Open wagon transport chassis and open wagon

Abstract

This utility model provides an open wagon transport chassis and an open wagon. The open wagon transport chassis includes a chassis body, end reinforcement mechanisms, and a central reinforcement mechanism. The chassis body includes two side beams, two end beams, a central beam, and multiple crossbeams. By setting end reinforcement mechanisms at the four corners of the chassis body and symmetrically arranging central reinforcement mechanisms in the longitudinal middle of the chassis, a container load-bearing structure is constructed. The end reinforcement mechanisms effectively resist the impact force generated by the container corner fittings during vehicle start-up, stopping, and shunting operations. The central reinforcement mechanisms can significantly improve the chassis's bending and deformation resistance when bearing concentrated container loads, and can evenly transfer the weight of the container to the main load-bearing components such as the side beams, end beams, and central beams of the chassis through the end reinforcement mechanisms and central reinforcement mechanisms, greatly reducing local stress in the chassis and avoiding fatigue cracks caused by stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of railway freight car technology, specifically to an open wagon transport chassis and an open wagon. Background Technology

[0002] In recent years, with the rapid development of container rail transport, general-purpose open wagons have been widely used to handle the increasing container transport tasks. However, existing general-purpose open wagons are mainly designed for bulk and general cargo such as coal, ore, building materials, machinery, and timber, without specifically considering the actual working conditions of container transport. In practical application, key structural parts that come into contact with container corner fittings, such as the wagon floor and crossbeams, have gradually revealed insufficient strength, leading to structural damage such as floor deformation and breakage, and cracks in the welds of the crossbeams. These defects not only seriously affect transport safety but also increase the maintenance and repair costs of the wagons.

[0003] When an open truck is loaded with two containers, the maximum stress values ​​in the corresponding areas of the floor, small crossbeams, and longitudinal beams under the corner fittings of the containers have significantly exceeded the material yield limit, causing plastic deformation of the structure. Under load conditions, the structural strength is insufficient, and the floor sinking will also cause the container side beams to bear additional loads, posing a safety hazard to both the truck body and the containers.

[0004] Therefore, there is an urgent need for an open wagon transport chassis and an open wagon to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the problems existing in the prior art, one of the objectives of this utility model is: In a first aspect, this utility model provides an open wagon transport chassis, comprising: The base frame body includes two side beams, two end beams, a middle beam, and multiple cross beams. The two side beams extend along the length of the base frame body, and the two end beams are fixed to the two ends of the two side beams. The two side beams and the two end beams enclose and form the base frame. The middle beam extends along the length of the base frame body between the two side beams, and the two ends of the middle beam are fixedly connected to the two end beams. The multiple cross beams extend along the width of the base frame body, and the two ends of the cross beams are fixedly connected to the side beams on both sides respectively. An end reinforcement mechanism is fixed at the four apex corners of the base frame body; A central reinforcement mechanism is fixed at the middle of the base frame body along its length and is symmetrically arranged on both sides of the central beam along the centerline of the base frame body along its length. In one embodiment, the base frame body further includes a plurality of small crossbeams, which extend along the width direction of the base frame body. One end of each small crossbeam is fixedly connected to the side beam, and the other end of each small crossbeam is fixedly connected to the middle beam.

[0006] In one embodiment, the end reinforcement mechanism includes a first crossbeam and a first longitudinal beam. The first crossbeam extends along the width direction of the base frame body, is fixed to a small crossbeam near the end beam, and one end of the first crossbeam is fixedly connected to the side beam, while the other end of the first crossbeam is fixedly connected to the middle beam. The first longitudinal beam extends along the length direction of the base frame body, with one end of the first longitudinal beam fixedly connected to the first crossbeam and the other end of the first longitudinal beam fixedly connected to another small crossbeam adjacent to the first crossbeam.

[0007] In one embodiment, both the first longitudinal beam and the first transverse beam include a U-shaped tube and a base plate. The base plate is fixed to the open side of the U-shaped tube. The end of the U-shaped tube connected to the base frame body is provided with a first connecting part and a guide part. The first connecting part is fixedly connected to the base frame body, and the guide part is inclined relative to the connecting part.

