High density automated storage solution for the shuttle three-dimensional warehouse system of mother and child vehicles

Description :

  The parent-child shuttle three-dimensional warehouse is a high-density automated warehousing system based on rail shuttle technology, aimed at solving the core pain points of low space utilization, poor manual picking efficiency, and chaotic inventory management in traditional warehouses. The system achieves fully automatic storage and retrieval of goods through a collaborative operation mode where the "mother vehicle" moves longitudinally in the aisle and the "child vehicle" moves laterally in the shelf layer. Typical working conditions are suitable for centralized storage of large quantities, few varieties, or medium varieties of goods in industries such as e-commerce logistics, cold chain food, pharmaceutical manufacturing, and automotive parts. The shuttle of mother and child vehicles in a three-dimensional warehouse can significantly increase the warehouse volume ratio to over 80%, while optimizing the path through intelligent scheduling algorithms to reduce equipment idle time and ensure stable operation in high flow inbound and outbound scenarios. It is a key infrastructure for modern intelligent logistics centers to achieve cost reduction and efficiency improvement.

  When selecting a mother and child shuttle for a three-dimensional warehouse, it is important to evaluate the building height, ground bearing capacity, and SKU characteristics of the warehouse. This system is particularly suitable for scenarios where the frequency of incoming and outgoing goods is relatively balanced and the batch size is large. If there is a significant difference in the peak value of incoming and outgoing inventory, it is necessary to calculate the transportation capacity based on the number of elevators. Compared with four-way shuttle vehicles, the flexibility of the mother child system in a single aisle is slightly weaker, but it has a cost advantage and is suitable for long aisle layouts; Compared with the AS/RS stacker crane system, the mother child system has higher flexibility and can adjust the system throughput flexibly by increasing the number of daughter cars. Moreover, a single point of failure does not affect the overall system operation. Not applicable to scenarios including scattered picking of ultra small items (recommended with Miniload system) or production line side warehouses with extreme real-time requirements for access speed. When selecting, it is necessary to clarify the standardization level of tray size, as non-standard trays can significantly increase equipment adaptation costs.

  The installation of the shuttle between the mother and child vehicles in the three-dimensional warehouse needs to be carried out after the shelf construction is completed, with a focus on debugging the track flatness and communication signal coverage to ensure the stability of the child vehicles during high-speed operation. In a typical usage cycle, the daily operating time of the equipment can reach more than 20 hours. It is recommended to establish a regular maintenance plan. Daily maintenance mainly includes checking the wear of the shuttle wheel assembly, cleaning foreign objects on the track, monitoring the health status of the battery, and tightening electrical connections. Common fault diagnosis includes: if the positioning deviation of the sub car is large, it is necessary to check the encoder signal or track dust accumulation; If communication is interrupted, it is necessary to check the status of the wireless AP node. Operators should receive professional training and be familiar with the location of emergency stop buttons and manual rescue procedures. Through scientific preventive maintenance, the service life of the mother and child vehicles shuttling through the three-dimensional warehouse can be effectively extended, ensuring the continuity and safety of the logistics chain.

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