Storage system goods shelf
By setting up a second main rail in the automated warehouse racking and optimizing its position and quantity, the problems of uneven distribution of goods and uneven load on the columns were solved, thereby improving the operating efficiency of the automated warehouse robot and the stability of the racking.
Patent Information
- Application Number
- CN202511481339.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-16
- Publication Date
- 2026-01-16
AI Technical Summary
Existing automated warehouse racking structures have shortcomings in terms of stability and operational efficiency, especially in multi-level automated warehouses where uneven distribution of goods leads to uneven pressure on the uprights, and the operating efficiency of automated warehouse robots is low.
A second main rail is set in the shelf layer, and different numbers and positions of the second main rails are set on different layers to form an asymmetrical layout, optimize the distribution of goods, and the second main rails are set in a concentrated manner on the inbound and outbound layers to improve operational efficiency.
The asymmetrical layout of the second mother rail design improves the operating efficiency of the automated storage and retrieval system robot, evens out the distribution of goods, reduces the pressure on the columns, and improves space utilization and overall rack stability.
Smart Images

Figure CN121341591A_ABST
Abstract
Description
Technical Field
[0001] This technical solution belongs to the field of warehousing and logistics, and specifically involves a warehouse system rack. Background Technology
[0002] Automated storage and retrieval systems (AS / RS) utilize automated storage and retrieval equipment to achieve high-level warehouse optimization, automated storage and retrieval, and simplified operation. Currently, AS / RS typically employs vertical racks to store goods, with cross-shaped tracks on these racks for automated storage robots to move along, thereby handling and retrieving pallets of goods stored on the racks.
[0003] Existing cross-type tracks generally consist of sub-tracks, reversing tracks, and main tracks. The sub-tracks and reversing tracks are connected linearly end-to-end, and mounting slots are provided on the reversing tracks for perpendicular connection to the main tracks. This cross-type track configuration allows automated storage and retrieval systems (AS / RS) robots to move planar within a single layer of the racking system.
[0004] In the shelving, goods are laid on the sub-rails, and the protrusions on both sides of the sub-rails support the goods. After the horizontal automated storage and retrieval system (AS / RS) robot has placed the goods, it can drive away from under the protrusions. A reversing rail is installed under the main rail, and the horizontal AS / RS robot can change direction on the main rail.
[0005] The shelving is installed in the warehouse in a multi-level, three-dimensional manner. Currently, for ease of installation, each layer of the shelving has the same structure, but the stability and operating efficiency of this type of shelving need to be improved. Summary of the Invention
[0006] This invention provides a warehouse system rack, which includes multiple rack layers stacked in a three-dimensional direction. Each rack layer includes a sub-rail, a main rail, and a reversing rail. The sub-rail and the reversing rail are connected and arranged perpendicularly to the main rail. Each rack layer is supported and connected by uprights. The main rail includes a first main rail and a second main rail. At least some rack layers are provided with a second main rail.
[0007] Preferably, the number of mother rails is different for at least two shelf layers.
[0008] Preferably, at least two shelf layers are provided with a second mother rail, and the second mother rails on at least two shelf layers are located at different positions in the vertical direction.
[0009] Preferably, the shelf layer includes an inbound layer or an outbound layer; a second mother rail is provided on the shelf layer where the inbound layer or the outbound layer is located;
[0010] The receiving layer is the area where goods awaiting warehousing are centrally stored. The goods awaiting warehousing are moved from the receiving layer to different shelf layers for storage.
[0011] The outbound layer is the area where goods awaiting shipment are stored. Goods are gathered from different shelf levels to the outbound layer, waiting to be handled and shipped out.
[0012] Preferably, the inbound layer and the outbound layer are located on different shelf layers, and the second guide rail on the shelf layer where the inbound layer is located and the second guide rail on the shelf layer where the outbound layer is located are located at different positions in the vertical direction.
[0013] Preferably, the first mother rail is located on the side of the storage system rack, and the second mother rail is located in the middle of the storage system rack.
