Seeder Depth Control Roller Fertilizer Mixing
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Solution Overview
Problem
Existing seed drills face inefficiencies in mixing fertilizers with soil and require additional costly components for fertilizer distribution, as well as excessive soil movement and poor fertilizer placement near seeds.
Innovation Solution
Aligning the fertilizer application device's outlet opening with the depth control roller, using two freely rotatable rollers with disc-like side surfaces to mix fertilizers with soil, and incorporating adjustable fertilizer distribution to ensure effective placement and mixing near the seed furrow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a chisel seed drill is used to create furrows and deposit seed, then seed placement is achieved, but additional costly components are required for proper fertilizer distribution
Solution Approach 1:
The fertilizer application device is integrated with the depth control roller, combining two functions (fertilizer distribution and depth control) into a single component. This eliminates the need for separate fertilizer distribution mechanisms, reducing both cost and complexity while achieving effective fertilizer placement near the seed
2Quantity of substance
If fertilizer is deposited separately from seed in the ground, then larger amounts of fertilizer can be applied, but mixing with soil is insufficient
Solution Approach 1:
The fertilizer is deposited onto the depth control roller before the roller incorporates it into the soil. This preliminary placement on the roller surface allows the rotating roller to immediately mix the fertilizer with soil particles as it rotates, ensuring thorough mixing while maintaining the ability to apply large amounts of fertilizer
3Manufacturing precision
If depth control rollers are used to mix fertilizer with soil, then fertilizer incorporation is improved, but fertilizer placement precision near seed furrow must be optimized
Solution Approach 1:
The outlet opening of the fertilizer application device is made adjustable relative to the depth control roller, allowing the operator to change the fertilizer deposition position according to different soil conditions and crop requirements. This dynamic adjustment capability maintains precise fertilizer placement while providing adaptability to various operating conditions
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Achieves efficient fertilizer placement and mixing with soil, preventing evaporation and reducing soil movement, while allowing for adaptable fertilizer supply and simultaneous seed and fertilizer deposition.
Implementation Method 1
at least part of the fertilizers flowing out of this outlet opening collides with elements of the rotating depth control roller and/or the outside of the disk-like side surface
Implementation Method 2
The soil parts are mixed with the fertilizer scattered on the soil surface mainly by the soil parts being caught and thrown back by the depth guide rollers
Data Source
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AI summary
The invention relates to a seeder, in particular a direct seeder having a frame (1) supported on the ground (30) by means of wheels (2), having storage containers (10, 11) for seeds (33) and fertilizer (31) and having seed coulters (8), to which the seeds and fertilizer contained in the storage containers can be fed, and having fertilizer dispensers (28) to which fertilizer (31) contained in the storage container (11) can be fed, in each case via proportioning devices (12, 13, 14) in adjustable quantities, wherein the coulters for introducing the seeds (33) comprise trailing depth control means (9) and are disposed in a plurality of transverse rows and also spaced apart one behind the other transversely with respect to the direction of travel (24). The fertilizer dispensers (28) are disposed in at least one transverse row behind the coulters (8) for dispensing the fertilizer (31), and the trailing depth control means are designed as two depth control rollers (9) which are spaced apart from one another, which are mounted so as to be freely rotatable and which have disc-like side faces (26) facing one another. According to the invention the fertilizer dispensers (28) are disposed in the region of the trailing depth control means (9) to propose simplified dispensing of the fertiliser in larger quantities in the region of the seeds, wherein the fertilizer is placed in the ground separately from the seeds.