A side panel assembly for a dump truck bed and a lightweight dump truck bed

Abstract

The utility model provides a kind of for the side plate assembly of dump truck body and lightweight dump truck body, it is related to dump truck body field, the scheme using is as follows: including side plate, the upper portion of side plate is provided with crossbeam, along the advancing direction of car, the rear portion of side plate is provided with rear stand, further include: reinforcing plate, the reinforcing plate uses corrugated board, the reinforcing plate is connected with the inner surface of side plate, the rear end of reinforcing plate is connected with the rear stand;Baffle, the baffle is set in the lower portion of side plate, the baffle includes connecting portion one and flow guide portion, connecting portion one is connected with the lower portion of side plate, the flow guide portion is arc surface structure.The utility model can improve the strength of aluminium alloy material body.

Description

Technical Field

[0001] This utility model relates to the field of dump truck bodies, and in particular to a side plate assembly for a dump truck body and a lightweight dump truck body. Background Technology

[0002] Most dump truck bodies currently use a rectangular or U-shaped structure. The dump truck body consists of five parts: a front panel, symmetrical side panels, a rear panel, and a bottom panel. The strength of the cargo box is improved by welding reinforcing ribs to these five parts. However, the increased amount of welding on the body makes it prone to thermal deformation, increases welding costs, increases the weight of the cargo box itself, and reduces the cargo box volume.

[0003] In the prior art, Chinese utility model patent CN219044300U provides a light-duty dump truck body for multiple working conditions, which includes a side plate assembly. The side plate assembly includes a vertical side plate body, a front column, and a rear column. The front column is located at the front end of the side plate body, and the rear column is located at the rear end of the side plate body. The upper and lower ends of the side plate body are provided with integrally stamped crossbeams, and several vertical beams I are provided between the upper and lower ends of the crossbeams. The vertical beams I are welded to the side plate body, and the crossbeams are integrally stamped on the side plate body. In order to facilitate loading and unloading of goods, inclined guide plates are provided on the inner side of the connection between the side plate body and the bottom plate body.

[0004] With the increasing demand for lightweight vehicle design, some commercial vehicles use aluminum alloy instead of steel plates to manufacture the cargo box in order to reduce weight. Although the strength can be enhanced by setting multiple vertical beams I when adopting the above technical solution, the vertical beams I are made of aluminum alloy and multiple vertical beams I are arranged at intervals. As a result, there are still problems such as insufficient strength of the box structure and poor resistance to deformation. This makes it difficult to guarantee the overall strength of the box structure and greatly reduces its reliability. Utility Model Content

[0005] In order to solve the technical problem of insufficient strength of the side plate assembly of the truck body in the prior art, the present invention provides a side plate assembly for dump truck bodies and a lightweight dump truck body, which can improve the strength of the aluminum alloy truck body.

[0006] In a first aspect, this utility model provides a side panel assembly for a dump truck body to solve the above-mentioned technical problems. The assembly includes a side panel with a crossbeam at its upper part along the vehicle's forward direction and a rear column at its rear. It also includes a reinforcing plate made of corrugated board, connected to the inner surface of the side panel, and its rear end connected to the rear column; and a flow guide plate disposed at the lower part of the side panel, comprising a connecting part and a flow guide part, the connecting part being connected to the lower part of the side panel, and the flow guide part having an arc-shaped structure.

[0007] This invention utilizes the corrugated plate's wave-shaped structure to disperse stress, forming a truss-like mechanical support. Compared to multiple dispersed vertical beams, it can more effectively resist loads inside and outside the carriage, while avoiding localized stress concentration caused by welding of vertical beams. This further enhances the carriage's resistance to torsion and deformation. Furthermore, the arc-shaped flow guide section guides materials to the center of the carriage, improving the integration level of the side plate assembly and increasing the carriage's assembly efficiency.

[0008] Furthermore, the side plate is welded to the connecting part one, and the top of the connecting part one is provided with a plug groove, and the lower part of the side plate extends into the plug groove.

[0009] This invention achieves pre-positioning of the side plate and the guide plate through the insertion slot, thereby improving the accuracy of welding.

[0010] Furthermore, a reinforcing rib is provided on one outer surface of the connecting part.

[0011] Furthermore, it also includes a reinforcing skirt, which is a bent structure. The reinforcing skirt is located at the lower part of the side plate, and is arranged parallel to the crossbeam. The rear end of the reinforcing skirt is connected to the lower part of the rear column.

[0012] This invention enhances the torsional and deformation resistance of the side plate assembly by setting a reinforcing skirt with a bending structure.

