Hopper car body and hopper car

Abstract

The utility model discloses a hopper car's car body and hopper car, and the car body includes: chassis, side wall and end wall. Among them, side wall and end wall are installed on the chassis, and side wall and end wall are arranged alternately, and the containing space of containing material is surrounded. Side wall and end wall all include the first structural layer and the second structural layer of stacking, and the first structural layer and the second structural layer are all the fiber composite material layer, and the side of first structural layer back to the second structural layer is close to the containing space, and the side of second structural layer back to the first structural layer is far from the containing space. The first structural layer and the second structural layer of side wall and end wall of the utility model are made of the fiber composite material layer, effectively reduce the weight of car body, thereby reduce the overall weight of hopper car's car body, so as to facilitate the lightweight design of hopper car of the car body provided in this embodiment, improve transportation economic benefits.

Description

Technical Field

[0001] This utility model relates to the technical field of railway transportation, and in particular to a hopper car body and a hopper car. Background Technology

[0002] Currently, hopper cars use steel bodies, resulting in significant weight and relatively small volume and load capacity. To achieve greater transportation efficiency, railway transport companies urgently require lightweight designs for railway freight cars to increase their load per linear meter. Utility Model Content

[0003] In view of this, the present invention provides a hopper car body that can reduce the weight of the car body and improve the transport capacity of the hopper car. Furthermore, the present invention also provides a hopper car having the aforementioned hopper car body.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A hopper cart body includes: a base frame, side walls, and end walls; both the side walls and the end walls are mounted on the base frame, and the side walls and end walls are arranged alternately to enclose a receiving space for accommodating materials; both the side walls and the end walls include a first structural layer and a second structural layer stacked together, the first structural layer and the second structural layer being fiber composite material layers, the side of the first structural layer facing away from the second structural layer being close to the receiving space, and the side of the second structural layer facing away from the first structural layer being away from the receiving space.

[0006] Preferably, in the body of the aforementioned funnel car, the sidewall comprises: a sidewall body, wherein a sandwich layer is filled between the first structural layer and the second structural layer of the sidewall body; an edge region, wherein the edge region is located at the lower part and both sides of the sidewall body, and the first structural layer and the second structural layer in the edge region are laminated together; and a transition region, wherein the transition region is located between the sidewall body and the edge region, and the transition region connects the sidewall body and the edge region, wherein a sandwich layer is filled between the first structural layer and the second structural layer in the transition region, and the thickness of the sandwich layer in the transition region gradually decreases from the sidewall body towards the edge region.

[0007] Preferably, in the body of the funnel car described above, the side wall near the accommodating space is a plane, the thickness of the main body of the side wall is greater than the thickness of the edge region, the thickness of the end of the transition region used to connect with the main body of the side wall is the same as the thickness of the main body of the side wall, and the thickness of the end of the transition region used to connect with the edge region is the same as the thickness of the edge region.

[0008] Preferably, in the body of the aforementioned funnel car, the end wall includes: an end wall plate, the end wall plate including an end wall body and an upper connecting plate, the end wall body being mounted on the base frame, the end wall body being arranged at an inclination relative to the plane of the base frame, and the upper connecting plate being connected to the end of the end wall body away from the base frame; the end wall body includes a first region and a second region, a sandwich layer being filled between the first structural layer and the second structural layer in the first region, and the first structural layer and the second structural layer being connected in the second region;

[0009] A support assembly, one end of which is mounted on the base frame, the support assembly being tilted in the opposite direction to the end wall body, and the end of the support assembly away from the base frame being connected to the end wall body;

[0010] A connecting seat is disposed at the end of the upper connecting plate away from the base frame.

[0011] Preferably, in the body of the funnel car described above, the first region includes at least an upper interlayer region and a lower interlayer region, the upper interlayer region and the lower interlayer region are arranged along the height direction of the end wall body, the upper interlayer region is connected to the upper connecting plate, and the lower interlayer region is connected to the base frame;

[0012] The second region includes at least one of the following:

[0013] An intermediate connecting region is located between the upper mezzanine region and the lower mezzanine region, and the support component is connected to the intermediate connecting region;

[0014] The lower connecting region located on the side of the lower interlayer region away from the upper interlayer region;

[0015] The side-connecting areas are located at the two sides of the first region, and the first region is located between the two side-connecting areas;

[0016] The upper connecting plate.

