Reinforcing structure of hopper car and hopper car

The hinged reinforcement structure addresses the welding issues in the KM70 coal hopper car's tie rod assembly, enhancing reliability and load-bearing capacity by replacing welded connections with hinged ones, thus reducing maintenance costs and preventing side wall bulging.

CN119117017APending Publication Date: 2024-12-13CRRC TAIYUAN CO LTD

Patent Information

Application Number
CN202411334215.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-24
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The existing KM70 coal hopper car's tie rod assembly, connected via welding, suffers from poor assembly quality and welding defects, leading to frequent breakage of connecting pipes under material impact, reducing load-bearing capacity and increasing maintenance costs.

Method used

A hinged reinforcement structure replaces the welded connection, comprising hingedly connected first and second support components and connecting bodies, enhancing stress performance and eliminating welding-related failures.

Benefits of technology

The hinged connection improves the reliability and load-bearing capacity of the hopper car, preventing side wall bulging and reducing maintenance needs by avoiding welding defects and facilitating assembly and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides a reinforcing structure of a hopper car and the hopper car, and relates to the technical field of hopper car accessories, the reinforcing structure is used for being connected to the interior of a hopper car box of the hopper car, and the reinforcing structure comprises two first support assemblies which are connected to the two sides of the interior of the hopper car box respectively; the second support assembly is connected to the bottom side of the interior of the hopper wagon box; one ends of the two connecting body assemblies are hinged to the two first support assemblies respectively, and the other ends of the two connecting body assemblies are hinged to the second support assemblies; due to the fact that the welding connection mode is omitted, the stress performance is improved, the connecting position is not prone to breakage any more, the reliability of the reinforcing structure is improved, the overall bearing capacity of the hopper car is further improved, and the side wall of the hopper car box is effectively prevented from expanding outwards.
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Description

Technical Field

[0001] The invention belongs to the technical field of hopper car box accessories, and more specifically, relates to a reinforcement structure of a hopper car and the hopper car. Background Art

[0002] As one of the main 70t-class railway freight cars, the KM70 coal hopper car is mainly used to transport bulk goods such as coal and ore. It can meet the needs of power stations, ports, coal preparation, steel and other enterprises with fixed marshaling, recycling and fixed-point loading and unloading.

[0003] The tie rod assembly of the KM70 type coal hopper car is an important component connecting the two side wall panels of the hopper car and the internal backbone of the hopper car, which can effectively prevent the side wall panels from expanding outward and improve the overall load-bearing capacity of the vehicle; the tie rod assembly of the existing KM70 type coal hopper car includes two connecting pipes, two first supports and a second support. The two first supports are respectively connected to the two side wall panels, and the second support is connected to the middle position of the top of the backbone. One end of the two connecting pipes is respectively welded to the two first supports, and the other end of the two connecting pipes is respectively welded to the second supports. The connection method between the connecting pipe and the support adopts a welding structure, in which the connecting pipe adopts The 60mm×5mm 20 steel pipe has an open groove of 50mm in length at both ends, and is fixedly connected to the support by a fillet weld with a welding angle of 4mm; although the existing hopper car has achieved the connection of the connecting pipe, the assembly quality between the connecting pipe and the support is poor when connected by welding, which is prone to poor welding quality. At the same time, coupled with the accumulation and corrosion of coal during use and the squeezing of the connecting pipe by coal during vehicle loading and driving, the welds of some connecting pipes and supports are prone to breakage failures. At this time, the tie rod component will lose its function, causing the side wall to swell outward, reducing the overall load-bearing capacity of the vehicle and increasing the vehicle maintenance cost. Summary of the invention

[0004] The purpose of the present invention is to provide a reinforcement structure of a hopper car and a hopper car in view of the deficiencies in the existing technology, so as to solve the problems proposed in the above background technology that the connecting pipe of the reinforcement structure of the existing hopper car is connected to the support by welding, the welding connection method has poor assembly quality, poor welding quality and the connecting pipe is prone to breakage at the position of some welds under the impact of materials.

