Vehicle chassis and vehicle

Abstract

The invention provides a vehicle chassis and a vehicle. The vehicle chassis comprises a floor assembly, a cross beam assembly, a longitudinal beam and a lifting hook assembly. The floor assembly comprises a corrugated plate and a damping plate, the corrugated plate and the damping plate are arranged in the length direction of the vehicle chassis, and the corrugated plate and the damping plate cover different areas; the longitudinal beam is supported below the floor assembly in the length direction of the vehicle chassis. The cross beam assembly comprises a plurality of cross beams, and the cross beams are supported below the floor assembly in the width direction of the vehicle chassis and are arranged at intervals in the length direction of the vehicle chassis; the corrugated plate is connected with the damping plate through the cross beam; and at least one cross beam is connected with a lifting hook assembly. The vehicle chassis provided by the invention has the characteristic of light weight, and the material utilization rate of each part of a vehicle body can be improved while the structural strength and the damping effect of the vehicle body are ensured.

Description

Technical Field

[0001] The present application relates to the field of railway vehicles, and in particular to a vehicle underframe and a vehicle. Background Art

[0002] The vehicle underframe is the main structural frame at the bottom of the vehicle. It 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. Its main structure is composed of longitudinal beams, side beams, bolsters, large and small cross beams and floor components.

[0003] At present, in order to ensure the structural strength of the vehicle chassis and the shock absorption effect of the vehicle, thick steel plates are usually used for structural beams, the chassis accessories are fixed with multiple fixings, and the iron floor is a superimposed structure of corrugated plates and shock-absorbing plates.

[0004] However, the existing vehicle chassis is overall heavy, and too much safety redundancy is designed in positions that have already met the structural strength requirements. Summary of the invention

[0005] In response to the above technical problems, the present application provides a vehicle underframe and a vehicle, which have the characteristics of being lightweight and can improve the material utilization rate of various parts of the vehicle underframe while ensuring the structural strength and shock absorption effect of the vehicle body.

[0006] A vehicle chassis provided in the present application includes a floor assembly, a crossbeam assembly, a longitudinal beam and a hook assembly; the floor assembly includes a corrugated plate and a shock-absorbing plate, the corrugated plate and the shock-absorbing plate are arranged along the length direction of the vehicle chassis, and the corrugated plate and the shock-absorbing plate cover different areas; the longitudinal beam is supported below the floor assembly along the length direction of the vehicle chassis.

[0007] The crossbeam assembly includes a plurality of crossbeams, which are supported below the floor assembly along the width direction of the vehicle chassis and are arranged at intervals along the length direction of the vehicle chassis; the corrugated plate and the shock-absorbing plate are connected by the crossbeams.

[0008] A hook assembly is connected to at least one of the crossbeams.

[0009] As an optional method, the present application provides a vehicle chassis, wherein the crossbeam includes a top wall, a side wall and a bottom wall; the top wall and the bottom wall are connected to both ends of the side wall in the height direction; the edge of the shock-absorbing plate close to the corrugated plate abuts against the top of the top wall and is connected to the top wall; the edge of the corrugated plate close to the shock-absorbing plate is connected to the side wall.

[0010] As an optional method, the present application provides a vehicle underframe, wherein the hook assembly includes a support plate and a hook member, the support plate is connected to the side wall, and at least a portion of the structure of the support plate extends below the bottom wall; the hook member is connected to the side of the support plate facing the cross beam, and a portion of the structure of the hook member extends below the support plate.

[0011] As an optional method, the present application provides a vehicle underframe, wherein the support plate includes a support body and a bent portion, the support body is arranged parallel to the side wall and fits with the side wall; the bent portion is connected to the lower edge of the support body and extends in a direction away from the crossbeam relative to the support body; the hook member extends from the side of the support body toward the crossbeam to below the bent portion.

