Shuttle vehicle and warehouse logistics system

Abstract

The application relates to a shuttle vehicle and a warehouse logistics system. The shuttle vehicle comprises a vehicle body, a fork assembly and a loading plate. The fork assembly is arranged on the vehicle body and comprises a fixed fork mechanism and a movable fork mechanism. The fixed fork mechanism and the movable fork mechanism are arranged in a first direction and are spaced apart. The movable fork mechanism is configured to move relative to the fixed fork mechanism in the first direction to adjust the distance between the two in the first direction. The loading plate is arranged on the vehicle body and located between the fixed fork mechanism and the movable fork mechanism and is configured to move relative to the fixed fork mechanism in the first direction. The shuttle vehicle can adjust the distance between the fork assembly and the fixed fork mechanism by moving the movable fork mechanism to adapt to different sizes of turnover boxes and efficiently grasp and carry the turnover boxes. Meanwhile, the shuttle vehicle can also move the loading plate to a suitable position to carry the turnover boxes, which adapts to the movement of the movable fork mechanism.

Description

Technical Field

[0001] This application relates to the field of warehousing and logistics equipment technology, and in particular to a shuttle vehicle and warehousing and logistics system. Background Technology

[0002] A shuttle is an intelligent material handling device specifically used in high-density automated storage and retrieval of goods. It enables automated storage and retrieval of goods, offering high efficiency, flexibility, and space-saving features, and its application is continuously expanding. Specifically, the shuttle travels on rack tracks to handle the inbound and outbound operations of boxes or cartons. It uses telescopic forks combined with a hook-and-grip device to remove boxes and transport them to designated exit locations. Simultaneously, it can store boxes from the entrance location into designated storage positions.

[0003] However, conventional shuttles are only compatible with a single size of turnover box (mostly 400mm wide). When faced with turnover boxes of different widths, they are not compatible and all turnover boxes need to be standardized, or multiple different styles of shuttles need to be used. Both of these approaches lead to an increase in the types of turnover boxes or shuttles, which directly leads to an increase in warehousing costs. Utility Model Content

[0004] Therefore, it is necessary to provide a shuttle and warehousing logistics system that can better adapt to different sizes of turnover boxes to address the above problems.

[0005] A shuttle vehicle, the shuttle vehicle comprising:

[0006] Vehicle body;

[0007] A fork assembly is disposed on the vehicle body and includes a fixed fork mechanism and a movable fork mechanism; the fixed fork mechanism and the movable fork mechanism are spaced apart in a first direction, and the movable fork mechanism is configured to be movable relative to the fixed fork mechanism in the first direction;

[0008] A cargo tray is disposed on the vehicle body and located between the fixed fork mechanism and the movable fork mechanism, and is configured to be movable relative to the fixed fork mechanism along the first direction.

[0009] In one embodiment, the shuttle further includes a drive mechanism that is tractively connected to the movable fork mechanism and the cargo tray, and is configured to drive the movable fork mechanism and the cargo tray to move relative to the fixed fork mechanism along the first direction.

[0010] In one embodiment, in the first direction, the loading plate is located at the midpoint between the fixed fork mechanism and the movable fork mechanism;

[0011] The drive mechanism is configured to drive the moving fork mechanism and the cargo tray to move in the same direction, and the ratio of the moving speed of the moving fork mechanism to the moving speed of the cargo tray is 2:1.

[0012] In one embodiment, the drive mechanism includes a driver, an adjustable pitch synchronous pulley, an adjustable pitch synchronous belt, a following synchronous pulley, and a following synchronous belt; the driver is driven to the moving fork mechanism via the adjustable pitch synchronous pulley and the adjustable pitch synchronous belt; the driver is driven to the cargo plate via the following synchronous belt and the following synchronous pulley.

[0013] The adjustable synchronous pulley and the accompanying synchronous pulley are configured to rotate at the same speed under the drive of the driver, and the gear ratio between them is 2:1.

[0014] In one embodiment, the adjustable pitch synchronous belt pulley includes an adjustable pitch driving pulley and an adjustable pitch driven pulley, the adjustable pitch driving pulley and the adjustable pitch driven pulley are spaced apart, the adjustable pitch synchronous belt is wound around the adjustable pitch driving pulley and the adjustable pitch driven pulley, and the driver is drivenly connected to the adjustable pitch driving pulley;

[0015] The accompanying synchronous belt pulley includes an accompanying driving pulley and an accompanying driven pulley, the accompanying driving pulley and the accompanying driven pulley are spaced apart, the accompanying synchronous belt is wound around the accompanying driving pulley and the accompanying driven pulley, and the accompanying driving pulley and the adjustable driven pulley are coaxially keyed together.

