Large-volume coke transportation railway open wagon

Abstract

The invention discloses a large-volume coke transportation railway open wagon, and relates to the technical field of railway open wagons, the large-volume coke transportation railway open wagon comprises a wagon body, a wagon coupler buffer device, a brake device and a bogie, the wagon body is of a box body structure with an upward opening, and the cross section of the wagon body is in a big-end-down bottleneck shape; the vehicle body comprises a chassis assembly, two side wall assemblies symmetrically arranged on the two sides of the chassis assembly and two end wall assemblies arranged at the two ends of the chassis assembly, and the bottoms of the two side wall assemblies are close to the vehicle limit of the chassis assembly; the cross section of the side wall plate of each side wall assembly is in a broken line shape, and the side wall plate of each side wall assembly is gradually narrowed upwards at the position close to the vehicle limit inflection point. According to the box body structure with the upward opening formed through assembly welding, the cross section of the vehicle body is in a big-end-down bottle opening shape, the side face contour is close to the rolling stock limit, only certain safety allowance is reserved, the cross section area is increased by fully utilizing the limit, and the volume of the vehicle is increased.

Description

Technical Field

[0001] The invention relates to the technical field of railway open wagons, and more specifically to the technical field of large-capacity coke transport railway open wagons. Background Art

[0002] According to the research on vehicles in various countries, the different coke production and distribution in various countries determine the need for different transportation methods. Foreign countries mainly use hopper cars to transport coke, while domestically, open wagons are used for transportation. However, there are few types of railway wagons specially developed for transporting coke, and the small number cannot meet the needs of railway transportation. Compared with open wagons, hopper cars do not require manpower to unload goods, which can save labor costs. However, hopper cars have high requirements for ground facilities. Bottom-opening hopper cars require unloading pits, and side-opening hopper cars require low platforms or viaducts for unloading. Under the same train formation length, if the vehicle is too long, the number of train formations will be reduced and the effective traction tonnage of the train will be reduced. At the same time, the manufacturing, use and maintenance costs of hopper cars are high.

[0003] In the United States, the annual rail transportation volume of coke is small, only a few million tons, and the ground is equipped with ground facilities such as pits and conveyor belts. Therefore, coke is mainly transported in the form of hopper cars. The car weighs 29.3 tons, has a load capacity of 90 tons, and a volume of 149m 3 In addition, the German railway transports coke mainly in side-opening dump trucks, which can be used to transport coal, ore, etc. in addition to coke. The maximum load of the vehicle is 64t, the deadweight is 25.7t, and the volume is 85m 3 When unloading, the four bottom side doors open at the same time. Russia uses self-unloading side-door hopper cars to transport coke. Each hopper has four unloading ports. The bottom door is operated by two independent unloading mechanisms, which are controlled by pneumatic and manual respectively. The vehicle has a load capacity of 58.5t, a dead weight of 29.5t, and a volume of 117m 3 The French Arbel company's Talbot type hopper car with no cover can be used to transport coke, with a load of 55t and a volume of 122m 3 .

[0004] In view of the ground facilities of my country's platforms and taking full account of improving the economic benefits of railway transportation, my country developed the C64A(T) type open wagon for coke transportation in 2000. The wagon has a load capacity of 60 tons, a deadweight of 23.5 tons, and a volume of 91.3m 3 In order to accelerate the modernization of railway equipment and meet the requirements of upgrading railway freight cars from 60t to 70t, the C70C type open wagon for coke transportation was developed in 2008. The wagon has a load capacity of 70t, a deadweight of 23.8t and a volume of 112m 3 .

[0005] C64A(T) and C70C open wagons for coke transportation were initially designed for targeted customers only. The unloading methods include manual and crane unloading. As the driver's field of vision is limited during crane unloading operations, the crane frequently collides and scrapes the side walls, floor and lower door, causing significant damage to the car body. Typical fault problems include "side wall bulging", "three-plate" damage, "corrosion", "lower door damage and deformation", etc.

[0006] The modern coke production process is divided into coal washing, coal blending, coking and product processing. The product processing of coking sends the red-hot coke pushed out of the furnace to the quenching tower to quench the fire, and then crushes, screens and grades it to obtain finished coke of different particle sizes. There are two methods of quenching coke: dry method and wet method. Wet quenching is to transport the red-hot coke to the quenching tower and spray it with high-pressure water; dry quenching is to put the red-hot coke into the quenching chamber and use inert gas circulation to recover the physical heat of the coke.

[0007] Wet quenching is the oldest quenching method adopted by the steel industry. It has a simple principle, mature technology and low cost. Many coking plants that have been built now use wet quenching, but the water spray holes of the old wet quenching with backward technology are frequently blocked. Long quenching time leads to high moisture content, and short time leads to red coke. The strength and moisture content of coke after quenching are not uniform, and it pollutes the environment greatly. Dry quenching is a major energy-saving and environmental protection technology in the steel industry. The use of dry quenching technology can improve the quality of coke, avoid the pollution of wet quenching to the environment, and recover the sensible heat of red coke, playing a dual role of energy saving and environmental protection. However, the construction and operation costs of dry quenching towers are high, and the technology is difficult. It has not yet been fully popularized.

