Dumper cross member assembly and frame

Abstract

The utility model provides a kind of self-unloading car crossbeam assembly and frame, above-mentioned crossbeam assembly, including crossbeam, including main part and two extension parts connected in the both ends of the main part;The main part includes upper wing plate, the lower wing plate opposite with the upper wing plate, front side plate and rear side plate connected between the upper wing plate and the lower wing plate, the rear side plate is oppositely arranged with the front side plate, the upper wing plate, the lower wing plate, the front side plate and the rear side plate are enclosed to form box beam structure;Two the extension part is connected in the both ends of the upper wing plate respectively, and it is integral structure with the upper wing plate;Suspension cylinder support, two are provided, two the suspension cylinder support is respectively connected with two the extension part one-to-one correspondence.The utility model embodiment is more stable in stress, improves strength and rigidity, prevents crossbeam cracking.

Description

Technical Field

[0001] This utility model relates to the field of mining dump truck technology, and in particular to a dump truck crossbeam assembly and frame. Background Technology

[0002] Mining dump trucks are core equipment in open-pit mine transportation, used for transporting rock and soil stripping and ore. Existing mining dump trucks operate under harsh conditions for extended periods. Mining roads are rugged and uneven, and vehicles frequently bear impact loads and alternating stresses. Furthermore, continuous operation places extremely high demands on the fatigue resistance of the chassis structure. As the core load-bearing component of the mining dump truck, the reliability of the chassis directly determines the vehicle's service life and operational safety. Among these components, the middle and rear axle crossbeams are crucial structures connecting the chassis and suspension system, bearing the core functions of distributing loads and coordinating movement. The upper and lower flanges, as major stress areas, have led to frequent cracking of the crossbeams under high-intensity operation over long periods. Utility Model Content

[0003] In order to improve at least some of the shortcomings or deficiencies in the prior art, embodiments of the present invention provide a dump truck crossbeam assembly and frame, which are more stable under stress, improve strength and rigidity, and prevent crossbeam cracking.

[0004] On one hand, the present invention provides a dump truck crossbeam assembly, including a crossbeam comprising a main body and two extensions connected to both ends of the main body; the main body includes an upper wing plate, a lower wing plate opposite to the upper wing plate, a front side plate and a rear side plate connected between the upper wing plate and the lower wing plate, the rear side plate being disposed opposite to the front side plate, the upper wing plate, the lower wing plate, the front side plate and the rear side plate forming a box beam structure; the two extensions are respectively connected to both ends of the upper wing plate and are integral with the upper wing plate; two cylinder brackets are provided, and the two cylinder brackets are respectively connected to the two extensions one by one.

[0005] In some embodiments, the main body further includes a connecting assembly, which includes two first connectors disposed at both ends of the front side panel and two second connectors disposed at both ends of the rear side panel. Each first connector is equipped with a first reinforcing plate, and each second connector is equipped with a second reinforcing plate.

[0006] In some embodiments, each of the cylinder suspension brackets includes two symmetrically arranged mounting plates. The two mounting plates of each cylinder suspension bracket, the corresponding extension of the cylinder suspension bracket, and the main body together enclose an installation space. The distance between the ends of the two mounting plates of each cylinder suspension bracket that are closer to the upper wing plate is less than the distance between the other ends of the two mounting plates that are closer to the lower wing plate.

[0007] In some embodiments, each mounting plate includes a first mounting segment, a second mounting segment, and a third mounting segment connected in sequence; the first mounting segment is disposed near the upper wing plate, the third mounting segment is disposed near the lower wing plate, the second mounting segment is perpendicularly connected to the first mounting segment and the third mounting segment respectively, the first mounting segment and the third mounting segment are disposed parallel to each other and located in different planes; the distance between the two first mounting segments of each suspension cylinder bracket is less than the distance between the two third mounting segments.

[0008] In some embodiments, in each of the suspension cylinder brackets, one of the two first mounting segments is parallel to the front side plate and lies in the same plane, and the other of the two first mounting segments is parallel to the rear side plate and lies in the same plane.

[0009] In some embodiments, in each of the cylinder suspension brackets, one of the two third mounting segments is parallel to the first reinforcing plate and lies in the same plane, and the other of the two third mounting segments is parallel to the second reinforcing plate and lies in the same plane.

[0010] In some embodiments, the first mounting section has a mounting hole for mounting a suspension cylinder, and the suspension cylinder bracket is connected to the suspension cylinder through the mounting hole.

[0011] In some embodiments, the main body has an air duct hole that penetrates the main body.

[0012] In some embodiments, the main body portion is provided with a conduit hole that penetrates the main body portion.

