Stacker vertical storage device with anti-collision buffer structure

Abstract

The utility model discloses a kind of anti-collision buffer structure's stacking machine vertical warehouse device, it is related to stacking machine vertical warehouse technical field, to solve the technical problem that current protection structure lacks buffer and is easy to cause equipment damage, including vertical warehouse shelf and the anti-collision buffer mechanism set on vertical warehouse shelf, the anti-collision buffer mechanism includes the connecting frame being set between front upright column and rear upright column, buffering plate is set in the connecting frame, buffering assembly is also set on the buffering plate with the side end contact of shelf plate, the end of buffering plate is equipped with anti-collision plate, the anti-collision plate extends from front upright column bottom to the position at front upright column middle part. The utility model has the advantages that key area of front upright column is covered by arc anti-collision plate, spring steel buffering plate wave shape and V type structure high-efficiency energy absorption, bumper spring damping rod secondary buffering, U type positioning plate dispersion stress, ball reduce resistance, multi-stage buffering, reduce equipment damage and accident risk, reduce maintenance cost and downtime.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane vertical warehouse technology, and more specifically, to a stacker crane vertical warehouse device with an anti-collision buffer structure. Background Technology

[0002] As the logistics and warehousing industry upgrades towards automation and intelligence, stacker crane automated warehouses (AS / RS) have been widely used in manufacturing, e-commerce logistics, food and pharmaceutical fields due to their advantages of high space utilization and fast storage and retrieval efficiency. Their core working logic involves the precise movement of the stacker crane along guide rails, combined with the lifting and extension of the forks, to achieve automated storage and retrieval of goods between high-level racks. It is one of the core pieces of equipment in modern warehousing systems.

[0003] In the actual operation of stacker crane-based automated storage and retrieval systems (AS / RS), due to factors such as prolonged high-load operation, instantaneous errors in the control system, changes in track flatness, or sensor malfunctions, the stacker crane may deviate from its intended trajectory during horizontal movement and collide with the steel structural columns of the AS / RS. To prevent damage to the columns from impacts, rigid anti-collision structures are typically installed on the outer side of the column base. While these rigid protective structures offer some protection to the columns, they themselves possess almost no energy absorption or cushioning capacity. When a collision occurs, the enormous impact force is directly transmitted through the rigid structure to the stacker crane itself and its critical components (such as wheels, lifting devices, and forks), easily leading to structural damage, transmission system failure, or loss of precision. This not only increases equipment maintenance costs and downtime but also poses a risk of secondary safety accidents caused by equipment malfunctions. Therefore, we propose a stacker crane-based AS / RS device with an anti-collision buffer structure. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a stacker crane vertical warehouse device with an anti-collision buffer structure to solve the technical problem that the current protective structure lacks buffer and is prone to equipment damage.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a stacker crane automated storage and retrieval system (AS / RS) device with an anti-collision buffer structure, comprising an AS / RS rack and an anti-collision buffer mechanism installed on the AS / RS rack. The AS / RS rack includes symmetrically arranged front and rear uprights and rack plates installed between the front and rear uprights by bolts. The rack plates are symmetrically provided with pick-and-place slots. The anti-collision buffer mechanism includes a connecting frame disposed between the front and rear uprights. A buffer plate is disposed within the connecting frame. The buffer plate is also provided with a buffer component that contacts the side end of the rack plate. An anti-collision plate is installed at the end of the buffer plate. The anti-collision plate is arc-shaped and extends from the bottom of the front upright to the middle of the front upright.

[0006] Preferably, a first connecting rod is provided at the top of the front column and the rear column, and second connecting rods are provided at equal intervals between the first connecting rods.

[0007] Preferably, the buffer plate is made of spring steel. The buffer plate includes a mounting part, a front buffer part, a first connecting part, a side buffer part, and a second connecting part along the long axis. The mounting part is connected to the connecting frame. The front buffer part is bent several times along the long axis to form a wave shape. The first connecting part is bent inward in an arc shape to avoid the front column.

