Railway grain hopper car top cover and railway grain hopper car

Abstract

The invention 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 top cover of the railway grain hopper car comprises a top cover body, the top cover body comprises a first top cover body and a second top cover body which are arranged side by side in the width direction of the top cover body, and the first top cover body and the second top cover body are each of a hollow thin-wall box type structure extending in the length direction of the top cover body and are connected in a welded mode. The two ends of the first top cover and the second top cover are connected through end plates, and the bottoms of the first top cover and the second top cover are connected with top cover supports. According to the top cover of the railway grain hopper car, the first top cover and the second top cover are arranged to be of the hollow thin-wall box type structure, the dead weight of the top cover can be obviously reduced, meanwhile, the length of a welding seam of the top cover and the welding amount in the manufacturing process are reduced, welding deformation is reduced, and the planeness and the sealing effect of the top cover are improved.

Description

Technical Field

[0001] The present application relates to the technical field of railway transportation equipment, and in particular to a railway grain hopper car top cover and a railway grain hopper car. Background Art

[0002] Railway grain hopper cars are specially designed for transporting bulk grain. The upper part of the car body is equipped with a loading port, and the lower part of the car body is funnel-shaped to facilitate the automatic outflow of grain. Compared with traditional boxcars and open cars, this type of vehicle can effectively shorten the loading and unloading operation time, speed up vehicle turnover, improve loading and unloading labor conditions, and reduce transportation costs.

[0003] In the design of railway grain hopper cars, a top cover device is provided at the loading port on the top of the car body, which can be opened and closed as needed to protect the grain from being corroded by rain, snow, dust, etc. during transportation. The existing top cover device is usually welded with a steel profile and a top cover plate, which is welded from multiple steel plates and has multiple convex ribs pressed on it to increase the rigidity of the top cover.

[0004] However, this type of all-steel welded top cover is mostly in a grid shape, has a heavy weight, requires a large amount of welding, and is difficult to control welding deformation, which can easily result in poor flatness of the top cover and unsatisfactory sealing effect. Summary of the invention

[0005] The purpose of the present application is to provide a railway grain hopper car roof and a railway grain hopper car, so as to solve the problems of the existing railway grain hopper car roof 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 roof is provided, comprising a roof body, wherein the roof body comprises a first roof and a second roof arranged in parallel along its width direction, the first roof and the second roof are both hollow thin-walled box-shaped structures extending along the length direction of the roof body, and the two are welded together, the first roof and the second roof are connected at both ends by end plates, and the bottoms of the first roof and the second roof are connected to roof supports.

[0008] Furthermore, the first top cover and the second top cover are both formed by extrusion of aluminum alloy profiles and are provided with a plurality of reinforcing ribs.

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

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

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

[0012] Furthermore, the bottoms of both ends of the first top cover and the second top cover are connected via a partition, and a longitudinal stopper is connected to the partition.

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

[0014] Furthermore, the longitudinal stop includes an adjustment pad and a longitudinal baffle which are sequentially arranged on the inner side of the partition, a fastening bolt which passes through the longitudinal baffle, the adjustment pad and the partition in sequence, and a fastening nut which is connected to the end of the fastening bolt, and a groove for accommodating the head of the fastening bolt is provided on the longitudinal baffle.

[0015] Furthermore, the inner side surface of the longitudinal baffle is an inclined surface that inclines from top to bottom toward the adjustment pad.

[0016] In a second aspect, a railway grain hopper car is provided, comprising the railway grain hopper car top cover provided in the first aspect.

[0017] Beneficial effects of this application:

[0018] 1. The railway grain hopper car roof provided in the embodiment of the present application includes a roof body formed by welding a first roof and a second roof. By setting the first roof and the second roof as a hollow thin-walled box-type structure, the self-weight of the roof can be significantly reduced, while reducing the weld length of the roof and the amount of welding in the manufacturing process, reducing welding deformation, and improving the flatness and sealing effect of the roof.

[0019] 2. The railway grain hopper car roof provided in the embodiment of the present application is used to connect the first roof cover and the second roof cover together by setting end plates to increase the torsional resistance of the entire roof cover, and is also used to seal the ends of the first roof cover and the second roof cover to prevent rainwater from entering the cavity of the first roof cover and the second roof cover.

