Spreader Arrangement Cover Plates Windrow Chute
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current spreader arrangements for agricultural harvesters lack ease of reconfiguration between spreading and windrowing modes, requiring complex adjustments and potential interference with harvesting operations.
Innovation Solution
A spreader arrangement featuring rotatable spreader discs, cover plates, and a windrow chute, allowing for easy switching between spreading and windrowing modes by positioning cover plates above the discs and the windrow chute below, with an adjustable door directing crop material accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the spreader arrangement uses a complex mechanism to switch between spreading and windrowing modes, then the functionality is improved, but the device complexity increases
Solution Approach 1:
The spreader arrangement is divided into functionally independent segments: spreader discs for scattering mode, cover plates for directing mode, and a windrow chute for channeling. Each segment can be independently positioned or removed, allowing mode switching without complex interlocking mechanisms. The segmentation enables simple attachment/detachment or positioning of components to achieve different operational modes.
Solution Approach 2:
The cover plates and windrow chute are designed with movable or adjustable positioning capabilities rather than fixed installations. The cover plates can be positioned above the spreader discs to direct material, while the windrow chute can be positioned below to receive directed material. This dynamic positioning allows the system to adapt between modes through simple repositioning rather than complex mechanical transformations.
2Adaptability or versatility
If the spreader arrangement requires multiple components for mode switching, then the adaptability is improved, but the ease of operation deteriorates
Solution Approach 1:
The cover plates serve multiple functions: they act as protective covers for the spreader discs during transport, and when positioned above the discs, they function as directing surfaces to channel material into the windrow chute. The windrow chute similarly serves as both a protective enclosure and a directing channel. This multi-functionality reduces the number of separate components needed for mode switching.
Solution Approach 2:
The windrow chute is designed to be foldable or removable, allowing it to be taken out of the way when spreading mode is required. This extraction principle enables simple mode switching by merely relocating the chute rather than reconfiguring the entire system. The chute can be folded up or removed completely, leaving the spreader discs exposed for direct material discharge.
Data Source
Figure 1
Figure 2
AI summary
A spreader arrangement (12) for an agricultural harvester (10) includes a pair of spreader discs (16), at least one cover plate (24) and a windrow chute (26). The spreader discs (16) are generally horizontally arranged and rotatable in a counter rotating manner. Each cover plate (24) is positioned at a location above a respective spreader disc (16), and is operable to inhibit a flow of crop material to the respective spreader disc (16) when positioned above the respective spreader disc (16). The spreader arrangement (12) is characterized in that the windrow chute (26) has an entrance end (30) positioned below the pair of cover plates (24) and above the pair of spreader discs (16), whereby crop material is discharged from the top of the cover plates (24) into the windrow chute (26).