[0008] Preferably, the side buffer is disposed on the front buffer, and the side buffer has several V-shaped bends along its long axis. The second connecting part is disposed at the end of the side buffer and is curved in an arc to avoid the front pillar. The anti-collision plate is installed at the ends of the first connecting part and the second connecting part.

[0009] Preferably, the buffer assembly includes a first mounting plate disposed between the side buffer portions and a second mounting plate disposed on the side buffer portions, and both the first mounting plate and the second mounting plate are provided with buffers.

[0010] Preferably, the buffer includes a spring and a damping rod disposed inside the spring, and a positioning plate is disposed at the end of the buffer. The positioning plate is U-shaped, and a ball bearing is disposed on the inner wall of the U-shape of the positioning plate. The positioning plate wraps around the side end of the shelf panel, and the ball bearing contacts the side end of the shelf panel.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model designs the anti-collision plate as an arc shape, which can cover the front and side of the front column. Secondly, the height of the anti-collision plate is designed to cover the key area from the bottom to the middle of the front column. When the stacker crane collides, the arc surface of the anti-collision plate, together with the buffer plate and the buffer, can first disperse the local impact force, so as to avoid the anti-collision plate or the contact part of the stacker crane from deforming and cracking due to concentrated force. At the same time, it prolongs the collision contact time, initially reduces the instantaneous impact intensity, and solves the problem that the current protective structure lacks buffer and is prone to equipment damage.

[0012] 2. This utility model utilizes a buffer plate, segmented into a wave-shaped front buffer section and a V-shaped side buffer section. Upon a frontal impact, the wave-shaped structure extends the energy absorption path through multiple bending deformations, efficiently converting collision kinetic energy. Upon an oblique impact, the V-shaped side buffer section absorbs lateral force through compression deformation, preventing the buffer plate from breaking due to unidirectional force. A buffer with springs and damping rods is installed on the buffer plate, providing basic elastic buffering force to offset most of the impact force, achieving secondary lateral buffering and further reducing the risk of damage to critical components of the stacker crane (such as wheels and lifting devices). Finally, the positioning plate at the end of the buffer is designed in a U-shape and wraps around the side of the rack plate, transmitting the impact force borne by the buffer plate to the rack. The system forms a force-distributing path of "upright-buffer plate-shelf plate," preventing impact force from concentrating on the front upright and preventing the upright from bending or deforming due to excessive local stress. This protects the overall structural stability of the automated storage and retrieval system (AS / RS). Furthermore, when the front of the rack is impacted, the positioning plate can move backward along the shelf plate to limit the front buffer, ensuring stability in the deformation buffer direction. Ball bearings on the inner wall of the U-shaped positioning plate convert the sliding friction between the positioning plate and the shelf plate into rolling friction, reducing the moving resistance of the positioning plate when the buffer plate deforms. This further enhances the stability and reliability of the buffer system. The first and second connecting parts of the buffer plate are designed in an arc shape to avoid the front upright, preventing interference between the buffer mechanism and the upright, and ensuring that the protective function and the efficiency of AS / RS operations do not interfere with each other. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the anti-collision buffer mechanism of this utility model; Figure 4 This is a schematic diagram of the partial anti-collision buffer mechanism of this utility model; Figure 5 This is a schematic diagram of the buffer structure of the anti-collision buffer mechanism of this utility model; Figure 6 This is a schematic diagram of the buffer plate structure of this utility model.

[0014] Explanation of the numbers in the diagram: 100, Automated Storage and Retrieval System (AS / RS); 101, Front Upright; 102, Rear Upright; 103, First Connecting Rod; 104, Second Connecting Rod; 105, Shelf Panel; 1051, Pick-and-Place Slot; 200, Anti-collision Buffer Mechanism; 201, Connecting Frame; 202, Buffer Plate; 2021, Mounting Part; 2022, Front Buffer Part; 2023, First Connecting Part; 2024, Side Buffer Part; 2025, Second Connecting Part; 203, Anti-collision Plate; 204, First Mounting Plate; 205, Second Mounting Plate; 206, Buffer; 207, Positioning Plate; 2071, Ball Bearing. Detailed Implementation