[0008] In one embodiment, the central reinforcing mechanism includes a second longitudinal beam and a second transverse beam. The second longitudinal beam extends along the length of the base frame body, and its two ends are fixedly connected to two adjacent transverse beams, respectively. The second transverse beam extends along the width of the base frame body, and one end of the second transverse beam is fixedly connected to the side of the second longitudinal beam near the side beam, while the other end of the second transverse beam is fixedly connected to the side beam.

[0009] In one embodiment, the end reinforcement mechanism includes a third crossbeam and a third longitudinal beam. The third crossbeam extends along the width direction of the base frame body and is fixed to a small crossbeam near the end beam. One end of the third crossbeam is fixedly connected to the side beam, and the other end of the third crossbeam is fixedly connected to the middle beam. The third longitudinal beam extends along the length direction of the base frame body. One end of the third longitudinal beam is fixedly connected to the third crossbeam, and the other end of the third longitudinal beam is fixedly connected to another small crossbeam on the side of the third crossbeam away from the end beam.

[0010] In one embodiment, the central reinforcing mechanism includes a fourth longitudinal beam and a fourth transverse beam. The fourth longitudinal beam extends along the length of the base frame body, and its two ends are respectively fixedly connected to two adjacent transverse beams in the middle of the base frame body. The fourth transverse beam extends along the width of the base frame body, and one end of the fourth transverse beam is fixedly connected to the side of the fourth longitudinal beam near the side beam, while the other end of the fourth transverse beam is fixedly connected to the side beam.

[0011] In one embodiment, the fourth longitudinal beam has a Z-shaped cross section, and second connecting parts are provided at both ends of the fourth longitudinal beam. The second connecting parts at both ends of the fourth longitudinal beam are respectively fixedly connected to two adjacent cross beams in the middle of the base frame body, and support parts are provided on both sides of the fourth longitudinal beam.

[0012] In one embodiment, the system further includes a bolster beam, which comprises an upper cover plate, a lower cover plate, a web plate, and a center plate seat. The web plate is disposed between the upper cover plate and the lower cover plate, and both ends of the web plate are fixedly connected to the side beams on both sides. The center plate seat is fixedly installed in the middle of the upper cover plate, and the bottom of the center plate seat is fixedly connected to the center beam. Wing plates extending along the length direction of the main body of the base frame are provided on both sides of the center plate seat, and the wing plates are fixedly connected to the web plate, the upper cover plate, and the lower cover plate, respectively.

[0013] Secondly, this utility model also provides an open wagon, including the open wagon transport chassis as described above.

[0014] Compared with the prior art, the advantages of this utility model are as follows: the embodiments of this application provide an open wagon transport chassis and an open wagon. The open wagon transport chassis includes a chassis body, end reinforcement mechanisms, and a central reinforcement mechanism. The chassis body includes two side beams, two end beams, a central beam, and multiple crossbeams. By setting end reinforcement mechanisms at the four corners of the chassis body and symmetrically arranging central reinforcement mechanisms in the longitudinal middle of the chassis, a container load-bearing structure is constructed. The end reinforcement mechanisms effectively resist the impact force generated by the container corner pieces during vehicle start-up, stopping, and shunting operations. The central reinforcement mechanisms can significantly improve the chassis's bending and deformation resistance when bearing concentrated container loads. Furthermore, the weight of the container can be evenly transferred to the main load-bearing components such as the side beams, end beams, and central beams of the chassis through the end reinforcement mechanisms and the central reinforcement mechanisms, greatly reducing local stress in the chassis and avoiding fatigue cracks caused by stress concentration. Attached Figure Description Figure 1 This is a structural schematic diagram of one of the open wagon transport chassis provided in some embodiments of this application.

[0015] Figure 2 This is a schematic diagram of another open wagon transport chassis provided for some embodiments of this application.

[0016] Figure 3 This is a schematic diagram of the structure of the first crossbeam of a coal scraper in a coal truck bucket, provided for some embodiments of this application.

[0017] Figure 4 This is a side view of the first crossbeam of a coal scraper in a coal truck bucket, provided for some embodiments of this application.

[0018] Figure 5 This is a schematic diagram of the structure of the fourth crossbeam of a coal scraper in a coal truck bucket, provided for some embodiments of this application.

