Energy absorption structure and shuttle vehicle

Abstract

The utility model provides an energy absorbing structure and shuttle vehicle relates to shuttle vehicle energy absorbing technical field, through adding counter -propulsion medium in piston chamber of energy absorbing fixed component, when the force -end of collision force occurs, the moving end compresses inwards, counter -propulsion medium forms the counter -force buffer, absorbs the collision energy, thereby effectively protects the anticollision object, whole structure is simple, and the cost is low, and can be applicable to the collision situation under various speeds, alleviate the technical problem that the energy absorbing mechanism of shuttle vehicle in the prior art cannot be applicable to the multiple speed impact situation, and the structure is complex, and the cost is higher.

Description

Technical Field

[0001] This utility model relates to the field of shuttle vehicle energy absorption technology, and in particular to an energy absorption structure and a shuttle vehicle. Background Technology

[0002] With the rapid development of automated warehousing systems, automated storage and retrieval systems (AS / RS) have become an important component of modern logistics warehousing. In AS / RS, shuttles, as the core handling equipment, achieve efficient storage and retrieval of goods through reciprocating movement on the automated storage tracks. During this movement, occasional shuttle position recognition errors or loss of control may occur, resulting in collisions with track stops. Furthermore, the speed of the shuttle at these collisions can be random, ranging from low to medium to high. Collisions can damage the overall frame and internal components of the shuttle, rendering it inoperable and incurring economic losses from replacing parts.

[0003] The existing shuttle car energy absorption mechanism uses polyurethane anti-collision blocks. This solution can solve the problem of low-speed collisions between the shuttle car and the track stops, but at medium and high speeds, the polyurethane anti-collision blocks have low energy absorption and are prone to failure.

[0004] In addition, there is a solution of adding a spring energy-absorbing mechanism to the track stop. This solution can solve the problem of low-speed collision between the shuttle car and the track stop. However, the spring energy absorption is insufficient at medium and high speeds. If a large amount of energy absorption is required, the spring length needs to be set very long, which is not practical in actual application. At the same time, since the spring energy-absorbing mechanism is configured on the track stop, two sets of mechanisms need to be installed at both ends of the track in each tunnel of the vertical storage, which increases the cost. Utility Model Content

[0005] The purpose of this utility model is to provide an energy-absorbing structure and shuttle to alleviate the technical problems of existing shuttle energy-absorbing mechanisms that are not applicable to various speed impact situations, and that are complex in structure and high in cost.

[0006] In a first aspect, the energy-absorbing structure provided by this utility model includes: an energy-absorbing moving component and an energy-absorbing fixing component;

[0007] The energy-absorbing fixing member is used for installation on the impact protection, and the energy-absorbing fixing member has a piston chamber;

[0008] One end of the energy-absorbing moving member is the force-receiving end, and the other end of the energy-absorbing moving member is the moving end. The moving end is configured to be disposed in the piston chamber and is capable of piston movement in the piston chamber.

[0009] The piston chamber contains a thrust medium, which is used to apply a pushing force to the moving end in the direction of extending out of the piston chamber.

[0010] In an optional implementation,

[0011] The energy-absorbing moving component includes a first energy-absorbing box;

[0012] The force-bearing end is set as the first energy-absorbing box, and the first energy-absorbing box has a honeycomb-shaped energy-absorbing plate structure inside;

[0013] The side of the first energy-absorbing box away from the energy-absorbing fixing member is the force-bearing surface, and the side of the first energy-absorbing box that is perpendicular to the force-bearing surface is provided with a first energy-absorbing hole.

[0014] In an optional implementation,

[0015] The energy-absorbing moving component also includes a piston rod;

[0016] One end of the piston rod extends into the piston chamber, and the outer surface of the piston rod extends outward to form a boss structure, which is used to prevent the piston rod from extending out of the piston chamber.

[0017] In an optional implementation,

[0018] The outer surface of the piston rod is recessed inward to form a sealing groove, which is used to install a sealing ring. The sealing ring is used to seal the piston rod and the inner wall of the piston chamber.