[0014] The present invention also provides a warehouse system rack, including a first rack layer and a second rack layer, the first rack layer and the second rack layer are located on different layers, the first rack layer and the second rack layer are stacked in a three-dimensional direction, and the first rack layer and the second rack layer are connected by uprights for support; the first rack layer and the second rack layer are respectively provided with sub-rails, main rails and reversing rails; the sub-rails and reversing rails are arranged perpendicular to the main rails.
[0015] The main rail includes a first main rail and a second main rail; the first main rail is located on the side of the storage system rack, and the second main rail is located in the middle of the storage system rack.
[0016] The first and second shelf layers are equipped with a first mother rail;
[0017] The first shelf layer is equipped with a second mother rail.
[0018] Preferably, the first shelf layer serves as both an inbound and outbound layer; a second feed rail is provided on the first shelf layer.
[0019] The receiving layer is the area where goods awaiting warehousing are centrally stored. The goods awaiting warehousing are moved from the receiving layer to different shelf layers for storage.
[0020] The outbound layer is the area where goods awaiting shipment are stored. Goods are gathered from different shelf levels to the outbound layer, waiting to be handled and shipped out.
[0021] Preferably, the first shelf layer is the inbound layer and the second shelf layer is the outbound layer; a second mother rail is provided on both the first shelf layer and the second shelf layer, and the second mother rail on the first shelf layer and the second shelf layer are located at different positions in the vertical direction;
[0022] The receiving layer is the area where goods awaiting warehousing are centrally stored. The goods awaiting warehousing are moved from the receiving layer to different shelf layers for storage.
[0023] The outbound layer is the area where goods awaiting shipment are stored. Goods are gathered from different shelf levels to the outbound layer, waiting to be handled and shipped out.
[0024] Preferably, the warehouse system rack also includes a third rack layer, which is a regular rack layer, and the number of second rails on the third rack layer is less than the number of second rails on the first rack layer.
[0025] The beneficial effects of this invention are as follows: By setting a second mother rail, the layout of the warehouse system shelves can be made more convenient and rational, improving the operating efficiency of the automated storage and retrieval system (AS / RS) robot. Simultaneously, the different positions of the second mother rails ensure that they do not overlap vertically within the shelf, but are staggered; the mother rails are not kept on the same vertical plane, resulting in a more uniform distribution of goods on the entire shelf, balanced stress on the overall shelf, and reduced pressure on the uprights; furthermore, setting different numbers of second mother rails on different layers can improve the utilization efficiency of the warehouse system. Attached Figure Description
[0026] Figure 1 The diagram shown is a three-dimensional structural diagram of a warehouse system rack.
[0027] Figure 2 The image shows a schematic diagram of the warehouse system's shelving.
[0028] Figure 3 The diagram shows a small tray placed on a subrail.
[0029] Figure 4 The diagram shows a large pallet placed on a subrail. Detailed Implementation Plan
[0030] like Figure 1 , 2 The diagram shows a schematic of the warehouse system rack structure of the present invention. As shown, the present invention provides a warehouse system rack that includes multiple rack layers stacked in a three-dimensional direction. Each rack layer includes a sub-rail 12, a main rail, and a reversing rail 13. The sub-rail 12 and the reversing rail 13 are connected, and the sub-rail 12 and the reversing rail 13 are arranged perpendicularly to the main rail. Each rack layer is supported and connected by uprights 11.
[0031] The main rail includes a first main rail 14 located on the side of the storage system rack and a second main rail 15 located in the middle of the storage system rack. Each rack level is equipped with a first main rail, and at least some rack levels are equipped with a second main rail.
[0032] A first main rail 14 is uniformly set on the side of the storage system rack. This area is not used for storing goods, but only for the storage robot to change rails. When the storage robot switches between different sub-rails (on the same level), it needs to first drive into the reversing rail, and then move horizontally through the main rails that intersect with the reversing rail, and then drive into the different sub-rails. The exchange of the automated storage and retrieval system (AS / RS) robots between different levels requires the use of a lifting system. Generally, the lifting system is set on the side. The AS / RS robot uses the lifting system to reach the first main rail of the designated level, and then moves horizontally on that level.
