Linear Soil Tillage Apparatus with Segmented Cutting and Pulverizing Zones
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Solution Overview
Problem
Current soil preparation methods, such as disking and rototilling, are inefficient, requiring multiple passes, excessive fuel and horsepower, and leading to soil compaction and microbial damage, while failing to effectively manage crop residue and organic matter.
Innovation Solution
A soil tillage apparatus comprising a frame with an earth cutter, hammer tiller, chiselers, and a packer wheel in a linear arrangement, where the earth cutter slices and feeds topsoil into the hammer tiller for mid-air pulverization, reducing wear and horsepower requirements, and the chiselers dig deep into the soil without burying organic matter, allowing for efficient soil preparation and nutrient retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple passes with disking equipment are used to achieve proper tillage depth, then soil preparation quality is improved, but fuel consumption increases and soil compaction worsens
Solution Approach 1:
The tillage operation is segmented into distinct functional zones: front discs for initial cutting, middle discs for depth penetration, and rear discs for surface finishing. Each zone performs a specific function, allowing the equipment to achieve proper tillage depth in a single pass rather than requiring multiple repeated passes, thereby reducing fuel consumption while maintaining soil preparation quality.
Solution Approach 2:
The patent introduces a longitudinal dimension to the disc arrangement, positioning discs at different locations along the direction of travel rather than concentrating them in a single plane. This spatial distribution allows simultaneous execution of multiple tillage functions (cutting, deep penetration, surface finishing) across different longitudinal positions, enabling complete soil preparation in one pass and eliminating the need for repeated fuel-consuming passes.
2Manufacturing precision
If multiple passes with disking equipment are used to achieve proper tillage depth, then soil preparation quality is improved, but soil compaction increases
Solution Approach 1:
The tillage operation is segmented into distinct functional zones: front discs for initial cutting, middle discs for depth penetration, and rear discs for surface finishing. Each zone performs a specific function, allowing the equipment to achieve proper tillage depth in a single pass rather than requiring multiple repeated passes, thereby reducing fuel consumption while maintaining soil preparation quality.
Solution Approach 2:
The patent introduces a longitudinal dimension to the disc arrangement, positioning discs at different locations along the direction of travel rather than concentrating them in a single plane. This spatial distribution allows simultaneous execution of multiple tillage functions (cutting, deep penetration, surface finishing) across different longitudinal positions, enabling complete soil preparation in one pass and eliminating the need for repeated fuel-consuming passes.
3Device complexity
If rear discs are positioned behind front discs in a disking system, then equipment structure is simplified, but tillage efficiency decreases due to re-manipulating soil
Solution Approach 1:
Each disc position is assigned a specific functional quality: front discs are optimized for initial cutting and breaking, middle discs for deep penetration and loosening, and rear discs for surface finishing and leveling. This local functional differentiation ensures that each disc performs its specialized task efficiently without re-manipulating soil already processed by previous discs, thereby maintaining tillage efficiency while preserving equipment structural simplicity.
4Manufacturing precision
If rototillers are used to make soil fine and level for planting, then seed bed quality is improved, but organic matter is buried and microorganisms are killed
Solution Approach 1:
Instead of burying organic matter deep in the soil as conventional rototillers do, the patent inverts the approach by using front discs to cut and middle discs to loosen soil while leaving organic matter and crop residue on or near the surface. The rear discs then level the surface without incorporating organic matter deeply, thereby achieving fine and level seed bed quality while preserving organic matter and protecting microorganisms from burial and decomposition.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
In one embodiment, a soil tillage apparatus comprises a frame having an earth cutter, a hammer tiller, chiselers, a soil leveler, and a packer wheel all in a linear arrangement. The earth cutter comprises a plurality of discs and is positioned at the front of the frame, proximal to a tractor, truck, or other pulling means. The hammer tiller is positioned behind the earth cutter and comprises a rotary drum having one or more pulverizes attached thereto for pulverizing soil received from the earth cutter. The chiselers are positioned next and dig deep into the soil that is not passed above by the hammer tiller. The soil leveler comprises a rotary drum with a plurality of protrusions for leveling the soil. The packer wheel likewise comprises a rotary drum with a plurality of protrusions which may be used for leveling purposes or for seed bed furrowing, depending upon the arrangement.