[0016] In one embodiment, the shuttle further includes at least two guide rods, all of which extend longitudinally along the first direction and are spaced apart from each other in a second direction, the second direction intersecting the first direction;

[0017] The moving fork mechanism and / or the cargo tray are disposed on all of the guide rods and configured to move along the guide rods.

[0018] In one embodiment, the shuttle further includes a first moving component disposed on the vehicle body and configured to drive the vehicle body to move along the first direction.

[0019] In one embodiment, the shuttle further includes an obstacle avoidance module disposed on the vehicle body.

[0020] A warehousing and logistics system includes shelves and a shuttle as described above, the shuttle being mounted on the shelves.

[0021] In one embodiment, the shelf is a double-deep shelf.

[0022] The aforementioned shuttle and warehousing logistics system features a fork assembly that can adjust the distance between itself and the fixed fork assembly by moving the movable fork mechanism to accommodate different sized containers, enabling efficient gripping and handling. Simultaneously, the shuttle can also move its pallet to position the container appropriately to accommodate the movable fork mechanism. Thus, the shuttle can be used to transport containers of different sizes. Specifically, the movable fork mechanism can move away from the fixed fork assembly along a first direction to increase the distance between them, enhancing its capacity and accommodating larger containers. Correspondingly, the pallet can move away from the fixed fork assembly along the first direction to better match the container's center of gravity. Similarly, the movable fork mechanism can move closer to the fixed fork assembly along the first direction to decrease the distance between them, accommodating smaller containers and making transportation more stable. Correspondingly, the pallet can move closer to the fixed fork assembly along the first direction to better match the container's center of gravity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the shuttle vehicle in one embodiment of this application.

[0025] Figure 2 for Figure 1 The diagram shows the structure of the shuttle car after the hidden part of the structure is shown.

[0026] Figure 3 for Figure 2 The diagram shows the structure of the shuttle from another angle.

[0027] Figure 4 for Figure 2 The diagram shows a partial structural schematic of the shuttle.

[0028] Figure 5 for Figure 4 The diagram shows an enlarged view of the shuttle at point A.

[0029] Figure 6 for Figure 4 The diagram shows an enlarged view of the shuttle at point B.

[0030] Explanation of reference numerals in the attached drawings: 100, shuttle; 10, vehicle body; 21, fixed fork mechanism; 22, moving fork mechanism; 30, pallet; 40, drive mechanism; 41, driver; 42, adjustable pitch synchronous pulley; 421, adjustable pitch driving pulley; 422, adjustable pitch driven pulley; 43, adjustable pitch synchronous belt; 44, following synchronous belt pulley; 441, following driving pulley; 442, following driven pulley; 45, following synchronous belt; 50, guide rod; 60, linear bearing; 70, first moving component; 71, first traveling wheel. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the term "and / or" appears, it merely describes the relationship between related objects and indicates that three relationships can exist. For example, A and / or B can represent the relationship between A and B: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects before and after it. Where the terms "first" and "second" appear, these terms are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature specified with "first" or "second" may explicitly or implicitly include at least one of those features. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, four, five, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] Please see Figures 1 to 4 An embodiment of this application provides a shuttle 100, including a vehicle body 10, a fork assembly, and a cargo tray 30. The fork assembly is disposed on the vehicle body 10 and includes a fixed fork mechanism 21 and a movable fork mechanism 22. The fixed fork mechanism 21 and the movable fork mechanism 22 are connected in a first direction (e.g., Figure 3 The movable fork mechanism 22 is configured to move relative to the fixed fork mechanism 21 in the first direction (as shown in the X direction) to adjust the distance between the two in the first direction. The cargo tray 30 is disposed on the vehicle body 10 and located between the fixed fork mechanism 21 and the movable fork mechanism 22, and is configured to move relative to the fixed fork mechanism 21 in the first direction.