[0005] In order to achieve the above object, the present invention provides a reinforcing structure of a hopper car, which is used to be connected inside the hopper car box of the hopper car, and the reinforcing structure includes:

[0006] The two first supports are respectively connected to two sides of the interior of the hopper car box;

[0007] A second support component, wherein the second support component is connected to the inner bottom side of the hopper car box;

[0008] The two connecting bodies are composed of two connecting bodies, one end of which is hingedly connected to the two first supporting bodies respectively, and the other end of which is hingedly connected to the second supporting body.

[0009] Preferably, the first support comprises:

[0010] First seat board;

[0011] Two first reinforcing plates are respectively connected to two sides of the first seat plate. The first seat plate and the first reinforcing plates are provided with first hinge holes, and the first hinge holes are used for passing a first hinge member.

[0012] Preferably, the first support component also includes two pads, which are respectively arranged inside and outside the funnel car box, the inner pad is connected to the first seat plate 21, the inner pad is welded to the funnel car box, and the two pads are connected to the funnel car box by fasteners.

[0013] Preferably, the thickness of the first seat plate is 10 mm, the thickness of the first reinforcement plate is 8 mm, and the diameter of the first hinge hole is 31 mm.

[0014] Preferably, the second support comprises:

[0015] Second seat plate;

[0016] Two pairs of second reinforcing plates, the two pairs of the second reinforcing plates are arranged at intervals on the second seat plate, the two second reinforcing plates of each pair of the second reinforcing plates are respectively connected to the two sides of the second seat plate, and each pair of the second reinforcing plates and the second seat plate are provided with second hinge holes, and the second hinge holes are used to pass the second hinge parts.

[0017] Preferably, the thickness of the second seat plate is 10 mm, the thickness of the second reinforcement plate is 8 mm, and the diameter of the second hinge hole is 31 mm.

[0018] Preferably, the linker composition comprises:

[0019] A connecting pipe, both ends of which are provided with open grooves;

[0020] Two connecting plates, the connecting plates are U-shaped, the convex surfaces of the two connecting plates are respectively connected to the concave surfaces of the two opening grooves, the two sides of each connecting plate and the two sides of one opening groove are provided with connecting hinge holes, and the two first support members are hingedly connected to the inside of the two connecting plates;

[0021] Two pairs of connecting reinforcement plates, the two pairs of connecting reinforcement plates are respectively connected to the two ends of the connecting pipe, the two connecting reinforcement plates of each pair of connecting reinforcement plates are respectively arranged on both sides of an opening groove, and the two connecting reinforcement plates of each pair of connecting reinforcement plates are respectively connected to the two sides of a connecting plate.

[0022] Preferably, the connecting pipe is φ89mm×6mm, and the diameter of the connecting hinge hole is 31mm.

[0023] A hopper car, comprising:

[0024] A hopper car box, the hopper car box comprises a ridgepole and two side wall panels, and two ends of the ridgepole at the bottom of the hopper car box are respectively connected to the two side wall panels;

[0025] The reinforcing structure of the hopper car, the two first support components are respectively connected to the two side wall panels, and the second support component is connected to the middle position of the top of the backbone.

[0026] Preferably, when the second support composition includes a second seat plate and two pairs of second reinforcing plates, the two pairs of second reinforcing plates are arranged at intervals on the second seat plate, the two second reinforcing plates of each pair of second reinforcing plates are respectively connected to the two sides of the second seat plate, and each pair of second reinforcing plates and the second seat plate are provided with a second hinge hole, the hopper car also includes: the second seat plate is welded to the top of the spine, one side of the second reinforcing plate is bent to form a folded plate, a groove is formed between the bottoms of the two folded plates on each pair of the second reinforcing plates, and the spine is embedded in the groove and welded to the inner side of the groove.

