Railway hopper car for transporting powdery goods

Abstract

The invention discloses a railway hopper car for transporting powdery goods, which relates to the technical field of railway hopper cars, and comprises a car body, a pneumatic control system, a car coupler buffer device, an air brake device, a manual brake device and a bogie, the vehicle body comprises a bottom frame, two funnels with double-sealing structures are arranged at the bottom of the bottom frame and distributed on the two sides of a middle beam of the bottom frame, two side walls are arranged on the two sides of the bottom frame, end walls are arranged at the two ends of the two side walls respectively, a vehicle roof is arranged on the upper portions of the side walls and the end walls, and unloading openings are formed in the bottoms of the funnels. A turnover type bottom door with a secondary locking device is arranged at the unloading opening, and the car roof comprises a fixed top cover assembly and a movable top cover assembly arranged over the fixed top cover assembly. The hopper car side wall is reasonable in design, and the problems that the hopper car side wall cannot give consideration to strength and space, a top cover is clamped, a bottom door is prone to being accidentally opened and sealing performance is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway hopper cars, and more specifically to the technical field of railway hopper cars for transporting powdery goods. Background Art

[0002] At present, there are various types of hopper cars running on the railways in China. Generally, they are divided into grain hopper cars, ballast hopper cars, coal hopper cars, etc. according to the different transported goods. Among these types, grain is a cargo with relatively small particle size. Grain hopper cars generally mainly transport particulate matters such as corn, soybeans, and rapeseed. For powdery goods such as flour, general gondola cars are generally used to load them in bagged form. In this form, during the circulation process, it is necessary to go through multiple processes of packaging disassembly, with low production efficiency, low transportation safety, large cargo losses, high labor intensity, and large consumption of packaging materials and human resources.

[0003] Due to the relatively large size of the hopper opening and the bottom door and the limitation of the manufacturing process, the flatness of the "mouth"-shaped hopper opening and the flatness of the bottom door panel are out of tolerance, and the sealing effect is not good when they are used in combination. Therefore, when transporting fine-grained powdery goods, if only the first-layer sealing structure is used, it may cause cargo leakage.

[0004] At present, when loading grain on the top cover of railway freight cars and existing railway grain and flour hopper cars and other railway fine-grained freight cars, the moving distance of a single rectangular loading hatch cover is only about 1225 mm, the total length of the loading hatch is about 5 m, and the total length of the loading hatch only accounts for about 30% of the length of the car roof and is discontinuous, so the grain loading efficiency is not high. The rectangular top cover is driven by a pneumatic motor, a sprocket, a transmission chain, etc., and is provided with tracks, pulleys, etc. The types and quantities of parts are relatively many, the driving device structure is complex, and the product cost is relatively high. When the sliding track is deformed or the roller bearing is rusted, the movement of the top cover will be stuck, which is not convenient for use, and the maintenance cost will also increase accordingly.

[0005] At present, the side wall components of hopper cars in China basically adopt two forms. One is a straight-wall type, and the other is an arc type. The straight-wall type side wall can make better use of the clearance space and increase the vehicle volume, but the stiffness of the side wall panel is not enough, and it is easy to generate outward expansion deformation after loading the cargo, which is not convenient for subsequent vehicle maintenance and use. The arc type side wall has better stiffness than the straight-wall type side wall, but it cannot make full use of the clearance space, the vehicle volume is small, and it is not conducive to the subsequent operation of the vehicle.

[0006] At present, the bottom doors of railway hopper cars in my country are mainly set at the bottom of the car body. One type is to open and close by pneumatic, hydraulic, electric control and other methods, and the other is a mechanical linkage mechanism, which uses ground facilities to achieve automatic opening and closing. The first type of bottom door mainly has two types: pull-out type and rotary type. The pneumatic, hydraulic and electric control devices directly act on the bottom door to drive the bottom door to open and close. This opening and closing method has a complex structure, low transmission efficiency and complex operation. If there is a problem with the equipment, it is easy to cause the bottom door to open accidentally. The second type of bottom door mainly adopts a flip type, which realizes automatic opening and closing by touching the ground facilities with the roller of the bottom door transmission device. This method requires the addition of corresponding ground contact facilities, which increases additional costs.

[0007] Therefore, in order to respond to the national policy of changing the mode of grain transportation from "packaged grain transportation" (bag transportation) to "bulk grain transportation", it is urgently necessary to design a new railway hopper car for transporting powdered goods. Summary of the invention

[0008] The purpose of the present invention is to provide a railway hopper car for transporting powdered goods in order to solve the technical problems that the side walls of the existing hopper cars cannot take into account both strength and space, the top cover is stuck, the bottom door is easily opened accidentally and the sealing is poor.

[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0010] The present invention provides a railway hopper car for transporting powdered goods, comprising a car body, a pneumatic control system, a coupler buffer device, an air brake device, a manual brake device and a bogie, a hydraulic control system is arranged at the lower part of the car body, the car body comprises an underframe, two hoppers with double sealing structures are arranged at the bottom of the underframe, the two hoppers are distributed on both sides of a center beam of the underframe, two side walls are arranged on both sides of the underframe, end walls are arranged at both ends of the two side walls, a car roof is arranged on the upper part of the side walls and the end walls, a discharge port is arranged at the bottom of the hopper, a flip-type bottom door with a secondary locking device is arranged at the discharge port, and the car roof comprises a fixed top cover assembly and a movable top cover assembly arranged on the fixed top cover assembly.

[0011] Specifically, the base frame is the bottom supporting frame, the side walls and end walls are used to enclose the surroundings, the funnel is used to enclose the bottom and unloading is achieved through opening and closing, and the rectangular top cover and the circular loading port cover cover the top and loading is achieved through opening and closing.

[0012] In one embodiment, the fixed top cover assembly is provided with a through rectangular loading port, and a double-ear arc-shaped hollow sealing strip is provided around the through rectangular loading port for sealing such as waterproofing. The movable top cover assembly includes a pneumatically controlled horizontally movable rectangular top cover arranged at the rectangular loading port, and a plurality of circular loading ports (attached Figure 4There are five circular loading ports in the middle), each of which is provided with a manual circular loading port cover with a locking device; the rectangular top cover and the circular loading port cover cover the top and realize loading by opening and closing; the circular loading port is used to accommodate loading equipment for powdery goods, and the full-length rectangular loading port is used to accommodate loading equipment for granular bulk goods; a full-length walkway is provided on one side of the roof to facilitate operators to walk on the roof and operate the circular loading port cover.

[0013] In one embodiment, drive shaft devices are built into both sides of the roof, and each drive shaft device includes a cylinder hinged between the roof and the end wall. Each cylinder is connected to the pneumatic control system through an air circuit. The pneumatic control system controls the two cylinders to extend or retract synchronously, driving the rectangular top cover to open or close, thereby realizing the loading operation of granular bulk cargo.

