Carrying mechanism applied to lithium battery stacking machine

Abstract

The utility model discloses a carrying mechanism applied to a lithium battery stacking machine. The carrying mechanism comprises a lifting frame; the two rails are arranged on the surface of the lifting frame in parallel, and the extending direction of the rails is perpendicular to the advancing direction of the stacking machine; the retaining mechanisms are arranged at the two ends of the rail, each retaining mechanism comprises a rotating part capable of rotating around the axis, and the axis is perpendicular to the extending direction of the rail; the rotating part has two working states: in an inclined state, the rotating part forms a blocking surface higher than the track; and in the horizontal state, the rotating part serves as a transition section for connecting the rail and the rail in the external storage unit. According to the utility model, the rotating part forms a track transition surface in a horizontal state and generates a mechanical blocking surface in an inclined state, and the balance of safety protection and efficient transfer is realized through a double-state switching mechanism of the rotating part by combining the synchronous control of the driving component.

Description

Technical Field

[0001] This utility model relates to the field of stacker crane technology, and in particular to a transport mechanism applied to a lithium battery stacker crane. Background Technology

[0002] With the rapid development of intelligent warehousing technology, automated stacker cranes have become one of the core pieces of equipment in modern logistics systems. Through the efficient coordination of rail-mounted movement, lifting mechanisms, and forklifts, they achieve automated storage and retrieval of goods and three-dimensional warehouse management. Compared to traditional manual handling, stacker cranes have significant advantages such as high operating efficiency, superior space utilization, and stable operational accuracy, making them particularly suitable for high-density racking scenarios.

[0003] Existing stacker cranes still have significant limitations when handling heavy goods such as lithium batteries. As shown in patent CN113772591A, traditional fork mechanisms require complex multi-stage telescopic, rotating, and leveling structures to ensure smooth cargo transfer, leading to increased equipment weight, higher maintenance costs, and the rigid contact between the forks and battery pallets, which can easily cause vibration risks. More importantly, when stacker cranes work in conjunction with AGVs (Automated Guided Vehicles), existing solutions require the AGV to first transfer the goods to the stacker crane's transport platform, and then the stacker crane alone completes the warehousing operation. In this process, the goods need to undergo two transfers (AGV → stacker crane → rack), increasing operation time and reducing overall efficiency. In addition, lithium batteries are high-value, high-risk goods, and frequent transfers can easily cause surface damage or internal structural stress concentration, affecting battery safety performance. Therefore, to reduce the complexity of the transport mechanism, AGVs can be used to transport lithium batteries together to reduce the transfer environment, and AGVs can be used for warehousing. Therefore, the safety of the stacker crane's transport mechanism when simultaneously transporting AGVs and lithium batteries needs to be guaranteed. Utility Model Content

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a transport mechanism for lithium battery stackers that is safe to use and facilitates the entry and exit of lithium batteries by AGVs.

[0005] Technical solution: To achieve the above objectives, the present invention provides a transport mechanism for a lithium battery stacker crane, comprising:

[0006] Lifting frame;

[0007] Two parallel rails are set on the surface of the lifting frame, and the extension direction of the rails is perpendicular to the travel direction of the stacker crane;

[0008] The retaining mechanisms located at both ends of the track, each retaining mechanism comprising:

[0009] A rotating part capable of rotating about an axis, wherein the axis is perpendicular to the direction of track extension;

[0010] The rotating part has two working states:

[0011] When tilted, the rotating part forms a blocking surface that is higher than the track;

[0012] When placed horizontally, the rotating part serves as a transition section connecting the connecting track and the track in the external storage unit.

[0013] Furthermore, the retaining mechanism also includes:

[0014] A connecting rod hinged to the rotating part;

[0015] A slider that is slidably mounted on the lifting frame and rotatably connected to the connecting rod;

[0016] The driving component that drives the slider to slide.

[0017] Furthermore, the driving component includes:

[0018] Two bidirectional lead screws, each corresponding to one of the two tracks, with two opposing threaded sections at both ends of each bidirectional lead screw;

[0019] Two screw nuts that mate with the threaded sections at both ends of the bidirectional screw are respectively fixed to the sliders of two retaining mechanisms at both ends of the same track;

[0020] A drive motor is connected to the bidirectional lead screw drive.