[0033] The shelving layer includes an inbound layer or an outbound layer; a second master rail is provided on the shelving layer where the inbound layer or the outbound layer is located; the inbound layer is the area where goods to be received are stored together, and the goods to be received are moved from the inbound layer to different shelving layers for storage; the outbound layer is the area where goods to be shipped are stored together, and the goods to be shipped are gathered from different shelving layers to the outbound layer, waiting to be moved out of the warehouse.
[0034] Goods are placed on shelves, and their movement within the shelves can be categorized into two types: "inbound" and "outbound." Inbound refers to goods being retrieved from a designated area on one shelf and moved to different shelves. Outbound refers to goods leaving the shelves. Inbound refers to goods being retrieved from different shelves and moved to a designated area on the same shelf. Therefore, for shelves, the inbound and outbound processes involve the greatest movement. "Inbound" and "outbound" are the primary tasks performed on the shelves, and the second main track serves as the main channel for these processes.
[0035] The receiving and shipping layers can be located on the same shelf or on different shelf layers.
[0036] When the inbound and outbound layers are located on the same floor, this shelf layer is the busiest in the entire warehousing system. One or more second main rails can be installed to prevent congestion of the horizontal automated storage and retrieval system (AS / RS) robots.
[0037] When the inbound and outbound layers can be set on different shelf levels (i.e., one shelf level is selected as the inbound layer and the other as the outbound layer), both shelf levels are relatively busy. Second master rails can be set on the shelf levels where the inbound and outbound layers are located to prevent congestion of the horizontal automated warehouse robots.
[0038] On ordinary shelving without inbound and outbound layers, there will be far fewer horizontal automated storage and retrieval systems (AS / RS), and generally no second master rail is needed or only a small number of second master rails are required.
[0039] The locations of "inbound" and "outbound" are not limited and can be determined according to actual needs. The inbound layer can be set at the bottom layer or in the middle layer, such as the fourth layer; similarly, the location of the outbound layer is also determined according to actual needs.
[0040] Based on understanding, in this invention, the number of second master rails differs for at least two shelf levels. As mentioned above, the number of second master rails on the outbound or inbound shelf level is greater than the number of master rails on a regular shelf level.
[0041] When multiple shelving layers are equipped with a second main rail, the second main rail is staggered in position on each layer, not in the same vertical plane. This results in a more even distribution of goods, balanced stress on the overall shelving, and reduced pressure on the uprights. Furthermore, when the position of the second main rail changes, the lengths of the sub-rails on either side of it will differ, no longer a constant value, and can be adjusted according to the actual needs of the goods. For example, some customers may have different product lines, with higher production volumes for best-selling items and lower volumes for general-selling items. Best-selling items can be placed on longer sub-rails, while general-selling items can be placed on shorter ones. This effectively prevents general-selling items from being underutilized, wasting storage space, and avoids the need to reposition best-selling items to another sub-rail if they don't fit. The placement of the second main rail depends on the required length of the sub-rails.
[0042] like Figure 3 , 4 As shown, since the area where the second master rail is located cannot store material pallets, its position is adjusted according to the size of the material pallets. On the same sub-rail, some small material pallets can be placed up to six times; however, for larger material pallets, even placing three pallets is insufficient space on the sub-rail. Furthermore, the placement of the second master rail would interrupt the sub-rail, affecting the layout of the material pallets on it. Therefore, by setting different numbers and positions of second master rails on different layers, the layout can be optimized.
[0043] In a preferred embodiment of the invention, portions of the second mother rails on at least two shelf layers are located at different positions in the vertical direction; more preferably, the second mother rails on each shelf layer are located at different positions in the vertical direction.
[0044] The second master rail is positioned differently on each layer, so that the second master rails do not overlap vertically inside the rack and are staggered. This allows for better planning of pallets of different sizes, as the position of the second master rail is adjusted according to the pallet size, giving pallets more placement options. On higher floors, the original locations where the second master rail was laid are used as storage locations, increasing the number of storage locations, allowing for more goods to be placed, and improving space utilization.
