Float Adjustment for Agricultural Harvesting Head
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Agricultural harvesting heads face challenges in accurately following ground contours and maintaining optimal cutting height due to their length and complexity, requiring sophisticated adjustment mechanisms to ensure efficient crop harvesting.
Innovation Solution
A single-input float adjustment system that includes a center frame pivotally coupled to an adapter frame with hydraulic actuators and sensors, allowing for precise control of the cutting height and ground force distribution through a controller and user interface, enabling adjustments to maintain constant ground force and optimal cutting performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple independent adjustment mechanisms are used for each actuator, then precise control of each section is improved, but device complexity and adjustment time increase
Solution Approach 1:
The patent combines multiple independent adjustment mechanisms into a single integrated float adjustment mechanism. The single input device simultaneously adjusts the float positions of multiple hydraulic actuators (center actuator and wing actuators) through a unified control system, reducing the number of independent adjustment devices while maintaining precise control capability for each section of the harvesting head.
Solution Approach 2:
The single float adjustment input device serves multiple functions by simultaneously controlling the float positions of multiple actuators. This universal input mechanism can adjust the cutting height and ground force distribution for the center section and wing sections through a single operation, making the adjustment system more efficient and easier to operate.
2Device complexity
If manual adjustment of cutting height is used, then device complexity is reduced, but adjustment precision and response time deteriorate
Solution Approach 1:
The system incorporates sensors that detect the position of the harvesting head sections and provide feedback to the control system. The controller uses this feedback information to automatically adjust the hydraulic actuators, maintaining precise cutting height control without requiring complex manual adjustment mechanisms. This closed-loop control system achieves high precision while keeping the physical adjustment devices relatively simple.
Solution Approach 2:
The patent replaces complex manual mechanical adjustment systems with an automated hydraulic control system. Instead of using multiple manual adjustment mechanisms, the system uses a single float input device that controls hydraulic actuators through fluid pressure, providing more precise and responsive adjustment with simpler mechanical components.
3Productivity
If the harvesting head is made longer to increase productivity, then crop harvesting efficiency is improved, but the ability to follow ground contours deteriorates
Solution Approach 1:
The harvesting head is divided into multiple independent sections (center section and wing sections), each with its own hydraulic actuator that can adjust float position independently. This segmentation allows the long harvesting head to follow ground contours by adjusting each section's height independently while maintaining overall productivity through the extended cutting width.
Solution Approach 2:
The system makes the harvesting head dynamically adjustable by incorporating hydraulic actuators with float control for each section. The float adjustment mechanism allows each section to dynamically adapt to ground contour changes during operation, enabling the long harvesting head to maintain both productivity and ground-following capability through real-time positional adjustments.
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 system ensures consistent cutting height and ground force distribution, preventing the harvesting head from digging into the ground or lifting off, thereby maintaining efficient crop cutting and reducing mechanical stress on the equipment.
Implementation Method 1
the center actuator is a hydraulic actuator fluidly coupled to an accumulator, wherein at least one of the performance characteristics altered by the controller is the hydraulic pressure provided to the hydraulic actuator
Data Source
AI summary
A system for a header assembly that has a center frame configured to pivot relative to an adapter frame about at least one center axis, a center actuator coupled to the center frame to selectively provide a biasing force thereto, a first arm assembly configured to pivot relative to the center frame about at least a first arm axis, a first actuator coupled to the first arm assembly to selectively provide a biasing force thereto, a controller in communication with the center actuator and the first actuator to selectively alter performance characteristics of the center actuator and the first actuator, and a user interface in communication with the controller and having at least a first option and a second option. Wherein, the controller adjusts the performance characteristics of both the center actuator and the first actuator when the user interface is transitioned between the first option and the second option.