[0015] like Figures 1 to 6 As shown, this utility model relates to a stacker crane automated storage and retrieval system (AS / RS) with an anti-collision buffer structure, including an AS / RS rack 100 and an anti-collision buffer mechanism 200 installed on the AS / RS rack 100. The AS / RS rack 100 includes symmetrically arranged front uprights 101 and rear uprights 102, and a rack plate 105 bolted between the front uprights 101 and rear uprights 102. The rack plate 105 has symmetrically arranged pick-and-place slots 1051, which facilitate the stacker crane to pick up and place goods. The anti-collision buffer mechanism 200 includes a connecting frame 201 between the front uprights 101 and rear uprights 102. A buffer plate 202 is installed inside the connecting frame 201. The buffer plate 202 is also provided with a buffer component that contacts the side end of the rack plate 105. An anti-collision plate 203 is installed at the end of the buffer plate 202. The anti-collision plate 203 is arc-shaped and extends from the bottom of the front uprights 101 to the middle of the front uprights 101. This utility model uses an arc-shaped anti-collision plate 203 to cover the critical area of ​​the front column 101, a wave-shaped and V-shaped structure of spring steel buffer plate 202 to efficiently absorb energy, a spring damping rod of buffer 206 for secondary buffering, a U-shaped positioning plate 207 to disperse the force, and a ball bearing 2071 to reduce drag. This multi-stage buffering reduces equipment damage and accident risks, and reduces maintenance costs and downtime.

[0016] Specifically, a first connecting rod 103 is provided at the top of the space between the front upright 101 and the rear upright 102, and second connecting rods 104 are provided at equal intervals between the first connecting rods 103. The first connecting rods 103 connect the front upright 101 and the rear upright 102 to increase their strength, while the second connecting rods 104 connect the first connecting rods 103 to ensure the stability of the rack.

[0017] Furthermore, the buffer plate 202 is made of spring steel. Along its long axis, the buffer plate 202 includes a mounting part 2021, a front buffer part 2022, a first connecting part 2023, a side buffer part 2024, and a second connecting part 2025. The mounting part 2021 is connected to the connecting frame 201. The front buffer part 2022 bends several times along its long axis to form a wave shape. The first connecting part 2023 bends inward in an arc shape to avoid the front pillar 101. Spring steel has a high elastic limit and fatigue resistance, ensuring that the buffer plate 202 can recover its original shape after multiple impacts, avoiding plastic deformation. When the front of the anti-collision plate 203 is impacted, the wave-shaped front buffer part 2022 can extend the time for absorbing impact energy through deformation, reducing the instantaneous impact force. The arc-shaped first connecting part 2023 avoids the front pillar 101, preventing interference between the anti-collision plate 203 and the pillar, ensuring smooth buffering action.

[0018] It is worth noting that the side buffer 2024 is located on the front buffer 2022. The side buffer 2024 has several V-shaped bends along its long axis. The second connecting part 2025 is located at the end of the side buffer 2024. The second connecting part 2025 is curved in an arc shape to avoid the front column 101. The anti-collision plate 203 is installed at the end of the first connecting part 2023 and the second connecting part 2025. The V-shaped bend of the side buffer 2024 can enhance the lateral impact resistance of the buffer plate 202. When the stacker crane collides obliquely with the anti-collision plate 203, the V-shaped structure can absorb lateral kinetic energy through compression deformation. The second connecting part 2025 and the first connecting part 2023 are symmetrically designed to provide stable support for the anti-collision plate 203. At the same time, the arc-shaped structure continuously avoids the front column 101, ensuring that the front column 101 will not affect the installation of the anti-collision plate 203.