[0021] Furthermore, the driving component also includes:

[0022] The drive shaft is arranged perpendicularly to the two-way lead screws and is positioned between the two two-way lead screws;

[0023] Two sets of first bevel gears establish transmission connections between the two ends of the bidirectional lead screw and the two ends of the transmission shaft, respectively.

[0024] Furthermore, the drive motor establishes a drive connection with one of the bidirectional lead screws through a second bevel gear set.

[0025] Furthermore, the rotation angle range of the rotating part is 0-30 degrees, and its surface is provided with a wear-resistant pad layer. When placed flat, the wear-resistant pad layer is flush with the top surface of the track.

[0026] Furthermore, the lifting frame has a support portion corresponding to each of the rotating parts, and when the rotating part is in a flat state, the support portion supports the lower side of the rotating part.

[0027] Furthermore, both the track and the rotating part have U-shaped cross-sections.

[0028] Beneficial effects: The transport mechanism of this utility model, applied to a lithium battery stacker, has the following advantages:

[0029] Beneficial effects:

[0030] (1) When the rotating part is in a flat state, it forms a track transition surface. When it is tilted, it generates a mechanical blocking surface. Combined with the synchronous control of the drive component, the dual-state switching mechanism of the rotating part achieves a balance between safety protection and efficient transportation.

[0031] (2) The drive system adopts a composite transmission design of two-way screw and bevel gear set. By linking four sets of rotating parts on both sides through a single transmission shaft, the number of drive motors can be reduced, costs can be reduced, and the synchronicity of the operation of all rotating parts can be improved. Attached Figure Description

[0032] Figure 1 This is a first-state diagram of the transport mechanism applied to a lithium battery stacker.

[0033] Figure 2 This is a second state diagram of the transport mechanism applied to a lithium battery stacker.

[0034] Figure 3 This is a three-dimensional structural diagram of the transport mechanism;

[0035] Figure 4 for Figure 3 Enlarged structural diagram of part A

[0036] In the diagram: 1-Lifting frame; 2-Railway; 3-Rotating part; 4-Connecting rod; 5-Slider; 6-Drive assembly; 11-Support part; 6-Drive assembly; 61-Double lead screw; 62-Lead screw nut; 63-Drive motor; 64-Transmission shaft; 65-First bevel gear set; 66-Second bevel gear set. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings.

[0038] like Figure 1 As shown, this embodiment provides a transport mechanism for a lithium battery stacker. It includes a lifting frame 1, with two parallel tracks 2 arranged on the surface of the lifting frame 1, the tracks extending perpendicularly to the stacker's travel direction. The track 2 has a U-shaped groove structure in its cross-section, with nylon guide strips embedded within the grooves to increase friction with the guide wheels of the transport robot. Each track 2 has a holding mechanism at both ends, comprising a rotating part 3, a connecting rod 4, a slider 5, and a drive assembly 6. The rotating part 3 is mounted to the end of the track via a rotating shaft, the axis of which is perpendicular to the track's extension direction. The rotating part 3 has two working states: as shown... Figure 2As shown, in the tilted state, the rotating part 3 forms a blocking surface higher than the track 2; in the flat state, as... Figure 1 As shown, the rotating part 3 serves as a transition section between the connecting track and the track in the external storage unit. At this time, the AGV on the lifting frame 1 can enter the external storage unit through the connecting track to release the lithium battery into the storage unit, and then return to the lifting frame 1.

[0039] The switching between the two working states of the rotating part 3 is achieved through the drive component 6, such as... Figure 3 As shown, the drive assembly 6 includes a bidirectional lead screw 61, a lead screw nut 62, and a drive motor 63. The bidirectional lead screw 61 has reverse threaded sections at both ends. The lead screw nut 62 is fixed to sliders 5 at both ends of the same track 2. The drive motor 63 drives the lead screw to rotate via a second bevel gear set 66. The transmission shaft 64 and the first bevel gear set 65 achieve synchronous linkage between the two lead screws. Specifically, the transmission shaft 64 is arranged perpendicularly to the bidirectional lead screw 61 and positioned between the two bidirectional lead screws 61. The two sets of first bevel gear sets 65 respectively establish transmission connections between the two ends of the bidirectional lead screw 61 and the two ends of the transmission shaft 64.

