Pallet fork structure for multi-size trays

Abstract

The utility model discloses a pallet fork structure for multi-size pallets, which belongs to the field of production stacking and comprises a first pallet fork and a second pallet fork, the first pallet fork and the second pallet fork are mounted on a stacking machine, the first pallet fork comprises two first fork arms, the second pallet fork comprises two second fork arms, and the two second fork arms are arranged between the two first fork arms. According to the stacking machine, the first pallet fork and the second pallet fork are arranged, the two second fork arms are arranged between the two first fork arms, so that the structure can adapt to pallets of different sizes, the flexibility and universality of the stacking machine are improved, and the stability of cargoes in the carrying process can be guaranteed by arranging the two second fork arms between the two first fork arms.

Description

Technical Field

[0001] The utility model belongs to the field of production stacking, and in particular relates to a fork structure used for pallets of multiple sizes. Background Art

[0002] Automated warehouses (AWs) are increasingly being used in the logistics and warehousing industry. These systems utilize equipment such as stacker cranes to efficiently store and retrieve goods. Stacker cranes are a key piece of automated equipment, capable of moving along tracks and automatically storing and retrieving goods. One of the core components of a stacker crane is its fork mechanism, the design of which directly impacts its efficiency and applicability.

[0003] Traditional forklifts are typically only suitable for pallets of a single size, limiting their ability to handle cargo of varying sizes. With the development of the logistics industry, customer demands for cargo storage and retrieval have become increasingly diverse, and the limitations of single-size forklifts have gradually become apparent. For example, patent application number CN115520811A discloses a dual-forklift truck, which includes a vehicle body, an upper mast mechanism, a lower mast mechanism, an upper fork, and a lower fork. The upper mast mechanism is located on one side of the vehicle body; the lower mast mechanism is located on one side of the vehicle body and below the upper mast mechanism; the upper fork is liftably mounted on the upper mast mechanism; and the lower fork is liftably mounted on the lower mast mechanism and below the upper fork. By arranging two masts and two forks on one side of the forklift, the efficiency of forklift cargo transportation is improved. However, the technology disclosed in this patent employs a staggered arrangement of the two forks, which is less adaptable to multiple-size requirements. Furthermore, the staggered arrangement provides insufficient support for lifting objects and is unstable.

[0004] In view of this, this application is hereby filed. Utility Model Content

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a fork structure for pallets of various sizes. The present invention is achieved through the following technical solutions:

[0006] A fork structure for multi-size pallets includes a first fork and a second fork mounted on a stacker. The first fork includes two first fork arms, and the second fork includes two second fork arms. The two second fork arms are arranged between the two first fork arms.

[0007] Preferably, the first fork and the second fork are connected to the stacker via a first slide rail group and a second slide rail group respectively.

[0008] Preferably, the first slide rail group and the second slide rail group are both fixed to the stacker via pads.

[0009] Preferably, a first motor for driving the first fork is fixedly mounted on the first slide rail assembly, and a second motor for driving the second fork is fixedly mounted on the second slide rail assembly.

[0010] Preferably, the first motor is connected to the first fork via a first driving wheel box, and the second motor is connected to the second fork via a second driving wheel box.

[0011] Preferably, the first fork arm and the second fork arm are of the same length, and the first fork arm and the second fork arm are aligned at their most extended positions.

[0012] Preferably, the first motor and the first driving wheel box are arranged at an end of the first slide rail group away from the stacker, and the second motor and the second driving wheel box are arranged at an end of the second slide rail group close to the stacker.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. By setting the first fork and the second fork, and the two second forks are arranged between the two first forks, the structure can adapt to pallets of different sizes, thereby improving the flexibility and versatility of the stacker. The two second forks arranged between the two first forks can also ensure the stability of the goods during the handling process.

[0015] 2. Connect the first fork and the second fork to the stacker through the first slide rail group and the second slide rail group, so that the first fork and the second fork have a telescopic function and can adapt to pallets of more sizes.

[0016] 3. By equipping the first fork and the second fork with the first motor and the second motor respectively, the movements of the two forks can be independently controlled as needed, thereby increasing the flexibility of system operation.

[0017] 4. By arranging the first motor and the first drive wheel box at the end of the first slide rail group away from the stacker, and the second motor and the second drive wheel box at the end of the second slide rail group close to the stacker, such a distributed placement method can effectively place the center of gravity of the load in the appropriate position, thereby improving the stability of the overall operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the top view of the structure of the utility model;

[0019] Figure 2 It is a side structural schematic diagram of the utility model;

[0020] Figure 3 It is an installation diagram of the utility model.

[0021] In the figure: 1. First fork; 11. First fork arm; 2. Second fork; 21. Second fork arm; 3. First slide rail assembly; 4. Second slide rail assembly; 5. Pad; 6. First motor; 61. First drive wheel box; 7. Second motor; 71. Second drive wheel box; 8. Stacker. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] like Figure 1 – Figure 3 As shown, this embodiment provides a fork structure for multi-sized pallets, including a first fork 1 and a second fork 2 installed on a stacker 8, wherein the first fork 1 includes two first fork arms 11, and the second fork 2 includes two second fork arms 21, and the two second fork arms 21 are arranged between the two first fork arms 11.

[0024] By setting the first fork 1 and the second fork 2, and the two second fork arms 21 being set between the two first fork arms 11, the structure can adapt to pallets of different sizes, thereby improving the flexibility and versatility of the stacker 8. The two second fork arms 21 being set between the two first fork arms 11 can also ensure the stability of the goods during the handling process.

