CN120039311A - Matrix type installation Kong Chejia longitudinal beam, modularized frame assembly and dump truck - Google Patents
Matrix type installation Kong Chejia longitudinal beam, modularized frame assembly and dump truck Download PDFInfo
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- CN120039311A CN120039311A CN202510156436.8A CN202510156436A CN120039311A CN 120039311 A CN120039311 A CN 120039311A CN 202510156436 A CN202510156436 A CN 202510156436A CN 120039311 A CN120039311 A CN 120039311A
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- longitudinal beam
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- frame
- beam body
- flying wing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
- B62D21/04—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members single longitudinal type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of vehicles, in particular to a matrix type mounting Kong Chejia longitudinal beam, a modularized frame assembly and a dumper, wherein the frame longitudinal beam comprises a groove type longitudinal beam body, the groove type longitudinal beam body comprises a longitudinal beam web panel, a longitudinal beam upper wing surface plate connected to the upper end of the longitudinal beam web panel and a longitudinal beam lower wing surface plate connected to the lower end of the longitudinal beam web panel, a plurality of standard mounting holes are arranged on the longitudinal beam web panel in a matrix type, the standard mounting holes are used for detachably connecting with other parts of the frame assembly, a unified interface is provided for mounting parts of a chassis of the frame assembly, and the deformation design of the modularized frame assembly can be realized by adjusting the mounting positions and the number of the chassis mounting parts when the length of the frame assembly is changed.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a matrix-type mounting Kong Chejia longitudinal beam, a modularized frame assembly and a self-discharging vehicle.
Background
The frame assembly is the basic framework that other parts were installed in the whole car, in traditional frame design structure, and the mounting hole on the frame longeron is according to the hole site requirement of each part of installing on the longeron, because the hole site demand of different parts is different, leads to the longeron to be different in the aperture size of the mounting hole in different positions and the locate mode of hole.
The existing frame assembly design structure has the following defects that firstly, the processing and manufacturing difficulty is increased, more complex processing technology and higher precision control are needed because of different hole specifications at different positions, secondly, the frame assembly is difficult to realize series production and cannot be produced in batches according to unified standards and specifications, furthermore, hole sites are required to be redesigned independently for a modified vehicle (a vehicle type which is locally modified or regulated on the basis of a basic vehicle type), the hole site design of an original frame longitudinal beam cannot be directly used, finally, parts cannot be interchanged, and because the hole sites and the hole diameters are not uniform, and a completely matched replacement part is difficult to find after a certain part is damaged.
Based on the defect of the design structure of the existing frame assembly, more effort is needed to design different hole sites in the research and development process of the automobile, more complex process and equipment are needed in the manufacturing process, and the cost is increased because parts cannot be interchanged during after-sales maintenance.
Disclosure of Invention
The invention provides a matrix type mounting Kong Chejia longitudinal beam, a modularized frame assembly and a self-unloading vehicle, which are used for solving the defects that the existing frame assembly causes great processing and manufacturing difficulty of an automobile in the research and development process, the frame assembly cannot be serialized, a modified automobile is required to be independently designed into a hole site, and parts cannot be interchanged, and the research and development, manufacturing and after-sale costs are increased.
The invention provides a matrix type mounting Kong Chejia longitudinal beam, which comprises a groove type longitudinal beam body, wherein the groove type longitudinal beam body is integrally formed by stamping, the groove type longitudinal beam body comprises a longitudinal beam web panel, a longitudinal beam upper wing surface plate connected to the upper end of the longitudinal beam web panel and a longitudinal beam lower wing surface plate connected to the lower end of the longitudinal beam web panel, a plurality of standard mounting holes are arranged on the longitudinal beam web panel in a matrix, and the standard mounting holes are used for detachably connecting with other parts of a frame assembly.
According to the matrix type mounting Kong Chejia longitudinal beam provided by the invention, the aperture of the standard mounting holes is uniformly one of 14.5mm, 15.5mm and 17.5mm, a plurality of standard mounting holes are distributed on the web panel of the longitudinal beam at equal intervals, the distance between two adjacent standard mounting holes is 40-60 mm in the horizontal direction, and the distance between two adjacent standard mounting holes is 50-70 mm in the vertical direction.
The invention also provides a modularized frame assembly, which comprises a frame longitudinal beam assembly module, a plurality of frame transverse beam assembly modules, an all-wing beam assembly module and a tail beam assembly module, wherein the frame longitudinal beam assembly module comprises two opposite frame longitudinal beams, the frame longitudinal beams are matrix-type mounting Kong Chejia longitudinal beams according to any one of the above, and groove-type longitudinal beam bodies of the two matrix-type mounting hole frame longitudinal beams are opposite to form the frame longitudinal beam assembly module.
The frame beam assembly modules are connected between the two groove-shaped longitudinal beam bodies, the plurality of frame beam assembly modules are arranged in parallel and located in the middle of the groove-shaped longitudinal beam bodies, and two ends of each frame beam assembly module are detachably connected with two standard mounting holes on the groove-shaped longitudinal beam bodies respectively.
The fly wing beam assembly module is connected between the two groove-shaped longitudinal beam bodies and is positioned at the middle and rear parts of the groove-shaped longitudinal beam bodies, and two ends of the fly wing beam assembly module are respectively detachably connected with standard mounting holes on the two groove-shaped longitudinal beam bodies.
The tail boom assembly module is connected between the two groove-shaped longitudinal beam bodies and is positioned at the tail part of the groove-shaped longitudinal beam bodies, and two ends of the tail boom assembly module are respectively detachably connected with standard mounting holes on the two groove-shaped longitudinal beam bodies.
According to the modularized frame assembly provided by the invention, the upper end of the longitudinal beam web panel of the groove-shaped longitudinal beam body is detachably connected with the front auxiliary frame connecting piece, the middle auxiliary frame connecting piece and the rear auxiliary frame connecting piece, and the front auxiliary frame connecting piece, the middle auxiliary frame connecting piece and the rear auxiliary frame connecting piece are used for connecting the upper auxiliary frame.