[0014] In one embodiment, the locking device includes a rotating support, a rotating shaft and a handle; the rotating support is arranged on a rectangular top cover near the circular loading port cover, the rotating shaft is rotatably arranged on the rotating support, and the rotating shaft is welded and fixed to the handle;

[0015] The rotating shaft adopts an eccentric design, and is provided with a working part for pressing the circular loading port cover and an avoiding part for avoiding the circular loading port cover;

[0016] The rotating shaft comprises a U-shaped part in the middle, a rotating rod arranged outside two side walls of the U-shaped part, the outer bottom surface of the U-shaped part is a working part, and the inner groove of the U-shaped part is an avoidance part.

[0017] A Z-shaped pressing plate matched with the U-shaped piece is arranged on one side of the circular loading port cover. One side of the Z-shaped pressing plate is fixed on the loading port cover, and the other side extends to the bottom of the U-shaped piece. When the loading port cover is closed, the working part presses the Z-shaped pressing plate. When the loading port cover is opened, the U-shaped piece is rotated and the avoidance part is located on the Z-shaped pressing plate.

[0018] The distance from the axis of the rotating rod to the inner bottom of the U-shaped member is L1, the orthographic projection position of the axis of the rotating rod on the Z-shaped pressing plate is the projection line, the distance from the end of the Z-shaped pressing plate to the projection line is L2, and the distance L1 is greater than the distance L2; the distance from the axis of the rotating rod to the outer bottom of the U-shaped member is greater than or equal to the distance from the axis of the rotating rod to the Z-shaped pressing plate;

[0019] The inner bottom surface of the U-shaped part is a planar release surface, and the outer bottom surface of the U-shaped part is an arc-shaped locking surface, and the locking surface and the Z-shaped pressing plate are in a tangent matching state.

[0020] Specifically, the rotating shaft adopts an eccentric design, and the rotating axis maintains a certain spatial distance from the locking surface (i.e., the outer bottom surface of the U-shaped part). The locking surface is arc-shaped, which can effectively reduce friction; the release surface (the inner bottom surface of the U-shaped part) is a planar structure, which can avoid obstruction to the end of the Z-shaped pressure plate when turned to a vertical position.

[0021] The two straight arms of the handle are fixed to the corresponding ends of the rotating rod by welding, and the release surface is perpendicular to the handle as a whole. The rotating shaft is welded and fixed to the handle, and the release surface of the rotating shaft is perpendicular to the handle at a 90-degree angle. The rotating shaft rotates along the support seat fulcrum with the handle to achieve the locking and opening of the roof loading port cover.

[0022] Working principle: When locking the loading port cover, place the handle in a vertical position and make the release surface perpendicular to the loading port cover. Close the loading port cover and rotate the handle outward. The locking surface (i.e., the outer bottom surface of the U-shaped part) and the Z-shaped pressure plate are in a tangential fit state, and are gradually locked as the handle is rotated. When the U-shaped part is in a horizontal position and the lowest point of the locking surface contacts the Z-shaped pressure plate, it is the locking dead point. At this time, continue to press down and rotate the handle, and the loading port cover will not be accidentally opened. When opening the loading port cover, rotate the handle upward, the locking surface rotates away from the pressure plate, and the release surface avoids the Z-shaped pressure plate, so that the loading port cover can be opened.

[0023] In one embodiment, the discharge port body is formed into a "mouth"-shaped structure, and the discharge port body includes two end funnel plate assemblies arranged in a transverse manner, a first side funnel plate assembly connected between one side edges of the two end funnel plate assemblies, and a second side funnel plate assembly connected between the other side edges of the two end funnel plate assemblies;

[0024] An inner sealing structure is arranged on the inner side of the opening below the first side funnel plate assembly and the second side funnel plate assembly; an outer sealing structure is arranged on the outer side of the opening below each end funnel plate assembly, the first side funnel plate assembly and the second side funnel plate assembly in an inlaid form, and the lowest position of the inner sealing structure is lower than the lowest position of the outer sealing structure.

[0025] In one embodiment, the end funnel plate assembly includes an end funnel plate, a transverse reinforcement beam, a transverse bead, and a transverse sealing strip;

[0026] The two sides of the end funnel plate are respectively connected to the first side funnel plate assembly and the second side funnel plate assembly, and the transverse reinforcing beam is transversely arranged at the outer side of the opening below the end funnel plate; a threaded hole for installing a transverse pressure strip is arranged at the bottom of the transverse reinforcing beam, and a transverse groove is arranged on the lower surface of the bottom of the transverse pressure strip, and the transverse sealing strip is installed in the transverse groove through the installation part; the transverse sealing strip is an outer sealing structure, and the transverse sealing strip is a rubber sealing strip with an "Ω"-shaped cross section;

[0027] In one embodiment, the first side hopper plate assembly includes a first side hopper plate, a first pressure plate, a first longitudinal sealing plate, a first longitudinal sealing strip, a first pressure strip, a first longitudinal reinforcing beam, a first sealing plate, and a first mounting plate;

[0028] The first mounting plate is fixed to the outer side of the first side funnel plate through the mounting hole, the first pressing plate and the first longitudinal sealing plate are fixed to the inner side of the first side funnel plate through the mounting hole, the first pressing plate is used to press the first longitudinal sealing plate, the mounting holes of the first side funnel plate, the first mounting plate, the first pressing plate and the first longitudinal sealing plate are all centrally aligned, and the four are locked by a bolt assembly;

[0029] The first longitudinal reinforcing beam is in a groove-shaped structure and is arranged on the outer side of the first side funnel plate. Both ends of the first longitudinal reinforcing beam are sealed by two first sealing plates. The bottom of the first longitudinal reinforcing beam is evenly provided with threaded holes for installing the first pressure strip. The lower surface of the bottom of the first pressure strip is provided with a first longitudinal groove. The first longitudinal sealing strip is installed in the first longitudinal groove through the installation part.

[0030] The first longitudinal sealing plate is an inner sealing structure, and is a 120° broken-line rubber sealing plate; the first longitudinal sealing strip is an outer sealing structure, and is an Ω-shaped rubber sealing strip.

[0031] Specifically, the "mouth"-shaped funnel is surrounded by a frame-type outer sealing structure composed of a transverse sealing strip and a longitudinal sealing strip assembly. The transverse sealing strip is embedded in the two longitudinal sealing strips, and the longitudinal sealing plate arranged along the longitudinal direction of the funnel forms an inner sealing structure. When the bottom door panel contacts the funnel mouth, the sealing plate is squeezed first, and then the sealing strip is squeezed. The four corners of the frame eliminate the gaps at the joints due to the squeezing of the sealing strips, thereby achieving a sealing effect.

