AGV Load Platform Stabilization via Counter-Rotation
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Solution Overview
Problem
Automated guided vehicles (AGVs) experience instability when carrying loads due to movement, particularly during acceleration, deceleration, and turning, causing loads to shift or fall from the platform.
Innovation Solution
A load supporting apparatus with a platform coupled to synchronized screw jacks for vertical translation and a rotation mechanism counter-synchronized with the AGV's turning motor to rotate the platform in the opposite direction, providing stability by isolating rotational forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the AGV uses a simple platform to carry loads, then the device complexity is low, but the load stability deteriorates during acceleration, deceleration, and turning
Solution Approach 1:
The patent applies the dynamics principle by making the platform movable and adjustable rather than fixed. The platform is coupled to synchronized screw jacks that enable vertical translation, and a rotation mechanism that allows the platform to rotate independently. This dynamic configuration enables the platform to adapt its orientation and position to counteract forces during AGV movement, thereby maintaining load stability while managing structural complexity.
Solution Approach 2:
The patent segments the load support system into independent functional components: the platform, the lifting mechanism with screw jacks, and the rotation mechanism. This segmentation allows each component to perform its specific function (vertical adjustment, rotational adjustment) independently, enabling complex stabilization behavior through coordinated action of simpler individual parts.
2Device complexity
If the platform is fixed on the chassis, then the device complexity is low, but the load stability deteriorates when the AGV turns
Solution Approach 1:
The rotation mechanism enables the platform to dynamically adjust its orientation during AGV turning. By allowing the platform to rotate independently from the chassis, the system can counteract centrifugal forces and maintain load stability without requiring a completely rigid and complex mounting structure.
Solution Approach 2:
Instead of fixing the platform rigidly to the chassis, the patent inverts the approach by making the platform rotatable and adjustable. The rotation mechanism allows the platform to move in the opposite direction to AGV turning, effectively canceling out rotational forces and maintaining load stability through counter-movement rather than rigid fixation.
3Stability of the object's composition
If synchronized screw jacks are used to translate the platform vertically, then the load stability is improved, but the device complexity increases
Solution Approach 1:
The patent merges the lifting function into the existing jack mechanism, which is a common component in AGV suspension systems. By utilizing and synchronizing existing jack components rather than introducing entirely new lifting mechanisms, the system achieves vertical platform adjustment with relatively controlled complexity increase.
Solution Approach 2:
The screw jacks serve multiple functions: they provide vertical lifting capability, enable platform height adjustment, and contribute to overall suspension functionality. This multi-functionality reduces the need for separate dedicated lifting mechanisms, thereby limiting the increase in device complexity while achieving load stability.
4Stability of the object's composition
If the rotation mechanism counter-synchronizes with the turning motor, then the load stability is improved during turning, but the device complexity increases
Solution Approach 1:
The counter-synchronization of the rotation mechanism with the turning motor implements a feedback-based control strategy. The rotation mechanism responds to turning motor activity by rotating the platform in the opposite direction, creating a feedback loop that actively counteracts centrifugal forces during turns and maintains load stability through real-time adjustment.
Solution Approach 2:
The rotation mechanism inverts the turning motion by rotating the platform in the opposite direction to the AGV's turn. This counter-rotation cancels out the effects of turning on the load, providing stability without requiring complex active control systems, as the geometric inversion alone achieves the stabilization effect.
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
The solution effectively stabilizes loads on AGVs during movement and turning, preventing loads from falling and ensuring stable support, even on uneven surfaces.
Implementation Method 1
a lifting mechanism comprising three or more screw jacks, the three or more screw jacks vertically translate relative to the chassis to vertically translate the platform
Implementation Method 2
a rotation mechanism coupled to the platform, the rotation mechanism configured to rotate the platform in response to the AGV turning
Data Source
AI summary
A system and a method for an automated guided vehicle (AGV) includes a chassis; a load supporting apparatus disposed on the chassis, the load supporting apparatus including a platform to support a load, a lifting mechanism comprising one or more jacks, the platform coupled to the one or more jacks, the one or more jacks configured to raise or lower the platform, and a rotation mechanism coupled to the platform, the rotation mechanism configured to rotate the platform, wherein the rotation mechanism is configured to rotate the platform in response to the AGV turning.