Vehicle undercarriage and vehicle

Abstract

This application provides a vehicle chassis and a vehicle. The vehicle chassis includes a floor assembly, a crossbeam assembly, longitudinal beams, and a hook assembly. The floor assembly includes corrugated plates and damping plates, which are arranged along the length of the vehicle chassis and cover different areas. The longitudinal beams are supported below the floor assembly along the length of the vehicle chassis. The crossbeam assembly includes multiple crossbeams, which are supported below the floor assembly along the width of the vehicle chassis and are spaced apart along the length of the vehicle chassis. The corrugated plates and damping plates are connected by the crossbeams. At least one crossbeam is connected to a hook assembly. The vehicle chassis provided by this application is lightweight and improves the material utilization rate of various parts of the vehicle body while ensuring the structural strength and shock absorption effect.

Description

Technical Field

[0001] This application relates to the field of railway vehicles, and more particularly to a vehicle chassis and a vehicle. Background Technology

[0002] The vehicle chassis is the main structural frame at the bottom of the vehicle, which plays a basic supporting role in the vehicle and bears the weight of the vehicle itself, including the weight of the body, engine, accessories, passengers or cargo, etc. Its main structure consists of longitudinal beams, side beams, bolsters and buffers, large and small crossbeams and floor components.

[0003] Currently, to ensure the structural strength of the vehicle chassis and the vehicle's shock absorption effect, the structural beams are usually made of thick steel plates, the chassis accessories are fixed with multiple fasteners, and the floor is a superimposed structure of corrugated plates and shock-absorbing plates.

[0004] However, the existing vehicle chassis is relatively heavy, and there is too much safety redundancy in the design of locations where the structural strength requirements have already been met. Summary of the Invention

[0005] To address the aforementioned technical problems, this application provides a vehicle chassis and vehicle that are lightweight, which improves the material utilization rate of various parts of the vehicle chassis while ensuring the structural strength and shock absorption effect of the vehicle body.

[0006] This application provides a vehicle chassis including a floor assembly, a crossbeam assembly, longitudinal beams, and a hook assembly; the floor assembly includes corrugated plates and damping plates, which are arranged along the length of the vehicle chassis and cover different areas; the longitudinal beams are supported below the floor assembly along the length of the vehicle chassis.

[0007] The crossbeam assembly includes multiple crossbeams that support the floor assembly below the vehicle underframe along the width direction and are spaced apart along the length direction of the vehicle underframe; corrugated plates and damping plates are connected by the crossbeams.

[0008] At least one crossbeam is connected to a hook assembly.

[0009] As an alternative approach, this application provides a vehicle chassis in which the crossbeam includes a top wall, a side wall, and a bottom wall; the top wall and the bottom wall are connected to the two ends of the side wall in the height direction; the edge of the damping plate near the corrugated plate abuts against the top wall and is connected to the top wall; the edge of the corrugated plate near the damping plate is connected to the side wall.

[0010] As an alternative, this application provides a vehicle chassis in which a hook assembly includes a support plate and a hook member. The support plate is connected to a side wall, and at least a portion of the support plate extends below the bottom wall. The hook member is connected to the support plate on the side facing the crossbeam, and a portion of the hook member extends below the support plate.

[0011] As an alternative, this application provides a vehicle chassis, in which the support plate includes a support body and a bent portion. The support body is arranged parallel to the side wall and fits against the side wall. The bent portion is connected to the lower edge of the support body and extends away from the crossbeam relative to the support body. The hook extends from the side of the support body toward the crossbeam to below the bent portion.

[0012] As an alternative approach, this application provides a vehicle chassis in which the top wall and bottom wall are bent in the same direction relative to the side wall; the crossbeam also includes a reinforcing plate located on the side of the side wall facing the bending direction of the top and bottom walls, the upper edge of the reinforcing plate being welded to the lower surface of the top wall, and the lower edge of the reinforcing plate being welded to the upper surface of the bottom wall.

[0013] As an alternative approach, this application provides a vehicle chassis with multiple weight-reduction holes on the side wall, the multiple weight-reduction holes being arranged at intervals along the length direction of the crossbeam.

