Vehicle undercarriage and vehicle

Abstract

The application relates to the field of railway vehicles, in particular to a vehicle underframe and a vehicle. The vehicle underframe provided by the application comprises a floor, the floor comprising a floor body and a side beam, the side beam being arranged on both sides of the floor body in the width direction; the bottom of the floor body is provided with a plurality of integrally-formed hoisting grooves, the plurality of hoisting grooves being arranged in the width direction of the floor body; and at least two hoisting grooves are adjacently arranged to form a first hoisting part, so as to hoist the same external equipment. The vehicle underframe provided by the application hoists the external equipment through the first hoisting part, does not need to arrange a hoisting rib plate on the side beam, improves the hoisting strength, and has a light-weight 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, playing a basic supporting role. Located at the bottom of the vehicle body, the vehicle chassis directly bears the load of the vehicle body, lifting equipment, and dynamic stress during operation. Its design must meet the requirements of high strength, lightweight, and fatigue resistance.

[0003] In related technologies, the vehicle chassis needs to hoist various equipment. Small equipment is hoisted below the chassis floor through a hoisting slot, while large equipment is hoisted on the hoisting stiffeners that protrude from the inside of the side beam.

[0004] However, hoisting large equipment on the side beams can easily lead to breakage of the hoisting stiffeners, and the side beams are also quite heavy. Utility Model Content

[0005] This application provides a vehicle chassis and vehicle to solve the technical problems that currently, the hoisting of large equipment for side beams is prone to breakage of hoisting stiffeners, and the side beams are heavy.

[0006] In a first aspect, this application provides a vehicle chassis, the vehicle chassis including a floor, the floor including a floor body and side beams, the side beams being disposed on both sides of the floor body in the width direction;

[0007] The bottom of the floor body is provided with multiple integrally formed lifting slots, which are arranged along the width direction of the floor body; at least two lifting slots are arranged adjacently to form a first lifting part for lifting the same external equipment.

[0008] As an alternative implementation, multiple mounting slots are arranged parallel to each other and all extend along the length of the floor.

[0009] As an optional implementation, there are at least two first lifting sections, which are respectively located near the side beam; at least some of the other lifting slots form second lifting sections, which are located between the at least two first lifting sections.

[0010] As an optional implementation, the floor body includes a first profile, a second profile, and a third profile, which are arranged at intervals along the width direction of the floor body;

[0011] The first profile, the second profile, and the third profile all include a top plate, a bottom plate, and multiple stiffening plates, with the two ends of the multiple stiffening plates connected to the top plate and the bottom plate, respectively.

[0012] As an optional implementation, the first lifting part is connected to the lower side of the first profile, and the second lifting part is connected to the lower side of the second profile and / or the third profile;

[0013] The first lifting section has a first reinforcing base plate between the two lifting slots, and a second reinforcing base plate on both sides of the two lifting slots. The first lifting section has a reinforcing rib plate on its upper side. The first reinforcing base plate, the second reinforcing base plate, and the reinforcing rib plate are used to strengthen the structural strength of the first profile.

[0014] As an optional implementation, the hoisting trough includes two guide rail ribs, each guide rail rib having a vertical plate and a bent portion. The two vertical plates are connected to the base plate and arranged parallel to each other, and the two bent portions are arranged opposite to each other with a gap between them.

[0015] As an optional implementation, the vehicle chassis also includes a frame structure, which includes an overlap pad, a back plate, and at least one supporting rib; the overlap pad is connected to the bottom surface of the side beam, the two ends of the back plate are respectively connected to the overlap pad and the floor body, and at least one supporting rib is connected to the overlap pad and the back plate.

[0016] As an optional implementation, the vehicle chassis also includes a chassis front end, which is connected to both ends of the floor in the length direction; the chassis front end includes an end beam, a coupler box side beam and a traction beam, which are connected sequentially along a first direction, and the end beam is connected to the end edge of the floor body in the length direction, and the coupler box side beam and traction beam are connected to the bottom of the floor body.

