides of the roof cover, thereby making the entire roof cover into a hat-shaped structure, so that the sealing strip of the loading port on the car roof is completely sunk into the hat, improving the sealing effect.

[0022] 5. The railway grain hopper car top cover provided in this application embodiment can achieve a detachable connection between the top cover and the top cover support by setting key-shaped holes on the first top cover and the second top cover to cooperate with the support bolts, thereby improving the interchangeability of the top cover and reducing the manufacturing difficulty.

[0023] 6. The railway grain hopper car top cover provided in this application embodiment is positioned by setting longitudinal stops to cooperate with the stops on the car top, thereby preventing the top cover from moving longitudinally. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a front view of the railway grain hopper car roof provided in an embodiment of this application;

[0026] Figure 2 This is a bottom view of the top cover of the railway grain hopper car provided in the embodiment of this application;

[0027] Figure 3 yes Figure 1 Enlarged view of section A in the middle;

[0028] Figure 4 yes Figure 2 Enlarged view of section B in the middle;

[0029] Figure 5 This is a cross-sectional schematic diagram of the railway grain hopper car top cover provided in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the cross-section of the first top cover;

[0031] Figure 7 This is a schematic diagram of the cross-section of the second top cover;

[0032] Figure 8 This is a schematic diagram of the keyhole structure;

[0033] Figure 9 It is a three-dimensional diagram of the longitudinal stop;

[0034] Figure 10 It is a three-dimensional diagram of the top cover support;

[0035] Figure 11 This is a front view of the railway grain hopper car provided in the embodiments of this application;

[0036] Figure 12 This is a diagram showing the state when the top cover is closed;

[0037] Figure 13 This is a diagram showing the top cover when it is open.

[0038] Figure label:

[0039] 1-Car body;

[0040] 2- Loading port;

[0041] 3-Opening and closing mechanism;

[0042] 4-Top cover;

[0043] 10 - Top cover body;

[0044] 101 - First Top Cover;

[0045] 102 - Second Top Cover;

[0046] 103-End plate;

[0047] 104 - First side plate;

[0048] 105 - Second side plate;

[0049] 106-Keyhole;

[0050] 107-Partition;

[0051] 108 - Support plate;

[0052] 20 - Top cover support;

[0053] 201 - Support bolts;

[0054] 202-Fixed base;

[0055] 203 - Bushing;

[0056] 30 - Longitudinal stop;

[0057] 301 - Adjusting pad;

[0058] 302 - Longitudinal baffle;

[0059] 3021 - Groove;

[0060] 303 - Fastening bolts;

[0061] 304 - Fastening nut. Detailed Implementation

[0062] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0063] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] Railway grain hopper cars are railway vehicles specifically designed for transporting bulk grain. In their design, a top cover is installed at the loading port on the top of the car body. This top cover can be opened and closed as needed to protect the grain from rain, snow, and dust during transportation. Existing top cover devices are typically constructed by welding steel profiles and a top cover plate. The top cover plate is made of multiple welded steel plates and reinforced with ribs to increase its rigidity. However, these all-steel welded top covers are often mesh-like, heavy, require extensive welding, and are difficult to control in terms of welding deformation, easily resulting in poor flatness and inadequate sealing.

[0066] Based on this, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 This application provides a railway grain hopper car top cover, including a top cover body 10. The top cover body 10 includes a first top cover 101 and a second top cover 102 arranged side by side along its width direction. The first top cover 101 and the second top cover 102 are both hollow thin-walled box-shaped structures extending along the length direction of the top cover body 10 and are welded together. The two ends of the first top cover 101 and the second top cover 102 are respectively connected by end plates 103. The bottom of the first top cover 101 and the second top cover 102 are both connected to a top cover support 20.