[0012] As an optional method, the present application provides a vehicle chassis, in which the top wall and the bottom wall are bent in the same direction relative to the side wall; the crossbeam also includes a reinforcing plate, which is located on the side of the side wall toward the bending direction of the top wall and the bottom wall, and the upper edge of the reinforcing plate is welded to the lower surface of the top wall, and the lower edge of the reinforcing plate is welded to the upper surface of the bottom wall.

[0013] As an optional method, the present application provides a vehicle chassis, wherein the side wall is provided with a plurality of weight-reducing holes, and the plurality of weight-reducing holes are arranged at intervals along the length direction of the crossbeam.

[0014] As an optional method, a vehicle underframe provided in the present application also includes a limit member, a pipeline and a connecting bracket, the pipeline is arranged below the shock-absorbing plate, the limit member has a limit groove, and the extension direction of the limit groove 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, at least two fasteners are arranged at intervals along the extension direction of the pipeline, and the fasteners are all inserted in the limit groove.

[0015] As an optional method, the present application provides a vehicle chassis, wherein the floor assembly also includes a floor member, a floor beam, a first rubber member and a first connecting member, the floor member is arranged above the corrugated plate and the shock-absorbing plate; the floor beam is arranged between the floor member and the corrugated plate and the shock-absorbing plate.

[0016] The first rubber member is connected to the upper surface of the shock absorbing plate, the floor beam is connected to the top of the first rubber member, and the upper surface of the floor beam is connected to the floor member; the first rubber member has a first mounting hole, the first mounting hole penetrates the first rubber member in a direction perpendicular to the floor beam, the first connecting member is penetrated in the first mounting hole, and both ends of the first connecting member are fixedly connected to the shock absorbing plate.

[0017] As an optional manner, the vehicle chassis provided in the present application, wherein the floor assembly further includes a second rubber member and a second connecting member.

[0018] The second rubber member is connected to the upper surface of the corrugated plate, the corrugated plate has a corrugated groove, and the lower surface of the second rubber member matches the contour shape of the corrugated groove; the floor beam is connected to the top end of the second rubber member; the second rubber member has a second mounting hole, the second mounting hole penetrates the second rubber member along the extension direction of the corrugated groove, the second connecting member is penetrated in the second mounting hole, and both ends of the second connecting member are fixedly connected to the corrugated plate.

[0019] The present application provides a vehicle, which includes the above-mentioned vehicle chassis.

[0020] The present application provides a vehicle chassis and a vehicle, wherein the vehicle chassis comprises a floor assembly, a crossbeam assembly, a longitudinal beam and a hook assembly; the floor assembly comprises a corrugated plate and a shock-absorbing plate, the corrugated plate and the shock-absorbing plate are arranged along the length direction of the vehicle chassis, and the corrugated plate and the shock-absorbing plate cover different areas; the longitudinal beam is supported below the floor assembly along the length direction of the vehicle chassis; the crossbeam assembly comprises a plurality of crossbeams, the plurality of crossbeams are supported below the floor assembly along the width direction of the vehicle chassis, and the plurality of crossbeams are arranged at intervals along the length direction of the vehicle chassis; the corrugated plate and the shock-absorbing plate are connected by a crossbeam; and a hook assembly is connected to at least one crossbeam. The vehicle chassis provided by the present application has the characteristics of being lightweight, and can improve the material utilization rate of various parts of the vehicle chassis while ensuring the structural strength and shock-absorbing effect of the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 A schematic diagram of the vehicle chassis structure provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a beam structure provided in an embodiment of the present application;

[0024] Figure 3 A schematic diagram of a connection node between a shock-absorbing plate and a corrugated plate provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the connection between the hook assembly and the crossbeam provided in an embodiment of the present application;

[0026] Figure 5 A side view of the connection between the hook assembly and the crossbeam provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a beam weight-reducing hole provided in an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the installation of the limit slot provided in the embodiment of the present application;

[0029] Figure 8 A schematic diagram of the installation method of the floor beam in the damping plate area provided in the embodiment of the present application;

[0030] Fig. 9A schematic diagram of the installation of a first rubber member provided in an embodiment of the present application;

