Frames, bogies, and track vehicles

Abstract

The frame includes a top plate (100), two webs (200), two side plates (300), and a bottom plate (400). The top plate (100) is recessed downward from both ends toward the central axis, the two webs (200) are connected to both sides of the top plate (100) in the width direction, the upper surfaces of the webs (200) conform to the top plate (100), and the middle of the lower surface of the webs (200) extends away from the top plate (100) to form an extended segment (210), the two side plates (300) are connected to both sides of the top plate (100) in the longitudinal direction, and the two side plates (300) are connected to the lower surfaces of the two webs (200), the side plates (300) have bent portions (310) at the positions of the extended segment (210), and the bent portions (310) are connected to the extended segment (210). The base plate (400) is connected to two webs (200) and two side plates (300). By forming a "Y"-shaped frame configuration as described above, the frame structure is made more compact, the occupied space is reduced, and the use of structural components such as plates and beams is reduced, significantly reducing the weight of the frame. A bogie including the frame and a track vehicle equipped with the bogie are also provided.

Description

[[TECHNICAL FIELD]]

[0001] The present application claims the priority of the Chinese patent application filed on May 09, 2024 with the application number 202410571324.4 and the title "Frame, Bogie and Rail Vehicle", which is incorporated herein by reference in its entirety.

[0002] The present application relates to the technical field of rail vehicles, and in particular to a frame, a bogie and a rail vehicle. [[BACKGROUND ART]]

[0003] With the accelerated progress of urbanization, the expansion of urban scale, the rapid development of urban transportation and the increase of population, space resources continue to decrease, and the operation of ground rail transportation has become more difficult. As a result, a traffic operation solution for suspended aerial rail trains has emerged.

[0004] Compared with conventional rail transit such as subways, light rails and trams, aerial rails have relatively low construction costs and occupy a small area, and support columns can be erected between cities, and the support columns can be removed and reused. This helps to alleviate traffic congestion and can provide tourists with a new tourism experience.

[0005] The weight of an aerial rail is directly related to the operation status of the aerial rail. At present, aerial rails have the problem of excessive weight. The design of conventional aerial rail frame structures has already reached its limit in terms of weight optimization. Therefore, new frame configurations are required to meet the requirements for lightweight design of aerial rails. [[SUMMARY OF THE INVENTION]] [[Problem to be Solved by the Invention]]

[0006] The present application solves the technical problem in the prior art that an aerial rail frame is heavy and has a non-compact space, and provides a frame for realizing lightweight design of the frame and making the space of the frame compact.

[0007] This invention further provides a trolley.

[0008] This application further provides a rail vehicle. [Means for solving the problem]

[0009] This application provides a frame, said frame, The tabletop is concave downwards from both ends toward the central axis, Two webs, each connected to both sides of the top plate in the width direction, wherein the upper surface of each web conforms to the top plate, and the middle portion of the lower surface of each web extends away from the top plate, thereby forming an extended segment. Each of the two side plates is connected to both sides of the top plate in the longitudinal direction, and each of the two side plates is connected to the lower surface of the two webs, and each side plate has a bent portion at the position of the extended segment, and the bent portion is connected to the two side plates that are connected to the extended segment, It includes the two webs and a bottom plate connected to the two side plates.

[0010] According to the frame of the present invention, the upper surface of the top plate is provided with stabilizing wheel mounting seats at positions near both ends, and the stabilizing wheel mounting seat includes two vertical plates installed parallel to each other with a gap in between, a reinforcing plate installed between the two vertical plates, and a horizontal plate located above the vertical plates and connected to the two vertical plates and the reinforcing plate, the horizontal plate having a stabilizing wheel mounting interface, and the reinforcing plate having weight-reducing holes.

[0011] According to the frame of this application, the two side plates are each configured with a gearbox suspension seat, The gearbox suspension seat has a recessed groove-type gearbox suspension opening whose opening faces away from the web. Alternatively, the gearbox suspension seat has a ring-shaped gearbox suspension opening.