[0027] The present invention provides a reinforcement structure of a hopper car and a hopper car, which has the beneficial effects that: one end of the two connecting body components of the reinforcement structure are respectively hingedly connected to the two first support components, and the other ends of the two connecting body components are hingedly connected to the second support component. Since the connecting body component and the first support component and the second support component are all hingedly connected, the original welded connection pull rod component is replaced, and the weld between the connecting pipe and the first support component and the second support component is avoided. The failure of the connecting pipe falling off due to welding defects such as biased welding and leaking welding is avoided, and the maintenance cost is saved. At the same time, the hinged connection method is adopted to improve the stress state of the connecting pipe, reduce assembly constraints, eliminate additional stress, and facilitate assembly, maintenance and repair and replacement. Since the welding connection method is eliminated and the stress performance is improved, the connection position is no longer prone to breakage, thereby improving the reliability of the reinforcement structure, further improving the overall bearing capacity of the hopper car, and effectively preventing the side wall of the hopper car box from bulging outward.

[0028] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present invention.

[0030] Figure 1 A schematic diagram of the front view of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0031] Figure 2 A schematic side structural diagram of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0032] Figure 3 Shows Figure 1 Structural diagram of the middle A direction;

[0033] Figure 4 Shows Figure 1 Schematic diagram of the structure in the B direction;

[0034] Figure 5 A schematic diagram of the main structure of a first support component of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0035] Figure 6 A schematic side structural diagram of a first support component of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0036] Figure 7 A schematic diagram of the main structure of a second support component of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0037] Figure 8 A schematic side structural diagram of a second support assembly of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown;

[0038] Fig. 9 A three-dimensional structural schematic diagram of a reinforcement structure of a hopper car according to an embodiment of the present invention is shown.

[0039] Description of reference numerals:

[0040] 1. Hopper box; 11. Backbone; 12. Side wall panel; 2. First support component; 21. First seat plate; 22. First reinforcement plate; 23. First hinge hole; 24. Pad; 3. Second support component; 31. Second seat plate; 32. Second reinforcement plate; 33. Second hinge hole; 34. Folding plate; 35. Groove; 4. Connector component; 41. Connecting pipe; 42. Connecting plate; 43. Connecting reinforcement plate. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0042] like Figure 1 , Figure 2 and Fig. 9 As shown, the present invention provides a reinforcing structure of a hopper car, which is used to be connected inside the hopper car box 1 of the hopper car, and the reinforcing structure includes:

[0043] Two first support components 2 are respectively connected to two sides of the interior of the hopper car box 1;

[0044] A second support assembly 3, the second support assembly 3 is connected to the inner bottom side of the hopper car box 1;

[0045] The two connecting bodies 4 are respectively hingedly connected at one end to the two first support assemblies 2 , and the other ends of the two connecting bodies 4 are hingedly connected to the second support assemblies 3 .

[0046] Specifically, in order to solve the problems that the connecting pipe of the existing reinforcing structure of the hopper car is connected to the support by welding, the assembly quality of the welding connection method is poor, the welding quality is poor, and the connecting pipe is easily broken at the position of part of the weld under the impact of the material, the present invention provides a reinforcing structure of the hopper car, one end of the two connecting body components 4 of the reinforcing structure is respectively hingedly connected to the two first support components 2, and the other ends of the two connecting body components 4 are hingedly connected to the second support component 3. Since the connecting body component 4 is hingedly connected to the first support component 2 and the second support component 3, the reinforcing structure is provided. It replaces the original welded connection tie rod component, avoids the failure of the connecting pipe to fall off due to welding defects such as offset welding and leaking welding at the weld between the connecting pipe and the first support component and the second support component, and saves maintenance costs. At the same time, the hinged connection method is adopted to improve the stress state of the connecting pipe, reduce assembly constraints, eliminate additional stress, and facilitate assembly, maintenance, repair and replacement. Since the welding connection method is cancelled and the stress performance is improved, the connection position is no longer prone to breakage, which improves the reliability of the reinforced structure, further improves the overall bearing capacity of the hopper car, and effectively prevents the side wall of the hopper car box from expanding outward.

[0047] like Figure 5 and Figure 6 As shown, preferably, the first support component 2 includes:

[0048] A first seat plate 21;

[0049] Two first reinforcing plates 22 are respectively connected to two sides of the first seat plate 21 . The first seat plate 21 and the first reinforcing plates 22 are provided with first hinge holes 23 . The first hinge holes 23 are used for passing the first hinge member.

[0050] Two pads 24 are respectively arranged inside and outside the hopper car box 1, the inner pad 24 is connected to the first seat plate 21, the inner pad 24 is welded to the hopper car box 1, and the two pads 24 are connected to the hopper car box 1 through fasteners.

