Movable limiting mechanism for multilayer shuttle vehicle layer changing in multilayer stereoscopic warehouse

Abstract

The invention provides a movable limiting mechanism for multilayer shuttle vehicle layer changing in a multilayer stereoscopic warehouse, and relates to the technical field of logistics warehousing, the movable limiting mechanism comprises the multilayer stereoscopic warehouse, a layer changing cargo carrying table is arranged in the multilayer stereoscopic warehouse, layer changing inner guide rails are arranged on the inner walls of the two opposite sides of the layer changing cargo carrying table respectively, and shuttle vehicles are arranged on the two layer changing inner guide rails; butt joint guide rails are arranged at the ends of the layer changing inner guide rails correspondingly, and matched butt joint grooves are formed in the opposite ends of the layer changing inner guide rails and the butt joint guide rails correspondingly. According to the shuttle vehicle layer changing mechanism, through the arranged movable limiting mechanism, impact can be absorbed under the abnormal condition, the shuttle vehicle is prevented from being damaged, cargoes can be prevented from sliding along the butt joint guide rails, the cargoes are prevented from rigidly colliding with a goods shelf after colliding with the shuttle vehicle, and the safety and reliability of overall operation are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of logistics warehousing technology, specifically a movable limiting mechanism for changing layers of a multi-level shuttle car in a multi-level automated warehouse. Background Technology

[0002] In existing multi-level automated warehouse systems, shuttle cars rely on level-changing elevators to move between levels. However, the existing level-changing process often has the following problems: the limit devices rely on a single electronic control, which is prone to malfunction or failure to reach the correct position; the loading platform may settle during the level-changing process, affecting the safe entry and exit of the shuttle car; and the mechanical limit structure is complex and its actions are not synchronized, which can easily lead to jamming or damage to the shuttle car.

[0003] Therefore, there is an urgent need for a reasonable structure, reliable operation, and a dynamic limit device that can take into account both electrical control and mechanical safety in order to improve the stability and safety of the layer-changing process. Furthermore, if the existing layer-changing limit device is not opened in time, the shuttle car may directly collide with the limit component, which can easily cause damage to the vehicle body or structural deformation, posing a serious safety hazard. Summary of the Invention

[0004] The purpose of this application is to provide a movable limiting mechanism for changing floors of a multi-level shuttle car in a multi-level automated warehouse, so as to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a movable limiting mechanism for multi-level shuttle car layer changing in a multi-level vertical warehouse, comprising: a multi-level vertical warehouse, wherein a layer changing loading platform is provided inside the multi-level vertical warehouse, and layer changing inner guide rails are respectively provided on the inner walls of the opposite sides of the layer changing loading platform, a shuttle car is provided on the two layer changing inner guide rails, and a docking guide rail is respectively provided at the end of the layer changing inner guide rail, and a matching docking groove is respectively opened at the opposite end of the layer changing inner guide rail and the docking guide rail; The movable limiting mechanism is respectively installed on the docking guide rail of the shelf and is used to limit the shuttle. The movable limiting mechanism includes: a base, a vertical plate, a flip baffle, a buffer plate, a flip plate and a rolling bearing.

[0006] Furthermore, the base on the outer side of the connecting guide rail of the shelf has an upright plate on the front side of the base, the bottom of the upright plate is fixedly connected to the base, a flip baffle is rotatably connected between the inner wall of the base and the opposite side of the upright plate, a buffer plate is fixedly installed on the top of the flip baffle, a flip plate is rotatably connected to one side of the base, and a rolling bearing is fixedly installed at one end of the flip plate near the top.

[0007] Furthermore, torsion springs are fitted on the rotating shafts of both the flipping baffle and the flipping plate. One end of each torsion spring is connected to the base, and the other end is connected to the flipping baffle and the flipping plate, respectively.

[0008] Furthermore, an installation block is fixedly installed on the outer side of the inner guide rail of the layer changing section near the docking guide rail of the shelf, and a top plate is fixedly installed on one side.

[0009] Furthermore, a pushing block is fixedly installed at the top of the ejector plate relative to the rolling bearing, and the front side of the pushing block is provided with an inclined structure that is tangent to the rolling bearing. Limiting blocks are fixedly installed on the two inner guide rails of the layer changing near the end position.

[0010] Furthermore, a pin is fixedly connected to the front side of the mounting block, and a corresponding insertion hole is provided on the base.

[0011] Furthermore, two symmetrically arranged guide rails are fixedly installed on the top of the loading platform for changing layers. Two sliders are slidably connected to each guide rail, and a support plate is fixedly installed between the tops of the two sliders located on the same horizontal line.

