Row Unit Depth Adjustment Assembly for Precise Planting Depth
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Solution Overview
Problem
Conventional agricultural planters lack precise control and measurement of planting depth, which can be affected by soil conditions and operator skill, leading to inconsistent seed placement and yield outcomes.
Innovation Solution
An agricultural row unit with a depth adjustment assembly featuring a primary and secondary depth adjustment mechanism, including actuators and actuators in data communication with a depth control system, to accurately set and adjust planting depth based on soil conditions and real-time data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual depth adjustment mechanism with gauge wheel arms and equalizer bar assembly is used, then depth setting capability is provided, but measurement precision and reliability are insufficient due to operator skill dependency and lack of actual depth determination
Solution Approach 1:
The patent employs feedback mechanisms through sensors that detect actual planting depth and provide real-time data to the control system. This closed-loop feedback enables automatic adjustment of the depth control member to maintain precise planting depth, eliminating dependency on operator skill for both setting and verification of depth parameters.
Solution Approach 2:
The patent replaces the manual mechanical depth setting system with an automated electro-hydraulic or electro-mechanical actuation system. The depth control member is actuated by motors or hydraulic cylinders controlled by electronic sensors and controllers, substituting manual mechanical adjustment with automated systems that provide precise measurement and control.
2Manufacturing precision
If conventional planters with maximum depth adjustment only are used, then simple structure is maintained, but manufacturing precision of actual planting depth deteriorates due to soil conditions and insufficient downpressure
Solution Approach 1:
The patent implements dynamic depth control where the depth control member can automatically adjust its position during operation in response to real-time sensor feedback. This dynamic adjustment capability allows the system to compensate for variations in soil conditions and downpressure, maintaining consistent planting depth throughout the field rather than relying on fixed static settings.
Solution Approach 2:
Sensors continuously monitor actual planting depth and provide feedback to the control system, which automatically adjusts the depth control member to maintain the desired depth setting. This closed-loop control ensures consistent manufacturing precision of planting depth despite variations in operational conditions.
3Reliability
If gauge wheel arms pivotally connected to frame with manual adjustment is used, then basic depth control is achieved, but reliability deteriorates because maximum depth setting is not maintained during operation
Solution Approach 1:
Sensors detect actual planting depth and provide real-time feedback to the control system, which automatically adjusts the depth control member to maintain the preset maximum depth setting throughout operation. This ensures reliable maintenance of depth settings despite changes in soil conditions or operational parameters.
Solution Approach 2:
The system performs self-adjustment through automated actuators that modify the depth control member position based on sensor feedback, eliminating the need for continuous manual intervention. The planter automatically corrects depth deviations, maintaining reliable depth setting without operator involvement.
Data Source
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AI summary
An agricultural row unit (10), comprises a row unit frame (14) configured with opening discs (62) to open a furrow (3) having a furrow depth. A depth adjustment assembly (90H:90N)) is configured to modify the furrow depth. The depth adjustment assembly comprises a depth adjustment body (1694;1695;1794;1994)) which is pivotally connected via a pivot (92) to row unit frame (14), and gears (1640;1740;1940) configured for engagement in slots (97) formed within the row unit frame or on a gear rack (1710;1910) disposed on the row unit frame (14). A rotary actuator (1650;1750;1850;1950) is provided and configured to rotatably drive the gears (1640;1740;1940) and modify said furrow depth.