Adjustable Relief Element for Multi-Section Header Frame
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Solution Overview
Problem
Existing multi-section headers with articulation connections for adapting to soil contours during harvesting lack flexibility in spring behavior adjustment, as they can only operate in either free spring action or rigid configuration, limiting adaptation to varying ground conditions.
Innovation Solution
The relief element incorporates a movable spring connected to a rigid spatial body with a stop element having multiple pivot positions, allowing adjustable spring movement limitations to accommodate different operational needs, such as compressing or stretching in specific directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the relief element uses free spring action to allow lateral frame sections to adapt to ground contours, then the adaptation flexibility is improved, but the structural stability and damage prevention capability deteriorates
Solution Approach 1:
The patent applies parameter changes by making the spring travel adjustable through the stop element. The stop element can be positioned at different locations along the slotted hole to change the travel distance of the spring, thereby adjusting the balance between adaptation flexibility and structural protection. This allows the system to adapt to varying ground conditions while preventing excessive movement that could cause damage.
Solution Approach 2:
The patent implements dynamics by introducing a stop element that can be selectively positioned to change the spring's movement constraints. The system transitions from a fixed spring travel configuration to a dynamic, adjustable configuration where the stop element can be repositioned along the slotted hole to match different operational requirements and ground conditions.
2Reliability
If the relief element is designed as a rigid lock to provide structural stability, then the damage prevention capability is improved, but the adaptation flexibility to ground contours deteriorates
Solution Approach 1:
The patent resolves this contradiction by allowing parameter changes in the spring travel distance. When structural stability is prioritized, the stop element can be positioned to limit spring travel, effectively creating a more rigid configuration. When adaptation is needed, the stop element can be repositioned to allow greater spring travel, restoring flexibility while maintaining controlled stability.
Solution Approach 2:
The system transitions from a static rigid lock design to a dynamic configuration where the stop element can be adjusted to provide the appropriate level of rigidity or flexibility based on operational needs. This dynamic adjustability allows the system to switch between stability-oriented and adaptability-oriented modes.
3Reliability
If a selectively insertable rigid lock is used to bypass the spring, then the structural stability is improved, but the device complexity increases
Solution Approach 1:
The patent merges the function of the rigid lock into the stop element itself, which is already part of the spring mechanism. Instead of having a separate insertable lock component, the stop element serves both as a travel limiter for the spring and as the rigid constraint when positioned at certain locations. This integration reduces the number of separate components and simplifies the overall structure.
Solution Approach 2:
The stop element is designed to serve multiple functions: it limits spring travel in normal operation, provides rigid structural support when positioned at specific locations, and can be repositioned to adjust the system's behavior. This multi-functionality eliminates the need for a separate rigid lock component, reducing device complexity while maintaining structural stability when needed.
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
This solution provides enhanced flexibility in adapting to ground contours by allowing targeted adjustment of spring behavior, reducing the risk of damage and improving operational efficiency across various harvesting conditions.
Implementation Method 1
By designing the relief element as a spring, the lateral frame sections can swing up or down with their free ends against the spring force when a ground contour changes during harvesting.
Data Source
AI summary
A header has frame sections that are joined for articulation with each other. The frame sections each form a partial working width of the header. The frame sections include outer lateral frame sections and a central frame section. A relief element is connected to the central frame section and an outer lateral frame section adjacent to the central frame section. The relief element is adjustable between a springy setting and a locked setting. The relief element has a spring movable in a loading direction and also a spatial body rigid in the loading direction. The spring is connected to the first outer lateral frame section by a bolt guided in a slotted hole of the rigid spatial body. A pivotable stop element with stops is pivotable into a plurality of pivot positions. A spring travel of the spring is adjustable by the stops of the stop element.