Cross beam assembly, frame and wide-body vehicle

Abstract

The utility model provides a crossbeam assembly, frame and wide-body vehicle, crossbeam assembly includes support plate, be equipped with the top plate of support plate top, be equipped with the bottom plate of support plate bottom and be equipped with the reinforcing plate of top plate and bottom plate respectively in the up-down direction, support plate extends along the left-right direction, the top plate is equipped with the top plate of support plate top, the bottom plate of support plate bottom is equipped with the reinforcing plate of bottom plate, the support plate extends along the left-right direction. The top plate and the bottom plate are connected with each other, the plate surface of the supporting plate is perpendicular to the front-back direction, the reinforcing plate is perpendicular to the supporting plate and is connected to the supporting plate, and the top plate and the bottom plate are both used for being connected with a longitudinal beam. The utility model provides a cross beam assembly, a vehicle frame and a wide-body vehicle, and aims to solve the problems that the cross beam assembly in the middle of the vehicle frame occupies a large space, and stress concentration is prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the frame crossbeam, more specifically, relate to a crossbeam assembly, frame and wide body car. BACKGROUND

[0002] With the development of new energy technology, and the country vigorously promotes the construction of green mine, most of the open coal mine and metal mine is actively developing the work of replacing oil car with electric car. However, this kind of mine area operating vehicle faces the extreme working condition of heavy load uphill, and the energy consumption demand of the whole vehicle increases significantly. This requires the vehicle to be equipped with a larger capacity battery system, and the whole vehicle weight needs to be reduced through lightweight design to improve the endurance. But lightweight design must take into account the structural strength of the parts to ensure the safety and reliability of the vehicle in heavy load and bumpy road conditions.

[0003] At present, in the frame design of such heavy load vehicles, there are many problems to be solved. The middle crossbeam of the frame is mostly box type crossbeam structure, which not only has a large weight of the parts itself, but also is difficult to meet the requirements of reducing the weight of the whole vehicle, and in the welding process, stress concentration phenomenon is easy to occur, which seriously affects the structural strength of the crossbeam. In addition, the existing support beam adopts box type welding structure, the front and rear sealing plates are welded on the upper and lower sealing plates, and the upper and lower sealing plates are fixed on the frame body through bolted connection. This design not only leads to a larger space occupied by the crossbeam, brings great difficulty to the arrangement of other parts, reduces the utilization rate of the frame space, but also makes the overall layout of the vehicle not compact and reasonable.

[0004] Especially prominent is that the mine area road condition is complex, and the crossbeam assembly of the vehicle will bear a large force when driving in heavy load and bumpy road conditions, and then stress concentration phenomenon will occur. This not only causes local deformation of the structure, affects the stability of the vehicle driving, and even causes structural damage in serious cases, greatly threatens the driving safety of the vehicle, shortens the service life of the vehicle, and increases the maintenance cost of the vehicle. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a crossbeam assembly, frame and wide body car, which aims at solving the problem of large space occupied by the crossbeam assembly of the middle part of the frame and easy stress concentration.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of:

[0007] In a first aspect, a cross beam assembly is provided, comprising a support plate, a top plate arranged on the top of the support plate, a bottom plate arranged on the bottom of the support plate, and a reinforcing plate abutting against the top plate and the bottom plate in the up-down direction respectively, the support plate extends in the left-right direction, and the plate surface of the support plate is perpendicular to the front-rear direction, the reinforcing plate is perpendicular to the support plate and is connected to the support plate, and the top plate and the bottom plate are both used to be connected with longitudinal beams.

[0008] In combination with the first aspect, in a possible implementation manner, the bottom of the support plate is provided with a displacement slot, the bottom plate has an upward protruding avoiding portion, the avoiding portion is adapted to the displacement slot and is inserted into the displacement slot.

[0009] In combination with the first aspect, in a possible implementation manner, the top plate and the bottom plate both comprise:

[0010] a main plate body connected to the top or bottom of the support plate; and

[0011] a connecting plate body comprising a fixed area connected to the main plate body and a connecting area used to be connected with longitudinal beams, and the connecting area and the fixed area are arranged at an angle.

