Roller-shaped soil cultivation device with radially displaceable ring elements
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Solution Overview
Problem
Existing soil cultivation devices, such as stamping rollers, face high production costs due to stressed spring elements and lack a cost-effective and efficient operation mode.
Innovation Solution
The design features radially displaceable ring elements with fork-shaped spoke ends that allow for radial and axial movement, enabling deformation and self-cleaning, and incorporates seed/fertilizer outlets for integrated sowing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If spring elements are used in stamping rollers, then soil cultivation function is achieved, but production costs increase and reliability decreases due to high stresses
Solution Approach 1:
The patent removes the spring elements from the stamping roller design entirely. Instead of using traditional spring-loaded stamping elements, the invention employs a roller with circumferential gaps that allow the roller body itself to deform and flex during operation, eliminating the need for separate spring components and their associated manufacturing costs and reliability issues.
Solution Approach 2:
The patent changes the physical parameters of the roller by introducing circumferential gaps and varying the wall thickness in different regions. This allows the roller to exhibit flexible deformation characteristics without requiring spring elements, thereby reducing production costs while maintaining or improving reliability through a simpler structure.
2Strength
If rigid roller rings are used, then structural strength is maintained, but ability to deform and adapt to ground discontinuities is reduced
Solution Approach 1:
The patent segments the roller ring structure by introducing circumferential gaps that divide the roller into multiple sections. These gaps allow each section to deform independently while maintaining overall structural integrity, enabling the roller to adapt to ground discontinuities while preserving sufficient strength through the remaining material structure.
Solution Approach 2:
The patent applies local quality by varying the wall thickness and structural properties in different regions of the roller. Thinner sections allow for greater deformation and adaptability where needed, while thicker sections maintain structural strength in areas requiring higher load-bearing capacity, achieving both strength and adaptability simultaneously.
3Ease of manufacture
If continuous circumferential surface is used, then manufacturing is simplified, but ability to self-clean and handle obstacles is reduced
Solution Approach 1:
The patent introduces circumferential gaps that segment the continuous surface of the roller. This segmentation creates spaces between roller sections that allow soil and obstacles to be released more easily, preventing buildup and eliminating the clamping effect while still maintaining a relatively simple manufacturing process compared to fully complex structured rollers.
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 reduces production costs, enhances operational efficiency by allowing for effective soil tillage and self-cleaning, and supports sowing processes with improved seed bed preparation.
Implementation Method 1
the annular peripheral surface is guided radially displaceable in the axial direction of the spoke... at this point of engagement of the ring with the ground there is a temporary flattening or deviation from the ring shape and when leaving the ground engagement due to the resilience, a return to the circular shape takes place
Implementation Method 2
the radially outer ends of the spokes are connected to the ring element so that they can be moved and deflected in the radial direction
Data Source
Figure 1~6
Figure 4~8
Figure 7~10
AI summary
The device has soil stabilization tools (1) e.g. ram tools, formed as ring elements (7) that are fastened with a hub tube (2) by spokes (3-6) and arranged in radial direction. The ring elements are formed from steel in a deformable manner. Inner ends of the spokes are fastened with the hub tube. Outer ends of the spokes are connected with the ring elements in radial direction in a movable and deflectable manner. A radial over end of the spokes is formed as a head part (8) that receives a ring peripheral surface.