Container system of unmanned pure electric mining dump truck

Abstract

The utility model provides a container system of an unmanned pure electric mining dump truck, which comprises a bottom plate, side plates and a front plate, the side plates are respectively arranged on two sides of the bottom plate, the front plate is arranged on the front side of the bottom plate, the bottom plate comprises a flat plate and an inclined plate, one end of the flat plate is fixedly connected with the front plate, and the other end of the flat plate is connected with one end of the inclined plate. The projection length of the flat plate accounts for 40%-50% of the total projection length of the bottom plate. The container has the advantages that the container bottom plate is arranged to be the combination of the flat plate and the inclined plate, the longitudinal space is increased, compared with a container of a conventional mining truck, under the condition that the size of carried goods is the same, the mass distribution of the container is more uniform, the overall height is lower, impact force of the goods on the container bottom plate, the side plates and the front plate is smaller, and the service life of the container is prolonged. And the static pressure is relatively small, so that the cruising ability of the vehicle is effectively improved.

Description

Technical Field

[0001] The utility model relates to a cargo box system of an unmanned pure electric mining dump truck, belonging to the technical field of mining mechanical equipment. Background Art

[0002] As people's environmental awareness increases, energy saving and consumption reduction, and efficiency improvement have become the focus of technological reform and innovation of mining trucks and wide-body truck manufacturers. Some mining companies have also made reducing emissions of equipment, improving efficiency, and achieving sustainable development of enterprises their main work content. Pure electric wide-body trucks and rigid dump trucks with technological upgrades have emerged, and they have gradually formed a scale. However, from a structural point of view, whether it is an electric wide-body truck or an electric rigid dump truck with technological upgrades, the structure of the cargo box is also a factor affecting the cruising range of electric mining trucks due to some structural layouts. For large pure electric and hybrid rigid dump trucks, the front suspension structure, power system layout, and rear transmission mechanism layout determine that the cargo box structure is mostly a structure of front deep, rear tilt, and mid-lift, which is a laborious mechanism compared to the front lift.

[0003] For the safety of the platform, traditional dump truck cargo boxes are equipped with large guard plates. Because the front part of the internal structure is deeper, there is more accumulation in the front when loading, especially when there are many large pieces of material, the front plate of the cargo box will be hit first.

[0004] In order to extend the service life of the cargo box, some trucks also install welded wear-resistant steel plates at the rear 1 / 3 of the cargo box floor, which increases the weight of the vehicle to a certain extent and increases consumption. According to theoretical calculations, the vehicle can consume 0.245KW more electricity per 100kg of weight per hour; for oil trucks, it saves money and consumes 0.482kg more diesel.

[0005] The structure of these cargo boxes and the layout of the hydraulic system greatly affect the effective use of the lower space. For the conversion of pure electric vehicles, it affects the layout of the battery pack and the range. Utility Model Content

[0006] Purpose of the invention: In view of the shortcomings in the prior art, the utility model provides a cargo box system for an unmanned pure electric mining dump truck. By improving the structure of the cargo box floor, side panels and front panels, the overall weight of the cargo box is reduced while ensuring the structural strength, thereby achieving lightweight of the vehicle, effectively improving the vehicle's endurance, and further improving operating efficiency.

[0007] Technical solution: A cargo box system of an unmanned pure electric mining dump truck, comprising a bottom plate, side plates and a front plate, wherein the side plates are respectively arranged on both sides of the bottom plate, and the front plate is arranged on the front side of the bottom plate. The bottom plate comprises a flat plate and an inclined plate, wherein one end of the flat plate is fixedly connected to the front plate, and the other end is connected to one end of the inclined plate, and the projected length of the flat plate accounts for 40% to 50% of the total projected length of the bottom plate.

[0008] The vehicle of the utility model is an unmanned mining truck. The cab is eliminated to provide more longitudinal space for the cargo box. Therefore, the longitudinal space is increased by setting the cargo box bottom plate as a combination of a flat plate and an inclined plate. Compared with the cargo box of a conventional mining truck, under the condition of carrying the same volume of cargo, the cargo box of the utility model has a more uniform mass distribution and a lower overall height. Therefore, the impact force of the cargo on the cargo box bottom plate, side plate and front plate is smaller, and the static pressure is relatively smaller. Therefore, the design of the bottom plate can further improve the structure of the front plate and the side plate, reduce the strength of the front plate and the side plate, avoid the setting of too many reinforcing beams, reduce the height of the side plate, reduce the overall weight of the cargo box, and effectively improve the vehicle's endurance.