[0012] According to the frame of the present invention, a driving safety bracket is connected to one end of the gearbox suspension seat away from the side plate, and a bolster mounting seat is connected to the other end of the driving safety bracket away from the gearbox suspension seat.

[0013] According to the frame of the present invention, a motor mounting seat is provided at one end of each of the two side plates closest to the top plate, and a motor mounting interface is provided on the motor mounting seat.

[0014] According to the frame of the present invention, the two side plates each have an inclined segment formed between the bent portion and the motor mounting seat, and a primary spring mounting seat is attached to each of the two inclined segments.

[0015] According to the frame of the present invention, the two webs are each provided with a side current collector mounting seat at a position above the primary spring mounting seat, Alternatively, a mounting base for a side current collector is provided in the center of the top plate.

[0016] According to the frame of the present invention, the top plate, the two webs, the two side plates, and the bottom plate surround each other to form a frame cavity, and at least two rib plates are mounted at intervals within the frame cavity.

[0017] The present invention further provides a trolley including the aforementioned frame.

[0018] The present invention further provides a track vehicle including a vehicle body on which the aforementioned bogie is installed. [Effects of the Invention]

[0019] In the embodiment of the present invention, the top plate is recessed downward from both ends toward the central axis, and the middle of the underside of the web is extended away from the top plate. After attaching the web to the underside of the top plate, the top plate and the web can form a "Y" shape structure. By further combining this with the attachment of the side plates and bottom plate, a "Y" shape frame can be formed. This "Y" shape frame configuration makes the frame structure more compact and reduces the occupied space. The "Y" shape frame configuration significantly reduces the use of structural components such as plates and beams while meeting the operational requirements of the frame, and significantly reduces the weight of the frame. Furthermore, the "Y" shape frame can reduce the thickness of the plate material and further reduce the weight of the frame while meeting the operational requirements of the frame by welding thinner plate material to form the frame.

[0020] In the bogie according to the embodiment of the present invention, by installing the aforementioned frame on the bogie, the top plate of the frame is recessed downward from both ends toward the central axis, and the middle part of the underside of the web is extended away from the top plate. After attaching the web to the underside of the top plate, the top plate and the web can form a "Y" shape structure. Furthermore, by combining this with the attachment of the side plates and bottom plate, a "Y" shape frame is formed. This "Y" shape frame configuration makes the frame structure more compact and reduces the occupied space. The "Y" shape frame configuration significantly reduces the use of structural components such as plates and beams while meeting the operational requirements of the frame, and significantly reduces the weight of the frame. Moreover, the "Y" shape frame reduces the thickness of the plate material, and the frame can be formed by welding thinner plate material while meeting the operational requirements of the frame, further reducing the weight of the frame.

[0021] A rail vehicle according to an embodiment of the present application, by installing the aforementioned bogie to the car body of the rail vehicle, recesses the top plate of the frame downward from both ends toward the central axis, and extends the middle portion of the lower surface of the web in a direction away from the top plate. Therefore, after the web is installed on the lower surface of the top plate, the top plate and the web can form a "Y"-shaped structure, and further in combination with the installation and assembly of side plates and a bottom plate, a "Y"-shaped frame is formed. By adopting the "Y"-shaped frame configuration, the structure of the frame can be made more compact, and the occupied space can be made smaller. While satisfying the operation requirements of the frame, the "Y"-shaped frame configuration greatly reduces the use of structural components such as plates and beams, and can significantly reduce the weight of the frame. Furthermore, the "Y"-shaped frame can reduce the thickness of the plate material, form the frame by welding thinner plate materials while meeting the operation requirements of the frame, and can further reduce the weight of the frame. [BRIEF DESCRIPTION OF THE DRAWINGS]

[0022] Hereinafter, in order to more clearly describe the technical solution of the present application or the prior art, the drawings required for describing the embodiments or the prior art will be briefly described. Of course, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative labor. [Figure 1] It is a first schematic structural diagram of a frame according to the present application. [Figure 2] It is a second schematic structural diagram of a frame according to the present application. [Figure 3] It is a third schematic structural diagram of a frame according to the present application. [Figure 4] It is a schematic structural diagram of a stabilizing wheel mounting seat according to the present application. [MODE FOR CARRYING OUT THE INVENTION]

[0023] Hereinafter, embodiments of the present application will be described in more detail with reference to the drawings and embodiments. The following embodiments are intended to describe the present application, but not to limit the scope of the present application.

