Cutting Device Radial Conveying Crop Accumulation
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Solution Overview
Problem
Existing cutting devices for agricultural crop plants suffer from crop accumulation and loss at higher speeds, due to their high cross-sectional design which increases weight and wear, and leads to potential deformation and interference between devices.
Innovation Solution
The cutting device incorporates radial conveying elements at the top side, oriented tangentially and radially relative to the cutting rotation axis, to efficiently convey cut crop plants towards the cutting axis, preventing accumulation and loss, while reducing the cross-sectional area for lighter weight and increased stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the cutting device has a high cross section to provide sufficient resistance moment, then deformation is prevented, but weight increases causing higher wear and fuel consumption
Solution Approach 1:
The patent introduces a radial component to the conveying direction, changing it from a purely tangential path to a three-dimensional path with both tangential and radial components. This dimensional change in the conveying mechanism allows for more efficient crop removal with less material, reducing the cross-sectional area and weight of the cutting device while maintaining sufficient resistance moment through optimized structural distribution.
2Productivity
If the cutting device operates at greater movement speeds, then productivity increases, but cut crop plants accumulate on the top side causing losses
Solution Approach 1:
The patent implements a dynamic conveying direction that adapts to the operating conditions. The conveying direction has both tangential and radial components that work together to prevent crop accumulation at higher speeds. This dynamic approach allows the system to maintain effective crop removal across a range of harvesting speeds, preventing loss while maintaining productivity.
Solution Approach 2:
The radial conveying element is positioned and oriented to counteract the accumulation tendency before it becomes problematic. By introducing a radial component to the conveying direction, the system preemptively directs cut crops away from the top side accumulation zone, preventing the harmful effect of crop buildup before it occurs during high-speed operation.
3Stability of the object's composition
If the cutting device has a high cross section for structural stability, then resistance moment is sufficient, but the device complexity and material usage increase
Solution Approach 1:
The patent applies local quality optimization by concentrating structural strength where most needed for resistance moment while reducing material in less critical areas. The conveying elements and structural components are strategically positioned and dimensioned to provide sufficient stability without requiring a uniformly high cross-section throughout the entire device, thereby reducing overall complexity and material usage.
Data Source
AI summary
A cutting device is embodied for cutting agricultural crop plants by a rotational movement about a cutting rotation axis and has at least one knife element that, in a plan view of a top side of the cutting device, is embodied open in circulating direction. At least one radial conveying element, arranged at least at the top side and stationary relative to the knife element, is provided that at least in sections thereof is embodied for conveying the crop plants in a conveying direction that, relative to the cutting rotation axis, is oriented partly tangentially and partly radially relative to the cutting rotation axis. Moreover, a harvesting attachment with a plurality of such cutting devices and a field chopper with such a harvesting attachment is provided.