Planter Gauge Wheel Actuation for On-The-Go Seed Depth Control
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Solution Overview
Problem
Current agricultural planting systems require cumbersome and time-consuming manual adjustments for setting seed depth, leading to sub-optimal planting operations due to infrequent changes in environmental or soil characteristics, resulting in potential yield loss.
Innovation Solution
A row unit with a support frame, trench opener, gauge wheel, and a planting depth actuator assembly that includes a linkage, screw member, and motor, allowing for automated adjustment of seed depth through a mechanical advantage system with a gear train and smart motor for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual adjustment mechanism is used to set seed depth, then device complexity is reduced, but ease of operation deteriorates and time consumption increases
Solution Approach 1:
The patent replaces the manual mechanical adjustment mechanism with an automated motor-driven screw mechanism. The motor automatically adjusts the gauge wheel position relative to the disc opener, eliminating the need for manual operation while maintaining mechanical precision through the screw thread mechanism.
Solution Approach 2:
The system enables self-adjustment of seed depth through the motor-driven mechanism. The gauge wheel arm automatically positions itself relative to the disc opener based on the screw member's axial movement, allowing the system to adjust without requiring operator intervention.
2Device complexity
If manual adjustment mechanism is used to set seed depth, then device complexity is reduced, but productivity deteriorates
Solution Approach 1:
The motor-driven automated adjustment system replaces manual mechanical adjustment, enabling continuous planting operations without stopping the planter. This significantly improves productivity by eliminating the time required for manual depth adjustments during planting operations.
Solution Approach 2:
The motor-driven mechanism allows seed depth adjustments to be made in advance or during operation without interrupting the planting process. The gauge wheel arm can be repositioned before reaching new field conditions, maintaining optimal planting depth throughout the operation.
3Device complexity
If fixed downforce assembly is used, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The patent introduces dynamic adjustability to the previously fixed downforce assembly. The motor-driven screw mechanism enables the gauge wheel arm to dynamically reposition relative to the disc opener, allowing the system to adapt to varying soil conditions, moisture levels, and crop requirements during planting operations.
Solution Approach 2:
The system enables changes in the seed depth parameter through motor-driven axial movement of the screw member. This allows operators to adjust planting depth based on real-time field conditions, soil characteristics, and crop-specific requirements, significantly improving adaptability.
4Adaptability or versatility
If frequent manual adjustments are made to optimize seed depth, then adaptability improves, but time consumption increases
Solution Approach 1:
The automated motor-driven mechanism replaces manual adjustment operations, enabling frequent seed depth optimizations without the time penalty of manual intervention. The motor can quickly reposition the gauge wheel arm to achieve optimal planting depth for different field conditions.
Solution Approach 2:
The motor-driven system maintains continuous planting operations while enabling frequent depth adjustments. Unlike manual adjustment that requires stopping the planter, the automated mechanism allows depth optimization to occur during continuous operation, eliminating time loss.
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
Enables quick and precise adjustment of seed depth on-the-go, optimizing planting depth settings based on real-time soil conditions, enhancing yield potential by maintaining consistent seed placement.
Implementation Method 1
The screw member is operably coupled to the linkage, has a threaded portion, a longitudinal axis, and is configured to move axially along the longitudinal axis to drive the linkage without rotating about the longitudinal axis
Implementation Method 2
The motor is operably coupled to the screw member and energization of the motor causes the screw member to move axially
Implementation Method 3
a plurality of gears disposed within the actuator body and operably interposed between the motor and the screw member to increase mechanical advantage of the motor
Data Source
AI summary
An agricultural planter row unit has a trench opener fixed to a support frame and a gauge wheel supported by a gauge wheel arm to control planting depth. An electric actuator drives movement of a linkage with a mechanical stop that bears against the gauge wheel support arm to position the gauge wheel to obtain the desired planting depth. A seed depth control system receives an operator input, from an operator compartment of a towing vehicle, and automatically controls actuation of the seed depth actuator.