Unmanned logistics vehicle with gull-wing door carriage

Abstract

The invention provides an unmanned logistics vehicle with a gull-wing-door carriage, and belongs to the technical field of logistics vehicles, the unmanned logistics vehicle comprises a chassis assembly, the chassis assembly comprises an aluminum alloy frame assembly, wheel-by-wire steering systems are arranged at the two ends of the aluminum alloy frame assembly, wheel assemblies are connected to the two sides of each wheel-by-wire steering system through four-wheel distributed driving systems, and the wheel assemblies are connected to the gull-wing-door carriage. The vehicle can be operated through four-wheel steering, flexible steering can be achieved with the extremely small turning radius, and the traffic capacity under a narrow channel is improved; a carriage assembly is arranged at the top of the aluminum alloy frame assembly and comprises a carriage main body structure, the carriage main body structure is arranged at the top of the aluminum alloy frame assembly, a gull-wing door assembly is arranged at the top of the carriage main body structure and comprises four groups of gull-wing door assemblies capable of being opened and closed, and a carriage top is connected to the top of the carriage main body structure. Two groups of gull-wing door assemblies are rotatably arranged on two sides of the carriage top, so that a spacious space is created for loading and unloading goods, and the goods are convenient to load and unload.

Description

Technical Field

[0001] The present invention belongs to the technical field of logistics vehicles, and more specifically, particularly relates to an unmanned logistics vehicle with a gull-wing door compartment. Background Art

[0002] With the rapid development of the logistics industry and the increasing demand for automation, the traditional manual transportation mode can no longer meet the needs of efficient, accurate and safe logistics. It relies on a large amount of manpower to carry out the loading and unloading, transportation and distribution of goods. In the face of the growing logistics business volume, manual operation is not only inefficient and difficult to meet the requirements of modern logistics for rapid turnover, but also prone to problems such as misloading, missing or wrong delivery address.

[0003] As an emerging technology, driverless logistics vehicles are gradually replacing traditional manual transportation methods and have broad application prospects. However, most of the driverless logistics vehicles currently on the market have deficiencies in vehicle compartment design, automated control, and mobility, especially in improving cargo loading and unloading efficiency, vehicle compartment modular design, and vehicle flexibility. There is room for improvement. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides an unmanned logistics vehicle with a gull-wing door compartment to solve the technical problems in the prior art that the traditional unmanned logistics vehicle has a fixed compartment structure, the cargo loading and unloading process is not convenient, and the traffic capacity in narrow passages is limited.

[0005] The purpose and effect of the unmanned logistics vehicle with gull-wing door compartment of the present invention are achieved by the following specific technical means:

[0006] A driverless logistics vehicle with a gull-wing door carriage comprises a chassis assembly, wherein the chassis assembly comprises an aluminum alloy frame assembly, both ends of the aluminum alloy frame assembly are provided with wheel-by-wire steering systems, and both sides of the wheel-by-wire steering systems are connected to wheel assemblies through a four-wheel distributed drive system; a carriage assembly is arranged on the top of the aluminum alloy frame assembly, wherein the carriage assembly comprises a carriage main structure, the carriage main structure is arranged on the top of the aluminum alloy frame assembly, a gull-wing door assembly is arranged on the top of the carriage main structure, the gull-wing door assembly comprises four groups of switchable gull-wing door assemblies, the top of the carriage main structure is connected to the carriage roof, and two groups of gull-wing door assemblies are rotatably arranged on both sides of the carriage roof.

[0007] In a preferred embodiment, the chassis assembly also includes an electrical and electronic control system and a wire-controlled braking system, a battery system is installed in the middle position of the aluminum alloy frame assembly, the electrical and electronic control system is arranged at the front end of the aluminum alloy frame assembly, and the wire-controlled braking system is arranged at the rear end of the aluminum alloy frame assembly; two sets of double-fork independent suspension systems are respectively arranged on both sides of the aluminum alloy frame assembly and are connected to the four sets of wheel assemblies.