[0032] In one embodiment, the side wall includes a side wall panel, two end side wall connecting plates connected to both ends of the inner wall of the side wall panel, a plurality of reinforcing beams longitudinally arranged on the inner wall of the side wall panel to increase the rigidity of the side wall panel, two first partition wall components arranged between the two end side wall connecting plates, a second partition wall component arranged between the two first partition wall components, and a plurality of mounting beam components; the end of the reinforcing beam is connected to the first partition wall component, the second partition wall component or the end side wall connecting plate; and the plurality of mounting beam components are arranged between the frames formed by the two side wall panels;

[0033] The end side wall connecting plates are obliquely arranged at the two ends of the side wall plates at a certain angle; they also include an upper side beam, which is attached to the upper edge of the side wall plates, and the upper parts of the first partition wall assembly and the second partition wall assembly are both connected to the upper side beam; the cross section of the side wall plate includes a middle straight line segment, an upper straight line segment and a lower straight line segment, an upper arc segment for increasing the stiffness of the side wall plate itself is arranged between the middle straight line segment and the upper straight line segment, a lower arc segment for increasing the stiffness of the side wall plate itself is arranged between the middle straight line segment and the lower straight line segment, and the bottom of the lower straight line segment is connected to the funnel assembly in the form of a straight line segment; an upper arc segment with a radius greater than one meter for increasing the stiffness of the side wall plate itself is arranged between the middle straight line segment and the upper straight line segment; a lower arc segment with a radius greater than four meters for increasing the stiffness of the side wall plate itself is arranged between the middle straight line segment and the lower straight line segment.

[0034] Specifically, a number of partition wall components, mounting beam components and reinforcing beams are arranged between the side walls, which can improve the side wall's ability to resist external expansion deformation while reducing the thickness of each component plate as much as possible to achieve a lightweight design for the vehicle. A number of reinforcing beams evenly arranged along the longitudinal direction of the side wall panel can effectively solve the structural instability and deformation problems that may occur when the vehicle is subjected to a longitudinal impact. The use of upper side beams can not only reduce the vehicle's own weight, but also reduce the volume of the vehicle occupied by the special-shaped upper side beams, thereby increasing the overall volume of the vehicle. The side wall panel adopts a combination of arcs and straight lines in cross section. The upper, middle and lower parts are straight lines, which maximize the use of the locomotive vehicle limit. Two arcs of different radii are used for connection and transition between the straight lines to increase the side wall panel's own rigidity while increasing the vehicle volume.

[0035] In one embodiment, the bottom door comprises two symmetrically arranged bottom door assemblies, a bearing mounting seat assembly, a transmission shaft assembly, a hydraulic cylinder and a hydraulic cylinder mounting seat; the transmission shaft assembly is placed in the middle of the bottom of the vehicle, the two bottom door assemblies are symmetrically placed on both sides of the transmission shaft assembly, the two bottom door assemblies are arranged longitudinally along the vehicle body, and are movably connected to the transmission shaft assembly;

[0036] The bearing mounting seat assembly is fixed to the bottom of the vehicle body, the bearing mounting seat assembly is placed at both ends of the transmission shaft assembly, and is connected to the transmission shaft assembly through fasteners; the hydraulic cylinder mounting seat is fixed on the middle beam assembly, one end of the hydraulic cylinder is connected to the hydraulic cylinder mounting seat by a hinge, and the other end is connected to the transmission shaft assembly by a hinge; the secondary locking device cooperates with the transmission shaft assembly to prevent the bottom door from opening accidentally.

[0037] Specifically, the dead point transmission mechanism is adopted to make the bottom door self-locking to prevent the bottom door from opening accidentally. The hydraulic control system is used to drive the bottom door to open and close, without the need to set up special ground facilities, reducing manufacturing costs. The hydraulic control system can secondary ensure that the bottom door will not open accidentally. A locking device is set on the main shaft, and the manually operated secondary locking mechanism is used to prevent the bottom door from opening accidentally.

[0038] In one embodiment, the secondary locking device includes a handle assembly, a first pull rod assembly, a lever fulcrum assembly, a second pull rod assembly, a rotating shaft assembly, a tension spring seat, a tension spring, a third pull rod assembly, and a locking lever assembly;

[0039] The handle assembly is fixed on both sides of the base frame, the lever fulcrum assembly is fixed under the vehicle, the two ends of the first pull rod assembly are movably connected to the handle assembly and the lever fulcrum assembly through a pin shaft, the second pull rod assembly is movably connected to the rotating shaft assembly through a pin shaft, the tension spring seat is fixed to the middle of the base frame, one end of the tension spring is sleeved in the tension spring seat, and the other end is connected to the rotating shaft assembly, and the third pull rod assembly is movably connected to the rotating shaft assembly and the locking lever assembly through a pin shaft.

[0040] Specifically, when the bottom door is opened, the handle is rotated to a certain angle, and the handle drives the first and second pull rod assemblies to move, thereby driving the rotating shaft assembly to rotate, and then driving the third pull rod assembly to move, and finally driving the locking lever assembly to rotate and disengage from the main shaft locking block. At this time, the secondary locking mechanism is unlocked, and after the bottom door is successfully opened, the handle is returned to its original position to lock the secondary locking mechanism.

[0041] When the bottom door is closed, the secondary locking mechanism must be unlocked first, that is, the handle is rotated to a certain angle, and the handle drives the first and second pull rod assemblies to move, thereby driving the rotating shaft assembly to rotate, and then driving the third pull rod assembly to move, and finally driving the locking lever assembly to rotate and disengage from the main shaft locking block. At this time, the secondary locking mechanism is unlocked, and after the bottom door is successfully closed, the handle is returned to its original position to lock the secondary locking mechanism.

[0042] The beneficial effects of the present invention are as follows:

[0043] 1. The present invention innovatively designs a railway hopper car for transporting fine-grained powdered goods. In order to seal the powdered goods, an innovative "mouth"-shaped inner and outer double-layer sealing structure is adopted at the unloading port. When the door panel contacts the hopper port, the first sealing structure is squeezed, and then the outer sealing structure is squeezed. The four corners of the frame eliminate the gap at the connection due to the squeezing of the outer sealing structure, thereby achieving a sealing effect. It can not only meet the sealing requirements of bulk cargo transportation, but also meet the sealing requirements of fine-grained powdered goods transportation.

[0044] 2. A full-length rectangular loading port is set on the roof, and the rectangular top cover is opened and closed by pneumatic control. A circular loading port is set on the rectangular top cover, and an eccentric manual lock is set on the circular top cover, and the opening and closing of the circular top cover is controlled manually. The two loading port forms can meet the needs of different loading equipment, and the loading method is flexible.