[0038] Understandably, the pallet 30 is used to carry the turnover box between the fixed fork mechanism 21 and the moving fork mechanism 22, both of which can be telescopic forks. To achieve its normal function, the shuttle 100 may also include conventional moving components, lever hooks, and a main controller for controlling the operation of the shuttle 100. The moving components are used to drive the vehicle body 10 along the rack tracks to transport the turnover box. In one embodiment, the shuttle 100 can be used in a double-deep rack.

[0039] The shuttle 100 described above has a fork assembly whose distance from the fixed fork mechanism 21 can be adjusted by moving the movable fork mechanism 22 to accommodate turnover boxes of different sizes, enabling efficient gripping and handling. Simultaneously, the shuttle 100 can also move the carrying platform 30 to a suitable position to support the turnover boxes, adapting to the movement of the movable fork mechanism 22. Thus, the shuttle 100 can be used to transport turnover boxes of different sizes. Specifically, the movable fork mechanism 22 can move away from the fixed fork mechanism 21 along a first direction to increase the distance between them, improving its capacity and accommodating larger turnover boxes. Correspondingly, the carrying platform 30 can move away from the fixed fork mechanism 21 along the first direction to better match the center of gravity of the turnover box. Similarly, the movable fork mechanism 22 can move closer to the fixed fork mechanism 21 along the first direction to reduce the distance between them, accommodating smaller turnover boxes and making their transport more stable. Accordingly, the pallet 30 can move along the first direction toward the fixed fork mechanism 21 to better match the center of gravity of the turnover box.

[0040] The Shuttle 100 is applicable to e-commerce smart warehousing (multi-category small item turnover), pharmaceutical cold chain (reagent boxes of different specifications), food processing (material turnover boxes), smart manufacturing automated warehouses and other scenarios. It is especially suitable for automated warehouses that need to handle multiple batches and multiple specifications of turnover boxes. A single product can be compatible with different carriers, reducing costs while improving equipment operating efficiency.

[0041] Please refer to the following: Figure 5 and Figure 6 In some embodiments, the shuttle 100 further includes a drive mechanism 40, which is drively connected to the movable fork mechanism 22 and the cargo plate 30, and is configured to drive the movable fork mechanism 22 and the cargo plate 30 to move relative to the fixed fork mechanism 21 in a first direction.

[0042] In this way, the shuttle 100 can automatically drive the moving fork mechanism 22 and the carrying plate 30 through the drive mechanism 40 to adjust autonomously according to the width of the turnover box, be compatible with turnover boxes of different widths, efficiently grab and transport, and help improve the convenience and accuracy of adjustment.

[0043] In some embodiments, in a first direction, the loading platform 30 is positioned at the midpoint between the fixed fork mechanism 21 and the movable fork mechanism 22. The drive mechanism 40 is configured to drive the movable fork mechanism 22 and the loading platform 30 to move in the same direction, and the ratio of the moving speed of the movable fork mechanism 22 to the moving speed of the loading platform 30 is 2:1.

[0044] Understandably, the fact that the loading platform 30 is located at the midpoint between the fixed fork mechanism 21 and the moving fork mechanism 22 means that, in the first direction, the center of the loading platform 30 is located at the midpoint between the fixed fork mechanism 21 and the moving fork mechanism 22.

[0045] Thus, the pallet 30 is positioned between the fixed fork mechanism 21 and the moving fork mechanism 22, stably supporting the turnover box between them. Simultaneously, the pallet 30 moves relative to the moving fork mechanism 22, and the moving speed of the moving fork mechanism 22 is twice that of the pallet 30; that is, for every two units the moving fork mechanism 22 moves, the pallet 30 moves one unit in the same direction. Therefore, the pallet 30 and the moving fork mechanism 22 adjust synchronously, and the pallet 30 can always be positioned between the fixed fork mechanism 21 and the moving fork mechanism 22.

[0046] In some embodiments, the drive mechanism 40 includes a driver 41, an adjustable-pitch synchronous pulley 42, an adjustable-pitch synchronous belt 43, a following synchronous pulley 44, and a following synchronous belt 45. The driver 41 is driven to the moving fork mechanism 22 via the adjustable-pitch synchronous pulley 42 and the adjustable-pitch synchronous belt 43. The driver 41 is driven to the carrying plate 30 via the following synchronous belt 45 and the following synchronous pulley 44.