[0020] 3. The railway grain hopper car roof provided in the embodiment of the present application is formed by extruding the first roof and the second roof using aluminum alloy profiles. Since the density of the aluminum alloy profile is much lower than that of steel, the first roof and the second roof of the hollow thin-walled box-type structure are lighter while achieving the same structural strength, which helps to reduce the weight of the entire vehicle, improve fuel efficiency and reduce energy consumption. The extrusion molding of the aluminum alloy profile can reduce large deformation processing, and requires fewer components and joints than the steel roof, which helps to control the deformation of the roof during the manufacturing process and improve the flatness and sealing effect of the roof.

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

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

[0023] 6. The railway grain hopper car roof cover provided in the embodiment of the present application is provided with a longitudinal stopper to cooperate with the stopper on the roof to achieve positioning and prevent the longitudinal movement of the roof cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

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

[0026] Figure 2 It is a bottom view of the roof cover of the railway grain hopper car provided by an embodiment of the present application;

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

[0028] Figure 4 yes Figure 2 Enlarged view of middle part B;

[0029] Figure 5 is a schematic cross-sectional view of a roof cover of a railway grain hopper car provided in an embodiment of the present application;

[0030] Figure 6 is a schematic cross-sectional view of a first top cover;

[0031] Figure 7 is a schematic cross-sectional view of the second top cover;

[0032] Figure 8 It is a schematic diagram of the structure of a key-shaped hole;

[0033] Fig. 9 is a three-dimensional diagram of a longitudinal stop;

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

[0035] Fig.11 This is a front view of a railway grain hopper car provided in an embodiment of the present application;

[0036] Fig.12 This is a state diagram when the top cover is closed;

[0037] Fig.13 This is a diagram of the top cover being open.

[0038] Reference numerals:

[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-key hole;

[0050] 107-partition;

[0051] 108-support plate;

[0052] 20-top cover support;

[0053] 201-support bolt;

[0054] 202-fixed seat;

[0055] 203-bushing;

[0056] 30-longitudinal stop;

[0057] 301-adjusting pad;

[0058] 302-longitudinal baffle;

[0059] 3021-groove;

[0060] 303-fastening bolt;

[0061] 304-Fix nut. DETAILED DESCRIPTION

[0062] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0063] In the description of this application, the terms "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application. Unless otherwise specified, the above-mentioned directional descriptions can be flexibly set in the process of actual application under the condition that the relative positional relationship shown in the accompanying drawings is satisfied.

[0064] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] Railway grain hopper cars are railway vehicles specially designed for transporting bulk grain. In the design of railway grain hopper cars, a top cover device is provided at the loading port on the top of the car body. The top cover device can be opened and closed as needed to protect the grain from being eroded by rain, snow, dust, etc. during transportation. Existing top cover devices are usually welded together with steel profiles and top cover plates. The top cover plates are welded together from multiple steel plates and pressed with multiple convex ribs to increase the rigidity of the top cover. However, this all-steel welded top cover is mostly in a grid shape, has a heavy weight, a large amount of welding, and welding deformation is not easy to control, which can easily cause poor flatness of the top cover and unsatisfactory sealing effect.

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

[0067] Exemplarily, 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. 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. Due to its hollow characteristics, the hollow thin-walled box-shaped structure can significantly reduce the dead weight of the structure compared to the solid steel plate structure. At the same time, 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 the two are welded and connected, so that there are only two vertical seams arranged up and down between the first top cover 101 and the second top cover 102. These two longitudinal seams can be welded by automatic welding to reduce welding deformation, reduce the labor intensity of the operator, and also ensure the flatness requirements of the top cover. The two end plates 103 are respectively arranged 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 the first top cover 101 and the second top cover 102 at the same time. The top cover supports 20 include two groups, one group of top cover supports 20 is arranged at the bottom of the first top cover 101, and the other group of top cover supports 20 is arranged at the bottom of the second top cover 102; the two groups of top cover supports 20 are respectively connected to the transmission 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 roof provided in the embodiment of the present application can significantly reduce the weight of the entire roof by providing a roof body 10 formed by welding a first roof 101 and a second roof 102, and setting the first roof 101 and the second roof 102 as a hollow thin-walled box-shaped structure, while reducing the length of the weld of the roof and the amount of welding in the manufacturing process, reducing welding deformation, and improving the flatness and sealing effect of the roof. The end plate 103 is provided to connect the first roof 101 and the second roof 102 together to increase the torsion resistance of the entire roof, and is also used to block the ends of the first roof 101 and the second roof 102 to prevent rainwater from entering the cavity of the first roof 101 and the second roof 102.