[0012] In combination with the first aspect, in a possible implementation manner, the main plate body is provided with a plurality of first connecting holes in the left-right direction, the fixed area is provided with a second connecting hole adapted to the first connecting hole, and a fixing member is inserted into the first connecting hole and the second connecting hole.

[0013] In combination with the first aspect, in a possible implementation manner, the size of the fixed area in the front-rear direction gradually increases from inside to outside, and the size of the connecting area in the front-rear direction is consistent with the outside size of the fixed area.

[0014] The cross beam assembly has the following beneficial effects compared with the prior art: the support plate extends in the left-right direction and the plate surface is perpendicular to the front-rear direction, combined with the reinforcing plate perpendicular to the support plate, a stable three-dimensional support frame is formed, which can effectively disperse stress under heavy load and bumping conditions while ensuring structural strength, and avoid the stress concentration problem at the weld of the traditional box-type cross beam assembly. The top plate and the bottom plate are respectively connected with longitudinal beams, which not only simplifies the assembly process, but also improves the overall rigidity and stability of the frame. In addition, by reasonably arranging the reinforcing plate and the support plate, the use of redundant materials is reduced, the lightweight goal is achieved, and the internal space of the frame is optimized, which is convenient for the arrangement of battery packs and other parts. The overall performance of the frame is significantly improved by optimizing the structure design, and the lightweight and high-strength requirements of the mine electric vehicle are met, the overall structure is compact, high in strength and light in weight, which can significantly improve the endurance, driving safety and service life of the mine electric vehicle, and is suitable for complex and harsh mine working conditions.

[0015] In a second aspect, the utility model provides a kind of vehicle frame, including the beam assembly described above, further comprising the longitudinal beam being arranged at the outer side of the beam assembly, the longitudinal beam is connected to the top plate and the bottom plate.

[0016] In a possible implementation manner of the second aspect, the vehicle frame further includes a connecting bracket connected to the outer side of the longitudinal beam, the connecting bracket is arranged corresponding to the beam assembly, and the connecting bracket includes:

[0017] The connecting mechanism includes a plurality of connecting pieces distributed in the front-rear direction, the connecting pieces are arranged on the outer side of the longitudinal beam, include fixed part and mounting portion distributed from bottom to top, and the mounting portion extends above the longitudinal beam.

[0018] The mounting piece is connected to the inner side of the plurality of mounting portions, and the mounting piece is used to be connected to the vehicle body.

[0019] In a possible implementation manner of the second aspect, the connecting bracket further includes a fixing piece connected to the plurality of fixed parts, and the fixing piece is connected to the outer side of the longitudinal beam.

[0020] In a possible implementation manner of the second aspect, the mounting piece includes mounting area and guide area distributed from bottom to top, and the guide area gradually inclines to the outer side from bottom to top.

[0021] The vehicle frame has the following advantages: compared with the prior art, the beam assembly is adopted, the support plate extends in the left-right direction and the plate surface is perpendicular to the front-rear direction, the reinforcing plate perpendicular to the support plate is combined to form a stable three-dimensional support frame, which can effectively disperse stress under heavy load and bumping conditions while ensuring structural strength, and avoid the stress concentration problem at the weld of the traditional box-type beam assembly. The top plate and the bottom plate are respectively connected to the longitudinal beam, which not only simplifies the assembly process, but also improves the overall rigidity and stability of the vehicle frame. In addition, by reasonably arranging the reinforcing plate and the support plate, the use of redundant materials is reduced, the lightweight goal is achieved, and the internal space of the vehicle frame is optimized, which is convenient for the arrangement of battery pack and other parts. The utility model optimizes the structural design, significantly improves the overall performance of the vehicle frame, and meets the lightweight and high-strength requirements of the mine electric vehicle. The overall structure is compact, high in strength and light in weight, which can significantly improve the endurance, driving safety and service life of the mine electric vehicle, and is suitable for complex and harsh mine working conditions.