Each groove-type longitudinal beam body is provided with one auxiliary frame front connecting piece, the auxiliary frame front connecting pieces are located on one side, close to the front portion of the groove-type longitudinal beam body, of all the frame cross beam assembly modules, each groove-type longitudinal beam body is provided with a plurality of auxiliary frame middle connecting pieces, the auxiliary frame middle connecting pieces are distributed in the middle of the groove-type longitudinal beam body at intervals, each groove-type longitudinal beam body is provided with two auxiliary frame rear connecting pieces, and the two auxiliary frame rear connecting pieces are located on two sides of the flying wing beam assembly modules.
According to the modularized frame assembly provided by the invention, the L-shaped reinforcing plates are detachably connected to the longitudinal beam web panels of the two opposite groove-shaped longitudinal beam bodies, the L-shaped reinforcing plates extend along the length direction of the groove-shaped longitudinal beam bodies, and a plurality of frame beam assembly modules and all flying wing beam assembly modules are lapped on the L-shaped reinforcing plates.
According to the modularized frame assembly provided by the invention, the front parts of the two opposite groove-shaped longitudinal beam bodies are respectively bent back to each other to form the widened parts of the frame longitudinal beam assembly module for placing an engine.
According to the modularized frame assembly provided by the invention, the frame cross beam assembly module comprises a cross beam body, two cross beam upper connecting plates and two cross beam lower connecting plates, wherein the cross beam body is perpendicular to two opposite groove type longitudinal beam bodies, and the cross beam body is of a groove type structure formed by a cross beam web panel, a cross beam upper wing panel and a cross beam lower wing panel.
The two beam upper connecting plates are respectively riveted at two ends of the beam upper wing panel, one end of the beam upper connecting plate, which is far away from the beam upper wing panel, forms a bending part, and connecting holes corresponding to standard mounting holes on the groove-shaped longitudinal beam body are distributed on the bending part and are used for detachably connecting with the groove-shaped longitudinal beam body through connecting pieces.
The two lower connecting plates of the cross beam are respectively riveted at two ends of the lower wing panel of the cross beam, one end of the lower connecting plate of the cross beam, which is far away from the lower wing panel of the cross beam, forms a bending part, and connecting holes corresponding to standard mounting holes on the groove-shaped longitudinal beam body are distributed on the bending part and are used for detachably connecting with the groove-shaped longitudinal beam body through connecting pieces.
According to the modularized frame assembly provided by the invention, the flying wing beam assembly module comprises a flying wing beam body, two flying wing beam upper connecting plates and two flying wing beam lower connecting plates, wherein the flying wing beam body is perpendicular to two opposite groove-type longitudinal beam bodies, the flying wing beam body is of a hollow gradual change structure, and connecting parts are formed on the upper side, the lower side and the two end sides of the flying wing beam body.
The two flying wing beam upper connecting plates are respectively connected to two ends of the upper side of the flying wing beam body, the flying wing beam upper connecting plates are L-shaped plates and are respectively connected to the upper side and one end side of the flying wing beam body, and connecting holes corresponding to standard mounting holes on the groove-shaped longitudinal beam body are distributed on the flying wing beam upper connecting plates and are used for detachably connecting with the groove-shaped longitudinal beam body through connecting pieces.
The two flying wing beam lower connecting plates are respectively connected to two ends of the lower side of the flying wing beam body, the flying wing beam lower connecting plates are L-shaped plates and are respectively connected to the lower side and one end side of the flying wing beam body, and connecting holes corresponding to standard mounting holes on the groove-type longitudinal beam body are distributed on the flying wing beam lower connecting plates and are used for detachably connecting with the groove-type longitudinal beam body through connecting pieces.
According to the modularized frame assembly provided by the invention, the tail beam assembly module is of an integrated stamping structure and comprises a tail beam body part and connecting parts vertically arranged at four corners of the tail beam body part, wherein connecting holes corresponding to standard mounting holes on the groove-type longitudinal beam body are distributed on the connecting parts and are used for detachably connecting with the groove-type longitudinal beam body through connecting pieces.
The invention also provides a dump truck, which comprises the modularized frame assembly.
The matrix type mounting Kong Chejia longitudinal beam, the modularized frame assembly and the dumper provided by the invention have the advantages that the groove type longitudinal beam body of the matrix type mounting hole longitudinal beam adopts a uniform section groove type beam structure, the longitudinal beam web panel of the groove type longitudinal beam body adopts matrix type distributed standard mounting holes, a unified interface is provided for mounting parts of the chassis of the frame assembly, and the deformation design of the modularized frame assembly can be realized by adjusting the mounting positions and the number of the mounting parts of the chassis when the length of the frame assembly changes. The invention can meet the universal design requirement of different variant vehicles based on the standard mounting holes distributed in matrix, greatly improves the modularization level of the whole vehicle, improves the universality of various chassis accessories on different variant vehicles, and reduces the research, development, manufacturing and after-sale cost.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a matrix mounting hole frame rail provided by the present invention.
Fig. 2 is a schematic distribution view of standard mounting holes on a girder web plate provided by the invention.
FIG. 3 is a schematic illustration of an isometric construction of a modular frame assembly provided by the present invention.
Fig. 4 is a schematic top view of a modular frame assembly provided by the present invention.
Fig. 5 is a schematic front view of a modular frame assembly provided by the present invention.
Fig. 6 is a schematic structural view of a frame rail assembly module provided by the present invention.
FIG. 7 is a schematic view of the configuration of the flying wing beam assembly module provided by the present invention.
Fig. 8 is a schematic structural view of a tail boom assembly module provided by the present invention.