[0013] On the other hand, another embodiment of the present invention provides a dump truck frame for child labor, comprising: two longitudinal beams arranged symmetrically and parallel to each other, each longitudinal beam having a first end and a second end opposite to the first end; two crossbeam assemblies connected between the two longitudinal beams, the two crossbeam assemblies arranged sequentially and close to the second end; wherein the main body is disposed between the two longitudinal beams, and the two extensions are correspondingly disposed on the outer sides of the two longitudinal beams.

[0014] As can be seen from the above, the above-mentioned technical features of this utility model can have one or more of the following beneficial effects: the crossbeam includes a main body and an extension, the main body is configured as a box beam structure, which has high strength and rigidity, and the internal cavity can effectively resist external forces such as bending and torsion, preventing the crossbeam from cracking; the upper flange of the main body and the extension are an integral structure, which is not easy to crack. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a structural schematic diagram of a dump truck crossbeam assembly provided in the first embodiment of the present utility model.

[0017] Figure 2 for Figure 1 This is a structural schematic diagram of a dump truck crossbeam assembly from another perspective.

[0018] Figure 3 for Figure 1 The diagram shows a structural schematic of a dump truck crossbeam assembly from another perspective.

[0019] Figure 4 for Figure 1 The diagram shows a structural schematic of a mounting plate in a dump truck crossbeam assembly.

[0020] Figure 5 for Figure 3 A cross-sectional view at point D-D' along the middle.

[0021] Figure 6 for Figure 3 A cross-sectional view along the middle section E-E'.

[0022] Figure 7 for Figure 3 A cross-sectional view along the middle F-F'.

[0023] Figure 8 This is a structural schematic diagram of a dump truck frame provided in the second embodiment of the present invention.

[0024] Figure label:

[0025] 1. Crossbeam assembly; 2. Chassis;

[0026] 10. Crossbeam; 110. Main body; 111. Upper wing plate; 112. Lower wing plate; 113. Front side plate; 114. Rear side plate; 115. First connecting piece; 116. Second connecting piece; 117. First reinforcing plate; 118. Second reinforcing plate; 120. Extension; 130. Air duct hole; 140. Pipeline hole; 20. Cylinder suspension bracket; 210. Mounting plate; 211. First mounting section; 212. Second mounting section; 213. Third mounting section; 214. Reinforcing rib; 220. Mounting space; 230. Mounting hole; 30. Longitudinal beam; 310. First end; 320. Second end. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] [First Embodiment]

[0029] See Figure 1 , Figure 2 and Figure 3 This utility model provides a dump truck crossbeam assembly 1, including a crossbeam 10 and a suspension cylinder bracket 20. The crossbeam 10 includes a main body 110 and two extensions 120 connected to both ends of the main body 110. The main body 110 includes an upper wing plate 111, a lower wing plate 112 opposite to the upper wing plate 111, a front side plate 113 and a rear side plate 114 connected between the upper wing plate 111 and the lower wing plate 112. The rear side plate 114 is arranged opposite to the front side plate 113. The upper wing plate 111, the lower wing plate 112, the front side plate 113 and the rear side plate 114 form a box beam structure. The two extensions 120 are respectively connected to both ends of the upper wing plate 111 and are integral with the upper wing plate 111. The extensions 120 and the upper wing plate 111 are not prone to cracking. The main body 110 may be, for example, the main structural part of the crossbeam 10, and the extension 120 may be, for example, a protruding plate extending outward from the main body 110. The aforementioned box girder structure is, for example, a closed box-shaped structure formed by welding or riveting a top plate, a bottom plate, and two side webs. Its cross-section is typically rectangular or square, with an internal cavity. This hollow design reduces weight, while internal reinforcement (such as longitudinal diaphragms and transverse stiffening ribs) improves resistance to deformation. Due to its closed cross-sectional shape, the box girder structure has high bending and torsional stiffness, capable of withstanding large bending moments and torques. Under the same load, the box girder deforms less, resulting in a more stable structure, making it suitable for engineering structures requiring high load-bearing capacity and high stiffness.

[0030] Two cylinder mounts 20 are provided, each connected to one of the two extensions 120. The cylinder mounts 20 are used to install and support components such as the suspension cylinders, which generate significant forces during operation. By connecting to the box girder crossbeam 10, the load on the cylinder mount 20 can be evenly transferred to the crossbeam 10 and further distributed throughout the entire frame 2 structure, avoiding localized stress concentration. This results in a more reasonable load distribution within the vehicle structure, improving its load-bearing capacity and service life. For example, each cylinder mount 20 and its corresponding extension 120 are integrally formed, making the connection between the cylinder mount 20 and the crossbeam 10 more robust and reliable, significantly improving overall load-bearing capacity, bending and torsional stiffness, and reducing cracking. Furthermore, the crossbeam 10 and the cylinder mount 20 can be welded together, forming a single integral structure that significantly improves the overall structural stiffness and strength.