[0022] In a third aspect, the utility model provides a kind of wide-body vehicle, including the vehicle frame described above.

[0023] The beneficial effects of the wide-body vehicle provided by this utility model are as follows: Compared with the prior art, the frame design described above, with support plates extending in the left-right direction and the plate surface perpendicular to the front-back direction, combined with reinforcing plates perpendicular to the support plates, forms a stable three-dimensional support frame. This effectively disperses stress under heavy loads and bumpy conditions while ensuring structural strength, avoiding stress concentration problems at the welds of traditional box-type crossbeam assemblies. The top and bottom plates are connected to the longitudinal beams, which not only simplifies the assembly process but also improves the overall rigidity and stability of the frame. In addition, by rationally arranging the reinforcing and support plates, the use of redundant materials is reduced, achieving the goal of lightweighting, while optimizing the internal space of the frame, facilitating the arrangement of the battery pack and other components. This utility model, through optimized structural design, significantly improves the overall performance of the frame and meets the lightweight and high-strength requirements of mining electric vehicles. The overall structure is compact, high-strength, and lightweight, which can significantly improve the range, driving safety, and service life of mining electric vehicles, making it suitable for complex and harsh mining conditions. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of the beam assembly provided in an embodiment of the present utility model;

[0026] Figure 2 This is a partial structural diagram of the vehicle frame provided in an embodiment of the present utility model.

[0027] In the diagram: 1. Top plate; 101. Main body; 102. Connecting plate; 1021. Fixing area; 1022. Connecting area; 2. Support plate; 3. Bottom plate; 301. Clearance section; 4. Reinforcing plate; 5. Fastener; 6. Longitudinal beam; 7. Connecting bracket; 701. Connecting piece; 7011. Fixing part; 7012. Mounting part; 702. Mounting piece; 7021. Mounting area; 7022. Guide area; 703. Fixing piece. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. The directional terms "upper" and "lower" in the claims, description, and accompanying drawings of this utility model correspond to the vertical direction of the vehicle body; the terms "left" and "right" correspond to the horizontal direction of the vehicle body; the terms "front" and "rear" correspond to the front-rear direction of the vehicle body; and the term "inner side" refers to the side of the vehicle body adjacent to the passenger compartment in the horizontal direction, and vice versa. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate the direction or positional relationship based on the direction and positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, not to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly to refer to any connection method in which there is no displacement or relative rotation relationship between the two parties. This includes non-removable fixed connections, detachable fixed connections, integral connections, and fixed connections via other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and variations thereof are intended to mean "including but not limited to."

[0030] Please refer to the following: Figures 1 to 2 The crossbeam assembly, frame, and wide-body vehicle provided by this utility model will now be described. The crossbeam assembly includes a support plate 2, a top plate 1 disposed on the top of the support plate 2, a bottom plate 3 disposed on the bottom of the support plate 2, and a reinforcing plate 4 that abuts against the top plate 1 and the bottom plate 3 respectively in the vertical direction. The support plate 2 extends in the horizontal direction, and the surface of the support plate 2 is perpendicular to the front-rear direction. The reinforcing plate 4 is perpendicular to the support plate 2 and is connected to the support plate 2. Both the top plate 1 and the bottom plate 3 are used to connect with the longitudinal beam 6.

[0031] Compared with existing technologies, the crossbeam assembly provided by this utility model features a support plate 2 that extends in the left-right direction and has its surface perpendicular to the front-back direction. Combined with a reinforcing plate 4 perpendicular to the support plate 2, this forms a stable three-dimensional support frame. This effectively disperses stress under heavy loads and bumpy conditions while ensuring structural strength, avoiding stress concentration problems at weld seams in traditional box-type crossbeam assemblies. The top plate 1 and bottom plate 3 are connected to the longitudinal beams 6, which not only simplifies the assembly process but also improves the overall rigidity and stability of the frame. Furthermore, by rationally arranging the reinforcing plate 4 and support plate 2, the use of redundant materials is reduced, achieving the goal of lightweighting. At the same time, the internal space of the frame is optimized, facilitating the arrangement of the battery pack and other components. Through optimized structural design, this utility model significantly improves the overall performance of the frame and meets the lightweight and high-strength requirements of mining electric vehicles. The overall structure is compact, high-strength, and lightweight, significantly improving the range, driving safety, and service life of mining electric vehicles, making it suitable for complex and harsh mining conditions.