[0013] Furthermore, the reinforcing skirt includes an upper bend, a transition section, and a lower bend. The cross-section of the upper bend has a <-shaped structure. The transition section is a vertically arranged plate-like structure. The lower bend includes a first part and a second part. The first part is connected to the lower part of the transition section. The first part is inclined downwards, and the second part is vertically arranged.

[0014] This invention utilizes a multi-segment bending structure, resulting in a larger moment of inertia and stronger resistance to bending deformation. At the same time, it can distribute the stress to a larger cross-sectional area, reducing local stress concentration and resisting complex loads.

[0015] Furthermore, a locking block is provided at the top of the upper bending portion, which can extend into the limiting groove on the outer side of the connecting portion one. A connecting plate is horizontally provided on the inner side of the connection between the upper bending portion and the transition portion. The guide plate also includes a second connecting portion, which is provided on the guide portion at one end away from the first connecting portion. A limiting rib is provided on the outer surface of the second connecting portion. The end of the connecting plate abuts against the limiting rib. The connecting plate is welded to the second connecting portion.

[0016] This invention utilizes the limiting groove and limiting rib to pre-position the reinforcing skirt, thereby improving the welding accuracy between the reinforcing skirt and the guide plate.

[0017] Furthermore, the transition section is provided with a lamp mounting hole, and the inner surface of the transition section is provided with a mounting groove for mounting the lamp wiring harness.

[0018] This utility model enhances the decorative function of the skirt by using lamp mounting holes and mounting grooves.

[0019] Furthermore, a groove is provided at the lower end of the lower bend, and a dustproof brush strip is provided in the groove.

[0020] This utility model incorporates a dustproof brush strip, which enables the reinforced skirt to have a dustproof function.

[0021] Secondly, this utility model also provides a lightweight dump truck body, including a floor assembly and a front panel assembly. The floor assembly includes a floor plate, and the front panel assembly includes a front panel. A lifting frame is provided on the inner surface of the front panel. The front panel and the lifting frame are both connected to the floor plate. It also includes two side panel assemblies as described above. The two crossbeams, two reinforcing skirts, and two reinforcing plates are all connected to the front panel. The connecting part includes a stepped part. The upper surface of the stepped part is lower than the guide part. The stepped part is connected to the floor plate. The front panel assembly, the floor assembly, and the side panel assemblies are all made of aluminum alloy profiles.

[0022] This invention creates a stepped surface at two points in the connection, allowing the base plate and the guide plate to overlap, which facilitates welding and improves welding quality.

[0023] Furthermore, a reinforcing beam is provided at the lower part of the base plate. The reinforcing beam is a hollow structure and has at least two reinforcing ribs inside.

[0024] This invention improves the bending and torsional strength of the reinforcing beam by setting a reinforcing beam with reinforcing ribs, thereby improving the strength of the car body.

[0025] As can be seen from the above technical solutions, this utility model has the following advantages: This invention provides a side plate assembly for a dump truck body and a lightweight dump truck body. The corrugated plate's wave-shaped structure disperses stress, forming a truss-like mechanical support. Compared to multiple dispersed vertical beams, this more effectively resists internal and external loads within the truck body, while avoiding localized stress concentration caused by vertical beam welding. This further enhances the truck body's resistance to torsion and deformation. Furthermore, the arc-shaped guide section directs material flow to the center of the truck body, improving the integration level of the side plate assembly and increasing assembly efficiency. Insert slots allow for pre-positioning of the side plate and guide plate, improving welding accuracy. The addition of a bent reinforcing skirt further enhances the side plate assembly's resistance to torsion and deformation. The multi-segment bending structure results in a larger moment of inertia and stronger resistance to bending deformation. Simultaneously, it disperses stress over a larger cross-sectional area, reducing localized stress concentration and resisting complex loads. The limiting grooves and ribs enable pre-positioning of the reinforcing skirt, improving the welding precision between the reinforcing skirt and the deflector. The lamp mounting holes and grooves integrate a decorative function into the reinforcing skirt. Dustproof brush strips provide dust protection. Stepped surfaces at two connection points allow the base plate and deflector to overlap, facilitating welding and improving welding quality. The reinforcing beams with reinforcing ribs enhance their bending and torsional strength, thereby increasing the overall strength of the vehicle body. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this utility model, the drawings used in the description 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.

[0027] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0028] Figure 2 for Figure 1 Enlarged view of section B in the middle.

[0029] Figure 3 for Figure 1 Enlarged view of a section at point C.

[0030] Figure 4 This is a schematic diagram of the guide plate in a specific embodiment of the present invention.

