Flexible Connecting Device for Multi-Module Service Vehicles
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Solution Overview
Problem
Automated storage and retrieval systems face instability issues when vehicles with multiple wheel modules travel over uneven tracks, risking derailment and accidents.
Innovation Solution
The implementation of a flexible connection system using two coupled wheel modules with a connecting device and elastic components, such as a torsion bar and shock-absorbing material, ensures simultaneous track shifting and absorption of track unevenness, maintaining vehicle stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wheel modules are coupled together to form a vehicle, then the vehicle can operate in automated storage and retrieval grids, but the vehicle becomes unstable when traveling over uneven tracks
Solution Approach 1:
The patent applies a flexible connecting device with elastic components (springs, rubber elements, or dampers) between wheel modules to allow relative movement and absorption of track unevenness, preventing instability while maintaining vehicle operation capability
Solution Approach 2:
The connecting device changes the mechanical parameters between wheel modules by introducing elasticity and damping characteristics, allowing the system to adapt to varying track conditions while maintaining stability
2Device complexity
If rigid connection is used between wheel modules, then structural simplicity is maintained, but derailment risk increases on uneven tracks
Solution Approach 1:
The patent incorporates shock-absorbing elements (springs, rubber, or dampers) in the connecting device beforehand to cushion the impact of track unevenness before it can cause derailment, maintaining both simplicity and reliability
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
This solution prevents derailment and ensures safe operation of vehicles with multiple wheel modules over uneven tracks by allowing flexible movement and simultaneous track adjustment, enhancing safety and stability.
Implementation Method 1
an elastic component at each attachment point between the connecting device and the frame of the two or more wheel modules
Data Source
AI summary
A system for connecting two or more wheel modules operating on an automated storage and retrieval system, wherein the system comprises: a rail system comprising a first set of parallel rails arranged to guide movement of a container handling vehicle in a first direction (X) across the top of a frame structure, and a second set of parallel rails arranged perpendicular to the first set of rails to guide movement of the container handling vehicle in a second direction (Y) which is perpendicular to the first direction (X), the first and second sets of parallel rails dividing the rail system into a plurality of grid cells, and a Service Vehicle Unit (SVU) configured to operate on the rail system and is wherein that the SVU is mounted on two or more wheel modules that are coupled together using a connecting device, wherein the connecting device and the frame of the two or more wheel modules are attached to each other at attachment points and that there are placed a shock absorbing component at the attachment point between the connecting device and the frame of the two or more wheel modules.