[0047] The adjustable-pitch synchronous pulley 42 and the following synchronous pulley 44 are configured to rotate at the same speed under the drive of the driver 41, and the gear ratio between them is 2:1.

[0048] Understandably, the diameter ratio of the adjustable-pitch synchronous belt pulley 42 to the traveling synchronous belt pulley 44 is 2:1, and since they rotate at the same speed, the running speed ratio of the adjustable-pitch synchronous belt 43 to the traveling synchronous belt 45 is 2:1.

[0049] The moving fork mechanism 22 can be connected to the adjustable timing belt 43 via a clamping device to move with it. The cargo tray 30 can be connected to the following timing belt 45 via a clamping device to move with it.

[0050] Thus, the drive mechanism 40 has high transmission efficiency and low cost, and can drive the adjustable pitch synchronous pulley 42 with different tooth numbers and the following synchronous pulley 44 to rotate at the same speed through the driver 41, thereby realizing the moving speed of the moving fork mechanism 22 and the different speed drive of the loading plate 30.

[0051] In some embodiments, the adjustable pitch synchronous pulley 42 includes an adjustable pitch driving pulley 421 and an adjustable pitch driven pulley 422, which are spaced apart. The adjustable pitch synchronous belt 43 is wound around the adjustable pitch driving pulley 421 and the adjustable pitch driven pulley 422, and the driver 41 is connected to the adjustable pitch driving pulley 421 for transmission.

[0052] The accompanying synchronous belt pulley 44 includes an accompanying driving pulley 441 and an accompanying driven pulley 442, which are spaced apart. The accompanying synchronous belt 45 is wound around the accompanying driving pulley 441 and the accompanying driven pulley 442, and the accompanying driving pulley 441 and the adjustable driven pulley 422 are coaxially keyed together.

[0053] Understandably, the pitch-adjusting drive pulley 421 and the pitch-adjusting driven pulley 422 are spaced apart in the first direction, and the pitch-adjusting driven pulley 422 is used to tension the pitch-adjusting synchronous belt 43. The following drive pulley 441 and the following driven pulley 442 are spaced apart in the first direction, and the following driven pulley 442 is used to tension the following synchronous belt 45.

[0054] Thus, the pitch-adjusting drive wheel 421 rotates under the drive of the driver 41, and drives the pitch-adjusting driven wheel 422 to rotate via the pitch-adjusting synchronous belt 43. The pitch-adjusting driven wheel 422 can then drive the accompanying drive wheel 441, which is coaxially connected to it, to rotate at the same speed and in the same direction.

[0055] In other embodiments, the drive mechanism 40 can also drive the moving fork mechanism 22 to move at a speed ratio of 2:1 to the load plate 30 through other drive methods. For example, the drive mechanism 40 includes a driver 41, an adjusting screw, an adjusting nut, a following screw, and a following nut. The adjusting nut is threadedly engaged with the adjusting screw, the moving fork mechanism 22 is connected to the adjusting nut, the following nut is threadedly engaged with the following screw, and the load plate 30 is connected to the following nut. The driver 41 drives the adjusting screw and the following screw and is configured to drive both to rotate at the same speed. The pitch ratio of the adjusting screw to the following screw is 2:1.

[0056] In some embodiments, the shuttle 100 further includes at least two guide rods 50, all of which extend longitudinally along a first direction and in a second direction (e.g., Figure 3 The first and second directions are spaced apart in the Y direction (as shown), and intersect each other. The moving fork mechanism 22 and / or the pallet 30 are located on all guide rods 50 and are configured to move along the guide rods 50.

[0057] Specifically, the first direction and the second direction can be perpendicular to each other. One of the first direction and the second direction can be the front-to-back direction of the vehicle body 10, and the other can be the left-to-right direction of the vehicle body 10.

[0058] In this way, the moving fork mechanism 22 and the cargo plate 30 can move stably in the first direction along the guide rod 50. The guide rod 50 provides support for both without affecting their movement capability.

[0059] In some embodiments, the shuttle 100 further includes a linear bearing 60, which is disposed on the guide rod 50 in the moving fork mechanism 22 so as to move along the guide rod 50 via the linear bearing 60.

[0060] Thus, a linear bearing 60 is installed on the parallel guide rod 50 to ensure that the moving fork mechanism 22 and the load plate 30 remain parallel and perform translational movement, reducing the probability of its movement being obstructed or jammed.