[0032] In some embodiments, please refer to Figure 1 The bottom of the support plate 2 is provided with a clearance groove, and the bottom plate 3 has an upward protruding clearance part 301, which is adapted to the clearance groove and inserted into the clearance groove.

[0033] This embodiment achieves a precise interlocking fit by creating a clearance groove at the bottom of the support plate 2 and an upwardly protruding clearance portion 301 on the base plate 3, further enhancing structural stability and assembly efficiency. The fitting interlocking of the clearance portion 301 with the clearance groove not only strengthens the connection between the base plate 3 and the support plate 2 but also effectively limits relative displacement, preventing loosening or deformation under heavy loads or bumpy conditions. Because the clearance portion 301 of the base plate 3 protrudes upwards, more space is available below it to accommodate vehicle components, achieving a more rational vehicle layout. Simultaneously, this interlocking design optimizes the load transfer path, resulting in a more uniform stress distribution and avoiding localized stress concentration, thereby extending the service life of the crossbeam assembly. Furthermore, while ensuring connection reliability, this structure reduces the number of additional components required for traditional welding or bolted connections, further reducing overall weight and meeting lightweight design requirements. It also simplifies manufacturing and assembly processes, improving production efficiency.

[0034] Optionally, the clearance groove is located in the middle of the support plate 2 in the left-right direction, and the reinforcing plate 4 is connected to the clearance part 301. The clearance groove is located near the neutral axis of the support plate 2, which can more effectively distribute the load from the longitudinal beam 6, avoid local stress concentration, and significantly improve the overall bending and torsional resistance of the crossbeam. The direct connection between the reinforcing plate 4 and the clearance part 301 forms a continuous force transmission path, which enhances the support stiffness of key parts and is particularly suitable for high-load conditions of mining vehicles under heavy loads on uphill or bumpy roads. At the same time, this structural design makes reasonable use of the space in the middle of the support plate 2, achieves optimized material distribution while ensuring strength, further reduces the weight of components, and does not affect the arrangement space of other components inside the frame.

[0035] In some embodiments, please refer to Figure 1 Both the top plate 1 and the bottom plate 3 include a main plate body 101 and a connecting plate body 102. The main plate body 101 is connected to the top or bottom of the support plate 2. The connecting plate body 102 includes a fixing area 1021 connected to the main plate body 101 and a connecting area 1022 for connecting with the longitudinal beam 6. The connecting area 1022 and the fixing area 1021 are arranged at an angle.

[0036] The main body 101 is directly connected to the support plate 2, forming the main load-bearing frame. The connecting plate 102 achieves a stable multi-angle connection with the longitudinal beam 6 through the fixed area 1021 and the connecting area 1022, which are set at an angle. The angled connection structure can not only more rationally distribute the complex load from the longitudinal beam 6, especially the multi-directional stress generated when the vehicle turns or bumps, effectively reducing the stress concentration at the connection point; at the same time, the independent design of the connecting area 1022 can be adapted to the longitudinal beam 6 structure of different vehicle models, improving the versatility and assembly flexibility of the crossbeam assembly. In addition, while ensuring the connection strength, this structure further reduces the overall weight by optimizing the plate distribution without sacrificing structural rigidity. This modular design not only improves the reliability of the crossbeam assembly under heavy-duty mining conditions, but also simplifies the manufacturing process, which is conducive to standardized mass production.

[0037] Optionally, the connecting plate 102 and the main plate 101 can be welded, glued, snapped or screwed together.

[0038] Optionally, the main board 101 and / or the connecting board 102 are connected to the support plate 2.

[0039] Optionally, the main board 101 and the connecting board 102 are integrated components.