[0017] As an optional implementation, the front end of the underframe also includes a coupler panel, which is connected to the end of the coupler box side beam away from the end beam; the traction beam is connected to the side of the coupler panel opposite to the coupler box side beam, and the traction beam includes multiple profile structures.

[0018] The coupler panel and the traction beam are each provided with at least one weight reduction hole.

[0019] Secondly, this application provides a vehicle that includes the aforementioned vehicle chassis.

[0020] This application provides a vehicle chassis, which includes a floor, a floor body, and side beams. The side beams are disposed on both sides of the floor body in the width direction. The bottom of the floor body has multiple integrally formed lifting slots, which are arranged along the width direction of the floor body. At least two lifting slots are arranged adjacently to form a first lifting section for lifting the same external equipment. The vehicle chassis provided by this application lifts external equipment through the first lifting section, eliminating the need for lifting stiffeners on the side beams, thus improving lifting strength and achieving a lightweight effect.

[0021] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that the vehicle chassis and vehicle provided by this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of the side structure of a vehicle provided in an embodiment of this application;

[0024] Figure 2 A schematic diagram of the structure of the bottom surface of the vehicle provided in an embodiment of this application;

[0025] Figure 3 A cross-sectional schematic diagram of the floor provided in an embodiment of this application;

[0026] Figure 4 for Figure 3 A magnified view of the Y-section in the middle;

[0027] Figure 5 for Figure 3 A magnified view of part M in the middle;

[0028] Figure 6 This is a schematic cross-sectional view of the edge beam provided in an embodiment of this application;

[0029] Figure 7 A front view of the front end of the chassis provided in an embodiment of this application;

[0030] Figure 8 A side view of the front end of the chassis provided in an embodiment of this application;

[0031] Figure 9 for Figure 8 A magnified view of part F in the middle;

[0032] Figure 10 A top view of the front end of the chassis provided in an embodiment of this application;

[0033] Figure 11 This is a schematic diagram of the structure of the coupler panel provided in an embodiment of this application;

[0034] Figure 12 A bottom view of the front end of the chassis provided in an embodiment of this application;

[0035] Figure 13 This is a schematic diagram of the traction beam provided in an embodiment of this application;

[0036] Figure 14 A cross-sectional view of the vehicle provided in an embodiment of this application;

[0037] Figure 15 for Figure 14 A magnified view of part N in the middle;

[0038] Figure 16 This is a schematic diagram of the vehicle frame structure provided in the embodiments of this application;

[0039] Figure 17 A first view of the vehicle frame structure provided in an embodiment of this application;

[0040] Figure 18 A second view of the vehicle frame structure provided in an embodiment of this application;

[0041] Figure 19 A third view of the vehicle frame structure provided in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 10 - Vehicle chassis;

[0044] 100 - Floor; 110 - Floor body; 111 - First hoisting section; 112 - Second hoisting section; 113 - Hoisting slot; 1131 - Guide rail stiffener; 1131a - Vertical plate; 1131b - Bending section; 114 - First profile; 115 - Second profile; 116 - Third profile; 117 - Top plate; 118 - Bottom plate; 1181 - First reinforced bottom plate; 1182 - Second reinforced bottom plate; 119 - Stiffener; 1191 - Reinforcing stiffener; 120 - Edge beam;

[0045] 200 - Chassis structure; 210 - Overlapping pad; 220 - Back plate; 230 - Supporting ribs;

[0046] 300 - Front end of the underframe; 310 - End beam; 320 - Side beam of the coupler box; 330 - Coupler panel; 331 - Connecting joint; 340 - Traction beam; 350 - Weight reduction hole. Detailed Implementation

[0047] 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.

[0048] 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.

[0049] 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 in orders other than those illustrated or described herein.

[0050] 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.

[0051] 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.

[0052] The vehicle chassis is the main structural frame at the bottom of the vehicle, playing a basic supporting role. Located at the bottom of the vehicle body, the vehicle chassis directly bears the load of the vehicle body, lifting equipment, and dynamic stress during operation. Its design must meet the requirements of high strength, lightweight, and fatigue resistance.

