Conditioning Roll Gap Mechanism for On-the-Go Mower Adjustment
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Solution Overview
Problem
Manual adjustment of the roll gap between conditioning rolls in agricultural equipment requires operators to stop their operations, making high-frequency adjustments inefficient.
Innovation Solution
A mechanism featuring eccentric assemblies and linkages that allow for the adjustment of the roll gap without stopping operations, using an actuator to rotate the eccentrics and change the distance between the rolls, with a relief mechanism to protect against impacts from foreign materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of the roll gap is used, then the roll gap can be adjusted, but the operator must stop cutting or harvesting operations
Solution Approach 1:
The patent applies dynamics by replacing static manual adjustment with a dynamic automated system. The actuator (hydraulic, pneumatic, or electric) enables the roll gap to be adjusted automatically during operation without requiring the operator to stop the cutting or harvesting process. The system transitions from a fixed manual adjustment state to a dynamically adjustable state that can change parameters while the machine is running.
Solution Approach 2:
The system performs self-service by automatically adjusting the roll gap through the actuator mechanism without requiring operator intervention to physically move components. The actuator autonomously controls the positioning of the roll gap based on operational needs, freeing the operator to continue harvesting or cutting operations without interruption.
2Device complexity
If manual adjustment of the roll gap is used, then the mechanism is simple, but high frequency adjustments are inefficient
Solution Approach 1:
The patent replaces the purely mechanical manual adjustment system with a hybrid system that incorporates actuators (hydraulic, pneumatic, or electric). This substitution transforms the adjustment mechanism from a simple manual operation to an automated system capable of high-frequency adjustments. The actuator-driven mechanism can rapidly change the roll gap multiple times during a single operational cycle, dramatically improving adjustment frequency efficiency.
3Adaptability or versatility
If the roll gap is reduced to increase pressure on crops, then conditioning effectiveness improves, but the risk of impact from foreign materials increases
Solution Approach 1:
The patent applies dynamics by enabling real-time adjustment of the roll gap through the actuator system. This allows the conditioning level to be dynamically optimized for different crop types and conditions while providing the capability to rapidly increase the roll gap when foreign materials are detected, thereby reducing impact risk. The system can transition between different gap settings during operation based on real-time conditions.
Solution Approach 2:
The system utilizes parameter changes by adjusting the roll gap distance as a variable parameter. The actuator mechanism allows the roll gap to be changed from a fixed parameter to a dynamically adjustable one, enabling optimization of conditioning pressure for different crops while providing the ability to rapidly change the parameter to avoid damage from foreign materials like rocks or metal objects.
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
Enables continuous operation during roll gap adjustments, improving efficiency by allowing for quick and frequent changes without interrupting the cutting or harvesting process and protecting the equipment from impacts.
Implementation Method 1
at least one eccentric assembly, and a linkage. The movement of the at least one eccentric assembly causes the first conditioning roll to move via the linkage
Data Source
AI summary
A mower-conditioner includes first and second conditioning rolls, adjustment assembly, and a linkage. The adjustment assembly includes a first member having a first helical surface and a second member having a second helical surface in contact with each other. The linkage is coupled between the at least one adjustment assembly and the first conditioning roll. The rotation of the at least one adjustment assembly about a pivot axis causes the first conditioning roll to move via the linkage, which adjusts the distance between the first and second conditioning rolls.