[0040] Optionally, the connecting plate 102 is mounted on the side of the main plate 101 away from the support plate 2, thereby increasing the contact area between the connecting plate 102 and the main plate 101.

[0041] In some embodiments, please refer to Figure 1The main body 101 has multiple first connection holes along the left and right direction, and the fixing area 1021 has a second connection hole adapted to the first connection holes. Fixing members 5 are inserted into the first connection holes and the second connection holes.

[0042] The crossbeam assembly achieves modular, high-precision connection between the top plate 1, bottom plate 3, and support plate 2 by setting multiple first connection holes on the main body 101 and corresponding second connection holes in the fixing area 1021 of the connecting plate 102, and using a plug-in assembly method with fasteners 5. The multi-positioned first and second connection holes form a matrix connection structure, which can flexibly adjust the number and position distribution of connection points according to actual stress requirements, significantly improving the load uniformity and fatigue resistance of the connection parts. The detachable connection scheme not only facilitates fine-tuning of positions during assembly, ensuring precise alignment between components, but also greatly simplifies the disassembly and assembly process during later maintenance. In addition, by optimizing the layout of the connection holes, the number of connecting parts used is effectively reduced while ensuring connection strength, further reducing the overall weight. This modular, adjustable connection structure is particularly suitable for the high-intensity use requirements of mining vehicles under complex working conditions, improving product reliability while reducing production and maintenance costs.

[0043] In some embodiments, please refer to Figure 1 The dimensions of the fixed area 1021 in the front-back direction gradually increase from the inside to the outside, and the dimensions of the connecting area 1022 in the front-back direction are the same as the outer dimensions of the fixed area 1021.

[0044] The fixed area 1021 adopts a trapezoidal design with its dimensions gradually increasing from the inside to the outside in the front-to-back direction, forming a natural stress transition zone. This smoothly distributes the load transmitted by the longitudinal beam 6 to the main body 101, effectively avoiding the stress abrupt change phenomenon at traditional right-angle connections. The connecting area 1022 maintains the same width as the fixed area 1021, ensuring sufficient contact area with the longitudinal beam 6 while maintaining structural simplicity. This embodiment not only significantly improves the bending and torsional resistance of the connection parts, making it particularly suitable for the extreme stress conditions of mining vehicles climbing slopes under heavy loads, but also effectively reduces the stress concentration factor through a smooth geometric transition, extending the service life of critical connection parts. Furthermore, without increasing material usage, structural optimization achieves improved mechanical properties, perfectly balancing the dual requirements of lightweight and high strength.

[0045] Optionally, the inner side of the fixed area 1021 has the same dimensions in the front-to-back direction as the main body 101.

[0046] Based on the same inventive concept, this utility model also provides a vehicle frame. Please refer to [link / reference]. Figure 2 The frame includes the aforementioned crossbeam assembly, and also includes a longitudinal beam 6 located on the outside of the crossbeam assembly, the longitudinal beam 6 being connected to the top plate 1 and the bottom plate 3.

[0047] The frame provided by this utility model adopts the aforementioned crossbeam assembly. The support plate 2 extends in the left-right direction and its surface is perpendicular to the front-back direction. Combined with the reinforcing plate 4 perpendicular to the support plate 2, a stable three-dimensional support frame is formed. This effectively disperses stress under heavy loads and bumpy conditions while ensuring structural strength, avoiding stress concentration problems at the welds of traditional box-type crossbeam assemblies. The top plate 1 and bottom plate 3 are connected to the longitudinal beams 6, which not only simplifies the assembly process but also improves the overall rigidity and stability of the frame. In addition, by rationally arranging the reinforcing plate 4 and support plate 2, the use of redundant materials is reduced, achieving the goal of lightweighting. At the same time, the internal space of the frame is optimized, facilitating the arrangement of the battery pack and other components. This utility model, through optimized structural design, significantly improves the overall performance of the frame and meets the lightweight and high-strength requirements of mining electric vehicles. The overall structure is compact, high-strength, and lightweight, which can significantly improve the range, driving safety, and service life of mining electric vehicles, making it suitable for complex and harsh mining conditions.

