Gauge Wheel Hydraulic Control for Contour-Following Harvest Headers
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Solution Overview
Problem
Existing agricultural systems face difficulties in efficiently adjusting and maintaining the position of gauge wheels, requiring manual intervention and reducing operational efficiency during harvesting.
Innovation Solution
A hydraulic circuit with accumulators and valves is used to control gauge wheel position, allowing for automatic adjustment and oscillation to follow field contours, while maintaining stability during harvesting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual adjustment of gauge wheels is used, then operational simplicity is maintained, but operational efficiency decreases and position maintenance becomes difficult
Solution Approach 1:
The gauge wheel adjustment system uses self-service through the accumulator that automatically responds to terrain changes. The system monitors its own state and adjusts gauge wheel position autonomously based on hydraulic pressure changes caused by terrain variations, eliminating the need for manual intervention while maintaining operational efficiency.
Solution Approach 2:
The patent replaces manual mechanical adjustment with a hydraulic system. The hydraulic cylinder and accumulator combination substitutes for manual operations, using fluid pressure to automatically adjust and maintain gauge wheel position according to terrain conditions, thereby improving productivity without excessive complexity.
2Adaptability or versatility
If fixed gauge wheel position is maintained, then system simplicity is preserved, but ability to follow field contours is reduced
Solution Approach 1:
The system transitions from a static fixed position to a dynamic adjustable position. The gauge wheels are equipped with hydraulic cylinders connected to accumulators that enable continuous position adjustment based on terrain variations, allowing the system to adapt to field contours while maintaining manageable complexity through passive hydraulic response.
Solution Approach 2:
The system changes the position parameter of the gauge wheels dynamically. By utilizing hydraulic pressure changes from the accumulator in response to terrain variations, the gauge wheel position is automatically adjusted to follow field contours, enhancing adaptability without requiring complex active control systems.
3Extent of automation
If hydraulic adjustment system is implemented, then automatic adjustment capability is improved, but system complexity increases
Solution Approach 1:
The accumulator serves as beforehand cushioning by pre-storing hydraulic energy. This allows the system to respond automatically to terrain changes without requiring complex real-time control mechanisms. The pre-charged accumulator provides immediate hydraulic pressure to adjust gauge wheel position, achieving high automation with relatively simple system architecture.
Solution Approach 2:
The hydraulic accumulator acts as an intermediary between the hydraulic cylinder and the gauge wheel adjustment mechanism. It mediates the transfer of hydraulic energy, smoothing out pressure fluctuations and providing automatic adjustment capability while simplifying the overall control system architecture, thereby achieving good automation without excessive complexity.
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
Enhances operational efficiency by enabling automatic gauge wheel adjustment and stabilization, improving navigation and crop yield through precise cutting height maintenance.
Implementation Method 1
a hydraulic circuit fluidly coupled to the hydraulic cylinder, in which the hydraulic circuit is configured to control a fluid flow into and out of the hydraulic cylinder to adjust the gauge wheel relative to the frame
Implementation Method 2
the hydraulic circuit includes an accumulator configured to enable an amount of fluid in the hydraulic cylinder to change during a harvesting operation of the agricultural system such that the gauge wheel may oscillate from a set position during the harvesting operation
Data Source
AI summary
An agricultural system includes a header comprising a gauge wheel and a frame, in which the gauge wheel and the frame are coupled to a hydraulic cylinder that is configured to adjust the gauge wheel relative to the frame. The agricultural system also includes a hydraulic circuit fluidly coupled to the hydraulic cylinder, in which the hydraulic circuit is configured to control a fluid flow into and out of the hydraulic cylinder to adjust the gauge wheel relative to the frame, and the hydraulic circuit includes an accumulator configured to enable an amount of fluid in the hydraulic cylinder to change during a harvesting operation of the agricultural system such that the gauge wheel may oscillate from a set position during the harvesting operation.