[0031] Figure 5 This is a schematic diagram of the reinforcing skirt in a specific embodiment of this utility model.

[0032] Figure 6 This is a structural schematic diagram of the second specific embodiment of the present utility model. Figure 1 .

[0033] Figure 7 This is a structural schematic diagram of the second specific embodiment of the present utility model. Figure 2 .

[0034] Figure 8 This is a structural schematic diagram of the second specific embodiment of the present utility model. Figure 3 .

[0035] Figure 9 for Figure 8 Enlarged view of a section at point D.

[0036] In the diagram, 1. Crossbeam; 3. Guide plate; 301. Insertion groove; 302. Connection part one; 303. Reinforcing rib; 304. Limiting groove; 305. Guide part; 306. Limiting rib; 307. Connection part two; 308. Step part; 4. Reinforcing skirt; 401. Upper bend part; 402. Transition part; 403. Lower bend part; 4031. Part one; 4032. Part two; 404. Locking block; 405. Connecting plate; 406. Mounting groove; 407. Groove; 5. Base plate; 6. Reinforcing beam; 8. Front plate; 9. Side plate; 10. Reinforcing plate; 11. Rear column; 12. Dustproof brush strip; 13. Lighting fixture mounting hole; 16. Lifting frame. Detailed Implementation

[0037] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent. Specific Implementation Method 1 like Figure 1 and Figure 7As shown, this specific embodiment provides a side panel assembly for a dump truck body, including a side panel 9, a crossbeam 1, a rear column 11, and a guide plate 3; the crossbeam 1 is horizontally arranged on the upper part of the side panel 9, and the crossbeam 1 is welded to the side panel 9. Along the forward direction of the vehicle, the rear column 11 is welded to the rear part of the side panel 9. The reinforcing plate 10 is made of corrugated plate, and the reinforcing plate 10 is arranged on the inner side of the side panel 9. The reinforcing plate 10 is welded to the inner surface of the side panel 9. The rear of the reinforcing plate 10... The end is also connected to the rear column 11. The weld seam on the reinforcing plate 10 is located around the reinforcing plate 10. The guide plate 3 is set at the lower part of the side plate 9 to guide the material to the bottom of the carriage and prevent the material from accumulating at the side plate assembly. In this specific embodiment, the guide plate 3 includes a connecting part 302 and a guide part 305. The connecting part 302 is located on the upper part of the guide part 305. The connecting part 302 is connected to the lower part of the side plate 9. The guide part 305 has an arc surface structure.

[0039] This specific embodiment utilizes the corrugated plate's wave-shaped structure to disperse stress, forming a truss-like mechanical support. Compared to multiple dispersed vertical beams, it can more effectively resist loads inside and outside the carriage, while avoiding localized stress concentration caused by welding of vertical beams. This further enhances the carriage's resistance to torsion and deformation. Furthermore, the arc-shaped guide section 305 guides materials to the center of the carriage, improving the integration level of the side panel assembly and increasing the carriage's assembly efficiency.

[0040] like Figure 2 and Figure 4 As shown, in this specific embodiment, the side plate 9 is welded to the connecting part 302. To improve the welding accuracy of the guide plate 3 and the side plate 9, the top of the connecting part 302 is provided with an insertion groove 301, and the lower part of the side plate 9 extends into the insertion groove 301. The insertion groove 301 is used to achieve the pre-positioning of the side plate 9 and the guide plate 3, thereby improving the welding accuracy. To enhance the strength of the guide plate 3, the outer surface of the connecting part 302 is provided with reinforcing ribs 303. The guide plate 3 also includes a connecting part 307, which is located on the guide part 305 at one end away from the connecting part 302. In this specific embodiment, the guide plate 3 is a stamped integrated structure.

[0041] like Figure 1 and Figure 5As shown, to further enhance the strength of the side plate assembly, this specific embodiment also includes a reinforcing skirt 4. The reinforcing skirt 4 is a bent structure, located at the lower part of the side plate 9, and is arranged parallel to the crossbeam 1. The rear end of the reinforcing skirt 4 is connected to the lower part of the rear column 11. Furthermore, the reinforcing skirt 4 includes an upper bent portion 401, a transition portion 402, and a lower bent portion 403. The cross-section of the upper bent portion 401 is a <-shaped structure. The transition portion 402 is a vertically arranged plate-like structure. The lower bent portion 403 includes a first portion 4031 and a second portion 4032. The first portion 4031 is connected to the lower part of the transition portion 402. The first portion 4031 is inclined downwards, and the second portion 4032 is vertically arranged. With this arrangement, the reinforcing skirt 4 has a multi-segment bent structure, a larger moment of inertia, and a stronger ability to resist bending deformation. At the same time, it can distribute the force to a larger cross-sectional area, reduce local stress concentration, and resist complex loads.