[0067] For example, the top cover body 10 is a rectangular structure, mainly including a first top cover 101, a second top cover 102, and two end plates 103. Both the first top cover 101 and the second top cover 102 are hollow thin-walled box-shaped structures extending along the length of the top cover body 10. Due to their hollow nature, the hollow thin-walled box-shaped structure can significantly reduce the self-weight of the structure compared to a solid steel plate structure. Furthermore, due to its prefabricated nature, its processing quality can be guaranteed. The first top cover 101 and the second top cover 102 are arranged side-by-side along the width direction of the top cover body 10 and are welded together. This allows for only two vertically arranged longitudinal seams between the first top cover 101 and the second top cover 102. These two longitudinal seams can be automatically welded, reducing welding deformation, lowering the labor intensity of the operator, and ensuring the flatness requirements of the top cover. The two end plates 103 are respectively located at both ends of the top cover body 10 along its length direction, and the end plates 103 are fixedly connected to the ends of both the first top cover 101 and the second top cover 102. The top cover support 20 includes two sets, one set of which is located at the bottom of the first top cover 101 and the other set of which is located at the bottom of the second top cover 102. The two sets of top cover supports 20 are respectively connected to the drive shaft of the opening and closing mechanism at the loading port on the top of the vehicle body to realize the installation of the top cover and realize the opening and closing operation of the top cover through the opening and closing mechanism.

[0068] The railway grain hopper car top cover provided in this application embodiment, by setting a top cover body 10 formed by welding a first top cover 101 and a second top cover 102, and setting the first top cover 101 and the second top cover 102 as a hollow thin-walled box structure, can significantly reduce the self-weight of the entire top cover, while reducing the weld length of the top cover and the amount of welding during the manufacturing process, reducing welding deformation, and improving the flatness and sealing effect of the top cover. By setting an end plate 103, it is used to connect the first top cover 101 and the second top cover 102 together to increase the torsional resistance of the entire top cover, and also to seal the ends of the first top cover 101 and the second top cover 102 to prevent rainwater from entering the cavity of the first top cover 101 and the second top cover 102.

[0069] In some embodiments, see Figure 5 , Figure 6 , Figure 7 Both the first top cover 101 and the second top cover 102 are made of extruded aluminum alloy profiles. For example, the inner cavities of the first top cover 101 and the second top cover 102 are provided with a plurality of reinforcing ribs, the number of which is determined according to the width of the top cover. The wider the top cover, the more reinforcing ribs are required.

[0070] The railway grain hopper car roof provided in this application embodiment is formed by extruding the first roof 101 and the second roof 102 from aluminum alloy profiles. Since the density of aluminum alloy profiles is much lower than that of steel, the hollow thin-walled box-shaped structure of the first roof 101 and the second roof 102 achieves the same structural strength while being lighter in weight, which helps to reduce the overall weight of the car, improve fuel efficiency, and reduce energy consumption. Extrusion molding of aluminum alloy profiles can reduce the amount of large deformation processing, requiring fewer components and joints compared to steel roofs, which helps to control the amount of deformation during the manufacturing process, improves the flatness and sealing effect of the roof. Aluminum alloy profiles also have good corrosion resistance and are not easy to rust even when exposed to air for a long time, reducing maintenance costs and extending service life.

[0071] In some embodiments, see Figure 5 , Figure 6 , Figure 7 The bottom of the first top cover 101 on the side away from the second top cover 102 is provided with a downwardly extending first side plate 104, and the bottom of the second top cover 102 on the side away from the first top cover 101 is provided with a downwardly extending second side plate 105.

[0072] For example, the first top cover 101 and the first side plate 104 are integrally formed, and the second top cover 102 and the second side plate 105 are integrally formed; the first side plate 104 is inclined outward from top to bottom along the direction away from the second side plate 105, and the second side plate 105 is inclined outward from top to bottom along the direction away from the first side plate 104, thereby forming a figure-eight structure between the first side plate 104 and the second side plate 105.

[0073] The railway grain hopper car roof cover provided in this application embodiment, by setting a first side plate 104 and a second side plate 105, is used to form rain eaves on both sides of the roof cover, thereby making the entire roof cover into a hat-shaped structure, so that the sealing strip of the loading port on the car roof is completely sunk into the hat, preventing rainwater from entering the loading port and improving the sealing effect of the roof cover.