[0017] Preferably, in the body of the funnel car described above, the side of the end wall panel closest to the accommodating space is a plane;

[0018] The first structural layer of the first region protrudes from the first structural layer of the second region in a direction away from the accommodating space.

[0019] Preferably, in the body of the funnel car described above, the height of the side wall in the direction perpendicular to the plane of the base frame is greater than the height of the end wall in the direction perpendicular to the plane of the base frame.

[0020] Preferably, in the body of the above-mentioned funnel car, the base frame is a metal frame structure, and the base frame is detachably and fixedly connected to the side wall; the base frame is detachably and fixedly connected to the end wall.

[0021] Preferably, the body of the aforementioned funnel car further includes a partition, which is disposed within the accommodating space, is detachably connected to the side wall, and is welded to the base frame.

[0022] A funnel cart includes a cart body, wherein the cart body is any of the cart bodies described above.

[0023] This utility model embodiment discloses a hopper car body, including side walls and end walls. The side walls and end walls are made of a first structural layer and a second structural layer of fiber composite material, which effectively reduces the weight of the car body and thus reduces the overall weight of the hopper car body. This facilitates the application of the lightweight design of the hopper car body provided in this embodiment, thereby improving transportation economic efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a front view of the body of the funnel cart disclosed in this embodiment of the utility model;

[0026] Figure 2 for Figure 1 A magnified view of part A in the image;

[0027] Figure 3 This is a side view of the body of the funnel cart disclosed in this embodiment of the utility model;

[0028] Figure 4 This is a partial structural diagram of the body of the funnel cart disclosed in an embodiment of the present utility model;

[0029] Figure 5 This is a partial sectional view of the body of the funnel cart disclosed in this embodiment of the utility model;

[0030] Figure 6 This is a front view of the side wall of the funnel cart disclosed in an embodiment of the present utility model;

[0031] Figure 7 This is a front view of the end wall of the funnel cart disclosed in an embodiment of the present utility model;

[0032] Figure 8 This is a schematic diagram of the end wall structure of the funnel cart disclosed in an embodiment of the present utility model;

[0033] Figure 9 This is a schematic diagram of the end wall plate of the funnel cart disclosed in an embodiment of the present utility model;

[0034] Figure 10 This is a front view of the partition of the funnel cart disclosed in this embodiment of the utility model. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] Hopper car transportation has advantages such as high unloading efficiency, low overall investment, low daily operating costs, and good working conditions. Using hopper cars to transport bulk cargo such as coal is a relatively economical transportation method, which has become a consensus among foreign railway transportation companies. Especially on lines that are close to mining areas, have large transport volumes, and have fixed coal transport sections, the overall transportation benefits are even more obvious.

[0038] Currently, hopper cars use steel bodies, resulting in significant weight and relatively small volume and load capacity. To achieve greater transportation efficiency, railway transport companies urgently require lightweight designs for railway freight cars to increase their load per linear meter.

[0039] Based on this, this application discloses a hopper car body, in which the side walls and end walls of the car body are made of fiber-reinforced resin matrix composite material, thereby reducing the weight of the car body while ensuring its strength.

[0040] like Figures 1 to 4 As shown, the truck body of this application embodiment includes: a chassis 1, a side wall 2, a bottom door opening and closing mechanism 3, a bottom door 4, and an end wall 5.

[0041] The side wall 2 extends along a first direction, and the end wall 5 extends along a second direction. Both the side wall 2 and the end wall 5 are mounted on the base frame 1. The first and second directions are intersecting directions. Optionally, the first and second directions are perpendicular and parallel to the plane of the base frame 1. Optionally, the third direction in this paper is a direction perpendicular to the base frame 1, which can be understood as the height direction of the hopper car.

[0042] In some embodiments, there are two side walls 2 and two end walls 5, with the two side walls 2 arranged opposite each other along a second direction and the two end walls 5 arranged opposite each other along a first direction. The side walls 2 and end walls 5 are arranged alternately and are sequentially fixedly connected to form a closed structure. The side walls 2, end walls 5, and the underframe 1 enclose the cargo space of the truck body, which is used to place the goods transported by the truck. It should be noted that, in this document, the side walls 2 and end walls 5 are sequentially connected to form the side panels of the truck body.