[0019] In an optional implementation,

[0020] The energy-absorbing fixing component includes a second energy-absorbing box, a connecting plate, and a piston cylinder;

[0021] The piston chamber is formed inside the piston cylinder, the piston cylinder is disposed in the second energy-absorbing box, and the inner wall of the energy-absorbing box is connected to the outer wall of the piston cylinder through a plurality of connecting plates;

[0022] The second energy-absorbing box has a second energy-absorbing hole on its side wall.

[0023] In an optional implementation,

[0024] The energy-absorbing fixing component also includes a piston baffle;

[0025] A baffle mounting plate is connected between the second energy-absorbing box and the piston cylinder. The piston baffle is connected to the baffle mounting plate. The piston baffle has a through hole. The wall of the through hole extends into the piston chamber and has a protruding edge. The protruding edge can abut against the boss structure to prevent the piston rod from coming out of the piston chamber.

[0026] In an optional implementation,

[0027] The piston cylinder is provided with a pressure detection port, which is used by the detection device to detect the pressure inside the piston chamber.

[0028] The piston cylinder is provided with a medium delivery port, which is used to deliver the reverse thrust medium into the piston chamber.

[0029] In an optional implementation,

[0030] The energy-absorbing structure also includes connecting components;

[0031] The connecting member is connected to the end of the energy-absorbing fixing member away from the energy-absorbing moving member, and the connecting member is used to connect the energy-absorbing fixing member to the impact barrier.

[0032] In an optional implementation,

[0033] The two opposite sides of the connecting member are bent and extended to form a first mounting plate, which is used to connect the energy-absorbing fixing member.

[0034] The connecting member has two opposite sides bent and extended to form a second mounting plate, which is used to connect the anti-collision object.

[0035] Secondly, the shuttle provided by this utility model includes a shuttle body and the energy-absorbing structure;

[0036] The energy-absorbing structure is located at the point where the shuttle car body collides with the track stop.

[0037] The energy-absorbing structure provided by this utility model adds a reverse thrust medium to the piston chamber of the energy-absorbing fixed component. When the impact force is applied to the impact end, the moving end is compressed inward, and the reaction force formed by the reverse thrust medium buffers and absorbs the impact energy, thereby effectively protecting the anti-collision object. The overall structure is simple, the cost is low, and it can be applied to collision situations at various speeds. It alleviates the technical problems of existing shuttle energy-absorbing mechanisms that cannot be applied to multiple speed impact situations and have complex structures and high costs. Attached Figure Description

[0038] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of the energy-absorbing structure provided in the embodiment of this utility model;

[0040] Figure 2 A schematic diagram of the energy-absorbing structure installed on the shuttle body according to an embodiment of the present invention;

[0041] Figure 3 This is a schematic diagram of the energy-absorbing fixing component in the energy-absorbing structure provided in the embodiment of this utility model;

[0042] Figure 4 An exploded structural diagram of the energy-absorbing fixing component and the connecting component in the energy-absorbing structure provided in the embodiment of this utility model;

[0043] Figure 5 A top-view structural diagram of the energy-absorbing structure provided in an embodiment of this utility model;

[0044] Figure 6 This is a cross-sectional view of the energy-absorbing structure under low-speed collision provided in an embodiment of the present invention.

[0045] Figure 7 This is a cross-sectional view of the energy-absorbing structure under medium-speed collision provided in an embodiment of the present invention.

[0046] Figure 8 This is a cross-sectional view of the energy-absorbing structure under high-speed collision provided in an embodiment of the present invention.