Reference numeral 1, a groove type longitudinal beam body; 11, a longitudinal beam web panel, 12, a longitudinal beam upper wing panel, 13, a longitudinal beam lower wing panel, 14, a standard mounting hole, 2, a frame beam assembly module, 21, a beam body, 22, a beam upper connecting plate, 23, a beam lower connecting plate, 3, a flying wing beam assembly module, 31, a flying wing beam body, 32, a flying wing beam upper connecting plate, 33, a flying wing beam lower connecting plate, 4, a tail beam assembly module, 41, a tail beam body part, 42, a connecting part, 5, a subframe front connecting piece, 6, a subframe middle connecting piece, 7, a subframe rear connecting piece and 8, L-shaped reinforcing plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "coupled" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The specific structure of the matrix-mounted Kong Chejia stringers, modular frame assemblies, and dump truck of the present invention is described below in connection with fig. 1-8.
An embodiment of the present invention provides a matrix mounting Kong Chejia longitudinal beam, as shown in fig. 1 and 2, where the matrix mounting hole frame longitudinal beam includes a slot type longitudinal beam body 1, the slot type longitudinal beam body 1 is integrally formed by stamping, the slot type longitudinal beam body 1 includes a longitudinal beam web panel 11, a longitudinal beam upper airfoil panel 12 connected to an upper end of the longitudinal beam web panel 11, and a longitudinal beam lower airfoil panel 13 connected to a lower end of the longitudinal beam web panel 11, and a plurality of standard mounting holes 14 are arranged on the longitudinal beam web panel 11 in a matrix, and the standard mounting holes 14 are used for detachably connecting with other components of the frame assembly.
It can be appreciated that the matrix type mounting Kong Chejia longitudinal beam of this embodiment, the groove type longitudinal beam body 1 adopts the equal cross section groove type beam structure, the matrix type distribution standard mounting holes 14 are adopted on the longitudinal beam web panel 11 of the groove type longitudinal beam body 1, a unified interface is provided for chassis mounting parts of the frame assembly, the modular frame assembly modification design can be realized by adjusting the mounting positions and the number of the chassis mounting parts when the length of the frame assembly is changed, the matrix type mounting Kong Chejia longitudinal beam of this embodiment can be based on the matrix type distribution standard mounting holes 14, the universal design requirement of different modification vehicles is met, the modularization level of the whole vehicle is greatly improved, the universality of various chassis accessories on different modification vehicles is improved, and the research, development, manufacturing and after-sale cost is reduced.
In some embodiments of the matrix type mounting hole frame longitudinal beam, the aperture of each standard mounting hole 14 is one of 14.5mm, 15.5mm and 17.5mm, the plurality of standard mounting holes 14 are distributed on the longitudinal beam web panel 11 at equal intervals, the distance between two adjacent standard mounting holes 14 in the horizontal direction is 40-60 mm, and the distance between two adjacent standard mounting holes 14 in the vertical direction is 50-70 mm. The matrix-type arrangement punching heads are adopted during manufacturing, and the standard mounting hole 14 hole site processing is realized on the premise of not adjusting the layout of the punching heads, so that the punching machine is more efficient and more accurate compared with the traditional punching.
The aperture of the standard mounting hole 14 is uniformly specified as one of three sizes, namely 14.5mm, 15.5mm or 17.5mm, in design, and the selective aperture setting is to meet different application scenes and mounting requirements, so as to ensure the optimal assembly effect and structural strength. Referring to fig. 2, the diameters of the standard mounting holes 14 are uniformly selected to be 15.5mm, the distance between two adjacent standard mounting holes 14 is set to be 40mm to 60mm in the horizontal direction (X-axis direction), 50mm is adopted in the embodiment, the design of the spacing ensures enough structural strength and provides flexibility to adapt to different mounting requirements, the distance between two adjacent standard mounting holes 14 is set to be 50mm to 70mm in the vertical direction (Z-axis direction), 60mm is adopted in the embodiment, and the vertical spacing is combined with the horizontal spacing to form a rectangular grid layout, so that the so-called matrix distribution is formed.
By employing the standard mounting holes 14 of the particular specifications of the present embodiment, a modular design of the frame rail is enabled, which greatly simplifies the manufacturing process and reduces the need for specific tools or processes since all associated mounting holes are standardized. For maintenance, it is easier to find a matching replacement, further reducing maintenance costs. In addition, it also supports a more efficient production and assembly process, as the manufacturer can flexibly adjust the position of the components as needed without redesigning the entire frame structure. When the length of the frame assembly needs to be changed, the deformation design can be easily carried out by adjusting the installation positions and the number of the chassis parts, so that the modularization level of the whole vehicle is improved, the universality of various chassis accessories on different deformation vehicles is enhanced, and the research, development, manufacturing and after-sale costs are reduced.
In another aspect, the present invention also provides a modular frame assembly, as shown in connection with fig. 3, 4 and 5, comprising a frame rail assembly module, a plurality of frame rail assembly modules 2, an flying wing beam assembly module 3 and a tail beam assembly module 4. The frame cross beam assembly module 2, the flying wing beam assembly module 3 and the tail beam assembly module 4 are connected between the frame longitudinal beam assembly modules, and each cross beam assembly is lower than the upper edge of the frame longitudinal beam assembly module.
The frame longitudinal beam assembly module comprises two opposite frame longitudinal beams, wherein the frame longitudinal beams are matrix-type mounting Kong Chejia longitudinal beams in any one embodiment, and groove-type longitudinal beam bodies 1 of the two matrix-type mounting hole frame longitudinal beams are opposite to form the frame longitudinal beam assembly module. It can be appreciated that the material of the groove-type longitudinal beam body 1 in the embodiment can be a low-alloy high-strength hot rolled steel plate, the thickness range is 4-10 mm, and the material mark is 500-700L. The thickness of the section of the groove type longitudinal beam body 1 can be designed into a section structure with unequal thickness according to the bearing capacity requirement of a vehicle type, so that the local reinforcement of the longitudinal beam is realized. Similarly, the section height of the groove type longitudinal beam body 1 can be designed into a section structure with different heights according to the bearing capacity requirement of a vehicle type, so that the longitudinal beam is locally reinforced. Two opposite groove-shaped longitudinal beam bodies 1 form a frame longitudinal beam assembly module, and serve as a basic supporting structure of the whole frame assembly, a unified interface is provided for connection of other modules through standard mounting holes 14 on a longitudinal beam web panel 11 of the groove-shaped longitudinal beam body 1, vehicle refitting does not need drilling, and refitting adaptability of the dump truck is improved to the greatest extent.