[0009] At the same time, due to the length setting of the flatbed, it ensures that without changing the overall length of the cargo box, it can not only achieve sufficient cargo capacity, but also ensure that the contact area between the flatbed and the frame longitudinal beam is sufficient, and ensure that the pressure of the cargo box borne by the frame longitudinal beam is balanced; in addition, it can effectively ensure that the inclination angle of the inclined plate is about 11°, avoiding the inclination angle of the inclined plate being too large, exceeding the maximum dumping angle that the lifting cylinder can provide, resulting in reduced cargo dumping effect and affecting cargo transportation.

[0010] At least two cargo box longitudinal beams are arranged at the bottom of the bottom plate, the positions of the cargo box longitudinal beams correspond to the positions of the frame longitudinal beams, and shock-absorbing pads are arranged at the bottom of the cargo box longitudinal beams; it also includes bottom plate reinforcement beams distributed at equal intervals on the bottom surface of the flat plate and the bottom surface of the inclined plate.

[0011] Through the improvement of the structure of the cargo box, the impact force and static pressure on the bottom plate, side plate and front plate are reduced, so the number of longitudinal beams is set to at least two, which not only reduces the weight of the cargo box, but also ensures the structural strength of the bottom plate. The cargo box longitudinal beams arranged at the bottom of the bottom plate are in contact with the frame longitudinal beams, and the pressure of the cargo box is borne by the frame. In order to avoid unnecessary wear of structural parts caused by collision between the cargo box longitudinal beams and the frame longitudinal beams when the vehicle is running, shock-absorbing pads are arranged at the bottom of the cargo box longitudinal beams to offset the impact of the impact; at the same time, the bottom plate is provided with a bottom plate reinforcement beam to ensure uniform strength of each area of ​​the bottom plate.

[0012] It also includes a cargo box turning seat arranged on the bottom plate reinforcing beam of the bottom surface of the inclined plate, and the cargo box turning seat is hinged to the frame turning seat arranged on the frame.

[0013] In order to ensure that the bottom plate is not affected when the cargo box is turned over and unloaded, the turning seat is placed at the bottom plate reinforcement beam to distribute the force through the bottom plate reinforcement beam to ensure the stability of the unloading process.

[0014] The front plate is inclined toward the middle of the cargo box, and at least two front plate reinforcing beams connected to one end of the cargo box longitudinal beam are arranged on the outer side of the front plate.

[0015] Since the cargo box of the present application is used on a pure electric unmanned mining dump truck, the cab is eliminated, and the hydraulic lifting system and various control valves and other components are installed in the front space of the vehicle. Therefore, when the hydraulic cylinder is lifting, the front plate is tilted toward the middle of the frame to provide sufficient telescopic space for the lifting cylinder and avoid interference with the lifting cylinder.

[0016] It also includes a lifting support that is arranged on the front plate reinforcement beam outside the front plate, and the lifting support is hinged to the lifting cylinder.

[0017] During the lifting process, the lifting support is subjected to greater force. In order to avoid the impact on the front plate and guard plate due to stress concentration during the lifting process, the lifting support is set on the front plate reinforcement beam, which can effectively balance the force and increase local strength.

[0018] It also includes a guard plate that is arranged on the upper end of the front panel and connected to the side panel as a whole, and the length of the guard plate is 13% to 15% of the total length of the cargo box.

[0019] Due to the cancellation of the cab, corresponding improvements have been made to the guard plate that was previously used to protect the driver's safety. Although the cab has been cancelled at the front end of the vehicle, new lifting cylinders and other working components have been set. In order to protect the working components and reduce the overall weight of the cargo box, the length of the guard plate is set to 13%~15% of the total length of the cargo box. This can protect the components while reducing the total weight of the cargo box, further improving the vehicle's endurance.