[0025] The first fork 1 and the second fork 2 are connected to the stacker 8 via the first rail assembly 3 and the second rail assembly 4, respectively. Connecting the first fork 1 and the second fork 2 to the stacker 8 via the first rail assembly 3 and the second rail assembly 4 allows the forks to be moved smoothly and accurately to the desired positions, giving the first fork 1 and the second fork 2 a telescopic function, thereby accommodating pallets of a wider range of sizes, thereby improving operational efficiency and safety.

[0026] Furthermore, the first rail assembly 3 and the second rail assembly 4 are fixed to the stacker 8 via a pad 5. The pad 5 can be provided with shock-absorbing and sound-absorbing materials, thereby enhancing the connection stability between the rail assembly and the stacker 8, reducing vibration and noise during operation, and extending the service life of the entire system.

[0027] A first motor 6 for driving the first fork 1 is fixedly mounted on the first rail assembly 3, and a second motor 7 for driving the second fork 2 is fixedly mounted on the second rail assembly 4. By equipping the first fork 1 and the second fork 2 with the first motor 6 and the second motor 7, respectively, the movements of the two forks can be independently controlled as needed, increasing the flexibility of system operation.

[0028] The first motor 6 is connected to the first fork 1 through a first driving wheel box 61, and the second motor 7 is connected to the second fork 2 through a second driving wheel box 71 (the driving wheel box is an existing technology for driving the fork, which plays the function of driving the fork to extend and slide, and will not be described in detail here).

[0029] Further preferably, the first fork arm 11 and the second fork arm 21 are of the same length, and the first fork arm 11 and the second fork arm 21 are aligned at their most extended positions. This design of the fork arms being of the same length and aligned at their most extended positions ensures the ability to support pallets of different sizes while also ensuring the balance and stability of the pallets during transport.

[0030] Preferably, the first motor 6 and the first driving wheel box 61 are arranged at the end of the first slide rail group 3 away from the stacker 8, and the second motor 7 and the second driving wheel box 71 are arranged at the end of the second slide rail group 4 close to the stacker 8.

[0031] By arranging the first motor 6 and the first drive wheel box 61 at the end of the first slide rail group 3 away from the stacker 8, and the second motor 7 and the second drive wheel box 71 at the end of the second slide rail group 4 close to the stacker 8, such a distributed placement method can effectively place the center of gravity of the load in the appropriate position, thereby improving the stability of the overall operation.

[0032] When handling small items, the second motor 7 driving the second fork arm 21 is driven independently, allowing only the second fork 2 to pick up the item. This design allows the system to be more energy-efficient and efficient when handling small items, as it eliminates the need to activate both the first and second motors 6 and 7 simultaneously. The second motor 7 is connected to the second fork 2 via the second drive wheel box 71, providing sufficient power to lift small items. During this time, the first fork 1 remains stationary or retracted, not participating in the operation, thereby reducing mechanical wear and maintenance costs.

[0033] When picking up large cargo, the first and second motors 6 and 7 driving the first and second forks 1 and 2 are driven synchronously, driving the first and second fork arms 11 and 21 forward simultaneously. This dual-motor collaboration distributes the pressure from the cargo weight, improving the overall stability and load-bearing capacity of the structure. The first and second motors 6 and 7 are connected to their respective forks via their respective drive wheel housings, ensuring smooth and synchronized extension of the two fork arms to accommodate the length and width requirements of large cargo pallets.

[0034] To further improve the fork's load capacity, the fork structure can be mechanically optimized. The fork arm's structural strength is enhanced, high-strength materials are used, and the connection between the fork arm and the rail assembly is optimized to reduce stress concentration and increase service life. Furthermore, by adding pressure sensors at locations such as the pad 5 and working in conjunction with a control system, precise control of the motor's output force can be achieved. This automatically adjusts the output of the two motors based on the weight and size of the cargo, ensuring the safety and reliability of the fork during operation.

[0035] This method is not only suitable for cargo of various sizes, but also can accommodate large cargo with correspondingly heavy weights, thereby increasing the fork's carrying capacity. The flexible drive mechanism enables the stacker 8 to quickly switch operating modes, ensuring efficient and stable cargo handling, whether using the second fork 2 alone or both the first and second forks 1 and 2.

Claims

1. A fork structure for pallets of various sizes, characterized by: The invention comprises a first fork (1) and a second fork (2) mounted on a stacker (8), wherein the first fork (1) comprises two first fork arms (11), and the second fork (2) comprises two second fork arms (21), wherein the two second fork arms (21) are arranged between the two first fork arms (11).

2. A fork structure for multi-sized pallets according to claim 1, characterized in that: The first fork (1) and the second fork (2) are connected to the stacker (8) via a first slide rail group (3) and a second slide rail group (4), respectively.

3. The fork structure for multi-sized pallets according to claim 2, characterized in that: The first slide rail group (3) and the second slide rail group (4) are both fixed on the stacker (8) via a pad (5).

4. The fork structure for multi-sized pallets according to claim 2, characterized in that: A first motor (6) for driving the first fork (1) is fixedly mounted on the first slide rail group (3), and a second motor (7) for driving the second fork (2) is fixedly mounted on the second slide rail group (4).

5. The fork structure for multi-sized pallets according to claim 4, characterized in that: The first motor (6) is connected to the first fork (1) via a first driving wheel box (61), and the second motor (7) is connected to the second fork (2) via a second driving wheel box (71).

6. The fork structure for multi-sized pallets according to claim 5, characterized in that: The first fork arm (11) and the second fork arm (21) have the same length, and the first fork arm (11) and the second fork arm (21) are aligned at their most extended positions.

7. The fork structure for multi-sized pallets according to claim 6, characterized in that: The first motor (6) and the first driving wheel box (61) are arranged at an end of the first slide rail group (3) away from the stacker (8), and the second motor (7) and the second driving wheel box (71) are arranged at an end of the second slide rail group (4) close to the stacker (8).

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