[0008] With the improvement of coke production technology, the original water quenching has been gradually improved to dry quenching, and the density of coke has been further reduced. Therefore, the existing coke transport vehicle has a tonnage loss situation when the volume remains unchanged, resulting in low transportation efficiency. It is necessary to develop a large-volume coke transport vehicle. Summary of the invention

[0009] The purpose of the present invention is to solve the technical problems of reduced transport tonnage and low transport efficiency of existing coke transport vehicles when transporting low-density coke, and to provide a large-capacity coke transport railway open car.

[0010] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0011] The present invention provides a large-volume coke transportation railway open car, comprising a car body, a coupler buffer device, a brake device and a bogie, wherein the car body is a box structure with an opening facing upward, and the cross section of the car body is in a "bottle mouth" shape with a small top and a large bottom, and the car body comprises a chassis assembly, two side wall assemblies symmetrically arranged on both sides of the chassis assembly, and two end wall assemblies arranged at both ends of the chassis assembly, and the bottoms of the two side wall assemblies are close to the vehicle limit of the chassis assembly;

[0012] The cross section of the side wall plate of each side wall assembly is in a broken line shape, and the side wall plate of each side wall assembly gradually narrows upward near the vehicle limit turning point.

[0013] Specifically, the box structure with an upward opening is welded together, and the cross section of the car body is in the shape of a "bottle mouth" with a small top and a large bottom. The side profile is close to the locomotive vehicle limit (GB146.1-2020), leaving only a certain safety margin, making full use of the limit to increase the cross-sectional area, which is conducive to increasing the vehicle volume. The side profile is a broken line, gradually narrowing upward near the turning point of the vehicle limit.

[0014] In one embodiment, the chassis assembly includes a bottom plate, a middle beam arranged in the middle below the bottom plate, two lower side beams arranged on both sides below the bottom, and two end beams arranged at both ends below the bottom; and also includes a plurality of large cross beams, a plurality of bolster beams, and a plurality of small cross beams symmetrically arranged at both ends of the middle beam;

[0015] Large beams, pillow beams and small beams are arranged alternately.

[0016] Specifically, the spacing between the pillows, large cross beams, and small cross beams is smaller than that of existing open cars, which reduces the free area of ​​the floor and improves the deformation resistance of the floor. The following is a specific structure of the chassis assembly:

[0017] In one embodiment, the large cross beam is in a "wrench" shape, and the large cross beam includes a cross beam lower cover plate, a cross beam web plate, a cross beam upper cover plate, a reinforcement plate and a partition plate welded together to form a variable cross-section box-shaped structure;

[0018] Specifically, the crossbeam adopts a variable-section box-type structure formed by welding double webs, which is arranged on both sides of the center beam along the transverse direction of the vehicle body. The crossbeam has a large cross-section at the connection with the center beam and a small cross-section at the connection with the side beam. The crossbeam is mainly welded by: crossbeam upper cover plate, crossbeam web plate, crossbeam lower cover plate, crossbeam partition plate, crossbeam web plate reinforcement plate, etc. The crossbeam upper cover plate is provided with an arc structure at the connection with the center beam, and a notch is provided at the connection with the side beam to form a "wrench" shaped structure. The crossbeam web is perpendicular to the crossbeam upper cover plate and the crossbeam lower cover plate. The crossbeam web forms a convex structure at the notch of the crossbeam upper cover plate, and its upper edge is flush with the upper plane of the crossbeam upper cover plate, that is, the crossbeam web is directly connected to the bottom plate at this location. The crossbeam lower cover plate is a folded and pressed structure, and an arc structure is provided at the connection with the center beam, and an oblong hole is provided near the connection with the side beam to facilitate the welding and observation of the inner cavity. The crossbeam web reinforcement plate is folded into an "L"-shaped structure, which is connected to the crossbeam upper cover plate, crossbeam lower cover plate, crossbeam web plate and side beam respectively, corresponding to the position of the inner column, and an observation hole is set on the crossbeam web reinforcement plate. The crossbeam partition is set between the two crossbeam webs, and the partition close to the side beam corresponds to the position of the inner column. Through the above measures, the connection strength and height of the chassis assembly and the side wall assembly are improved to enhance the anti-external expansion ability of the side wall assembly.

[0019] In one embodiment, each side wall assembly includes a side wall panel, an upper side beam disposed on the top of the side wall panel, a plurality of inner side columns spaced apart on the inner side of the side wall panel, and outer side columns spaced apart on the outer side of the side wall panel;

[0020] The side wall plate comprises an upper side plate and a lower side plate arranged below the upper side plate, and the outer side column is arranged below the upper side plate.

[0021] Specifically, an inner column is set on the inner side of the side wall panel, and a half-height outer column is set below the outer step of the side wall panel. The outer plane of the outer column is aligned with the outer plane of the side wall panel. The upper side panel is externally placed to fully utilize the vehicle clearance width and increase the vehicle volume. By reducing the distance between the inner column or the outer column, the free surface of the side wall panel at the door hole is eliminated to prevent the door hole from deformation and damage.

