A roof structure for a railway covered funnel car

Abstract

This invention discloses a roof structure for a covered hopper car on railways, relating to the field of transportation equipment technology. It includes a fixed top cover assembly and a movable top cover assembly mounted on the fixed top cover assembly. The fixed top cover assembly includes an arc-shaped frame, a top plate mounted on the arc-shaped frame, and a longitudinal loading port frame located in the middle of the top plate. The movable top cover assembly includes a square loading port cover assembly, a circular top cover plate assembly, a top cover support, a top cover crossbeam assembly, a top cover longitudinal beam assembly, and a circular loading port locking device. The square loading port cover assembly is sealed at the longitudinal loading port frame and its translation is achieved through pneumatic control. The square loading port cover assembly has multiple circular loading ports, and the circular top cover plate assembly is sealed at each circular loading port. Each circular top cover plate assembly is equipped with a circular loading port locking device. This invention, by employing a double-layer top cover and multiple inlets, solves the technical problem of top cover movement jamming when the sliding track deforms or the roller bearings corrode.

Description

Technical Field

[0001] This invention relates to the field of railway transportation equipment technology, and more specifically to the field of railway covered funnel car roof structure technology. Background Technology

[0002] Existing patents disclose the following technologies related to railway freight car roofs:

[0003] Patent publication number CN208993689U, entitled "A Railway Freight Car Top Cover and a Railway Freight Car," discloses the following: The railway freight car top cover includes a cover body symmetrically arranged on the top of the railway freight car body and capable of opening or closing by swinging left and right. The cover body is integrally extruded from a hollow aluminum profile, and its cross-section perpendicular to the length direction of the railway freight car includes a straight portion and an arc-shaped portion. The straight portion is located in the inner region of the cover body, and the arc-shaped portion is located in the outer region of the cover body. This top cover can effectively prevent environmental pollution and has good processability, high reliability, light weight, high strength, and good rigidity.

[0004] Patent publication number CN113147817A, entitled "A Railway Freight Car Roofing Device and a Railway Freight Car," discloses the following: It solves the technical problems of complex structure and high cost existing in prior art railway freight car roofing devices. The roofing device includes a fixed cover plate, fixedly connected to the cargo box opening of the freight car, with a loading opening on the fixed cover plate; a movable cover plate, slidably installed at the loading opening; a hand-held part, disposed on the movable cover plate, for driving the movable cover plate to slide and open / close the loading opening; and a first locking part, installed between the movable cover plate and the fixed cover plate; when the movable cover plate closes the loading opening, the movable cover plate is locked to the fixed cover plate by the first locking part. This type of roofing device, with the aid of the hand-held part, allows the user to manually control the sliding of the movable cover plate at the loading opening, resulting in a simpler structure, lower cost, and easier operation. The railway freight car adopting the above-mentioned railway freight car roofing device has a simpler structure and lower cost.

[0005] The railway freight car top cover disclosed in the aforementioned patent, as well as existing railway grain and flour hopper cars and other fine-particle freight cars, have a single rectangular loading hatch cover that moves only about 2.5 meters when loading grain. The total length of the loading hatch is about 5 meters, accounting for only about 30% of the car roof length, and it is discontinuous, resulting in low grain loading efficiency. The rectangular top cover is driven by a pneumatic motor, sprockets, and transmission chains, and includes rails, pulleys, etc., resulting in a large variety and number of parts, a complex drive device structure, and high product cost. When the sliding rail deforms or the roller bearings corrode, the top cover will jam, making it inconvenient to use and increasing maintenance costs accordingly. Summary of the Invention

[0006] The purpose of this invention is to solve the technical problem of the top cover getting stuck when the sliding track is deformed or the roller bearing is corroded in the existing hopper car roof structure. This invention provides a railway covered hopper car roof structure.

[0007] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0008] This invention provides a roof structure for a railway covered hopper car, including a fixed top cover assembly and a movable top cover assembly disposed on the fixed top cover assembly;

[0009] The fixed top cover assembly includes an arc-shaped frame, a top plate mounted on the arc-shaped frame, and a longitudinal loading port frame located in the middle of the top plate.

[0010] The movable top cover assembly includes a square loading port cover assembly, a circular top cover plate assembly, a top cover support, a top cover crossbeam assembly, a top cover longitudinal beam assembly, and a circular loading port locking device. The square loading port cover assembly is sealed at the longitudinal loading port frame and its translation is achieved by pneumatic control. The square loading port cover assembly has multiple circular loading ports. The circular top cover plate assembly is sealed at the circular loading ports. Each circular top cover plate assembly is equipped with a circular loading port locking device. The top cover support is located at the bottom of the arc-shaped frame.