[0020] At least one obliquely arranged side plate reinforcement beam is arranged on the outer side of each side plate, and the reinforcement beam is arranged near the middle of the side plate.

[0021] Since the force on the side panels is reduced, the number of side panel reinforcement beams does not need to be too large. At least one side panel reinforcement beam is set at an angle to increase the coverage area and provide better protection. It can also resist some deformation of the cargo box in the front and rear directions.

[0022] A wear-resistant cross beam is arranged at the bottom of the inclined plate away from one end of the flat plate.

[0023] A wear-resistant beam is set at the tail of the inclined plate which is in contact with materials most frequently. The cross-sectional area of ​​the wear-resistant beam is larger than the cross-sectional area of ​​the bottom plate reinforcement beam, which increases the strength of the tail of the inclined plate. During the unloading process, the strength of the tail of the inclined plate is increased, thereby improving the service life of the cargo box.

[0024] Beneficial effects: The vehicle of the utility model is an unmanned mining vehicle, and the cab is eliminated to provide more longitudinal space for the cargo box. Therefore, by setting the cargo box bottom plate as a combination of a flat plate and an inclined plate, the longitudinal space is increased. Compared with the cargo box of a conventional mining truck, under the condition of carrying the same volume of cargo, the cargo box of the utility model has a more uniform mass distribution and a lower overall height, so the impact force of the cargo on the cargo box bottom plate, side plate and front plate is smaller, and the static pressure is relatively smaller. Therefore, the design of the bottom plate can bring about further improvement of the structure of the front plate and the side plate, reduce the strength of the front plate and the side plate, avoid the setting of too many reinforcing beams, reduce the height of the side plate, reduce the overall weight of the cargo box, and effectively improve the vehicle endurance.

[0025] At the same time, due to the length setting of the flatbed, it ensures that without changing the overall length of the cargo box, it can not only achieve sufficient cargo capacity, but also ensure that the contact area between the flatbed and the frame longitudinal beam is sufficient, and ensure that the pressure of the cargo box borne by the frame longitudinal beam is balanced; in addition, it can effectively ensure that the inclination angle of the inclined plate is about 11°, avoiding the inclination angle of the inclined plate being too large, exceeding the maximum dumping angle that the lifting cylinder can provide, resulting in reduced cargo dumping effect and affecting cargo transportation.

[0026] Due to the cancellation of the cab, corresponding improvements have been made to the guard plate that was previously used to protect the driver's safety. Although the cab has been cancelled at the front end of the vehicle, new lifting cylinders and other working components have been set. In order to protect the working components and reduce the overall weight of the cargo box, the length of the guard plate is set to 13%~15% of the total length of the cargo box. This can protect the components while reducing the total weight of the cargo box, further improving the vehicle's endurance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 It is an overall schematic diagram of the cargo box structure of the present utility model.

[0029] Figure 2 It is a side view of the cargo box structure of the present utility model.

[0030] Figure 3This is a bottom structural diagram of the cargo box structure of the present utility model. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] like Figures 1 to 3 As shown, a cargo box system of an unmanned pure electric mining dump truck includes a bottom plate 1, side plates 2 and a front plate 3, wherein the side plates 2 are respectively arranged on both sides of the bottom plate 1, and the front plate 3 is arranged on the front side of the bottom plate 1. The bottom plate 1 includes a flat plate 11 and an inclined plate 12, wherein one end of the flat plate 11 is fixedly connected to the front plate 3, and the other end is connected to one end of the inclined plate 12, and the projected length of the flat plate 11 accounts for 40% to 50% of the total projected length of the bottom plate 1.

[0035] The vehicle of the utility model is an unmanned mining truck. The cab is eliminated to provide more longitudinal space for the cargo box. Therefore, by setting the cargo box bottom plate 1 as a combination of a flat plate 11 and an inclined plate 12, the longitudinal space is increased. Compared with the cargo box of a conventional mining truck, under the condition of carrying the same volume of cargo, the cargo box of the utility model has a more uniform mass distribution and a lower overall height. Therefore, the impact force of the cargo on the cargo box bottom plate 1, the side plate 2, and the front plate 3 is smaller, and the static pressure is relatively smaller. Therefore, the design of the bottom plate 1 can further improve the structure of the front plate 3 and the side plate 2, reduce the strength of the front plate 3 and the side plate 2, avoid the setting of too many reinforcing beams, reduce the height of the side plate 2, reduce the overall weight of the cargo box, and effectively improve the vehicle's endurance.