[0061] In some embodiments, the shuttle 100 further includes a first moving component 70 disposed on the vehicle body 10 and configured to drive the vehicle body 10 to move in a first direction.

[0062] Understandably, the first moving component 70 includes a first traveling wheel 71, which is disposed on the vehicle body 10.

[0063] Thus, the shuttle 100 moves in a first direction via the first moving component 70, thereby transporting the turnover box.

[0064] In some embodiments, the shuttle 100 further includes a second moving component (not shown), which is disposed on the vehicle body 10 and configured to drive the vehicle body 10 to move in a second direction.

[0065] Thus, the shuttle 100 can move in four directions (front, back, left, and right) through the first moving component 70 and the second moving component, and has omnidirectional mobility and adaptability to complex scenarios.

[0066] In some embodiments, the shuttle 100 further includes at least two first guide wheels, all of which are located on opposite sides of the vehicle body 10 in a second direction and are axially parallel to the height direction of the vehicle body 10.

[0067] In this way, the guide wheels can play a guiding role during the movement of the shuttle 100, which helps to improve the stability and smoothness of the shuttle 100's movement.

[0068] In some embodiments, the shuttle 100 further includes an obstacle avoidance module disposed on the vehicle body 10.

[0069] The obstacle avoidance module can be, but is not limited to, a laser obstacle avoidance module, an infrared obstacle avoidance module, an ultrasonic obstacle avoidance module, etc. The obstacle avoidance module is configured to emit an obstacle avoidance detection signal and detect the reflected signal generated after the obstacle avoidance detection signal touches an obstacle. Based on the presence, intensity, and reception time of the reflected signal, the module can determine whether there is an obstacle or the distance of the obstacle within the detection range.

[0070] Specifically, the first direction can be the front-back or left-right direction of the vehicle body 10. Obstacle avoidance modules can be installed in all four directions of the vehicle body 10, facing obstacles in each of the four directions respectively. The projections of the obstacle avoidance modules located on opposite sides of the vehicle body 10 along the first direction do not overlap. Taking the front-back direction as an example, the obstacle avoidance modules located on the front and rear sides of the vehicle body 10 are used to detect obstacles facing upwards on the front and rear sides of the vehicle body 10, and their projections along the first direction on a plane perpendicular to the first direction do not overlap. In other words, they are staggered.

[0071] In this way, the shuttle 100 can sense obstacles on the vehicle body 10 in the direction of travel through the obstacle avoidance module, thereby reducing the probability of collision. At the same time, the obstacle avoidance modules on both sides of the vehicle body 10 are staggered, that is, the obstacle avoidance module on the shuttle 100 is staggered from the obstacle avoidance module of the adjacent shuttle 100, to prevent the obstacle avoidance detection signals of the two from interfering with each other, thereby improving the accuracy of obstacle avoidance detection and reducing the probability of the shuttle 100 colliding.

[0072] Specifically, the obstacle avoidance module is a laser ranging module. The ranging range of the laser ranging module can be set from 0.1 meters to 12 meters and is connected to the main controller. The laser ranging module detects the presence of obstacles in an area 0.1 meters to 12 meters in front of the shuttle 100. If an obstacle is detected, it immediately sends feedback to the main controller of the shuttle 100, causing the controller to brake the shuttle 100 to prevent it from colliding with the obstacle in front, thereby protecting the safety of goods and people, as well as the safety of the shuttle 100 itself.

[0073] The aforementioned shuttle 100 features a fork assembly designed to be autonomously adjustable according to the width of the tote box. The tote box dimensions, pre-entered in the Warehouse Control System (WCS) of the warehouse logistics system, are sent to the shuttle 100 via instructions. Upon receiving the instructions, the shuttle 100 automatically adjusts the width of the fork assembly to match the corresponding tote box width. This allows a single shuttle 100 to be compatible with tote boxes of different widths, ranging from 200 to 850 mm, significantly reducing warehousing investment and operating costs while improving overall warehousing efficiency.

[0074] This application also provides a warehousing and logistics system, including a shuttle 100 mounted on the shelf.

[0075] Furthermore, the shelving is a double-deep shelving unit.

