Dump semi-trailer and dump compartment

Abstract

The present invention provides a dump semi-trailer and a dump compartment thereof. The dump compartment comprises a bottom plate and two side box plates respectively erected and fixed on both sides of the bottom plate, the side box plates comprising a box plate body, a top beam and a bottom beam; the middle portion of the box plate body protrudes outward from the dump compartment, and the bottom portion thereof is fixed to the bottom plate; the top beam extends along the upper end edge of the box plate body and is fixed to the outer side surface of the box plate body; the bottom beam extends along the lower end edge of the box plate body and is fixed to the outer side surface of the box plate body, and the outermost side surface of the bottom beam is flush with the outermost side surface of the box plate body; the bottom beam has a bottom connecting portion extending inward, and the bottom connecting portion is fixed to the bottom plate. The present invention can increase the volume of the dump compartment and improve the strength of the dump compartment.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to a dump semitrailer and a dump carriage thereof. Background Art

[0002] Dump trailers are suitable for transporting bulk goods such as coal, ore, and building materials. Dump trailers can unload goods by lifting the front end of the compartment and tipping the compartment backward. The side panels of the compartment are the main structure on both sides of the compartment, which play the role of blocking materials and increasing the strength of the compartment. The national standard stipulates that the maximum height of the inner side of the dump trailer side panel is 600 mm. The conventional side panel structure is flat inside. This structure is heavy and the internal volume of the compartment is small. If the volume needs to be increased, the length of the compartment needs to be increased, but if the compartment is too long, it will increase its own weight and increase the risk of rollover after lifting.

[0003] In some related technologies, outwardly convex side box panels are used to increase the internal volume of the compartment. However, in this structure, the cargo load borne by the bottom of the side box panels is relatively large, and higher requirements are placed on the strength of the side box panels. Summary of the invention

[0004] An object of the present invention is to provide a dump truck compartment to increase the volume of the dump truck compartment and improve the strength of the dump truck compartment.

[0005] Another object of the present invention is to provide a dump semitrailer having the above dump compartment.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a dump truck compartment, comprising a bottom plate and two side box plates respectively erected and fixed on both sides of the bottom plate, the side box plates comprising a box plate body, a top beam and a bottom beam; the middle portion of the box plate body protrudes outward from the dump truck compartment, and the bottom portion thereof is fixed to the bottom plate; the top beam extends along the upper end edge of the box plate body and is fixed to the outer side surface of the box plate body; the bottom beam extends along the lower end edge of the box plate body and is fixed to the outer side surface of the box plate body, and the outermost side surface of the bottom beam is flush with the outermost side surface of the box plate body; the bottom beam has a bottom connecting portion extending inward, and the bottom connecting portion is fixed to the bottom plate.

[0008] In some embodiments, the bottom beam is hollow inside and has an opening on the side. The opening of the bottom beam is fixed to the outer side surface of the box panel body and is closed by the outer side surface of the box panel body to form a circumferential closed structure.

[0009] In some embodiments, the bottom beam also includes a lower outer plate extending upright upward from the outer end of the bottom connecting portion and a support plate extending inward from the upper end of the lower outer plate; the opening is formed between the support plate and the bottom connecting portion; the outer side surface of the lower outer plate is flush with the outermost side surface of the box panel body.

[0010] In some embodiments, the support plate extends obliquely upward and inward from the upper end of the lower outer plate.

[0011] In some embodiments, the bottom connecting portion includes a bottom transition plate extending horizontally inward from the lower end of the lower outer plate and a bottom connecting plate extending obliquely inward and upward from the bottom transition plate; the bottom plate has a bent portion extending obliquely downward, and the bent portion is overlapped and fixed to the bottom connecting plate.

[0012] In some embodiments, the bottom of the box panel body has a lap plate extending horizontally inward, and the lap plate is overlapped and fixed to the bottom plate.

[0013] In some embodiments, the box panel body also includes an upright first side panel, a first transition panel extending downward and outward from the lower end of the first side panel, a second side panel extending downward and upright from the lower end of the first transition panel, and a second transition panel extending downward and inward from the lower end of the second side panel; the lap plate extends horizontally inward from the lower end of the second transition panel; the top beam is connected to the outer sides of the first side panel and the first transition panel; the bottom beam is connected to the outer side of the second transition panel; the outermost side surface of the top beam and the outermost side surface of the bottom beam are both flush with the outer side surface of the second side panel.

[0014] In some embodiments, the top beam includes an upright upper outer panel, a connecting plate extending obliquely downward and inward from the lower end of the upper outer panel, a top panel extending horizontally inward from the upper end of the upper outer panel, and a folding plate extending downward from the inner end of the top panel; the end of the connecting plate is connected to the outer side surface of the box panel body, and the folding plate is overlapped and fixed to the box panel body.