[0014] As an alternative, the vehicle chassis provided in this application further includes a limiting member, a pipeline, and a connecting bracket. The pipeline is arranged below the shock absorber. The limiting member has a limiting groove, the extension direction of which is consistent with the extension direction of the pipeline. The connecting bracket is connected to the pipeline, and at least two fasteners are connected to the connecting bracket. The at least two fasteners are arranged at intervals along the extension direction of the pipeline, and all fasteners are inserted into the limiting groove.

[0015] As an alternative, this application provides a vehicle chassis, in which the floor assembly further includes a floor component, a floor beam, a first rubber component, and a first connector, wherein the floor component is disposed above the corrugated plate and the damping plate; and the floor beam is disposed between the floor component, the corrugated plate, and the damping plate.

[0016] The first rubber component is connected to the upper surface of the damping plate, and the floor beam is connected to the top of the first rubber component. The upper surface of the floor beam is connected to the floor component. The first rubber component has a first mounting hole, which penetrates the first rubber component in a direction perpendicular to the floor beam. The first connector passes through the first mounting hole, and both ends of the first connector are fixedly connected to the damping plate.

[0017] As an alternative, this application provides a vehicle chassis, wherein the floor assembly further includes a second rubber component and a second connector.

[0018] The second rubber component is connected to the upper surface of the corrugated plate, which has a corrugated groove. The lower surface of the second rubber component matches the outline shape of the corrugated groove. The floor beam is connected to the top of the second rubber component. The second rubber component has a second mounting hole that extends through the second rubber component along the extension direction of the corrugated groove. A second connector passes through the second mounting hole, and both ends of the second connector are fixedly connected to the corrugated plate.

[0019] This application provides a vehicle, which includes the aforementioned vehicle chassis.

[0020] This application provides a vehicle chassis and a vehicle. The vehicle chassis includes a floor assembly, a crossbeam assembly, longitudinal beams, and a hook assembly. The floor assembly includes corrugated plates and damping plates, which are arranged along the length of the vehicle chassis and cover different areas. The longitudinal beams are supported below the floor assembly along the length of the vehicle chassis. The crossbeam assembly includes multiple crossbeams, which are supported below the floor assembly along the width of the vehicle chassis and are spaced apart along the length of the vehicle chassis. The corrugated plates and damping plates are connected by the crossbeams. At least one crossbeam is connected to a hook assembly. The vehicle chassis provided by this application is lightweight and improves the material utilization rate of various parts of the vehicle chassis while ensuring the structural strength and shock absorption effect of the vehicle body. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the vehicle chassis structure provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the beam structure provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the connection node between the damping plate and the corrugated plate provided in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the connection between the hook assembly and the crossbeam provided in an embodiment of this application;

[0026] Figure 5 This is a side view of the connection between the hook assembly and the crossbeam provided in an embodiment of this application;

[0027] Figure 6 This is a schematic diagram of the weight reduction hole for the crossbeam provided in an embodiment of this application;

[0028] Figure 7 This is a schematic diagram of the installation of the limiting groove provided in an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the installation method of the floor beam in the damping plate area provided in the embodiments of this application;

[0030] Figure 9This is a schematic diagram of the installation of the first rubber component provided in an embodiment of this application;

[0031] Figure 10 This is a schematic diagram of the installation method of the floor beam in the corrugated plate area provided in the embodiments of this application;

[0032] Figure 11 This is a schematic diagram of the installation of the second rubber component provided in an embodiment of this application;

[0033] Figure 12a This is a front view of a schematic diagram of the first rubber component structure provided in an embodiment of this application;

[0034] Figure 12b A top view of the first rubber component structure provided in the embodiments of this application;

[0035] Figure 13a This is a front view of a schematic diagram of the second rubber component structure provided in an embodiment of this application;

[0036] Figure 13b This is a side view of the second rubber component structure provided in an embodiment of this application;

[0037] Figure 13c This is a top view of the second rubber component structure provided in an embodiment of this application.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10 - Vehicle chassis;

[0040] 100 - Floor assembly; 110 - Corrugated sheet; 120 - Damping plate; 130 - Floor piece; 140 - Floor beam; 150 - First rubber component; 151 - First mounting hole; 152 - Phillips head countersunk self-tapping screw; 153 - Damping pad; 154 - Hex nut; 155 - Hex head bolt; 156 - Large washer; 157 - Flat washer; 158 - Washer; 160 - First connector; 161 - Closed-type flat round head blind rivet; 170 - Second rubber component; 180 - Second connector; 181 - Second mounting hole;