[0022] The upper side beam is made of cold-bent square steel, overlapped and welded with the upper side plate, butted with the upper end beam at the corner, and the upper side beam and the upper end beam are reinforced with corner reinforcement iron. There are 7 reinforcement devices between the upper side beam and the upper side plate on each side of the car body, and the reinforcement devices correspond to the inner side one by one, which improves the deformation resistance of the upper side beam.

[0023] The reinforcement plate assembly is welded together by double rib plates and guard plates to form a variable-section box-type structure. It is symmetrically arranged on the outer side of the upper side plate along the seam of the upper side plate, welded and fixed to the upper side beam and the upper side plate, and corresponds one to one with the inner column.

[0024] The inner column is welded by the column, transverse reinforcement and vertical reinforcement. The inner column is placed on the inner side of the side wall, between the two door holes, and is welded and fixed with the upper side plate, lower side plate and bottom plate. The column is a variable cross-section cold-bent U-shaped channel steel structure, and transverse reinforcement and vertical reinforcement are set on the inner side of the U-shaped channel to improve the deformation resistance of the inner column.

[0025] The outer column adopts a cold-bent "hat-shaped" structure with internal reinforcement ribs. The outer column is placed outside the lower side plate, between the two door holes, and the outer plane of the outer column is aligned with the outer plane of the side plate. The outer column is welded to the upper side plate and the lower side plate, and riveted to the lower side beam. The outer column and the inner column are combined into a side column structure, and the lower side plate is sandwich-shaped, which increases the cross section of the side column and improves the side wall's ability to resist external expansion.

[0026] The side wall assembly also includes a hook assembly and an escalator assembly. The escalator assembly consists of a connecting plate, an escalator and a support assembly. It is located at one end of the side wall, just above the bottom frame footrest, as a safety handrail for shunting operators. The hook assembly consists of a hook and a hanger assembly. Two hook assemblies are set just above each lower side door to hang the lower side door when it is opened. The hanger is welded and fixed to the upper side plate, and the hook is buckled inward to avoid accidental scratching.

[0027] In one embodiment, an anti-collision column is provided between two adjacent inner columns located on the inner side of the side wall panel.

[0028] Specifically, an anti-collision column is set on the inner side of the upper side plate between the two side columns. The anti-collision column is made of cold-bent channel steel. It is buckled on the inner side of the upper side plate between the two side columns and fixed by welding, which can prevent mechanical unloading facilities from directly colliding and scratching the upper side plate, and improve the side plate's anti-deformation ability.

[0029] In one embodiment, the outer plane of the outer side column is aligned with the outer plane of the side wall panel, and a lower side door is provided between two adjacent outer side columns.

[0030] In one embodiment, the upper portion of the upper side plate narrows inwardly to present a broken line structure, the top of the upper side plate overlaps the upper side beam, and the bottom of the upper side plate is a cold-bent right-angle structure, which is buckled with the lower side plate to form a cold-bent right-angle structure that closes the inner cavity.

[0031] Specifically, the upper side panel is formed by cold bending of the plate. The upper part of the upper side panel narrows inwards and presents a broken line structure, which overlaps with the upper side beam. The lower part is a cold-bent right-angle structure, which is buckled with the lower side panel to form a closed inner cavity, replacing the traditional side wall horizontal strip, maintaining the stability of the side wall, enhancing the overall rigidity of the side wall, and reducing the vehicle's own weight.

[0032] The lower side plate is formed by cold bending of the plate. The upper part of the lower side plate is bent outwards to form a broken line structure, which is buckled with the upper side plate and fixed by welding. The stepped side wall structure is realized with the upper side plate placed outside and the lower side plate placed inside. The lower side plate is provided with a lower door hole between the two side columns, and the side edge of the door hole is only kept at the welding distance from the inner side column, so as to avoid direct knocking and scratching of the lower side plate when unloading by mechanical facilities.

[0033] In one embodiment, the end wall assembly is a plate-column structure, and each end wall assembly includes an end plate, an upper end beam arranged on the end plate, two corner columns arranged on both sides of the end plate, a plurality of horizontal strips arranged transversely on the outer side of the end plate, a plurality of vertical columns arranged longitudinally on the outer side of the end plate, and a corner reinforcement iron arranged on the top of the upper end beam;

[0034] Each corner column is fixedly connected to the base frame assembly.

[0035] In one embodiment, the interval between the uppermost transverse band and the upper end beam, and the interval between two adjacent transverse bands are arranged in a form of being wider at the top and narrower at the bottom.

[0036] Specifically, the upper end beam is arranged horizontally along the width of the vehicle body, the corner columns are arranged vertically on both sides of the end plate, and form a frame structure with the chassis assembly; the transverse belt is arranged horizontally along the width of the vehicle body, and the interval between the transverse belt and the upper end beam, and the interval between the transverse belts are wide at the top and narrow at the bottom, which is beneficial to improve the bearing capacity of the end wall; the columns are arranged vertically in the middle of the end wall, reducing the free area of ​​the end plate and improving the deformation resistance of the end wall.