[0051] Specifically, the two first reinforcing plates 22 are used to strengthen the strength of the first support component 2 .

[0052] Preferably, the first seat plate 21 and the first reinforcement plate 22 are both made of corrosion-resistant steel, the thickness of the first seat plate 21 is 10 mm, the thickness of the first reinforcement plate 22 is 8 mm, and the diameter of the first hinge hole 23 is 31 mm.

[0053] Specifically, the first seat plate 21 and the first reinforcement plate 22 are both made of Q450NQR1 high-strength atmospheric corrosion-resistant steel. The two first reinforcement plates 22 are welded and connected to the two sides of the first seat plate 21, and then drilled with a concentric circle of φ31 mm as a whole, that is, the first hinge hole 23.

[0054] like Figure 7 As shown in the figure, preferably, the second support component 3 includes:

[0055] A second seat plate 31;

[0056] Two pairs of second reinforcing plates 32 are arranged at intervals on the second seat plate 31, and the two second reinforcing plates 32 of each pair of second reinforcing plates 32 are respectively connected to the two sides of the second seat plate 31, and each pair of second reinforcing plates 32 and the second seat plate 31 are provided with second hinge holes 33, and the second hinge holes 33 are used to pass the second hinge parts.

[0057] Specifically, the two pairs of second reinforcing plates 32 are used to strengthen the strength of the second seat plate 31 .

[0058] Preferably, the second seat plate 31 and the second reinforcement plate 32 are both made of corrosion-resistant steel, the thickness of the second seat plate 31 is 10 mm, the thickness of the second reinforcement plate 32 is 8 mm, and the diameter of the second hinge hole 33 is 31 mm.

[0059] Specifically, the second seat plate 31 and the second reinforcement plate 32 are both made of Q450NQR1 high-strength atmospheric corrosion-resistant steel. The two second reinforcement plates 32 of each pair of second reinforcement plates 32 are welded and connected on both sides of the second seat plate 31, and then the whole is drilled with a concentric circle of φ31 mm, that is, the second hinge hole 33.

[0060] like Figure 3 and Figure 4 As shown, preferably, the connector composition 4 includes:

[0061] A connecting pipe 41, both ends of which are provided with open grooves;

[0062] Two connecting plates 42, the connecting plates 42 are U-shaped, the convex surfaces of the two connecting plates 42 are respectively connected to the concave surfaces of the two opening grooves, and the two sides of each connecting plate 42 and the two sides of an opening groove are provided with connecting hinge holes, and the two first support components 2 are hingedly connected to the inside of the two connecting plates 42;

[0063] Two pairs of connecting reinforcing plates 43 are respectively connected to the two ends of the connecting pipe 41, and the two connecting reinforcing plates 43 of each pair of connecting reinforcing plates 43 are respectively arranged on both sides of an open groove, and the two connecting reinforcing plates 43 of each pair of connecting reinforcing plates 43 are respectively connected to the two sides of a connecting plate 42.

[0064] Specifically, the connection plate 42 and the connection reinforcement plate 43 are used to seal the end of the connection pipe 41 and improve its strength, thereby preventing corrosion caused by coal and rainwater entering the connection pipe.

[0065] Preferably, the connecting pipe 41 is φ89 mm×6 mm, and the diameter of the connecting hinge hole is 31 mm.

[0066] Specifically, the connecting pipe 41 adopts a φ89mm×6mm 20 steel pipe or a stainless steel pipe made of T4003, and both ends of the connecting pipe 41 are designed with open grooves with a length of 120mm and a width of 57mm; the U-shaped connecting plate 42 adopts a bending part made of a high-strength atmospheric corrosion-resistant steel plate of Q450NQR1 with a thickness of 10mm or a stainless steel plate made of T4003, and its total length is 130mm; the connecting reinforcement plate 43 adopts a high-strength atmospheric corrosion-resistant steel plate of Q450NQR1 with a thickness of 5mm or a stainless steel plate made of T4003; the two U-shaped connecting plates 42 are assembled with the open grooves at both ends of the connecting pipe 41 and then welded, and the connecting reinforcement plate 43 is welded to the connecting pipe 41 and the U-shaped connecting plate 42 to form a sealing structure, which improves the strength while preventing coal and rainwater from entering the connecting pipe 41 to cause corrosion, and then the two ends are integrally drilled with concentric circles of φ31mm, that is, the connecting hinge holes 43.