[0024] In the description of the embodiments of this application, directions or positional relationships indicated by terms such as "center," "vertical," "horizontal," "up," "down," "front," "back," "left," "right," "perpendicular," "horizontal," "top," "bottom," "inside," and "outside" are based on the directions or positional relationships shown in the drawings and are merely for the convenience and simplification of the description of the embodiments of this application. They do not indicate or suggest that the shown devices or elements have a specific direction, or are configured or operated in a specific direction, and therefore cannot be understood as limitations on the embodiments of this application. Furthermore, terms such as "first," "second," and "third" are merely for descriptive purposes and cannot be understood as indicating or suggesting relative importance.

[0025] In the description of embodiments of this application, unless otherwise explicitly stated or limited, terms such as “connection” and “bonding” should be understood in a broad sense, including, for example, fixed connections, detachable connections, or integral connections. Mechanical or electrical connections are also possible, and connections may be direct or indirect, via an intermediate medium. Those skilled in the art will be able to understand the specific meaning of these terms in the embodiments of this application, depending on the specific circumstances.

[0026] In embodiments of the present application, unless otherwise explicitly stated or limited, the position of the first feature "above" or "below" the second feature may mean that the first and second features are in direct contact or indirectly in contact via an intermediate medium. Furthermore, the position of the first feature "above," "above," and "upper side" of the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply that the horizontal height of the first feature is greater than that of the second feature. The position of the first feature "below," "below," and "below side" of the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply that the horizontal height of the first feature is lower than that of the second feature.

[0027] In this specification, any description referring to terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples” means that the specific features, structures, materials, or properties described with reference to such embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be combined in appropriate ways in any one or more embodiments or examples. Moreover, a person skilled in the art may combine and combine different embodiments or examples described herein with features of different embodiments or examples, provided that they do not conflict with each other.

[0028] Embodiments of the present invention will be described with reference to Figures 1-4. This embodiment provides a frame comprising a top plate 100, two webs 200, two side plates 300, and a bottom plate 400. The top plate 100 is recessed downward from both ends toward the central axis. The two webs 200 are each connected to both sides of the top plate 100 in the width direction, with the upper surfaces of the webs 200 conforming to the top plate 100, and the middle portions of the lower surfaces of the webs 200 extending away from the top plate 100 to form an extended segment 210. The two side plates 300 are each connected to both sides of the top plate 100 in the longitudinal direction, and the two side plates 300 are each connected to the lower surfaces of the two webs 200, and the side plates 300 are configured with bent portions 310 at the positions of the extended segment 210, and the bent portions 310 are connected to the extended segment 210. The base plate 400 is connected to two webs 200 and two side plates 300.

[0029] In this embodiment, the top plate 100 is recessed downward from both ends toward the central axis, and the middle part of the lower surface of the web 200 is extended away from the top plate 100. After attaching the web 200 to the lower surface of the top plate 100, the top plate 100 and the web 200 can form a "Y" shape structure. Furthermore, by combining this with the attachment of the side plates 300 and the bottom plate 400, a "Y" shape frame is formed. This "Y" shape frame configuration makes the frame structure more compact and reduces the occupied space. The "Y" shape frame configuration significantly reduces the use of structural components such as plates and beams while meeting the operational requirements of the frame, and further reduces the weight of the frame. Moreover, the "Y" shape frame reduces the thickness of the plate material, and the frame can be formed by welding thinner plate material while meeting the operational requirements of the frame, further reducing the weight of the frame.

[0030] As shown in Figure 1, the height of both ends of the tabletop 100 is greater than the height along the central axis, both ends of the tabletop 100 curve upward, the central part of the tabletop 100 is concave downward, and the central part of the tabletop 100 has straight segments and inclined segments, thereby forming the structure of the irregularly shaped tabletop 100.