[0053] In related technologies, vehicle chassis need to support various types of equipment. Typically, small equipment is hoisted below the chassis floor via hoisting slots, while large equipment is hoisted onto hoisting stiffeners extending from the inner side beams.

[0054] However, during long-term vehicle operation, cracks are prone to form at the base of the suspended hoisting stiffeners on the side beams, leading to quality accidents such as equipment falling. Furthermore, the side beams are wide and heavy due to the need to hoist large equipment.

[0055] To solve the above-mentioned technical problems, this application provides a vehicle chassis and a vehicle. The vehicle chassis lifts large equipment through the first lifting part at the bottom of the floor body, eliminating the need for side beams to set lifting stiffeners, resulting in higher structural strength, preventing quality accidents such as equipment falling, and also achieving a lightweight effect.

[0056] Figure 1 A schematic diagram of the side structure of a vehicle provided in an embodiment of this application; Figure 2 A schematic diagram of the structure of the bottom surface of the vehicle provided in an embodiment of this application; Figure 3 A cross-sectional schematic diagram of the floor provided in an embodiment of this application; Figure 4 for Figure 3 A magnified view of the Y-section in the middle; Figure 5 for Figure 3 A magnified view of part M in the middle; Figure 6 This is a schematic cross-sectional view of the side beam provided in an embodiment of this application.

[0057] Reference Figures 1 to 6 This application provides a vehicle chassis 10, which includes a floor 100. The floor 100 includes a floor body 110 and side beams 120. The side beams 120 are disposed on both sides of the floor body 110 in the width direction. The bottom of the floor body 110 is provided with a plurality of integrally formed lifting slots 113, which are arranged along the width direction of the floor body 110. At least two lifting slots 113 are arranged adjacently to form a first lifting part 111 for lifting the same external equipment.

[0058] It is understood that the first hoisting part 111 includes at least two hoisting slots 113, and the at least two hoisting slots 113 can hoist the same large equipment, which improves the hoisting strength. The first hoisting part 111 can directly transfer the hoisting stress to the floor body 110. The side beam 120 is an extruded profile structure with high strength. Since no hoisting equipment is required, the side beam 120 can eliminate the cantilever plate for installing large equipment and the cavity for installing the hoisting equipment slider, and can shorten the width to achieve a lightweight effect.

[0059] For example, the width of the side beam 120 can be shortened to 127mm, leaving more space for equipment under the floor body 110; the longitudinal height of the side beam 120 can be increased to ensure the rigidity and static strength of the vehicle body and improve the vehicle body mode; the side of the side beam 120 can have an interface for installing movable skirts to prevent the movable skirts from being installed on the lower surface of the side beam 120 beyond the vehicle clearance.

[0060] As one possible implementation, the first lifting section 111 includes two lifting slots 113, both of which extend along the length of the floor body 110.

[0061] It should be noted that the two lifting slots 113 and the floor body 110 can be integrally formed, reducing installation and welding processes. The two lifting slots 113 can be arranged adjacently and parallel to each other, extending along the length of the floor body 110. Large equipment can be equipped with double sliders that match the cross-sectional shape of the lifting slots 113, and the spacing between the double sliders is consistent with the spacing between the two lifting slots 113. During installation, installation can be completed simply by sliding the sliders into the lifting slots 113, making assembly and disassembly convenient. Since the two lifting slots 113 extend along the length of the floor 100, when lifting equipment, the two lifting slots 113 can transfer the lifting stress to the floor body 110, improving the lifting strength. The ratio of the length of the lifting slot 113 to the length of the floor body 110 can be 1%-100%, and this embodiment does not impose a specific limitation.

[0062] For example, the lifting slot 113 can be a C-shaped slot. The interior of the C-shaped slot can be designed to have a space of 26×33mm to facilitate the passage of the equipment's slider. The center distance between the two C-shaped slots can be 75mm. The double lifting slot 113 improves the lifting strength on the one hand and prevents the equipment from shaking after being lifted on the other hand.

[0063] As one possible implementation, there are at least two first lifting sections 111, which are respectively located near the side beam 120; at least some of the other lifting slots 113 form a second lifting section 112, which is located between the at least two first lifting sections 111.

