Independent Tool Seeder for Selective Soil Preparation
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Solution Overview
Problem
Current seeders require significant land preparation, such as decompaction and plowing, which is costly and environmentally impactful, and do not allow for the application of multiple compounds at different depths during a single pass, nor do they effectively manage soil expansion after seeding.
Innovation Solution
A seeder design with independently movable and rotatable tools, including an opening disc, decompactor, sowing device, and closing wheel, that can be configured to create slots, deposit compounds, and manage soil expansion, while maintaining constant pressure and weight, allowing for selective tool use and operation without the need for extensive land preparation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an opening disc is used to cut the soil, then the furrow is created effectively, but soil loosening increases excessively
Solution Approach 1:
The opening disc is segmented into multiple independent cutting elements arranged radially. Each segment can be adjusted independently to control the depth and intensity of soil cutting, allowing effective furrow creation while minimizing excessive soil loosening by distributing the cutting action across multiple controlled segments rather than a single aggressive disc
Solution Approach 2:
The opening disc features cutting elements with varying local properties - some segments have sharper edges for effective cutting while others have more gradual edges to minimize soil disturbance. The disc can be configured with different segment densities in different radial zones, creating localized cutting quality that balances furrow effectiveness with soil structure preservation
2Device complexity
If multiple tools are mounted on a common support, then the machine structure is simplified, but vertical movement of one tool affects the others
Solution Approach 1:
While tools remain mounted on a common support structure for simplicity, each tool is segmented from the others through individual mounting mechanisms that allow independent vertical movement. The support structure includes separate suspension systems or adjustment mechanisms for each tool, enabling them to respond independently to soil conditions while maintaining their positions relative to the support
Solution Approach 2:
The mounting system incorporates dynamic elements such as springs, dampers, or hydraulic cylinders that allow each tool to move vertically independently in response to terrain variations. This dynamic mounting maintains the simplified common support structure while ensuring that vertical movement of one tool does not transmit to other tools, preserving both structural simplicity and operational independence
3Reliability
If significant soil preparation is performed before sowing, then sowing conditions are improved, but cost and environmental impact increase
Solution Approach 1:
The opening disc performs preliminary soil preparation action directly at the sowing location by creating precise furrows with minimal disturbance to surrounding soil. This localized preliminary action eliminates the need for extensive area-wide soil preparation operations such as plowing and subsoiling, improving sowing conditions only where needed while reducing environmental impact
Solution Approach 2:
The invention extracts the essential soil preparation function from the traditional multi-step preparation process (subsoiling, stubble cultivation, plowing) and concentrates it into a single opening disc operation that creates furrows directly. This extraction eliminates unnecessary intermediate preparation steps that increase cost and environmental impact while still providing adequate sowing conditions
Data Source
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AI summary
The invention relates to an agricultural machine (10) comprising a support (12) intended to be towed by an agricultural machine in a direction of advance (F), the agricultural machine comprising: - a first tool (14); - a main wheel (24); the first tool and the main wheel each being mounted on the support in a movable manner at least in one vertical direction, independently of each other.