Pivoting Feed Roller Assembly for Controlled Crop Flow
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Solution Overview
Problem
Conventional feed rollers in agricultural harvesters, such as sugarcane harvesters, are rigidly coupled and cannot adjust their position, leading to inconsistent control over the quantity of crop material directed toward the cutter assembly, which can result in overloading and slowing down harvesting operations.
Innovation Solution
The agricultural harvester incorporates a second feed roller that is pivotably coupled to a divider shoe and adjustable via an actuator, allowing controlled adjustment between raised and lowered positions to manage the quantity of crop material directed toward the cutter assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If feed rollers are rigidly coupled and fixed in position, then the structure is simple and reliable, but the quantity of crop material directed toward the cutter assembly cannot be controlled, leading to overloading and reduced productivity
Solution Approach 1:
The patent applies the dynamics principle by making the feed roller position adjustable through a pivot coupling mechanism. The second feed roller is pivotably coupled to the divider shoe, allowing it to move between raised and lowered positions. This dynamic adjustment enables control over the quantity of crop material directed toward the cutter assembly, preventing overloading while maintaining harvesting efficiency.
Solution Approach 2:
The patent implements parameter changes by allowing the feed roller position to be varied. The actuator mechanism enables the feed roller to change its vertical position parameter, thereby controlling the amount of crop material that passes through. This parameter adjustment resolves the contradiction by enabling material quantity control without requiring a completely complex redesign of the feed roller system.
2Adaptability or versatility
If the second feed roller is made pivotably coupled and adjustable, then control over crop material quantity is improved, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the feed roller system into independent adjustable components. The second feed roller is separated from the fixed first feed roller and pivotably coupled to the divider shoe. This segmentation allows independent adjustment of the second feed roller's position, providing adaptability over crop material quantity while keeping the overall structure modular and manageable.
Solution Approach 2:
The patent uses an intermediary approach by introducing a pivot coupling mechanism between the second feed roller and the divider shoe. This intermediary connection allows for smooth, controlled adjustment of the feed roller position without requiring a complete redesign of the entire feed system. The pivot coupling acts as a mediator that enables position control while maintaining structural integrity.
Data Source
AI summary
An agricultural harvester includes a cutter assembly configured to sever crop material. Additionally, the harvester includes a divider shoe configured to direct crop material toward the cutter assembly. Furthermore, the crop divider includes a first feed roller and a second feed roller. The second feed roller extends between first and second ends. The first end of the second feed roller is pivotably coupled to the shoe such that the position of the roller is adjustable relative to the first feed roller to direct the crop material toward the cutter assembly. Moreover, the harvester includes an actuator coupled between the second feed roller and the forward frame of the harvester. The actuator is configured to adjust the position of the second feed roller relative to the first feed roller to control the quantity of crop directed toward the cutter assembly.