Furrow Closing Wheel Equalizer for Uniform Soil Compaction
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Solution Overview
Problem
Existing furrow closing mechanisms on agricultural planters often result in unequal force distribution between closing wheels, leading to uneven sidewall compaction and inconsistent furrow closure due to varying planting depths and ground conditions.
Innovation Solution
A furrow closing apparatus featuring an equalizer bracket that pivots to ensure both closing wheels apply a substantially equal force by adjusting their positions and using a lock pin mechanism to stabilize the bracket, allowing it to pivot and distribute force evenly across the furrow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If closing wheels are positioned asymmetrically to accommodate varying planting depths, then the planter can operate at multiple depths, but unequal force is exerted on the closing wheels causing non-uniform sidewall compaction
Solution Approach 1:
The equalizer bracket is designed to pivot dynamically as the closing wheels traverse uneven ground, allowing the system to adapt to varying ground conditions and maintain equal force distribution. The pivot mechanism enables the bracket to rotate about a pivot axle, automatically adjusting the position of closing wheels relative to each other to ensure uniform force application regardless of asymmetric positioning or ground irregularities.
2Manufacturing precision
If the equalizer bracket is made pivotable to equalize force distribution, then uniform sidewall compaction is achieved, but the device complexity increases due to additional pivot mechanisms
Solution Approach 1:
The equalizer bracket performs self-adjustment through its pivot mechanism, automatically equalizing force distribution without requiring external control systems, sensors, or active adjustment mechanisms. The bracket pivots freely about the pivot axle in response to ground conditions and wheel positioning, inherently maintaining equal force application on both closing wheels through passive mechanical balance.
Solution Approach 2:
The pivot axle serves as an intermediary element that mediates between the asymmetric positioning of closing wheels and the requirement for equal force distribution. The pivot axle allows the equalizer bracket to rotate and adjust, transferring the asymmetric inputs into symmetric force application through the pivot mechanism, thereby equalizing the force exerted on both wheels.
3Adaptability or versatility
If closing wheels are positioned to handle uneven ground conditions, then the planter can traverse varied terrain, but one wheel may touch the ground while the other does not, causing unequal force application
Solution Approach 1:
The equalizer bracket pivots dynamically in response to ground conditions, allowing the closing wheels to adjust their relative positions automatically. When one wheel encounters uneven terrain, the pivot mechanism enables the bracket to rotate, redistributing the force so that both wheels maintain equal contact force with the ground, thereby ensuring uniform furrow closure despite varying ground conditions.
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 solution achieves consistent and uniform furrow closure by equalizing the force applied by the closing wheels, reducing sidewall compaction and ensuring proper furrow sealing across different planting depths and ground conditions.
Implementation Method 1
an equalizer bracket pivotably connected to the pivot axle. The equalizer bracket receives the first closing wheel axle in a position aft of the pivot axle and receives the second closing wheel axle in a position forward of the pivot axle such that the equalizer bracket pivots as the closing wheels traverse uneven ground
Implementation Method 2
The lock pin passes through aligned openings in the first and second sides of the frame and also passes through the pin openings in the first and second sidewalls of the equalizer bracket. The lock pin is configured to lock the equalizer bracket by moving the sleeve such that the sleeve is positioned in the larger center hole portion in at least one of the first and second sidewalls.
Data Source
AI summary
A furrow closing apparatus is used with a planter that opens a furrow and deposits seeds as the planter moves in a forward direction over the ground. The furrow closing apparatus includes a frame attached to the planter and first and second closing wheels rotatably mounted on respective first and second closing wheel axles. A pivot axle extends from the frame generally transverse to the direction of travel of the planter and an equalizer bracket pivotably connected to the pivot axle. The equalizer bracket receives the first closing wheel axle in a position aft of the pivot axle and receives the second closing wheel axle in a position forward of the pivot axle such that the equalizer bracket pivots as the closing wheels traverse uneven ground to cause the first closing wheel and the second closing wheel to apply a substantially equal force in closing the furrow.