[0031] Fig.10 A schematic diagram of the installation method of the floor beam in the corrugated plate area provided in the embodiment of the present application;

[0032] Fig.11 A schematic diagram of the installation of the second rubber member provided in an embodiment of the present application;

[0033] Fig.12a A front view of a schematic structural diagram of a first rubber member provided in an embodiment of the present application;

[0034] Figure 12b A top view of the schematic structural diagram of the first rubber member provided in an embodiment of the present application;

[0035] Fig.13a A front view of a schematic structural diagram of a second rubber member provided in an embodiment of the present application;

[0036] Fig.13b A side view of a schematic structural diagram of a second rubber member provided in an embodiment of the present application;

[0037] Fig.13c This is a top view of the schematic structural diagram of the second rubber member provided in an embodiment of the present application.

[0038] Description of reference numerals:

[0039] 10-Vehicle chassis;

[0040] 100-floor assembly; 110-corrugated plate; 120-shock-absorbing plate; 130-floor member; 140-floor beam; 150-first rubber member; 151-first mounting hole; 152-cross recessed countersunk tapping screw; 153-shock-absorbing pad; 154-hexagonal nut; 155-hexagonal bolt; 156-large washer; 157-flat washer; 158-washer; 160-first connecting member; 161-closed flat round head blind rivet; 170-second rubber member; 180-second connecting member; 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 portion; 320-hook member;

[0043] 400- chassis accessories; 410- pipeline; 420- limiter; 430- limiter groove;

[0044] 500-longitudinal beam. DETAILED DESCRIPTION

[0045] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

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

[0048] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or service tool that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or service tool.

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In recent years, with the rapid development of transportation, the requirements for vehicle lightweight, structural strength, and shock absorption performance have been continuously improved. The current research direction is to maximize the use of technical experience and the most effective design methods to control and manage the components and overall weight of the vehicle while ensuring structural strength and shock absorption performance. The vehicle chassis is the main structural frame at the bottom of the vehicle, which plays a basic supporting role in the vehicle. It 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, traction pillows, large and small cross beams and floor assemblies. It is heavy and has high strength requirements. At present, thick steel plates are usually used for vehicle chassis structural beams, chassis accessories and floor assemblies are fixed with multiple fixings, and shock absorbing plates need to be added at the engine installation to ensure structural strength and vehicle shock absorption effect. However, the existing vehicle chassis structure design still has shortcomings. The overall body is heavy, the structure is complex, and too much safety redundancy is designed in the position where the structural requirements have been met.

[0051] In order to solve the above technical problems, the vehicle underframe is improved. The present application provides a vehicle underframe and a vehicle, which have the characteristics of simple structure and light weight. While ensuring the structural strength and shock absorption effect of the vehicle body, the material utilization rate of each part of the vehicle underframe can be improved.

[0052] like Figures 1 to 7 The present application provides a vehicle chassis 10, comprising a floor assembly 100, a crossbeam assembly, a longitudinal beam 500 and a hook assembly 300; the floor assembly 100 comprises 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 direction of the vehicle chassis 10, and the corrugated plate 110 and the shock-absorbing plate 120 cover different areas; the longitudinal beam 500 is supported below the floor assembly 100 along the length direction of the vehicle chassis 10.

[0053] The cross beam assembly includes a plurality of cross beams 200 , which are supported below the floor assembly 100 along the width direction of the vehicle chassis 10 and are arranged at intervals along the length direction of the vehicle chassis 10 ; the corrugated plate 110 and the shock absorbing plate 120 are connected by the cross beams 200 .

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

[0055] It is understandable that the corrugated structure of the corrugated plate 110 makes it have high impact resistance and compressive strength, and can withstand various vibrations and impacts during the operation of the vehicle. The corrugated plate 110 is laid along the length direction of the vehicle chassis 10 and supported by the crossbeam 200 and the longitudinal beam 500. However, large vibrations may occur at the engine hoisting place and other equipment hoisting places of the vehicle chassis 10, and a shock-absorbing plate 120 needs to be added. The present application cancels the corrugated plate 110 at the location where the shock-absorbing plate 120 is added, and adds a longitudinal beam 500 along the vehicle length direction under the shock-absorbing plate 120 for support, which reduces the weight of the vehicle chassis 10 while ensuring the shock-absorbing performance.