[0015] In some embodiments, the box plate body, the top beam, and the bottom beam are respectively formed by integrally bending a plate; and leakage holes are respectively provided on the top beam and the bottom beam.

[0016] According to another aspect of the present invention, the present invention provides a dump semi-trailer, comprising a frame and the dump compartment as described above, wherein the dump compartment is flippably mounted on the frame.

[0017] It can be seen from the above technical scheme that the present invention has at least the following advantages and positive effects: in the dump truck of the present invention, the side box plate has a box plate body with a convex middle part. Compared with the traditional flat plate structure, the side box plate of the present invention can expand the internal space of the dump truck under the condition of the same external dimensions, and correspondingly increase the volume of the dump truck. The upper and lower end edges of the outer side of the box plate body are respectively fixed with a top beam and a bottom beam, which can strengthen the box plate body. In particular, the bottom beam has a bottom connecting part extending inward, which is fixed to the bottom plate, and cooperates with the structure that the bottom of the box plate body is also fixed to the bottom plate. The bottom beam forms a closed structure at the lower end of the box plate body, which increases the structural stability, and forms a supporting effect on the lower end part of the box plate body, thereby improving the strength of the lower end part of the box plate body, and thus can improve the strength of the dump truck as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an embodiment of a dump trailer of the present invention.

[0019] Figure 2 It is a structural schematic diagram of a dump truck embodiment of the present invention.

[0020] Figure 3 yes Figure 2 AA cross-section diagram of FIG. 1 , in which the section lines are omitted.

[0021] Figure 4 yes Figure 3 Schematic diagram of the structure of the midsole plate.

[0022] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle.

[0023] Figure 6 yes Figure 5 Enlarged view of the structure of the middle box panel body.

[0024] Figure 7 yes Figure 5 Enlarged view of the structure of the midsole beam.

[0025] Figure 8 yes Figure 5 Enlarged view of the structure of the middle top beam.

[0026] The following are the descriptions of the reference numerals:

[0027] 100, dump compartment; 101, cargo compartment space; 600, frame; 601, beam; 604, traction pin; 605, walking mechanism; 606, outrigger; 700, flip seat; 800, flip drive member;

[0028] 1. Bottom plate; 11. Bottom plate body; 12. Bending part; 13. Reinforcement member;

[0029] 2. Side box panels;

[0030] 21. Box plate body; 211. First side plate; 212. First transition plate; 213. Second side plate; 214. Second transition plate; 215. Lap plate;

[0031] 22, top beam; 221, upper outer plate; 222, connecting plate; 223, top panel; 224, folding plate;

[0032] 23, bottom beam; 230, opening; 231, lower outer plate; 232, support plate; 233, bottom connecting portion; 235, bottom transition plate; 236, bottom connecting plate;

[0033] 3. Front box board; 31. Eaves;

[0034] 4. Front pillar; 5. Rear pillar. DETAILED DESCRIPTION

[0035] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0036] The present invention provides a dump truck and a dump semitrailer having the dump truck. The present invention mainly improves the side box plate structure, increases the internal volume of the dump truck, and improves the strength of the dump truck by specially designing the side box plate structure of the dump truck while meeting the standard height.

[0037] See also Figure 1 Some embodiments of the present invention provide a dump trailer. The dump trailer mainly includes a frame 600, a dump compartment 100 mounted on the frame 600, a flip seat 700 mounted at the rear end of the frame 600, and a flip driving member 800 mounted at the front end of the frame 600.

[0038] The vehicle frame 600 generally includes two longitudinally extending beams 601, a transversely extending beam (not shown in the figure), etc. A traction structure such as a traction pin 604 is generally provided at the front end of the vehicle frame 600 for connecting to a tractor. A running mechanism 605 is provided at the rear end of the vehicle frame 600. A retractable outrigger 606 is also provided near the front end of the vehicle frame 600. When the tractor is not connected, the outrigger 606 is put down to maintain the balance of the vehicle frame 600 together with the running mechanism 605. For other specific structures of the vehicle frame 600, refer to the relevant art.

[0039] The flip seat 700 has a rotatable seat body (not numbered in the figure), which supports the rear end of the dump truck 100 so that the dump truck 100 can flip relative to the frame 600.

[0040] The overturning driving member 800 may be a hydraulic or mechanical driving structure, and can overturn the dump truck 100 backward relative to the frame 600 by lifting the front end of the dump truck 100 upward, thereby facilitating the unloading of the dump truck 100 .

