Off-Axis Row Cleaner Pivot for Reduced Soil Throw
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Solution Overview
Problem
Existing row cleaners with single-bladed designs often result in a rough field finish, excessive residue coverage, and windrowing issues due to excessive soil throw, leading to reduced opener performance and seed germination efficiency.
Innovation Solution
Implementing a twin-bladed row cleaner assembly with an off-axis pivot and actuator mechanism that allows blades to pivot between engaged and retracted positions, minimizing soil throw and optimizing residue removal, while maintaining optimal positioning during planting and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-bladed row cleaner design is used, then device complexity is reduced, but field finish quality deteriorates and excessive soil throw occurs
Solution Approach 1:
The row cleaner blade is divided into multiple segments (twin-bladed design) that can independently contact and clean the soil surface. This segmentation allows for more effective residue removal and smoother field finish compared to a single-blade design, while maintaining manageable complexity through modular construction
2Device complexity
If a single-bladed row cleaner design is used, then device complexity is reduced, but residue coverage control deteriorates
Solution Approach 1:
The twin-bladed configuration segments the cleaning function across two blades, allowing better distribution and control of residue removal. This enables more precise control over the quantity of residue coverage compared to a single-blade design that either over- or under-cleans
3Manufacturing precision
If cleaner blades are positioned close to opener assembly, then planting precision is improved, but soil throw increases
Solution Approach 1:
The cleaner blades are designed with pivot capability, allowing them to dynamically adjust their position and angle during operation. This dynamic adjustment enables optimal positioning close to the opener for precision planting while minimizing soil throw through adaptive blade orientation
Solution Approach 2:
The off-axis pivot configuration creates an asymmetric arrangement where the cleaner blades can be positioned optimally relative to the opener assembly. This asymmetric design allows close positioning for precision while the offset pivot point helps reduce soil throw by creating a more favorable mechanical geometry
4Manufacturing precision
If off-axis pivot configuration is used, then planting precision is improved, but device complexity increases
Solution Approach 1:
The off-axis pivot configuration uses an asymmetric geometric arrangement that achieves precise blade positioning through simple mechanical means. The asymmetric design allows the cleaner blades to be accurately positioned relative to the opener without requiring complex control systems or multiple adjustment mechanisms
Data Source
AI summary
A row cleaner is provided that includes a pivot. An axis of rotation of the pivot is off-axis with respect to an axis of the row cleaner. The off-axis pivot provides an engagement position that closely couples to a corresponding opener disk and a lifted position that clears supporting structures.