[0067] In order to solve the problem that the welding length between the existing connecting pipe and the support is short and the wall of the connecting pipe is thin, which easily leads to breakage of the connecting pipe and the connection position, the connecting pipe 41 of the present application adopts a 20 steel pipe or stainless steel pipe with increased diameter and wall thickness, thereby improving the connection strength of the connecting pipe 41.

[0068] A hopper car, comprising:

[0069] The hopper car box 1 comprises a ridgepole 11 and two side wall panels 12, and two ends of the ridgepole 11 at the bottom of the hopper car box 1 are respectively connected to the two side wall panels 12;

[0070] The reinforcing structure of the hopper car comprises two first support components 1 connected to two side wall panels 12 respectively, and a second support component 3 connected to the top middle position of the backbone 11.

[0071] Preferably, when the second support component 3 includes a second seat plate 31 and two pairs of second reinforcing plates 32, the two pairs of second reinforcing plates 32 are arranged at intervals on the second seat plate 31, the two second reinforcing plates 32 of each pair of second reinforcing plates 32 are respectively connected to the two sides of the second seat plate 32, and each pair of second reinforcing plates 32 and the second seat plate 31 are provided with second hinge holes 33, the hopper car also includes: the second seat plate 31 is welded to the top of the spine 11, one side of the second reinforcing plate 32 is bent to form a folded plate 34, a groove 35 is formed between the bottom of the two folded plates 34 on each pair of second reinforcing plates 32, and the spine 11 is embedded in the groove 35 and welded to the inner side of the groove 35.

[0072] Specifically, the coal loading equipment mainly includes hoppers and loaders. Loaders are also called shovels. Small-scale coal loading points generally use loaders for loading, and some large-scale coal loading points also use multiple loaders for loading at the same time. The bucket of the loader will enter the hopper car box 1 during the loading process. If a cross-tie rod device directly connected to the two side walls is used, the bucket may cause damage to the cross-tie rod during the loading process. Therefore, the present application designs the reinforced structure as a V-shaped hinged structure connecting the two side wall panels 12 and the spine 11, which can effectively avoid damage to the connecting pipe 41 caused by the loader during the coal loading process.

[0073] The V-shaped hinged structure is mainly used for KM70 type coal hopper car and is installed on the side wall panels 12 of the KM70 type coal hopper car and the bottom ridge 11 of the hopper car box 1. It can prevent the side wall panels 12 from expanding outward due to the breakage of the V-shaped hinged structure, thereby improving the overall load-bearing capacity of the hopper car and facilitating assembly by the staff.

[0074] In summary, when the reinforcement structure of the present invention is assembled on a hopper car, the steps are as follows:

[0075] First, weld the second support assembly 3 to the ridge beam 11 in the hopper car box 1;

[0076] The pad 24 in the hopper compartment 1 is fixed to the side wall panel 12 by welding. The pad 24 is made of high-strength atmospheric corrosion-resistant steel Q450NQR1, with a thickness of 6mm and a 8×21 connection hole drilled therein. The pad 24 in the hopper compartment 1 is connected to the pad 24 outside the hopper compartment by M20×50 bolts and M20 nuts to improve the anti-external expansion capability of the side wall panel 12.

[0077] The connecting pipe 41 is connected to the first seat plate 21 and the second seat plate 31 by using M30×130 bolts and M30 nuts or using 30×95 flat hole round pins and flat cotter pins that meet the CRRC standard Q / QC56-125; two washers 30 that meet GB / T95 are respectively installed between the U-shaped connecting plate 42 and the first seat plate 21, and two washers 30 that meet GB / T95 are also respectively installed between the U-shaped connecting plate 42 and the second seat plate 31, so as to reduce the gap between the U-shaped connecting plate 42 and the first seat plate 21 and the second seat plate 31;

[0078] Finally, the first seat plate 21 is fixed to the pad 24 inside the hopper carriage 1 by welding.