[0056] Among them, the corrugated plate 110 and the shock-absorbing plate 120 form an iron floor structure. Since the corrugated plate 110 below the shock-absorbing plate 120 area is cancelled, a fault appears in the iron floor structure at the joint of the corrugated plate 110 and the shock-absorbing plate 120, and the fault needs to be connected and supported by the crossbeam 200.

[0057] It is understandable that due to limited tooling, the hook assembly 300 is welded after the frame, longitudinal beams and other skeletons and the iron floor are welded. The hook assembly 300 and the top of the beam 200 cannot be inspected due to limited space, and welding is even impossible when the distance is less than 50 mm. In this application, the hook assembly 300 is welded to the beam 200 before lifting to form a small assembly, and the welding joints can be inspected in advance to prevent the inspection position from being limited after lifting.

[0058] like Figure 2 , Figure 3 As an optional method, the present application provides a vehicle chassis 10, wherein the cross beam 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 both ends of the side wall 220 in the height direction; the edge of the shock-absorbing plate 120 close to the corrugated plate 110 abuts against the top of the top wall 210 and is connected to the top wall 210; the edge of the corrugated plate 110 close to the shock-absorbing plate 120 is connected to the side wall 220.

[0059] It can be understood 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 "C"-shaped structure shown. The upper end of the crossbeam 200 is used to support the iron floor structure, and the lower end is supported by the side beam. The crossbeam 200 is provided at the fault of the iron floor structure, that is, at the joint of the shock-absorbing plate 120 and the corrugated plate 110. The shock-absorbing 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 of the side wall 220 away from the top wall 210 and can be fixed by welding.

[0060] like Figure 4 , Figure 5As an optional method, the present application provides a vehicle chassis 10, wherein the hook assembly 300 includes a support plate 310 and a hook member 320, wherein the support plate 310 is connected to the side wall 220, and at least a portion of the structure of the support plate 310 extends below the bottom wall 230; the hook member 320 is connected to a side of the support plate 310 facing the cross beam 200, and a portion of the structure of the hook member 320 extends below the support plate 310.

[0061] It can be understood that the support plate 310 is used to connect the beam 200 and the hook member 320, which can increase the contact area between the hook assembly 300 and the beam 200, so that the hook assembly 300 and the beam 200 are more securely fixed when forming a small assembly, and the strength of the entire assembly is greater.

[0062] As an optional method, the present application provides a vehicle chassis 10, wherein the support plate 310 includes a support body 311 and a bending portion 312, wherein the support body 311 is arranged parallel to the side wall 220 and is in contact with the side wall 220; the bending portion 312 is connected to the lower edge of the support body 311 and extends in a direction away from the cross beam 200 relative to the support body 311; and the hook member 320 extends from the support body 311 toward one side of the cross beam 200 to below the bending portion 312.

[0063] It can be understood that the support body 311 is attached to the side of the side wall 220 away from the top wall 210 and the bottom wall 230, and can be fixed by welding; the hook member 320 is connected to the side of the support body 311 facing the beam 200, and can be fixed by welding; the hook member 320 extends from the side of the support body 311 facing the beam 200 to the bottom of the bending portion 312 to form a hook, and the hook and the bending portion 312 are attached and can be fixed by welding; the hook member 320 and the bottom wall 230 have a contact surface, and the contact surface can be fixed by welding. Through the connection and fixation between the above components, the hook assembly 300 and the beam 200 can form a small assembly with a stable structure.

[0064] As an optional method, the present application provides a vehicle chassis 10, in which 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, which is located on the side of the side wall 220 in the bending direction of the top wall 210 and the bottom wall 230, and 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] It is understandable that the top wall 210 and the bottom wall 230 are bent in the same direction relative to the side wall 220 to increase the structural strength of the beam 200. The thickness of the reinforcing plate of the beam 200 is selected according to whether there is a hoisting device and the weight of the hoisting device to ensure structural strength while limiting weight.

