Soil Cultivation Device Sickle-Shaped Spring Arms
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Solution Overview
Problem
Existing soil compaction devices face issues with clods of earth and plant residues accumulating in the spring arms, leading to reduced elasticity and potential breakage, as well as inefficient use of resilient properties due to the design of the spring arms' connection to the axis.
Innovation Solution
The design features sickle-shaped spring arms that protrude outward from the shaft with a tangential attachment to the supporting body, allowing for a larger radius and continuous curvature without sharp bends, enabling effective elastic properties and self-cleaning capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If spring arms are designed with radial extension from the axis to form the circumference, then the device achieves a complete encircling circle for soil compaction, but the sharp bending transition point creates a risk of breakage and reduces the spring arm's elastic properties
Solution Approach 1:
The spring arms are designed with a curved profile that transitions smoothly from the radial extension section to the circumferential section, replacing the sharp 90-degree bend with a gradual curve. This curvature distribution eliminates stress concentration points and allows the spring arms to maintain their elastic properties while still forming a complete encircling circle for effective soil compaction.
2Device complexity
If spring arms extend radially outward from the axis, then the structure achieves simplicity and direct force transmission, but the resilient properties are not effectively utilized and clods accumulate in the spring arms
Solution Approach 1:
The spring arms are designed with a dynamic curved profile that allows them to flex and adapt during rotation. The curve enables the spring arms to effectively utilize their resilient properties by allowing greater deflection and elastic recovery, while the smooth transition prevents clod accumulation by reducing crevices where material could get trapped.
3Adaptability or versatility
If the spring arms are made highly flexible to resist obstacles, then the device can handle stones and clods effectively, but the spring arms may be deflected excessively and break without adequate stopping mechanism
Solution Approach 1:
The curved profile design inherently provides a more gradual stress distribution that acts as a cushioning mechanism. The smooth transition curve allows the spring arms to absorb impact forces from obstacles more effectively, reducing the risk of sudden excessive deflection and breakage while maintaining high flexibility for obstacle handling.
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
This design enhances the durability and self-cleaning properties of the soil treatment device, allowing it to handle obstacles and maintain functionality while reducing the risk of breakage and improving traction.
Implementation Method 1
the portion adjacent the free end forming part of a circumference around the axis and being resilient
Data Source
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AI summary
The cultivation device has a horizontal, swiveling shaft (10) with an axle (11), one or multiple carrier bodies (12) arranged at the shaft, and multiple crescent-shaped spring arms (20), which are fastened with end section in or at the carrier bodies. The crescent-shaped spring arms of the carrier body rising outward in a direction deviating from a radial direction and changes in a curvature into the section, which forms a part of the cycle around the axle.