Soil Roller Spacer Element Form-Fit Positioning
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Solution Overview
Problem
Existing soil rollers lack a defined and uniform tensioning mechanism for soil consolidation rings and spacer elements, leading to inconsistent spacing and positioning due to the elastic material between them.
Innovation Solution
The implementation of spacer elements with projections that directly contact and clamp against the soil compaction rings, ensuring a form fit and defined spacing, using a stiffer material than the rings and incorporating recesses and cavities for secure engagement and self-cleaning, with the rings designed to jam against the support tube for improved positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heel elements press against soil reinforcement rings, then the rings are held in place, but the elastic material between spacer elements prevents defined and uniform tensioning
Solution Approach 1:
The invention extracts the elastic material from between the spacer elements, allowing the spacer elements to directly contact and clamp the soil consolidation rings. This removal of the elastic material enables defined and uniform tensioning while maintaining reliable positioning through the direct form-fit connection of the spacer element projections with the ring recesses.
2Manufacturing precision
If multiple different parts are used for spacer elements and soil consolidation rings, then specific positioning is achieved, but the number of parts to be kept increases
Solution Approach 1:
The invention designs the spacer elements with projections that engage with recesses in the soil consolidation rings, creating a universal form-fit connection system. The projections on spacer elements have half the width of the distance between spacer elements, allowing identical spacer elements to be used throughout while achieving precise positioning through the standardized engagement geometry between projections and recesses.
3Adaptability or versatility
If soil consolidation rings are made of elastic material, then they can be compressed and expanded, but they cannot be securely fixed in position
Solution Approach 1:
The invention segments the positioning function from the elastic function by introducing separate spacer elements with rigid projections that engage with recesses in the elastic soil consolidation rings. The spacer elements provide secure fixed positioning through direct contact and clamping, while the elastic material of the rings remains intact for compression and expansion capabilities during operation.
4Device complexity
If recesses do not extend over the entire width of soil compaction rings, then the structure is simplified, but the engagement between spacer elements and rings is insufficient
Solution Approach 1:
The invention applies local quality by designing recesses that extend over the entire width of the soil consolidation rings, creating a continuous engagement surface across the full width. This ensures sufficient engagement strength and stable form-fit connection between the spacer element projections and the ring recesses, while the overall structure remains simple through the straightforward geometry of the recesses and projections.
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 solution achieves a uniform and defined tensioning and spacing of soil compaction rings, reducing the need for different parts and ensuring precise arrangement, while allowing for easy assembly and self-cleaning, enhancing the overall performance of the soil roller.
Implementation Method 1
a form fit is enforced by the direct contact of the approaches of the spacer elements
Implementation Method 2
the material of the soil compaction rings can be pressed against the support tube by the meeting of the spacer elements 3 and the soil compaction rings 2 in the axial direction
Data Source
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AI summary
A soil roller with spaced-apart circumferential soil compaction rings, which are arranged at intervals on a central support tube, wherein circumferential spacer elements, whose outer diameter is significantly smaller than that of the soil compaction rings, are arranged between the soil compaction rings. To simplify assembly and improve the positioning of the soil compaction rings on the support tube, the soil compaction rings are provided with several spaced-apart recesses extending across the entire width of the soil compaction rings in the area of the central support tube and the spacer elements. The spacer elements have corresponding projections that engage in the recesses when assembled.