Trench Closing Assembly with Adjustable Downforce for Seed Contact
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Solution Overview
Problem
Existing agricultural planting technologies struggle to ensure consistent seed-to-soil contact, which is crucial for uniform seed emergence and high yields, as they lack effective mechanisms to adjust and maintain the downforce on closing wheels and gauge wheels based on soil conditions.
Innovation Solution
A trench closing assembly for agricultural planters that includes adjustable closing wheels and press wheels, actuated by a pneumatic or hydraulic actuator, with sensors to monitor and control the downforce, allowing for precise adjustment based on soil conditions to ensure optimal seed-to-soil contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If downforce on closing wheels and press wheel is increased to ensure good seed-to-soil contact, then seed emergence uniformity improves, but soil compaction and difficulty in trench closing increases
Solution Approach 1:
The patent applies dynamics by making the downforce on closing wheels and press wheel adjustable rather than fixed. The system allows real-time modification of forces based on soil conditions, enabling optimization between seed-to-soil contact and soil compaction without being constrained by a static force application mechanism.
Solution Approach 2:
The patent implements parameter changes by varying the downforce parameters on closing wheels and press wheel according to soil conditions. The system modifies force magnitude dynamically, allowing adaptation to different soil types and conditions to achieve good seed-to-soil contact while preventing excessive soil compaction.
2Device complexity
If fixed downforce is applied to closing wheels to simplify the system, then device complexity reduces, but ability to adapt to varying soil conditions deteriorates
Solution Approach 1:
The patent resolves this contradiction by implementing a dynamic force application system where downforce on closing wheels and press wheel can be adjusted based on soil conditions. This dynamic capability provides adaptability to varying soil conditions while maintaining reasonable system complexity through controlled adjustment mechanisms.
Solution Approach 2:
The patent applies parameter changes by modifying the downforce parameters on closing wheels and press wheel according to detected soil conditions. This allows the system to adapt to different soil types and conditions without requiring completely different mechanisms for each scenario.
3Manufacturing precision
If downforce on closing wheels is increased to ensure proper seed depth, then seed emergence uniformity improves, but seed trench closing difficulty increases
Solution Approach 1:
The patent applies dynamics by enabling adjustable downforce on closing wheels and press wheel to achieve proper seed depth while maintaining ease of trench closing. The system dynamically balances the force required for depth precision with the force needed for smooth trench closing operation.
Solution Approach 2:
The patent implements parameter changes by adjusting the downforce parameters on closing wheels and press wheel to optimize both seed depth consistency and trench closing ease. The system modifies force parameters to achieve proper seed placement without creating excessive closing difficulty.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The assembly enhances seed emergence uniformity and yield by ensuring consistent seed-to-soil contact, adapting to varying soil conditions through real-time force distribution and adjustment, thereby improving planting efficiency.
Implementation Method 1
actuated by a pneumatic or hydraulic actuator
Data Source
Figure 1
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AI summary
A trench closing assembly having an actuator for applying a force to the trench closing assembly in which the force is divided between closing wheels and a press wheel disposed rearward of the closing wheels.