Packer Roller Spring Element Modular Assembly
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Solution Overview
Problem
Existing packer rollers for soil cultivation are costly due to the large number of parts required, have stability issues under high loads, and are difficult to maintain or replace, as they often rely on welding or complex clamping mechanisms that can fail under agricultural conditions.
Innovation Solution
A packer roller design featuring a carrier profile with spring elements that form a circular running surface without spokes, using detachable assembly elements like screws to connect the spring elements directly to the carrier profile, providing additional connection points for enhanced stability and elasticity without additional parts or welding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spokes are welded to the support profile to connect spring elements, then the packer roller achieves structural stability, but the number of parts increases and replacement becomes difficult
Solution Approach 1:
The packer roller is divided into modular components: support profile, spring elements, and connecting elements. Each spring element can be independently removed and replaced by detaching the connecting elements, eliminating the need to replace the entire roller assembly. This segmentation enables easy maintenance while maintaining structural integrity during operation.
2Ease of repair
If quarter-ring segments are clamped to the support profile to minimize welding, then part replacement becomes easier, but clamping forces are too low under high loads
Solution Approach 1:
The connecting elements are designed with adjustable clamping parameters including clamping force magnitude, distribution pattern, and directional components. This allows the connection system to adapt to varying load conditions while maintaining secure attachment, overcoming the insufficient clamping force of fixed designs.
3Strength
If spring element cross-section is increased to withstand higher loads, then load capacity improves, but elastic properties are impaired and weight increases
Solution Approach 1:
The spring element cross-section is optimized with non-uniform distribution: thicker sections at mounting points and connecting elements for strength, and thinner sections in the elastic deformation zones for flexibility. This local quality variation allows the spring element to withstand high loads while maintaining elastic properties and avoiding excessive weight increase.
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, improves stability under high loads, and allows for easy assembly and replacement of parts, creating a more efficient and durable packer roller for soil cultivation.
Implementation Method 1
The spring elements are each designed in such a way that targeted reconsolidation is achieved by means of the spring elements, as well as the creation of a crumbly soil structure
Data Source
Figure 1A
Figure 1B~1C
Figure 2A~2B
AI summary
A packer roller (10) for soil cultivation is disclosed, comprising at least one support profile (12) on which a plurality of spring elements (14) are arranged spaced apart from one another, wherein at least two opposing spring elements (14) form a largely circular or a circular running surface (16), wherein the spring elements (14) comprise at least one outer substantially circular circumferential surface (18), two inner mounting surfaces (20) corresponding at least partially to the contour of the support profile (12), and two connecting surfaces extending between the outer circumferential surface (18) and the inner mounting surface (20).The connecting sections (22) have at least one bore or cutout by means of which at least two spring elements (14) can be attached to the support profile (12), wherein at least one mounting element (26) is connected to the support profile (12) and at least one spring element (14). To create a packer roller (10) that is simplified and requires few parts, it is proposed that the connecting surfaces or connecting sections (22) each have at least one additional connection point (28) by means of which two opposing spring elements (14) are screwed and/or connected.