[0019] It is worth mentioning that the buffer assembly includes a first mounting plate 204 disposed between the side buffer sections 2024 and a second mounting plate 205 disposed on the side buffer sections 2024. Both the first mounting plate 204 and the second mounting plate 205 are equipped with buffers 206. When the anti-collision plate 203 is subjected to a lateral impact, the side buffer sections 2024 will undergo compressive deformation. At this time, the positions of the two mounting plates will change, thereby guiding the impact force to the shelf plate 105 for further buffering through the buffers 206, forming a "two-way buffer" structure. The impact force is not only borne by the uprights but also by the shelf plate 105, dispersing the intensity of the impact force, improving the buffering capacity, and preventing the uprights of the anti-collision plate 203 from deforming due to excessive force.

[0020] It is worth noting that the buffer 206 includes a spring and a damping rod disposed inside the spring. The end of the buffer 206 is provided with a positioning plate 207, which is U-shaped. The inner wall of the U-shaped positioning plate 207 is provided with a ball bearing 2071. The positioning plate 207 wraps around the side of the shelf plate 105, and the ball bearing 2071 contacts the side of the shelf plate 105. The spring provides basic elastic buffering force, and the damping rod can suppress the rapid rebound of the spring to avoid secondary impact. The two work together to achieve integrated "buffering-energy dissipation". The U-shaped positioning plate 207 can position the buffer 206 and guide the force to the shelf plate 105 to disperse the magnitude of the impact force. When the front of the anti-collision plate 203 is impacted, due to the compression deformation of the front buffer 2022, the positioning plate 207 can limit the front buffer 2022 and move it backward along the side of the shelf plate 105 to prevent the deformation direction from deviating. The ball bearing 2071 can convert the sliding friction between the positioning plate 207 and the shelf plate 105 into rolling friction, reducing frictional resistance.

[0021] Working Principle: This embodiment provides a stacker crane automated storage and retrieval system (AS / RS) device with an anti-collision buffer structure. During use, the stacker crane performs goods storage and retrieval operations between AS / RS racks 100. When the stacker crane deviates from its predetermined trajectory due to high-load operation, control system errors, changes in track flatness, or sensor malfunction, and collides with the front upright 101 of the AS / RS rack 100, it first contacts the anti-collision buffer mechanism 200, which has an arc-shaped anti-collision plate 203 extending from the bottom to the middle of the front upright 101. The arc-shaped anti-collision plate 203 can initially disperse the collision force, preventing excessive local stress. After being impacted, the anti-collision plate 203 transmits the impact force to the first connecting part 2023 and the second connecting part 2025 connected to it. Both the first connecting part 2023 and the second connecting part 2025 are curved inward to avoid the front column 101, thus preventing interference with the front column 101. This allows for smooth transmission of impact force to the front buffer part 2022 and the side buffer part 2024 of the buffer plate 202. The buffer plate 202 is made of spring steel, possessing high elastic limit and fatigue resistance. Its front buffer part 2022 has a wave-shaped structure formed by several bends along its long axis. When subjected to impact force, it deforms, absorbing collision energy by extending the deformation path and reducing the instantaneous impact force. The side buffer part 2024 has a V-shaped bend structure along its long axis, which enhances the lateral impact resistance of the buffer plate 202. If the stacker crane causes an oblique collision, the V-shaped structure can absorb the impact force through compression. The side buffer 2024 absorbs lateral kinetic energy through deformation. Simultaneously, the first mounting plate 204 and the second mounting plate 205 connected to the side buffer 2024 change position with the deformation of the side buffer 2024, thereby actuating the buffer 206 mounted on the first mounting plate 204 and the second mounting plate 205. The spring inside the buffer 206 provides basic elastic buffering force, further buffering the impact force. The damping rod inside the spring suppresses rapid spring rebound, preventing secondary impacts and achieving integrated "buffering-energy dissipation." The U-shaped positioning plate 207 at the end of the buffer 206 wraps around the side of the shelf plate 105, guiding the force on the buffer 206 to the shelf plate 105, dispersing the impact intensity and preventing excessive force on the front upright 101. Simultaneously, when the front of the anti-collision plate 203 is impacted, causing the front buffer section 2022 to undergo compressive deformation, the positioning plate 207 can limit the front buffer section 2022, causing it to move backward along the side of the rack plate 105, preventing deviation in the deformation direction. Furthermore, the ball bearings 2071 on the U-shaped inner wall of the positioning plate 207 contact the side of the rack plate 105, converting the sliding friction between the positioning plate 207 and the rack plate 105 into rolling friction, reducing frictional resistance and ensuring smooth movement of the positioning plate 207. Ultimately, through the deformation buffering of the anti-collision plate 203 and the buffer plate 202, the elastic energy dissipation of the buffer 206, and the force transmission and dispersion of the positioning plate 207, a multi-stage, multi-directional anti-collision buffer system is formed, effectively absorbing the energy generated by the stacker crane collision.This reduces the risk of damage to critical components of the stacker crane (such as wheels, lifting devices, and forks) and the 100-ton automated storage and retrieval system (AS / RS), thereby reducing equipment maintenance costs and downtime, and preventing secondary safety accidents.