[0048] In some embodiments, please refer to Figure 2 The frame also includes a connecting bracket 7 connected to the outside of the longitudinal beam 6. The connecting bracket 7 is correspondingly arranged with the crossbeam assembly. The connecting bracket 7 includes a connecting mechanism and a mounting plate 702. The connecting mechanism includes a plurality of connecting plates 701 distributed at intervals along the front-rear direction. The connecting plates 701 are located on the outside of the longitudinal beam 6 and include a fixing part 7011 and a mounting part 7012 distributed from bottom to top. The mounting part 7012 extends to the top of the longitudinal beam 6. The mounting plate 702 is connected to the inside of the plurality of mounting parts 7012 and is used to connect with the vehicle body.

[0049] The connecting bracket 7 employs a structure of multiple connecting pieces 701 spaced apart along the front-rear direction, forming a stable frame-like support system. Its fixing part 7011 is reliably connected to the longitudinal beam 6, and the mounting part 7012 extends upwards above the longitudinal beam 6, then connects to the vehicle body via an inner mounting piece 702, achieving a multi-layered load transfer path. This design has the following outstanding advantages: First, the spaced connecting pieces 701 form a redundant support structure, so even if a single connecting piece 701 is damaged, it does not affect the overall connection strength, significantly improving the reliability of the mining vehicle under extreme working conditions. Second, the design of the mounting piece 702 integrated inside the connecting piece 701 ensures convenient connection to the vehicle body while optimizing space utilization and avoiding interference with surrounding components. Furthermore, the corresponding arrangement of the connecting bracket 7 and the crossbeam assembly forms a three-dimensional support network, improving the overall torsional stiffness of the frame and effectively suppressing frame deformation under heavy-load and bumpy conditions. This embodiment, while ensuring load-bearing capacity, adopts a modular design for easy installation and maintenance, providing a highly reliable frame solution for mining electric vehicles.

[0050] In some embodiments, please refer toFigure 2 The connecting bracket 7 also includes a fixing piece 703 connected to a plurality of fixing parts 7011, and the fixing piece 703 is connected to the outside of the longitudinal beam 6.

[0051] The fixing plate 703 laterally connects the fixing parts 7011 of multiple connecting plates 701, forming a stable reinforcing frame on the outside of the longitudinal beam 6. This integrates the originally independent connecting plates 701 into a unified load-bearing structure, significantly improving the overall bending stiffness of the connecting bracket 7, making the load distribution more uniform, and effectively preventing local stress concentration. This design, by increasing the contact area with the longitudinal beam 6, greatly improves the shear resistance of the connection points, making it particularly suitable for the complex alternating loads generated when mining vehicles travel on rough roads. Furthermore, the fixing plate 703, as an additional connection interface, provides redundant load transfer paths for the frame, ensuring that even if a single connection point becomes loose, it will not affect the overall structural stability. This embodiment improves the overall torsional stiffness of the frame system without significantly increasing weight, while maintaining the simplicity of the assembly process, ensuring the long-term reliable operation of mining electric vehicles under harsh working conditions.

[0052] In some embodiments, please refer to Figure 2 The mounting plate 702 includes a mounting area 7021 and a guide area 7022 distributed from bottom to top, with the guide area 7022 gradually tilting outward from bottom to top.

[0053] The guide area 7022 features a unique design that gradually slopes outwards from bottom to top, forming a natural guide slope. This automatically corrects positional deviations during vehicle assembly, effectively improving assembly efficiency. The stepped distribution of the mounting area 7021 and guide area 7022 ensures sufficient connection strength while retaining necessary installation and operation space. The sloped guide area 7022 effectively compensates for manufacturing tolerances, solving the assembly difficulties caused by welding deformation in large mining vehicle frames. Furthermore, the gradually changing guide surface automatically generates an inward force during the vehicle's descent, ensuring precise alignment between the mounting plate 702 and the vehicle's connection holes, significantly reducing assembly difficulty. In addition, without increasing material thickness, structural optimization enhances the tensile strength of the connection points, perfectly balancing the requirements of lightweight design and high strength.