[0069] In some embodiments, see Figure 5 , Figure 6 , Figure 7 The first top cover 101 and the second top cover 102 are both formed by extrusion of aluminum alloy profiles. For example, a plurality of reinforcing ribs are arranged in the inner cavity of the first top cover 101 and the second top cover 102, and the number of the reinforcing ribs is determined according to the width of the top cover. The wider the width of the top cover, the greater the number of reinforcing ribs.

[0070] The railway grain hopper car roof provided in the embodiment of the present application is formed by extruding the first roof 101 and the second roof 102 using aluminum alloy profiles. Since the density of the aluminum alloy profile is much lower than that of steel, the first roof 101 and the second roof 102 of the hollow thin-walled box-type structure are lighter in weight while achieving the same structural strength, which helps to reduce the weight of the entire vehicle, improve fuel efficiency and reduce energy consumption; the extrusion molding of the aluminum alloy profile can reduce large deformation processing, and requires fewer components and joints than the steel roof, which helps to control the deformation of the roof during the manufacturing process and improve the flatness and sealing effect of the roof; the aluminum alloy profile also has good corrosion resistance, and is not easy to rust even if exposed to the air for a long time, reducing maintenance costs and extending service life.

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

[0072] Exemplarily, the first top cover 101 and the first side panel 104 are an integrally formed structure, and the second top cover 102 and the second side panel 105 are an integrally formed structure; the first side panel 104 is tilted outwardly from top to bottom in a direction away from the second side panel 105, and the second side panel 105 is tilted outwardly from top to bottom in a direction away from the first side panel 104, thereby forming an eight-shaped structure between the first side panel 104 and the second side panel 105.

[0073] The railway grain hopper car roof cover provided in the embodiment of the present application is used to form rain eaves on both sides of the roof cover by setting a first side panel 104 and a second side panel 105, so that the entire roof cover forms a hat-shaped structure, so that the sealing strip of the roof loading port is completely sunken into the hat, thereby 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 is a thickened section structure. By adopting a thickened section structure at the welding position, the weld formation can be facilitated and the welding deformation can be reduced. Furthermore, the bottom of the first top cover 101 and the connection position with the top cover support 20 are thickened section structures, and the bottom of the second top cover 102 and the connection position with the top cover support 20 are thickened section structures. The use of thickened section structures can increase the connection strength and improve 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 through support bolts 201 , and key-shaped holes 106 matching with the support bolts 201 are provided on the first top cover 101 and the second top cover 102 .

[0076] For example, see Fig.10 The top cover support 20 includes a fixing seat 202 and a bushing 203 mounted on the fixing seat 202. The fixing seat 202 is connected to the first top cover 101 or the second top cover 102 through a support bolt 201. The bushing 203 is used to connect to the transmission shaft of the opening and closing mechanism. Figure 8 The key-shaped hole 106 includes a large hole portion and a small hole portion connected to the large hole portion. The large hole portion is used for the head of the support bolt 201 to pass through, and the small hole portion is used for the rod of the support bolt 201 to pass through. When in use, the head of the support bolt 201 is first inserted into the large hole portion from bottom to top, and then the rod of the support bolt 201 is moved to the small hole portion so that the head of the support bolt 201 is stuck in the top cover, and then the fixing base 202 is installed on the support bolt 201, and a nut is screwed 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 realized.

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

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

[0079] Exemplarily, 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 the first top cover 101 and the second top cover 102. The longitudinal stopper 30 is fixed to the inner side of the partition 107, and the inner side of the partition 107 refers to the side located between the two partitions 107.