[0045] 3. In order to increase the vehicle volume and reduce the vehicle weight, the side wall panels with a cross-section in the form of a combination of arcs and straight lines are innovatively adopted. The upper, middle and lower parts are straight lines, which maximize the use of the vehicle limit. Two arcs of different radii are used to connect and transition between the straight lines to increase the rigidity of the side wall panels and increase the vehicle volume. The built-in L-shaped upper side beam can not only reduce the vehicle weight, but also reduce the volume of the vehicle occupied by the special-shaped upper side beam, increasing the overall volume of the vehicle.

[0046] 4. The bottom door adopts a dead point transmission mechanism, which makes the bottom door self-locking to prevent accidental opening. The bottom door is driven to open and close by the hydraulic control system, without the need to set up special ground facilities, reducing manufacturing costs. The hydraulic control system can ensure that the bottom door will not be opened accidentally. A locking device is set on the bottom door drive spindle, and the manually operated secondary locking mechanism is used to prevent the bottom door from opening accidentally. The triple protection prevents accidental opening of the bottom door. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention 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 creative work.

[0048] Figure 1 This is a front view of the structure of a railway hopper car for transporting powdered goods provided by the present invention;

[0049] Figure 2 It is the front view of the vehicle body structure;

[0050] Figure 3 It is the structural front view of the top cover and the transmission device;

[0051] Figure 4 It is a top view of the structure of the top cover and the transmission mechanism;

[0052] Figure 5 is a schematic diagram of the structure of a circular loading hatch locking device;

[0053] Figure 6 It is a top view of the funnel;

[0054] Figure 7 It is the AA view of the funnel;

[0055] Figure 8 It is a schematic diagram of the structure of the funnel;

[0056] Fig. 9 is a structural schematic diagram of the funnel plate assembly;

[0057] Fig.10 is a structural schematic diagram of a first side hopper plate assembly;

[0058] Fig.11 is a left side view of a hidden cover plate of a first side hopper plate assembly;

[0059] Fig.12 is a schematic diagram of the structure of the side wall assembly;

[0060] Fig.13 It is a structural diagram of the side wall panel;

[0061] Fig.14 is a schematic diagram of the structure of the bottom door assembly;

[0062] Fig.15 It is a schematic diagram of the structure with the bottom door closed;

[0063] Fig.16 It is a schematic diagram of the structure with the bottom door opened;

[0064] Fig.17 It is a schematic diagram of the structure of the secondary locking device;

[0065] Fig.18 It is a schematic diagram of the enlarged structure of the secondary locking device in the direction A;

[0066] Fig.19 It is a structural schematic diagram of a double-ear arc-shaped hollow sealing strip;

[0067] Reference numerals: 1-car body, 2-pneumatic control system, 3-coupler buffer device, 4-air brake device, 5-hand brake device, 6-bogie, 7-hydraulic control system, 8-reversible bottom door, 9-secondary locking device;

[0068] 11- bottom frame, 12- funnel, 13- side wall, 14- end wall, 15- roof;

[0069] 121-end funnel plate assembly, 122-first side funnel plate assembly, 123-second side funnel plate assembly;

[0070] 1211 - end funnel plate, 121 - transverse reinforcing beam, 1213 - transverse pressure strip, 1214 - transverse sealing strip (1214);

[0071] 1221-first side funnel plate, 1222-first pressing plate, 1223-first longitudinal sealing plate, 1224-first longitudinal sealing strip, 1225-first pressing strip, 1226-first longitudinal reinforcing beam, 1227-first sealing plate, 1228-first mounting plate;

[0072] 131-side wall plate, 132-end side wall connecting plate, 133-upper side beam, 134-reinforcement beam, 135-first partition wall, 136-second partition wall assembly, 137-installation beam assembly;

[0073] 151- rectangular top cover, 152- locking device, 153- circular loading port cover, 154- walking platform, 155- transmission shaft device;

[0074] 1521-rotating support, 1522-rotating shaft, 1523-handle;

[0075] 81- bottom door assembly, 82- bearing mounting seat assembly, 83- transmission shaft assembly, 84- hydraulic cylinder, 85- hydraulic cylinder mounting seat;

[0076] 91 - handle assembly, 92 - first pull rod assembly, 93 - lever fulcrum assembly, 94 - second pull rod assembly, 95 - rotating shaft assembly, 96 - tension spring seat, 97 - tension spring, 98 - third pull rod assembly, 99 - locking lever assembly. DETAILED DESCRIPTION

[0077] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0078] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0080] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. 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, be constructed and operated in a specific orientation.

[0081] It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances, and therefore cannot be understood as limiting the present invention.

[0082] like Figures 1 to 19As shown, this embodiment provides a railway hopper car for transporting powdery goods, including a car body 1, a pneumatic control system 2, a coupler buffer device 3, an air brake device 4, a manual brake device 5 and a bogie 6. A hydraulic control system 7 is provided at the lower part of the car body. The car body 1 includes a chassis 11, and two funnels 12 with double sealing structures are arranged at the bottom of the chassis 11. The two funnels 12 are distributed on both sides of the middle beam of the chassis 11. Two side walls 13 are arranged on both sides of the chassis 11, and end walls 14 are arranged at both ends of the two side walls 13. A roof 15 is arranged on the upper part of the side walls 13 and the end walls 14. A discharge port is arranged at the bottom of the hopper 12, and a flip bottom door 8 with a secondary locking device 9 is arranged at the discharge port. The roof 15 includes a fixed top cover assembly and a movable top cover assembly arranged on the fixed top cover assembly.

[0083] Specifically, the base frame is the bottom supporting frame, the side walls and end walls are used to enclose the surroundings, the funnel is used to enclose the bottom and unloading is achieved through opening and closing, and the rectangular top cover and the circular loading port cover cover the top and loading is achieved through opening and closing.

[0084] In one embodiment, the fixed top cover assembly is provided with a through rectangular loading port, and a double-ear arc-shaped hollow sealing strip is provided around the through rectangular loading port for waterproofing and other sealing functions. The movable top cover assembly includes a pneumatically controlled horizontally movable rectangular top cover 151 arranged at the rectangular loading port, and a plurality of circular loading port attachments are provided on the rectangular top cover 151. Figure 4 There are five circular loading ports in the middle, each of which is provided with a manual circular loading port cover 153 with a locking device 152; the rectangular top cover 151 and the circular loading port cover 153 cover the top and realize loading by opening and closing; the circular loading port is used to accommodate loading equipment for powdery goods, and the full-length rectangular loading port is used to accommodate loading equipment for granular bulk goods; a full-length walkway 154 is provided on one side of the roof 15 to facilitate operators to walk on the roof and operate the circular loading port cover 153.

[0085] In one embodiment, the double-ear arc-shaped hollow sealing strip includes an arc-shaped portion, a clamping portion connected to the bottom of the arc-shaped portion, and a heterosexual auxiliary seal provided at the top of the arc-shaped portion and in contact with the rectangular top cover 151 and having a rainproof function, the clamping portion is connected to the layer strip in a sealed embedded form, and the layer strip is installed on the top of the mounting seat. A hollow portion is provided inside the arc-shaped portion, the bottom of the arc-shaped portion is a bottom plane, the top of the arc-shaped portion is a top convex arc surface, the heterosexual auxiliary seal is located on the top convex arc surface, and the clamping portion is connected to the bottom plane through the connecting portion.

