Unmanned logistics vehicle with gull-wing door carriage

Abstract

The utility model provides an unmanned logistics vehicle with a gull-wing door carriage, which belongs to the technical field of logistics vehicles and comprises a chassis component, the chassis component comprises an aluminum alloy frame assembly, and wheel-by-wire steering systems are arranged at two ends of the aluminum alloy frame assembly. The two sides of the wheel steer-by-wire system are connected with the wheel assemblies through the four-wheel distributed driving system, 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 utility model belongs to the technical field of logistics vehicles, and more specifically, relates to an unmanned logistics vehicle with a carriage having gull-wing doors. Background Art

[0002] With the rapid development of the logistics industry and the increasing demand for automation, the traditional manual transportation model 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 volume of logistics business, 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, unmanned logistics vehicles are gradually replacing traditional manual transportation methods and have broad application prospects. However, most of the unmanned logistics vehicles currently on the market have deficiencies in carriage design, automated control, and maneuverability, especially in improving cargo loading and unloading efficiency, carriage modular design, and vehicle flexibility. There is room for improvement. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an unmanned logistics vehicle with a gull-wing door compartment to solve the technical problems in the existing technology, such as the fixed compartment structure of traditional unmanned logistics vehicles, the inconvenient cargo loading and unloading process, and the limited traffic capacity in narrow passages.

[0005] The purpose and function of the unmanned logistics vehicle with gull-wing doors in this utility model 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, wheel-by-wire steering systems are provided at both ends of the aluminum alloy frame assembly, and wheel assemblies are connected to the two sides of the wheel-by-wire steering systems via a four-wheel distributed drive system; a carriage assembly is provided on top of the aluminum alloy frame assembly, wherein the carriage assembly comprises a carriage main structure, the carriage main structure is provided on top of the aluminum alloy frame assembly, a gull-wing door assembly is provided on 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 provided on both sides of the carriage roof.

[0007] In a preferred embodiment, the chassis assembly also includes an electrical control system and a wire-controlled brake system. A battery system is installed in the middle position of the aluminum alloy frame assembly, the electrical control system is provided at the front end of the aluminum alloy frame assembly, and the wire-controlled brake system is provided at the rear end of the aluminum alloy frame assembly; two sets of double-fork independent suspension systems are provided 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 sets of side covers, and the side covers are provided on both sides of the aluminum alloy frame assembly corresponding to the battery system. Two sets of switchable intermediate inspection covers are also provided 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 electrical 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 provided 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 the ultrasonic radars are arranged on one side of the front face assembly. A crossbeam is provided on the top of the car body, and two groups of vertical plates are provided at the bottom of the crossbeam and connected to the main structure of the car body. Positioners are provided on one side of the main structure of the car body and at both ends of the crossbeam; display screens are also provided 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, combined with the four-wheel distributed drive system and wheel assembly, enables it to shuttle freely under various complex road conditions. In narrow logistics channels or storage areas, the vehicle can use four-wheel steering operation to achieve flexible steering with an extremely small turning radius, effectively avoiding the risk of jamming or collision caused by the inconvenient steering of traditional vehicles, improving the smoothness of logistics operations and enhancing the vehicle's adaptability 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 upward, creating a spacious space for loading and unloading of goods. Compared with traditional car doors, operators do not need to laboriously adjust the cargo angle or handling path in the narrow doorway space. They can directly use the large entrance and exit formed after the gull-wing door is opened, and conveniently use forklifts or other loading and unloading equipment to quickly load and unload goods in 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 top of the aluminum alloy frame assembly is equipped with a switchable front inspection cover, middle inspection cover and rear inspection cover. 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 component or system 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 This is a schematic diagram of the assembled structure of an unmanned logistics vehicle with a gull-wing door compartment in the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of an unmanned logistics vehicle with a gull-wing door compartment after it is unfolded;

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

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

[0022] Figure 5 This is a schematic diagram of the structure of the assembled scanning components in an unmanned logistics vehicle with a gull-wing door compartment in the present invention;

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

[0024] Figure 7 The utility model is a schematic structural diagram of the assembled chassis components of an unmanned logistics vehicle with a gull-wing door compartment.

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

[0026] 1. Aluminum alloy frame assembly; 2. Wire-controlled braking system; 3. Four-wheel distributed drive system; 4. Wheel-wire steer system; 5. Double-wishbone independent suspension system; 6. Battery system; 7. Electrical and electronic control system; 8. Wheel assembly; 11. Carriage main structure; 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. Carriage roof; 23. Crossbeam; 24. Vertical panel; 31. 3D laser radar; 32. Mounting bracket; 33. Millimeter-wave radar; 34. Ultrasonic radar; 35. Positioner; 36. Display screen. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the technical solution of the present invention, but are not intended to limit the scope of protection of the present invention.

[0028] Example:

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

[0030] The utility model provides an unmanned logistics vehicle with a gull-wing door compartment, including a chassis assembly, the chassis assembly including an aluminum alloy frame assembly 1, the aluminum alloy frame assembly 1 is constructed with an aluminum alloy frame structure, which is light in weight and high in strength; both ends of the aluminum alloy frame assembly 1 are equipped with wheel-wire steering systems 4, the wheel-wire steering system 4 adopts a four-wheel Ackerman steering system, which makes the steering of the whole vehicle more flexible and agile, and has a small turning radius, 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 vehicle's ability to adapt to different logistics scenarios, the wheel-wire steering system 4 is connected to the wheel assemblies 8 on both sides through the four-wheel distributed drive system 3, the four-wheel distributed drive system 3 adopts hub motors, and fully utilizes the power of each wheel assembly 8, so that the power performance of the whole vehicle is excellent.