[0064] As one possible implementation, the floor body 110 includes a first profile 114, a second profile 115, and a third profile 116, which are arranged at intervals along the width direction of the floor body 110. Each of the first profile 114, the second profile 115, and the third profile 116 includes a top plate 117, a bottom plate 118, and a plurality of stiffening plates 119, with the two ends of the plurality of stiffening plates 119 connected to the top plate 117 and the bottom plate 118, respectively.

[0065] In one possible implementation, the first lifting part 111 is connected to the lower side of the first profile 114, and the second lifting part 112 is connected to the lower side of the second profile 115 and / or the third profile 116; a first reinforcing base plate 1181 is provided between the two lifting slots 113 of the first lifting part 111, and a second reinforcing base plate 1182 is provided on both sides of the two lifting slots 113 of the first lifting part 111; a reinforcing rib plate 1191 is provided on the upper side of the first lifting part 111; the first reinforcing base plate 1181, the second reinforcing base plate 100 and the reinforcing rib plate 1191 are used to strengthen the structural strength of the first profile 114.

[0066] It should be noted that the first profile 114, the second profile 115, and the third profile 116 all extend along the length of the floor body 110. The floor body 110 is formed by splicing multiple sections of the first profile 114, the second profile 115, and the third profile 116 along the width of the floor body 110. Multiple stiffening plates 119, together with the top plate 117 and the bottom plate 118, form multiple triangular support structures, which improve the structural strength of the floor body 110. The second profile 115 and the third profile 116 may each have multiple second lifting parts 112 at their lower parts, or multiple second lifting parts 112 may only be provided at the lower parts of the second profile 115 or the third profile 116. Each second lifting part 112 includes only one lifting slot 113.

[0067] The lifting slot 113 of the second lifting section 112 can be a C-shaped slot. The internal space of the C-shaped slot can be designed to be 26×33mm, which is convenient for lifting small equipment. The small equipment is also installed in the lifting slot 113 by a slider.

[0068] For example, along the width direction of the floor body 110, the third profile 116 is located in the middle of the floor body 110, the two second profiles 115 are located on both sides of the third profile 116, the two first profiles 114 are located on the outer sides of the two second profiles 115 respectively, and the two first profiles 114 are connected to the side beams 120 on both sides of the floor body 110 respectively. The floor body 110 is composed of five profiles spliced ​​together. The lower parts of the two first profiles 114 are respectively provided with a first lifting part 111, and the distance between the two first lifting parts 111 is 2477mm; the lower parts of the two second profiles 115 are respectively provided with a second lifting part 112, and the distance between the two second lifting parts 112 of the two second profiles 115 is 1493mm; the lower part of the third profile 116 is provided with two second lifting parts 112, and the distance between the two second lifting parts 112 of the third profile 116 is 450mm; the lifting groove 113 can be a C-shaped groove, and the internal space of the C-shaped groove can be designed to be 26×33mm, which is convenient for lifting external equipment. External equipment of different weights can be installed in the lifting groove 113 by means of a slider.

[0069] Understandably, the first hoisting part 111 is located at the lower part of the first profile 114. To ensure structural strength, the first profile 114 is provided with a first reinforcing base plate 1181, a second reinforcing floor 100, and a reinforcing rib plate 1191 to ensure that large equipment will not fall off due to breakage of the first profile 114 during hoisting.

[0070] For example, the thickness of the first reinforcing base plate 1181 between the two lifting slots 113 of the first lifting part 111 is designed to be 4.5mm, the thickness of the second reinforcing base plate 1182 on both sides of the two lifting slots 113 of the first lifting part 111 is designed to be 4mm, the thickness of the reinforcing rib 1191 is 3mm, the thickness of the top and bottom plates 118 at other locations is 2.8mm, and the thickness of the rib 119 at other locations is 2.5mm. With this configuration, reinforcing plates are used at the lifting locations of large equipment, while thinner plates are used at other locations, achieving a lightweight effect while ensuring lifting strength.