[0041] The other specific structures of the frame 600 , the flip seat 700 and the flip driving member 800 may refer to the relevant technology and will not be described in detail here.

[0042] The following are mainly combined Figures 2 to 8 The structure of the dump truck 100 will be described in detail.

[0043] See also Figure 2 and Figure 3 The dump truck 100 generally includes a bottom plate 1, two side box plates 2 respectively erected and fixed on both sides of the bottom plate 1, a front box plate 3 erected at the front end of the bottom plate 1, two front pillars 4 erected on both sides of the front box plate 3 and respectively connected to the side box plates 2, and a rear pillar 5 arranged on the rear side of the side box plates 2.

[0044] The bottom plate 1, the side box plates 2, and the front box plate 3 constitute the main structure of the dump truck 100, enclosing a cargo compartment space 101 for loading cargo. An openable rear door (not shown in the figure) or a tail plate (not shown in the figure) can be provided between the two rear pillars 5 to facilitate unloading. The front box plate 3 extends upward beyond the side box plates 2, and the upper end of the front box plate 3 also extends forward to form an eave 31. Figure 1 As shown, the eave edge 31 is used for lifting by the flip drive member 800.

[0045] Combination Figure 3 and Figure 4 The bottom plate 1 mainly includes a bottom plate body 11 and two bent portions 12 extending obliquely downward and outward from both sides of the bottom plate body 11. The bottom plate body 11 and the bent portions 12 are both plate-shaped, and the bent portions 12 are preferably formed by bending from the side of the bottom plate body 11. The bent portions 12 form an obtuse angle with the bottom plate body 11, and the bent portions 12 on both sides are symmetrically arranged, and the two bent portions 12 form an eight-shaped arrangement.

[0046] Combination Figure 1 and Figure 3 The bottom plate body 11 of the bottom plate 1 is carried on the frame 600 , and a reinforcement member 13 may be further provided on the lower surface of the bottom plate body 11 corresponding to the position of the beam 601 of the frame 600 .

[0047] Next Read Figure 2 , Figure 3 and Figure 5The side box panel 2 includes a box panel body 21, a top beam 22 extending along the upper edge of the box panel body 21, and a bottom beam 23 extending along the lower edge of the box panel body 21. The box panel body 21 and the bottom plate 1 enclose the cargo compartment space 101, and the top beam 22 and the bottom beam 23 are fixed to the outer side of the box panel body 21 to strengthen the box panel body 21.

[0048] See also Figure 5 and Figure 6 The box plate body 21 is a structure with a middle portion protruding outward from the dump truck 100. In this embodiment, the box plate body 21 is formed by bending a plate in one piece, and its material can be high-strength steel, such as grade AG700L or steel with higher strength.

[0049] Specifically, the box panel body 21 includes, from top to bottom, a vertical first side panel 211, a first transition panel 212 extending downward and outward from the lower end of the first side panel 211, a second side panel 213 extending vertically downward from the lower end of the first transition panel 212, a second transition panel 214 extending downward and inward from the lower end of the second side panel 213, and a lap plate 215 extending horizontally inward from the lower end of the second transition panel 214.

[0050] In this structure, the second side plate 213 is located on the outer side of the dump truck 100 relative to the first side plate 211, and the outer side surface of the second side plate 213 is the outermost side surface of the box plate body 21. Figure 3 From the top, the second side plate 213 constitutes the widest part of the cargo compartment space 101 . By moving the second side plate 213 outward, the internal space of the cargo compartment space 101 is increased, and the volume of the dump compartment 100 is increased.

[0051] The second transition plate 214 extends downward and inwardly, which can facilitate the folding of goods downward and inward, facilitate the unloading of the dump carriage 100, and prevent accumulation of goods.

[0052] The lap plate 215 is overlapped and fixed to the bottom plate body 11 of the bottom plate 1. On the one hand, the bottom of the box plate body 21 is connected and fixed to the bottom plate 1. On the other hand, the overlapped fixing method is more convenient for assembly and welding.

[0053] Recombination Figure 5 and Figure 7 The bottom beam 23 is hollow inside and has an opening 230 on its side. The opening 230 of the bottom beam 23 is fixed to the outer side of the second transition plate 214 of the box plate body 21, and the opening 230 is closed by the second transition plate 214. The bottom beam 23 and the second transition plate 214 are enclosed to form a circumferentially closed structure, which increases the structural stability and supports the lower end portion of the box plate body 21, thereby improving the strength of the lower end portion of the box plate body 21.