[0019] Figure 6 A side view of the fourth crossbeam of a coal scraper in a coal truck bucket, provided for some embodiments of this application.

[0020] Figure label: 1. Side beam; 2. End beam; 3. Middle beam; 4. Crossbeam; 5. Small crossbeam; 6. First crossbeam; 61. U-shaped tube; 611. First connecting part; 612. Guide part; 62. Base plate; 7. First longitudinal beam; 8. Second longitudinal beam; 9. Second crossbeam; 10. Third crossbeam; 11. Third longitudinal beam; 12. Fourth longitudinal beam; 13. Fourth crossbeam; 131. Second connecting part; 132. Support part; 14. Pillar beam; 141. Web plate; 142. Center plate seat; 143. Wing plate. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a joint; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Firstly, see Figures 1-6This application provides an embodiment of an open wagon transport chassis, which includes a chassis body, end reinforcement mechanisms, and a central reinforcement mechanism. The chassis body includes two side beams 1, two end beams 2, a central beam 3, and multiple crossbeams 4. The two side beams 1 extend along the length of the chassis body, and the two end beams 2 are fixed to the two ends of the two side beams 1. The two side beams 1 and the two end beams 2 enclose and form a chassis frame. The central beam 3 extends along the length of the chassis body between the two side beams 1, and the two ends of the central beam 3 are fixedly connected to the two end beams 2. The multiple crossbeams 4 extend along the width of the chassis body, and the two ends of the crossbeams 4 are fixedly connected to the side beams 1 on both sides respectively. The end reinforcement mechanisms are fixed at the four apex corners of the chassis body. The central reinforcement mechanisms are fixed at the middle of the chassis body along its length and are symmetrically arranged on both sides of the central beam 3 along the centerline of the chassis body along its length. The open wagon transport chassis provided in this application embodiment constructs a container load-bearing structure by setting end reinforcement mechanisms at the four corners of the chassis body and symmetrically arranging central reinforcement mechanisms in the longitudinal middle of the chassis. The end reinforcement mechanisms effectively resist the impact force generated by the container corner pieces during vehicle start-up, stopping, and shunting operations. The central reinforcement mechanisms can significantly improve the chassis's bending and deformation resistance when bearing concentrated container loads, and can evenly transfer the weight of the container to the main load-bearing components such as the side beams 1, end beams 2, and middle beams 3 of the chassis through the end reinforcement mechanisms and central reinforcement mechanisms, greatly reducing the local stress of the chassis and avoiding fatigue cracks caused by stress concentration. like Figure 1 and Figure 2 As shown, in some embodiments, the base frame body also includes a plurality of small crossbeams 5, which extend along the width direction of the base frame body. One end of the small crossbeam 5 is fixedly connected to the side beam 1, and the other end of the small crossbeam 5 is fixedly connected to the middle beam 3.

[0029] By setting multiple small crossbeams 5 between the middle beam 3 and the side beam 1, the integrity and stability of the underframe structure can be significantly enhanced, and the underframe's ability to resist torsional deformation can be effectively improved. The load on the underframe is more evenly distributed to the main load-bearing components such as the middle beam 3 and the side beam 1. This not only optimizes the overall stress distribution of the underframe and avoids excessive local stress, but also strengthens the end and middle parts of the entire underframe body, thus providing a stable support foundation for the container. While ensuring structural strength, it also achieves a comprehensive improvement in the rigidity and load-bearing capacity of the underframe.

[0030] like Figure 1As shown, in some embodiments, the end reinforcement mechanism includes a first crossbeam 6 and a first longitudinal beam 7. The first crossbeam 6 extends along the width direction of the base frame body and is fixed to a small crossbeam 5 near the end beam 2. One end of the first crossbeam 6 is fixedly connected to the side beam 1, and the other end of the first crossbeam 6 is fixedly connected to the middle beam 3. The first longitudinal beam 7 extends along the length direction of the base frame body. One end of the first longitudinal beam 7 is fixedly connected to the first crossbeam 6, and the other end of the first longitudinal beam 7 is fixedly connected to another small crossbeam 5 adjacent to the first crossbeam 6.