[0047] Icons: 1-Shuttle car body; 2-Energy-absorbing structure; 3-Vertical warehouse track; 4-Rail stop; 100-Energy-absorbing moving component; 110-First energy-absorbing box; 111-First energy-absorbing hole; 120-Piston rod; 130-Boss structure; 140-Sealing ring; 200-Energy-absorbing fixing component; 210-Second energy-absorbing box; 211-Second energy-absorbing hole; 220-Connecting plate; 230-Piston cylinder; 231-Pressure detection port; 232-Media conveying port; 240-Piston baffle; 241-Protruding edge; 250-Baffle mounting plate; 300-Connecting component; 310-First mounting plate; 320-Second mounting plate. Detailed Implementation

[0048] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0052] like Figures 1-5 As shown, the energy-absorbing structure 2 provided in this embodiment includes: an energy-absorbing moving member 100 and an energy-absorbing fixing member 200; the energy-absorbing fixing member 200 is used to be installed on the impact barrier, and has a piston chamber inside. One end of the energy-absorbing moving member 100 is a force-bearing end, and the other end is a moving end, which is disposed in the piston chamber and can perform piston-like reciprocating motion in the chamber. The piston chamber stores a thrust medium, which can be compressed air or other gaseous or liquid fluids, preferably compressed air. When the thrust medium is compressed inward at the moving end, it generates a pushing force in the extension direction, forming a buffer reaction force, thereby realizing the energy absorption and buffering functions.

[0053] The energy-absorbing moving component 100 includes a first energy-absorbing box 110, which serves as the force-bearing end. The first energy-absorbing box 110 has a honeycomb-shaped energy-absorbing plate structure inside, which has good structural strength and controllable collapse characteristics.

[0054] The side of the first energy-absorbing box 110 away from the energy-absorbing fixing member 200 forms a force-bearing surface, which is used to directly bear the collision load. Two first energy-absorbing holes 111 are provided on the side perpendicular to the force-bearing surface. They are used to provide guidance during the compression process to ensure that the first energy-absorbing box 110 collapses stably along a predetermined path and prevents displacement or jamming.

[0055] The energy-absorbing moving component 100 also includes a piston rod 120, one end of which extends into the piston chamber. The outer surface of the piston rod 120 is provided with an outwardly extending boss structure 130. When the piston rod 120 moves outward to its limit position, the boss contacts the internal structure of the piston chamber, restricting its further extension and preventing it from coming out.

[0056] The outer surface of the piston rod 120 is also provided with an inwardly recessed sealing groove, in which a sealing ring 140 is installed to achieve a dynamic seal between the piston rod 120 and the inner wall of the piston chamber, preventing leakage of the reverse thrust medium and ensuring stable and effective pressure in the chamber.

[0057] The energy-absorbing fixing component 200 includes a second energy-absorbing box 210, a connecting plate 220, and a piston cylinder 230; the piston cylinder 230 is located inside the second energy-absorbing box 210, and its inner cavity forms a piston chamber. The outer wall of the piston cylinder 230 is fixedly connected to the inner wall of the second energy-absorbing box 210 through multiple connecting plates 220 to form a stable support structure.

[0058] The side wall of the second energy-absorbing box 210 is provided with three second energy-absorbing holes 211, which are used to guide the collapse direction of the second energy-absorbing box 210 during high-energy collisions, thereby improving the overall energy absorption consistency and reliability.

[0059] The energy-absorbing fixing component 200 also includes a piston baffle 240. A baffle mounting plate 250 is provided between the second energy-absorbing box 210 and the piston cylinder 230. The piston baffle 240 is connected to the second energy-absorbing box 210 through the baffle mounting plate 250. The piston baffle 240 has a through hole in the center for the piston rod 120 to pass through. The hole wall extends towards the piston chamber to form a protrusion 241. During the rebound of the piston rod 120, the protrusion 241 abuts against the boss structure 130 on the piston rod 120, which plays a limiting role and prevents the piston rod 120 from accidentally dislodging from the piston chamber, ensuring the safety of the structure's reset.

[0060] The piston cylinder 230 is also equipped with a pressure detection port 231 and a medium delivery port 232. The pressure detection port 231 is used to connect to an external pressure detection device to monitor the pressure changes in the piston chamber in real time, facilitating the replenishment of the reverse thrust medium. The medium delivery port 232 is used to fill or adjust the reverse thrust medium, such as compressed air, into the piston chamber to ensure that the system can maintain the design pressure under different operating conditions and achieve optimal buffering performance. It should be noted that both the medium delivery port 232 and the pressure detection port 231 are equipped with an air core structure, which delivers compressed air into the piston chamber and prevents compressed air leakage from the medium delivery port 232 and the pressure detection port 231.