[0031] Because the crossbeams of existing dump truck frames generally adopt an I-beam structure, the upper and lower flanges and front and rear webs are prone to local buckling under torque due to their cross-sectional shape, resulting in relatively low torsional stiffness. Furthermore, the connection between the flanges and webs is a stress concentration point, making them susceptible to cracking. This application addresses this by designing the main body 110 of the crossbeam 10 as a box-beam structure. The integrity and overall structure of the box-beam interface better accommodates complex loads, resulting in a more uniform stress distribution among the plates, reducing the risk of excessive local stress, and providing greater stability under load. It also possesses high strength and stiffness, and the internal cavity effectively resists bending and torsion, preventing cracking of the crossbeam 10. During dump truck operation, the crossbeam 10 is subjected to forces from vehicle loads, driving bumps, and other factors. The box-beam structure enhances the load-bearing capacity of the crossbeam 10, ensuring the safety and stability of the vehicle under various operating conditions. Compared to an I-beam structure, the box-beam structure of this application is less prone to deformation.

[0032] See Figure 1 and Figure 2In some embodiments, the main body 110 further includes a connecting assembly, which includes two first connectors 115 disposed at both ends of the front side plate 113 and two second connectors 116 disposed at both ends of the rear side plate 114. Each first connector 115 has a first reinforcing plate 117 installed inside, and each second connector 116 has a second reinforcing plate 118 installed inside. The crossbeam 10 is welded to the longitudinal beam 30, for example, through the first connectors 115 and the second connectors 116, to form a rigid frame, effectively transmitting vertical loads and traction forces. The first reinforcing plates 117 and the second reinforcing plates 118 are, for example, transverse ribs, which can enhance the bending and torsional resistance of the crossbeam 10, disperse stress, share the force of the first connectors 115 and the second connectors 116, and enhance the rigidity of the first connectors 115 and the second connectors 116.

[0033] See Figure 1 and Figure 2 In some embodiments, each cylinder suspension bracket 20 includes two symmetrically arranged mounting plates 210. The two mounting plates 210 of each cylinder suspension bracket 20, the correspondingly connected extension 120 of the cylinder suspension bracket 20, and the main body 110 together enclose a mounting space 220, which is used to accommodate the suspension cylinder. The distance d1 between the ends of the two mounting plates 210 of each cylinder suspension bracket 20 near the upper flange 111 is (e.g., ...). Figure 6 The distance d2 between the two mounting plates 210 and the other end of the lower flange 112 is less than the distance between them. Figure 6 The cylinder bracket 20 has a narrow top and wide bottom structure, meaning the installation space 220 forms a narrow top and wide bottom space. The end near the upper flange 111 facilitates the installation of fasteners such as pins for mounting the suspension cylinder, while the end near the lower flange 112 prevents the mounting plate 210 from interfering with or colliding with the rear suspension cylinder, thereby improving the strength of the cylinder bracket 20.

[0034] Existing mining dump trucks typically use a flat-plate suspension design. This design results in a long pin span, causing the pin to experience a large bending moment under vertical loads. This indirectly increases the stress at the welded joints, making them prone to breakage. This embodiment uses a non-flat-plate design, specifically by reducing the distance between the ends of the two mounting plates 210 closest to the upper flange 111, thus shortening the pin span between the two mounting plates 210 and reducing the bending moment on the pin.

[0035] See Figure 2 , Figure 4 and Figure 6In some embodiments, each mounting plate 210 includes a first mounting segment 211, a second mounting segment 212, and a third mounting segment 213 connected in sequence; the first mounting segment 211 is disposed near the upper wing plate 111, the third mounting segment 213 is disposed near the lower wing plate 112, and the second mounting segment 212 is perpendicularly connected to the first mounting segment 211 and the third mounting segment 213 respectively; the first mounting segment 211 and the third mounting segment 213 are arranged in parallel and located in different planes; the first mounting segment 211 is, for example, a... Figure 6 The horizontal segment shown, the second mounting segment 212 and the third mounting segment 213 are, for example, Figure 6 The vertical section perpendicular to the horizontal section, namely the mounting plate 210, forms a "Z"-shaped structure. The multi-directional bending of the "Z" shape forms a three-dimensional support, which can effectively resist torsional loads and prevent the cylinder bracket 20 from twisting and deforming when the dump truck turns or tilts.

