Active Return Tube Rotation for Even Grain Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing agricultural harvesters face challenges in efficiently controlling the distribution of grain discharge from return tubes, leading to uneven distribution and potential grain loss during the harvesting process.
Innovation Solution
The implementation of an active return tube that can rotate to adjust the size and alignment of openings, controlled by a controller to optimize grain discharge and distribution, using a gear mechanism and sensors for real-time adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed return tube with static openings is used, then the structure is simple and reliable, but the grain discharge distribution is uneven and cannot be adjusted
Solution Approach 1:
The return tube is designed with rotatable openings that can change their orientation dynamically. The openings are configured to rotate about a longitudinal axis, allowing the discharge direction to be adjusted according to grain flow requirements. This dynamic adjustment capability resolves the contradiction by providing operational flexibility without requiring a completely complex reconfigurable structure.
Solution Approach 2:
The system changes the angular parameter of the openings by rotating them to different orientations. This parameter change allows the same physical structure to achieve different discharge patterns. By controlling the rotation angle of the openings, the system can optimize grain discharge distribution for different harvesting conditions without changing the basic tube structure.
2Productivity
If the return tube openings are made larger to improve grain discharge, then grain flow is enhanced, but grain loss increases due to uneven distribution
Solution Approach 1:
The openings are designed to rotate and adjust their orientation dynamically during operation. This dynamic capability allows the system to optimize the discharge pattern in real-time, ensuring that grain flows evenly through the openings without spilling. The rotation mechanism enables the openings to adapt to varying grain flow rates and directions, maintaining efficient discharge while minimizing loss.
Solution Approach 2:
The system incorporates sensors that detect grain flow conditions and provide feedback to the control mechanism. This feedback loop allows the openings to adjust their orientation automatically in response to changing grain flow patterns, ensuring optimal discharge distribution. The feedback mechanism prevents grain loss by continuously adapting the opening angles to match actual harvesting conditions.
3Adaptability or versatility
If the return tube structure is made more complex to enable rotation, then grain discharge control is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The return tube incorporates rotatable openings that can change orientation dynamically. This dynamic feature provides adaptability for different grain discharge requirements while maintaining a relatively simple overall structure. The rotation mechanism is integrated into the tube design, allowing adjustment without requiring a completely complex reconfigurable system.
Solution Approach 2:
The system achieves versatility by changing the angular parameter of the openings through rotation. This parameter change approach allows the same physical structure to serve multiple functions and adapt to different harvesting conditions. The simplicity of the rotation mechanism compared to full reconfiguration systems reduces manufacturing complexity while maintaining high adaptability.
Data Source
AI summary
An active return tube includes a hollow body defining a longitudinal axis, the hollow body including a first opening formed in the hollow body, the first opening defining a first side and a second side opposite the first side, the second side extending along the hollow body at an angle oblique to the longitudinal axis.