[0036] At the same time, since the length of the flat plate 11 is set to 43% in this solution, it ensures that, without changing the overall length of the cargo box, it can not only achieve sufficient cargo capacity, but also ensure that the contact area between the flat plate 11 and the frame longitudinal beam is sufficient, and ensure that the pressure of the cargo box borne by the frame longitudinal beam is balanced; in addition, it can effectively ensure that the inclination angle of the inclined plate 12 is about 11°, avoiding the inclination angle of the inclined plate 12 being too large, exceeding the maximum dumping angle that the lifting cylinder can provide, resulting in reduced cargo dumping effect and affecting cargo transportation.

[0037] At least two cargo box longitudinal beams 13 are arranged at the bottom of the bottom plate 1. The positions of the cargo box longitudinal beams 13 correspond to the positions of the frame longitudinal beams. Shock-absorbing pads 14 are arranged at the bottom of the cargo box longitudinal beams 13. The bottom plate reinforcing beams 15 are also distributed at equal intervals on the bottom surfaces of the flat plate 11 and the bottom surfaces of the inclined plate 12.

[0038] By improving the structure of the cargo box, the impact force and static pressure on the bottom plate 1, the side plate 2 and the front plate 3 are reduced, so the number of longitudinal beams is set to at least two, which not only reduces the dead weight of the cargo box, but also ensures the structural strength of the bottom plate 1. The cargo box longitudinal beam 13 arranged at the bottom of the bottom plate 1 is in contact with the frame longitudinal beam, and the frame bears the pressure of the cargo box. In order to avoid unnecessary wear of structural parts caused by the collision between the cargo box longitudinal beam 13 and the frame longitudinal beam when the vehicle is running, a shock-absorbing pad 14 is arranged at the bottom of the cargo box longitudinal beam 13 to offset the impact; at the same time, the bottom plate 1 is provided with a bottom plate reinforcement beam 15 to ensure the uniform strength of each area of ​​the bottom plate 1.

[0039] It also includes a cargo box turning seat 4 arranged on the bottom plate reinforcing beam 15 of the bottom surface of the inclined plate 12, and the cargo box turning seat 4 is hinged to the frame turning seat arranged on the frame.

[0040] In order to ensure that the bottom plate 1 is not affected when the turning seat is subjected to large force when the cargo box is turned over and unloaded, the turning seat is set at the position of the bottom plate reinforcement beam 15. The force is distributed through the bottom plate reinforcement beam 15 to ensure the stability of the unloading process.

[0041] The front plate 3 is inclined toward the middle of the cargo box, and at least two front plate reinforcing beams 31 connected to one end of the cargo box longitudinal beam 13 are arranged on the outer side of the front plate 3 .

[0042] Since the cargo box of the present application is used on a pure electric unmanned mining dump truck, the cab is eliminated, and the hydraulic lifting system and various control valves and other components are installed in the front space of the vehicle. Therefore, when the hydraulic cylinder is lifting, the front plate 3 is tilted toward the middle of the frame to provide sufficient telescopic space for the lifting cylinder to avoid interference with the lifting cylinder.

[0043] The front plate further comprises a lifting support 5 arranged on the front plate reinforcing beam 31 outside the front plate 3 , wherein the lifting support 5 is hinged to the lifting cylinder.

[0044] During the lifting process, the lifting support 5 is subjected to greater force. In order to avoid the influence of stress concentration on the front plate 3 and the guard plate 6 during the lifting process, the lifting support 5 is arranged on the front plate reinforcement beam 31, which can effectively balance the force and increase the local strength.

[0045] It also includes a guard plate 6 which is arranged at the upper end of the front plate 3 and connected to the side plate 2 as a whole, and the length of the guard plate 6 is 13% to 15% of the total length of the cargo box.