[0037] Preferably, the upper end beam is made of a 140mm×100mm×5mm cold-bent rectangular steel tube, and the corner reinforcement iron is welded at the junction of the upper side beam and the upper end beam. The corner column is made of a 220mm×140mm×5mm cold-bent rectangular steel tube. The horizontal belt adopts a cap-shaped steel with a cross-sectional height of 130mm, and is arranged horizontally along the vertical direction of the vehicle body with a width at the top and a narrowness at the bottom. The column is a cold-bent channel steel. The end plate is spliced ​​into upper and lower sections, the thickness of the upper end plate is 4mm, and the thickness of the lower end plate is 5mm. The escalator assembly consists of a round steel handrail, a connecting plate and a support, and is a segmented escalator. The support is welded to the end plate and is set on one side of the end wall and directly above the footrest in combination with the height required by ergonomics. The handrail assembly consists of a round steel handrail and a support. The support is welded to the corner column and is set on one side of the end wall in combination with the height required by ergonomics.

[0038] In one embodiment, the braking device includes a manual braking device and a wind braking device.

[0039] Specifically, the manual brake device and the air brake device adopt an integrated air brake device, and the brake modules are connected by hoses to reduce the number of brake pipes and leakage points and improve the braking reliability. The integrated air brake device realizes the integrated installation of the control valve, pressure limiting valve, air storage cylinder and pressure limiting valve. The brake system should at least include a 120-type control valve, a brake cylinder, an air storage cylinder, an ST2-250-type bidirectional brake shoe clearance automatic adjuster, a KZW-A-type empty and loaded vehicle automatic adjustment device, a freight car derailment automatic brake device, a brake hose connector, an A-type stainless steel ball core angle plug gate, a combined dust collector, a brake pipe system, an NSW-I-type hand brake, etc. that meet Chinese standards. Or other brake system components that meet Chinese standards.

[0040] In one embodiment, the bogie is a K6 type bogie or other types of bogies that meet the standards.

[0041] The beneficial effects of the present invention are as follows:

[0042] The welded box structure with the opening facing upward has a "bottle mouth" shape with a small top and a large bottom. The side profile is close to the vehicle limit (GB146.1-2020) with only a certain safety margin, making full use of the limit to increase the cross-sectional area, which is conducive to increasing the vehicle volume. The side profile is a broken line, gradually narrowing upward near the vehicle limit inflection point.

[0043] The upper side plate is formed by cold bending of plate. The upper part of the upper side plate is narrowed inwards, presenting a broken line structure, and overlapped with the upper side beam. The lower part is a cold-bent right-angle structure, which is buckled with the lower side plate to form a closed inner cavity, replacing the traditional side wall horizontal strip, maintaining the stability of the side wall, enhancing the overall rigidity of the side wall, and reducing the vehicle's own weight. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] 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.

[0045] Figure 1 It is a schematic diagram of the structure of the present invention;

[0046] Figure 2 yes Figure 1 Stereoscopic image of

[0047] Figure 3 yes Figure 1 Right view of;

[0048] Figure 4 is a schematic diagram of the structure of the chassis assembly;

[0049] Figure 5 It is a structural diagram of the bolster;

[0050] Figure 6 is a schematic diagram of the structure of the side wall assembly;

[0051] Figure 7 yes Figure 6 Side view of

[0052] Figure 8 is a schematic diagram of the structure of the end wall assembly;

[0053] Reference numerals: 1-hand brake device, 2-coupler buffer device, 3-wind brake device, 4-bogie, 5-underframe assembly, 6-side wall assembly, 7-lower side door, 8-end wall assembly;

[0054] 51-end beam, 52-small beam, 53-pillar beam, 54-measurement, 55-large beam, 56-middle beam, 57-bottom plate;

[0055] 61-upper side beam, 62-inner side column, 63-anti-collision column, 64-upper side plate, 65-lower side plate, 66-outer side column;

[0056] 81-corner column, 82-end plate, 83-upper end beam, 84-cross band, 85-column, 86-escalator assembly, 87-corner reinforcement iron, 88-handrail assembly. DETAILED DESCRIPTION

[0057] In order to make the technical problems, technical solutions and technical effects 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.

[0058] 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.

[0059] 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.

[0060] 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, and therefore cannot be understood as a limitation on the present invention.

[0061] Example 1

[0062] like Figures 1 to 8 As shown, this embodiment provides a large-capacity coke transport railway open car, including a car body, a coupler buffer device 2, a brake device and a bogie 4. The car body is a box structure with an opening facing upward, and the cross section of the car body is a "bottle mouth" shape with a small top and a large bottom. The car body includes a chassis assembly 5, two side wall assemblies 6 symmetrically arranged on both sides of the chassis assembly 5, and two end wall assemblies 8 arranged at both ends of the chassis assembly 5. The bottoms of the two side wall assemblies 6 are close to the vehicle limit of the chassis assembly 5.

[0063] The cross section of the side wall plate of each side wall assembly 6 is in a broken line shape, and the side wall plate of each side wall assembly 6 gradually narrows upward near the vehicle limit turning point.

