Rotary Tool Holder Segmentation for Easy Blade Replacement
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Solution Overview
Problem
Current land preparation machines lack efficient tools and tool holders for rotary land preparation implements that enable effective coupling and easy replacement of cutting tools, leading to reduced performance and increased maintenance costs due to worn-out blades.
Innovation Solution
A tool and tool holder system with a plurality of cleats and cleat supports that facilitate releasable coupling, allowing for easy installation and replacement of tools, and distributing forces evenly to enhance durability and reduce material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If traditional fixed tool holders are used in rotary land preparation implements, then structural simplicity is maintained, but tool replacement becomes difficult and maintenance costs increase due to worn-out blades
Solution Approach 1:
The tool holder is divided into a body portion and a separate tool portion, with the tool portion further segmented into multiple tools that can be independently replaced. The body portion includes a tool interface with multiple tool receptacles, each capable of holding a different tool. This segmentation allows individual tool replacement without replacing the entire tool holder assembly, resolving the contradiction between ease of repair and device complexity.
Solution Approach 2:
The tool interface is designed with dynamic characteristics, allowing tools to be selectively attached and detached from the tool holder body. The interface includes features such as tool receptacles with retaining mechanisms that enable quick tool changes during operation or maintenance, transforming the static tool holder into a dynamic system that adapts to different tooling needs.
2Productivity
If tools are designed for easy replacement, then maintenance costs are reduced, but the coupling mechanism becomes more complex
Solution Approach 1:
The tool interface is designed as a universal coupling mechanism that can accommodate multiple different tool types through standardized receptacles. The same body portion and interface structure can hold various tools (cutting tools, grinding tools, etc.), providing multi-functionality. This universal design enables easy tool replacement across different tool types without requiring complex tool-specific coupling mechanisms, thus improving maintenance efficiency while controlling complexity.
3Strength
If force distribution is concentrated at specific points, then coupling strength is increased, but tool failure susceptibility increases due to stress concentration
Solution Approach 1:
The force distribution mechanism transitions from point-contact coupling to surface-contact coupling by introducing a tool interface with multiple receptacles that distribute forces across a larger dimensional space. The forces are distributed across multiple contact points and surfaces within the receptacles, changing the dimensionality of force application from concentrated points to distributed surfaces, thereby reducing stress concentration while maintaining coupling strength.
Solution Approach 2:
The tool interface incorporates local quality variations in the form of multiple receptacles with different geometries and force distribution characteristics optimized for specific tool types. Each receptacle is designed with local structural features that distribute forces appropriately for the particular tool it holds, ensuring both strong coupling and reduced stress concentration at critical points.
Data Source
AI summary
A land preparation implement includes a rotatable drum assembly that includes a tool assembly. The tool assembly includes a tool holder and a tool. The tool includes a plurality of cleats. The tool holder includes a plurality of cleat supports. The cleats and the cleat supports cooperate to facilitate releasable coupling of the tool to the tool holder.