[0079] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A reinforcing structure of a hopper car, used to be connected inside the hopper car box of the hopper car, characterized in that: The reinforcement structure includes: The two first supports are respectively connected to two sides of the interior of the hopper car box; A second support component, wherein the second support component is connected to the inner bottom side of the hopper car box; The two connecting bodies are composed of two connecting bodies, one end of which is hingedly connected to the two first supporting bodies respectively, and the other end of which is hingedly connected to the second supporting body.

2. The reinforcement structure of a hopper car according to claim 1, characterized in that: The first support comprises: First seat board; Two first reinforcing plates are respectively connected to two sides of the first seat plate. The first seat plate and the first reinforcing plates are provided with first hinge holes, and the first hinge holes are used for passing a first hinge member.

3. The reinforcement structure of a hopper car according to claim 2, characterized in that: The first support component also includes two pads, which are respectively arranged inside and outside the funnel car box, the inner pad is connected to the first seat plate 21, the inner pad is welded to the funnel car box, and the two pads are connected to the funnel car box by fasteners.

4. The reinforcement structure of a hopper car according to claim 3, characterized in that: The thickness of the first seat plate is 10 mm, the thickness of the first reinforcement plate is 8 mm, and the diameter of the first hinge hole is 31 mm.

5. The reinforcement structure of a hopper car according to claim 1, characterized in that: The second support comprises: Second seat plate; Two pairs of second reinforcing plates, the two pairs of the second reinforcing plates are arranged at intervals on the second seat plate, the two second reinforcing plates of each pair of the second reinforcing plates are respectively connected to the two sides of the second seat plate, and each pair of the second reinforcing plates and the second seat plate are provided with second hinge holes, and the second hinge holes are used to pass the second hinge parts.

6. The reinforcement structure of a hopper car according to claim 5, characterized in that: The thickness of the second seat plate is 10 mm, the thickness of the second reinforcement plate is 8 mm, and the diameter of the second hinge hole is 31 mm.

7. The reinforcement structure of a hopper car according to claim 1, characterized in that: The connector composition comprises: A connecting pipe, both ends of which are provided with open grooves; Two connecting plates, the connecting plates are U-shaped, the convex surfaces of the two connecting plates are respectively connected to the concave surfaces of the two opening grooves, the two sides of each connecting plate and the two sides of one opening groove are provided with connecting hinge holes, and the two first support members are hingedly connected to the inside of the two connecting plates; Two pairs of connecting reinforcement plates, the two pairs of connecting reinforcement plates are respectively connected to the two ends of the connecting pipe, the two connecting reinforcement plates of each pair of connecting reinforcement plates are respectively arranged on both sides of an opening groove, and the two connecting reinforcement plates of each pair of connecting reinforcement plates are respectively connected to the two sides of a connecting plate.

8. The reinforcement structure of a hopper car according to claim 7, characterized in that: The connecting pipe is The diameter of the connecting hinge hole is 31 mm.

9. A hopper car, characterized in that: include: A hopper car box, the hopper car box comprises a ridgepole and two side wall panels, and two ends of the ridgepole at the bottom of the hopper car box are respectively connected to the two side wall panels; According to the reinforcement structure of a hopper car according to any one of claims 1 to 9, the two first support components are respectively connected to the two side wall panels, and the second support component is connected to the middle position of the top of the spine.

10. A hopper car according to claim 9, characterized in that: When the second support composition includes a second seat plate and two pairs of second reinforcing plates, the two pairs of second reinforcing plates are arranged at intervals on the second seat plate, the two second reinforcing plates of each pair of second reinforcing plates are respectively connected to the two sides of the second seat plate, and each pair of second reinforcing plates and the second seat plate are provided with second hinge holes, the hopper car also includes: the second seat plate is welded to the top of the spine, one side of the second reinforcing plate is bent to form a folded plate, a groove is formed between the bottoms of the two folded plates on each pair of the second reinforcing plates, and the spine is embedded in the groove and welded to the inner side of the groove.

Citation Information

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