[0061] The energy-absorbing structure 2 also includes a connecting member 300, which is located at the end of the energy-absorbing fixed member 200 away from the energy-absorbing moving member 100, and is used to securely install the entire energy-absorbing structure 2 onto the impact barrier. The two opposite sides of the connecting member 300 are bent and extended to form a first mounting plate 310 and a second mounting plate 320, respectively: the first mounting plate 310 is used to connect with the energy-absorbing fixed member 200, for example, by fixing it to the second energy-absorbing box 210 with screws; the second mounting plate 320 is used to connect with the impact barrier (such as the shuttle body 1), for example, by connecting it with screws, so as to achieve reliable assembly of the overall structure.

[0062] This embodiment also provides a shuttle, including a shuttle body 1 and the aforementioned energy-absorbing structure 2. The energy-absorbing structure 2 is set at the position where the shuttle body 1 and the track stop 4 may collide. Typically, one energy-absorbing structure 2 is arranged on each side of the shuttle body 1, while two track stops 4 are correspondingly set at both ends of the vertical storage track 3. The positions are matched to each other to ensure that the energy absorption mechanism can be accurately triggered when a collision occurs.

[0063] Specifically, the first energy-absorbing box 110 has a built-in honeycomb collapse energy-absorbing structure 2, which works in conjunction with the first energy-absorbing holes 111 on both sides to achieve guided collapse; the second energy-absorbing box 210 has three second energy-absorbing holes 211, which are also used for collapse guidance. The second energy-absorbing box 210 is connected to the first mounting plate 310 on the connecting member 300 by screws, while the second mounting plate 320 of the connecting member 300 is fixedly connected to the shuttle body 1 by screws, realizing modular installation and quick replacement.

[0064] like Figure 6 As shown, in a low-speed collision scenario, when the shuttle body 1 contacts the track stop 4, the first energy-absorbing box 110 first bears the impact force, pushing the piston rod 120 inward to compress, resulting in a reduction in the volume of the piston chamber and an increase in the internal compressed air pressure, generating a reverse thrust and forming an elastic buffering effect. There is no structural damage during this stage. After the collision ends and the external force disappears, the air pressure inside the piston chamber pushes the piston rod 120 and the first energy-absorbing box 110 back to their initial positions. The entire structure remains intact and can continue to operate without maintenance.

[0065] like Figure 7 As shown, in a medium-speed collision, the impact force is relatively large. In addition to the air pressure buffer within the piston chamber, the honeycomb structure inside the first energy-absorbing box 110 begins to undergo plastic deformation and gradually collapses, absorbing excess kinetic energy. At this time, the thrust medium still provides initial buffering, while the honeycomb structure bears the subsequent energy dissipation. After the collision, only the first energy-absorbing box 110 needs to be replaced due to deformation; other components such as the piston cylinder 230 and connecting member 300 can still be reused, resulting in low maintenance costs.

[0066] like Figure 8As shown, in a high-speed collision, the impact energy is even higher. After the first energy-absorbing box 110 completes compression and partial collapse, its rear end face contacts the second energy-absorbing box 210. Subsequently, the second energy-absorbing box 210 also begins to collapse, further absorbing the remaining impact energy through its own structural deformation. At this time, the two-stage energy-absorbing structures 2 work together to maximize the protection of the overall frame and internal precision components of the shuttle vehicle body 1. After the collision, the entire energy-absorbing structure 2 needs to be replaced due to damage to multiple components, but the shuttle vehicle body 1 itself is undamaged and can quickly resume operation.