[0086] Specifically, a hollow portion is provided inside the arc-shaped portion to enhance the extrusion deformation capacity between the sealing strip and the top plate and the recovery capacity of the strip.

[0087] The pressure strip is in the shape of a long strip, and a secondary step strip groove with a smaller upper part and a larger lower part is provided on the upper surface of the pressure strip along the length direction, and the clamping part is shaped to match the bottom groove of the secondary step strip groove. A plurality of serrated first anti-skid teeth are provided inside the bottom groove of the secondary step strip groove, and a plurality of serrated second anti-skid teeth are provided on the outer surface of the clamping part, and the first anti-skid teeth mesh with the second anti-skid teeth.

[0088] Specifically, a serrated mounting base is used to increase the friction with the mounting surface and improve the anti-slip performance of the sealing strip. The embedded mounting method is used to pull the sealing strip along its length, which is convenient for disassembly and assembly and reduces labor intensity.

[0089] The hollow sealing strip also includes a side rain skirt vulcanized as one with the arc-shaped portion, and the side rain skirt is connected to one side of the bottom of the arc-shaped portion. The anisotropic auxiliary seal includes a left upper top rain edge and a right upper top rain edge, and the connection between the left upper top rain edge and the right upper top rain edge and the top of the arc-shaped portion is an arc strip, and the free ends of the two arc strips are both provided with bending portions in the same bending direction, and the bending portions are in sealing contact with the top plate. The side rain skirt includes an inclined plate connected to the arc-shaped portion and a vertical plate connected to the inclined plate, and the bottom position of the vertical plate is lower than the top position of the mounting seat.

[0090] Specifically, the clamping part is installed in the pressure strip, and the top plate squeezes the hollow sealing strip to compress the upper left rainproof edge, the arc-shaped part, and the upper right rainproof edge by a certain amount to achieve a sealing effect.

[0091] In one embodiment, a transmission shaft device 155 is built into both sides of the roof 15. Each transmission shaft device 155 includes a cylinder hinged between the roof 15 and the end wall 14. Each cylinder is connected to the pneumatic control system 2 through an air circuit. The pneumatic control system 2 controls the two cylinders to extend or retract synchronously, driving the rectangular top cover 151 to open or close, thereby realizing the loading operation of granular bulk cargo.

[0092] In one embodiment, the locking device includes a rotating support 1521, a rotating shaft 1522 and a handle 1523; the rotating support 1521 is disposed on the rectangular top cover 151 near the circular loading port cover 153, the rotating shaft 1522 is rotatably disposed on the rotating support 1521, and the rotating shaft 1522 is welded and fixed to the handle 1523;

[0093] The rotating shaft 1522 is designed to be eccentric, and is provided with a working portion for pressing the circular loading port cover 153 and an avoiding portion for avoiding the circular loading port cover 153;

[0094] The rotating shaft 1522 includes a U-shaped part in the middle, and a rotating rod arranged outside two side walls of the U-shaped part. The outer bottom surface of the U-shaped part is a working part, and the inner groove of the U-shaped part is an avoidance part.

[0095] A Z-shaped pressing plate matched with the U-shaped piece is arranged on one side of the circular loading port cover 153. One side of the Z-shaped pressing plate is fixed on the loading port cover, and the other side extends to the bottom of the U-shaped piece. When the loading port cover is closed, the working part presses the Z-shaped pressing plate. When the loading port cover is opened, the U-shaped piece is rotated and the avoidance part is located on the Z-shaped pressing plate.

[0096] The distance from the axis of the rotating rod to the inner bottom of the U-shaped part is L1, the positive projection position of the axis of the rotating rod on the Z-shaped pressing plate is the projection line, the distance from the end of the Z-shaped pressing plate to the projection line is L2, and the distance L1 is greater than the distance L2; the distance from the axis of the rotating rod to the outer bottom of the U-shaped part is greater than or equal to the distance from the axis of the rotating rod to the Z-shaped pressing plate;

[0097] The inner bottom surface of the U-shaped part is a planar release surface, and the outer bottom surface of the U-shaped part is an arc-shaped locking surface, and the locking surface and the Z-shaped pressing plate are in a tangent matching state.

[0098] Specifically, the rotating shaft adopts an eccentric design, and the rotating axis maintains a certain spatial distance from the locking surface, that is, the outer bottom surface of the U-shaped part. The locking surface is arc-shaped, which can effectively reduce friction; the inner bottom surface of the release surface U-shaped part is a plane structure, and when it is turned to a vertical position, it can avoid obstruction to the end of the Z-shaped pressure plate.

[0099] The two straight arms of the handle are fixed to the corresponding ends of the rotating rod by welding, and the release surface is perpendicular to the handle as a whole. The rotating shaft is welded and fixed to the handle, and the release surface of the rotating shaft is perpendicular to the handle at a 90-degree angle. The rotating shaft rotates along the support seat fulcrum with the handle to achieve the locking and opening of the roof loading port cover.

[0100] Working principle: When locking the loading port cover, place the handle in a vertical position and make the release surface perpendicular to the loading port cover. Close the loading port cover and rotate the handle outward. The locking surface, i.e., the outer bottom surface of the U-shaped part, is in tangential coordination with the Z-shaped pressure plate. As the handle is rotated at an increasing angle, it is gradually locked. When the U-shaped part is in a horizontal position and the lowest point of the locking surface contacts the Z-shaped pressure plate, it is the locking dead point. At this time, continue to press down and rotate the handle. The loading port cover will not be accidentally opened. When opening the loading port cover, rotate the handle upward. The locking surface rotates away from the pressure plate, and the release surface avoids the Z-shaped pressure plate, so that the loading port cover can be opened.

[0101] In one embodiment, the discharge port body is formed into a "mouth" structure, and the discharge port body includes two end funnel plate assemblies 121 arranged in a transverse direction, a first side funnel plate assembly 122 connecting one side edge of the two end funnel plate assemblies 121, and a second side funnel plate assembly 123 connecting the other side edges of the two end funnel plate assemblies 121;

[0102] An inner sealing structure is arranged on the inner side of the opening below the first side funnel plate assembly 122 and the second side funnel plate assembly 123; an outer sealing structure is arranged on the outer side of the opening below each end funnel plate assembly 121, the first side funnel plate assembly 122 and the second side funnel plate assembly 123 in an inlaid form, and the lowest position of the inner sealing structure is lower than the lowest position of the outer sealing structure.