[0008] In a preferred embodiment, the carriage assembly also includes two groups of side covers, and the side covers are arranged on both sides of the aluminum alloy frame assembly corresponding to the battery system, and two groups of switchable intermediate inspection covers are also arranged on the top of the aluminum alloy frame assembly corresponding to the battery system.

[0009] In a preferred embodiment, a front inspection cover is provided on the top of the aluminum alloy frame assembly corresponding to the electric and electronic control system, and a rear inspection cover is also provided on the top of the aluminum alloy frame assembly corresponding to the wire control brake system.

[0010] In a preferred embodiment, a front face assembly and a rear bumper are arranged at the bottom of the aluminum alloy frame assembly, the front face assembly is located at the front end of the aluminum alloy frame assembly, and the rear bumper is located at the rear end of the aluminum alloy frame assembly.

[0011] In a preferred embodiment, a scanning component is also provided on the main structure of the carriage, and the scanning component includes two groups of 3D laser radars. Two groups of mounting brackets are provided at the front end of the main structure of the carriage, and two groups of 3D laser radars are provided at the bottom of the two groups of mounting brackets. Millimeter wave radars are provided at the bottom of the two groups of 3D laser radars.

[0012] In a preferred embodiment, the scanning component also includes multiple groups of ultrasonic radars, and multiple groups of ultrasonic radars are arranged on one side of the front face assembly. A crossbeam is arranged on the top of the car, and two groups of vertical plates are arranged at the bottom of the crossbeam and connected to the main structure of the car. Positioners are arranged on one side of the main structure of the car and at both ends of the crossbeam; display screens are also arranged at both ends of the crossbeam.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Through the setting of the four-wheel distributed drive system and the wheel-by-wire steering system, the wheel-by-wire steering system equipped at both ends of the aluminum alloy frame assembly, in conjunction with the four-wheel distributed drive system and the wheel assembly, enables it to shuttle freely under various complex road conditions. In narrow logistics channels or storage areas, the vehicle can achieve flexible steering with a very small turning radius through four-wheel steering operation, effectively avoiding the risk of jamming or collision caused by the inconvenience of steering of traditional vehicles, improving the smoothness of logistics operations, and enhancing the adaptability of the vehicle to different logistics scenarios.

[0015] 2. Through the setting of the gull-wing door assembly, when using the logistics vehicle, the four sets of gull-wing door assemblies on the top of the main structure of the car can be opened upwards, creating a spacious space for cargo loading and unloading. Compared with the traditional car door, the operator does not need to laboriously adjust the cargo angle or handling path in the narrow doorway space. The operator can directly use the large-area entrance and exit formed after the gull-wing door is opened, and conveniently use forklifts or other loading and unloading equipment to quickly move the cargo in and out of the car, thereby improving the efficiency of single loading and unloading. Moreover, in logistics scenarios with frequent loading and unloading of goods, it can shorten the overall operation time, reduce labor costs and vehicle dwelling time, thereby improving the overall timeliness of logistics distribution.

[0016] 3. Through the setting of the car body components, the front inspection cover, middle inspection cover and rear inspection cover that can be switched are installed on the top of the aluminum alloy frame assembly. When a component or system of the logistics vehicle needs to be inspected, maintained or replaced, the corresponding inspection cover can be easily opened, and the maintenance personnel can quickly repair the corresponding components or systems without complicated and tedious disassembly work, reducing the difficulty and time cost of maintenance.

[0017] 4. Through the setting of scanning components, two sets of 3D laser radars, millimeter wave radars and multiple sets of ultrasonic radars are installed on the logistics vehicle. They work together to perceive the environmental information around the vehicle in real time. Regardless of the location, shape and distance of obstacles, they can be captured. Based on this environmental information, the logistics vehicle plans the driving route to avoid various potential dangers and achieve stable and reliable autonomous driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of an assembled unmanned logistics vehicle with a gull-wing door compartment according to the present invention;

[0019] Figure 2 It is a schematic structural diagram of an unmanned logistics vehicle with a gull-wing door compartment after being unfolded according to the present invention;