[0066] For example, Figure 2When the cross beam 200 has no hoisting equipment, the thickness of the cross beam 200 can be set to 4mm; when the weight of the cross beam 200 hoisting equipment is less than 800Kg, a reinforcing plate can be set to make the thickness of the cross beam 200 6mm; Figure 3 , Figure 5 When the weight of the lifting equipment of the beam 200 is greater than 800Kg, the beam 200 can be set as a channel steel. The connection between the corrugated plate 110 and the shock-absorbing plate 120 and the beam 200 installed with a hook have a large load-bearing capacity and need to use a channel steel.

[0067] like Figure 6 As an optional method, the present application provides a vehicle chassis 10, wherein the side wall 220 is provided with a plurality of weight-reducing holes 240, and the plurality of weight-reducing holes 240 are arranged at intervals along the length direction of the cross beam 200.

[0068] Optionally, the weight-reducing holes 240 may be circular, rectangular, triangular, elliptical, etc., and the number depends on the situation. They may 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 five oblong weight-reducing holes 240 that are evenly spaced; when the crossbeam 200 has lifting equipment, its side wall 220 can be provided with five oblong weight-reducing holes 240 with different spacings and sizes, and the unopened positions are used for welding accessories such as hook assemblies.

[0070] like Figure 7 As an optional method, a vehicle chassis 10 provided in the present application also includes a limit member 420, a pipeline 410 and a connecting bracket, the pipeline 410 is arranged below the shock absorbing plate 120, the limit member 420 has a limit groove 430, and the extension direction of the limit groove 430 is consistent with the extension direction of the pipeline 410; the connecting bracket is connected to the pipeline 410, and at least two fasteners are connected to the connecting bracket, and the at least two fasteners are arranged at intervals along the extension direction of the pipeline 410, and the fasteners are all inserted in the limit groove 430.

[0071] It is understandable that the chassis accessories 400 such as the pipes 410 and pipelines may shake, swing or deviate when the vehicle is running, and may wear and collide if not fixed. The pipe 410 can be fixed by the limit groove 430 and the connecting bracket. The connecting bracket includes at least two fasteners, which can be bolts. At least two fasteners are arranged along the length direction of the pipe 410, and the pipe 410 can be fixed in a straight line. The limiter 420 is installed under the iron floor. The extension direction of the limit groove 430 is consistent with the extension direction of the pipe 410, and at least two fasteners can be inserted into one limit groove 430 at the same time. In this way, the pipe 410 can be fixed and the number of limiters 420 can be reduced to achieve a lightweight effect.

[0072] Optionally, the limiting groove 430 may be a C-shaped groove, and the connecting bracket is connected to the pipeline 410 via a clamp and bolts, and is connected to the C-shaped groove via bolts.

[0073] Among them, the pipeline can also be fixed by a C-shaped groove. The C-shaped groove is arranged along the extension direction of the pipeline. The spacing of the C-shaped grooves for fixing the pipeline is controlled to be 300mm, so that the pipeline can be effectively fixed, and the number of C-shaped grooves is minimized to achieve the lightweight effect of the vehicle.

[0074] like Figure 8 to Figure 1 3. As an optional method, the present application provides a vehicle chassis 10, wherein the floor assembly 100 further includes a floor member 130, a floor beam 140, a first rubber member 150 and a first connecting member 160, wherein the floor member 130 is disposed above the corrugated plate 110 and the shock-absorbing plate 120; and the floor beam 140 is disposed between the floor member 130 and the corrugated plate 110 and the shock-absorbing plate 120.

[0075] The first rubber member 150 is connected to the upper surface of the shock absorbing plate 120, the floor beam 140 is connected to the top of the first rubber member 150, and the upper surface of the floor beam 140 is connected to the floor member 130; the first rubber member 150 has a first mounting hole 151, the first mounting hole 151 penetrates the first rubber member 150 in a direction perpendicular to the floor beam 140, the first connecting member 160 is penetrated in the first mounting hole 151, and both ends of the first connecting member 160 are fixedly connected to the shock absorbing plate 120.

