Adjustable Opener Disc Seeding Assembly for Unploughed Soil
Solution Overview
Problem
Seed drills for precision sowing often struggle with simplified cultivation techniques, where plant debris can cause jamming and soil hardness variations complicate seed placement, leading to inconsistent sowing and germination quality.
Innovation Solution
A versatile sowing element with an adjustable opener disc and press wheel configuration, including a beveled coulter and independently adjustable ground pressure, ensures precise seed placement and adaptation to varying soil conditions and cultivation techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an opener disc is added to facilitate furrow opening in simplified cultivation techniques, then the ability to sow on unploughed land is improved, but the device complexity increases
Solution Approach 1:
The sowing element is designed with a universal structure that can function in both traditional plowed cultivation and simplified unploughed cultivation techniques. The opener disc is integrated into the existing sowing mechanism, allowing the same device to adapt to different soil conditions and cultivation methods without requiring completely separate systems.
Solution Approach 2:
The opener disc is made adjustable in position and depth, allowing it to be moved or repositioned based on the specific cultivation technique being used. This dynamic adjustability enables the device to transition between different operational modes (plowed vs. unploughed land) without permanent structural changes, maintaining versatility while controlling complexity.
2Ease of manufacture
If the opener disc depth is fixed during assembly, then the assembly process is simplified, but the adaptability to different soil hardness and crop requirements is reduced
Solution Approach 1:
The opener disc depth is designed to be adjustable rather than fixed, allowing operators to modify the penetration depth according to soil hardness variations and specific crop requirements. This dynamic adjustment capability maintains ease of assembly through standardized adjustment mechanisms while providing the necessary versatility for different agricultural conditions.
Solution Approach 2:
The system allows for parameter changes in the opener disc configuration, specifically the depth and angle of insertion, which can be modified to match different soil conditions and crop types. This parameter adjustability ensures optimal performance across varying agricultural scenarios without complicating the basic assembly process.
3Device complexity
If common adjustment of contact pressure is used for disc and press wheel, then the adjustment mechanism is simplified, but the continuity of seed support is compromised during ground variations
Solution Approach 1:
The contact pressure adjustment is segmented into independent controls for the opener disc and press wheel, allowing each component to be adjusted separately according to specific operational needs. This segmentation enables the opener disc to be raised or lowered independently when encountering ground obstacles, maintaining seed support continuity while keeping the overall adjustment mechanism relatively simple.
Solution Approach 2:
The adjustment system is designed to be dynamic and responsive, allowing real-time modifications to the contact pressure of individual components based on ground conditions. This dynamic capability ensures that the opener disc can react independently to ground variations, maintaining reliable seed support without requiring overly complex adjustment mechanisms.
4Manufacturing precision
If the sowing element is designed for precision sowing with multiple components, then the sowing precision is improved, but the ease of operation is reduced due to accessibility issues
Solution Approach 1:
The adjustment devices are positioned in spatial arrangements that provide multiple access paths and angles, allowing operators to reach and adjust components from different directions. This dimensional approach to component layout maintains high sowing precision through proper component positioning while improving operational accessibility by eliminating dead ends and difficult-to-reach areas.
Data Source
Figure 1~4
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AI summary
The invention relates to a seeding assembly (10) comprising at least one share (2) ahead of a press wheel (1), a depth wheel (4) and at least one opening disc (5), characterized in that the opening disc (5) is adjacent to the share (2).