[0103] In one embodiment, the end funnel plate assembly 121 includes an end funnel plate 1211 , a transverse reinforcing beam 1212 , a transverse pressure strip 1213 , and a transverse sealing strip 1214 ;

[0104] The two sides of the end funnel plate 1211 are respectively connected to the first side funnel plate assembly 122 and the second side funnel plate assembly 123, and the transverse reinforcing beam 1212 is transversely arranged at the outer side of the opening below the end funnel plate 1211; the bottom of the transverse reinforcing beam 1212 is provided with a threaded hole for installing a transverse pressure strip 1213, and the bottom lower surface of the transverse pressure strip 1213 is provided with a transverse groove, and the transverse sealing strip 1214 is installed in the transverse groove through the installation part; the transverse sealing strip 1214 is an outer sealing structure, and the transverse sealing strip 1214 is a rubber sealing strip with an "Ω"-shaped cross section;

[0105] In one embodiment, the first side funnel plate assembly 122 includes a first side funnel plate 1221, a first pressing plate 1222, a first longitudinal sealing plate 1223, a first longitudinal sealing strip 1224, a first pressing strip 1225, a first longitudinal reinforcing beam 1226, a first sealing plate 1227 and a first mounting plate 1228;

[0106] The first mounting plate 1228 is fixed to the outer side of the first side funnel plate 1221 through the mounting holes, the first pressing plate 1222 and the first longitudinal sealing plate 1223 are fixed to the inner side of the first side funnel plate 1221 through the mounting holes, the first pressing plate 1222 is used to press the first longitudinal sealing plate 1223, the mounting holes of the first side funnel plate 1221, the first mounting plate 1228, the first pressing plate 1222 and the first longitudinal sealing plate 1223 are all centrally aligned, and the four are locked by a bolt assembly;

[0107] The first longitudinal reinforcing beam 1226 is in a groove-shaped structure and is arranged on the outer side of the first side funnel plate 1221. Both ends of the first longitudinal reinforcing beam 1226 are sealed by two first sealing plates 1227. The bottom of the first longitudinal reinforcing beam 1226 is evenly provided with threaded holes for installing the first pressure strip 1225. The bottom lower surface of the first pressure strip 1225 is provided with a first longitudinal groove. The first longitudinal sealing strip 1224 is installed in the first longitudinal groove through the installation portion.

[0108] The first longitudinal sealing plate 1223 is an inner sealing structure, and is a 120° broken-line rubber sealing plate; the first longitudinal sealing strip 1224 is an outer sealing structure, and is an Ω-shaped rubber sealing strip.

[0109] Specifically, the "mouth"-shaped funnel is surrounded by a frame-type outer sealing structure composed of a transverse sealing strip and a longitudinal sealing strip assembly. The transverse sealing strip is embedded in the two longitudinal sealing strips, and the longitudinal sealing plate arranged along the longitudinal direction of the funnel forms an inner sealing structure. When the bottom door panel contacts the funnel mouth, the sealing plate is squeezed first, and then the sealing strip is squeezed. The four corners of the frame eliminate the gaps at the joints due to the squeezing of the sealing strips, thereby achieving a sealing effect.

[0110] In one embodiment, the side wall 13 includes a side wall panel 131, two end side wall connecting plates 132 connected to both ends of the inner wall of the side wall panel 131, a plurality of reinforcing beams 134 longitudinally arranged on the inner wall of the side wall panel 131 to increase the rigidity of the side wall panel 131, two first partition wall components 135 arranged between the two end side wall connecting plates 132, a second partition wall component 136 arranged between the two first partition wall components 135, and a plurality of mounting beam components 137; the end of the reinforcing beam 134 is connected to the first partition wall component 135, the second partition wall component 136 or the end side wall connecting plate 132; the plurality of mounting beam components 137 are arranged between the frames formed by the two side wall panels 131;

[0111] The end wall connecting plate 132 is arranged at a certain angle at both ends of the side wall plate 131; it also includes an upper side beam 133, the upper side beam 133 is attached to the upper edge of the side wall plate 131, and the upper parts of the first partition wall assembly 135 and the second partition wall assembly 136 are connected to the upper side beam 133; the cross section of the side wall plate 131 includes a middle straight line segment, an upper straight line segment and a lower straight line segment, and an upper portion for increasing the rigidity of the side wall plate 131 is provided between the middle straight line segment and the upper straight line segment An arc segment is provided between the middle straight segment and the lower straight segment for increasing the stiffness of the side wall panel 131, and the bottom of the lower straight segment is connected to the funnel assembly in the form of a straight segment; an upper arc segment with a radius greater than one meter is provided between the middle straight segment and the upper straight segment for increasing the stiffness of the side wall panel 131 and the radius is greater than four meters.

[0112] Specifically, a number of partition wall components, mounting beam components and reinforcing beams are arranged between the side walls, which can improve the side wall's ability to resist external expansion deformation while reducing the thickness of each component plate as much as possible to achieve a lightweight design for the vehicle. A number of reinforcing beams evenly arranged along the longitudinal direction of the side wall panel can effectively solve the structural instability and deformation problems that may occur when the vehicle is subjected to a longitudinal impact. The use of upper side beams can not only reduce the vehicle's own weight, but also reduce the volume of the vehicle occupied by the special-shaped upper side beams, thereby increasing the overall volume of the vehicle. The side wall panel adopts a combination of arcs and straight lines in cross section. The upper, middle and lower parts are straight lines, which maximize the use of the locomotive vehicle limit. Two arcs of different radii are used for connection and transition between the straight lines to increase the side wall panel's own rigidity while increasing the vehicle volume.

[0113] In one embodiment, the bottom door 8 includes two symmetrically arranged bottom door assemblies 81, a bearing mounting seat assembly 82, a transmission shaft assembly 83, a hydraulic cylinder 84 and a hydraulic cylinder mounting seat 85; the transmission shaft assembly 83 is placed in the middle of the bottom of the vehicle, and the two bottom door assemblies 81 are symmetrically placed on both sides of the transmission shaft assembly 83, and the two bottom door assemblies 81 are arranged along the longitudinal direction of the vehicle body and are movably connected with the transmission shaft assembly 83;

[0114] The bearing mounting seat assembly 82 is fixed to the bottom of the vehicle body, the bearing mounting seat assembly 82 is placed at both ends of the transmission shaft assembly 83, and is connected to the transmission shaft assembly 83 through fasteners; the hydraulic cylinder mounting seat 85 is fixed on the center beam assembly, one end of the hydraulic cylinder 84 is connected to the hydraulic cylinder mounting seat 85 by an articulated manner, and the other end thereof is connected to the transmission shaft assembly 83 by an articulated manner; the secondary locking device 9 cooperates with the transmission shaft assembly 83 to prevent the bottom door from being opened accidentally.