[0071] As one possible implementation, the hoisting trough 113 includes two guide rail stiffeners 1131. Each guide rail stiffener 1131 has a vertical plate 1131a and a bent portion 1131b. The two vertical plates 1131a are connected to the base plate 118 and are arranged parallel to each other. The two bent portions 1131b are arranged opposite to each other and there is a gap between the two bent portions 1131b.

[0072] Understandably, the two guide rail ribs 1131 of the hoisting groove 113 extend along the length of the floor body 110 and form a hollow groove with an opening with the bottom plate 118. The opening of the hollow groove faces downward and is used for the connection between the hoisting equipment and the slider on the hoisting equipment.

[0073] Figure 7 A front view of the front end of the chassis provided in an embodiment of this application; Figure 8 A side view of the front end of the chassis provided in an embodiment of this application; Figure 9 for Figure 8 A magnified view of part F in the middle; Figure 10 A top view of the front end of the chassis provided in an embodiment of this application; Figure 11 This is a schematic diagram of the structure of the coupler panel provided in an embodiment of this application; Figure 12 A bottom view of the front end of the chassis provided in an embodiment of this application; Figure 13 This is a schematic diagram of the traction beam provided in an embodiment of this application.

[0074] Reference Figures 7 to 13As one possible implementation, the vehicle chassis 10 also includes a frame structure 200, which includes an overlap pad 210, a back plate 220, and at least one support rib 230. The overlap pad 210 is connected to the bottom surface of the side beam 120, and the two ends of the back plate 220 are respectively connected to the overlap pad 210 and the floor body 110. At least one support rib 230 is connected to the overlap pad 210 and the back plate 220.

[0075] It should be noted that the lap plate 210 is used to overlap the bottom surface of the side beam 120, and the back plate 220 is designed to cross-join and welded to the side beam 120 and the floor body 110. At the same time, the support ribs 230 are welded to the back plate 220 and the lap plate 210, so as to transfer the stress on the lap plate 210 to the floor body 110, or to transfer the hoisting stress of large equipment on the floor body 110 to the side beam 120 to further disperse the hoisting stress. The height of the back plate 220 and the ribs can also be adjusted according to the height of the bottom surface of the side beam 120 from the floor 100. It has strong versatility. Multiple truss structures 200 can be set along the length of the side beam 120 to improve the structural strength of the entire floor 100. The truss structure 200 has a lightweight effect while ensuring the force transmission function.

[0076] For example, the lap pad 210 is made of 5083 aluminum, and its thickness has been optimized from 40mm to 20mm to achieve weight reduction. The lap pad 210 does not have high requirements for the cross-sectional dimensions of the bottom surface of the side beam 120, and its dimensions can be adjusted arbitrarily according to the cross-section of the lap structure. It is only necessary to pay attention to the reserved dimensions for connection with the back plate 220. The bottom of the lap pad 210 is designed with cross-shaped diagonal lines on the contact surface with the vehicle-mounting equipment, which provides more friction than the original pad's horizontal lines. An 8×55-degree bevel is added to the end that is in close contact with the outside of the side beam 120, which facilitates welding and ensures welding strength. The back plate 220 is made of 5083 aluminum plate with a thickness of 8mm, and has 3×55-degree bevels on both sides of the top. The HY-type bevel is used for double-sided connection with the lap pad 210. The vertical dimensions are 300×245mm, which increases the contact area with the side beam 120. Z3 welds are welded to the side beam 120 on both sides. The bend at the connection with the floor 100 is treated to avoid interference with the welds of the floor 100 and the side beam 120 during assembly. The main function of the back plate 220 is to connect and fix the side beam 120 and the floor body 110. The support ribs 230 are made of aluminum plate 5083 with a thickness of 8mm and there are 3 of them. The upper part of the support ribs 230 is connected to the lap pad 210, and the back and lower part are connected to the back plate 220. Their main function is to support and transmit force.