[0045] In another embodiment of the present invention, during warehouse design and operation, due to the three-dimensional layout of the warehouse system shelves and the limitations of column load-bearing capacity, for safety and stability, homogeneous goods are generally preferentially stored on lower shelf levels, while higher shelf levels require lower load storage. Therefore, lower shelf levels tend to have larger storage capacities, even being fully loaded. Consequently, the operation of automated warehouse robots becomes very frequent, sometimes with multiple robots operating simultaneously. In such cases, the first main rail 14 may not meet the requirements, so a second main rail 15 is installed in the middle of the warehouse system shelves. Therefore, depending on actual needs, lower shelf levels may have one or more second main rails, while upper shelf levels may have fewer or no second main rails. The arrangement of the second main rails on each shelf level depends on actual needs, such as the area of the warehouse system shelves, the weight of the goods, and the frequency of goods storage and handling. Alternatively, the number of second main rails on the bottom shelf level may be less than the number on the top shelf level. For example, if the same warehouse system needs to accommodate the stacking of different goods, heavier materials or large pallets are placed on the lower shelf level, and lighter materials or small pallets are placed on the upper shelf level. The materials on the upper shelf level may require frequent storage and handling. In this case, the number of second rails on the upper shelf level will be greater than that on the lower shelf level.
[0046] As shown in the figure, in this invention, the lower 1st, 2nd, and 3rd shelf layers are equipped with second mother rails (corresponding to reversing rails 13), while the 4th and 5th shelf layers do not have second mother rails (corresponding to the absence of reversing rails 13). Those skilled in the art should understand that this embodiment is merely illustrative; in actual needs, the 1st, 2nd, and 3rd layers can also be equipped with two, three, or more second mother rails, and the 4th, 5th, or higher layers can be equipped with one or more second mother rails. Alternatively, one second mother rail can be provided on each shelf layer; or multiple second mother rails can be provided on the 4th and 5th layers, while the 1st, 2nd, and 3rd layers have a small number or no second mother rails (i.e., the number of second mother rails is 0).
[0047] The present invention also provides an embodiment in which the warehouse system rack includes a first rack layer and a second rack layer, the first rack layer and the second rack layer are located on different layers, the first rack layer and the second rack layer are stacked in a three-dimensional vertical direction, and the first rack layer and the second rack layer are connected by a column 11 for support.
[0048] Sub-rails 12, main rails, and reversing rails 13 are respectively provided on the first and second shelf layers; the sub-rails 12 and reversing rails 13 are arranged perpendicularly to the main rails.
[0049] The main rail includes a first main rail 14 located on the side of the storage system rack and a second main rail 15 located in the middle of the storage system rack. The first rack level and the second shelf level are both equipped with the first main rail, and the first rack level is also equipped with the second main rail.
[0050] In this embodiment, the first shelf layer is the inbound layer and the outbound layer; a second master rail is provided on the first shelf layer; the inbound layer is the area where goods to be inbound are centrally stored, and the goods to be inbound are moved from the inbound layer to different shelf layers for storage; the outbound layer is the area where goods to be outbound are centrally stored, and the goods to be outbound are centrally collected from different shelf layers to the outbound layer, waiting to be moved out of the warehouse.
[0051] In another embodiment of the present invention, the first shelf layer is the inbound layer, and the second shelf layer is the outbound layer; a second master rail is provided on both the first and second shelf layers, and the second master rails on the first and second shelf layers are located at different positions in the vertical direction; the inbound layer is the area where goods to be inbound are centrally stored, and the goods to be inbound are moved from the inbound layer to different shelf layers for storage; the outbound layer is the area where goods to be outbound are centrally stored, and the goods to be outbound are gathered from different shelf layers to the outbound layer, waiting to be moved out of the warehouse.
[0052] In this invention, the second mother rail located on the first shelf layer and the second mother rail located on the second shelf layer are located at different positions in the vertical direction, that is, the second mother rails of the first shelf layer and the second shelf layer are staggered, which makes the goods on the entire shelf more evenly distributed, the overall shelf is subjected to balanced force, reduces the pressure on the uprights, and optimizes the storage of material pallets, thereby improving space utilization.