[0031] A carriage assembly is provided on the top of the aluminum alloy frame assembly 1, and the chassis assembly and the carriage assembly can be disassembled and assembled independently for easy maintenance and upgrading; the carriage main structure 11 is made of welded steel pipes with high structural strength and strong load-bearing capacity, and four sets of switchable gull-wing door assemblies 21 are provided on the top of the carriage main structure 11. 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 open gull-wing doors can be directly utilized, and forklifts or other loading and unloading equipment can be used for efficient operation, thereby improving the efficiency of single loading and unloading. In logistics scenarios with frequent loading and unloading, the overall operation time can be shortened, labor costs and vehicle dwelling time can be reduced, 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. The gull-wing door assembly 21 adopts a process structure of aluminum alloy frame plus 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 control system 7 and a wire-controlled brake system 2. The wire-controlled brake 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, which have a long driving range, high safety and strong stability. The front end of the aluminum alloy frame assembly 1 is provided with an electrical control system 7. The electrical control system 7 adopts automotive-grade VCU and electrical system, which are mature, stable and low-cost. The wire-controlled brake system 2 is installed at the rear end of the aluminum alloy frame assembly 1. Two sets of double-fork independent suspension systems 5 are respectively provided 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. 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 covers 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 intermediate 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 the need for 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, the front face assembly 16 and the 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 using a vacuum forming process, which makes them 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, while the rear bumper 17 is installed at the rear end of the frame assembly. This front-to-back distribution layout not only plays a protective role, but also enhances 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, which are respectively installed at the front end of the main structure 11 of the carriage and 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. 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 perceived, providing reliable data support for the realization of the unmanned driving function. The 3D laser radar 31 can capture the three-dimensional outline of the object, while 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 multiple sets 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 multiple sets of ultrasonic radars 34, the environmental information around the vehicle can be fully perceived, including the location, shape and distance of obstacles. Based on this 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 vehicle body. The bottom of the crossbeam 23 is connected to two sets of vertical plates 24, which are connected to the main structure 11 of the vehicle 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 vehicle body. These positioners 35 include a GPS / RTK positioning system and an IMU (inertial measurement unit) to provide accurate position information. In addition, display screens 36 are provided at both ends of the crossbeam 23 to intuitively present positioning and other information. These configurations help to better understand the position and status of the vehicle.

[0038] The specific usage and function of this embodiment are as follows: 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. The front face assembly 16 and rear bumper 17 at the bottom are manufactured using a vacuum forming process, which not only provides protection 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 works in conjunction with the four-wheel distributed drive system 3. The wheel-by-wire steering system 4 makes the entire vehicle steering flexible and agile, with a small turning radius. It can steer accurately 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 fully utilizes the power of each wheel assembly 8, ensuring the excellent power performance of the vehicle and driving the vehicle forward stably; at the same time, the double-fork independent suspension system 5 on both sides ensures the comfort of the chassis components while taking into account the stability of the control during the vehicle's driving, reducing the impact of bumps on the cargo 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; and 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 sets of 3D laser radars 31 fixed by the mounting bracket 32 ​​at the front end of the vehicle body structure 11 and the millimeter-wave radar 33 at its bottom work together to fully perceive the surrounding environment information. The 3D laser radar 31 can capture the three-dimensional outline of objects, 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, enabling the vehicle to have excellent environmental perception capabilities, helping to plan stable and reliable driving routes, avoid potential dangers, and achieve safe and efficient autonomous driving; multiple sets 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 crossbeam 23 and on one side of the vehicle body structure 11 can provide accurate position information, and the display screens 36 at both ends of the crossbeam 23 can intuitively present positioning and other information, facilitating a better understanding of the vehicle's position and status.

[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 they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention, and should all be included in the scope of protection of the present invention.

Claims

1. An unmanned logistics vehicle with a gull-wing door compartment, characterized by: 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 a wheel assembly (8) via a four-wheel distributed drive system (3); a carriage assembly is provided on the top of the aluminum alloy frame assembly (1), wherein the carriage assembly comprises a carriage main structure (11), wherein the carriage main structure (11) is provided on the top of the aluminum alloy frame assembly (1), wherein a gull-wing door assembly is provided on the top of the carriage main 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 structure (11) is connected to a carriage roof (22), and wherein two groups of gull-wing door assemblies (21) are rotatably provided 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 further comprises an electric 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 electric control system (7) is provided at the front end of the aluminum alloy frame assembly (1); and the wire-controlled braking system (2) is provided at the rear end of the aluminum alloy frame assembly (1); two sets of double-fork independent suspension systems (5) are respectively provided 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 further comprises two sets of side cover plates (12), the side cover plates (12) being provided on both sides of the aluminum alloy frame assembly (1) corresponding to the battery system (6), and two sets of switchable intermediate inspection cover plates (13) being provided on the top of the aluminum alloy frame assembly (1) 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 (14) is provided on the top of the aluminum alloy frame assembly (1) corresponding to the electric control system (7), and a rear inspection cover (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 provided 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: The carriage main structure (11) is further provided with a scanning assembly, the scanning assembly including 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), 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 multiple groups of ultrasonic radars (34), and multiple 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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