[0031] As shown in Figure 1, the upper surface of the web 200 is connected to the top plate 100, and to ensure the stability of the overall structure, the shape of the upper surface of the web 200 is the same as the shape of the top plate 100. The lower surface of the web 200 is connected to the side plate 300, and to ensure the stability of the overall structure, the shape of the lower surface of the web 200 is the same as the shape of the side plate 300. Here, the entire web 200 is also "Y" shaped, and the extended segment 210 in the central part of the lower surface of the web 200 extends downward and then combines with the curved shape of the upper surface of the web 200 to form the "Y" shaped web 200. When these are assembled to form a frame, a "Y" shaped frame structure is formed, thereby making the frame structure compact and lightweight. Here, the extended segment 210 of the web 200 can be integrally molded with the upper structure of the web 200 or connected by welding.

[0032] The side panels 300 are located on both sides of the top panel 100 in the longitudinal direction and are intended to seal the opening area between the top panel 100 and the web 200.

[0033] Here, the top plate 100, web 200, side plates 300, and bottom plate 400 are connected by welding. The top plate 100, web 200, side plates 300, and bottom plate 400 can all be made of domestically produced S355 steel plate, and the plate thickness of the top plate 100, web 200, side plates 300, and bottom plate 400 can be set to 8 mm. Compared to the 12 mm plate thickness of conventional aerial track frames, this design achieves a compact structure and space reduction while significantly reducing the plate thickness, and greatly reducing the weight of the frame while ensuring the stability of the frame structure and operational safety.

[0034] According to the frame of the present invention, the top surface of the top plate 100 is provided with stabilizing wheel mounting seats 110 at positions near both ends. The stabilizing wheel mounting seat 110 includes two vertical plates 1110 installed parallel to each other with a gap between them, a reinforcing plate 1120 installed between the two vertical plates 1110, and a horizontal plate 1130 located above the vertical plates 1110 and connected to the two vertical plates 1110 and the reinforcing plate 1120. The horizontal plate 1130 is configured with a stabilizing wheel mounting interface 1140, and the reinforcing plate 1120 is configured with weight-reducing holes 1150.

[0035] The stabilizing wheel mounting base 110, configured on the top plate 100, is used to connect the stabilizing wheel in combination with its own stabilizing wheel mounting interface 1140. The stabilizing wheel mounted in this position also functions as a yawing stopper. When a track vehicle passes through a curve, the body and frame are deflected outward under the action of centrifugal force, but the magnitude of this deflection angle is constrained by the stabilizing wheel, effectively limiting the twisting of the body relative to the bogie and preventing mutual interference between components.

[0036] As shown in Figure 4, the stabilizing wheel mounting seat 110 includes two vertical plates 1110, one reinforcing plate 1120, and one horizontal plate 1130. These three types of plates can be formed into the stabilizing wheel mounting seat 110 by integral press molding, and after molding is complete, the stabilizing wheel mounting seat 110 is welded to the upper surface of the top plate 100. The reinforcing plate 1120 provides structural reinforcement, facilitating load transmission and improving the structural strength of the stabilizing wheel mounting seat 110. The reinforcing plate 1120 has weight-reducing holes 1150, which allows the reinforcing plate 1120 to have a lower weight while maintaining structural strength, which is advantageous for lightweight frame design.

[0037] As shown in Figures 1-3, each of the two side plates 300 is configured with a gearbox suspension seat 320 for mounting the gearbox. By providing a gearbox suspension seat 320 on both side plates 300, the mounting node for the gearbox suspension becomes a dual node, thereby improving radial and torsional rigidity.

[0038] In this embodiment, the gearbox suspension seat 320 is formed with a grooved gearbox suspension opening 330 whose opening faces backward to the web 200. The grooved gearbox suspension opening 330 forms a dual-node mounting node configuration, which can more effectively improve radial and torsional rigidity.

[0039] In another embodiment, the gearbox suspension seat 320 is formed with an annular gearbox suspension opening 330, which forms a dual-node mounting node configuration, thereby more effectively improving radial and torsional rigidity.