[0053] Those skilled in the art should understand that the definitions of the first and second shelf layers here should be interpreted broadly. They can be two directly adjacent shelf layers or two non-directly adjacent shelf layers. This definition is for ease of understanding and to better explain the determination of the scope of protection of this invention, and does not mean that the warehouse system has only two shelf layers. For example, in a warehouse system with five shelf layers, any two shelf layers can be arbitrarily defined as the first and second shelf layers.
[0054] The warehouse system racking also includes a third rack level, which is a standard rack level. This third rack level only has a first main rail, sub-rails 12, and reversing rails 13; it does not have second main rails or only a small number of second main rails are provided according to actual needs. The number of second main rails in the third rack level is less than the number of second main rails in the first rack level.
Claims
1. A warehouse system shelf, comprising a plurality of shelf layers stacked in a three-dimensional direction, each shelf layer comprising a male track, a female track and a reversing track, the male track and the reversing track being connected, and the male track and the reversing track being arranged perpendicularly to the female track; each shelf layer being connected by a column support; characterized in that: the female track comprises a first female track and a second female track; at least part of the shelf layers are provided with the second female track. The number of female tracks of at least two shelf layers is different.
2. The warehouse system rack of claim 1, wherein, At least two shelf layers are provided with the second female track, and the second female tracks of the at least two shelf layers are located at different positions in the vertical direction.
3. The warehouse system rack of claim 1, wherein, The shelf layer comprises an entry layer or an exit layer; the second female track is provided on the shelf layer where the entry layer or the exit layer is located; 4. The warehouse system rack of claim 1, wherein, The entry layer is a concentrated storage area for goods to be entered, and the goods to be entered are distributed from the entry layer to different shelf layers for storage; The exit layer is a concentrated storage area for goods to be exited, and the goods to be exited are concentrated from different shelf layers to the exit layer, waiting to be transported out. The entry layer and the exit layer are located on different shelf layers, and the second female track on the shelf layer where the entry layer is located and the second female track on the shelf layer where the exit layer is located are located at different positions in the vertical direction.
5. The warehouse system rack of claim 4, wherein, The first female track is located at the side of the warehouse system shelf, and the second female track is located at the middle position of the warehouse system shelf.
6. The warehouse system rack of claim 1, wherein, 7. A warehouse system shelf, comprising a first shelf layer and a second shelf layer, the first shelf layer and the second shelf layer being located at different layers, the first shelf layer and the second shelf layer being stacked in a three-dimensional direction, and the first shelf layer and the second shelf layer being connected by a column support; The first shelf layer and the second shelf layer are respectively provided with a male track, a female track and a reversing track; the male track and the reversing track are arranged perpendicularly to the female track; The female track comprises a first female track and a second female track; the first female track is located at the side of the warehouse system shelf, and the second female track is located at the middle position of the warehouse system shelf; The first shelf layer and the second shelf layer are provided with the first female track; The first shelf layer is provided with the second female track. The first shelf layer is an entry layer and an exit layer; the second female track is provided on the first shelf layer; 8. The warehouse system rack of claim 7, wherein, The entry layer is a concentrated storage area for goods to be entered, and the goods to be entered are distributed from the entry layer to different shelf layers for storage; The exit layer is a concentrated storage area for goods to be exited, and the goods to be exited are concentrated from different shelf layers to the exit layer, waiting to be transported out. The first shelf layer is an entry layer, and the second shelf layer is an exit layer; the second female track is provided on the first shelf layer and the second shelf layer, and the second female track on the first shelf layer and the second female track on the second shelf layer are located at different positions in the vertical direction; 9. The warehouse system rack of claim 7, wherein, The entry layer is a concentrated storage area for goods to be entered, and the goods to be entered are distributed from the entry layer to different shelf layers for storage; The exit layer is a concentrated storage area for goods to be exited, and the goods to be exited are concentrated from different shelf layers to the exit layer, waiting to be transported out. The warehouse system shelf further comprises a third shelf layer, the third shelf layer being a general shelf layer, and the number of second female tracks of the third shelf layer is less than the number of second female tracks of the first shelf layer.
10. The warehouse system rack of claim 7, wherein,