Windrow Merger Folding System and Float Mechanisms
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Solution Overview
Problem
Conventional windrow mergers with a single pickup head are inadequate for large-scale operations, as they have limited capacity and effectiveness, and often produce uneven windrows due to projecting structures that cause material to swirl and clump during conveyance.
Innovation Solution
A windrow merger arrangement with three independent pickup and transfer units, featuring a folding system for simultaneous rearward, outward, and upward folding to prevent interference, along with float mechanisms to adjust to terrain and transfer weight, and a rub rail to create a smooth windrow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple pickup head assemblies are used to achieve greater merging rates, then productivity increases, but device complexity increases due to folding assemblies and structural support requirements
Solution Approach 1:
The merger is divided into multiple independent pickup head assemblies (first, second, and third assemblies) that can be separately folded and unfolded. Each assembly operates independently with its own conveyor belt and pickup head, allowing the system to handle larger volumes of material while maintaining manageable complexity through modular design.
Solution Approach 2:
The pickup head assemblies are designed to be dynamically movable between extended and retracted positions via folding mechanisms. This dynamic capability allows the merger to adapt its configuration based on operational needs, increasing productivity when fully extended and reducing complexity and transport requirements when folded.
2Ease of operation
If folding assemblies are used to improve transportability, then ease of operation improves, but device complexity increases due to relative positioning and structural support requirements
Solution Approach 1:
The folding assemblies are designed to nest within each other when retracted, with the first, second, and third pickup head assemblies positioned to fit together in a compact configuration. This nesting arrangement maximizes transportability by minimizing the overall size when folded, while the structural support framework provides the necessary stability during both folded and extended states.
3Device complexity
If conventional merger heads with projecting structure are used, then device complexity is reduced, but manufacturing precision deteriorates due to material swirling and clumping
Solution Approach 1:
The conveyor belts are designed with smooth, continuous surfaces that lack the projecting structures found in conventional merger heads. This local modification to the conveyor surface quality eliminates material swirling and clumping at critical locations, producing smoother windrows while maintaining overall device simplicity through the use of standard conveyor components.
Data Source
AI summary
A windrow merger including three pickup and transfer units, a folding system, and a plurality of float mechanisms. The folding system employs simultaneous rearward, outward, and upward folding motion so as to ensure none of the units interfere with the other units while folding, and likewise while unfolding. The folding system can further fold and unfold each of the three pickup and transfer units at the same time. During merging operations, the plurality of float mechanisms of the windrow merger limits the range of motion of each pickup and transfer unit. The float mechanisms further transfer a portion of the weight of each pickup and transfer unit from the ground to the frame of the merger. The units of the windrow merger can also include a rub rail having a surface that reduces swirling or clumping of material as the material is conveyed toward an end of the windrow merger.