[0041] 200 - Crossbeam; 210 - Top wall; 220 - Side wall; 230 - Bottom wall; 240 - Weight reduction hole;

[0042] 300 - Hook assembly; 310 - Support plate; 311 - Support body; 312 - Bending section; 320 - Hook component;

[0043] 400 - Base frame accessories; 410 - Piping; 420 - Limiting components; 430 - Limiting grooves;

[0044] 500 - Longitudinal beam. Detailed Implementation

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0047] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0048] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such as a process, method, system, product, or maintenance tool that includes a series of steps or units, not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or maintenance tool.

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] In recent years, with the rapid development of transportation, the requirements for vehicle lightweighting, structural strength, and vibration damping performance have been continuously increasing. The current research direction is to maximize the use of technical experience and the most effective design methods to control and manage the weight of vehicle components and the overall vehicle weight while ensuring structural strength and vibration damping performance. The vehicle chassis is the main structural frame at the bottom of the vehicle, playing a fundamental supporting role. It bears the weight of the vehicle itself, including the body, engine, accessories, passengers, or cargo. Its main structure consists of longitudinal beams, side beams, bolsters, large and small crossbeams, and floor components. It is heavy and requires high strength. Currently, vehicle chassis structural beams typically use thick steel plates, and chassis accessories and floor components are fixed using multiple fasteners. Vibration damping plates are added at the engine mounting location to ensure structural strength and vehicle vibration damping effect. However, existing vehicle chassis structural designs still have shortcomings: the overall vehicle body is heavy, the structure is complex, and excessive safety redundancy is incorporated into locations that already meet structural requirements.

[0051] To address the aforementioned technical problems and improve the vehicle chassis, this application provides a vehicle chassis and vehicle that are simple in structure and lightweight. While ensuring the structural strength and shock absorption effect of the vehicle body, it can improve the material utilization rate of various parts of the vehicle chassis.

[0052] like Figures 1 to 7 This application provides a vehicle chassis 10, including a floor assembly 100, a crossbeam assembly, a longitudinal beam 500, and a hook assembly 300; the floor assembly 100 includes a corrugated plate 110 and a shock-absorbing plate 120, which are arranged along the length of the vehicle chassis 10 and cover different areas; the longitudinal beam 500 is supported under the floor assembly 100 along the length of the vehicle chassis 10.

[0053] The crossbeam assembly includes multiple crossbeams 200, which are supported below the floor assembly 100 along the width direction of the vehicle underframe 10 and are spaced apart along the length direction of the vehicle underframe 10; the corrugated plate 110 and the damping plate 120 are connected by the crossbeams 200.

[0054] At least one crossbeam 200 is connected to a hook assembly 300.

[0055] Understandably, the corrugated structure of the corrugated plate 110 gives it high impact resistance and compressive strength, enabling it to withstand various vibrations and impacts during vehicle operation. The corrugated plate 110 is laid along the length of the vehicle underframe 10 and is supported by the crossbeam 200 and longitudinal beam 500. However, significant vibrations may occur at the engine mounting location and other equipment mounting locations on the vehicle underframe 10, requiring the addition of a damping plate 120. In this application, the corrugated plate 110 is removed at the location where the damping plate 120 is to be added, and a longitudinal beam 500 along the vehicle length is added below the damping plate 120 for support, thus reducing the weight of the vehicle underframe 10 while ensuring damping performance.

[0056] The corrugated plate 110 and the damping plate 120 form the iron floor structure. Since the corrugated plate 110 below the damping plate 120 area is removed, a discontinuity appears at the joint of the corrugated plate 110 and the damping plate 120 in the iron floor structure. The discontinuity needs to be connected and supported by the crossbeam 200.

[0057] Understandably, due to tooling limitations, the hook assembly 300 is welded after the frame, crossbeams, and iron floor are assembled and welded. Due to space constraints, the top of the hook assembly 300 and the crossbeam 200 cannot be inspected, and welding is even impossible when the distance is less than 50mm. In this application, the hook assembly 300 is welded to the crossbeam 200 before hoisting to form a small assembly. The weld can be inspected in advance to prevent the inspection position from being limited after hoisting.