The frame beam assembly module 2 is connected between the two groove-shaped longitudinal beam bodies 1, the plurality of frame beam assembly modules 2 are arranged in parallel and are positioned in the middle of the groove-shaped longitudinal beam bodies 1, and two ends of the frame beam assembly module 2 are respectively detachably connected with standard mounting holes 14 on the two groove-shaped longitudinal beam bodies 1. It will be appreciated that the plurality of frame rail assembly modules are arranged in parallel between the two channel rail bodies 1 and are concentrated in the middle of the channel rail bodies 1, each end of which is detachably connected to the two channel rail bodies 1 via standard mounting holes 14, and the frame rail assembly modules 2 strengthen the overall rigidity of the frame and provide mounting points for suspension systems and other chassis components.
The fly wing beam assembly module 3 is connected between the two groove-shaped longitudinal beam bodies 1 and is positioned at the middle and rear parts of the groove-shaped longitudinal beam bodies 1, and two ends of the fly wing beam assembly module 3 are respectively detachably connected with standard mounting holes 14 on the two groove-shaped longitudinal beam bodies 1. It will be appreciated that the fly wing assembly module 3 is located in the mid-rear region between the two channel rail bodies 1, and is also detachably connected to the two channel rail bodies 1 by standard mounting holes 14, the fly wing assembly module 3 typically having a progressive structural design to accommodate different load distributions and space constraints.
The tail boom assembly module 4 is connected between the two groove-shaped longitudinal beam bodies 1 and is positioned at the tail part of the groove-shaped longitudinal beam bodies 1, and two ends of the tail boom assembly module 4 are respectively detachably connected with standard mounting holes 14 on the two groove-shaped longitudinal beam bodies 1. It will be appreciated that the tail boom assembly module 4 is located at the tail portion between the two channel beam bodies 1 and is detachably connected to the two channel beam bodies 1 through standard mounting holes 14. The tail beam assembly module 4 may enhance the strength of the frame tail while also potentially providing additional mounting points for specific equipment or accessories.
The modular frame assembly of the embodiment is designed to allow manufacturers to quickly adjust and configure the frame assembly according to the requirements of different vehicle types, and because all modules are based on the same matrix type mounting hole layout, the interchangeability and the universality of parts can be greatly improved, the production flow is simplified, the manufacturing cost is reduced, and in addition, the modular method is convenient for maintenance and service, because the whole frame is not required to be changed in large scale when a certain part is replaced or maintained. By adopting the modularized frame assembly of the embodiment, the modularization level of the whole vehicle can be remarkably improved, different modified vehicles can share the same design scheme and technical specification to a greater extent, the development period and the cost can be reduced, the market diversification requirements can be better met, and the competitiveness of the product is improved.
In some embodiments of the modular frame assembly of the present invention, as shown in connection with fig. 3 and 5, the upper ends of the rail web panels 11 of the channel rail body 1 are detachably connected with a subframe front connector 5, a subframe middle connector 6 and a subframe rear connector 7, and the subframe front connector 5, the subframe middle connector 6 and the subframe rear connector 7 are used for connecting the upper-mounted subframe.
Each groove-shaped longitudinal beam body 1 is provided with a front auxiliary frame connecting piece 5, the front auxiliary frame connecting piece 5 is positioned on one side, close to the front part of the groove-shaped longitudinal beam body 1, of all the frame cross beam assembly modules 2, each groove-shaped longitudinal beam body 1 is provided with a plurality of middle auxiliary frame connecting pieces 6, the middle auxiliary frame connecting pieces 6 are distributed in the middle of the groove-shaped longitudinal beam body 1 at intervals, each groove-shaped longitudinal beam body 1 is provided with two rear auxiliary frame connecting pieces 7, and the two rear auxiliary frame connecting pieces 7 are positioned on two sides of the flying wing beam assembly modules 3.
It can be appreciated that the present embodiment achieves a stable connection between the upper subframe and the main frame by adding the design of the subframe connection. Wherein, a front connection piece 5 of the auxiliary frame is arranged at the position of the upper end of the longitudinal beam web panel 11 of each groove type longitudinal beam body 1 close to the front part and is used for connecting the front end part of the upper auxiliary frame so as to ensure the stability of the front structure of the vehicle. A plurality of auxiliary frame middle part connecting pieces 6 are distributed in the middle area of the groove type longitudinal beam body 1 at intervals, the auxiliary frame middle part connecting pieces 6 provide additional supporting points, the connection strength between the upper auxiliary frame and the main frame is enhanced, the load can be uniformly dispersed in the running process of the vehicle, and the stability and the durability of the whole structure are improved. Two auxiliary frame rear connecting pieces 7 are arranged at the tail part of the groove-type longitudinal beam body 1, the two auxiliary frame rear connecting pieces 7 are positioned at two sides of the flying wing beam assembly module 3, the auxiliary frame rear connecting pieces 7 are used for connecting the rear end part of the upper auxiliary frame, the firmness of the tail structure of the vehicle is ensured, and mounting points are provided for specific equipment or accessories.