[0054] like Figure 7As shown, the bottom beam 23 is preferably formed by integrally bending a plate, and its material can also be high-strength steel. Specifically, the bottom beam 23 includes a lower outer plate 231 extending vertically, a support plate 232 extending inwardly from the upper end of the lower outer plate 231, and a bottom connecting portion 233 extending inwardly from the lower end of the lower outer plate 231. The above-mentioned opening 230 is formed between the end of the support plate 232 and the end of the bottom connecting portion 233.

[0055] The lower outer plate 231 constitutes the outermost side of the bottom beam 23 , and the outer side surface of the lower outer plate 231 is flush with the outer side surface of the second side plate 213 of the box plate body 21 .

[0056] The end of the support plate 232 is connected to the second transition plate 214 of the box plate body 21. Preferably, the support plate 232 extends obliquely upward and inward from the upper end of the lower outer plate 231, that is, an obtuse angle is formed between the support plate 232 and the lower outer plate 231. Therefore, the support plate 232 forms an upward and inward support for the second transition plate 214, so that the second transition plate 214 can better resist the load borne by the gravity of the goods and prevent the box from expanding and being damaged.

[0057] In this embodiment, the bottom connecting portion 233 specifically includes a bottom transition plate 235 extending horizontally inward from the lower end of the lower outer plate 231 and a bottom connecting plate 236 extending obliquely inwardly and upwardly from the bottom transition plate 235. Figure 5 The bottom connecting plate 236 is overlapped and fixed with the bent portion 12 of the bottom plate 1. Through this overlapped mode, the connection is convenient, and at the same time, a longer connection length is provided to improve the connection strength.

[0058] See also Figure 5 and Figure 8 The top beam 22 is connected to the outer side of the first side plate 211 and the first transition plate 212 of the box plate body 21, and is enclosed with the first side plate 211 and the first transition plate 212 to form a closed structure to improve the strength of the upper end of the box plate body 21. The outermost side of the top beam 22 is flush with the outer side of the second side plate 213 of the box plate body 21.

[0059] In this embodiment, the top beam 22 is also formed by bending a plate in one piece, and can also be made of high-strength steel. Specifically, the top beam 22 may include an upright upper outer plate 221, a connecting plate 222 extending downward and inwardly from the lower end of the upper outer plate 221, a top panel 223 extending horizontally inwardly from the upper end of the upper outer plate 221, and a folding plate 224 extending downward from the inner end of the top panel 223. Among them, the upper outer plate 221 is flush with the second side plate 213, the lower end of the connecting plate 222 is connected to the outer side surface of the first transition plate 212, and the folding plate 224 is overlapped and fixed to the outer side surface of the first side plate 211.

[0060] Different from the conventional related art in which the top beam is only connected to the upright first side plate portion of the box plate body, the top beam 22 in this embodiment is connected to the first transition plate 212 of the box plate body 21 by means of a downwardly inclined connecting plate 222, so that the strength of the first transition plate 212 portion is improved, thereby facilitating the second side plate 213 portion connected to the first transition plate 212 to have better strength, so as to maintain the shape of the second side plate 213 and prevent the box from expanding.

[0061] In addition, the dump car 100 preferably uses an electrophoresis process to deposit a film layer on its surface to prevent rust. In this embodiment, since the top beam 22 and the bottom beam 23 are structures formed by bending the plate, leakage holes can be punched out on the plate at the same time during the blanking process before bending and forming, and the top beam 22 and the bottom beam 23 after bending and forming are correspondingly provided with leakage holes (not shown in the figure). After the top beam 22 and the bottom beam 23 are respectively welded and fixed to the box plate body 21, during the electrophoresis process, the electrophoresis liquid can enter the closed structure formed by the top beam 22 and the bottom beam 23 and the box plate body 21 through the leakage holes, and a film layer can also be formed on the inner surface of the top beam 22 and the bottom beam 23 to prevent rust.

[0062] Based on the above description, in the dump truck 100 of the present invention, the side box panel 2 has a box panel body 21 with a convex middle portion. Compared with the traditional flat plate structure, the side box panel 2 of the present invention can expand the internal space of the dump truck 100 under the condition of the same external dimensions, thereby increasing the volume of the dump truck 100 accordingly.

[0063] The side box panel 2 adopts a special-shaped box panel body 21, and the upper and lower end edges of the outer side of the box panel body 21 are respectively fixed with a top beam 22 and a bottom beam 23, which can strengthen the box panel body 21 so that the side box panel 2 can meet the strength requirements and prevent the box from expanding. Compared with the traditional flat-plate side box panel structure, it can reduce vertical ribs and cross beams and reduce the weight of the dump truck 100.