[0077] Figure 14 A cross-sectional view of the vehicle provided in an embodiment of this application; Figure 15 for Figure 14 A magnified view of part N in the middle; Figure 16This is a schematic diagram of the vehicle frame structure provided in the embodiments of this application; Figure 17 A first view of the vehicle frame structure provided in an embodiment of this application; Figure 18 A second view of the vehicle frame structure provided in an embodiment of this application; Figure 19 A third view of the vehicle frame structure provided in an embodiment of this application.

[0078] Reference Figures 14 to 19 As one possible implementation, the vehicle chassis 10 also includes a chassis front end 300, which is connected to both ends of the floor 100 along its length. The chassis front end 300 includes an end beam 310, a coupler box side beam 320, and a traction beam 340. The end beam 310, the coupler box side beam 320, and the traction beam 340 are connected sequentially along a first direction. The end beam 310 is connected to the end edge of the floor body 110 along its length, and the coupler box side beam 320 and the traction beam 340 are connected to the bottom of the floor body 110.

[0079] It should be noted that the first direction is the direction from both ends of the vehicle underframe 10 along its length towards the middle; there are two side beams 320 for the coupler box, which are set on both sides of the coupler box.

[0080] As one possible implementation, the underframe front end 300 also includes a coupler panel 330, which is connected to the end of the coupler box side beam 320 away from the end beam 310; the traction beam 340 is connected to the side of the coupler panel 330 away from the coupler box side beam 320, and the traction beam 340 includes at least one profile structure; the coupler panel 330 and the traction beam 340 are each provided with at least one weight reduction hole 350.

[0081] Understandably, the front end 300 of the underframe is an important component of the vehicle underframe 10. It is usually used for coupler installation, to transmit longitudinal forces of the vehicle body, and to withstand tensile and compressive loads. This application eliminates the base plate 118 and connecting plate in the front end 300 of the underframe, avoiding the aluminum plate splicing structure. The end beam 310 and the coupler box side beam 320 both adopt open profile structures. Compared with the plate splicing structure, this increases the strength of the front end and prevents excessive deformation during welding, which would reduce the flatness of the end and affect the installation of the end windshield. The coupler panel 330 adopts a single profile instead of a welded structure, which improves the flatness of the coupler mounting surface, increases the tensile and compressive strength of the coupler, and increases the stability of the coupler panel 330. Symmetrical weight-reducing holes 350 are machined on the left and right sides of the coupler mounting surface to reduce weight. At the same time, the coupler panel 330 is an extruded profile with connecting joints 331 on both the top and bottom. It is connected to the upper and lower cover plates and the coupler box base plate 118 through the joints, avoiding the poor joint form of welding between thin and thick plates and improving the fatigue resistance of the structure. The coupler side beam and coupler traction beam 340 are equipped with waste bin interfaces on both sides for installing waste bins. The traction beam 340 can be connected to the sleeper beam or welded directly to the floor 100 without connecting to the sleeper beam, which is beneficial for force transmission. The traction beam 340 is machined with weight reduction holes 350 on both sides to reduce the weight of the end base frame. The lower and side parts can be welded with accessories to provide more installation interfaces for subsequent processes.

[0082] For example, the traction beam 340 may include three profile structures. The three profile structures are arranged at intervals along the width direction of the vehicle body, and their ends are all connected to the coupler panel 330. Each profile is a square hollow structure, and multiple weight-reducing holes 350 are arranged at intervals along the length direction of the profile. The weight-reducing holes 350 penetrate the upper and lower surfaces of the square hollow structure, thereby achieving a lightweight effect.

[0083] This application also provides a vehicle in which the aforementioned vehicle chassis 10 can be applied, thereby improving the lifting strength of the vehicle and achieving a lightweight effect.

[0084] This application provides a vehicle chassis 10, which includes a floor 100. The floor 100 includes a floor body 110 and side beams 120. The side beams 120 are disposed on both sides of the floor body 110 in the width direction. The bottom of the floor body 110 is provided with a plurality of integrally formed lifting slots 113, which are arranged along the width direction of the floor body 110. At least two lifting slots 113 are arranged adjacently to form a first lifting section 111 for lifting the same external equipment. The vehicle chassis 10 provided by this application lifts external equipment through the first lifting section 111, eliminating the need for lifting stiffeners on the side beams 120, thus improving lifting strength and achieving a lightweight effect.