[0076] The floor beam 140 is used to support the floor member 130, and the first rubber member 150 and the first connecting member 160 are used to connect the damping plate 120 and the floor member 130. The floor beam 140 and the floor member 130 can be connected by a cross recessed countersunk self-tapping screw 152, and a damping pad 153 is provided between the floor beam 140 and the floor member 130; the floor beam 140 and the first rubber member 150 can be connected by a hexagonal nut 154 and a hexagonal bolt 155, and a large washer 156 and a flat washer 157 are provided between the hexagonal nut 154 and the first rubber member 150, and the hexagonal bolt 155 is partially buried in the first rubber member 150 and is provided with a washer 158 to prevent it from falling off; the first connecting member 160 is connected to the damping plate 120 by a closed flat round head blind rivet 161. By connecting the above components, a plurality of first rubber members 150 and first connecting members 160 are arranged in the region of the damping plate 120, and the floor member 130 can be fixed to the damping plate 120. In this solution, the rubber members are used to replace the commonly used floor brackets, which can achieve a lightweight effect.

[0077] As an optional manner, the vehicle chassis 10 provided in the present application, wherein the floor assembly 100 further includes a second rubber member 170 and a second connecting member 180 .

[0078] The second rubber member 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 member 170 matches the contour shape of the corrugated groove; the floor beam 140 is connected to the top end of the second rubber member 170; the second rubber member 170 has a second mounting hole 181, the second mounting hole 181 penetrates the second rubber member 170 along the extension direction of the corrugated groove, the second connecting member 180 is penetrated by the second mounting hole 181, and both ends of the second connecting member 180 are fixedly connected to the corrugated plate 110.

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

[0080] Optionally, the first rubber member 150 and the second rubber member 170 may be made of EPDM rubber, the first connecting member 160 and the second connecting member 180 may be made of hot-rolled steel plates, and the gasket 158 ​​may be made of hot-rolled steel plates. The model of the hot-rolled steel plates may be selected according to strength requirements.

[0081] The present application provides a vehicle, comprising the above-mentioned vehicle underframe 10 .

[0082] It can be understood that the vehicle underframe 10 provided in the present application is used for a vehicle, which may be a rail vehicle such as a subway vehicle or a train vehicle, and can reduce the weight of the vehicle.

[0083] The present application provides a vehicle chassis 10 and a vehicle, wherein 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, which are arranged along the length direction of the vehicle chassis 10, and the corrugated plate 110 and the shock-absorbing plate 120 cover different areas; the longitudinal beam 500 is supported below the floor assembly 100 along the length direction 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 chassis 10, and the plurality of crossbeams 200 are arranged at intervals along the length direction of the vehicle chassis 10; the corrugated plate 110 and the shock-absorbing plate 120 are connected by the crossbeams 200; and a hook assembly 300 is connected to at least one crossbeam 200. The vehicle chassis 10 provided in the present application is lightweight and 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 the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A vehicle underframe (10), characterized in that: The vehicle underframe (10) comprises a floor assembly (100), a crossbeam assembly, a longitudinal beam (500) and a hook assembly (300); the floor assembly (100) comprises a corrugated plate (110) and a shock-absorbing plate (120), the corrugated plate (110) and the shock-absorbing plate (120) being arranged along the length direction of the vehicle underframe (10), and the corrugated plate (110) and the shock-absorbing plate (120) covering different areas; the longitudinal beam (500) is supported below the floor assembly (100) along the length direction of the vehicle underframe (10); The crossbeam assembly comprises a plurality of crossbeams (200), the plurality of crossbeams (200) being supported below the floor assembly (100) along the width direction of the vehicle underframe (10), and the plurality of crossbeams (200) being arranged at intervals along the length direction of the vehicle underframe (10); the corrugated plate (110) and the shock absorbing plate (120) being connected via the crossbeams (200); The hook assembly (300) is connected to at least one of the crossbeams (200).