[0012] Furthermore, a connecting beam is fixedly installed between the tops of the two support plates, and a servo electric cylinder is fixedly installed on the loading platform. The servo electric cylinder is located below the connecting beam, and the output end of the servo electric cylinder is connected to the bottom of the connecting beam through a connector.

[0013] Furthermore, the two inner guide rails for layer switching are respectively fixedly installed between the tops of the two support plates, the two inner guide rails for layer switching are symmetrically distributed, and the connecting beam is located between the two inner guide rails for layer switching.

[0014] The advantage of this invention is that, through the set movable limiting mechanism, it can absorb impact under abnormal conditions, prevent damage to the shuttle car, prevent goods from sliding along the docking guide rail, and prevent them from colliding with the rack after hitting the shuttle car, thus greatly improving the safety and reliability of the overall operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2This is a cross-sectional view of the overall structure of the present invention.

[0018] Figure 3 This is a cross-sectional view of the shuttle structure of the present invention.

[0019] Figure 4 This is a schematic diagram of the layer-changing loading platform structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the base structure of the present invention.

[0021] Figure 6 This is a schematic diagram of the docking guide rail and the inner guide rail of the layer changing according to the present invention.

[0022] Figure 7 For the present invention Figure 1 Enlarged view of point A in the middle.

[0023] Figure 8 For the present invention Figure 3 Enlarged view of section B in the middle.

[0024] The following are the labeling elements in the figure: 1. Multi-level automated storage and retrieval system (AS / RS); 11. Layer-changing loading platform; 12. Layer-changing inner guide rail; 13. Shuttle car; 14. Docking guide rail; 15. Docking groove; 2. Base; 21. Vertical plate; 22. Tilting baffle; 23. Buffer plate; 24. Tilting plate; 25. Rolling bearing; 26. Torsion spring; 27. Mounting block; 28. Top plate; 29. ​​Pushing block; 210. Limiting block; 211. Pin; 212. Insertion hole; 3. Guide rail; 31. Slider; 32. Support plate; 33. Connecting beam; 34. Servo electric cylinder. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] As attached Figures 1 to 8 The illustrated multi-level automated warehouse (AS / RS) includes: an AS / RS 1, an AS / RS 1 with an internal loading platform 11 for changing layers, inner guide rails 12 for changing layers on opposite sides of the loading platform 11, a shuttle 13 mounted on the inner guide rails 12, and docking guide rails 14 at the ends of the inner guide rails 12, with mating grooves 15 at opposite ends of the inner guide rails 12 and docking guide rails 14; and a movable limiting mechanism mounted on the docking guide rails 14 for limiting the shuttle 13.

[0028] The layer-changing loading platform 11 is slidably connected to the guide rails on both sides of the multi-level automated warehouse 1. The layer-changing loading platform 11 is connected to the lifting device. The docking guide rails 14 are installed on the shelves of each layer. When the layer-changing loading platform 11 is lifted to the corresponding shelf layer by the lifting device, the two inner guide rails 12 of the layer-changing platform are aligned with the two docking guide rails 14 on the corresponding shelf layer. Then, the docking grooves 15 at the ends of the two inner guide rails 12 and the two docking guide rails 14 are engaged, so that the inner guide rails 12 and the docking guide rails 14 are docked. After docking, The movable limit mechanism is activated, releasing the restriction on the shuttle 13. The shuttle 13 then moves onto the docking guide rail 14, where the goods on the shuttle 13 are placed onto the corresponding shelf layer. After the goods are placed, the shuttle 13 moves onto the inner shelf guide rail 12. Subsequently, the inner shelf guide rail 12 and the docking guide rail 14 separate, and the movable limit mechanism closes. This prevents the shuttle 13 from moving off the inner shelf guide rail 12 and also provides cushioning to avoid the shuttle 13 being impacted.

[0029] Two symmetrically arranged guide rails 3 are fixedly installed on the top of the layer-changing loading platform 11. Two sliders 31 are slidably connected to each guide rail 3. A support plate 32 is fixedly installed between the tops of the two sliders 31, which are located on the same horizontal line. A connecting beam 33 is fixedly installed between the tops of the two support plates 32. A servo cylinder 34 is fixedly installed on the layer-changing loading platform 11. The servo cylinder 34 is located below the connecting beam 33. The output end of the servo cylinder 34 is connected to the bottom of the connecting beam 33 through a connector. Two inner guide rails 12 are fixedly installed between the tops of the two support plates 32. The two inner guide rails 12 are symmetrically distributed. The connecting beam 33 is located between the two inner guide rails 12.