[0040] As shown in Figure 1, a running safety bracket 340 is connected to one end of the gearbox suspension seat 320 away from the side plate 300, and a bolster mounting seat 350 is connected to the other end of the running safety bracket 340 away from the gearbox suspension seat 320. The running safety bracket 340 supports the upper structure, including the top plate 100 and the gearbox suspension seat 320, and also allows for a smooth connection between the upper structure and the bolster mounting seat 350, making it easier to process and inspect the bolster mounting seat 350.

[0041] In the frame according to the present invention, a motor mounting seat 360 is provided at one end of each of the two side plates 300 closest to the top plate 100, and a motor mounting interface 370 is provided on the motor mounting seat 360. As can be understood, the motor mounting seat 360 can be used to connect a motor, and the provision of the corresponding motor mounting interface 370 facilitates the fixing of the motor by fastening members.

[0042] As shown in Figure 2, the two side plates 300 each have an inclined segment 380 formed between the bent portion 310 and the motor mounting seat 360, and a primary spring mounting seat 390 is attached to each of the two inclined segments 380.

[0043] The primary spring mounting seats are for mounting the primary springs, and each of the two primary spring mounting seats is attached to the inclined segments 380 of the two side plates 300. As a result, the two primary spring mounting seats are arranged in a "person" shape, and the two primary spring mounting seats arranged in a "person" shape prevent overshoot and act as an overshoot stopper.

[0044] In this embodiment, the two webs 200 are each provided with a side current collector mounting seat 220 located above the primary spring mounting seat, or a side current collector mounting seat 220 is provided in the center of the top plate 100. By mounting the two side current collector mounting seats 220 on the frame, the side current collectors can be mounted in different positions based on actual usage requirements, avoiding limitations on the mounting position of the side current collectors and increasing the flexibility of side current collector mounting.

[0045] As shown in Figure 3, the top plate 100, two webs 200, two side plates 300, and bottom plate 400 surround each other to form a frame cavity 500, and at least two rib plates 510 are mounted within the frame cavity 500 at intervals.

[0046] The internal rib plates 510 are used to reinforce the frame structure. Based on the "Y" shaped frame structure composed of the top plate 100, web 200, side plates 300, and bottom plate 400, the number of rib plates 510 used inside the frame cavity 500 is reduced, allowing the frame structure to be stable while meeting usage requirements with fewer rib plates 510, further ensuring frame weight reduction.

[0047] Based on the frame structure described above, it is possible to provide a welded steel frame for a suspended aerial rail train that is simple and novel in structure, space-saving, lightweight, and easy to install and remove.

[0048] In another embodiment, the present application further provides a trolley including the frame in the above-described embodiment.

[0049] In this embodiment, by installing the aforementioned frame on the trolley, the top plate 100 of the frame is recessed downward from both ends toward the central axis, and the middle part of the lower surface of the web 200 is extended away from the top plate 100. After attaching the web 200 to the lower surface of the top plate 100, the top plate 100 and the web 200 can form a "Y" shape structure. Furthermore, by combining this with the attachment of the side plates 300 and the bottom plate 400, a "Y" shape frame is formed. This "Y" shape frame configuration makes the frame structure more compact and reduces the occupied space. The "Y" shape frame configuration significantly reduces the use of structural components such as plates and beams while meeting the operational requirements of the frame, and further reduces the weight of the frame. Moreover, the "Y" shape frame reduces the thickness of the plate material, and the frame can be formed by welding thinner plate material while meeting the operational requirements of the frame, further reducing the weight of the frame.

[0050] In yet another embodiment, the present invention further provides a track vehicle particularly applicable to an aerial track, the track vehicle comprising a body equipped with the bogies of the above-described embodiment.

