Segmented Inter-Row Mowing Device for Crop Protection
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Solution Overview
Problem
Current agricultural mowing devices are inefficient in cutting weeds between and within crop rows, often damaging crops and failing to effectively prevent weed regrowth.
Innovation Solution
A mowing device with a shaft and two cutting devices, one for inter-row cutting and another for cutting within rows, attached to a tractor, which includes a mounting assembly for attachment to an agricultural vehicle, allowing precise cutting and optional delivery of weed-control substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single cutting device is used for both inter-row and intra-row cutting, then device complexity is reduced, but manufacturing precision and crop damage control deteriorate
Solution Approach 1:
The cutting device is segmented into two distinct cutting units: a first cutting device for inter-row cutting and a second cutting device for intra-row cutting. Each cutting device is independently controlled and positioned, allowing precise cutting in different zones without damaging crops. The first cutting device operates in the inter-row space while the second cutting device operates within the row, with both devices having independent control mechanisms for depth and lateral positioning.
2Productivity
If the cutting device extends laterally to cover both inter-row and intra-row areas, then productivity is improved, but crop damage increases
Solution Approach 1:
Different parts of the cutting system have different functional properties tailored to their specific cutting zones. The first cutting device is configured with blade orientation and positioning optimized for inter-row vegetation, while the second cutting device is configured for intra-row cutting. Each cutting device can be independently adjusted in terms of cutting depth, lateral position, and blade angle to match the specific requirements of its operating zone, thereby maximizing productivity while minimizing crop damage through localized optimization.
3Device complexity
If one cutting device is used for all plant matter, then device complexity is reduced, but reliability of weed control deteriorates
Solution Approach 1:
The cutting system incorporates dynamic control mechanisms that allow real-time adjustment of each cutting device's operation. The first and second cutting devices can be independently controlled in terms of activation, cutting depth, and lateral positioning. This dynamic control enables the system to adapt to varying vegetation conditions in different zones, ensuring reliable weed control by applying the appropriate cutting action in each specific area while maintaining manageable system complexity through centralized control.
Data Source
AI summary
An agricultural mowing device includes a shaft, a first cutting device, and a second cutting device. The shaft has an upper section, a middle section, and a lower section. The shaft is advanced in a field between two adjacent rows of planted matter. The first cutting device is mounted to the lower section of the shaft. The first cutting device extends laterally from the shaft to a distance covering only a distance between the two adjacent rows. The first cutting device cuts plant matter that grows between the two adjacent rows. The second cutting device is mounted to the middle section of the shaft. The second cutting device extends laterally from the shaft to a distance covering at least a portion of at least one of the two adjacent rows. The second cutting device cuts plant matter that grows in the at least one of the two adjacent rows.