Adjustable Furrow Opener Assembly for Seed-Fertilizer Depth Separation
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Solution Overview
Problem
Existing agricultural seeding and fertilizing technologies struggle to adjust seed and fertilizer furrow depths and separation distances effectively in response to varying soil conditions, crop types, and fertilizer types, leading to potential seed damage and inefficient nutrient availability.
Innovation Solution
A seeding apparatus with a furrow controller that adjusts the relative positions of seed and fertilizer furrow openers and a packer wheel to vary seed and fertilizer depths and separation distances based on soil conditions, using a trailing arm pivotally attached to an implement frame with a bias element and a distribution system for seeds and fertilizers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed furrow opener assembly is used with fixed frame height, then the structure is simple and easy to operate, but the seed and fertilizer furrow depths cannot be adjusted to accommodate different crops and soil conditions
Solution Approach 1:
The patent applies the dynamics principle by making the furrow opener assembly adjustable rather than fixed. The trailing arm with packer wheel and furrow openers can be repositioned vertically along the frame, allowing dynamic adjustment of furrow depths for different crops and soil conditions while maintaining a relatively simple overall structure
Solution Approach 2:
The patent segments the furrow opener assembly into independent adjustable components - the trailing arm, packer wheel, seed furrow opener, and fertilizer furrow opener can be positioned independently. This segmentation allows each component to be adjusted separately to achieve optimal seed and fertilizer placement depths
2Reliability
If seed and fertilizer are placed at fixed depths, then the device operation is simple, but the separation distance between seed and fertilizer cannot be optimized to prevent seed damage from fertilizer
Solution Approach 1:
The patent enables dynamic adjustment of the separation distance between seed and fertilizer furrows by allowing independent vertical positioning of the seed furrow opener and fertilizer furrow opener on the trailing arm. This ensures reliable seed protection while maintaining ease of operation through simple mechanical adjustment mechanisms
3Adaptability or versatility
If the frame height is fixed above the soil surface, then the implement structure is stable, but the seed and fertilizer furrow depths cannot be changed when changing crops
Solution Approach 1:
The patent segments the depth adjustment capability from the frame structure itself by providing adjustable trailing arms that can be repositioned vertically along the frame. This allows furrow depths to be changed for different crops while the frame maintains its stable fixed position
Solution Approach 2:
The patent introduces dynamic adjustability to the trailing arm assembly, allowing it to be repositioned to create different furrow depths while the frame remains stable. This resolves the contradiction by making the depth-adjustable component separate from the stable frame structure
Data Source
AI summary
A seeding apparatus includes a trailing arm pivotally attached to an implement frame and a bias element exerting a downward bias force on the trailing arm. Fertilizer and seed furrow openers are attached to the trailing arm such that a seed furrow has a seed furrow depth less than a fertilizer furrow depth of a fertilizer furrow. A packer wheel is rotatably attached to a rear end of the trailing arm. A furrow controller is selectively operative to change the relative positions of the seed furrow opener, the fertilizer furrow opener, and the packer wheel to attain a desired one of a plurality of configurations where in each configuration the seed furrow has a seed furrow depth less than the fertilizer furrow depth to provide a separation distance. The seed depth and separation distance is quickly and conveniently increased in adverse soil conditions and decreased in favorable soil conditions.