Mower Guiding Element Recesses for Uniform Cut Material Distribution
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Solution Overview
Problem
Existing mowers with central and lateral mowing devices often create irregular accumulations of cut material, which is undesirable during mowing or shredding of crop residues, as they are not intended to be gathered and can obstruct the replanting process.
Innovation Solution
A mower design featuring guiding elements with recesses in the circular path sections, comprising a first section between the mowing direction and rotation axis and a second section between the side and rotation axis, allowing for optimal control of cut material deposition, distribution, and deflection to achieve a regular distribution of cut material over the mown area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guiding plates are arranged to surround the circular path completely, then cut material is retained and guided away effectively, but irregular accumulations are created and regular distribution is obstructed
Solution Approach 1:
The guiding plate is divided into multiple sections (first guiding section, second guiding section, third guiding section) that independently control different regions of cut material ejection. Each section can be optimized for its specific function: the first section controls front region ejection, the second section controls lateral ejection, and the third section controls rear region ejection, enabling precise control over material distribution while preventing accumulation.
Solution Approach 2:
Different sections of the guiding plate have different configurations adapted to their specific locations and functions. The first guiding section has a specific geometry for controlling front ejection, the second guiding section for lateral ejection, and the third guiding section for rear ejection. This local optimization ensures that each region distributes material appropriately for its location, achieving overall uniform distribution.
2Manufacturing precision
If guiding plates are arranged partially along the circular path, then regular distribution is achieved, but cut material control and deposition optimization is insufficient
Solution Approach 1:
The guiding plate is segmented into multiple functional sections that collectively provide comprehensive control over cut material ejection in all directions. This segmentation allows each section to be optimized for its specific ejection control function while working together to achieve both uniform distribution and precise material control.
Solution Approach 2:
The guiding plate extends in multiple radial dimensions from the rotation axis, with different sections positioned at different radial distances and angles. This multi-dimensional arrangement allows the guiding plate to control material ejection in front, lateral, and rear directions simultaneously, providing comprehensive control while maintaining uniform distribution.
3Ease of operation
If the guiding element is positioned to maximize cut material retention, then deposition control is optimized, but the mown area coverage is reduced
Solution Approach 1:
The guiding plate is divided into multiple sections positioned at different radial distances from the rotation axis. The first guiding section is positioned at a first radial distance for controlling front ejection, the second guiding section at a second radial distance for lateral ejection, and the third guiding section at a third radial distance for rear ejection. This segmentation allows the guiding element to control deposition in different regions without blocking the entire mown area, optimizing both deposition control and area coverage.
Solution Approach 2:
Each section of the guiding plate is positioned and configured to control material ejection in its specific local region. The first guiding section controls front region ejection, the second guiding section controls lateral ejection, and the third guiding section controls rear region ejection. This localized control allows optimized deposition management in each region while maintaining overall mown area coverage.
Data Source
AI summary
A mower has one central and at least one laterally arranged mowing device. The mowing devices each have a mower structure having mowing knives that are drivable in rotation underneath the mower structure about a vertical rotation axis. The ends of the mowing knives describe a circular path, and a guiding element is arranged on at least one laterally arranged mowing device underneath the mower structure, the guiding element at least partially surrounding the circular path and extending downwardly from the mower structure such that cut material cut by a mowing knife is retained or guided away by the guiding element. In order to make the distribution of the mown material more regular during mowing or to avoid accumulations of mown material, the guiding element is arranged in a circular path section that is located at the front in the mowing direction and at least one recess is formed in the guiding element, the recess having a first section which is located between the central mowing device and a plane that extends in the mowing direction and in the direction of the rotation axis, and comprising a second section which is located between the same plane and one side of the mower.