[0051] In this embodiment, by attaching the aforementioned bogie to the body of the track vehicle, the top plate 100 of the frame is recessed downward from both ends toward the central axis, and the middle part of the lower surface of the web 200 is extended away from the top plate 100. After attaching the web 200 to the lower surface of the top plate 100, the top plate 100 and the web 200 can form a "Y" shape structure. Furthermore, by combining this with the attachment of the side plates 300 and the bottom plate 400, a "Y" shape frame is formed. This "Y" shape frame configuration makes the frame structure more compact and reduces the occupied space. The "Y" shape frame configuration significantly reduces the use of structural components such as plates and beams while meeting the operational requirements of the frame, and further reduces the weight of the frame. Moreover, the "Y" shape frame reduces the thickness of the plate material, and the frame can be formed by welding thinner plate material while meeting the operational requirements of the frame, further reducing the weight of the frame.

[0052] However, the embodiments described above are merely for illustrative purposes and not limiting purposes, and although the present application has been described in detail with reference to the embodiments described above, it should be understood that those skilled in the art can still modify the technical means described in each of the embodiments above or replace some of the technical features with equivalent ones, and such modifications or replacements do not cause the essence of the corresponding technical means to deviate from the scope of the technical means of each embodiment of the present application. Explanation of the symbols

[0053] 100 Top plate, 110 Stabilizer wheel mounting base, 1110 Vertical plate, 1120 Reinforcement plate, 1130 Horizontal plate, 1140 Stabilizer wheel mounting interface, 1150 Weight reduction hole, 200 Web, 210 Extended segment, 220 Side current collector mounting base, 300 Side plate, 310 Bent section, 320 Gearbox suspension base, 330 Gearbox suspension opening, 340 Running safety bracket, 350 Bolster mounting base, 360 Motor mounting base, 370 Motor mounting interface, 380 Inclined segment, 390 Primary spring mounting base, 400 Bottom plate, 500 Frame cavity, 510 Rib plate.

Claims

1. The tabletop is concave downwards from both ends toward the central axis, Two webs, each connected to both sides of the top plate in the width direction, wherein the upper surface of each web conforms to the top plate, and the middle portion of the lower surface of each web extends away from the top plate, thereby forming an extended segment. Each of the two side plates is connected to both sides of the top plate in the longitudinal direction, and each of the two side plates is connected to the lower surface of the two webs, and each side plate has a bent portion at the position of the extended segment, and the bent portion is connected to the two side plates that are connected to the extended segment, A frame including the two webs and a bottom plate connected to the two side plates.

2. The frame according to claim 1, wherein the upper surface of the top plate is provided with stabilizing wheel mounting seats near both ends, the stabilizing wheel mounting seat includes two vertical plates installed parallel to each other with a gap in between, a reinforcing plate installed between the two vertical plates, and a horizontal plate located above the vertical plates and connected to the two vertical plates and the reinforcing plate, the horizontal plate having a stabilizing wheel mounting interface, and the reinforcing plate having weight-reducing holes.

3. Each of the two side plates is configured with a gearbox suspension seat. The gearbox suspension seat has a recessed groove-type gearbox suspension opening whose opening faces away from the web. Alternatively, the frame according to claim 1, wherein the gearbox suspension seat has a ring-shaped gearbox suspension opening formed therein.

4. The frame according to claim 3, wherein a driving safety bracket is connected to one end of the gearbox suspension seat away from the side plate, and a bolster mounting seat is connected to the other end of the driving safety bracket away from the gearbox suspension seat.

5. The frame according to claim 1, wherein a motor mounting seat is provided at one end of each of the two side plates closest to the top plate, and a motor mounting interface is provided on the motor mounting seat.

6. The frame according to claim 5, wherein each of the two side plates has an inclined segment formed between the bent portion and the motor mounting seat, and a primary spring mounting seat is attached to each of the two inclined segments.

7. The two webs are each provided with a side current collector mounting seat above the primary spring mounting seat. Alternatively, the frame according to claim 6, wherein a mounting base for a side current collector is provided in the center of the top plate.

8. The frame according to any one of claims 1 to 7, wherein the top plate, the two webs, the two side plates, and the bottom plate surround each other to form a frame cavity, and at least two rib plates are installed at intervals within the frame cavity.

9. A trolley including the frame according to any one of claims 1 to 8.

10. A track vehicle including a body equipped with the bogie described in claim 9.

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