Vehicle Rotation Device Grid Cell Mechanism
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Solution Overview
Problem
In automated storage and retrieval systems, container handling vehicles face limitations in changing their orientation with respect to the framework structure, particularly when a cantilevered lifting part obstructs access or when positioning is required adjacent to other structures, necessitating the ability to rotate the vehicle body for efficient operation.
Innovation Solution
A modular rotation device is integrated into the grid cell of the framework structure, powered by the vehicle itself, utilizing a mechanical linkage to transfer rotational force from the vehicle to a stationary member, allowing the vehicle to rotate and change its orientation without the need for external power sources or extensive installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the vehicle uses a cantilevered lifting part for container handling, then the lifting function is achieved, but the access to certain areas is obstructed and orientation change is limited
Solution Approach 1:
The patent applies the dynamics principle by enabling the vehicle body to rotate dynamically between different orientations (e.g., 0度和90度) while maintaining the cantilevered lifting part in its extended position. This allows the vehicle to adapt its orientation based on operational needs, resolving the contradiction between maintaining the lifting function and achieving access flexibility.
2Adaptability or versatility
If the vehicle rotates using external power sources and extensive installation, then rotation capability is achieved, but the device complexity and installation requirements increase
Solution Approach 1:
The patent applies the self-service principle by utilizing the vehicle's own drive wheels to generate the rotational force needed to rotate the vehicle body. The drive wheels engage with the rail system to provide both propulsion and rotation, eliminating the need for separate external power sources or complex rotation mechanisms, thus reducing device complexity while achieving rotation capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables flexible and efficient orientation changes of vehicles within the automated storage and retrieval system, enhancing access and positioning capabilities without the need for additional power infrastructure, thus improving operational flexibility and accessibility.
Implementation Method 1
utilizing a mechanical linkage to transfer rotational force from the vehicle to a stationary member
Data Source
AI summary
A rotation device rotates an autonomous vehicle operating on a rail system of an automated storage and retrieval system. The system is of the type having a framework structure including a plurality of vertical upright members defining storage columns for storing stacks of storage containers, with the rail system arranged on the framework structure. The rail system includes perpendicular tracks, the intersection of which define a grid having grid cells. The grid cells define openings to the storage columns. The autonomous vehicle is of the type having wheels that travel along the rail system, and which changes direction by alternatively lifting or lowering sets of wheels. One set of wheels is adapted for travel of the vehicle in a first direction, and a second set of wheels is adapted for travel of the vehicle in a second direction, perpendicular to the first direction. The rotation device includes a module adapted for mounting in a grid cell beneath a plane defined by the rail system of the framework structure, and a stationary member affixed to the module. The stationary member is arranged to receive a force, transferred from the container handling vehicle to the stationary member by a mechanical linkage, and to convert the force into a rotation of the vehicle.