[0076] Each rack aisle has two rows of storage positions, which can hold two rows of goods consecutively. Both rows of goods on the rack can be transferred to the vehicle body 10 by the forks and hooks of the shuttle 100, and the goods on the vehicle body 10 can also be transferred to either row of storage positions on the rack by the forks and hooks of the shuttle 100.

[0077] In this way, the storage capacity of the shelves is increased, the space utilization rate is higher, and it can be better suited for large-volume storage scenarios.

[0078] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shuttle vehicle, characterized in that, The shuttle vehicle includes: Vehicle body (10); A fork assembly is provided on the vehicle body (10) and includes a fixed fork mechanism (21) and a movable fork mechanism (22); the fixed fork mechanism (21) and the movable fork mechanism (22) are spaced apart in a first direction, and the movable fork mechanism (22) is configured to be movable relative to the fixed fork mechanism (21) in the first direction; A cargo tray (30) is disposed on the vehicle body (10) and located between the fixed fork mechanism (21) and the movable fork mechanism (22), and is configured to be movable relative to the fixed fork mechanism (21) in the first direction.

2. The shuttle vehicle according to claim 1, characterized in that, The shuttle also includes a drive mechanism (40) that is connected to the moving fork mechanism (22) and the cargo plate (30) and is configured to drive the moving fork mechanism (22) and the cargo plate (30) to move relative to the fixed fork mechanism (21) in the first direction.

3. The shuttle vehicle according to claim 2, characterized in that, In the first direction, the loading plate (30) is located at the middle position between the fixed fork mechanism (21) and the moving fork mechanism (22); The drive mechanism (40) is configured to drive the moving fork mechanism (22) and the cargo plate (30) to move in the same direction, and the ratio of the moving speed of the moving fork mechanism (22) to the moving speed of the cargo plate (30) is 2:

1.

4. The shuttle vehicle according to claim 3, characterized in that, The drive mechanism (40) includes a driver (41), an adjustable-pitch synchronous pulley (42), an adjustable-pitch synchronous belt (43), a following synchronous pulley (44), and a following synchronous belt (45); the driver (41) is connected to the moving fork mechanism (22) via the adjustable-pitch synchronous pulley (42) and the adjustable-pitch synchronous belt (43); the driver (41) is connected to the load plate (30) via the following synchronous belt (45) and the following synchronous pulley (44). The adjustable synchronous pulley (42) and the accompanying synchronous pulley (44) are configured to rotate at the same speed under the drive of the driver (41), and the gear ratio between them is 2:

1.

5. The shuttle vehicle according to claim 4, characterized in that, The adjustable pitch synchronous pulley (42) includes an adjustable pitch driving pulley (421) and an adjustable pitch driven pulley (422), the adjustable pitch driving pulley (421) and the adjustable pitch driven pulley (422) are spaced apart, the adjustable pitch synchronous belt (43) is wound around the adjustable pitch driving pulley (421) and the adjustable pitch driven pulley (422), and the driver (41) is connected to the adjustable pitch driving pulley (421) in a driving transmission. The accompanying synchronous belt pulley (44) includes an accompanying driving pulley (441) and an accompanying driven pulley (442). The accompanying driving pulley (441) and the accompanying driven pulley (442) are spaced apart. The accompanying synchronous belt (45) is wound around the accompanying driving pulley (441) and the accompanying driven pulley (442). The accompanying driving pulley (441) and the adjustable driven pulley (422) are coaxially keyed together.

6. The shuttle vehicle according to claim 1, characterized in that, The shuttle also includes at least two guide rods (50), all of which extend longitudinally along the first direction and are spaced apart from each other in the second direction, the second direction intersecting the first direction; The moving fork mechanism (22) and / or the cargo plate (30) are located on all of the guide rods (50) and are configured to move along the guide rods (50).

7. The shuttle vehicle according to any one of claims 1-6, characterized in that, The shuttle also includes a first moving component (70), which is disposed on the vehicle body (10) and configured to drive the vehicle body (10) to move along the first direction.

8. The shuttle vehicle according to any one of claims 1-6, characterized in that, The shuttle also includes an obstacle avoidance module, which is located on the vehicle body (10).

9. A warehousing and logistics system, characterized in that, It includes a shelf and a shuttle as described in any one of claims 1-8, the shuttle being disposed on the shelf.

10. The warehousing and logistics system according to claim 9, characterized in that, The shelving unit is a double-deep shelving unit.

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