[0064] Specifically, the box structure with an upward opening is welded together, and the cross section of the car body is in the shape of a "bottle mouth" with a small top and a large bottom. The side profile is close to the locomotive vehicle limit (GB146.1-2020), leaving only a certain safety margin, making full use of the limit to increase the cross-sectional area, which is conducive to increasing the vehicle volume. The side profile is a broken line, gradually narrowing upward near the turning point of the vehicle limit.

[0065] The vehicle body is a full steel welded structure, consisting of a chassis assembly 5, two side wall assemblies 6 on both sides and two end wall assemblies 8. The main material of the vehicle body is Q450NQR1 high-strength weathering steel, and the profiles and plates of the side wall assembly 6, end wall assembly 8 and chassis assembly 5 that are in contact with the cargo are made of Q450EWR1 high-corrosion-resistant and atmospheric corrosion-resistant steel.

[0066] The coupler buffer device 2 shall at least include a 17-type coupler made of E-grade steel, a thickened coupler tongue, a 17-type forged coupler tail frame, an alloy steel coupler tail pin, and an MT-2 or HM-1 type buffer, which shall be in accordance with Chinese standards. Or other couplers and other supporting parts that meet Chinese standards. A coupler support seat stopper with anti-theft function shall be used, and the stopper and impact seat shall be connected with rivets; an anti-jump bolt shall be installed.

[0067] Example 2

[0068] This embodiment is further optimized on the basis of embodiment 1, specifically:

[0069] The chassis assembly 5 includes a bottom plate 57, a middle beam 56 arranged in the middle below the bottom plate 57, two lower side beams arranged on both sides below the bottom, and two end beams 51 arranged at both ends below the bottom; and also includes a plurality of large cross beams 55, a plurality of bolster beams 53, and a plurality of small cross beams 52 symmetrically arranged at both ends of the middle beam 56;

[0070] The large cross beam 55, the pillow block beam 53 and the small cross beam 52 are arranged alternately.

[0071] Specifically, the spacing between the bolsters 53, the major cross beams 55, and the minor cross beams 52 is smaller than that of the existing open wagon, so that the free area of ​​the bottom plate 57 is reduced and the deformation resistance of the bottom plate 57 is improved. The following is a specific structure of the underframe assembly 5:

[0072] The middle beam 56 is made of two pieces of 310 hot-rolled B-shaped steel welded into a "J"-shaped steel, and the material is Q450NQR1 high-strength weathering steel. A front follower plate, a rear follower plate, an integral core plate seat, a partition assembly, etc. are arranged in the inner cavity of the middle beam 56.

[0073] The lower side beam is made of 240×80×8 cold-bent channel steel; a footrest is arranged at one end of the lower side beam; 8 groups of lower side door 7 buckles are evenly arranged on the outer side of the web of the lower side beam to lock the lower side door 7; a traction hook is arranged below each of the two ends of the lower side beam.

[0074] The end beam 51 is composed of the web of the end beam 51, the impact seat, the hook lift rod seat and the angle plug door hanger. The cross section of the web of the end beam 51 is "L" shaped, and its lower flange is fixedly connected to the middle beam 56 and the lower plane of the side beam. The upper part of the web of the end beam 51 is folded into a "Z" structure and connected to the end wall. The impact seat is riveted and fixed to the outer side of the web of the end beam 51, and the hook lift rod seat and the angle plug door hanger are respectively arranged on both sides.

[0075] The bolster 53 is a variable-section box-shaped structure formed by welding double webs, and is arranged on both sides of the center beam 56 along the vehicle body. The cross-section at the connection with the center beam 56 is large, and the cross-section at the connection with the side beam is small. The bolster 53 is mainly welded by: the upper cover plate of the bolster 53, the web plate of the bolster 53, the lower cover plate of the bolster 53, the partition plate of the bolster 53, the web plate reinforcement plate of the bolster 53, the rib plate, etc. The upper cover plate of the bolster 53 is provided with an arc structure at the connection with the center beam 56, and a notch is formed at the connection with the side beam to form a "wrench" shaped structure. The web plate of the bolster 53 is perpendicular to the upper cover plate of the bolster 53 and the lower cover plate of the bolster 53. The web plate of the bolster 53 forms a convex structure at the notch of the upper cover plate, and its upper edge is flush with the plane of the upper cover plate of the bolster 53, that is, the web plate of the bolster 53 is directly connected to the bottom plate at this location. The lower cover plate of the bolster 53 is a folded structure, with an arc structure at the connection with the middle beam 56, and an oblong hole near the connection with the side beam, which is convenient for welding and observation of the inner cavity. The web reinforcement plate of the bolster 53 is folded into an "L"-shaped structure, which is respectively connected to the upper cover plate of the bolster 53, the lower cover plate of the bolster 53, the web of the bolster 53 and the side beam, which corresponds to the position of the inner column 62, and an observation hole is set on the web reinforcement plate of the bolster 53. The partition plate of the bolster 53 is set between the web plates of the two bolsters 53, and the partition plate close to the side beam corresponds to the position of the inner column 62.