[0020] Figure 3 It is a schematic structural diagram of an unmanned logistics vehicle with a gull-wing door compartment after a compartment assembly and a gull-wing door assembly are assembled;

[0021] Figure 4 yes Figure 3 Schematic diagram of the structure after splitting;

[0022] Figure 5 It is a schematic structural diagram of an assembled scanning component in an unmanned logistics vehicle with a gull-wing door compartment according to the present invention;

[0023] Figure 6 yes Figure 5 Schematic diagram of the structure after splitting;

[0024] Figure 7 It is a schematic structural diagram of an assembled chassis component in an unmanned logistics vehicle with a gull-wing door compartment according to the present invention.

[0025] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0026] 1. Aluminum alloy frame assembly; 2. Wire control braking system; 3. Four-wheel distributed drive system; 4. Wheel-wire control steering system; 5. Double-fork independent suspension system; 6. Battery system; 7. Electrical and electronic control system; 8. Wheel assembly; 11. Main structure of the car body; 12. Side cover; 13. Middle inspection cover; 14. Front inspection cover; 15. Rear inspection cover; 16. Front face assembly; 17. Rear bumper; 21. Gull-wing door assembly; 22. Car body roof; 23. Crossbeam; 24. Vertical plate; 31. 3D laser radar; 32. Mounting bracket; 33. Millimeter wave radar; 34. Ultrasonic radar; 35. Positioner; 36. Display screen. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solutions of the present invention, but cannot be used to limit the protection scope of the present invention.

[0028] Example:

[0029] As attached Figures 1 to 7 As shown:

[0030] The present invention provides an unmanned logistics vehicle with a gull-wing door compartment, including a chassis component, wherein the chassis component includes an aluminum alloy frame assembly 1, wherein the aluminum alloy frame assembly 1 is constructed using an aluminum alloy frame structure, and is light in weight and high in strength; both ends of the aluminum alloy frame assembly 1 are equipped with a wheel-by-wire steering system 4, wherein the wheel-by-wire steering system 4 adopts a four-wheel Ackerman steering system, so that the steering of the entire vehicle is more flexible and agile, and the turning radius is small, thereby effectively avoiding the risk of jamming or collision caused by the inconvenience of steering of traditional vehicles, improving the smoothness of logistics operations, and enhancing the ability of the vehicle to adapt to different logistics scenarios; both sides of the wheel-by-wire steering system 4 are connected to wheel assemblies 8 through a four-wheel distributed drive system 3, and the four-wheel distributed drive system 3 adopts a hub motor, which fully utilizes the power of each wheel assembly 8, so that the power performance of the entire vehicle is excellent.

[0031] A carriage assembly is arranged on the top of the aluminum alloy frame assembly 1, and the chassis assembly and the carriage assembly can be independently disassembled and assembled, which is convenient for maintenance and upgrading; the carriage main structure 11 is made of welded steel pipes, with high structural strength and strong bearing capacity, and four sets of switchable gull-wing door assemblies 21 are arranged on the top of the carriage main structure 11, and these gull-wing doors are driven by an electric control system and can be opened individually or simultaneously, which greatly facilitates the loading and unloading of goods. When loading and unloading goods, the wide entrance and exit formed by the opened gull-wing doors can be directly used, and forklifts or other loading and unloading equipment can be used for efficient operation, thereby improving the efficiency of single loading and unloading, and in logistics scenarios with frequent loading and unloading, it can shorten the overall operation time, reduce labor costs and vehicle dwelling time, thereby improving the overall logistics distribution efficiency; two sets of gull-wing door assemblies 21 with rotatable switches are installed on both sides of the carriage roof 22, and the gull-wing door assembly 21 adopts a process structure of an aluminum alloy frame and blister parts, which not only ensures strength, but also reduces the weight of the vehicle and improves the overall aesthetics.