[0031] By setting an end reinforcement mechanism consisting of a first crossbeam 6 and a first longitudinal beam 7 at the end, a stable local load-bearing frame is formed around the main body of the underframe. The first crossbeam 6 is closely connected to the side beam 1, the middle beam 3, and the end small crossbeam 5, which can effectively distribute the concentrated load transmitted by the container to the corner of the open wagon underframe to the main load-bearing structures of the underframe. In addition, by further connecting the first crossbeam 6 with the adjacent small crossbeam 5 through the first longitudinal beam 7, the ability of this area to resist longitudinal impact and deformation during vehicle start-up, stopping, and operation can be significantly enhanced, thereby greatly improving the rigidity and strength of the end structure, effectively suppressing stress concentration, and ensuring the reliability and stability of the container load at the end, thus extending the service life of the underframe.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, both the first longitudinal beam 7 and the first transverse beam 6 include a U-shaped tube 61 and a base plate 62. The base plate 62 is fixed to the open side of the U-shaped tube 61. The end of the U-shaped tube 61 connected to the base frame body is provided with a first connecting part 611 and a guide part 612. The first connecting part 611 is fixedly connected to the base frame body, and the guide part 612 is inclined relative to the connecting part.

[0033] The U-shaped tube 61 and the base plate 62 together form a load-bearing structure, making the connection between the first longitudinal beam 7 and the first cross beam 6 and the main body of the underframe tighter. This allows for better bearing and transmission of the huge concentrated load brought by the container. The first connecting part 611 at the end of the U-shaped tube 61 ensures a firm fixation to the main body of the underframe, while the inclined guide part 612 makes it easier to align the installation position when installing and maintaining the first longitudinal beam 7 and the first cross beam 6, greatly improving the efficiency of maintenance and installation of the open wagon underframe. By using the first longitudinal beam 7 and the first cross beam 6 composed of the U-shaped tube 61 and the base plate 62, the bending and torsional stiffness of the end reinforcement mechanism can be significantly enhanced, and stress concentration can be effectively suppressed under extreme working conditions to avoid local instability, thus comprehensively improving the load-bearing reliability and service life of the end structure.

[0034] like Figure 1As shown, in some embodiments, the central reinforcing mechanism includes a second longitudinal beam 8 and a second transverse beam 9. The second longitudinal beam 8 extends along the length of the base frame body, and both ends of the second longitudinal beam 8 are fixedly connected to two adjacent transverse beams 4 respectively. The second transverse beam 9 extends along the width of the base frame body, and one end of the second transverse beam 9 is fixedly connected to the side of the second longitudinal beam 8 near the side beam 1, and the other end of the second transverse beam 9 is fixedly connected to the side beam 1.

[0035] By connecting the second longitudinal beam 8 between adjacent crossbeams 4, the underframe's ability to resist longitudinal bending deformation can be significantly improved. The second crossbeam 9 firmly connects the second longitudinal beam 8 to the side beam 1, forming a stable lateral force transmission path. This ensures that the concentrated load generated by the container corner fittings can be efficiently distributed to the main load-bearing components such as the side beam 1. By setting a central reinforcement mechanism consisting of the second longitudinal beam 8 and the second crossbeam 9 in the middle of the open wagon underframe, the load-bearing rigidity and overall stability of the middle part of the underframe can be effectively enhanced, the stress distribution in the middle part of the underframe can be significantly optimized, fatigue damage caused by excessive local stress can be effectively avoided, and the reliability and safety of the vehicle under heavy load conditions during long-term operation can be greatly improved.

[0036] In this embodiment of the application, a drainage hole is provided on the second crossbeam 9.

[0037] like Figure 2 As shown, in some embodiments, the end reinforcement mechanism includes a third crossbeam 10 and a third longitudinal beam 11. The third crossbeam 10 extends along the width direction of the base frame body and is fixed to a small crossbeam 5 near the end beam 2. One end of the third crossbeam 10 is fixedly connected to the side beam 1, and the other end of the third crossbeam 10 is fixedly connected to the middle beam 3. The third longitudinal beam 11 extends along the length direction of the base frame body. One end of the third longitudinal beam 11 is fixedly connected to the third crossbeam 10, and the other end of the third longitudinal beam 11 is fixedly connected to another small crossbeam 5 on the side of the third crossbeam 10 away from the end beam 2.