[0011] Specifically, the circular top cover assembly is mounted on the square loading port cover assembly, and both are located above the longitudinal loading port frame. Different loading ports are selected for loading goods according to the requirements of the loading medium. The double-layer top cover and multiple feed ports solve the technical problem of top cover movement jamming when the sliding track is deformed or the roller bearings are corroded.

[0012] In one embodiment, the arc-shaped frame includes a top curved beam, a middle curved beam disposed below the top curved beam, a longitudinal beam disposed on the middle curved beam, and a longitudinal reinforcing beam disposed on the middle curved beam.

[0013] The top curved beam is made of hot-rolled angle steel, and the two ends of the top curved beam are equipped with segmented ends at the connection with the side wall.

[0014] The central curved beam is made of ultra-thin steel plate and has a segmented, sheet-like arc-shaped structure.

[0015] In one embodiment, the top plate is made of a steel plate with a thickness of 3 mm.

[0016] In one embodiment, two end loading frames are provided at both ends of the top plate, and the longitudinal loading frame and the end loading frame are made of cold-formed steel.

[0017] In one embodiment, the fixed top cover assembly further includes a walkway arranged longitudinally on one side of the top plate, and fixed railings are provided at the edge of the top plate.

[0018] In one embodiment, the square loading hatch assembly is a variable cross-section cold-pressed structure, the top cover crossbeam assembly is made of cold-formed cap steel, the top cover longitudinal beam assembly is made of cold-formed channel steel, and the top cover crossbeam assembly, the top cover longitudinal beam assembly, and the square loading hatch assembly are all made of 2.3mm thick plate.

[0019] In one embodiment, the circular top cover assembly includes a retaining ring, a sealing gasket, a pressure plate, a bolt mounting base, a locking bar support plate, a hinge, and a locking pin.

[0020] In one embodiment, each circular loading port is located directly above the corresponding longitudinal loading port frame.

[0021] In one embodiment, the number of circular top cover assemblies and the number of circular loading ports are both five.

[0022] In one embodiment, the connection between the movable top cover assembly and the fixed top cover assembly is sealed with an aluminum alloy profile and a rubber sealing strip.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. This invention features a reasonable design, with a circular loading port positioned on top of a rectangular loading port (vertical loading port frame). Different loading ports can be selected based on the requirements of the loading medium. The double-layered top cover and multiple feed inlets solve the technical problem of top cover movement jamming when the sliding track deforms or the roller bearings corrode.

[0025] 2. The horizontal main body of the arc-shaped frame of the fixed roof assembly is a segmented piece structure, which is symmetrically arranged along the longitudinal direction of the vehicle body to achieve lightweight roof; the segmented piece structure arc-shaped frame realizes the adjustable performance of the assembly sequence and improves the processability of assembling the roof with the side wall of the whole vehicle.

[0026] 3. The movable top cover assembly is equipped with a circular loading port. When loading granular goods such as grain, the circular loading port is in the closed position, and the power mechanism opens the rectangular loading port (longitudinal loading port frame) to achieve rapid loading of goods.

[0027] 4. The movable top cover assembly has five circular loading ports and one rectangular loading port (vertical loading port frame) on top. When loading powdery goods such as flour, the top cover of the rectangular loading port (vertical loading port frame) remains in the closed position. Manually open the loading port covers of each circular loading port and move the vehicle under the unloading hopper of the loading station, ensuring that each loading port of the vehicle corresponds to the unloading hopper, thus avoiding dust pollution. This enables the loading of powdery goods. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, 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 the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a top view of the car roof;

[0030] Figure 2 This is a structural diagram of the fixed top cover;

[0031] Figure 3 This is a schematic diagram of the arc-shaped frame (middle section);

[0032] Figure 4 This is a structural diagram of the arc-shaped frame (end);

[0033] Figure 5 This is a top view of the movable top cover;

[0034] Figure 6 This is the left view of the movable top cover;

[0035] Reference numerals: 1-Fixed top cover assembly, 2-Modible top cover assembly;

[0036] 11-Arched frame, 12-Top plate, 13-Longitudinal loading port frame, 14-End loading port frame, 15-Walkway;

[0037] 111-Middle curved beam, 112-Longitudinal reinforcing beam, 113-Longitudinal beam, 114-Top curved beam;

[0038] 21-Circular top cover plate assembly, 22-Top cover crossbeam assembly, 23-Square loading port cover assembly, 24-Top cover longitudinal beam assembly, 25-Circular loading port locking device, 26-Top cover support. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0041] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention 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.