[0076] The cross section of the small cross beam 52 adopts an inverted "J"-shaped structure, and its flange is welded and fixed to the lower plane of the bottom plate, and is arranged horizontally along the vehicle body. The spacing between the small cross beams 52 and the spacing between the small cross beams 52 and the large cross beam 55 and the pillow block 53 are smaller than those of existing vehicles, which reduces the free area of ​​the bottom plate and is beneficial to further improve the deformation resistance of the bottom plate.

[0077] Example 3

[0078] This embodiment is further optimized on the basis of embodiment 2, specifically:

[0079] The large cross beam 55 is in the shape of a "wrench", and includes a cross beam lower cover plate, a cross beam web plate, a cross beam upper cover plate, a reinforcement plate and a partition plate, which are welded together to form a variable cross-section box structure;

[0080] Specifically, the crossbeam adopts a variable-section box-type structure formed by welding double webs, and is arranged on both sides of the middle beam 56 along the transverse direction of the vehicle body. The crossbeam has a large cross-section at the connection with the middle beam 56, and a small cross-section at the connection with the side beam. The crossbeam is mainly welded by: a crossbeam upper cover plate, a crossbeam web plate, a crossbeam lower cover plate, a crossbeam partition plate, a crossbeam web plate reinforcement plate, etc. The crossbeam upper cover plate is provided with an arc structure at the connection with the middle beam 56, and a notch is provided at the connection with the side beam to form a "wrench" shaped structure. The crossbeam web is perpendicular to the crossbeam upper cover plate and the crossbeam lower cover plate. The crossbeam web forms a convex structure at the notch of the crossbeam upper cover plate, and its upper edge is flush with the upper plane of the crossbeam upper cover plate, that is, the crossbeam web is directly connected to the bottom plate at this location. The crossbeam lower cover plate is a folding and pressing structure, and a circular arc structure is provided at the connection with the middle beam 56, and an oblong hole is provided near the connection with the side beam to facilitate the welding and observation of the inner cavity. The cross beam web reinforcement plate is folded into an "L"-shaped structure, which is connected to the cross beam upper cover plate, the cross beam lower cover plate, the cross beam web plate and the side beam, respectively, corresponding to the position of the inner column 62, and an observation hole is set on the cross beam web reinforcement plate. The cross beam partition is set between the two cross beam webs, and the partition close to the side beam corresponds to the position of the inner column 62. Through the above measures, the connection strength and height of the bottom frame assembly 5 and the side wall assembly 6 are improved to enhance the anti-external expansion capability of the side wall assembly 6.

[0081] Example 4

[0082] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0083] Each side wall assembly 6 includes a side wall panel, an upper side beam 61 arranged on the top of the side wall panel, a plurality of inner side columns 62 arranged at intervals on the inner side of the side wall panel, and outer side columns 66 arranged at intervals on the outer side of the side wall panel;

[0084] The side wall plate includes an upper side plate 64 and a lower side plate 65 disposed below the upper side plate 64 , and an outer side column 66 is disposed below the upper side plate 64 .

[0085] Specifically, an inner column 62 is arranged on the inner side of the side wall panel, and a half-height outer column 66 is arranged below the outer step of the side wall panel, and the outer plane of the outer column 66 is aligned with the outer plane of the side wall panel. The upper side panel 64 is externally arranged, so that the vehicle clearance width can be fully utilized and the vehicle volume can be increased. By reducing the distance between the inner column 62 or the outer column 66, the free surface of the side wall panel at the door hole is eliminated, so as to prevent the door hole from deformation and damage.

[0086] The upper side beam 61 is made of cold-bent square steel, overlapped and welded with the upper side plate 64, butted with the upper end beam 83 at the corner, and the upper side beam 61 and the upper end beam 83 are reinforced with corner reinforcement iron. Seven reinforcement devices are provided between the upper side beam 61 and the upper side plate 64 on each side of the vehicle body, and the reinforcement devices correspond to the inner side one by one, thereby improving the deformation resistance of the upper side beam 61.

[0087] The reinforcing plate assembly is welded with double ribs and guard plates to form a variable cross-section box structure, symmetrically arranged on the outer side of the upper side plate 64 along the seam of the upper side plate 64, welded and fixed to the upper side beam 61 and the upper side plate 64, and corresponding one to one with the inner column 62.

[0088] The inner column 62 is welded by the column 85, transverse ribs and vertical ribs. The inner side is placed inside the side wall, between the two door holes, and is welded and fixed to the upper side plate 64, the lower side plate 65 and the bottom plate. The column 85 is a variable cross-section cold-bent U-shaped channel steel structure, and transverse ribs and vertical ribs are arranged inside the U-shaped channel to improve the deformation resistance of the inner column 62.

[0089] The outer column 66 adopts a cold-bent "hat-shaped" structure with internal reinforcement ribs. The outer column 66 is placed outside the lower side plate 65, between the two door holes, and the outer plane of the outer column 66 is aligned with the outer plane of the side plate. The outer column 66 is welded and fixed to the upper side plate 64 and the lower side plate 65, and is riveted and fixed to the lower side beam. The outer column 66 and the inner column 62 are combined into a side column structure, and the lower side plate 65 is sandwich-shaped, which increases the cross section of the side column and improves the side wall's ability to resist external expansion.