[0038] By tightly connecting the third crossbeam 10 with the side beam 1, the middle beam 3, and the end small crossbeam 5, the concentrated load transmitted by the container to the corner of the open wagon chassis can be effectively distributed to different main load-bearing structures of the chassis, avoiding stress concentration that could damage the open wagon chassis. By further connecting the third crossbeam 10 with the adjacent small crossbeam 5 by setting the third longitudinal beam 11, the corner of the open wagon chassis can be significantly enhanced to resist longitudinal impact and deformation during vehicle start-up, stopping, and operation. By setting the end reinforcement mechanism composed of the third crossbeam 10 and the third longitudinal beam 11 at the end, a high-strength local load-bearing frame is formed, which can greatly improve the stiffness and stability of the end structure, optimize stress distribution, effectively avoid local stress concentration, ensure the safety and reliability of the load-bearing capacity of the open wagon chassis end, and greatly extend the service life of the chassis structure.

[0039] It should be noted that the third crossbeam 10 and the third longitudinal beam 11 are alternatives to the first crossbeam 6 and the first longitudinal beam 7. The first crossbeam 6 and the first longitudinal beam 7 are mainly used in the C64K open wagon chassis, while the third crossbeam 10 and the third longitudinal beam 11 are mainly used in the C70E open wagon chassis. Of course, the end reinforcement mechanism composed of the third crossbeam 10 and the third longitudinal beam 11 or the first crossbeam 6 and the first longitudinal beam 7 can be used in the C64K and C70E open wagon chassis as needed. Furthermore, the end reinforcement mechanism in the embodiments of this application can also be applied to different models of open wagon chassis, and there are no restrictions here.

[0040] like Figure 2 As shown, in some embodiments, the central reinforcement mechanism includes a fourth longitudinal beam 12 and a fourth transverse beam 13. The fourth longitudinal beam 12 extends along the length of the base frame body, and both ends of the fourth longitudinal beam 12 are fixedly connected to two adjacent transverse beams 4 in the middle of the base frame body, respectively. The fourth transverse beam 13 extends along the width of the base frame body, and one end of the fourth transverse beam 13 is fixedly connected to the side of the fourth longitudinal beam 12 near the side beam 1, and the other end of the fourth transverse beam 13 is fixedly connected to the side beam 1.

[0041] By connecting the fourth longitudinal beam 12 to the adjacent crossbeam 4, the underframe's ability to resist longitudinal bending deformation is effectively improved. Furthermore, by connecting the fourth longitudinal beam 12 to the side beam 1 through the fourth crossbeam 13, a lateral force transmission path is formed, ensuring that the concentrated load generated by the container on the corners of the open wagon underframe is evenly distributed to the main load-bearing components such as the side beam 1. By installing a central reinforcement mechanism consisting of the fourth longitudinal beam 12 and the fourth crossbeam 13 in the middle of the open wagon underframe, the load-bearing stiffness and overall stability of the central underframe are significantly enhanced, the stress distribution in the central underframe is optimized, damage to the open wagon underframe caused by localized stress concentration is effectively avoided, and the structural integrity and long-term operational reliability of the vehicle under heavy load conditions are greatly improved.

[0042] It should be noted that the fourth crossbeam 13 and the fourth longitudinal beam 12 are alternatives to the second crossbeam 9 and the second longitudinal beam 8. The second crossbeam 9 and the second longitudinal beam 8 are mainly used in the C64K open wagon chassis, while the fourth crossbeam 13 and the fourth longitudinal beam 12 are mainly used in the C70E open wagon chassis. Of course, depending on the specific needs, the C64K and C70E open wagon chassis can arbitrarily adopt the central reinforcement mechanism composed of the fourth crossbeam 13 and the fourth longitudinal beam 12 or the second crossbeam 9 and the second longitudinal beam 8. Furthermore, the central reinforcement mechanism in the embodiments of this application can also be applied to different models of open wagon chassis, and there are no restrictions here.

[0043] In this embodiment of the application, a drainage hole is provided on the fourth crossbeam 13.