[0058] like Figure 2 , Figure 3 As an alternative approach, this application provides a vehicle chassis 10, wherein the crossbeam 200 includes a top wall 210, a side wall 220, and a bottom wall 230; the top wall 210 and the bottom wall 230 are connected to the two ends of the side wall 220 in the height direction; the edge of the damping plate 120 near the corrugated plate 110 abuts against the top wall 210 and is connected to the top wall 210; the edge of the corrugated plate 110 near the damping plate 120 is connected to the side wall 220.

[0059] It is understandable that the top wall 210 and the bottom wall 230 are connected to the same side of the side wall 220, and their cross-sections are formed as follows: Figure 2 The structure is shown as a "C" shape. The upper end of the crossbeam 200 supports the iron floor structure, and the lower end is supported by the side beams. Specifically, a crossbeam 200 is provided at the discontinuity of the iron floor structure, i.e., at the joint between the damping plate 120 and the corrugated plate 110. The damping plate 120 abuts against the top wall 210 of the crossbeam 200 and can be fixed by welding. The corrugated plate 110 is connected to the side wall 220 on the side opposite to the top wall 210 and can be fixed by welding.

[0060] like Figure 4 , Figure 5As an alternative approach, this application provides a vehicle chassis 10, in which a hook assembly 300 includes a support plate 310 and a hook member 320. The support plate 310 is connected to a side wall 220, and at least a portion of the support plate 310 extends below the bottom wall 230. The hook member 320 is connected to the side of the support plate 310 facing the crossbeam 200, and a portion of the hook member 320 extends below the support plate 310.

[0061] Understandably, the support plate 310 is used to connect the crossbeam 200 and the hook component 320, which can increase the contact area between the hook assembly 300 and the crossbeam 200, making the hook assembly 300 and the crossbeam 200 more securely fixed when they form a small component, and the overall component is stronger.

[0062] As an alternative, this application provides a vehicle chassis 10, in which a support plate 310 includes a support body 311 and a bending portion 312. The support body 311 is arranged parallel to the side wall 220 and fits against the side wall 220. The bending portion 312 is connected to the lower edge of the support body 311 and extends away from the crossbeam 200 relative to the support body 311. A hook 320 extends from the side of the support body 311 toward the crossbeam 200 to below the bending portion 312.

[0063] Understandably, the support body 311 is attached to the side wall 220 away from the top wall 210 and bottom wall 230, and can be fixed by welding; the hook 320 is connected to the side of the support body 311 facing the crossbeam 200, and can be fixed by welding; the hook 320 extends from the side of the support body 311 facing the crossbeam 200 to below the bend 312, forming a hook, and the hook and bend 312 are attached, and can be fixed by welding; the hook 320 and the bottom wall 230 have a contact surface, and the contact surface can be fixed by welding. Through the connection and fixing between the above components, the hook assembly 300 and the crossbeam 200 can form a structurally stable small assembly.

[0064] As an alternative, this application provides a vehicle chassis 10 in which the top wall 210 and bottom wall 230 are bent in the same direction relative to the side wall 220; the crossbeam 200 also includes a reinforcing plate located on the side of the side wall 220 facing the bending direction of the top wall 210 and bottom wall 230, the upper edge of the reinforcing plate is welded to the lower surface of the top wall 210, and the lower edge of the reinforcing plate is welded to the upper surface of the bottom wall 230.

[0065] Understandably, bending the top wall 210 and bottom wall 230 in the same direction relative to the side wall 220 increases the structural strength of the crossbeam 200. The thickness of the reinforcing plate for the crossbeam 200 is selected based on whether there is hoisting equipment and the weight of the hoisting equipment, in order to ensure structural strength while limiting weight.

[0066] For example, such as Figure 2When there is no lifting equipment for the crossbeam 200, the plate thickness of the crossbeam 200 can be set to 4mm; when the weight of the lifting equipment for the crossbeam 200 is less than 800Kg, a reinforcing plate can be installed to make the plate thickness of the crossbeam 200 6mm; for example Figure 3 , Figure 5 When the weight of the equipment being lifted by the crossbeam 200 exceeds 800 kg, the crossbeam 200 can be made of channel steel. The connection between the corrugated plate 110 and the damping plate 120, as well as the crossbeam 200 with hooks, bears a large load and therefore requires the use of channel steel.