[0022] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A stacker crane vertical warehouse device with an anti-collision buffer structure, characterized in that, The system includes an automated storage and retrieval system (AS / RS) rack (100) and an anti-collision buffer mechanism (200) installed on the AS / RS rack (100). The AS / RS rack (100) includes symmetrically arranged front uprights (101) and rear uprights (102), and rack panels (105) bolted between the front uprights (101) and rear uprights (102). The rack panels (105) are symmetrically provided with pick-and-place slots (1051). The anti-collision buffer mechanism (200) includes a rack installed on the front uprights (101) and rear uprights (102). 1) A connecting frame (201) between the front upright (102) and the rear upright (102), wherein a buffer plate (202) is provided in the connecting frame (201), and a buffer component that contacts the side end of the shelf plate (105) is also provided on the buffer plate (202). A crash plate (203) is installed at the end of the buffer plate (202), and the crash plate (203) is arc-shaped and extends from the bottom of the front upright (101) to the middle of the front upright (101).

2. A stacker crane vertical warehouse device with an anti-collision buffer structure according to claim 1, characterized in that, A first connecting rod (103) is provided at the top of the front column (101) and the rear column (102), and second connecting rods (104) are provided at equal intervals between the first connecting rods (103).

3. A stacker crane vertical warehouse device with an anti-collision buffer structure according to claim 2, characterized in that, The buffer plate (202) is made of spring steel. The buffer plate (202) includes a mounting part (2021), a front buffer part (2022), a first connecting part (2023), a side buffer part (2024), and a second connecting part (2025) along the long axis. The mounting part (2021) is connected to the connecting frame (201). The front buffer part (2022) bends several times along the long axis to form a wave shape. The first connecting part (2023) bends inward to form an arc shape to avoid the front column (101).

4. A stacker crane vertical warehouse device with an anti-collision buffer structure according to claim 3, characterized in that, The side buffer (2024) is disposed on the front buffer (2022). The side buffer (2024) has several V-shaped bends along its long axis. The second connecting part (2025) is disposed at the end of the side buffer (2024). The second connecting part (2025) is bent in an arc shape to avoid the front pillar (101). The anti-collision plate (203) is installed at the end of the first connecting part (2023) and the second connecting part (2025).

5. A stacker crane vertical warehouse device with an anti-collision buffer structure according to claim 4, characterized in that, The buffer assembly includes a first mounting plate (204) disposed between the side buffer portions (2024) and a second mounting plate (205) disposed on the side buffer portions (2024), and a buffer (206) is disposed on both the first mounting plate (204) and the second mounting plate (205).

6. A stacker crane vertical warehouse device with an anti-collision buffer structure according to claim 5, characterized in that, The buffer (206) includes a spring and a damping rod disposed inside the spring. A positioning plate (207) is disposed at the end of the buffer (206). The positioning plate (207) is U-shaped. A ball bearing (2071) is disposed on the inner wall of the U-shape of the positioning plate (207). The positioning plate (207) wraps around the side of the shelf plate (105). The ball bearing (2071) contacts the side of the shelf plate (105).

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