[0043] The hopper car has a unloading hopper opening at the bottom of the car body between two bogies (not shown in the figure), and a bottom door 4 is provided at the unloading hopper opening. The bottom door 4 is connected to the bottom door opening and closing mechanism 3.

[0044] After the bottom door 4 is opened by the bottom door opening and closing mechanism 3, the bulk cargo loaded inside the car falls under the weight of the cargo and flows out through the hopper opening. The car body of the hopper car not only needs to bear the pressure load of the bulk cargo inside the car, but also needs to withstand the inertial impact load generated by the train starting, braking, curves, slopes, acceleration, deceleration and other conditions during the operation of the vehicle.

[0045] Combination Figure 5 As shown, in this embodiment, both the side wall 2 and the end wall 5 include a first structural layer 10 and a second structural layer 20 stacked together. Both the first structural layer 10 and the second structural layer 20 are fiber composite material layers. The side of the first structural layer 10 facing away from the second structural layer 20 is closer to the accommodating space, while the side of the second structural layer 20 facing away from the first structural layer 10 is farther from the accommodating space.

[0046] Optionally, the fiber composite layer includes fibers and a thermoplastic resin matrix. The fibers can be carbon fiber, glass fiber, or aramid fiber, and the thermoplastic resin matrix can be polypropylene (PP), polyethylene (PE), or nylon (PA). It is understood that in this embodiment, the first structural layer 10 and the second structural layer 20 are made of carbon fiber composite material or fiber-reinforced resin matrix composite material.

[0047] The hopper car body provided in this embodiment effectively reduces the weight of the car body by using a first structural layer 10 and a second structural layer 20 made of fiber composite material, thereby reducing the overall weight of the hopper car body. This facilitates the application of the lightweight design of the hopper car body provided in this embodiment and improves transportation economic efficiency.

[0048] Combination Figure 6 As shown, the side wall 2 in this embodiment includes: side wall body 201, transition area 202 and edge area 203.

[0049] The sidewall body 201 is the main structure of the sidewall 2, and its shape can be customized to match the required shape of the sidewall 2 of the funnel cart. In this embodiment, an interlayer 30 is filled between the first structural layer 10 and the second structural layer 20 of the sidewall body 201. The interlayer 30 between the first structural layer 10 and the second structural layer 20 of the sidewall body 201 can improve the strength of the sidewall body 201, thereby giving the sidewall 2 a higher load-bearing capacity.

[0050] Edge region 203 is the side of sidewall body 201. Optionally, the bottom surface and both sides of sidewall body 201 have edge region 203. In this embodiment, the first structural layer 10 and the second structural layer 20 located in edge region 203 are laminated together, so that edge region 203 forms a solid laminate structure.

[0051] The transition zone 202 is located between the sidewall body 201 and the edge zone 203, and connects the sidewall body 201 and the edge zone 203. The dimension of the transition zone 202 extending between the sidewall body 201 and the edge zone 203 is not specifically limited. In this embodiment, an interlayer 30 is filled between the first structural layer 10 and the second structural layer 20 in the transition zone 202, and the thickness of the interlayer 30 in the transition zone 202 gradually decreases from the sidewall body 201 towards the edge zone 203. The interlayer 30 between the first structural layer 10 and the second structural layer 20 of the transition zone 202 improves the strength of the transition zone 202, thereby giving the sidewall 2 a higher load-bearing capacity. The variation in the thickness of the interlayer 30 in the transition zone 202 serves to connect the sidewall body 201 and the edge zone 203 using the transition zone 202.

[0052] It should be noted that the interlayer 30 in this paper can be formed of foam material, that is, by filling the space between the first structural layer 10 and the second structural layer 20 with rigid closed-cell foam (rigid closed-cell PMI (polymethacrylimide) foam) or other types of foam to form a filled interlayer 30. By setting the interlayer 30, it is possible to withstand pressure loads (such as the lateral pressure loads exerted on the end wall panel 501 by bulk cargo such as coal inside the vehicle).