The front auxiliary frame connecting piece 5, the middle auxiliary frame connecting piece 6 and the rear auxiliary frame connecting piece 7 are detachably connected with the longitudinal beam web panel 11 on the groove-type longitudinal beam body 1 through the standard mounting holes 14, and the standardized connecting mode not only simplifies the assembly process, but also enables maintenance and replacement to be more convenient. According to the embodiment, the special connecting pieces are added at the key positions (the front, middle and rear parts of the groove-shaped longitudinal beam body 1), so that the connection stability between the upper auxiliary frame and the main frame is effectively improved, and the safety and reliability of the whole vehicle structure are enhanced. Because the auxiliary frame connecting piece is designed based on matrix type mounting hole layout, the quantity and the position of the connecting piece can be flexibly adjusted according to the requirements of different vehicle types, and the diversified design requirements are met. The adoption of the standardized connection scheme reduces the production complexity, is convenient for subsequent maintenance and service work, and reduces the maintenance time and cost.
In other embodiments of the modular frame assembly of the present invention, with continued reference to fig. 3, the longitudinal web panels 11 of two opposing channel rail bodies 1 are each detachably connected with an L-shaped reinforcing plate 8, the L-shaped reinforcing plate 8 extending along the length of the channel rail body 1, and a plurality of frame rail assembly modules 2 and flying wing beam assembly modules 3 are each overlapped on the L-shaped reinforcing plate 8.
It will be appreciated that the primary function of the L-shaped reinforcement panel 8 is to provide additional support and reinforcement, particularly at the overlap of the frame rail assembly module 2 and the winged beam assembly module 3, which helps to distribute loads and reduce local stress concentrations, thereby improving the bending and torsional resistance of the frame. By overlapping the plurality of frame rail assembly modules 2 and the flying wing beam assembly modules 3 on the L-shaped reinforcing plate 8, forces from different directions can be more effectively distributed and transmitted, so that the whole frame system is more stable and reliable.
The presence of the L-shaped reinforcement plate 8 significantly enhances the rigidity of the connection between the frame rails, reducing the possibility of deformation, particularly when exposed to large loads or complex road conditions. Because the L-shaped reinforcing plate 8 is detachably connected, the position of the L-shaped reinforcing plate can be flexibly adjusted or replaced according to actual requirements, and the normal operation of other parts can not be influenced. In addition, this design also facilitates later maintenance and overhaul. The L-shaped reinforcing plate 8 not only provides a physical reinforcing effect, but also provides a stable mounting platform for the components such as the frame beam assembly module 2, the flying wing beam assembly module 3 and the like, and further promotes the modularized design concept of the frame assembly.
In some embodiments of the modular frame assembly of the present invention, referring to fig. 4, the front portions of two opposing channel rail bodies 1 are each folded away from each other to form a widened portion of a frame rail assembly module for mounting an engine.
It will be appreciated that the widened portion of the frame rail assembly module is located at the front end of the frame rail assembly module to ensure that there is sufficient space to accommodate the engine and related components, such as the air intake system, the exhaust system, etc. By creating additional space in the front of the frame, the position and angle of the engine can be more flexibly arranged, which is beneficial to improving the cooling effect and maintenance convenience, and the presence of the widened portion enables the frame to adapt to various sizes and types of engines, thereby enhancing the flexibility of vehicle configuration. The middle part and the rear end of the frame longitudinal beam assembly module keep meeting the 2550mm width limiting regulation requirement of the whole vehicle.
In some embodiments of the modular frame assembly of the present invention, referring to fig. 6, the frame rail assembly module 2 includes a rail body 21, two rail upper connection plates 22 and two rail lower connection plates 23, the rail body 21 being disposed perpendicular to the two opposing channel rail bodies 1, the rail body 21 being a channel structure formed by a rail web panel, a rail upper wing panel and a rail lower wing panel. The two beam upper connecting plates 22 are respectively riveted at the two ends of the beam upper wing panel, one end of the beam upper connecting plate 22, which is far away from the beam upper wing panel, forms a bending part, and connecting holes corresponding to the standard mounting holes 14 on the groove-type longitudinal beam body 1 are distributed on the bending part and are used for detachably connecting with the groove-type longitudinal beam body 1 through connecting pieces. The two beam lower connecting plates 23 are respectively riveted at the two ends of the beam lower wing panel, one end of the beam lower connecting plate 23, which is far away from the beam lower wing panel, forms a bending part, and connecting holes corresponding to the standard mounting holes 14 on the groove-type longitudinal beam body 1 are distributed on the bending part and are used for detachably connecting with the groove-type longitudinal beam body 1 through connecting pieces.
In some specific examples, the frame beam assembly module 2 is integrally connected with the upper arch beam upper connecting plate 22 and the lower beam connecting plate 23 through rivets by an integral stamping beam body 21, connecting holes of bending parts of the upper beam connecting plate 22 and the lower beam connecting plate 23 are distributed in a horizontal direction according to a multiple of 50mm, the beam assembly adopts an integral stamping beam body and an upper arch connecting plate, the weight of the beam assembly is reduced, the general rate of the beam is improved, the beam body 21 is of an integral stamping structure, the upper end is flush, the lower end is of an upper arch design, the upper end of the beam body 21 does not exceed the uppermost end of the frame beam assembly module, the upper arch structure of the beam body 21 is guaranteed not to interfere with a dump truck upper mounting auxiliary frame, the transmission shaft movement space is guaranteed by the upper arch arc structure, the connecting holes of the bending parts of the upper beam connecting plate 22 and the lower beam connecting plate 23 are distributed in a standard hole spacing of 50mm, and the matrix standard mounting holes 14 of the frame beam assembly module are connected with the frame beam assembly module through bolts/rivets.