[0040] When drive assembly 6 is working, drive motor 63 drives bidirectional lead screw 61 to rotate, such as Figure 4 As shown, the lead screw nut 62 pushes the slider 5 to move translationally, which in turn drives the rotating part 3 to rotate around the axis via the connecting rod 4. The rotation angle of the rotating part 3 is controlled within the range of 0-30 degrees. Its surface is covered with a polyurethane wear-resistant pad. In the flat state, the pad is completely flush with the top surface of the track 2, forming a transition surface to ensure that the wheel assembly of the handling robot passes smoothly. In the tilted state, the rotating part 3 flips upward to form a blocking surface, and the position is restricted by the mechanical limiting structure, effectively preventing the robot from slipping off the track due to inertia or vibration. This drive system can realize the synchronous movement of four sets of rotating parts 3.

[0041] The lifting frame 1 has a support part 11 below the rotating part 3. When the rotating part 3 is in a flat position, the support part 11 bears the load when the robot is transferred through surface contact.

[0042] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A transport mechanism for use in a lithium battery stacker, characterized in that, The utility model relates to a kind of storage and retrieval device for stacker, including: Lifting frame (1); Two tracks (2) are arranged on the surface of the lifting frame (1) in parallel, the extension direction of the track (2) is perpendicular to the direction of travel of stacker; Retaining mechanism is provided at both ends of the track (2), each retaining mechanism includes: Rotary part (3) capable of rotating around axis, the axis is perpendicular to the extension direction of track (2); The rotary part (3) has two working states: When in inclined state, rotary part (3) forms barrier surface higher than track (2); When in flat state, rotary part (3) is used as transition section of track (2) and track in external storage unit.

2. The carrier mechanism for use in a lithium battery stacker according to claim 1, characterized in that, The retaining mechanism further includes: Connecting rod (4) hinged with rotary part (3); Sliding block (5) slidingly mounted on lifting frame (1) and rotationally connected with the connecting rod (4); Driving assembly (6) for driving sliding block (5) to slide.

3. The carrier mechanism for use in a lithium battery stacker according to claim 2, characterized in that, The driving assembly (6) includes: Two bidirectional lead screws (61) corresponding to two tracks (2) respectively, each bidirectional lead screw (61) is provided with two reverse threaded segments at both ends thereof; Two lead screw nuts (62) matched with the threaded segments at both ends of bidirectional lead screw (61) are fixed on sliding blocks (5) of two retaining mechanisms at both ends of the same track (2) respectively; Driving motor (63) is in driving connection with the bidirectional lead screw (61).

4. The carrier mechanism for use in a lithium battery stacker according to claim 3, characterized in that, The driving assembly (6) further includes: Transmission shaft (64) is arranged perpendicularly to the bidirectional lead screw (61) and placed between two bidirectional lead screws (61); Two groups of first bevel gear sets (65) are used to establish driving connection between both ends of the bidirectional lead screw (61) and both ends of the transmission shaft (64).

5. The carrier mechanism for use in a lithium battery stacker according to claim 4, characterized in that, The driving motor (63) is in driving connection with one of the bidirectional lead screws (61) through second bevel gear set (66).

6. The carrier mechanism for use in a lithium battery stacker of claim 1, wherein, The rotary angle of the rotary part (3) ranges from 0 to 30 degrees, and the surface of the rotary part (3) is provided with wear-resistant pad layer, which is flush with the top surface of the track (2) in flat state.

7. The carrier mechanism for use in a lithium battery stacker according to claim 1, characterized in that, The lifting frame (1) has support part (11) corresponding to each rotary part (3), which supports the lower side of the rotary part (3) when the rotary part (3) is in flat state.

8. The carrier mechanism for use in a lithium battery stacker according to claim 1, characterized in that, The cross section of the track (2) and the rotary part (3) is U-shaped.

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