[0043] It should also be noted that, unless otherwise explicitly specified and limited, the terms "setup" and "connection" 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. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances, and therefore they should not be construed as limitations on this invention.

[0044] Example 1

[0045] like Figures 1 to 6 As shown, this embodiment provides a roof structure for a railway covered hopper car, including a fixed top cover assembly 1 and a movable top cover assembly 2 disposed on the fixed top cover assembly 1;

[0046] The fixed top cover assembly 1 includes an arc-shaped frame 11, a top plate 12 disposed on the arc-shaped frame 11, and a longitudinal loading port frame 13 disposed in the middle of the top plate 12.

[0047] The movable top cover assembly 2 includes a square loading port cover assembly 23, a circular top cover plate assembly 21, a top cover support 26, a top cover crossbeam assembly 22, a top cover longitudinal beam assembly 24, and a circular loading port locking device 25. The square loading port cover assembly 23 is sealed at the longitudinal loading port frame 13 and its translation is achieved by pneumatic control. The square loading port cover assembly 23 has multiple circular loading ports. The circular top cover plate assembly 21 is sealed at the circular loading ports. Each circular top cover plate assembly 21 is equipped with a circular loading port locking device 25. The top cover support 26 is located at the bottom of the arc-shaped frame 11.

[0048] Specifically, a circular loading port is located on top of a rectangular loading port (vertical loading port frame). Different loading ports are selected for loading goods according to the requirements of the loading medium. The double-layered top cover and multiple feed ports solve the technical problem of top cover movement jamming when the sliding track is deformed or the roller bearings are corroded. The fixed top cover assembly 1 is welded and fixed to the end wall and side wall of the vehicle; the movable top cover assembly is located directly above the longitudinal loading port frame 13, and is a combined loading port cover. The locking device of the movable top cover uses a four-bar linkage and a double-acting cylinder to drive the opening and closing of the loading port cover.

[0049] Example 2

[0050] like Figures 1 to 6 As shown, this embodiment provides a roof structure for a railway covered hopper car, including a fixed top cover assembly 1 and a movable top cover assembly 2 disposed on the fixed top cover assembly 1;

[0051] The fixed top cover assembly 1 includes an arc-shaped frame 11, a top plate 12 disposed on the arc-shaped frame 11, and a longitudinal loading port frame 13 disposed in the middle of the top plate 12.

[0052] The movable top cover assembly 2 includes a square loading port cover assembly 23, a circular top cover plate assembly 21, a top cover support 26, a top cover crossbeam assembly 22, a top cover longitudinal beam assembly 24, and a circular loading port locking device 25. The square loading port cover assembly 23 is sealed at the longitudinal loading port frame 13 and its translation is achieved by pneumatic control. The square loading port cover assembly 23 has multiple circular loading ports. The circular top cover plate assembly 21 is sealed at the circular loading ports. Each circular top cover plate assembly 21 is equipped with a circular loading port locking device 25. The top cover support 26 is located at the bottom of the arc-shaped frame 11.

[0053] The arc-shaped frame 11 includes a top curved beam 114, a middle curved beam 111 disposed below the top curved beam 114, a longitudinal beam 113 disposed on the middle curved beam 111, and a longitudinal reinforcing beam 112 disposed on the middle curved beam 111.

[0054] The top curved beam 114 is made of hot-rolled angle steel, and the two ends of the top curved beam 114 are provided with segmented ends at the connection with the side wall.

[0055] The central curved beam 111 is made of ultra-thin steel plate and has a segmented, sheet-like arc-shaped structure.

[0056] Specifically, the fixed top cover assembly 1 is a welded plate structure. The top curved beam 114 is made of hot-rolled angle steel, and the connection between the end and the side wall is segmented. The middle curved beam 111 is made of ultra-thin steel plate and is a segmented, sheet-like arc-shaped structure, consisting of the middle curved beam 111 and the side-top connecting section of the middle curved beam 111. The longitudinal beam 113 is made of cold-formed steel. The longitudinal reinforcing beam 112 is only located at the transverse center of the vehicle body and is a sheet-like structure.

[0057] Example 3

[0058] This embodiment is a further optimization based on embodiment 2, specifically:

[0059] The top plate 12 is made of steel plate with a thickness of 3mm.

[0060] The top plate 12 is provided with two end loading port frames 14 at both ends. The longitudinal loading port frame 13 and the end loading port frame 14 are made of cold-formed steel, and the loading port frame is sealed with aluminum alloy profiles and rubber sealing strips.

[0061] The fixed top cover assembly 1 also includes a walkway 15 arranged longitudinally on one side of the top plate 12, and fixed railings are provided on the edge of the top plate 12.