It will be appreciated that the beam body 21 is perpendicular to two oppositely disposed channel type longitudinal beam bodies 1, and serves as a transverse connection and support, and that the beam body 21 is formed of a beam web panel, a beam upper wing panel and a beam lower wing panel, forming a channel type (C-type) structure, which provides sufficient strength and facilitates connection with other components. Two crossbeam upper connecting plates 22 are fixed at the both ends of crossbeam upper wing panel through the riveting respectively, keep away from the one end of crossbeam upper wing panel and have formed the kink, and it has the connecting hole that corresponds with the standard mounting hole 14 on the cell type longeron body 1 to distribute on this kink, and the kink is used for carrying out detachable connection through connecting piece (such as bolt or screw) and cell type longeron body 1 with last connecting hole, has ensured that crossbeam body 21 can be firmly fixed on the frame longeron, has reserved the flexibility of dismantling and maintaining simultaneously. The two beam lower connecting plates 23 are fixed at the two ends of the beam lower wing panel through riveting, similar to the beam upper connecting plate 22, the end, far away from the beam lower wing panel, of the beam lower connecting plate 23 is also provided with a bending part, and connecting holes corresponding to the standard mounting holes 14 on the groove-type longitudinal beam body 1 are also distributed on the bending part and are used for realizing detachable connection with the groove-type longitudinal beam body 1 through connecting pieces, so that the stability and rigidity of the whole frame system are further enhanced.
The design of the upper cross beam connecting plate 22 and the lower cross beam connecting plate 23 enables the cross beam body 21 to be firmly connected to the groove-type longitudinal beam body 1, so that the overall structural rigidity and the torsion resistance of the frame are remarkably improved. By adopting the standardized connecting hole layout and the detachable connecting mode, the assembly process is simplified, the subsequent maintenance and service work is facilitated, and for example, when a certain part needs to be replaced or maintained, the whole frame does not need to be changed in a large scale. All connections are based on standard mounting holes 14 distributed in a matrix, ensuring a high degree of interchangeability between different modules, reducing production costs and shortening development cycles. The design of the bending part is helpful for distributing the acting forces from different directions more uniformly, reducing local stress concentration and prolonging the service life of the frame system.
In some embodiments of the modular frame assembly of the present invention, as shown in fig. 7, the fly-wing assembly module 3 comprises a fly-wing beam body 31, two fly-wing beam upper connection plates 32 and two fly-wing beam lower connection plates 33, the fly-wing beam body 31 is disposed perpendicular to the two opposite groove-type longitudinal beam bodies 1, the fly-wing beam body 31 is of a hollow gradual change structure, and the upper side, the lower side and both end sides of the fly-wing beam body 31 are formed with connection parts. The two flying wing beam upper connecting plates 32 are respectively connected to two ends of the upper side of the flying wing beam body 31, the flying wing beam upper connecting plates 32 are L-shaped plates and are respectively connected to the upper side and one end side of the flying wing beam body 31, and connecting holes corresponding to the standard mounting holes 14 on the groove-type longitudinal beam body 1 are distributed on the flying wing beam upper connecting plates 32 and are used for being detachably connected with the groove-type longitudinal beam body 1 through connecting pieces. The two flying wing beam lower connecting plates 33 are respectively connected to two ends of the lower side of the flying wing beam body 31, the flying wing beam lower connecting plates 33 are L-shaped plates and are respectively connected to the lower side and one end side of the flying wing beam body 31, and connecting holes corresponding to the standard mounting holes 14 on the groove-type longitudinal beam body 1 are distributed on the flying wing beam lower connecting plates 33 and are used for being detachably connected with the groove-type longitudinal beam body 1 through connecting pieces.
In some specific examples, the flying wing beam assembly module 3 is integrally connected with the flying wing beam upper connecting plate 32 and the flying wing beam lower connecting plate 33 through bolts by the cast integral flying wing beam body 31, and the connecting holes on the flying wing beam upper connecting plate 32 and the flying wing beam lower connecting plate 33 are distributed in the horizontal direction according to the multiple of 50 mm. The fly wing beam assembly module 3 adopts a cast tube beam body (fly wing beam body 31), a gradual change type beam connecting plate (fly wing beam upper connecting plate 32 and fly wing beam lower connecting plate 33), and improves the light weight level on the premise of ensuring the strength of the frame assembly, the fly wing beam body 31 is an integrally cast rectangular tubular beam, the adopted material brand is QT700 or QT800, the upper end of the fly wing beam body is provided with a rear suspension thrust rod mounting seat and a connecting plate mounting seat, the fly wing beam upper connecting plate 32 and the fly wing beam lower connecting plate 33 are provided with standard hole layouts with 50mm horizontal direction intervals, and are connected with the rectangular tubular beam through bolts, and the fly wing beam upper connecting plate 32 and the fly wing beam lower connecting plate 33 are designed into a gradual change structure in section through topological optimization.
It will be appreciated that the fly wing beam body 31 is perpendicular to two oppositely disposed groove-shaped longitudinal beam bodies 1, is positioned at the middle and rear parts of the frame, adopts a hollow gradual change structural design, not only reduces the weight, but also improves the structural strength and rigidity, and the upper side, the lower side and the two end sides of the fly wing beam body 31 are all formed with connecting parts to ensure effective connection with other components. The two flying wing beam upper connecting plates 32 are respectively connected to two upper side ends of the flying wing beam body 31, the flying wing beam upper connecting plates 32 are L-shaped plates, one end of each flying wing beam upper connecting plate is connected to the upper side of the flying wing beam body 31, the other end of each flying wing beam upper connecting plate is connected to one end of each flying wing beam body, the L-shaped design provides additional supporting points, the stability and reliability of connection are enhanced, connecting holes corresponding to standard mounting holes 14 on the groove-type longitudinal beam body 1 are distributed on the flying wing beam upper connecting plates 32, and the flying wing beam assembly modules 3 can be firmly fixed on the frame longitudinal beams through detachable connection through connecting pieces (such as bolts or screws), and meanwhile the flexibility of detachment and maintenance is reserved. Two flying wing beam lower connection plates 33 are respectively connected to two lower ends of the flying wing beam body 31, similar to the flying wing beam upper connection plate 32, the flying wing beam lower connection plates 33 are also L-shaped plates, one ends of the L-shaped plates are connected to the lower side of the flying wing beam body 31, the other ends of the L-shaped plates are connected to one end side, and the L-shaped connection plates are also provided with connection holes corresponding to the standard mounting holes 14 on the groove-shaped longitudinal beam body 1, so that detachable connection is realized through connection pieces, and the stability and rigidity of the whole frame system are further enhanced.