2. The vehicle underframe (10) according to claim 1, characterized in that: The crossbeam (200) comprises 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 both ends of the side wall (220) in a height direction; the edge of the damping plate (120) close to the corrugated plate (110) abuts against the top of the top wall (210) and is connected to the top wall (210); the edge of the corrugated plate (110) close to the damping plate (120) is connected to the side wall (220).

3. The vehicle underframe (10) according to claim 2, characterized in that: The hook assembly (300) comprises a support plate (310) and a hook member (320), wherein the support plate (310) is connected to the side wall (220), and at least a portion of the structure of the support plate (310) extends below the bottom wall (230); the hook member (320) is connected to a side of the support plate (310) facing the crossbeam (200), and a portion of the structure of the hook member (320) extends below the support plate (310).

4. The vehicle underframe (10) according to claim 3, characterized in that: The support plate (310) comprises a support body (311) and a bent portion (312); the support body (311) is arranged parallel to the side wall (220) and is in contact with the side wall (220); the bent portion (312) is connected to the lower edge of the support body (311) and extends in a direction away from the crossbeam (200) relative to the support body (311); the hook member (320) extends from the support body (311) toward one side of the crossbeam (200) to below the bent portion (312).

5. The vehicle underframe (10) according to claim 2, 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) further comprises a reinforcing plate, the reinforcing plate being located on a side of the side wall (220) in a bending direction toward the top wall (210) and the bottom wall (230), the upper edge of the reinforcing plate being welded to the lower surface of the top wall (210), and the lower edge of the reinforcing plate being welded to the upper surface of the bottom wall (230).

6. The vehicle underframe (10) according to claim 2, characterized in that: The side wall (220) is provided with a plurality of weight-reducing holes (240), and the plurality of weight-reducing holes (240) are arranged at intervals along the length direction of the crossbeam (200).

7. The vehicle underframe (10) according to any one of claims 1 to 6, characterized in that: The invention also comprises a limiter (420), a pipeline (410) and a connecting bracket, wherein the pipeline (410) is arranged below the damping plate (120), the limiter (420) has a limiter groove (430), and the extension direction of the limiter groove (430) is consistent with the extension direction of the pipeline (410); the connecting bracket is connected to the pipeline (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 pipeline (410), and the fasteners are all inserted into the limiter groove (430).

8. The vehicle underframe (10) according to any one of claims 1 to 6, characterized in that: The floor assembly (100) further comprises a floor member (130), a floor beam (140), a first rubber member (150) and a first connecting member (160); the floor member (130) is arranged above the corrugated plate (110) and the shock absorbing plate (120); the floor beam (140) is arranged between the floor member (130) and the corrugated plate (110) and the shock absorbing plate (120); The first rubber member (150) is connected to the upper surface of the shock absorbing plate (120), the floor beam (140) is connected to the top of the first rubber member (150), and the upper surface of the floor beam (140) is connected to the floor member (130); the first rubber member (150) has a first mounting hole (151), the first mounting hole (151) penetrates the first rubber member (150) in a direction perpendicular to the floor beam (140), the first connecting member (160) is inserted into the first mounting hole (151), and both ends of the first connecting member (160) are fixedly connected to the shock absorbing plate (120).

9. The vehicle underframe (10) according to claim 8, characterized in that: The floor assembly (100) further comprises a second rubber member (170) and a second connecting member (180); The second rubber member (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 member (170) matches the contour shape of the corrugated groove; the floor beam (140) is connected to the top end of the second rubber member (170); the second rubber member (170) has a second mounting hole (181), the second mounting hole (181) penetrates the second rubber member (170) along the extension direction of the corrugated groove, the second connecting member (180) is inserted into the second mounting hole (181), and both ends of the second connecting member (180) are fixedly connected to the corrugated plate (110).

10. A vehicle, characterized in that: The vehicle comprises a vehicle underframe (10) as claimed in any one of claims 1 to 9.

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