[0074] In some embodiments, see Figure 5 , Figure 6 , Figure 7 The welding position between the first top cover 101 and the second top cover 102 has a thickened cross-section structure. Using a thickened cross-section structure at the welding position facilitates weld formation and reduces welding deformation. Furthermore, the bottom of the first top cover 101 and the connection position with the top cover support 20 both have thickened cross-section structures. Using thickened cross-section structures increases connection strength and improves the reliability and stability of the connection between the top cover support 20 and the top cover.

[0075] In some embodiments, see Figure 4 , Figure 8 The first top cover 101 and the second top cover 102 are both connected to the top cover support 20 by support bolts 201. The first top cover 101 and the second top cover 102 are provided with key-shaped holes 106 that cooperate with the support bolts 201.

[0076] For example, see Figure 10 The top cover support 20 includes a fixed base 202 and a bushing 203 mounted on the fixed base 202. The fixed base 202 is connected to the first top cover 101 or the second top cover 102 via support bolts 201. The bushing 203 is used to connect to the drive shaft of the opening and closing mechanism. See also Figure 8 The key-shaped hole 106 includes a large hole and a small hole communicating with the large hole. The large hole is for the head of the support bolt 201 to pass through, and the small hole is for the shank of the support bolt 201 to pass through. In use, first insert the head of the support bolt 201 into the large hole from bottom to top, then move the shank of the support bolt 201 to the small hole so that the head of the support bolt 201 is locked inside the top cover. Then, install the fixing seat 202 on the support bolt 201, and screw a nut on the lower end of the support bolt 201. After tightening the nut, the connection between the top cover support 20 and the top cover is achieved.

[0077] The railway grain hopper car top cover provided in this application embodiment can achieve a detachable connection between the top cover and the top cover support 20 by providing key-shaped holes 106 on the first top cover 101 and the second top cover 102 that cooperate with the support bolts 201, thereby improving the interchangeability of the top cover and reducing the manufacturing difficulty.

[0078] In some embodiments, see Figure 3 , Figure 4 The bottom ends of the first top cover 101 and the second top cover 102 are connected by a partition 107, and a longitudinal stop 30 is connected to the partition 107.

[0079] For example, the partition 107 extends from one side of the top cover body 10 to the other side along the width direction of the top cover body 10. The upper end of the partition 107 is fixedly connected to both the first top cover 101 and the second top cover 102. A longitudinal stop 30 is fixed to the inner side of the partition 107, which refers to the side located between the two partitions 107.

[0080] The railway grain hopper car roof cover provided in this application embodiment has a partition 107 for connecting the first roof cover 101 and the second roof cover 102 together to increase the lateral connection strength between the two and at the same time play a role in preventing rainwater from entering the inside of the car body; and a longitudinal stop 30 is provided for cooperating with the stop member on the roof to achieve positioning and prevent the roof cover from moving longitudinally.

[0081] In some embodiments, see Figure 3 , Figure 4 The partition 107 is connected to the end plate 103 via a support plate 108. For example, the support plate 108 includes at least two.

[0082] The railway grain hopper car top cover provided in this application embodiment is reinforced by setting a support plate 108 to connect the partition 107 and the end plate 103, thereby increasing the partition 107's resistance to longitudinal impact on the longitudinal stop 30 when the top cover is closed, and improving the overall reliability of the top cover.

[0083] In some embodiments, see Figure 3 , Figure 4 , Figure 9 The longitudinal stop 30 includes an adjusting pad 301 and a longitudinal baffle 302 arranged sequentially inside the partition 107, a fastening bolt 303 passing sequentially through the longitudinal baffle 302, the adjusting pad 301 and the partition 107, and a fastening nut 304 connected to the end of the fastening bolt 303. The longitudinal baffle 302 is provided with a groove 3021 for accommodating the head of the fastening bolt 303.