[0036] The distance d1 between the two first mounting sections 211 of each cylinder bracket 20 (e.g.) Figure 6 Less than two third installation segments 213d2 (e.g.) Figure 7 The distance between the first mounting sections 211 and the second mounting section 212 is considered. For example, the upper end of the suspension cylinder is equipped with a mounting component. The suspension cylinder is connected to the mounting component via a pin and then installed between the two first mounting sections 211 of the suspension cylinder bracket 20. The suspension cylinder is positioned within the installation space 220, shortening the distance between the first mounting sections 211 and increasing the distance between the third mounting sections 213, thereby shortening the pin span and reducing the pin bending moment, while simultaneously providing sufficient installation space 220 for the suspension cylinder. For example, reinforcing ribs 214 are also provided on the first mounting sections 211 and the second mounting sections 212 to further enhance the structural stability and strength of the mounting plate 210.

[0037] See Figure 7 In some embodiments, in each cylinder bracket 20, one of the two first mounting sections 211 is parallel to the front side plate 113 and lies in the same plane, while the other of the two first mounting sections 211 is parallel to the rear side plate 114 and lies in the same plane. That is, one of the two first mounting sections 211 is aligned with the front side plate 113, and the other is aligned with the rear side plate 114. This allows the load to be directly transferred through the cylinder bracket 20 to the main body 110 of the crossbeam 10, forming a continuous load-bearing surface with the cylinder bracket 20 and the front and rear side plates 113 and 114 of the crossbeam 10. This increases rigidity and reduces the risk of the frame 2 twisting or deforming during bumps or cornering. Of course, in other embodiments, the centers of the two sections are aligned.

[0038] See Figure 5In some embodiments, in each cylinder bracket 20, one of the two third mounting segments 213 is parallel to and in the same plane as the first reinforcing plate 117, and the other of the two third mounting segments 213 is parallel to and in the same plane as the second reinforcing plate 118. That is, one of the two third mounting segments 213 is aligned with the first reinforcing plate 117, and the other is aligned with the second reinforcing plate 118. This forms a continuous force transmission chain between the third mounting segments 213, the first reinforcing plate 117, and the second reinforcing plate 118, improving the rigidity and strength of the structure.

[0039] See Figure 1 , Figure 2 and Figure 4 In some embodiments, the first mounting section 211 has a mounting hole 230 for mounting the suspension cylinder, and the suspension cylinder bracket 20 is connected to the suspension cylinder through the mounting hole 230. Specifically, for example, the suspension cylinder bracket 20 is connected between two mounting plates 210 by a pin passing through the mounting hole 230 on the first mounting section 211.

[0040] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the main body 110 is provided with an air duct hole 130 that penetrates the main body 110. During the operation of the dump truck, components such as the drive control cabinet will generate a lot of heat. The air duct hole 130 can guide airflow through it so that the heat can be dissipated in a timely manner.

[0041] See Figure 1 , Figure 2 and Figure 3 In some embodiments, the main body 110 is provided with a pipeline hole 140 that passes through the main body 110 for various pipelines, including hydraulic pipelines, pneumatic pipelines and electrical cables, etc. The pipeline hole 140 provides a safe and fixed channel for these pipelines, making it easy to arrange the lines and making the pipeline layout reasonable and not messy.

[0042] [Second Embodiment]

[0043] See Figure 8 The second embodiment of this utility model provides a dump truck frame 2, which includes, for example, longitudinal beams 30 and dump truck crossbeam assembly 1.

[0044] The dump truck crossbeam assembly 1 is the same as the dump truck crossbeam assembly 1 described in the first embodiment above. Two longitudinal beams 30 are provided, symmetrically and parallelly arranged. Each longitudinal beam 30 has a first end 310 and a second end 320 opposite to the first end 310. The two longitudinal beams 30 are located on both sides of the frame 2, arranged longitudinally along the vehicle. Two crossbeam assemblies 1 are provided, connected between the two longitudinal beams 30. The two crossbeam assemblies 1 are arranged sequentially and close to the second end 320. The main body 110 is located between the two longitudinal beams 30, forming the core support part of the frame 2 together with the two longitudinal beams 30, effectively resisting longitudinal and lateral deformation of the frame 2. Two extensions 120 are correspondingly positioned on the outer sides of the two longitudinal beams 30 and connected to the suspension bracket 20, further expanding the support range of the frame 2, increasing the rigidity of the frame 2 in the width direction, making the entire vehicle structure more stable, less prone to torsion or bending deformation under load, improving the stability and safety of the vehicle during driving, and reducing cracking. The first end 310 is, for example, the front end of the longitudinal beam 30, and the second end 320 is, for example, the rear end of the longitudinal beam 30.