[0030] Specifically: When the two inner guide rails 12 of the layer-changing mechanism are connected to the two docking guide rails 14 on the shelf, the servo cylinder 34 starts to push out from the output end. The servo cylinder 34 can achieve extremely high precision control of the push-out distance. Through the connecting parts, it drives the connecting beam 33 to move to one side of the shelf. The connecting beam 33 drives the two support plates 32 to move together, so that the two inner guide rails 12 of the layer-changing mechanism are connected to the docking guide rails 14. After docking, the servo cylinder 34 stops working. When the two support plates 32 move, they will drive the slider 31 to move on the guide rail 3. The two symmetrically arranged guide rails 3 can guide the support plates 32, so that the support plates 32 can move smoothly. When the connection between the inner guide rails 12 of the layer-changing mechanism and the docking guide rail 14 is disconnected, the servo cylinder 34 starts to retract, driving the two support plates 32 and the inner guide rails 12 of the layer-changing mechanism back to their original positions.

[0031] The movable limiting mechanism includes: a base 2, an upright plate 21, a flip baffle 22, a buffer plate 23, a flip plate 24, and a rolling bearing 25. The base 2 is located outside the shelf connecting guide rail 14. An upright plate 21 is provided on the front side of the base 2. The bottom of the upright plate 21 is fixedly connected to the base 2. A flip baffle 22 is rotatably connected between the inner walls of the base 2 and the upright plate 21 on opposite sides. A buffer plate 23 is fixedly installed on the top of the flip baffle 22. A flip plate 24 is rotatably connected to one side of the base 2. A rolling bearing 25 is fixedly installed at one end of the flip plate 24 near the top. The key feature is that the flip baffle 22 and... A torsion spring 26 is fitted on the rotating shaft of the flip plate 24. One end of the two torsion springs 26 is connected to the base 2, and the other end is connected to the flip baffle 22 and the flip plate 24 respectively. An installation block 27 is fixedly installed on the outer side of the inner guide rail 12 near the shelf docking guide rail 14. An ejector plate 28 is fixedly installed on one side. A push block 29 is fixedly installed on the top of the ejector plate 28 at the position opposite to the rolling bearing 25. The front side of the push block 29 is provided with an inclined structure that is tangent to the rolling bearing 25. Limit blocks 210 are fixedly installed on the two inner guide rails 12 near the end.

[0032] Specifically: When the inner guide rail 12 of the changing layer is ejected, the ejector plate 28 is ejected along with the mounting block 27, causing the inclined surface on the front side of the pushing block 29 to push the rolling bearing 25, causing the rolling bearing 25 to roll along the inclined surface. This causes the flipping plate 24 to deflect counterclockwise. The flipping plate 24 is restricted by the limiting bolt of the base 2, so that the flipping plate 24 can only rotate counterclockwise. When the flipping plate 24 rotates, it will cause the torsion spring 26 on the rotating shaft to twist. When the flipping plate 24 rotates, its inclined side opposite to the flipping baffle 22 pushes the tail end of the flipping baffle 22, causing the flipping baffle 22 to rotate counterclockwise. At the same time, the torsion spring 26 on the rotating shaft of the flipping baffle 22 also rotates. The head of the flipping plate 24 moves away from the docking guide rail 14, thereby releasing the restriction and allowing the shuttle car 13 to pass. When the shuttle car 13 returns to the original position... After positioning, the inner guide rail 12 retracts and disconnects from the docking guide rail 14. The inner guide rail 12 moves the pushing block 29 together, and the torsion spring 26 on the rotating shaft of the flipping plate 24 releases its elasticity, causing the flipping plate 24 to rotate clockwise back to its original position. At the same time, the torsion spring 26 on the rotating shaft of the flipping baffle 22 also releases its elasticity, causing the flipping baffle 22 to rotate clockwise back to its original position, so that the flipping baffle 22 is placed on the docking guide rail 14. The flipping baffle 22 restricts the front of the shuttle car 13, preventing the goods from sliding along the docking guide rail 14 and hitting the shuttle car 13. The goods slide and hit the buffer plate 23, which can absorb the impact. The limit block 210 can restrict the shuttle car 13 when it returns to its original position, preventing the shuttle car 13 from moving excessively and hitting the multi-level warehouse 1.

[0033] In a preferred embodiment, a pin 211 is fixedly connected to the front side of the mounting block 27, and a socket 212 corresponding to the pin 210 is provided on the base 2.

