Tunnel stackers are developed from bridge stackers. It is the core lifting and transportation equipment of automated three-dimensional warehouses. Running along the track in the driveway of high-rise shelves, achieving the functions of receiving and shipping goods. Stackers are generally divided into single column and double column structures. The operation is required to be completed by three driving mechanisms, namely, walking, lifting, and forking. The internationally advanced servo control system and address recognition system are used for full closed-loop control, and high-precision address recognition methods such as barcode or laser ranging are used to achieve high-precision operation of the stacker. The stacker has a large load of about 8 tons and a walking speed of 400 m/min.
The single column stacker adopts a rectangular frame structure, consisting of a column and two upper and lower beams. The structural stiffness is worse than that of a double column stacker, but it is more flexible. The lifting capacity is generally less than 2 tons, suitable for small objects. The lifting height is usually less than 16 meters. The double column stacker consists of two columns and two beams. Compared with single column stackers, the structural stability and strength are greatly improved. Suitable for warehouse operations with various lifting heights. The lifting capacity can reach 5 tons, and can be increased according to the actual situation of different customers.
As an important transportation equipment in automated warehouse, the selection of its technical parameters will directly affect the operational efficiency and economic benefits of the entire warehouse. Reasonable selection of various parameters will greatly improve the operational efficiency and economic benefits of the entire system. The main parameters related to the speed of the stacker are horizontal running speed, lifting speed, and fork telescoping speed. The level of these three parameters is directly related to the warehousing efficiency of the warehouse.
