Self-cleaning agricultural roller with deformable bands
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Solution Overview
Problem
Agricultural rollers with conventional tires face efficiency issues in sticky or wet conditions due to soil accumulation between tires, requiring additional scrapers that complicate design, manufacture, and maintenance.
Innovation Solution
Incorporating smaller, deformable tires with narrower casings between larger tires on the roller, which self-clean by deforming to prevent soil accumulation, eliminating the need for external scrapers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal scrapers are installed to clean the tires during use, then the cleaning effectiveness is improved, but the risk of tire damage and punctures increases
Solution Approach 1:
The tire's own deformation during operation serves to clean itself by preventing soil accumulation in the spaces between tires, eliminating the need for external metal scrapers that cause damage
Solution Approach 2:
The harmful metal scrapers are completely removed from the system and replaced by the self-cleaning mechanism inherent in the tire design, eliminating the source of tire damage while maintaining cleaning functionality
2Reliability
If scrapers are installed between the tires to prevent dirt accumulation, then the cleaning performance is improved, but the device complexity increases
Solution Approach 1:
The tire deformation mechanism automatically performs the cleaning function that would otherwise require additional scraper devices, simplifying the overall roller design
Solution Approach 2:
The tire serves dual functions: maintaining roller efficiency through its primary function and self-cleaning through its deformation characteristics, eliminating the need for separate cleaning devices
3Reliability
If scrapers are installed to clean the roller, then the cleaning effectiveness is improved, but the manufacturing and maintenance complexity increases
Solution Approach 1:
The complex scraper assembly system is completely removed, leaving only the simplified tire-deformation-based self-cleaning mechanism that is easier to manufacture and maintain
Solution Approach 2:
The self-cleaning function is inherent in the tire design itself, requiring no additional manufactured components or maintenance interventions beyond normal tire operation
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 overall cleaning performance of the roller by preventing soil accumulation between tires, simplifying design, manufacture, and maintenance by eliminating the need for additional cleaning devices.
Implementation Method 1
Each band has a respective deformable casing. The bands are smaller than the tires, while their casing is narrower. The proposed roller offers enhanced cleaning performance because the space between two tires is partially filled by a self-cleaning band.
Implementation Method 2
During operation, the tread can, for example, move radially when the tire is compressed under the weight of the agricultural machine. This radial movement of the tread or the deformation of the sidewalls loosens the soil without affecting the roller's efficiency.
Data Source
AI summary
An agricultural roller 1 comprises a tubular support 3 and a series of tires 5 mounted on the support 3. Each tire 5 in the series has a respective uninflated casing 15. The roller further comprises a series of bands 11, mounted on the support 3 interleaved within the series of tires 5. Each band 11 has a respective casing 17. The bands 11 are smaller than the tires 5, while their casing 17 is narrower.