Adjustable Furrow Closing Assembly for Seed Placement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing furrow closing devices lack flexibility in adjusting wheel angles and uniform downforce application, which affects planting speed, seed depth, tillage practices, and soil conditions, leading to inconsistent seed placement and soil contact.
Innovation Solution
An adjustable furrow closing assembly with a housing that allows attachment of furrow closing wheels, featuring a repositionable downforce control lever for multiple adjustment positions and an angle adjustment knob for angular control, enabling quick changes in wheel angles and downforce calibration for uniformity across multiple units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed wheel angle and downforce are used in existing furrow closing devices, then the structure is simple, but the adaptability to different planting conditions is poor
Solution Approach 1:
The patent applies dynamics by making the wheel angle and downforce adjustable rather than fixed. The wheel angle adjustment mechanism allows the closing wheels to be positioned at different angles relative to the furrow, and the downforce is made adjustable through spring pressure modifications. This enables the device to adapt to various planting conditions, soil types, and seed depths while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent implements parameter changes by allowing modification of key operational parameters: wheel angle (through adjustable positioning mechanisms) and downforce (through adjustable spring pressure). These parameter changes enable the same device to perform optimally under different planting conditions without requiring complete structural redesign, thus improving adaptability while controlling complexity.
2Adaptability or versatility
If manual adjustment of wheel angle and downforce is implemented, then the adaptability improves, but the operation time and complexity increase
Solution Approach 1:
The patent applies preliminary action by providing pre-configured adjustment mechanisms that allow quick modification of wheel angle and downforce. The adjustable carriers and spring pressure mechanisms are designed to be easily repositioned between planting operations or even during operation, reducing the time penalty associated with adaptability adjustments.
3Manufacturing precision
If uniform downforce application is achieved through adjustment mechanisms, then the seed placement consistency improves, but the device complexity increases
Solution Approach 1:
The patent applies local quality by focusing adjustment capabilities specifically on the closing wheels where uniform downforce is critical for seed placement consistency. Rather than making the entire device complex, the adjustment mechanisms (adjustable carriers, spring pressure modifications) are localized to the wheel assembly area, achieving improved seed placement while controlling overall device complexity.
Data Source
AI summary
An adjustable furrow closing assembly that is used to close a seed furrow formed in the soil during a planting operation. The assembly includes a housing that is pivotally coupled to a planting unit. The housing includes an adjustable carrier that pivots within the housing. The adjustable carrier includes first and second closing wheels that are adapted to engage with the soil to close the seed furrow. The assembly also includes a downforce control lever that extends into the housing and is coupled to the adjustable carrier. The housing includes a gate member that including a plurality of slots. The downforce control lever is configured to be moved from one slot to a next slot of the gate to either increase or decrease downforce that is applied to the closing wheels. The slots formed in the gate to allow the gate position to be adjusted with respect to the housing to calibrate downforce on the closing wheels. The furrow closing assembly also includes an adjustment rod that is coupled to the adjustable carrier such that rotation of adjustment rod in a first direction causes movement of the adjustable carrier in a first direction to increase the angle of the closing wheels and rotation of the adjustment rod in a second direction causes movement of the adjustable carrier in a second direction to decrease the angle of the closing wheels.