[0032] Please refer to Figure 7 As shown, the chassis assembly also includes an electrical and electronic control system 7 and a wire-controlled braking system 2. The wire-controlled braking system 2 adopts wire-controlled hydraulic technology and has a fast response speed. A battery system 6 is installed in the middle position of the aluminum alloy frame assembly 1. The battery system 6 adopts lithium iron phosphate batteries, has a long driving range, high safety and strong stability; the front end of the aluminum alloy frame assembly 1 is provided with an electrical and electronic control system 7, and the electrical and electronic control system 7 adopts a vehicle-grade VCU and electrical system, which are mature, stable and low in cost; the wire-controlled braking system 2 is installed at the rear end of the aluminum alloy frame assembly 1, and two sets of double-fork independent suspension systems 5 are respectively arranged on both sides of the aluminum alloy frame assembly 1. These double-fork independent suspension systems 5 are respectively connected to four sets of wheel assemblies 8, and the double-fork independent suspension system 5 adopts a double wishbone design, which not only ensures the comfort of the chassis assembly, but also takes into account the stability of the control.

[0033] Please refer to Figure 7As shown, the carriage assembly also includes two sets of side cover plates 12, which are respectively installed on both sides of the aluminum alloy frame assembly 1, corresponding to the position of the battery system 6; at the same time, two sets of switchable intermediate inspection covers 13 are also provided on the top of the aluminum alloy frame assembly 1, which also correspond to the position of the battery system 6.

[0034] Please refer to Figure 4 and Figure 7 As shown, a front inspection cover 14 is provided on the top of the aluminum alloy frame assembly 1 corresponding to the electrical and electronic control system 7, and a rear inspection cover 15 is provided on the top of the aluminum alloy frame assembly 1 corresponding to the wire control brake system 2. The front inspection cover 14, the rear inspection cover 15 and the two sets of middle inspection covers 13 are all made of high-strength steel plates and can withstand heavier objects. By setting these openable inspection covers, when a component or system of the logistics vehicle needs to be inspected, maintained or replaced, the staff only needs to open the corresponding cover to quickly perform maintenance operations without complicated disassembly work, which simplifies the maintenance process and reduces the difficulty and time cost of maintenance.

[0035] Please refer to Figure 2 and Figure 3 As shown, a front face assembly 16 and a rear bumper 17 are installed at the bottom of the aluminum alloy frame assembly 1. Both the front face assembly 16 and the rear bumper 17 are manufactured by the vacuum forming process, so that they are light in weight and beautiful in appearance. The front face assembly 16 is located at the front end of the aluminum alloy frame assembly 1, and the rear bumper 17 is installed at the rear end of the frame assembly. This front and rear distribution layout can not only play a protective role, but also enhance the beauty of the entire vehicle.

[0036] Please refer to Figure 5 and Figure 6 As shown, a scanning component for sensing the environment is also provided on the main structure 11 of the carriage, and the scanning component includes two groups of 3D laser radars 31, and the two groups of 3D laser radars 31 are respectively installed at the front end of the main structure 11 of the carriage, and are fixed by two groups of mounting brackets 32; a millimeter-wave radar 33 is additionally provided at the bottom of the two groups of 3D laser radars 31, and through the synergistic effect of the 3D laser radar 31 and the millimeter-wave radar 33, the information of the surrounding environment can be fully sensed, and reliable data support can be provided for the realization of the unmanned driving function, the 3D laser radar 31 can capture the three-dimensional contour of the object, and the millimeter-wave radar 33 can detect more distant targets; the configuration of these sensing devices enables the logistics vehicle to have excellent environmental perception capabilities, which helps to improve the safety and reliability of its autonomous driving.

[0037] Please refer to Figure 6As shown, the scanning component also includes a plurality of ultrasonic radars 34, which are installed on one side of the front face assembly 16. Through the coordinated work of the 3D laser radar 31, the millimeter wave radar 33 and the plurality of ultrasonic radars 34, the environmental information around the vehicle can be fully sensed, including the position, shape and distance of obstacles. Based on these environmental data, the logistics vehicle can plan a stable and reliable driving route, avoid various potential dangers, and achieve safe and efficient automatic driving. At the same time, a crossbeam 23 is also provided on the roof 22 of the car body, and the bottom of the crossbeam 23 is connected to two groups of vertical plates 24, which are connected to the main structure 11 of the car body, thereby increasing the structural stability of the logistics vehicle. Positioners 35 are provided at both ends of the crossbeam 23 and one side of the main structure 11 of the car body. These positioners 35 include a GPS / RTK positioning system and an IMU (inertial measurement unit), which can provide accurate position information. In addition, display screens 36 are also provided at both ends of the crossbeam 23, which can intuitively present the positioning and other information. These configurations help to better grasp the position and status of the vehicle.