[0090] The side wall assembly 6 also includes a hook assembly and an escalator assembly 86. The escalator assembly 86 consists of a connecting plate, an escalator and a support assembly. It is located at one end of the side wall, just above the bottom frame footrest, and serves as a safety handrail 88 for shunting operators. The hook assembly consists of a hook and a hanger assembly. Two hook assemblies are arranged just above each lower side door 7 to hang the lower side door 7 when it is opened. The hanger is welded and fixed to the upper side plate 64, and the hook is buckled inward to avoid accidental scratching.

[0091] Example 5

[0092] This embodiment is further optimized on the basis of embodiment 4, specifically:

[0093] An anti-collision column 63 is provided between two adjacent inner columns 62 located on the inner side of the side wall plate.

[0094] Specifically, an anti-collision column 63 is provided inside the upper side plate 64 between the two side columns. The anti-collision column 63 is made of cold-bent channel steel. It is buckled on the inner side of the upper side plate 64 between the two side columns and fixed by welding, which can prevent the mechanical unloading facilities from directly colliding and scratching the upper side plate 64, thereby improving the deformation resistance of the side plate.

[0095] Example 6

[0096] This embodiment is further optimized on the basis of embodiment 4, specifically:

[0097] The outer plane of the outer side column 66 is aligned with the outer plane of the side wall plate, and a lower side door 7 is provided between two adjacent outer side columns 66 .

[0098] The upper part of the upper side plate 64 narrows inwardly and presents a broken line structure. The top of the upper side plate 64 overlaps with the upper side beam 61, and the bottom of the upper side plate 64 is a cold-bent right-angle structure, which is buckled with the lower side plate 65 to form a cold-bent right-angle structure that closes the inner cavity.

[0099] Specifically, the upper side plate 64 is formed by cold bending of a plate. The upper part of the upper side plate 64 is narrowed inwards, presenting a broken line structure, and overlapped with the upper side beam 61. The lower part is a cold-bent right-angle structure, which is buckled with the lower side plate 65 to form a closed inner cavity, replacing the traditional side wall horizontal strip 84, maintaining the stability of the side wall, enhancing the overall rigidity of the side wall, and reducing the vehicle's own weight.

[0100] The lower side plate 65 is formed by cold bending of a plate. The upper part of the lower side plate 65 is bent outward to form a broken line structure, which is buckled with the upper side plate 64 and fixed by welding. A stepped side wall plate structure is realized in which the upper side plate 64 is placed outside and the lower side plate 65 is placed inside. The lower side plate 65 is provided with a lower side door 7 hole between the two side columns, and the side edge of the door hole is only kept at the welding distance from the inner side column 62, so as to avoid direct knocking and scratching of the lower side plate 65 when unloading by mechanical facilities.

[0101] Example 7

[0102] This embodiment is further optimized on the basis of embodiment 6, specifically:

[0103] The end wall assembly 8 is a plate-column structure, and each end wall assembly 8 comprises an end plate 82, an upper end beam 83 arranged on the end plate 82, two corner columns 81 arranged on both sides of the end plate 82, a plurality of horizontal strips 84 arranged transversely on the outer side of the end plate 82, a plurality of vertical columns 85 arranged longitudinally on the outer side of the end plate 82, and a corner reinforcement iron 87 arranged on the top of the upper end beam 83;

[0104] Each corner column 81 is fixedly connected to the base frame assembly 5 .

[0105] The interval between the uppermost transverse strip 84 and the upper end beam 83 and the interval between two adjacent transverse strips 84 are arranged in a form of being wider at the top and narrower at the bottom.

[0106] Specifically, the upper end beam 83 is arranged horizontally along the width of the vehicle body, the corner columns 81 are arranged vertically on both sides of the end plate 82, and form a frame structure with the chassis assembly 5; the transverse strips 84 are arranged horizontally along the width of the vehicle body, and the intervals between the transverse strips 84 and the upper end beams 83 and the intervals between the transverse strips 84 and the transverse strips 84 are wide at the top and narrow at the bottom, which is beneficial to improving the bearing capacity of the end wall; the columns 85 are arranged vertically in the middle of the end wall, reducing the free area of ​​the end plate 82 and improving the deformation resistance of the end wall.

[0107] Preferably, the upper end beam 83 is made of a 140mm×100mm×5mm cold-bent rectangular steel tube, and the corner reinforcement iron is welded at the node between the upper side beam 61 and the upper end beam 83. The corner column 81 is made of a 220mm×140mm×5mm cold-bent rectangular steel tube. The horizontal belt 84 is made of a hat-shaped steel with a cross-sectional height of 130mm, and is arranged horizontally along the vertical direction of the vehicle body with a width at the top and a narrowness at the bottom. The column 85 is a cold-bent channel steel. The end plate 82 is spliced ​​into upper and lower sections, the thickness of the upper end plate 82 is 4mm, and the thickness of the lower end plate 82 is 5mm. The escalator assembly 86 is composed of a round steel handrail, a connecting plate and a support, and is a segmented escalator. The support is welded to the end plate 82 and is set on one side of the end wall and directly above the footrest in combination with the height required by ergonomics. The handrail assembly 88 is composed of a round steel handrail and a support. The support is welded to the corner column 81 and is set on one side of the end wall at a height required by ergonomics.