[0046] Due to the cancellation of the cab, the guard plate 6 that was previously used to protect the driver's safety has been improved accordingly. Although the cab has been cancelled at the front end of the vehicle, new lifting cylinders and other working components have been set. In order to protect the working components and reduce the overall weight of the cargo box, the length of the guard plate 6 is set to 13%~15% of the total length of the cargo box, which is 14% in this solution. This can protect the components while reducing the total weight of the cargo box, further improving the vehicle's endurance.

[0047] At least one obliquely arranged side panel reinforcement beam 21 is disposed on the outer side of each side panel 2 , and the side panel reinforcement beam 21 is disposed near the middle of the side panel 2 .

[0048] Since the force on the side panel 2 is reduced, the number of side panel reinforcement beams 21 does not need to be too large. At least one side panel reinforcement beam 21 is inclined to increase the coverage area, provide better protection, and resist deformation of part of the cargo box in the front and rear directions.

[0049] A wear-resistant cross beam 16 is disposed at the bottom of the inclined plate 12 at one end away from the flat plate 11 .

[0050] A wear-resistant cross beam 16 is provided at the tail of the inclined plate 12 which contacts the materials most frequently. The cross-sectional area of ​​the wear-resistant cross beam 16 is larger than the cross-sectional area of ​​the bottom plate reinforcing beam 15, so as to increase the strength of the tail of the inclined plate 12. During the unloading process, the strength of the tail of the inclined plate 12 is increased, thereby improving the service life of the cargo box.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cargo box system of an unmanned pure electric mining dump truck, comprising a bottom plate (1), side plates (2) and a front plate (3), wherein the side plates (2) are respectively arranged on both sides of the bottom plate (1), and the front plate (3) is arranged on the front side of the bottom plate (1), characterized in that: The bottom plate (1) comprises a flat plate (11) and an inclined plate (12); one end of the flat plate (11) is fixedly connected to the front plate (3), and the other end is connected to one end of the inclined plate (12); the projected length of the flat plate (11) accounts for 40% to 50% of the total projected length of the bottom plate (1).

2. The cargo box system of the unmanned pure electric mining dump truck according to claim 1 is characterized by: At least two cargo box longitudinal beams (13) are arranged at the bottom of the bottom plate (1), the positions of the cargo box longitudinal beams (13) correspond to the positions of the frame longitudinal beams, and shock-absorbing pads (14) are arranged at the bottom of the cargo box longitudinal beams (13); and bottom plate reinforcing beams (15) are also distributed at equal intervals on the bottom surface of the flat plate (11) and the bottom surface of the inclined plate (12).

3. The cargo box system of the unmanned pure electric mining dump truck according to claim 2 is characterized by: It also includes a cargo box turning seat (4) arranged on a bottom plate reinforcing beam (15) on the bottom surface of the inclined plate (12), and the cargo box turning seat (4) is hinged to a vehicle frame turning seat arranged on the vehicle frame.

4. The cargo box system of the unmanned pure electric mining dump truck according to claim 1 is characterized in that: The front plate (3) is arranged obliquely toward the middle of the cargo box, and at least two front plate reinforcing beams (31) connected to one end of the cargo box longitudinal beam (13) are arranged on the outside of the front plate (3).

5. The cargo box system of the unmanned pure electric mining dump truck according to claim 4 is characterized in that: It also includes a lifting support (5) arranged on the front plate reinforcement beam (31) outside the front plate (3), and the lifting support (5) is hinged to the lifting cylinder.

6. The cargo box system of the unmanned pure electric mining dump truck according to claim 1 is characterized by: It also includes a guard plate (6) arranged at the upper end of the front plate (3) and connected to the side plate (2) as a whole, wherein the length of the guard plate (6) is 13% to 15% of the total length of the cargo box.

7. The cargo box system of the unmanned pure electric mining dump truck according to claim 1 is characterized by: At least one obliquely arranged side plate reinforcement beam (21) is arranged on the outer side of each side plate (2), and the side plate reinforcement beam (21) is arranged near the middle of the side plate (2).

8. The cargo box system of the unmanned pure electric mining dump truck according to claim 1 is characterized by: A wear-resistant crossbeam (16) is provided at the bottom of the inclined plate (12) at one end away from the flat plate (11).

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