[0038] Specific usage and function of this embodiment: Before use, first ensure that all components of the logistics vehicle are firmly installed and in normal condition; the aluminum alloy frame assembly 1 provides stable support for the entire vehicle with its light weight and high strength aluminum alloy frame structure, and the front face assembly 16 and rear bumper 17 at the bottom are manufactured by vacuum forming process, which not only plays a protective role, but also reduces weight and adds aesthetics; when the vehicle starts running, the wheel-by-wire steering system 4 located at both ends of the aluminum alloy frame assembly 1 and the four-wheel distributed drive system 3 work together, and the wheel-by-wire steering system 4 makes the steering of the whole vehicle flexible and agile, with a small turning radius, and can accurately steer in narrow logistics channels or complex road conditions, effectively improving the smoothness of logistics operations and adapting to various scenarios; the four-wheel distributed drive system 3 gives full play to the power of each wheel assembly 8, ensures the excellent power performance of the vehicle, and drives the vehicle to move forward stably; at the same time, the double-fork independent suspension system 5 on both sides ensures the comfort of the chassis components and takes into account the stability of the control during the vehicle driving process, reducing the impact of bumps on the goods and the vehicle itself.

[0039] During cargo loading and unloading, the gull-wing door assembly 21 on the top of the main structure 11 of the carriage is driven by an electric control system and can be opened individually or simultaneously to form a spacious entrance and exit. Operators can conveniently use forklifts or other loading and unloading equipment to efficiently load and unload cargo through this entrance and exit, which not only improves the efficiency of single loading and unloading, but also shortens the overall operation time in logistics scenarios with frequent loading and unloading, reduces labor costs and vehicle dwelling time, and improves logistics distribution efficiency. Moreover, the gull-wing door assembly 21 adopts a process structure of aluminum alloy frame plus blister parts, which reduces the weight of the vehicle while ensuring strength.

[0040] While the logistics vehicle is driving, the scanning component continues to work; the two groups of 3D laser radars 31 fixed by the mounting bracket 32 ​​at the front end of the main structure 11 of the car body and the millimeter wave radar 33 at the bottom work together to fully perceive the surrounding environment information. The 3D laser radar 31 can capture the three-dimensional contour of the object, and the millimeter wave radar 33 can detect more distant targets. The combination of the two provides reliable data support for the unmanned driving function, so that the vehicle has excellent environmental perception capabilities, which helps to plan a stable and reliable driving route, avoid potential dangers, and achieve safe and efficient autonomous driving; the multiple groups of ultrasonic radars 34 on one side of the front face assembly 16 further assist in sensing the position and distance of obstacles around the vehicle, thereby improving the accuracy of environmental perception; the locators 35 (including GPS / RTK positioning system and IMU) arranged at both ends of the beam 23 and on one side of the main structure 11 of the car body can provide accurate position information, and the display screens 36 at both ends of the beam 23 can intuitively present positioning and other information, so as to better understand the position and status of the vehicle.

[0041] When the vehicle needs maintenance, the front inspection cover 14 corresponding to the electrical and electronic control system 7, the rear inspection cover 15 corresponding to the wire control brake system 2, and the two sets of middle inspection covers 13 corresponding to the battery system 6 on the top of the aluminum alloy frame assembly 1 can be easily opened. The staff only needs to open the corresponding cover to quickly inspect, maintain or replace the corresponding components or systems without complicated disassembly work, simplifying the maintenance process and reducing the difficulty and time cost of maintenance. At the same time, the characteristics of the chassis components and the car body components that can be disassembled and assembled independently also facilitate the overall maintenance and upgrade of the vehicle, ensure the long-term stable operation of the vehicle, reduce operating costs and improve utilization efficiency.

