The following provides a detailed introduction from the aspects of core structure, key features, mainstream parameters, driving methods, and applicable scenarios:
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Core structure composition
Its structure abandons the middle fork and adopts a double-layer nested design of "fixed fork+telescopic fork", with a compact overall structure and clear division of labor for each component:
Fixed forkAs the basic load-bearing component of the entire fork, it is directly rigidly connected to the stacker or shuttle truck body, and is often welded with lightweight steel. It mainly bears the static load of the telescopic fork and cargo, and is the core foundation for ensuring operational stability.
Telescopic forkIt is an executing component that can be directly inserted into a cargo pallet or bin. The front end is often designed with a guiding slope or limit stop edge, which facilitates quick alignment with the bottom hole of the pallet and prevents the cargo from slipping off. Aluminum alloy or lightweight high-strength steel are commonly used as materials to balance load-bearing capacity and flexibility in movement.
Auxiliary supporting componentsIncludes guidance mechanism and safety device. The guiding mechanism is mostly a roller set or slider guide rail with an upper and lower double row layout, which reduces the vertical shaking when the telescopic fork slides; The safety device is equipped with mechanical limit switches and photoelectric sensors. The former is used for emergency braking of the telescopic limit position, while the latter provides real-time feedback on the fork position to avoid overtravel operation.
Key performance characteristics
Travel itinerary and positioningThe travel distance is usually ≤ 1.2m, which can only meet the storage and retrieval needs of single depth shelves. The positioning accuracy is generally around ± 3mm, which is lower than the third level high-precision model, but sufficient to adapt to the routine operation of light goods without complex synchronous control logic.
bearing capacityBelonging to the category of light-duty forks, the rated load is generally ≤ 500kg. Due to the lack of a middle fork body to conduct the load, the structure is subjected to relatively direct forces and is not suitable for heavy-duty operations. Otherwise, fork body deformation or expansion jamming may occur.
Operational advantagesThe simple structure brings the advantages of low cost and low failure rate, and later maintenance only requires regular checks of chain tightness or guide rail lubrication, without the need for complex multi-stage transmission debugging; And the overall weight is light, with low energy consumption during expansion and contraction, which can improve the operational response speed of the equipment.
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Mainstream driving methods
Secondary telescopic forkThe driving force is mainly based on low-cost solutions that are suitable for light work, and there are two common ways:
Chain driveThis is the most mainstream method, which drives the active sprocket through a servo motor, connects the fixed fork and the telescopic fork with a chain, and uses the traction of the chain to achieve linear motion of the telescopic fork. This method is low-cost, easy to maintain, and suitable for the storage and retrieval of conventional lightweight goods such as electronic components and small material boxes.
belt driveIn some ultra light scenarios, belt transmission is used to transmit power through synchronous belts, resulting in lower operating noise but weaker load-bearing capacity. It is only suitable for extremely light goods weighing ≤ 200kg, such as the transportation of precision electronic components.
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Typical Applicable Scenarios
Due to its lightweight and short travel characteristics, it is suitable for scenarios with low storage density and travel requirements:
Small intelligent warehouseFor example, electronic component warehouses in electronic factories and drug turnover warehouses in pharmacies are used to access small material boxes or packaging boxes, and are used in conjunction with small stacker cranes to complete high-frequency light load operations.
Small scale logistics equipment matchingSuitable for lightweight AGVs, mini shuttles, etc., such as parcel sorting equipment in e-commerce stations and replenishment carts in convenience stores, it can flexibly achieve short distance transfer of goods.
Simple production workshopIn workshops such as food processing and light industry manufacturing, it is used to transport semi-finished turnover boxes, adapt to shallow temporary shelves, and fit the short distance and small batch operation rhythm in the workshop.
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Common manufacturer models
For example, AHJW40-45 series, AHJW50-55 series, etc,Secondary telescopic forkMulti adaptive small stacker crane, its corresponding fork width, telescopic stroke and other parameters can be slightly customized and adjusted according to the needs of light operations.