[0053] The first structural layer 10 and the second structural layer 20 of the sidewall 2 can be constructed using a laminated design of 2mm to 4mm thick carbon fiber reinforced resin matrix composite material. Specifically, at least one of the first structural layer 10 and the second structural layer 20 is formed by laminating multiple composite material layers using a laminated design. Multiple fiber layers are laid up along the thickness direction of the first structural layer 10 and the second structural layer 20 at specific angles (e.g., 0°, ±45°, 90°, etc.) and in a specific sequence, and then bonded together by resin curing to form a composite material laminate (first structural layer 10 or second structural layer 20). Combined with the thickness of the filling interlayer 30, the thickness of the sidewall main body 201 can range from 30mm to 50mm. The thickness of the edge region 203 is the sum of the thicknesses of the first structural layer 10 and the second structural layer 20. The thickness of the end of the transition zone 202 that connects to the side wall body 201 is the same as the thickness of the side wall body 201, and the thickness of the end of the transition zone 202 that connects to the edge zone 203 is the same as the thickness of the edge zone 203.

[0054] Taking carbon fiber composites as an example, the tensile strength of carbon fiber composites can generally reach over 1000 MPa, while the existing hopper car bodies are generally made of Q450NQR1 high-strength steel (tensile strength of 550 MPa) or 6061-T6 aluminum alloy (tensile strength of 265 MPa). Therefore, using carbon fiber composites can achieve both lightweighting of the car body and increased strength reserves. Furthermore, the density of carbon fiber composites is only 1 / 4 that of steel and 2 / 3 that of aluminum alloy, thus adapting to the increasing load requirements of railway freight cars, especially heavy-haul freight cars.

[0055] In some embodiments, the sidewall 2 closest to the accommodating space is flat, without any protrusions or corner structures. This can be understood as the first structural layer 10 of the sidewall main body 201, the first structural layer 10 of the edge area 203, and the first structural layer 10 of the transition area 202 being flush. The flatness of the sidewall 2 closest to the accommodating space avoids the possibility of accumulation or freezing of bulk goods such as coal.

[0056] The outer side of the side wall 2 has a stepped planar structure, and the second structural layer 20 of the main body of the side wall 201 protrudes away from the first structural layer 10 based on the first structural layer 10.

[0057] This embodiment eliminates the side pillars of the plate-and-column structure vehicle body sidewall, so that only the necessary safety margin needs to be left between the sidewall 2 and the vehicle clearance. The vehicle clearance can be fully utilized, and compared with the existing technical solution, the vehicle has a larger carrying space under the same vehicle length and height conditions.

[0058] Combination Figures 7 to 9As shown, the end wall 5 in this embodiment includes: an end wall plate 501, a support assembly 502, and a connecting seat 503. The end wall plate 501 includes an end wall body 5011 and an upper connecting plate 5012. The end wall body 5011 includes a first region 01 and a second region 02.

[0059] The end wall body 5011 is mounted on the base frame 1 and is arranged at an angle relative to the plane of the base frame 1. One end of the support component 502 is mounted on the base frame 1, and the angle of the support component 502 is opposite to that of the end wall body 5011. The end of the support component 502 away from the base frame 1 is connected to the end wall body 5011.

[0060] The support component 502 is tilted in the opposite direction to the end wall body 5011 and is connected to it, so that the support component 502, the end wall body 5011 and the base frame 1 are connected in a triangular structure, which is beneficial to improving the strength of the end wall body 5011.

[0061] The upper connecting plate 5012 is connected to the end of the end wall body 5011 away from the base frame 1, and the connecting seat 503 is located at the end of the upper connecting plate 5012 away from the base frame 1.

[0062] In this embodiment, an interlayer 30 is filled between the first structural layer 10 and the second structural layer 20 located in the first region 01 on the end wall body 5011, and the first structural layer 10 and the second structural layer 20 located in the second region 02 are connected.

[0063] The materials of the first structural layer 10, the second structural layer 20, and the interlayer 30 can be found in the foregoing.

[0064] like Figure 9 As shown, the first region 01 of the end wall body 5011 includes at least: an upper mezzanine region 50111 and a lower mezzanine region 50112. The second region 02 of the end wall body 5011 includes at least: an upper connecting plate 5012, an intermediate connecting region 50113, a lower connecting region 50114, and a side connecting region 50115.

[0065] The upper mezzanine region 50111 and the lower mezzanine region 50112 are arranged along the height direction of the end wall body 5011. The upper mezzanine region 50111 is connected to the upper connecting plate 5012, and the lower mezzanine region 50112 is connected to the base frame 1.