[0067] In summary, the energy-absorbing structure 2, by combining gas thrust buffering and collapse energy absorption mechanisms, effectively addresses collisions of different speed levels. It also boasts advantages such as simple structure, low cost, sensitive response, reusability, and easy replacement, significantly improving the operational safety and economy of the shuttle in automated warehousing environments.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An energy-absorbing structure (2), characterized in that, include: Energy-absorbing moving component (100) and energy-absorbing fixed component (200); The energy-absorbing fixing member (200) is used to be installed on the impact barrier, and the energy-absorbing fixing member (200) has a piston chamber; One end of the energy-absorbing moving member (100) is the force-receiving end, and the other end of the energy-absorbing moving member (100) is the moving end. The moving end is configured to be disposed in the piston chamber and is capable of piston movement in the piston chamber. The piston chamber contains a thrust medium, which is used to apply a pushing force to the moving end in the direction of extending out of the piston chamber.

2. The energy-absorbing structure (2) according to claim 1, characterized in that, The energy-absorbing moving component (100) includes a first energy-absorbing box (110); The force-bearing end is set as the first energy-absorbing box (110), and the first energy-absorbing box (110) has a honeycomb-shaped energy-absorbing plate structure inside; The side of the first energy-absorbing box (110) away from the energy-absorbing fixing member (200) is the force-bearing surface, and the side of the first energy-absorbing box (110) that is perpendicular to the force-bearing surface is provided with a first energy-absorbing hole (111).

3. The energy-absorbing structure (2) according to claim 2, characterized in that, The energy-absorbing moving component (100) also includes a piston rod (120); One end of the piston rod (120) extends into the piston chamber, and the outer surface of the piston rod (120) extends outward to form a boss structure (130), which is used to prevent the piston rod (120) from extending out of the piston chamber.

4. The energy-absorbing structure (2) according to claim 3, characterized in that, The outer surface of the piston rod (120) is recessed inward to form a sealing groove, which is used to install a sealing ring (140) and the sealing ring (140) is used to seal the piston rod (120) and the inner wall of the piston chamber.

5. The energy-absorbing structure (2) according to claim 4, characterized in that, The energy-absorbing fixing component (200) includes a second energy-absorbing box (210), a connecting plate (220), and a piston cylinder (230); The piston chamber is formed inside the piston cylinder (230). The piston cylinder (230) is disposed inside the second energy-absorbing box (210), and the inner wall of the energy-absorbing box is connected to the outer wall of the piston cylinder (230) through a plurality of connecting plates (220). The second energy-absorbing box (210) has a second energy-absorbing hole (211) on its side wall.

6. The energy-absorbing structure (2) according to claim 5, characterized in that, The energy-absorbing fixing component (200) also includes a piston baffle (240); A baffle mounting plate (250) is connected between the second energy-absorbing box (210) and the piston cylinder (230). The piston baffle (240) is connected to the baffle mounting plate (250). The piston baffle (240) has a through hole. The wall of the through hole extends into the piston chamber and has a protruding edge (241). The protruding edge (241) can abut against the boss structure (130) to prevent the piston rod (120) from coming out of the piston chamber.

7. The energy-absorbing structure (2) according to claim 5, characterized in that, The piston cylinder (230) is provided with a pressure detection port (231), which is used by the detection device to detect the pressure inside the piston chamber; The piston cylinder (230) is provided with a medium delivery port (232), which is used to deliver the reverse thrust medium into the piston chamber.

8. The energy-absorbing structure (2) according to claim 1, characterized in that, The energy-absorbing structure (2) also includes a connecting member (300); The connecting member (300) is connected to the end of the energy-absorbing fixing member (200) away from the energy-absorbing moving member (100), and the connecting member (300) is used to connect the energy-absorbing fixing member (200) to the impact barrier.

9. The energy-absorbing structure (2) according to claim 8, characterized in that, The connecting member (300) has two opposite sides bent and extended to form a first mounting plate (310), which is used to connect the energy-absorbing fixing member (200). The connecting member (300) has another two opposite sides bent and extended to form a second mounting plate (320), which is used to connect the anti-collision object.

10. A shuttle vehicle, characterized in that, It includes a shuttle body (1) and an energy-absorbing structure (2) as described in any one of claims 1-9; The energy-absorbing structure (2) is located at the point where the shuttle body (1) collides with the track stop (4).

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