[0080] The railway grain hopper car roof provided in the embodiment of the present application is used to connect the first top cover 101 and the second top cover 102 together by setting a partition 107, so as to increase the lateral connection strength between the two, and at the same time play a rainproof role to prevent rainwater from entering the inner side of the car body; by setting a longitudinal stopper 30, it is used to cooperate with the stopper of the roof to achieve positioning and prevent the top cover from moving longitudinally.

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

[0082] The railway grain hopper car roof provided in the embodiment of the present application is provided with a support plate 108 for connecting the partition 107 and the end plate 103 to strengthen the partition 107, increase the partition 107's ability to resist longitudinal impact against the longitudinal stop 30 when the roof is closed, and improve the reliability of the entire roof.

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

[0084] Exemplarily, the longitudinal baffle 302 is a rubber baffle, and the inner side of the longitudinal baffle 302 is an inclined surface inclined from top to bottom toward the adjustment pad 301. The inner side of the longitudinal baffle 302 refers to the side located between the two longitudinal baffles 302.

[0085] The railway grain hopper car roof provided in the embodiment of the present application can adjust the position of the longitudinal baffle 302 to adapt to different installation size requirements by replacing the adjustment pad 301 with different thicknesses; and by providing a groove 3021 for accommodating the head of the fastening bolt 303, it is prevented that the head of the fastening bolt 303 protrudes from the longitudinal baffle 302 and affects its operation.

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

[0087] See also Fig.12 , the top cover 4 is sealed and closed on the loading port 2 through the opening and closing mechanism 3 to close the loading port 2; see Fig.13 The top cover 4 is located on one side of the loading port 2 through the opening and closing mechanism 3 to open the loading port 2.

[0088] The railway grain hopper car provided in the embodiment of the present application has a top cover configured as a hollow thin-walled box-type structure, which can significantly reduce the dead 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 only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed in the present application should be covered within the protection scope of the present application.

Claims

1. A railway grain hopper car roof, characterized in that: The invention comprises a top cover body (10), wherein the top cover body (10) comprises a first top cover (101) and a second top cover (102) which are arranged in parallel along the width direction thereof, wherein 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 the two are welded to each other, and the two ends of the first top cover (101) and the second top cover (102) are respectively connected by end plates (103), and the bottoms of the first top cover (101) and the second top cover (102) are both connected to top cover supports (20).

2. The railway grain hopper car roof according to claim 1, characterized in that: The first top cover (101) and the second top cover (102) are both formed by extrusion of aluminum alloy profiles and are provided with a plurality of reinforcing ribs.

3. The railway grain hopper car roof according to claim 1, characterized in that: A first side plate (104) extending downward is provided at the bottom of the first top cover (101) on a side away from the second top cover (102), and a second side plate (105) extending downward is provided at the bottom of the second top cover (102) on a side away from the first top cover (101).

4. The railway grain hopper car roof 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 section structure.

5. The railway grain hopper car roof according to claim 1, characterized in that: The first top cover (101) and the second top cover (102) are both connected to the top cover support (20) via support bolts (201), and the first top cover (101) and the second top cover (102) are provided with key-shaped holes (106) that match the support bolts (201).

6. The railway grain hopper car roof according to claim 1, characterized in that: The bottoms of both ends of the first top cover (101) and the second top cover (102) are connected via a partition (107), and a longitudinal stopper (30) is connected to the partition (107).

7. The railway grain hopper car roof according to claim 6, characterized in that: The partition plate (107) is connected to the end plate (103) via a support plate (108).

8. The railway grain hopper car roof according to claim 6, characterized in that: The longitudinal stopper (30) comprises an adjusting pad (301) and a longitudinal baffle (302) which are sequentially arranged on the inner side of the partition (107), a fastening bolt (303) which passes through the longitudinal baffle (302), the adjusting pad (301) and the partition (107) in sequence, and a fastening nut (304) which is connected to the end of the fastening bolt (303), and a groove (3021) for accommodating the head of the fastening bolt (303) is provided on the longitudinal baffle (302).

9. The railway grain hopper car roof according to claim 8, characterized in that: The inner side surface of the longitudinal baffle (302) is a slope that inclines from top to bottom toward the adjustment pad (301).

10. A railway grain hopper car, characterized in that: The invention comprises the railway grain hopper car top cover as described in any one of claims 1 to 9.

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