[0054] Based on the same inventive concept, this utility model also provides a wide-body vehicle. The wide-body vehicle includes the aforementioned frame.

[0055] The wide-body vehicle provided by this utility model adopts the aforementioned frame design. The support plate 2 extends horizontally and its surface is perpendicular to the front-rear direction. Combined with the reinforcing plate 4 perpendicular to the support plate 2, a stable three-dimensional support frame is formed. This effectively disperses stress under heavy loads and bumpy conditions while ensuring structural strength, avoiding stress concentration problems at the welds of traditional box-type crossbeam assemblies. The top plate 1 and bottom plate 3 are connected to the longitudinal beams 6, simplifying the assembly process and improving the overall rigidity and stability of the frame. Furthermore, the rational arrangement of the reinforcing plate 4 and support plate 2 reduces the use of redundant materials, achieving a lightweight goal, while optimizing the internal space of the frame, facilitating the placement of the battery pack and other components. This utility model, through optimized structural design, significantly improves the overall performance of the frame and meets the lightweight and high-strength requirements of mining electric vehicles. The overall structure is compact, high-strength, and lightweight, significantly improving the range, driving safety, and service life of mining electric vehicles, making it suitable for complex and harsh mining conditions.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crossbeam assembly, characterized in that, It includes a support plate, a top plate disposed on the top of the support plate, a bottom plate disposed on the bottom of the support plate, and reinforcing plates that abut against the top plate and the bottom plate respectively in the vertical direction. The support plate extends in the horizontal direction and the surface of the support plate is perpendicular to the front-back direction. The reinforcing plates are perpendicular to the support plate and connected to the support plate. Both the top plate and the bottom plate are used to connect with the longitudinal beam.

2. The beam assembly as described in claim 1, characterized in that, The bottom of the support plate is provided with a clearance groove, and the base plate has an upwardly protruding clearance part, which is adapted to the clearance groove and inserted into the clearance groove.

3. The beam assembly as described in claim 1, characterized in that, Both the top plate and the bottom plate include: The main body is connected to the top or bottom of the support plate; and The connecting plate includes a fixing area connected to the main plate and a connecting area for connecting with the longitudinal beam, wherein the connecting area and the fixing area are arranged at an angle.

4. The beam assembly as described in claim 3, characterized in that, The main board body has multiple first connection holes along the left-right direction, and the fixing area has a second connection hole adapted to the first connection holes. Fixing members are inserted into the first connection holes and the second connection holes.

5. The beam assembly as described in claim 3, characterized in that, The dimensions of the fixed area gradually increase from the inside to the outside in the front-back direction, and the dimensions of the connecting area in the front-back direction are the same as the outer dimensions of the fixed area.

6. A frame, characterized in that, The beam assembly includes any one of claims 1-5, and further includes a longitudinal beam disposed outside the beam assembly, the longitudinal beam being connected to the top plate and the bottom plate.

7. The frame as described in claim 6, characterized in that, The frame also includes a connecting bracket connected to the outside of the longitudinal beam, the connecting bracket being correspondingly disposed to the crossbeam assembly, and the connecting bracket comprising: A connecting mechanism includes a plurality of connecting pieces spaced apart along a front-rear direction, the connecting pieces being disposed on the outer side of the longitudinal beam, and including a fixing part and a mounting part distributed from bottom to top, the mounting part extending above the longitudinal beam; and Mounting tabs are connected to the inside of the plurality of mounting portions and are used to connect to the vehicle body.

8. The frame as described in claim 7, characterized in that, The connecting bracket also includes a fixing piece connected to one of the fixing parts, the fixing piece being connected to the outside of the longitudinal beam.

9. The frame as described in claim 7, characterized in that, The mounting plate includes a mounting area and a guide area distributed from bottom to top, and the guide area gradually slopes outward from bottom to top.

10. A wide-body vehicle, characterized in that, A frame having any one of claims 6-9.

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