Hay-Making Machine Merger Unit Coupling Mechanism
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Solution Overview
Problem
Existing haymaking machines face transfer issues when switching between side and central swath configurations due to individually suspended merger units, leading to potential transfer jams or loss of material, especially when the units are not perfectly aligned or at the same height.
Innovation Solution
A joint with adjustable coupling halves that can be engaged and disengaged between merger units, allowing for easier alignment and connection, even when units are not perfectly aligned, and featuring a motor-actuated mechanism for seamless switching between swath configurations without manual effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If merger units are individually suspended to enable ground adaptation, then ground adaptation capability is improved, but transfer reliability deteriorates due to height misalignment between units
Solution Approach 1:
A height adjustment mechanism is introduced as an intermediary device between the merger units and the pendulum suspension. This mechanism includes adjustable support elements that can be individually positioned to compensate for height differences caused by ground unevenness, thereby maintaining reliable crop transfer while preserving ground adaptation capability
Solution Approach 2:
The support elements are designed to be adjustable rather than fixed, allowing the height of each merger unit to be dynamically adapted to the ground profile. This dynamic adjustment ensures that the transfer interface between units remains at a consistent height, preventing transfer jams while maintaining the ability to follow ground contours
2Adaptability or versatility
If merger units are moved together for side swath deposition, then side swath capability is improved, but transfer interface alignment becomes critical and complex
Solution Approach 1:
The height adjustment mechanism serves as a mediator that simplifies the transfer interface alignment when merger units are moved together for side swath deposition. By independently adjusting the height of each unit, the alignment complexity is reduced to a simple mechanical adjustment rather than requiring complex synchronization mechanisms
Solution Approach 2:
The height adjustment mechanism is segmented into individual adjustable elements for each merger unit, allowing independent adjustment of each unit's height. This segmentation enables simple alignment when units are moved together while maintaining the ability to handle height differences, thereby reducing overall system complexity
3Strength
If coupling halves are rigidly mounted on merger units, then connection strength is improved, but ease of operation deteriorates due to alignment requirements
Solution Approach 1:
At least one coupling half is made adjustable relative to its merger unit, transforming the rigid connection into a dynamically adjustable one. This allows the coupling to be easily engaged and disengaged by simply adjusting the position of the coupling half, eliminating the need for precise alignment while maintaining strong connection when engaged
4Productivity
If merger units are divided into multiple units for larger working width, then productivity is improved, but transfer interface alignment precision becomes more difficult to maintain
Solution Approach 1:
The height adjustment mechanism is divided into separate adjustable elements for each merger unit, allowing independent precision adjustment of each unit's height at the transfer interface. This segmentation enables multiple units to be precisely aligned without requiring complex factory pre-alignment, facilitating easier maintenance of alignment precision as the number of units increases
Data Source
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AI summary
The present invention relates to a haymaking machine (1) in the form of a merger for swathing and/or transversely moving harvested material, with at least two merger units (3), each comprising a collection conveyor (4) for collecting the harvested material from the ground and a transverse conveyor (5) for conveying the collected harvested material transversely to the direction of travel (6), wherein the merger units (3) are each suspended by pivoting about a horizontal pendulum axis (7) pointing in the direction of travel (6) for ground adaptation, and wherein at least one of the merger units (3) is adjustableally suspended for selectively depositing a side swath or a center swath transversely to the direction of travel (6), wherein at least one coupling joint (15) with two coupling parts that can be engaged and disengaged is provided between the merger units (3), of which at least one coupling part (17) is movably mounted on one of the merger units (3) between a coupling position and a disengaging position.