[0085] 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, characterized in that, The vehicle chassis (10) includes a floor (100), the floor (100) includes a floor body (110) and side beams (120), the side beams (120) are disposed on both sides of the floor body (110) in the width direction; The bottom of the floor body (110) is provided with a plurality of integrally formed lifting slots (113), and the plurality of lifting slots (113) are arranged along the width direction of the floor body (110); at least two of the lifting slots (113) are arranged adjacently to form a first lifting part (111) for lifting the same external equipment.

2. The vehicle chassis according to claim 1, characterized in that, The plurality of the lifting slots (113) are arranged in parallel to each other and all extend along the length of the floor (100).

3. The vehicle chassis according to claim 2, characterized in that, There are at least two first hoisting parts (111), and at least two first hoisting parts (111) are respectively disposed close to the side beam (120); at least a portion of the other hoisting slots (113) form a second hoisting part (112), and the second hoisting part (112) is disposed between at least two first hoisting parts (111).

4. The vehicle chassis according to claim 3, characterized in that, The floor body (110) includes a first profile (114), a second profile (115) and a third profile (116), wherein the first profile (114), the second profile (115) and the third profile (116) are arranged at intervals along the width direction of the floor body (110); The first profile (114), the second profile (115) and the third profile (116) each include a top plate (117), a bottom plate (118) and a plurality of stiffeners (119), with the two ends of the plurality of stiffeners (119) respectively connected to the top plate (117) and the bottom plate (118).

5. The vehicle chassis according to claim 4, characterized in that, The first lifting part (111) is connected to the lower side of the first profile (114), and the second lifting part (112) is connected to the lower side of the second profile (115) and / or the third profile (116); The first lifting part (111) has a first reinforcing base plate (1181) between the two lifting slots (113), and a second reinforcing base plate (1182) on both sides of the two lifting slots (113) of the first lifting part (111). The first lifting part (111) has a reinforcing rib plate (1191) on its upper side. The first reinforcing base plate (1181), the second reinforcing base plate (1182) and the reinforcing rib plate (1191) are used to strengthen the structural strength of the first profile (114).

6. The vehicle chassis according to claim 4, characterized in that, The hoisting slot (113) includes two guide rail ribs (1131), each guide rail rib (1131) having a vertical plate (1131a) and a bent portion (1131b). The two vertical plates (1131a) are connected to the base plate (118) and arranged parallel to each other. The two bent portions (1131b) are arranged opposite to each other and there is a gap between the two bent portions (1131b).

7. The vehicle chassis according to any one of claims 1-6, characterized in that, The vehicle chassis (10) also includes a frame structure (200), which includes an overlap plate (210), a back plate (220), and at least one support rib (230). The overlap plate (210) is connected to the bottom surface of the side beam (120), and the two ends of the back plate (220) are respectively connected to the overlap plate (210) and the floor body (110). The at least one support rib (230) is connected to the overlap plate (210) and the back plate (220).

8. The vehicle chassis according to claim 1, characterized in that, The vehicle chassis (10) also includes a chassis front end (300), which is connected to both ends of the floor (100) in the length direction. The chassis front end (300) includes an end beam (310), a coupler box side beam (320), and a traction beam (340). The end beam (310), the coupler box side beam (320), and the traction beam (340) are connected sequentially along a first direction. The end beam (310) is connected to the end edge of the floor body (110) in the length direction. The coupler box side beam (320) and the traction beam (340) are connected to the bottom of the floor body (110).

9. The vehicle chassis according to claim 8, characterized in that, The front end (300) of the underframe also includes a coupler panel (330), which is connected to the end of the coupler box side beam (320) away from the end beam (310); the traction beam (340) is connected to the side of the coupler panel (330) opposite to the coupler box side beam (320), and the traction beam (340) includes multiple profile structures; The coupler panel (330) and the traction beam (340) are each provided with at least one weight reduction hole (350).

10. A vehicle, characterized in that, The vehicle includes a vehicle chassis (10) as described in any one of claims 1-9.

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