[0067] like Figure 6 As an alternative approach, this application provides a vehicle chassis 10 with a plurality of weight-reducing holes 240 on the side wall 220, the plurality of weight-reducing holes 240 being arranged at intervals along the length of the crossbeam 200.

[0068] Optionally, the weight reduction holes 240 can be circular, rectangular, triangular or elliptical, etc., and the number depends on the situation. They can be distributed at equal intervals or at unequal intervals on the side wall 220.

[0069] For example, when the crossbeam 200 has no lifting equipment, its side wall 220 can be provided with 5 elongated oval weight-reducing holes 240 distributed at equal intervals; when there is a lifting equipment for the crossbeam 200, its side wall 220 can be provided with 5 elongated oval weight-reducing holes 240 of different spacing and size, and the un-holeed positions are used for welding accessories such as hook assemblies.

[0070] like Figure 7 As an alternative, the vehicle chassis 10 provided in this application further includes a limiting member 420, a pipe 410, and a connecting bracket. The pipe 410 is arranged below the shock absorber 120. The limiting member 420 has a limiting groove 430, the extension direction of which is consistent with the extension direction of the pipe 410. The connecting bracket is connected to the pipe 410, and at least two fasteners are connected to the connecting bracket. The at least two fasteners are arranged at intervals along the extension direction of the pipe 410, and all fasteners are inserted into the limiting groove 430.

[0071] Understandably, underframe accessories 400, such as pipes 410 and cables, may shake, sway, or shift during vehicle operation. Without proper securing, they may suffer wear and damage from impacts. Pipes 410 can be secured using limiting slots 430 and connecting brackets. The connecting brackets include at least two fasteners, which can be bolts. These at least two fasteners are positioned along the length of pipes 410, ensuring that pipes 410 are aligned in a straight line. Limiting members 420 are installed below the metal floor. The extending direction of the limiting slots 430 is consistent with the extending direction of pipes 410, allowing at least two fasteners to be inserted into a single limiting slot 430 simultaneously. This design secures pipes 410 while reducing the number of limiting members 420, achieving a lightweight effect.

[0072] Optionally, the limiting groove 430 can be a C-shaped groove, and the connecting bracket and the pipeline 410 are connected by clamps and bolts, and the C-shaped groove is connected by bolts.

[0073] The pipeline can also be fixed using C-grooves. The C-grooves are arranged along the extension direction of the pipeline. By controlling the spacing of the C-grooves to fix the pipeline to 300mm, the pipeline can be effectively fixed while minimizing the number of C-grooves, thus achieving the effect of vehicle weight reduction.

[0074] like Figures 8 to 1 3. As an alternative approach, the vehicle chassis 10 provided in this application includes a floor assembly 100 that further comprises a floor component 130, a floor beam 140, a first rubber component 150, and a first connector 160. The floor component 130 is disposed above the corrugated plate 110 and the damping plate 120; the floor beam 140 is disposed between the floor component 130, the corrugated plate 110, and the damping plate 120.

[0075] The first rubber component 150 is connected to the upper surface of the damping plate 120, and the floor beam 140 is connected to the top of the first rubber component 150. The upper surface of the floor beam 140 is connected to the floor component 130. The first rubber component 150 has a first mounting hole 151, which penetrates the first rubber component 150 in a direction perpendicular to the floor beam 140. The first connector 160 passes through the first mounting hole 151, and both ends of the first connector 160 are fixedly connected to the damping plate 120.

[0076] The floor beam 140 supports the floor component 130, and the first rubber component 150 and the first connector 160 connect the damping plate 120 and the floor component 130. The floor beam 140 and the floor component 130 can be connected by Phillips head countersunk self-tapping screws 152, and a damping pad 153 is provided between the floor beam 140 and the floor component 130. The floor beam 140 and the first rubber component 150 can be connected by hexagonal nuts 154 and hexagonal head bolts 155, and a large washer 156 and a flat washer 157 are provided between the hexagonal nut 154 and the first rubber component 150. The hexagonal head bolt 155 is partially embedded inside the first rubber component 150 and is provided with a washer 158 to prevent it from falling off. The first connector 160 is connected to the damping plate 120 by a closed flat round head pop rivet 161. By connecting the aforementioned components, multiple first rubber parts 150 and first connecting parts 160 are provided in the area of ​​the damping plate 120, which can fix the floor piece 130 to the damping plate 120. This solution uses rubber parts instead of commonly used floor brackets, achieving a lightweight effect.