[0062] Specifically, the fixed top cover assembly 1 has a continuous rectangular loading opening, and to ensure the safety of personnel operating on the roof, it is equipped with fixed railings and a full-length walkway 15. The fixed top cover assembly 1 is made of T4003 material.

[0063] Example 4

[0064] This embodiment is a further optimization based on embodiment 2, specifically:

[0065] The square loading hatch assembly 23 is a variable cross-section cold-pressed structure. The top cover crossbeam assembly 22 is made of cold-formed cap steel, and the top cover longitudinal beam assembly 24 is made of cold-formed channel steel. The top cover crossbeam assembly 22, the top cover longitudinal beam assembly 24, and the square loading hatch assembly 23 are all made of 2.3mm thick plates.

[0066] The circular top cover assembly 21 includes a retaining ring, a sealing gasket, a pressure plate, a bolt mounting base, a locking rod support plate, a hinge, and a locking pin.

[0067] Each circular loading port is located directly above the corresponding vertical loading port frame 13.

[0068] The number of circular top cover plate assemblies 21 and the number of circular loading ports are both five.

[0069] The connection between the movable top cover assembly 2 and the fixed top cover assembly 1 is sealed with aluminum alloy profiles and rubber sealing strips.

[0070] Specifically, five circular loading ports and their covers are distributed on a rectangular movable top cover. They are opened and closed manually by the operator.

Claims

1. A roof structure for a covered hopper car on railways, characterized in that, It includes a fixed top cover assembly (1) and a movable top cover assembly (2) disposed on the fixed top cover assembly (1); The fixed top cover assembly (1) includes an arc-shaped frame (11), a top plate (12) disposed on the arc-shaped frame (11), and a longitudinal loading port frame (13) disposed in the middle of the top plate (12). The movable top cover assembly (2) includes a square loading port cover assembly (23), a round top cover plate assembly (21), a top cover support (26), a top cover crossbeam assembly (22), a top cover longitudinal beam assembly (24), and a round loading port locking device (25). The square loading port cover assembly (23) is sealed at the longitudinal loading port frame (13) and its translation is achieved by pneumatic control. The square loading port cover assembly (23) is provided with multiple circular loading ports. The circular top cover plate assembly (21) is sealed at the circular loading ports. Each circular top cover plate assembly (21) is provided with a circular loading port locking device (25). The top cover support (26) is located at the bottom of the arc-shaped frame (11). The arc-shaped frame (11) includes a top curved beam (114), a middle curved beam (111) disposed below the top curved beam (114), a longitudinal beam (113) disposed on the middle curved beam (111), and a longitudinal reinforcing beam (112) disposed on the middle curved beam (111). The top curved beam (114) is made of hot-rolled angle steel, and the two ends of the top curved beam (114) are provided with segmented ends at the connection with the side wall. The central curved beam (111) is made of steel plate, and the central curved beam (111) is a segmented, sheet-like arc-shaped structure; Each of the circular loading ports is located directly above the longitudinal loading port frame (13); The number of the circular top cover assembly (21) and the number of the circular loading ports are both five.

2. The roof structure of a railway covered funnel car according to claim 1, characterized in that, The top plate (12) is made of steel plate with a thickness of 3mm.

3. The roof structure of a covered hopper car for railways according to claim 1, characterized in that, The top plate (12) is provided with two end loading ports (14) at both ends. The longitudinal loading port (13) and the end loading port (14) are made of cold-formed steel.

4. The roof structure of a covered hopper car for railways according to claim 1, characterized in that, The fixed top cover assembly (1) also includes a walkway (15) arranged longitudinally on one side of the top plate (12), and the edge of the top plate (12) is provided with a fixed railing.

5. The roof structure of a railway covered funnel car according to claim 1, characterized in that, The square loading hatch assembly (23) is a variable cross-section cold-pressed structure. The top cover beam assembly (22) is made of cold-bent cap steel, and the top cover longitudinal beam assembly (24) is made of cold-bent channel steel. The top cover beam assembly (22), the top cover longitudinal beam assembly (24) and the square loading hatch assembly (23) are all made of 2.3mm thick plate.

6. The roof structure of a covered hopper car for railways according to claim 1, characterized in that, The circular top cover assembly (21) includes a retaining ring, a sealing gasket, a pressure plate, a bolt mounting base, a locking rod support plate, a hinge, and a locking pin.

7. The roof structure of a railway covered funnel car according to claim 1, characterized in that, The connection between the movable top cover assembly (2) and the fixed top cover assembly (1) is sealed with aluminum alloy profiles and rubber sealing strips.

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