[0084] For example, the longitudinal baffle 302 is a rubber baffle, and the inner surface of the longitudinal baffle 302 is an inclined surface that slopes downward toward the adjusting pad 301. Here, the inner surface of the longitudinal baffle 302 refers to the side located between two longitudinal baffles 302.

[0085] The railway grain hopper car top cover provided in this application embodiment can adjust the position of the longitudinal baffle 302 by replacing the adjusting pads 301 of different thicknesses to adapt to different installation size requirements; by setting the groove 3021, it is used to accommodate the head of the fastening bolt 303, so as to avoid the head of the fastening bolt 303 protruding from the longitudinal baffle 302 and affecting its operation.

[0086] See Figure 11 , Figure 12 , Figure 13 This application provides a railway grain hopper car, including a car body 1, a loading port 2 on the top of the car body 1, an opening and closing mechanism 3 at the loading port 2, the opening and closing mechanism 3 being connected to a top cover 4, the top cover 4 being the railway grain hopper car top cover provided in the above embodiment.

[0087] See Figure 12 The top cover 4 is sealed onto the loading port 2 by the opening and closing mechanism 3, thereby closing the loading port 2; see also Figure 13 The top cover 4 is positioned on one side of the loading port 2 by the opening and closing mechanism 3, so as to open the loading port 2.

[0088] The railway grain hopper car provided in this application embodiment has a top cover with a hollow thin-walled box-shaped structure, which can significantly reduce the weight of the top cover, while reducing the weld length of the top cover and the amount of welding during the manufacturing process, reducing welding deformation, and improving the flatness and sealing effect of the top cover.

[0089] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A roof cover for a railway grain hopper car, characterized in that, The system includes a top cover body (10), which includes a first top cover (101) and a second top cover (102) arranged side by side along its width direction. The first top cover (101) and the second top cover (102) are both hollow thin-walled box-shaped structures extending along the length direction of the top cover body (10) and are welded together. The two ends of the first top cover (101) and the second top cover (102) are respectively connected by end plates (103). The bottom of the first top cover (101) and the second top cover (102) are both connected to a top cover support (20). The bottom of the first top cover (101) on the side away from the second top cover (102) is provided with a downwardly extending first side plate (104), and the bottom of the second top cover (102) on the side away from the first top cover (101) is provided with a downwardly extending second side plate (105). The first top cover (101) and the second top cover (102) are both connected to the top cover support (20) by support bolts (201). The first top cover (101) and the second top cover (102) are provided with key-shaped holes (106) that cooperate with the support bolts (201). The bottom ends of the first top cover (101) and the second top cover (102) are connected by a partition (107), and a longitudinal stop (30) is connected to the partition (107). The partition (107) is connected to the end plate (103) via a support plate (108).

2. The railway grain hopper car top cover according to claim 1, characterized in that, Both the first top cover (101) and the second top cover (102) are made of aluminum alloy profiles by extrusion molding and have several reinforcing ribs inside.

3. The railway grain hopper car top cover according to claim 1, characterized in that, The welding position between the first top cover (101) and the second top cover (102) is a thickened cross-section structure.

4. The railway grain hopper car roof cover according to claim 1, characterized in that, The longitudinal stop (30) includes an adjusting pad (301) and a longitudinal baffle (302) arranged sequentially inside the partition (107), a fastening bolt (303) passing sequentially through the longitudinal baffle (302), the adjusting pad (301) and the partition (107), and a fastening nut (304) connected to the end of the fastening bolt (303). The longitudinal baffle (302) is provided with a groove (3021) for accommodating the head of the fastening bolt (303).

5. The railway grain hopper car roof cover according to claim 4, characterized in that, The inner side of the longitudinal baffle (302) is an inclined surface that slopes downward toward the adjusting pad (301).

6. A railway grain hopper car, characterized in that, The railway grain hopper car top cover as described in any one of claims 1 to 5.

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