[0066] The intermediate connecting region 50113 is located between the upper mezzanine region 50111 and the lower mezzanine region 50112. Optionally, the support component 502 is connected to the intermediate connecting region 50113. The connection between the intermediate connecting region 50113 and the support component 502 facilitates the formation of a support point in the middle part of the end wall plate 501 along the height direction (which can be at the exact center or not at the exact center, but rather between the two sides of the end wall plate 501 along the height direction), thereby effectively improving the support effect of the end wall plate 501 and reducing the bending deformation of the end wall plate 501.

[0067] The lower connecting area 50114 is located on the side of the lower mezzanine area 50112 away from the upper mezzanine area 50111. The end wall plate 501 is connected to the base frame 1 through the lower connecting area 50114. Optionally, the lower connecting area 50114 and the base frame 1 are connected by riveting or other means to achieve the effect of fixing the bottom of the end wall plate 501.

[0068] The side connection areas 50115 are located at the two edges of the first area 01, and the first area 01 is located between the two side connection areas 50115. The side connection areas 50115 can be connected to the side wall 2 of the vehicle body by riveting or other means to achieve the fixing effect on both sides of the opposite end wall panel 501.

[0069] The upper connecting plate 5012 can be arranged perpendicular to the base frame 1. Both ends of the upper connecting plate 5012 along the second direction are provided with...

[0070] Since the connecting seat 503 is connected to the top edge of the upper connecting plate 5012, the connecting seat 503 can be higher than the end wall plate 501. When the end wall plate 501 is assembled with the vehicle body, the side beam connected to the side wall 2 of the vehicle body can be connected to the connecting seat 503 to achieve a connection and fixation of the top of the end wall plate 501. This allows the height of the side wall 2 to be higher than the height of the end wall plate 501; that is, the side wall 2 and the end wall 5 are not of equal height, and the height of the side wall 2 is higher than the end wall 5. This allows for adaptation to the loading height requirements of a hopper car with an increased vehicle body height (increased side wall 2 height) without changing the height of the end wall 5 of the hopper car. When the height of the upper side beam of the side wall 2 (located in the area above the side wall 2) is higher than the end wall plate 501, the end wall plate 501 can be connected to the upper side beam via the connecting seat 503 through riveting or welding to achieve a fixing effect on the top of the end wall plate 501.

[0071] The side of the end wall panel 501 closest to the accommodating space is flat, without any protrusions or corner structures. This can be understood as the first structural layer 10 of the first region 01 and the second region 02 of the end wall panel 501 being flush. The flatness of the side of the end wall panel 501 closest to the accommodating space prevents the accumulation or freezing of bulk goods such as coal. Furthermore, the flatness of the side of the end wall panel 501 closest to the accommodating space also facilitates the unloading of granular goods by moving along the inner side of the end wall panel 501 under gravity.

[0072] To reduce stress concentration, a transition region (not shown in the figure) can be provided between the first region 01 and the second region 02, with an interlayer 30 between the first structural layer 10 and the second structural layer 20 located in the transition region. The thickness of the interlayer 30 in the transition region decreases from the first region 01 to the second region 02. The thickness of the interlayer 30 in the transition region near the first region 01 is the same as the thickness of the interlayer 30 in the first region 01. That is, the cross-section of the portion of the first structural layer 10 corresponding to the first region 01 and the transition region can be a trapezoidal structure, and the interlayer 30 in the transition region and the interlayer 30 in the first region 01 can be an integral structure, so that a structural transition is formed from the first region 01 to the second region 02, avoiding stress concentration. It can be understood that from the first region 01 to the second region 02, the interlayer 30 forms a sloping structure, and the first region 01 with the interlayer 30 gradually and uniformly transitions to the second region 02, which is a solid laminate.

[0073] In some embodiments, the thickness of the first region 01 of the end wall panel 501 ranges from 40mm to 70mm, and the thickness of the second region 02 is the sum of the thicknesses of the first structural layer 10 and the second structural layer 20.

[0074] In this embodiment, both the end wall plate 501 and the side wall 2 can be integrally hot-pressed structures, with the first structural layer 10 and the second structural layer 20 connected by hot pressing. That is, the end wall plate 501 and the side wall 2 can each be integrally molded to form a composite material sandwich structure, improving the bending strength of the end wall plate 501 and the side wall 2 in all directions. Furthermore, by setting the end wall plate 501 and the side wall 2 as integrally hot-pressed structures, the number of parts in the hopper car body is significantly reduced, and the manufacturing processes such as welding or riveting during car body processing are reduced, effectively simplifying the manufacturing process of the hopper car body and shortening the production cycle of the hopper car body.