[0042] like Figure 2 , Figure 4 and Figure 5 As shown, the reinforcing skirt 4 is welded to the guide plate 3. To improve welding accuracy, a locking block 404 is provided at the top of the upper bending portion 401. A limiting groove 304 is provided on the outer side of the connecting portion 302. The locking block 404 can extend into the limiting groove 304 on the outer side of the connecting portion 302. A connecting plate 405 is horizontally provided on the inner side of the connection between the upper bending portion 401 and the transition portion 402. A limiting rib 306 is provided on the outer surface of the connecting portion 307. The connecting plate 405... The end of the connecting plate 405 abuts against the limiting rib 306, and the connecting plate 405 is welded to the connecting part 307. When installing the reinforcing skirt 4, the reinforcing skirt 4 is first inserted from one side of the guide plate 3, so that the locking block 404 is inserted into the limiting groove 304, and the end of the connecting plate 405 abuts against the limiting rib 306. Under the action of the limiting groove 304 and the limiting rib 306, the position of the reinforcing skirt 4 and the guide plate 3 is determined, and then the connecting plate 405 is welded to the connecting part 307.

[0043] like Figure 6 As shown in this specific embodiment, the transition portion is provided with a lamp mounting hole 13, the inner surface of the transition portion 402 is provided with a mounting groove 406, the mounting groove 406 is used to install the lamp wiring harness, the lower end of the lower bend portion 403 is provided with a groove 407, the groove 407 is provided with a dustproof brush strip 12; by providing the lamp mounting hole 13 and the dustproof brush strip 12, the reinforcing skirt 4 has a decorative and dustproof function, which increases the function of the reinforcing skirt 4 and facilitates the overall vehicle installation layout. Specific Implementation Method Two like Figures 6 to 8As shown, this specific embodiment provides a lightweight dump truck body, including a floor assembly and a front panel assembly. The floor assembly includes a floor plate 5, and the front panel assembly includes a front panel 8. A lifting frame 16 is provided on the inner surface of the front panel 8. The bottoms of the front panel 8 and the lifting frame 16 are welded to the floor plate 5. It also includes two side panel assemblies according to the first embodiment. The front parts of the two crossbeams 1, the front parts of the two reinforcing skirts 4, and the front ends of the two reinforcing plates 10 are all welded to the front panel 8. To facilitate the welding connection between the floor plate 5 and the side panel assembly, the second connecting part 307 includes a stepped part 308. The upper surface of the stepped part 308 is lower than the guide part 305. The stepped part 308 is connected to the floor plate 5. In this specific embodiment, the front panel assembly, the floor assembly, and the side panel assembly are all made of high-strength aluminum alloy profiles.

[0045] like Figures 7 to 9 As shown in this specific embodiment, two reinforcing beams 6 are provided at the lower part of the base plate 5. The reinforcing beams 6 are hollow structures, and at least two reinforcing ribs 303 plates are provided inside the reinforcing beams 6. In this specific embodiment, the two reinforcing ribs 303 plates are provided to divide the interior of the reinforcing beams 6 into multiple chambers. After this arrangement, the bending and torsional strength of the reinforcing beams 6 can be improved, thereby improving the strength of the car body.