The design of the L-shaped connecting plate enables the flying wing beam body 31 to be firmly connected to the groove-shaped longitudinal beam body 1, and the integral structural rigidity and torsion resistance of the frame are remarkably improved. The hollow gradient structure of the fly-wing beam body 31 realizes a lightweight design while ensuring strength, contributing to improving fuel efficiency and load capacity of the vehicle. The standardized connecting hole layout and the detachable connecting mode are adopted, so that the assembly process is simplified, and the subsequent maintenance and service work is facilitated. For example, when a portion needs to be replaced or serviced, extensive modification of the entire frame is not required. All connections are based on standard mounting holes 14 distributed in a matrix, ensuring a high degree of interchangeability between different modules, reducing production costs and shortening development cycles. The design of the L-shaped connecting plate is helpful for distributing the acting forces from different directions more uniformly, reducing local stress concentration and prolonging the service life of the frame system.
In some embodiments of the modular frame assembly of the present invention, referring to fig. 8, the tail beam assembly module 4 is an integral stamping structure, and includes a tail beam body 41 and connection portions 42 vertically disposed at four corners of the tail beam body 41, wherein connection holes corresponding to standard mounting holes 14 on the channel type longitudinal beam body 1 are distributed on the connection portions 42, and are used for detachably connecting with the channel type longitudinal beam body 1 through connection pieces.
It can be appreciated that the tail boom assembly module 4 is an integral stamping structure, and the design not only simplifies the production process, but also ensures the consistency and strength of the structure. The tail beam body 41 is located at the tail part between the two opposite groove type longitudinal beam bodies 1, and serves as a terminal supporting structure of the frame assembly, and plays a role in stabilizing and reinforcing. The connection portions 42 are vertically provided at four corners of the tail beam body portion 41, and form four connection points, so that the tail beam assembly module 4 can be firmly fixed to the vehicle frame. Each connecting portion 42 is provided with connecting holes corresponding to the standard mounting holes 14 on the groove-shaped longitudinal beam body 1, and the connecting holes are used for realizing detachable connection through connecting pieces (such as bolts or screws), so that the stability of connection is ensured, and the flexibility of detachment and maintenance is reserved.
The design of the four-corner connecting parts 42 of the tail beam assembly module 4 of the embodiment provides a plurality of supporting points, so that the connection rigidity between the tail beam assembly module 4 and the groove-type longitudinal beam body 1 is obviously enhanced, and the torsion resistance and the overall stability of the whole frame system are improved. The integral stamping structure reduces the number of parts and assembly procedures, reduces the production cost and improves the production efficiency. At the same time, the design can ensure the consistency of the structure and the quality stability. All connections are based on standard mounting holes 14 distributed in a matrix, ensuring high interchangeability between different modules, facilitating quick adjustment and replacement, and shortening vehicle production and maintenance cycles. The design of the four corner joints 42 helps to more evenly distribute forces from different directions, reduces localized stress concentrations, and prolongs the service life of the frame system. In addition, it provides a reliable mounting point for rear suspensions and other accessories. The detachable connection mode enables maintenance and replacement of the tail beam assembly module 4 to be more convenient, the whole frame is not required to be changed in a large scale, and maintenance time and cost are reduced.
In another aspect, the present invention provides a dump truck comprising a modular frame assembly according to any one of the embodiments, it being understood that the dump truck of the present invention is applicable to hybrid, fuel and gas dump trucks, since the dump truck of the present invention comprises a modular frame assembly, the modularized level of the whole vehicle is improved, the universality of various chassis accessories on different variant vehicles is enhanced, the research, development, manufacturing and after-sale costs are reduced, the number and the positions of the modules are adjusted, and the design requirements of different vehicle types can be rapidly realized, so that the diversified requirements of the market are better met.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (10)
1. The utility model provides a matrix installation Kong Chejia longeron, its characterized in that, includes groove type longeron body (1), integrated stamping forming of groove type longeron body (1), groove type longeron body (1) are in including longeron web panel (11), connect longeron upper airfoil board (12) of longeron web panel (11) upper end and connect longeron lower airfoil board (13) of longeron web panel (11) lower extreme, be a plurality of standard mounting holes (14) that the matrix was arranged on longeron web panel (11), standard mounting hole (14) are used for carrying out detachable connection with other parts of frame assembly.
2. The matrix type mounting Kong Chejia longitudinal beam according to claim 1, wherein the aperture of the standard mounting holes (14) is one of 14.5mm, 15.5mm and 17.5mm, the standard mounting holes (14) are equidistantly distributed on the web panel (11) of the longitudinal beam, the distance between two adjacent standard mounting holes (14) in the horizontal direction is 40-60 mm, and the distance between two adjacent standard mounting holes (14) in the vertical direction is 50-70 mm.
3. A modular frame assembly, comprising:
a frame rail assembly module comprising two opposing frame rails, the frame rails being the matrix mounting Kong Chejia rails of claim 1 or 2, the channel rail bodies (1) of the two matrix mounting hole frame rails being opposing to each other to form the frame rail assembly module;
the frame beam assembly modules (2) are connected between the two groove-shaped longitudinal beam bodies (1), the frame beam assembly modules (2) are arranged in parallel and are positioned in the middle of the groove-shaped longitudinal beam bodies (1), and two ends of the frame beam assembly modules (2) are respectively detachably connected with standard mounting holes (14) on the two groove-shaped longitudinal beam bodies (1);
The flying wing beam assembly module (3) is connected between the two groove-shaped longitudinal beam bodies (1) and positioned at the middle and rear parts of the groove-shaped longitudinal beam bodies (1), and two ends of the flying wing beam assembly module (3) are respectively detachably connected with standard mounting holes (14) on the two groove-shaped longitudinal beam bodies (1);
The tail boom assembly module (4) is connected between the two groove-shaped longitudinal beam bodies (1) and is positioned at the tail of the groove-shaped longitudinal beam bodies (1), and two ends of the tail boom assembly module (4) are respectively detachably connected with two standard mounting holes (14) on the groove-shaped longitudinal beam bodies (1).