[0075] In some embodiments, taking the first structural layer 10 and the second structural layer 20 as using 2mm to 4mm thick carbon fiber reinforced resin matrix composite prepreg, and the interlayer 30 as using rigid closed-cell PMI foam, in the process of integrally thermoforming the composite sandwich structure, firstly, the prepreg of the second structural layer 20 is laid layer by layer on the pre-made mold surface to a specified thickness. Then, a foam layer of a specified shape is applied to the laid second structural layer 20. Next, the prepreg of the first structural layer 10 is laid on the foam layer and the second structural layer 20 to a specified thickness. Then, the completed composite sandwich structure assembly, together with the mold, is placed in a thermostatic precipitator or oven. The intermediate connecting area is heated and pressurized in the thermostatic precipitator for a certain period of time until the resin matrix material completes the chemical curing reaction, and the composite sandwich structure forms an integral structure. Finally, the cured composite sandwich structure blank is demolded, polished, and punctured, etc., to complete the processing and manufacturing of the side wall 2 or end wall 5 of the composite sandwich structure.

[0076] It should be noted that the materials used in the vehicle body of this embodiment for the parts that come into contact with coal and other goods (side wall 2 and end wall 5) are non-metallic fiber-reinforced resin-based composite materials, which have better thermal insulation performance than metal materials. This can significantly improve the problem of coal freezing during winter transportation of coal trucks and improve the unloading efficiency of the vehicle.

[0077] Combination Figure 7 and Figure 8 As shown, the support assembly 502 includes an end plate 5021 and an end column 5022.

[0078] One end of the end plate 5021 is connected to the end wall plate 501, and the other end is connected to the base frame 1. The end plate 5021 is arranged at an angle to the plane of the base frame 1.

[0079] The end post 5022 is connected to the end plate 5021 and the end post 5022 extends along the height direction of the end plate 5021.

[0080] The side edge of the end plate 5021 can be aligned with the side edge of the end wall plate 501, that is, the dimension of the end plate 5021 along the second direction is the same as the dimension of the end wall plate 501 along the second direction. This arrangement increases the area of ​​the end plate 5021 supporting the end wall plate 501, thereby improving the stability of the end wall plate 501.

[0081] The number and size of the end posts 5022 can be set according to different needs. The end posts 5022 and the end plates 5021 can be welded or integrally formed.

[0082] like Figure 9 As shown, the body of the funnel car also includes a partition 6.

[0083] The partition 6 is installed in the accommodating space and is detachably connected to the side wall 2. The partition 6 is welded to the base frame 1.

[0084] By setting up partitions 6 and connecting them to the side walls 2 and the underframe 1, the connection rigidity between the side walls 2 on both sides of the vehicle body can be enhanced, increasing the resistance of the side walls 2 to external expansion. Optionally, three sets of partitions 6 are provided in the middle of the vehicle interior, and the partitions 6 are connected to the side walls 2 by rivets.

[0085] The chassis 1 disclosed in this embodiment is mainly made of high-strength steel material welded together to strengthen the foundation of the vehicle body and improve strength reserve. The parts of the chassis 1 that are in direct contact with coal are made of lightweight materials such as aluminum alloy or stainless steel. The lightweight material structure such as aluminum alloy or stainless steel and the high-strength steel material structure can be connected by rivets.

[0086] Furthermore, this application also discloses a hopper cart, including a car body, wherein the car body is any of the car bodies described above. Since the car body of the aforementioned hopper cart has the above-described technical effects, a hopper cart having the aforementioned car body should also have the same technical effects, and no specific limitations are made here.

[0087] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The body of a funnel cart, characterized in that, include: Base frame (1), side walls (2) and end walls (5); The side wall (2) and the end wall (5) are both installed on the base frame (1). The side wall (2) and the end wall (5) are arranged alternately to enclose a storage space for accommodating materials. Both the side wall (2) and the end wall (5) include a first structural layer (10) and a second structural layer (20) stacked together. The first structural layer (10) and the second structural layer (20) are both fiber composite material layers. The side of the first structural layer (10) facing away from the second structural layer (20) is close to the accommodating space, and the side of the second structural layer (20) facing away from the first structural layer (10) is far away from the accommodating space.