[0115] Specifically, the dead point transmission mechanism is adopted to make the bottom door self-locking to prevent the bottom door from opening accidentally. The hydraulic control system is used to drive the bottom door to open and close, without the need to set up special ground facilities, reducing manufacturing costs. The hydraulic control system can secondary ensure that the bottom door will not open accidentally. A locking device is set on the main shaft, and the manually operated secondary locking mechanism is used to prevent the bottom door from opening accidentally.

[0116] In one embodiment, the secondary locking device 9 includes a handle assembly 91, a first pull rod assembly 92, a lever fulcrum assembly 93, a second pull rod assembly 94, a rotating shaft assembly 95, a tension spring seat 96, a tension spring 97, a third pull rod assembly 98 and a locking lever assembly 99;

[0117] The handle assembly 91 is fixed on both sides of the base frame, the lever fulcrum assembly 93 is fixed under the vehicle, the two ends of the first pull rod assembly 92 are movably connected to the handle assembly 91 and the lever fulcrum assembly 93 through a pin shaft, the second pull rod assembly 94 is movably connected to the rotating shaft assembly 95 through a pin shaft, the tension spring seat 96 is fixed to the middle of the base frame, one end of the tension spring 97 is sleeved in the tension spring seat 96, and the other end is connected to the rotating shaft assembly 95, and the third pull rod assembly 98 is movably connected to the rotating shaft assembly 95 and the locking lever assembly 99 through a pin shaft.

[0118] Specifically, when the bottom door is opened, the handle is rotated to a certain angle, and the handle drives the first and second pull rod assemblies to move, thereby driving the rotating shaft assembly to rotate, and then driving the third pull rod assembly to move, and finally driving the locking lever assembly to rotate and disengage from the main shaft locking block. At this time, the secondary locking mechanism is unlocked, and after the bottom door is successfully opened, the handle is returned to its original position to lock the secondary locking mechanism.

[0119] When the bottom door is closed, the secondary locking mechanism must be unlocked first, that is, the handle is rotated to a certain angle, and the handle drives the first and second pull rod assemblies to move, thereby driving the rotating shaft assembly to rotate, and then driving the third pull rod assembly to move, and finally driving the locking lever assembly to rotate and disengage from the main shaft locking block. At this time, the secondary locking mechanism is unlocked, and after the bottom door is successfully closed, the handle is returned to its original position to lock the secondary locking mechanism.

Claims

1. A railway hopper car for transporting powdery goods, comprising a car body (1), a pneumatic control system (2), a coupler buffer device (3), an air brake device (4), a manual brake device (5) and a bogie (6), wherein a hydraulic control system (7) is provided at the lower part of the car body, and characterized in that: The vehicle body (1) comprises a chassis (11); two funnels (12) with a double sealing structure are arranged at the bottom of the chassis (11); the two funnels (12) are distributed on both sides of the center beam of the chassis (11); two side walls (13) are arranged on both sides of the chassis (11); end walls (14) are arranged at both ends of the two side walls (13); a roof (15) is arranged on the upper part of the side walls (13) and the end walls (14); a discharge port is arranged at the bottom of the funnel (12); a flip-type bottom door (8) with a secondary locking device (9) is arranged at the discharge port; and the roof (15) comprises a fixed top cover assembly and a movable top cover assembly arranged on the fixed top cover assembly.

2. A railway hopper car for transporting powdered goods according to claim 1, characterized in that: The fixed top cover assembly is provided with a through-length rectangular loading port, and double-ear arc-shaped hollow sealing strips are provided around the through-length rectangular loading port. The movable top cover assembly comprises a pneumatically controlled and horizontally movable rectangular top cover (151) arranged at the rectangular loading port, and a plurality of circular loading ports are arranged on the rectangular top cover (151), and each of the circular loading ports is provided with a manual circular loading port cover (153) with a locking device (152); a through-length walkway (154) is provided on one side of the vehicle roof (15).

3. A railway hopper car for transporting powdered goods according to claim 2, characterized in that: Transmission shaft devices (155) are built into both sides of the vehicle roof (15), and each transmission shaft device (155) comprises a cylinder hinged between the vehicle roof (15) and the end wall (14). Each cylinder is connected to the pneumatic control system (2) via an air circuit, and the pneumatic control system (2) controls the two cylinders to extend or retract synchronously, thereby driving the rectangular top cover (151) to open or close.

4. A railway hopper car for transporting powdered goods according to claim 2, characterized in that: The locking device comprises a rotating support (1521), a rotating shaft (1522) and a handle (1523); the rotating support (1521) is arranged on the rectangular top cover (151) near the circular loading port cover (153); the rotating shaft (1522) is rotatably arranged on the rotating support (1521); the rotating shaft (1522) and the handle (1523) are welded and fixed; The rotating shaft (1522) is designed to be eccentric, and is provided with a working portion for pressing the circular loading port cover (153) and an avoiding portion for avoiding the circular loading port cover (153); The rotating shaft (1522) comprises a U-shaped part in the middle, and a rotating rod arranged outside two side walls of the U-shaped part, the outer bottom surface of the U-shaped part is a working part, and the inner groove of the U-shaped part is an avoidance part; A Z-shaped pressing plate matched with the U-shaped piece is arranged on one side of the circular loading port cover (153); one side of the Z-shaped pressing plate is fixed on the loading port cover, and the other side extends to below the U-shaped piece; when the loading port cover is closed, the working part presses the Z-shaped pressing plate; when the loading port cover is opened, the U-shaped piece is rotated, and the avoidance part is located on the Z-shaped pressing plate; The distance from the axis of the rotating rod to the inner bottom of the U-shaped member is L1, the orthographic projection position of the axis of the rotating rod on the Z-shaped pressing plate is the projection line, the distance from the end of the Z-shaped pressing plate to the projection line is L2, and the distance L1 is greater than the distance L2; the distance from the axis of the rotating rod to the outer bottom of the U-shaped member is greater than or equal to the distance from the axis of the rotating rod to the Z-shaped pressing plate; The inner bottom surface of the U-shaped part is a planar release surface, and the outer bottom surface of the U-shaped part is an arc-shaped locking surface, and the locking surface and the Z-shaped pressing plate are in a tangent matching state.

5. A railway hopper car for transporting powdered goods according to claim 2, characterized in that: The material discharging port body comprises a "mouth"-shaped structure, wherein the material discharging port body comprises two end funnel plate assemblies (121) arranged in a transverse manner, a first side funnel plate assembly (122) connecting one side edge of the two end funnel plate assemblies (121), and a second side funnel plate assembly (123) connecting the other side edges of the two end funnel plate assemblies (121); An inner sealing structure is provided on the inner side of the opening below the first side funnel plate assembly (122) and the second side funnel plate assembly (123); an outer sealing structure is provided on the outer side of the opening below each end funnel plate assembly (121), the first side funnel plate assembly (122) and the second side funnel plate assembly (123) in an inlaid manner, and the lowest position of the inner sealing structure is lower than the lowest position of the outer sealing structure.