[0108] Example 8

[0109] This embodiment is further optimized on the basis of embodiment 6, specifically:

[0110] The braking device comprises a manual braking device 1 and a wind braking device 3 .

[0111] Specifically, the manual brake device 1 and the air brake device 3 adopt an integrated air brake device, and the brake modules are connected by hoses to reduce the number of brake pipes and leakage points and improve the braking reliability. The integrated air brake device realizes the integrated installation of the control valve, the pressure limiting valve, the air storage cylinder and the pressure limiting valve. The brake system should at least include a 120-type control valve, a brake cylinder, an air storage cylinder, an ST2-250-type bidirectional brake shoe clearance automatic adjuster, a KZW-A-type empty and loaded vehicle automatic adjustment device, a freight car derailment automatic brake device, a brake hose connector, an A-type stainless steel ball core angle plug gate, a combined dust collector, a brake pipe system, an NSW-I-type hand brake, etc., which meet Chinese standards. Or other brake system components that meet Chinese standards.

[0112] The bogie 4 is a K6 type bogie 4 or other types of bogies 4 that meet the standards.

Claims

1. A large-capacity coke transport railway open car, comprising a car body, a coupler buffer device (2), a brake device and a bogie (4), characterized in that: The vehicle body is a box structure with an opening facing upwards, and the cross section of the vehicle body is in a "bottle mouth" shape with a small top and a large bottom. The vehicle body comprises a chassis assembly (5), two side wall assemblies (6) symmetrically arranged on both sides of the chassis assembly (5), and two end wall assemblies (8) arranged at both ends of the chassis assembly (5), and the bottoms of the two side wall assemblies (6) are close to the vehicle limit of the chassis assembly (5); The cross section of the side wall plate of each of the side wall assemblies (6) is in the shape of a broken line, and the side wall plate of each of the side wall assemblies (6) gradually narrows upward near the vehicle limit turning point.

2. A large-capacity coke transport railway open car according to claim 1, characterized in that: The base frame assembly (5) comprises a bottom plate (57), a middle beam (56) arranged in the middle below the bottom plate (57), two lower side beams arranged on both sides below the bottom, and two end beams (51) arranged at both ends below the bottom; and also comprises a plurality of large cross beams (55), a plurality of bolster beams (53), and a plurality of small cross beams (52) symmetrically arranged at both ends of the middle beam (56); The large cross beam (55), the pillow beam (53), and the small cross beam (52) are arranged in a staggered manner.

3. A large-capacity coke transport railway open car according to claim 2, characterized in that: The large cross beam (55) is in a "wrench" shape and comprises a variable cross-section box-shaped structure formed by welding a cross beam lower cover plate, a cross beam web plate, a cross beam upper cover plate, a reinforcement plate and a partition plate.

4. A large-capacity coke transport railway open car according to claim 2, characterized in that: Each of the side wall assemblies (6) comprises a side wall panel, an upper beam (61) arranged on the top of the side wall panel, a plurality of inner columns (62) arranged at intervals on the inner side of the side wall panel, and outer columns (66) arranged at intervals on the outer side of the side wall panel; The side wall plate comprises an upper side plate (64) and a lower side plate (65) arranged below the upper side plate (64), and the outer side column (66) is arranged below the upper side plate (64).

5. A large-capacity coke transport railway open car according to claim 4, characterized in that: An anti-collision column (63) is provided between two adjacent inner columns (62) located on the inner side of the side wall plate.

6. A large-capacity coke transport railway open car according to claim 4, characterized in that: The outer plane of the outer side column (66) is aligned with the outer plane of the side wall plate, and a lower side door (7) is arranged between two adjacent outer side columns (66).

7. A large-capacity coke transport railway open car according to claim 4, characterized in that: The upper portion of the upper side plate (64) is narrowed inwardly to present a broken line structure. The top of the upper side plate (64) overlaps with the upper side beam (61). The bottom of the upper side plate (64) is a cold-bent right-angle structure. The cold-bent right-angle structure is buckled with the lower side plate (65) to form a cold-bent right-angle structure that closes the inner cavity.

8. A large-capacity coke transport railway open car according to claim 2, characterized in that: The end wall assembly (8) is a plate-column structure, and each end wall assembly (8) comprises an end plate (82), an upper end beam (83) arranged on the end plate (82), two corner columns (81) arranged on both sides of the end plate (82), a plurality of transverse strips (84) arranged transversely on the outside of the end plate (82), a plurality of vertical columns (85) arranged longitudinally on the outside of the end plate (82), and a corner reinforcement iron (87) arranged on the top of the upper end beam (83); Each of the corner posts (81) is fixedly connected to the base frame assembly (5).

9. A large-capacity coke transport railway open car according to claim 8, characterized in that: The interval between the uppermost transverse strip (84) and the upper end beam (83), and the interval between two adjacent transverse strips (84) are arranged in a form of being wider at the top and narrower at the bottom.

10. A large-capacity coke transport railway open car according to claim 1, characterized in that: The braking device comprises a manual braking device (1) and a wind braking device (3).

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