Dual-Rack Transport Vehicle With Rotating Drive Arm Stability
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Solution Overview
Problem
Transport robots face instability when lifting packages to high positions, as existing systems are unable to securely manipulate packages at heights proportional to their size.
Innovation Solution
A transport system featuring a transport vehicle with two racks and a drive arm that moves boxes in and out of the racks by changing its orientation, allowing for stable manipulation of packages at high positions, including the use of a control unit to autonomously navigate and manage the movement of boxes between racks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a transport robot lifts a package to a high position, then the package can be transferred to another location, but the transport robot becomes unstable and may fall down
Solution Approach 1:
The transport system is divided into a stationary base unit and a movable transport robot. The base unit provides a stable platform with racks for package storage, while the robot handles only the movement and transfer tasks. This segmentation allows the robot to operate at lower heights without compromising overall system stability.
Solution Approach 2:
The stationary base unit acts as an intermediary between the transport robot and the final destination. Instead of the robot lifting packages to high positions, the base unit's racks receive packages at lower heights, mediating the transfer process and eliminating the stability issue.
2Reliability
If the transport vehicle uses a large size to stabilize the drive arm at a high position, then package manipulation stability improves, but the vehicle cannot enter narrow spaces
Solution Approach 1:
The system separates the stability function (provided by the large stationary base unit) from the mobility function (provided by the small transport robot). This allows the robot to be compact for navigating narrow spaces while the base unit provides the necessary stability for package handling.
Solution Approach 2:
The solution moves the stability requirement from the horizontal dimension (large vehicle footprint) to the vertical dimension (tall stationary base unit with multi-level racks). This allows the transport robot to remain small and mobile while the base unit provides stability through its vertical structure.
3Device complexity
If the transport robot operates alone without a stationary base unit, then the system structure is simplified, but the robot cannot stably manipulate packages at high positions
Solution Approach 1:
The system merges the transport function (robot) with the storage and stabilization function (stationary base unit). By combining these functions into a coordinated system, the robot benefits from the base unit's stability without needing to carry its own complex stabilization mechanisms.
Solution Approach 2:
Instead of making the robot itself large and stable, the system uses a stationary copy of the stability function through the base unit. The base unit replicates the stability role that would otherwise require a large robot design, allowing the actual robot to remain small and simple.
Data Source
AI summary
The transport system has a transport vehicle. The transport vehicle includes two racks, each of the two racks being configured to accommodate a plurality of boxes, and a drive arm that is disposed at a position between the two racks and that moves each of the boxes in and out of each of the racks. The transport vehicle moves each of the boxes in and out of each of the two racks by changing an orientation of the drive arm.