[0077] As an alternative, this application provides a vehicle chassis 10, the floor assembly 100 of which further includes a second rubber element 170 and a second connector 180.

[0078] The second rubber component 170 is connected to the upper surface of the corrugated plate 110, which has a corrugated groove. The lower surface of the second rubber component 170 matches the contour shape of the corrugated groove. The floor beam 140 is connected to the top of the second rubber component 170. The second rubber component 170 has a second mounting hole 181, which extends through the second rubber component 170 along the extension direction of the corrugated groove. The second connector 180 passes through the second mounting hole 181, and both ends of the second connector 180 are fixedly connected to the corrugated plate 110.

[0079] Similarly, the floor assembly 100 in the corrugated plate 110 area is provided with a second rubber component 170 and a second connector 180 for connecting the corrugated plate 110 and the floor component 130. The floor beam 140 and the floor component 130 in the corrugated plate 110 area can be connected by a cross-slot countersunk self-tapping screw 152. A shock-absorbing pad 153 is provided between the floor beam 140 and the floor component 130. The floor beam 140 and the second rubber component 170 can be connected by a hex nut 154 and a hex head bolt 155. A large washer 156 and a flat washer 157 are provided between the hex nut 154 and the second rubber component 170. The hex head bolt 155 is partially embedded inside the second rubber component 170 and is provided with a washer 158 to prevent it from falling off. The second connector 180 is located at the trough of the corrugated plate 110 and is connected to the corrugated plate 110 by a closed flat round head pop rivet 161.

[0080] Optionally, the first rubber component 150 and the second rubber component 170 can be made of EPDM rubber, the first connector 160 and the second connector 180 can be made of hot-rolled steel plate, and the gasket 158 ​​can be made of hot-rolled steel plate. The type of hot-rolled steel plate can be selected according to the strength requirements.

[0081] This application provides a vehicle, including the aforementioned vehicle chassis 10.

[0082] It is understood that the vehicle chassis 10 provided in this application is used for a vehicle, such as a subway car, a train car, or other rail vehicle, and can reduce the weight of the vehicle.

[0083] This application provides a vehicle chassis 10 and a vehicle. The vehicle chassis 10 includes a floor assembly 100, a crossbeam assembly, longitudinal beams 500, and a hook assembly 300. The floor assembly 100 includes a corrugated plate 110 and a damping plate 120, which are arranged along the length of the vehicle chassis 10 and cover different areas. The longitudinal beams 500 are supported below the floor assembly 100 along the length of the vehicle chassis 10. The crossbeam assembly includes a plurality of crossbeams 200, which are supported below the floor assembly 100 along the width of the vehicle chassis 10 and are spaced apart along the length of the vehicle chassis 10. The corrugated plate 110 and the damping plate 120 are connected by the crossbeams 200. At least one crossbeam 200 is connected to a hook assembly 300. The vehicle chassis 10 provided in this application is lightweight, which can improve the material utilization rate of various parts of the vehicle body while ensuring the structural strength and shock absorption effect of the vehicle body.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A vehicle chassis (10), characterized in that, The vehicle chassis (10) includes a floor assembly (100), a crossbeam assembly, a longitudinal beam (500), and a hook assembly (300); the floor assembly (100) includes a corrugated plate (110) and a shock-absorbing plate (120), the corrugated plate (110) and the shock-absorbing plate (120) are arranged along the length of the vehicle chassis (10), and the corrugated plate (110) and the shock-absorbing plate (120) cover different areas, and the corrugated plate (110) is removed at the location where the shock-absorbing plate (120) is added; the longitudinal beam (500) is supported under the floor assembly (100) along the length of the vehicle chassis (10); The crossbeam assembly includes a plurality of crossbeams (200), which are supported below the floor assembly (100) along the width direction of the vehicle underframe (10) and are spaced apart along the length direction of the vehicle underframe (10); the corrugated plate (110) and the shock-absorbing plate (120) are connected by the crossbeams (200); At least one of the beams (200) is connected to the hook assembly (300); The crossbeam (200) includes a top wall (210), a side wall (220), and a bottom wall (230); the top wall (210) and the bottom wall (230) are connected at both ends of the side wall (220) in the height direction; the edge of the damping plate (120) near the corrugated plate (110) abuts against the top wall (210) and is connected to the top wall (210); the edge of the corrugated plate (110) near the damping plate (120) is connected to the side wall (220).