[0046] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. The corrugated plate’s wave-shaped structure can disperse stress and form a truss-like mechanical support. Compared with multiple dispersed vertical beams, it can more effectively resist the load inside and outside the car body, while avoiding local stress concentration caused by welding of vertical beams. This further improves the car body’s resistance to torsion and deformation. In addition, the arc-shaped flow guide 305 can guide the material to the middle of the car body, improve the integration level of the side plate assembly, and improve the assembly efficiency of the car body. 2. The pre-positioning of the side plate 9 and the guide plate 3 is achieved by the insertion slot 301, which improves the accuracy of welding; the strengthening skirt 4 with a bending structure is set to enhance the torsional and deformation resistance of the side plate assembly. 3. Through the multi-segment bending structure, the moment of inertia is larger, the ability to resist bending deformation is stronger, and at the same time, the stress can be distributed to a larger cross-sectional area, reducing local stress concentration and resisting complex loads. 4. Through the function of the limiting groove 304 and the limiting rib 306, the reinforcing skirt 4 can be pre-positioned, thereby improving the welding accuracy between the reinforcing skirt 4 and the guide plate 3. 5. The reinforcing skirt 4 integrates decorative functions through the lamp mounting holes 13 and mounting grooves 406; the reinforcing skirt 4 has a dustproof function through the installation of dustproof brush strips 12. 6. By setting a step 308 at the second connection 307, the bottom plate 5 and the guide plate 3 form an overlapping structure, which facilitates welding and improves welding quality; 7. By setting up a reinforcing beam 6 with a reinforcing rib 303 plate, the bending and torsional strength of the reinforcing beam 6 can be improved, thereby improving the strength of the car body.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A side panel assembly for a dump truck body, comprising a side panel (9), wherein a crossbeam (1) is provided on the upper part of the side panel (9) along the forward direction of the vehicle, and a rear pillar (11) is provided at the rear part of the side panel (9), characterized in that, Also includes: The reinforcing plate (10) is made of corrugated board. The reinforcing plate (10) is connected to the inner surface of the side plate (9). The rear end of the reinforcing plate (10) is connected to the rear column (11). The guide plate (3) is disposed at the lower part of the side plate (9). The guide plate (3) includes a connecting part (302) and a guide part (305). The connecting part (302) is connected to the lower part of the side plate (9), and the guide part (305) has an arc surface structure.

2. The side panel assembly for a dump truck body as described in claim 1, characterized in that, The side plate (9) is welded to the connecting part (302), and the top of the connecting part (302) is provided with a plug groove (301), and the lower part of the side plate (9) extends into the plug groove (301).

3. The side panel assembly for a dump truck body as described in claim 2, characterized in that, The outer surface of the connecting part (302) is provided with reinforcing ribs (303).

4. The side panel assembly for a dump truck body as described in claim 3, characterized in that, It also includes a reinforcing skirt (4), which is a bent structure. The reinforcing skirt (4) is located at the lower part of the side plate (9). The reinforcing skirt (4) is arranged parallel to the crossbeam (1). The rear end of the reinforcing skirt (4) is connected to the lower part of the rear column (11).

5. The side panel assembly for a dump truck body as described in claim 4, characterized in that, The reinforcing skirt (4) includes an upper bend (401), a transition section (402), and a lower bend (403). The upper bend (401) has a <-shaped cross-section. The transition section (402) is a vertically arranged plate-like structure. The lower bend (403) includes a first part (4031) and a second part (4032). The first part (4031) is connected to the lower part of the transition section (402). The first part (4031) is inclined downwards, and the second part (4032) is vertically arranged.

6. The side panel assembly for a dump truck body as described in claim 5, characterized in that, The top of the upper bending part (401) is provided with a locking block (404), which can extend into the limiting groove (304) on the outside of the connecting part one (302). A connecting plate (405) is horizontally provided on the inner side of the connection between the upper bending part (401) and the transition part (402). The guide plate (3) also includes a connecting part two (307). The connecting part two (307) is provided on the guide part (305) at one end away from the connecting part one (302). The outer surface of the connecting part two (307) is provided with a limiting rib (306). The end of the connecting plate (405) abuts against the limiting rib (306). The connecting plate (405) is welded to the connecting part two (307).

7. The side panel assembly for a dump truck body as described in claim 6, characterized in that, The transition section (402) is provided with a lamp mounting hole (13), and the inner surface of the transition section (402) is provided with a mounting groove (406), which is used to install the lamp wiring harness.

8. The side panel assembly for a dump truck body as described in claim 7, characterized in that, The lower end of the lower bend (403) is provided with a groove (407), and the groove (407) is provided with a dustproof brush strip (12).

9. A lightweight dump truck body, comprising a floor assembly and a front panel assembly, wherein the floor assembly comprises a floor plate (5), the front panel assembly comprises a front panel (8), a lifting frame (16) is provided on the inner surface of the front panel (8), and both the front panel (8) and the lifting frame (16) are connected to the floor plate (5), characterized in that, It also includes two side plate assemblies as described in claim 8, the two crossbeams (1), the two reinforcing skirts (4) and the two reinforcing plates (10) are all connected to the front plate (8), the second connecting part (307) includes a stepped part (308), the upper surface of the stepped part (308) is lower than the guide part (305), the stepped part (308) is connected to the bottom plate (5), and the front plate assembly, the bottom plate assembly and the side plate assembly are all made of aluminum alloy profiles.

10. The lightweight dump truck body as described in claim 9, characterized in that, The bottom plate (5) is provided with a reinforcing beam (6) at the bottom. The reinforcing beam (6) is a hollow structure and has at least two reinforcing ribs (303) plates inside.

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