[0064] In particular, the bottom beam 23 has a bottom connecting portion 233 extending inwardly, and the bottom connecting portion 233 is fixed to the bottom plate 1. In conjunction with the structure in which the bottom of the box plate main body 21 is also fixed to the bottom plate 1, the bottom beam 23 forms a closed structure at the lower end of the box plate main body 21, thereby increasing structural stability and providing support for the lower end portion of the box plate main body 21, thereby increasing the strength of the lower end portion of the box plate main body 21, and thereby increasing the overall strength of the dump truck 100.

[0065] Furthermore, the bottom of the box plate body 21 is overlapped with the bottom plate body 11 of the bottom plate 1 by means of the overlap plate 215, the bottom beam 23 is overlapped with the bent portion 12 of the bottom plate 1 by means of the bottom connecting plate 236, and the top beam 22 is overlapped with the first side plate 211 of the box plate body 21 by means of the folding plate 224. The overlap method is adopted to facilitate assembly and welding between structures, facilitate processing and manufacturing, and improve connection strength.

[0066] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A dump truck, characterized in that: It comprises a bottom plate and two side box plates respectively erected and fixed on both sides of the bottom plate, characterized in that the side box plates comprise: A box plate body, the middle of which protrudes outward from the dump truck compartment, and the bottom of which is fixed to the bottom plate; the box plate body also includes a first upright side plate, a first transition plate extending downward and outward obliquely from the lower end of the first side plate, a second side plate extending downward and upright from the lower end of the first transition plate, and a second transition plate extending downward and inward obliquely from the lower end of the second side plate; A top beam extending along the upper edge of the box panel body and fixed to the outer side surface of the box panel body; the top beam is connected to the outer sides of the first side panel and the first transition panel; A bottom beam extends along the lower edge of the box plate body and is fixed to the outer side of the box plate body, and the outermost side of the bottom beam is flush with the outermost side of the box plate body; the bottom beam has a bottom connecting portion extending inwardly, and the bottom connecting portion is fixed to the bottom plate; the bottom beam is connected to the outer side of the second transition plate; Among them, the bottom plate includes a bottom plate body and two bent parts extending downward and outward from both sides of the bottom plate body, and the bent parts form an obtuse angle with the bottom plate body; the bottom connecting part includes a bottom connecting plate extending inward and upward, and the bottom connecting plate is overlapped and fixed with the bent part of the bottom plate.

2. The dump truck according to claim 1, characterized in that: The bottom beam is hollow inside and has an opening on the side. The opening of the bottom beam is fixed to the outer side surface of the box plate body and is closed by the outer side surface of the box plate body to form a circumferential closed structure.

3. The dump truck according to claim 2, characterized in that: The bottom beam also includes a lower outer plate extending upright upward from the outer end of the bottom connecting portion and a support plate extending inward from the upper end of the lower outer plate; the opening is formed between the support plate and the bottom connecting portion; the outer side surface of the lower outer plate is flush with the outermost side surface of the box plate body.

4. The dump truck according to claim 3, characterized in that: The support plate extends obliquely upward and inward from the upper end of the lower outer plate.

5. The dump truck according to claim 3, characterized in that: The bottom connecting portion further comprises a bottom transition plate extending horizontally inwardly from the lower end of the lower outer plate, and the bottom connecting plate extends obliquely inwardly and upwardly from the bottom transition plate.

6. The dump truck according to claim 1, characterized in that: The bottom of the box plate body is provided with a lap plate extending horizontally inwards, and the lap plate is overlapped and fixed with the bottom plate.

7. The dump truck according to claim 6, characterized in that: The lap plate extends horizontally inward from the lower end of the second transition plate; The outermost side surface of the top beam and the outermost side surface of the bottom beam are both flush with the outer side surface of the second side plate.

8. The dump truck according to any one of claims 1 to 7, characterized in that: The top beam includes an upright upper outer plate, a connecting plate extending obliquely downward and inward from the lower end of the upper outer plate, a top panel extending horizontally inward from the upper end of the upper outer plate, and a folding plate extending downward from the inner end of the top panel; the end of the connecting plate is connected to the outer side surface of the box panel body, and the folding plate is overlapped and fixed to the box panel body.

9. The dump truck according to any one of claims 1 to 7, characterized in that: The box plate body, the top beam and the bottom beam are respectively formed by bending a plate in one piece; and leakage holes are respectively arranged on the top beam and the bottom beam.

10. A dump trailer, characterized in that: It comprises a vehicle frame and a dump truck as claimed in any one of claims 1 to 9, wherein the dump truck is flippably mounted on the vehicle frame.

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