Load Sensor Bracket for Disk Opener Down Pressure Control
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Solution Overview
Problem
Agricultural planters often apply excessive down pressure due to uncertainty in soil conditions, leading to soil compaction and premature wear of gauge wheel components, while existing load sensor systems are complex and require manual replacement if damaged.
Innovation Solution
A simplified load sensor system integrated into a load sensor bracket that can be easily installed on the depth setting arm, using a strain gauge to adjust down pressure in real-time based on soil conditions, minimizing excessive force on the gauge wheel and allowing for quick retrofitting without removing the entire arm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If operators set down pressure to maximal setting to ensure adequate penetration, then disk penetration depth is maintained, but soil compaction occurs and gauge wheel components wear prematurely
Solution Approach 1:
The load sensor provides real-time feedback on the force applied to the gauge wheel, enabling the control system to adjust hydraulic cylinder pressure dynamically. This closed-loop feedback mechanism ensures that down pressure is optimized for actual soil conditions rather than operating at maximal settings continuously, thereby maintaining furrow depth consistency while preventing soil compaction and component wear.
Solution Approach 2:
The system dynamically changes the down pressure parameter based on real-time load sensor data. By adjusting the hydraulic pressure parameter in response to measured strain conditions, the system adapts to varying soil conditions without requiring maximal pressure settings, thus achieving consistent penetration while reducing harmful effects of excessive force.
2Measurement precision
If load sensor is integrated into the depth setting arm, then real-time strain measurement is achieved, but the system complexity increases and manual replacement is required if damaged
Solution Approach 1:
The load sensor is segmented from the main depth setting arm assembly and mounted on a separate bracket that attaches to the arm. This segmentation allows the sensor to be installed and replaced independently without removing or damaging the depth setting arm, thereby maintaining measurement precision while reducing system complexity and facilitating easier maintenance.
Solution Approach 2:
A bracket serves as an intermediary component between the depth setting arm and the load sensor. This intermediary structure simplifies the overall system by providing a dedicated mounting platform for the sensor, enabling easy installation and replacement while maintaining the precision strain measurement capability.
3Extent of automation
If existing load sensor systems are used, then down pressure adjustment is achieved, but the installation process requires removing the entire depth setting arm
Solution Approach 1:
By segmenting the load sensor into a separate, independently mountable component on a bracket, the system maintains automatic down pressure control functionality while dramatically improving ease of repair. The sensor can now be accessed, installed, and replaced without the complex procedure of removing the entire depth setting arm assembly.
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
Maintains consistent furrow depth with reduced strain on gauge wheel components, preventing soil compaction and extending equipment lifespan while simplifying sensor installation and maintenance.
Implementation Method 1
The load sensor, which may be a strain gauge for example, senses the strain placed on the gauge wheel assembly during a change in soil conditions.
Data Source
AI summary
A load sensing bracket for a disk opener assembly of an agricultural implement. The load sensing bracket includes a body having a cantilevered arm, the body is configured to engage with and secure to a portion of a depth setting arm of a disc opening assembly. The cantilevered arm has an upper end with an extending projection that is receivable in any one of plurality of notches of a fan shaped member thereby setting a position of the depth setting arm relative to the fan shaped member which sets a position of the gauge wheel relative to the disk. A sensor is disposed on the cantilevered arm generating a signal relating to strain in the cantilevered arm which corresponds to a down pressure on the gauge wheel.