Sowing Row Assembly with Rear Depth Wheel for Soil Pressing
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Solution Overview
Problem
Existing agricultural seed drills face challenges in efficiently applying seeds into seed furrows while adjusting soil working depth and effectively pressing soil behind the seeds during cultivation.
Innovation Solution
A sowing row arrangement featuring a cutting disc and a depth adjustment wheel, where the wheel is set back from the disc and in a pushing position, supported by a wheel holding device with angled arm sections, allowing for efficient soil penetration and adhesion removal, and adjustable via a pivot mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the depth adjustment wheel is arranged in front of the cutting disc, then it can adjust the soil working depth effectively, but it cannot effectively press the soil behind the seeds during cultivation
Solution Approach 1:
The patent inverts the conventional arrangement by positioning the depth adjustment wheel behind the cutting disc in the direction of travel, rather than in front of it. This inversion allows the wheel to simultaneously perform depth adjustment and press the soil behind the seeds, resolving the contradiction between depth adjustment precision and seed application efficiency.
Solution Approach 2:
The depth adjustment wheel is designed to perform multiple functions: adjusting the soil working depth of the cutting disc and pressing the soil behind the seeds during cultivation. By positioning the wheel behind the cutting disc and configuring the wheel holding arm to apply force in the direction of travel, the wheel becomes a multi-functional component that addresses both depth control and soil compaction needs.
2Manufacturing precision
If the depth adjustment wheel is arranged on the inside of the cutting disc, then it can adjust depth, but it creates interference with the cutting disc operation
Solution Approach 1:
The wheel holding device is segmented into distinct sections: a first holding arm section that extends from the outside of the cutting disc to the outside of the depth adjustment wheel, and a second holding arm section that extends from the inside of the wheel. This segmentation allows the device to maintain clear spatial separation between the cutting disc and wheel while providing effective depth adjustment, reducing interference and simplifying the overall structure.
3Productivity
If the depth adjustment wheel is positioned to press soil effectively, then seed furrow formation improves, but soil adhesion on the cutting disc increases
Solution Approach 1:
The depth adjustment wheel performs the soil pressing action after the cutting disc has created the seed furrow and before the seed is deposited. This preliminary action of pressing the soil behind the cutting disc helps prevent soil from adhering to the disc during subsequent operation, while still ensuring proper seed furrow formation and seed placement.
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
Enhances seed application efficiency by minimizing soil adhesion on the cutting disc and effectively pressing soil behind the seeds, improving soil working depth adjustment and seed furrow formation.
Implementation Method 1
The depth adjustment wheel is designed to press the soil behind the cutting disc during soil cultivation
Implementation Method 2
the depth adjustment wheel is pushed in the direction of travel during soil cultivation by means of the wheel holding device
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to an arrangement for a sowing row of an agricultural seed drill, as well as to a sowing row and an agricultural seed drill. The arrangement is formed with a cutting disc (3; 4), which is rotatably mounted on a disc holder and is designed for soil cultivation to form seed furrows; and a depth adjustment wheel (10; 11).The depth adjustment wheel (10; 11) is rotatably mounted on a wheel holding device (12) on an axle device; displaceable relative to the cutting disc (3; 4) in such a way that a soil working depth for soil cultivation can be set for the cutting disc (3; 4); adjacent to the cutting disc (3; 4) and set back from it in the direction of travel in such a way that the depth adjustment wheel (10; 11) is designed to press the soil behind the cutting disc (3; 4) during soil cultivation; and arranged in a pushing position in such a way that the depth adjustment wheel (10; 11) is pushed in the direction of travel by means of the wheel holding device (12) during soil cultivation.The wheel holding device (12) has a wheel holding arm (13) which is located on the outside with respect to a space (25) between the cutting disc (3; 4) and the depth adjustment wheel (10; 11) and which holds the depth adjustment wheel (10; 11). The wheel holding arm is formed with a first holding arm section (19) extending on a side of the depth adjustment wheel (10; 11) facing away from the cutting disc (3; 4), at the end of which the axle device (24) is arranged. (Fig. 1).