The four-way shuttle can complete the operation in the "front, rear, left, and right" directions. It has two sets of wheel trains, which are responsible for the movement in the X-direction and the Y-direction, while the multi-layer shuttle has only one set of Vertical Carousels. The four-way shuttle solves the problem that the multi-layer shuttle cannot move laterally, which is also the biggest feature of the four-way shuttle.
Four-way shuttle and multi-layer shuttle technology
The problems solved or faced by the multi-layer shuttle are mainly the positioning, power supply and communication problems in the roadway. For example, in the early multi-layer shuttle, the power supply basically uses the trolley wire method. It is a relatively traditional power supply method, and the design is also Relatively simple, but this does not apply to four-way shuttles, which require battery power. At the same time, the four-way shuttle also needs to solve problems such as roadway replacement, vehicle avoidance, vehicle scheduling, and layer change, especially the scheduling technology will greatly affect the overall operating efficiency.
The use of four-way shuttle and multi-layer shuttle
The four-way shuttle has the ability to move in four directions. It solves the problem that the multi-layer shuttle cannot move laterally, and reflects that the four-way shuttle has a larger application range and greater flexibility. For example, the layout of the hoist and the layout of the conveying system, the four-way shuttle can be flexibly arranged according to the specific application environment, and some irregular venues can also be used reasonably, which cannot be achieved by the multi-layer shuttle, and the warehouse space utilization rate Obtained a substantial improvement. Because the four-way shuttle has a horizontal track, it has higher requirements for shelf accuracy and installation accuracy standards, which may lead to an increase in installation time and cost. The four-way shuttle relies heavily on dispatching technology, which also raises the technical threshold and cost. From the perspective of maintenance, because of the uncertainty of the position of the four-way shuttle in the lane, the horizontal track restricts maintenance personnel from entering the interior of the shelf, so problems occur, and the difficulty of repair is correspondingly increased. The overall design and technology of the shelf are proposed New requirements.
Under normal circumstances, the single-machine cost of a four-way shuttle is higher than that of a multi-layer shuttle. However, Hao Sheng's four-way shuttle has a high utilization rate, and the number of use is small, and the total number of supporting hoists will also be reduced. It is still necessary to choose a shuttle racking system Determined according to specific project requirements.