[0044] like Figure 2 , Figure 5 and Figure 6As shown, in some embodiments, the cross section of the fourth longitudinal beam 12 is shaped like a "Z", and the two ends of the fourth longitudinal beam 12 are provided with second connecting parts 131. The second connecting parts 131 at both ends of the fourth longitudinal beam 12 are fixedly connected to two adjacent crossbeams 4 in the middle of the base frame body, and the two sides of the fourth longitudinal beam 12 are provided with supporting parts 132.

[0045] By employing a Z-shaped cross-section for the fourth longitudinal beam 12, its bending and torsional stiffness can be enhanced, enabling it to effectively resist various deformations caused by excessive loads. Furthermore, the second connecting parts 131 at both ends of the fourth longitudinal beam 12 ensure a secure connection with the adjacent crossbeams 4, forming a stable longitudinal force transmission path. The support parts 132 on both sides further enhance the lateral stability of the fourth longitudinal beam 12, preventing local instability and optimizing stress distribution. The use of the Z-shaped cross-section fourth longitudinal beam 12 in the open wagon chassis significantly improves the load-bearing capacity and structural stability of the central reinforcement mechanism, allowing concentrated loads to be more evenly distributed to the main load-bearing structure, effectively avoiding stress concentration, and greatly improving the load-bearing reliability and service life of the chassis center under heavy load conditions.

[0046] like Figure 1 and Figure 2 As shown, in some embodiments, a bolster beam 14 is also included. The bolster beam 14 includes an upper cover plate, a lower cover plate, a web plate 141, and a center plate seat 142. The web plate 141 is disposed between the upper cover plate and the lower cover plate. Both ends of the web plate 141 are fixedly connected to the side beams 1 on both sides. The center plate seat 142 is fixedly installed in the middle of the upper cover plate. The bottom of the center plate seat 142 is fixedly connected to the middle beam 3. Wing plates 143 extending along the length direction of the main body of the underframe are provided on both sides of the center plate seat 142. The wing plates 143 are fixedly connected to the web plate 141, the upper cover plate, and the lower cover plate, respectively.

[0047] By adopting the bolster beam 14 structure, which consists of an upper cover plate, a lower cover plate, and a web plate 141, the bolster beam 14 structure can have extremely high bending and torsional stiffness, effectively bearing the concentrated load from the center plate seat 142. The center plate seat 142 is fixed to the middle of the upper cover plate and connected to the center beam 3, ensuring the efficient transmission of longitudinal traction force and vertical load. The wing plates 143 set on both sides of the center plate seat 142 are firmly connected to the web plate 141 and the upper and lower cover plates, forming a strong stress diffusion structure, which evenly distributes the concentrated load to the entire cross section of the bolster beam 14, thereby greatly reducing the risk of stress concentration. By setting the optimized bolster beam 14 structure, the open wagon underframe can significantly improve the load transmission efficiency and structural reliability of the open wagon underframe, significantly enhance the overall stability of the bolster beam 14 area, and provide reliable structural protection for the heavy-load operation of the vehicle.

[0048] Secondly, one embodiment of this application provides an open wagon, including the open wagon transport chassis as described above. The open wagon provided in this embodiment, by adopting the aforementioned open wagon chassis structure, comprehensively improves the load-bearing capacity and operational reliability of the entire vehicle. This open wagon fully utilizes the high-strength characteristics of the central and end reinforcement mechanisms of the chassis, enabling it to safely and stably bear standard containers and their dynamic loads. The design of the bolster beam 14 and the center plate seat 142 significantly enhances impact resistance and fatigue resistance. While ensuring rigidity and strength, the overall structure achieves long-term stable operation under heavy-load transport conditions, thus providing efficient and reliable equipment support for container transport.

[0049] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An open wagon transport chassis, characterized in that, include: The base frame body includes two side beams, two end beams, a middle beam, and multiple cross beams. The two side beams extend along the length of the base frame body, and the two end beams are fixed to the two ends of the two side beams. The two side beams and the two end beams enclose and form the base frame. The middle beam extends along the length of the base frame body between the two side beams, and the two ends of the middle beam are fixedly connected to the two end beams. The multiple cross beams extend along the width of the base frame body, and the two ends of the cross beams are fixedly connected to the side beams on both sides respectively. An end reinforcement mechanism is fixed at the four apex corners of the base frame body; A central reinforcement mechanism is fixed at the middle of the base frame body along its length and is symmetrically arranged on both sides of the central beam along the centerline of the base frame body along its length.