6. A railway hopper car for transporting powdered goods according to claim 5, characterized in that: The end funnel plate assembly (121) comprises an end funnel plate (1211), a transverse reinforcing beam (1212), a transverse pressure strip (1213) and a transverse sealing strip (1214); The two sides of the end funnel plate (1211) are respectively connected to the first side funnel plate assembly (122) and the second side funnel plate assembly (123); the transverse reinforcing beam (1212) is transversely arranged on the outer side of the opening below the end funnel plate (1211); a threaded hole for installing the transverse pressure strip (1213) is arranged at the bottom of the transverse reinforcing beam (1212); a transverse groove is arranged on the lower surface of the bottom of the transverse pressure strip (1213); the transverse sealing strip (1214) is installed in the transverse groove through the installation part; the transverse sealing strip (1214) is an outer sealing structure, and the transverse sealing strip (1214) is a rubber sealing strip with an "Ω"-shaped cross section.

7. A railway hopper car for transporting powdered goods according to claim 5, characterized in that: The first side funnel plate assembly (122) comprises a first side funnel plate (1221), a first pressing plate (1222), a first longitudinal sealing plate (1223), a first longitudinal sealing strip (1224), a first pressing strip (1225), a first longitudinal reinforcing beam (1226), a first sealing plate (1227) and a first mounting plate (1228); The first mounting plate (1228) is fixed to the outer side of the first side funnel plate (1221) through the mounting holes, the first pressing plate (1222) and the first longitudinal sealing plate (1223) are fixed to the inner side of the first side funnel plate (1221) through the mounting holes, the first pressing plate (1222) is used to press the first longitudinal sealing plate (1223), the mounting holes of the first side funnel plate (1221), the first mounting plate (1228), the first pressing plate (1222) and the first longitudinal sealing plate (1223) are all centrally aligned, and the four are locked by a bolt assembly; The first longitudinal reinforcing beam (1226) is in a groove-shaped structure and is arranged on the outer side of the first side funnel plate (1221), and the two ends of the first longitudinal reinforcing beam (1226) are sealed by two first sealing plates (1227); threaded holes for installing the first pressure strip (1225) are evenly arranged at the bottom of the first longitudinal reinforcing beam (1226), and a first longitudinal groove is opened on the lower surface of the bottom of the first pressure strip (1225), and the first longitudinal sealing strip (1224) is installed in the first longitudinal groove through the installation part; The first longitudinal sealing plate (1223) is an inner sealing structure, and is a zigzag rubber sealing plate with a cross section of 120°; the first longitudinal sealing strip (1224) is an outer sealing structure, and is a rubber sealing strip with a cross section of "Ω".

8. The railway hopper car for transporting powdered goods according to claim 1, characterized in that: The side wall (13) comprises a side wall panel (131), two end side wall connecting panels (132) connected to the two ends of the inner wall of the side wall panel (131), a plurality of reinforcing beams (134) longitudinally arranged on the inner wall of the side wall panel (131) for increasing the rigidity of the side wall panel (131), two first partition wall components (135) arranged between the two end side wall connecting panels (132), a second partition wall component (136) arranged between the two first partition wall components (135), and a plurality of mounting beam components (137); the end of the reinforcing beam (134) is connected to the first partition wall component (135), the second partition wall component (136) or the end side wall connecting panel (132); and the plurality of mounting beam components (137) are arranged between the frames formed by the two side wall panels (131); The end wall connection plate (132) is obliquely arranged at a certain angle at both ends of the side wall plate (131); it also includes an upper side beam (133), the upper side beam (133) is attached to the upper edge of the side wall plate (131), and the upper parts of the first partition wall component (135) and the second partition wall component (136) are both connected to the upper side beam (133); the cross section of the side wall plate (131) includes a middle straight line segment, an upper straight line segment and a lower straight line segment, and a portion for increasing the side wall plate (131) is provided between the middle straight line segment and the upper straight line segment. ) an upper arc segment for increasing the self-rigidity of the side wall panel (131); a lower arc segment for increasing the self-rigidity of the side wall panel (131) is provided between the middle straight segment and the lower straight segment, and the bottom of the lower straight segment is connected to the funnel assembly in the form of a straight segment; an upper arc segment for increasing the self-rigidity of the side wall panel (131) and having a radius greater than one meter is provided between the middle straight segment and the upper straight segment; a lower arc segment for increasing the self-rigidity of the side wall panel (131) and having a radius greater than four meters is provided between the middle straight segment and the lower straight segment.

9. The railway hopper car for transporting powdered goods according to claim 1, characterized in that: The bottom door (8) comprises two symmetrically arranged bottom door assemblies (81), a bearing mounting seat assembly (82), a transmission shaft assembly (83), a hydraulic cylinder (84) and a hydraulic cylinder mounting seat (85); the transmission shaft assembly (83) is arranged in the middle of the bottom of the vehicle, the two bottom door assemblies (81) are symmetrically arranged on both sides of the transmission shaft assembly (83), the two bottom door assemblies (81) are arranged along the longitudinal direction of the vehicle body, and are movably connected to the transmission shaft assembly (83); The bearing mounting seat assembly (82) is fixed to the bottom of the vehicle body, the bearing mounting seat assembly (82) is placed at both ends of the transmission shaft assembly (83), and is connected to the transmission shaft assembly (83) through fasteners; the hydraulic cylinder mounting seat (85) is fixed to the center beam assembly, one end of the hydraulic cylinder (84) is connected to the hydraulic cylinder mounting seat (85) through an articulated manner, and the other end of the hydraulic cylinder (84) is connected to the transmission shaft assembly (83) through an articulated manner; the secondary locking device (9) cooperates with the transmission shaft assembly (83) to prevent the bottom door from being accidentally opened.

10. A railway hopper car for transporting powdered goods according to claim 9, characterized in that: The secondary locking device (9) comprises a handle assembly (91), a first pull rod assembly (92), a lever fulcrum assembly (93), a second pull rod assembly (94), a rotating shaft assembly (95), a tension spring seat (96), a tension spring (97), a third pull rod assembly (98) and a locking lever assembly (99); The handle assembly (91) is fixed on both sides of the base frame, the lever fulcrum assembly (93) is fixed under the vehicle, the two ends of the first pull rod assembly (92) are respectively movably connected to the handle assembly (91) and the lever fulcrum assembly (93) through a pin shaft, the second pull rod assembly (94) is movably connected to the rotating shaft assembly (95) through a pin shaft, the tension spring seat (96) is fixed to the middle of the base frame, one end of the tension spring (97) is sleeved in the tension spring seat (96), and the other end is connected to the rotating shaft assembly (95), and the third pull rod assembly (98) is respectively movably connected to the rotating shaft assembly (95) and the locking lever assembly (99) through a pin shaft.

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