4. A modular frame assembly according to claim 3, wherein the upper end of the longitudinal beam web panel (11) of the channel-shaped longitudinal beam body (1) is detachably connected with a front subframe connector (5), a middle subframe connector (6) and a rear subframe connector (7), and the front subframe connector (5), the middle subframe connector (6) and the rear subframe connector (7) are used for connecting a top-loading subframe;
Each groove-shaped longitudinal beam body (1) is provided with one auxiliary frame front connecting piece (5), the auxiliary frame front connecting pieces (5) are located on one side, close to the front portion of the groove-shaped longitudinal beam body (1), of all the frame cross beam assembly modules (2), each groove-shaped longitudinal beam body (1) is provided with a plurality of auxiliary frame middle connecting pieces (6), the auxiliary frame middle connecting pieces (6) are distributed in the middle of the groove-shaped longitudinal beam body (1) at intervals, each groove-shaped longitudinal beam body (1) is provided with two auxiliary frame rear connecting pieces (7), and the two auxiliary frame rear connecting pieces (7) are located on two sides of the flying wing beam assembly modules (3).
5. A modular frame assembly according to claim 3, wherein two opposite longitudinal beam web panels (11) of the channel-shaped longitudinal beam body (1) are detachably connected with an L-shaped reinforcing plate (8), the L-shaped reinforcing plate (8) extends along the length direction of the channel-shaped longitudinal beam body (1), and a plurality of frame cross beam assembly modules (2) and flying wing beam assembly modules (3) are lapped on the L-shaped reinforcing plate (8).
6. A modular frame assembly according to claim 3, wherein the front portions of two opposing channel rail bodies (1) are respectively bent away from each other to form a widened portion of the frame rail assembly module for mounting an engine.
7. A modular frame assembly according to any one of claims 3 to 6, wherein the frame rail assembly module (2) comprises:
The beam body (21) is perpendicular to the two opposite groove-type longitudinal beam bodies (1), and the beam body (21) is of a groove-type structure formed by a beam web panel, a beam upper wing panel and a beam lower wing panel;
The two beam upper connecting plates (22) are respectively riveted at two ends of the beam upper wing panel, a bending part is formed at one end of the beam upper connecting plates (22) away from the beam upper wing panel, and connecting holes corresponding to standard mounting holes (14) on the groove-type longitudinal beam body (1) are distributed on the bending part and are used for detachably connecting with the groove-type longitudinal beam body (1) through connecting pieces;
the two cross beam lower connecting plates (23) are respectively riveted at two ends of the cross beam lower wing panel, one end of the cross beam lower connecting plates (23) away from the cross beam lower wing panel forms a bending part, and connecting holes corresponding to standard mounting holes (14) on the groove-type longitudinal beam body (1) are distributed on the bending part and are used for detachably connecting with the groove-type longitudinal beam body (1) through connecting pieces.
8. A modular frame assembly according to any one of claims 3 to 6, wherein the flying wing beam assembly module (3) comprises:
The flying wing beam body (31) is arranged perpendicular to the two opposite groove-type longitudinal beam bodies (1), the flying wing beam body (31) is of a hollow gradual change structure, and connecting parts are formed on the upper side, the lower side and the two end sides of the flying wing beam body (31);
The two flying wing beam upper connecting plates (32) are respectively connected to the two ends of the upper side of the flying wing beam body (31), the flying wing beam upper connecting plates (32) are L-shaped plates and are respectively connected to the upper side and one end side of the flying wing beam body (31), and connecting holes corresponding to standard mounting holes (14) on the groove-shaped longitudinal beam body (1) are distributed on the flying wing beam upper connecting plates (32) and are used for detachably connecting with the groove-shaped longitudinal beam body (1) through connecting pieces;
Two flying wing beam lower connecting plates (33) are respectively connected to two ends of the lower side of the flying wing beam body (31), the flying wing beam lower connecting plates (33) are L-shaped plates and are respectively connected to the lower side and one end side of the flying wing beam body (31), and connecting holes corresponding to standard mounting holes (14) on the groove-shaped longitudinal beam body (1) are distributed on the flying wing beam lower connecting plates (33) and are used for detachably connecting with the groove-shaped longitudinal beam body (1) through connecting pieces.
9. A modular frame assembly according to any one of claims 3 to 6, wherein the tail boom assembly module (4) is an integral stamping structure, and comprises a tail boom body portion (41) and connecting portions (42) vertically arranged at four corners of the tail boom body portion (41), wherein connecting holes corresponding to standard mounting holes (14) on the groove-shaped longitudinal beam body (1) are distributed on the connecting portions (42) and are used for detachably connecting with the groove-shaped longitudinal beam body (1) through connecting pieces.
10. A dump vehicle comprising the modular frame assembly of any one of claims 3 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510156436.8A CN120039311A (en) | 2025-02-12 | 2025-02-12 | Matrix type installation Kong Chejia longitudinal beam, modularized frame assembly and dump truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510156436.8A CN120039311A (en) | 2025-02-12 | 2025-02-12 | Matrix type installation Kong Chejia longitudinal beam, modularized frame assembly and dump truck |
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| CN120039311A true CN120039311A (en) | 2025-05-27 |
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| CN202510156436.8A Pending CN120039311A (en) | 2025-02-12 | 2025-02-12 | Matrix type installation Kong Chejia longitudinal beam, modularized frame assembly and dump truck |
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