Shiploader Pivot Coupling for Transport Mode Transition
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Solution Overview
Problem
Shiploader systems face challenges in efficiently transitioning between operational and transport configurations, particularly in supporting and reconfiguring the truck unloader and conveyor systems for radial, longitudinal, and transverse movements, which affects the loading and transport efficiency of aggregate materials.
Innovation Solution
The shiploader system incorporates a pivotally coupled truck unloader and stacking conveyor with a telescoping undercarriage and actuated wheels, allowing for radial travel and vertical/horizontal pivoting, supported by a control system that manages the reconfiguration of wheels and conveyor positions using actuators and motors for efficient operation and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the truck unloader and stacking conveyor are pivotally coupled to enable radial travel and positioning, then the adaptability and operational flexibility are improved, but the device complexity and mechanical stress increase
Solution Approach 1:
The shiploader system is divided into functionally independent modules: the stacking conveyor assembly, the truck unloader assembly, and the coupler assembly. Each module can be independently positioned and controlled, allowing the system to adapt to different operational configurations without requiring complete system redesign.
Solution Approach 2:
The system employs dynamic positioning capabilities through pivotal couplings that allow the stacking conveyor and truck unloader to rotate and adjust their positions. The actuators enable real-time adjustment of the relative positions of these components, providing operational flexibility while maintaining structural integrity through controlled movement rather than fixed rigid connections.
2Speed
If the truck unloader is raised and supported by the stacking conveyor for transport, then the mobility is improved, but the device complexity and support structure requirements increase
Solution Approach 1:
The system transitions between operational and transport configurations through dynamic repositioning. During transport, the truck unloader is raised and supported by the stacking conveyor assembly, converting the system from a ground-supported to a self-supported configuration. This dynamic adaptability allows the same structure to serve dual purposes without requiring completely separate support systems.
Solution Approach 2:
The stacking conveyor assembly serves multiple functions: it acts as both the material conveying structure during operation and as the support structure for the truck unloader during transport. This multi-functionality reduces the need for separate dedicated support structures, simplifying the overall system while maintaining mobility capabilities.
3Adaptability or versatility
If the stacking conveyor is pivotally coupled to enable radial travel, then the positioning capability and adaptability are improved, but the mechanical stress and structural requirements increase
Solution Approach 1:
The pivotal coupling system is segmented into discrete rotational joints at strategic locations: one coupling the stacking conveyor to the coupler, and another coupling the truck unloader to the coupler. This segmentation allows each joint to handle specific directional stresses independently, distributing the mechanical load more effectively than a monolithic rigid structure would require.
Solution Approach 2:
The pivotal couplings enable the stacking conveyor and truck unloader to rotate and adjust their positions dynamically. This dynamic positioning capability allows the system to adapt to different operational requirements while the actuator-controlled movement ensures that structural stresses are applied gradually and controllably, preventing sudden shock loads that would require excessive structural strength.
Data Source
AI summary
Systems, methods and apparatus are provided for shiploading.