2. The open wagon transport chassis according to claim 1, characterized in that, The base frame body also includes multiple small crossbeams, which extend along the width direction of the base frame body. One end of each small crossbeam is fixedly connected to the side beam, and the other end of each small crossbeam is fixedly connected to the middle beam.

3. The open wagon transport chassis according to claim 2, characterized in that, The end reinforcement mechanism includes a first crossbeam and a first longitudinal beam. The first crossbeam extends along the width direction of the base frame body and is fixed to a small crossbeam near the end beam. One end of the first crossbeam is fixedly connected to the side beam, and the other end of the first crossbeam is fixedly connected to the middle beam. The first longitudinal beam extends along the length direction of the base frame body and is fixedly connected to the first crossbeam. The other end of the first longitudinal beam is fixedly connected to another small crossbeam adjacent to the first crossbeam.

4. The open wagon transport chassis according to claim 3, characterized in that, Both the first longitudinal beam and the first transverse beam include a U-shaped tube and a base plate. The base plate is fixed to the open side of the U-shaped tube. The end of the U-shaped tube connected to the base frame body is provided with a first connecting part and a guide part. The first connecting part is fixedly connected to the base frame body, and the guide part is inclined relative to the connecting part.

5. The open wagon transport chassis according to claim 1, characterized in that, The central reinforcement mechanism includes a second longitudinal beam and a second transverse beam. The second longitudinal beam extends along the length of the base frame body, and its two ends are fixedly connected to two adjacent transverse beams. The second transverse beam extends along the width of the base frame body, and one end of the second transverse beam is fixedly connected to the side of the second longitudinal beam near the side beam, while the other end of the second transverse beam is fixedly connected to the side beam.

6. The open wagon transport chassis according to claim 2, characterized in that, The end reinforcement mechanism includes a third crossbeam and a third longitudinal beam. The third crossbeam extends along the width direction of the base frame body and is fixed to the small crossbeam near the end beam. One end of the third crossbeam is fixedly connected to the side beam, and the other end of the third crossbeam is fixedly connected to the middle beam. The third longitudinal beam extends along the length direction of the base frame body. One end of the third longitudinal beam is fixedly connected to the third crossbeam, and the other end of the third longitudinal beam is fixedly connected to another small crossbeam on the side of the third crossbeam away from the end beam.

7. The open wagon transport chassis according to claim 1, characterized in that, The central reinforcement mechanism includes a fourth longitudinal beam and a fourth transverse beam. The fourth longitudinal beam extends along the length of the base frame body, and its two ends are fixedly connected to two adjacent transverse beams in the middle of the base frame body. The fourth transverse beam extends along the width of the base frame body, and one end of the fourth transverse beam is fixedly connected to the side of the fourth longitudinal beam near the side beam, while the other end of the fourth transverse beam is fixedly connected to the side beam.

8. The open wagon transport chassis according to claim 7, characterized in that, The fourth longitudinal beam has a Z-shaped cross section. The two ends of the fourth longitudinal beam are provided with second connecting parts. The second connecting parts at both ends of the fourth longitudinal beam are respectively fixedly connected to the two adjacent cross beams in the middle of the base frame body. Support parts are provided on both sides of the fourth longitudinal beam.

9. The open wagon transport chassis according to claim 1, characterized in that, It also includes a bolster beam, which includes an upper cover plate, a lower cover plate, a web plate, and a center plate seat. The web plate is disposed between the upper cover plate and the lower cover plate, and both ends of the web plate are fixedly connected to the side beams on both sides. The center plate seat is fixedly installed in the middle of the upper cover plate, and the bottom of the center plate seat is fixedly connected to the center beam. Wing plates extending along the length direction of the main body of the base frame are provided on both sides of the center plate seat, and the wing plates are fixedly connected to the web plate, the upper cover plate, and the lower cover plate, respectively.

10. An open wagon, characterized in that, Includes the open wagon transport chassis as described in any one of claims 1-9.

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