Coulter Roller Bogey Layout for Balanced Depth Control
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Solution Overview
Problem
Existing coulter systems in agricultural machines face challenges in achieving precise depth guidance and smooth running, particularly when dealing with varying soil conditions, due to imbalanced ground contact forces and soil clod throwing.
Innovation Solution
A coulter system with a depth guide roller and pressure roller mounted on a common, rockable suspension support, forming a bogey chassis, where the depth guide roller overlaps with and scrapes the coulter disk to distribute contact forces uniformly and prevent soil clod throwing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the depth guide roller and pressure roller are mounted separately, then each roller can be independently adjusted, but the ground contact forces become imbalanced causing uneven distribution and reduced stability
Solution Approach 1:
The patent combines the depth guide roller and pressure roller into a single integrated assembly that moves together as one unit. This merging ensures that both rollers maintain consistent positioning relative to each other and the coulter disk, achieving balanced ground contact forces while preserving adjustment capability through the common suspension support.
2Ease of operation
If the depth guide roller is positioned far from the coulter disk, then it can guide depth independently, but soil clods are thrown and operation smoothness is compromised
Solution Approach 1:
The depth guide roller acts as an intermediary element positioned between the coulter disk and the ground. By placing it adjacent to the coulter disk rather than far away, it provides continuous guidance while intercepting soil particles before they can be thrown, thus eliminating the harmful effect of soil clod projection while maintaining depth control.
3Manufacturing precision
If the coulter disk is tilted at acute angles for furrow creation, then the desired furrow width and depth are achieved, but the smooth running of the coulter disk suffers due to uneven ground contact forces
Solution Approach 1:
The patent employs a dynamic suspension support system that allows the integrated roller assembly to rock and adapt to ground variations. This dynamic capability enables the coulter disk to maintain its tilted position for precise furrow creation while the suspension absorbs shocks and uneven forces, ensuring smooth running despite the angled configuration.
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 configuration ensures uniform ground contact forces, maintains smooth operation, and effectively prevents soil clods from being thrown, enhancing sowing accuracy and efficiency.
Implementation Method 1
the depth guide roller is arranged overlapping with and adjacent to an end face of the coulter disk and forms a scraper for scraping soil from the coulter disk
Data Source
AI summary
A coulter system for an agricultural machine including a coulter disk for pulling a sowing furrow, a depth guide roller for working depth guidance of the coulter disk and a pressure roller running behind the coulter disk for pressing material deposited in the sowing furrow and/or closing the sowing furrow. A seeder having such a coulter system is also disclosed. The depth guide roller and the pressure roller are mounted in the manner of a bogey chassis on a common, rockable suspension support, wherein the depth guide roller is arranged overlapping with and adjacent to an end face of the coulter disk and forms a scraper for scraping soil from the coulter disk.