Quick-Change Roller Tool Wedge Pre-Tensioning
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Solution Overview
Problem
Existing roller tools for ground processing machines face challenges in easily replacing exchangeable tools and quick-change tool holders due to wear, as both components are subject to wear and require complex detachment processes.
Innovation Solution
A roller tool design featuring a tool carrier fixed to the carrier cladding by welding, with a quick-change tool holder comprising two identical body parts that form a receptacle space around the tool carrier, allowing for easy detachment and replacement of both the tool holder and the exchangeable tool without direct contact with the carrier cladding, utilizing a wedge effect for pre-tensioning and protection from external influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the quick-change tool holder is detachably fixed on the tool carrier, then the replacement of the exchangeable tool is easy, but the quick-change tool holder itself becomes subject to wear and requires replacement
Solution Approach 1:
The system is divided into three separable components: the tool carrier (fixed on carrier cladding), the quick-change tool holder (detachably mounted on tool carrier), and the exchangeable tool (detachably mounted on quick-change tool holder). This segmentation allows each component to have optimized properties - the tool carrier can be made of wear-resistant material for permanent mounting, while the tool holder and tool can be independently replaced when worn.
2Strength
If the tool carrier is fixedly coupled to the carrier cladding by welding, then the attachment is stable and durable, but the tool carrier material must be suitable for welding and may not be wear-resistant
Solution Approach 1:
The tool carrier is separated from the tool holder, allowing the tool carrier to be optimized for welding compatibility and permanent attachment, while the tool holder (made of different material) handles the wear-resistant requirements for ground processing operations.
3Object-affected harmful factors
If the quick-change tool holder comprises two body parts forming a receptacle space, then the tool carrier is protected from external influences, but the structure becomes more complex
Solution Approach 1:
The tool carrier is extracted and enclosed within the receptacle space formed by the two quick-change tool holder body parts. This enclosure protects the tool carrier and its welding attachment from external wear and damage, while the two body parts can be designed as mirror images to minimize complexity.
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
Facilitates easy and independent replacement of worn components, reducing wear on the tool carrier and quick-change tool holder, while maintaining stable attachment and operation with a simple structure and minimal parts, enhancing durability and maintenance efficiency.
Implementation Method 1
A wedge effect pre-tensioning a respective quick-change tool holder body part in the direction toward the carrier cladding and in contact thereon is thus generated by the design of the tool carrier
Data Source
AI summary
A roller tool for a ground processing roller of a ground processing machine includes a tool carrier to be fixed on an outer circumferential side of a carrier cladding of a ground processing roller, a quick-change tool holder to be detachably fixed on the tool carrier, and an exchangeable tool to be detachably fixed on the quick-change tool holder.