Folding Land Roller With Offset Overlap Rollers
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Solution Overview
Problem
Existing land rolling and packing implements face challenges in achieving a wide operational width while maintaining a compact transport width, particularly when transitioning between field operation and transport positions, due to the complexity of overlapping roller sections and the need for multiple sections to follow ground contours.
Innovation Solution
The design incorporates a center section with pivotally attached wings and rollers that can move independently to align with the travel direction during transport, featuring a center wheel and wing wheels that adjust to support the rollers above the ground, allowing the implement to fold into a narrow transport position and expand laterally for field operation, with overlap rollers adjusting to avoid contact during turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple roller sections are added to increase operational width, then field coverage is improved, but transport position complexity increases
Solution Approach 1:
The implement is divided into a center section and multiple wing sections that can be independently positioned. Each wing section contains roller elements that can be folded or extended, allowing the overall width to be adjusted between transport and operational configurations without requiring complex reconfiguration of the entire structure.
Solution Approach 2:
The wing sections are designed with dynamic positioning capabilities, allowing them to be folded inward for transport and extended outward for field operation. This dynamic reconfiguration enables the implement to transition between compact and wide configurations, resolving the contradiction between transport complexity and field coverage.
2Productivity
If roller sections are made to follow ground contours, then ground coverage efficiency is improved, but structural stress increases
Solution Approach 1:
The implement uses multiple independent roller sections (center and wing sections) that can each follow ground contours independently. This segmentation allows each section to adapt to terrain variations without transmitting excessive stress through the entire structure, as each section absorbs local variations independently.
Solution Approach 2:
The wing sections are designed with adjustable parameters including fold angles and extension positions, allowing optimization of the follow-ground capability while controlling structural stress. By adjusting these parameters, the implement can achieve efficient ground contour following while maintaining structural integrity.
3Productivity
If overlapping roller sections are used to provide complete field coverage, then productivity is improved, but difficulty in positioning for transport increases
Solution Approach 1:
The overlapping roller sections are designed with dynamic positioning mechanisms that allow automatic or assisted alignment during transport. The wing sections can be folded to predetermined positions that naturally align with the center section, reducing the complexity of manual positioning while maintaining complete field coverage capability during operation.
Data Source
AI summary
A land roller implement has a center frame and a center roller. Wings are pivotally mounted to a wing bracket pivotally mounted to, and extending rearward from, each side of the center frame. The wings and center frame thus move independently up and down when operating. The bracket is locked and wheels mounted on the brackets move the rollers up for transport. Inner and outer rollers on each wing are aligned and separated by a roller spacing. An overlap roller rolls over theis spacing. In transport position the right and left wings extend rearward from the center frame and right and left overlap rollers are aligned with, and adjacent to, each other. During a turn, the wings pivot and move closer to each other. To avoid contact with each other the right and left overlap rollers move forward and rearward to offset positions.