2. The body of the funnel cart according to claim 1, characterized in that, The sidewall (2) includes: The side wall body (201) has an interlayer (30) between the first structural layer (10) and the second structural layer (20) of the side wall body (201); Edge region (203), the edge region (203) is located at the lower part and both sides of the side wall body (201), and the first structural layer (10) and the second structural layer (20) located in the edge region (203) are laminated together; A transition zone (202) is located between the side wall body (201) and the edge zone (203), and the transition zone (202) connects the side wall body (201) and the edge zone (203). An interlayer (30) is filled between the first structural layer (10) and the second structural layer (20) in the transition zone (202). The thickness of the interlayer (30) in the transition zone (202) gradually decreases from the side wall body (201) towards the edge zone (203).

3. The body of the funnel cart according to claim 2, characterized in that, The side wall (2) is flat on the side closest to the accommodating space. The thickness of the side wall body (201) is greater than the thickness of the edge area (203). The thickness of the end of the transition area (202) used to connect with the side wall body (201) is the same as the thickness of the side wall body (201). The thickness of the end of the transition region (202) that is connected to the edge region (203) is the same as the thickness of the edge region (203).

4. The body of the funnel cart according to claim 1, characterized in that, The end wall (5) includes: An end wall panel (501) is provided, comprising an end wall body (5011) and an upper connecting plate (5012). The end wall body (5011) is mounted on the base frame (1) and is arranged at an inclination relative to the plane of the base frame (1). The upper connecting plate (5012) is connected to the end of the end wall body (5011) away from the base frame (1). The end wall body (5011) comprises a first region (01) and a second region (02). A sandwich layer (30) is filled between the first structural layer (10) and the second structural layer (20) in the first region (01). The first structural layer (10) and the second structural layer (20) in the second region (02) are connected. Support component (502), one end of which is mounted on the base frame (1), the support component (502) is inclined in the opposite direction to the end wall body (5011), and the end of the support component (502) away from the base frame (1) is connected to the end wall body (5011); A connecting seat (503) is disposed at one end of the upper connecting plate (5012) away from the base frame (1).

5. The body of the funnel cart according to claim 4, characterized in that, The first region (01) includes at least an upper mezzanine region (50111) and a lower mezzanine region (50112), the upper mezzanine region (50111) and the lower mezzanine region (50112) are arranged along the height direction of the end wall body (5011), the upper mezzanine region (50111) is connected to the upper connecting plate (5012), and the lower mezzanine region (50112) is connected to the base frame (1); The second region (02) includes at least one of the following: An intermediate connecting region (50113) is located between the upper interlayer region (50111) and the lower interlayer region (50112), and the support assembly (502) is connected to the intermediate connecting region (50113). The lower connecting region (50114) is located on the side of the lower interlayer region (50112) away from the upper interlayer region (50111); Side connection regions (50115) located at the two sides of the first region (01), the first region (01) being located between the two side connection regions (50115); The upper connecting plate (5012).

6. The body of the funnel cart according to claim 4, characterized in that, The side of the end wall panel (501) closest to the accommodating space is flat; The first structural layer (10) of the first region (01) protrudes from the first structural layer (10) of the second region (02) in a direction away from the accommodating space.

7. The body of the funnel cart according to any one of claims 1 to 6, characterized in that, The height of the side wall (2) in the direction perpendicular to the plane of the base frame (1) is greater than the height of the end wall (5) in the direction perpendicular to the plane of the base frame (1).

8. The body of the funnel cart according to any one of claims 1 to 6, characterized in that, The base frame (1) is a metal frame structure, and the base frame (1) is detachably and fixedly connected to the side wall (2); The base frame (1) is detachably and fixedly connected to the end wall (5).

9. The body of the funnel cart according to any one of claims 1 to 5, characterized in that, It also includes a partition (6), which is disposed in the accommodating space. The partition (6) is detachably connected to the side wall (2) and welded to the base frame (1).

10. A funnel cart, characterized in that, Includes a vehicle body, wherein the vehicle body is the vehicle body as described in any one of claims 1 to 9.

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