Dynamic Concave Cover Plate for Multi-Crop Threshing Adjustment
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Solution Overview
Problem
Existing combine harvesters face challenges in efficiently adjusting and installing threshing concave and separator grate assemblies to accommodate different crop types, with current solutions being cumbersome, labor-intensive, and prone to detachment during harvest season.
Innovation Solution
A dynamic cover plate system that can be quickly attached and adjusted to the exterior of threshing concave and separator grate assemblies, using hooking clasp elements and latching mechanisms to modify airflow characteristics and improve threshing and separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional threshing concave and separator grate assemblies are used, then the harvester can process crops, but adjusting and installing different grate assemblies for different crop types is cumbersome and labor-intensive
Solution Approach 1:
The cover plate is divided into multiple adjustable sections that can be independently positioned to create different opening patterns. This segmentation allows the single cover plate to adapt to various crop types by adjusting individual sections rather than replacing entire grate assemblies.
Solution Approach 2:
The cover plate incorporates movable and adjustable components that allow dynamic reconfiguration of the opening pattern during harvest season. The adjustable cover plates can be repositioned to modify airflow characteristics based on crop requirements without requiring labor-intensive installation of different assemblies.
2Productivity
If cover plate assemblies are added to modify airflow characteristics, then threshing capability and grain capture are enhanced, but device complexity increases
Solution Approach 1:
The cover plate assembly serves multiple functions: it modifies airflow characteristics, enhances threshing capability, captures grain, and can be adjusted for different crop types. This multi-functionality justifies the added complexity by consolidating several functions into a single adjustable component rather than requiring multiple separate systems.
Solution Approach 2:
The cover plate assembly is designed to fit over and integrate with the existing grate assemblies, nesting the adjustable cover structure within the framework of the traditional threshing mechanism. This nesting approach allows the enhanced functionality to be added without completely redesigning the base system.
3Adaptability or versatility
If adjustable cover plates are used to modify airflow characteristics, then a single set of grate assemblies can handle more crop types, but the risk of detachment during harvest increases
Solution Approach 1:
The cover plates are designed with curved surfaces that conform to the cylindrical shape of the threshing mechanism. This curvature provides continuous contact along the surface, distributing attachment forces and reducing the risk of detachment compared to flat plates that would have point or line contacts.
Solution Approach 2:
The system uses intermediary attachment mechanisms such as clips, latches, or fastening elements that mediate between the cover plate and the grate assembly framework. These intermediaries provide secure mechanical connection while allowing the cover plate to maintain its adjusted position during the vibratory and high-stress harvest operation.
Data Source
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AI summary
The invention comprises an automated, dynamic cover plate system, which may be quickly attached, detached and adjusted to the exterior of a concave grate of a combine harvester in order to adjust the flow characteristics of the concave or separator grate assemblies. The automated, dynamic cover plate system improves the threshing capability of the rasp bar threshing cylinder while simultaneously capturing additional threshed grain. The automated, dynamic cover plate system of the present invention is designed to be controlled, either manually or automatically, by the operator of the combine harvester or by a computerized or automated intelligence system.