[0045] The cross-sectional dimensions of the two longitudinal beams 30 remain constant from the first end 310 to the second end 320. The upper and lower planes of the longitudinal beams 30 are parallel to each other and maintain a constant height, making them easy to process and shape. For example, a third reinforcing plate is provided inside the longitudinal beams 30 to strengthen the main supporting longitudinal beams 30, giving them sufficient supporting force. The two crossbeams 10 are, for example, the middle bridge crossbeam and the rear bridge crossbeam.

[0046] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0047] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

Claims

1. A dump truck crossbeam assembly (1), characterized in that, include A crossbeam (10) includes a main body (110) and two extensions (120) connected to both ends of the main body (110); the main body (110) includes an upper flange (111), a lower flange (112) opposite to the upper flange (111), a front side plate (113) and a rear side plate (114) connected between the upper flange (111) and the lower flange (112), the rear side plate (114) being disposed opposite to the front side plate (113), and the upper flange (111), the lower flange (112), the front side plate (113) and the rear side plate (114) forming a box beam structure; the two extensions (120) are respectively connected to both ends of the upper flange (111) and are integral with the upper flange (111); There are two cylinder suspension brackets (20), and the two cylinder suspension brackets (20) are respectively connected to the two extensions (120).

2. The dump truck crossbeam assembly (1) as described in claim 1, characterized in that, The main body (110) also includes a connecting assembly, which includes two first connecting members (115) disposed at both ends of the front side plate (113) and two second connecting members (116) disposed at both ends of the rear side plate (114). Each first connecting member (115) is equipped with a first reinforcing plate (117), and each second connecting member (116) is equipped with a second reinforcing plate (118).

3. The dump truck crossbeam assembly (1) as described in claim 2, characterized in that, Each of the cylinder suspension brackets (20) includes two symmetrically arranged mounting plates (210). The two mounting plates (210), the corresponding extension (120) of each cylinder suspension bracket (20), and the main body (110) together enclose an installation space (220). The distance between the two mounting plates (210) of each cylinder suspension bracket (20) near the end of the upper wing plate (111) is less than the distance between the two mounting plates (210) near the other end of the lower wing plate (112).

4. The dump truck crossbeam assembly (1) as described in claim 3, characterized in that, Each mounting plate (210) includes a first mounting section (211), a second mounting section (212), and a third mounting section (213) connected in sequence; the first mounting section (211) is disposed near the upper wing plate (111), and the third mounting section (213) is disposed near the lower wing plate (112); the second mounting section (212) is perpendicularly connected to the first mounting section (211) and the third mounting section (213) respectively; the first mounting section (211) and the third mounting section (213) are disposed in parallel and located in different planes; the distance between the two first mounting sections (211) of each cylinder bracket (20) is less than the distance between the two third mounting sections (213).

5. The dump truck crossbeam assembly (1) as described in claim 4, characterized in that, In each of the cylinder brackets (20), one of the two first mounting sections (211) is parallel to the front side plate (113) and in the same plane, and the other of the two first mounting sections (211) is parallel to the rear side plate (114) and in the same plane.

6. The dump truck crossbeam assembly (1) as described in claim 4, characterized in that, In each of the cylinder support brackets (20), one of the two third mounting sections (213) is parallel to the first reinforcing plate (117) and in the same plane, and the other of the two third mounting sections (213) is parallel to the second reinforcing plate (118) and in the same plane.

7. The dump truck crossbeam assembly (1) as described in claim 4, characterized in that, The first mounting section (211) has a mounting hole (230) for mounting the suspension cylinder, and the suspension cylinder bracket (20) is connected to the suspension cylinder through the mounting hole (230).

8. The dump truck crossbeam assembly (1) as described in claim 1, characterized in that, The main body (110) has an air duct hole (130) that penetrates the main body (110).

9. The dump truck crossbeam assembly (1) as described in claim 1, characterized in that, The main body (110) is provided with a pipeline hole (140) that penetrates the main body (110).

10. A dump truck frame (2), characterized in that, include: The longitudinal beam (30) is provided in two, and the two longitudinal beams (30) are symmetrical and parallel to each other. Each longitudinal beam (30) has a first end (310) and a second end (320) opposite to the first end (310). The beam assembly (1) as described in any one of claims 1-9 is provided in two, and the two beam assemblies (1) are connected between the two longitudinal beams (30), and the two beam assemblies (1) are arranged sequentially and disposed close to the second end (320); in, The main body (110) is disposed between the two longitudinal beams (30), and the two extensions (120) are disposed on the outer sides of the two longitudinal beams (30) respectively.

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