2. The vehicle chassis (10) according to claim 1, characterized in that, The hook assembly (300) includes a support plate (310) and a hook member (320), the support plate (310) being connected to the side wall (220), and at least a portion of the support plate (310) extending below the bottom wall (230); the hook member (320) being connected to the support plate (310) on the side facing the crossbeam (200), and a portion of the hook member (320) extending below the support plate (310).

3. The vehicle chassis (10) according to claim 2, characterized in that, The support plate (310) includes a support body (311) and a bending portion (312). The support body (311) is arranged parallel to the side wall (220) and fits against the side wall (220). The bending portion (312) is connected to the lower edge of the support body (311) and extends away from the crossbeam (200) relative to the support body (311). The hook (320) extends from the side of the support body (311) toward the crossbeam (200) to below the bending portion (312).

4. The vehicle chassis (10) according to claim 1, characterized in that, The top wall (210) and the bottom wall (230) are bent in the same direction relative to the side wall (220); the crossbeam (200) also includes a reinforcing plate located on the side of the side wall (220) facing the bending direction of the top wall (210) and the bottom wall (230), the upper edge of the reinforcing plate is welded to the lower surface of the top wall (210), and the lower edge of the reinforcing plate is welded to the upper surface of the bottom wall (230).

5. The vehicle undercarriage (10) of claim 1, characterized in that, The sidewall (220) is provided with a plurality of weight-reducing holes (240), which are arranged at intervals along the length of the crossbeam (200).

6. Vehicle underbody (10) according to any one of claims 1 to 5, characterized in that It also includes a limiting member (420), a pipe (410), and a connecting bracket. The pipe (410) is arranged below the damping plate (120). The limiting member (420) has a limiting groove (430), and the extending direction of the limiting groove (430) is consistent with the extending direction of the pipe (410). The connecting bracket is connected to the pipe (410), and at least two fasteners are connected to the connecting bracket. The at least two fasteners are arranged at intervals along the extending direction of the pipe (410), and the fasteners are all inserted into the limiting groove (430).

7. Vehicle underbody (10) according to any one of claims 1 to 5, characterized in that The floor assembly (100) further includes a floor piece (130), a floor beam (140), a first rubber piece (150), and a first connector (160). The floor piece (130) is disposed above the corrugated plate (110) and the damping plate (120). The floor beam (140) is disposed between the floor piece (130), the corrugated plate (110), and the damping plate (120). The first rubber component (150) is connected to the upper surface of the damping plate (120), and the floor beam (140) is connected to the top of the first rubber component (150). The upper surface of the floor beam (140) is connected to the floor component (130). The first rubber component (150) has a first mounting hole (151). The first mounting hole (151) passes through the first rubber component (150) in a direction perpendicular to the floor beam (140). The first connector (160) passes through the first mounting hole (151). Both ends of the first connector (160) are fixedly connected to the damping plate (120).

8. The vehicle undercarriage (10) of claim 7, characterized in that, The floor assembly (100) also includes a second rubber component (170) and a second connector (180); The second rubber component (170) is connected to the upper surface of the corrugated plate (110), the corrugated plate (110) has a corrugated groove, and the lower surface of the second rubber component (170) matches the contour shape of the corrugated groove; the floor beam (140) is connected to the top end of the second rubber component (170); the second rubber component (170) has a second mounting hole (181), the second mounting hole (181) extends through the second rubber component (170) along the extension direction of the corrugated groove, the second connector (180) passes through the second mounting hole (181), and both ends of the second connector (180) are fixedly connected to the corrugated plate (110).

9. A vehicle characterized by comprising: The vehicle includes a vehicle chassis (10) as described in any one of claims 1-8.

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