[0034] Furthermore, the inner guide rail 12 of the layer-changing platform is pushed out, so that the pin 211 is inserted into the insertion hole 212, thereby strengthening the stability of the connection between the inner guide rail 12 of the layer-changing platform and the docking guide rail 14, and preventing the layer-changing loading platform 11 from settling and providing protection when in place.

[0035] In summary, this application provides a movable limiting mechanism for multi-level shuttle carriages changing layers in a multi-level automated storage and retrieval system (AS / RS), comprising: a multi-level AS / RS 1, wherein a layer-changing loading platform 11 is provided inside the AS / RS 1, and layer-changing inner guide rails 12 are respectively provided on the inner walls of the opposite sides of the layer-changing loading platform 11, with shuttle carriages 13 mounted on the two inner guide rails 12, and docking guide rails 14 are respectively provided at the ends of the inner guide rails 12 and the docking guide rails 14, and respectively having mating docking grooves 15 at opposite ends; and a movable limiting mechanism, which is respectively provided on the docking guide rails 14 of the rack and is used to limit the shuttle carriages 13. Through the provided movable limiting mechanism, impacts can be absorbed under abnormal conditions to prevent damage to the shuttle carriages, and goods can be prevented from sliding along the docking guide rails, preventing them from colliding hard with the racks after impacting the shuttle carriages, thus significantly improving the overall safety and reliability of operation.

[0036] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A movable limiting mechanism for changing floors of a multi-level shuttle car in a multi-level automated warehouse, characterized in that, include: A multi-level vertical warehouse (1) is provided inside the multi-level vertical warehouse (1). The multi-level vertical warehouse (1) is provided with a layer-changing loading platform (11). The inner walls of the layer-changing loading platform (11) on both sides are respectively provided with layer-changing inner guide rails (12). A shuttle car (13) is provided on the two layer-changing inner guide rails (12). The ends of the layer-changing inner guide rails (12) are respectively provided with docking guide rails (14), and the layers-changing inner guide rails (12) and the docking guide rails (14) are respectively provided with matching docking grooves (15) at opposite ends. The movable limiting mechanism is respectively set on the rack docking guide rail (14) and is used to limit the shuttle (13). The movable limiting mechanism includes: base (2), upright plate (21), flip baffle (22), buffer plate (23), flip plate (24) and rolling bearing (25).

2. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 1, characterized in that, The base (2) on the outside of the rack docking guide rail (14) has a standing plate (21) on the front side of the base (2). The bottom of the standing plate (21) is fixedly connected to the base (2). A flip baffle (22) is rotatably connected between the inner wall of the base (2) and the standing plate (21) on the opposite side. A buffer plate (23) is fixedly installed on the top of the flip baffle (22). A flip plate (24) is rotatably connected to one side of the base (2). A rolling bearing (25) is fixedly installed at one end of the flip plate (24) near the top.

3. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 2, characterized in that, Both the rotating shafts of the flipping baffle (22) and the flipping plate (24) are fitted with torsion springs (26). One end of each torsion spring (26) is connected to the base (2), and the other end is connected to the flipping baffle (22) and the flipping plate (24) respectively.

4. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 3, characterized in that, An installation block (27) is fixedly installed on the outer side of the inner guide rail (12) near the shelf docking guide rail (14), and a top plate (28) is fixedly installed on one side.

5. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 4, characterized in that, A push block (29) is fixedly installed at the top of the ejector plate (28) relative to the rolling bearing (25). The front side of the push block (29) is provided with an inclined structure that is cut into the rolling bearing (25). Limit blocks (210) are fixedly installed on the two inner guide rails (12) near the end position.

6. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 3, characterized in that, The mounting block (27) is fixedly connected to a pin (211) on the front side, and the base (2) is provided with a socket (212) corresponding to the pin (211).

7. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 1, characterized in that, The top of the loading platform (11) has two symmetrically arranged guide rails (3) fixedly installed. Each guide rail (3) has two sliders (31) slidably connected to it. A support plate (32) is fixedly installed between the tops of the two sliders (31) located on the same horizontal line.

8. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 1, characterized in that, A connecting beam (33) is fixedly installed between the tops of the two support plates (32). A servo electric cylinder (34) is fixedly installed on the loading platform (11). The servo electric cylinder (34) is located below the connecting beam (33). The output end of the servo electric cylinder (34) is connected to the bottom of the connecting beam (33) through a connector.

9. The movable limiting mechanism for multi-level shuttle car changing floors in a multi-level automated warehouse according to claim 7, characterized in that, The two inner guide rails (12) are fixedly installed between the tops of the two support plates (32), and the two inner guide rails (12) are symmetrically distributed. The connecting beam (33) is located between the two inner guide rails (12).

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