[0042] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An unmanned logistics vehicle with a gull-wing door compartment, characterized in that: The invention comprises a chassis assembly, wherein the chassis assembly comprises an aluminum alloy frame assembly (1), wherein both ends of the aluminum alloy frame assembly (1) are provided with a wheel-by-wire steering system (4), and both sides of the wheel-by-wire steering system (4) are connected to wheel assemblies (8) via a four-wheel distributed drive system (3); a carriage assembly is arranged on the top of the aluminum alloy frame assembly (1), wherein the carriage assembly comprises a carriage main body structure (11), wherein the carriage main body structure (11) is arranged on the top of the aluminum alloy frame assembly (1), wherein a gull-wing door assembly is arranged on the top of the carriage main body structure (11), wherein the gull-wing door assembly comprises four groups of gull-wing door assemblies (21) that can be opened and closed, wherein the top of the carriage main body structure (11) is connected to a carriage roof (22), and two groups of gull-wing door assemblies (21) are rotatably arranged on both sides of the carriage roof (22).

2. The unmanned logistics vehicle with a gull-wing door compartment according to claim 1, characterized in that: The chassis assembly also includes an electrical and electronic control system (7) and a wire-controlled braking system (2); a battery system (6) is installed in the middle of the aluminum alloy frame assembly (1); the electrical and electronic control system (7) is arranged at the front end of the aluminum alloy frame assembly (1); and the wire-controlled braking system (2) is arranged at the rear end of the aluminum alloy frame assembly (1); two sets of double-fork independent suspension systems (5) are respectively arranged on both sides of the aluminum alloy frame assembly (1) and are connected to the four sets of wheel assemblies (8).

3. The unmanned logistics vehicle with a gull-wing door compartment according to claim 2, characterized in that: The carriage assembly also includes two groups of side cover plates (12), and the side cover plates (12) are arranged on both sides of the aluminum alloy frame assembly (1) corresponding to the battery system (6). The top of the aluminum alloy frame assembly (1) is also provided with two groups of switchable intermediate inspection cover plates (13) corresponding to the battery system (6).

4. The unmanned logistics vehicle with a gull-wing door compartment according to claim 2, characterized in that: A front inspection cover plate (14) is provided on the top of the aluminum alloy frame assembly (1) corresponding to the electrical and electronic control system (7), and a rear inspection cover plate (15) is also provided on the top of the aluminum alloy frame assembly (1) corresponding to the wire control brake system (2).

5. The unmanned logistics vehicle with a gull-wing door compartment according to claim 2, characterized in that: A front face assembly (16) and a rear bumper (17) are arranged at the bottom of the aluminum alloy frame assembly (1); the front face assembly (16) is located at the front end of the aluminum alloy frame assembly (1), and the rear bumper (17) is located at the rear end of the aluminum alloy frame assembly (1).

6. The unmanned logistics vehicle with a gull-wing door compartment according to claim 5, characterized in that: A scanning component is also provided on the carriage main structure (11), and the scanning component includes two groups of 3D laser radars (31). Two groups of mounting brackets (32) are provided at the front end of the carriage main structure (11), and two groups of 3D laser radars (31) are provided at the bottom of the two groups of mounting brackets (32), and millimeter wave radars (33) are provided at the bottom of the two groups of 3D laser radars (31).

7. The unmanned logistics vehicle with a gull-wing door compartment according to claim 6, characterized in that: The scanning component also includes a plurality of groups of ultrasonic radars (34), and a plurality of groups of ultrasonic radars (34) are arranged on one side of the front face assembly (16). A crossbeam (23) is arranged on the top (22) of the carriage, and two groups of vertical plates (24) are arranged at the bottom of the crossbeam (23) and connected to the main structure (11) of the carriage. Positioners (35) are arranged on one side of the main structure (11) of the carriage and at both ends of the crossbeam (23); and display screens (36) are also arranged at both ends of the crossbeam (23).

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