Soil Roller Sheath Segments for Clean Tool Detachment
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Solution Overview
Problem
Existing soil working rollers with interchangeable tools are difficult to detach due to the need for lateral engagement and engagement into the interchangeable holder, which complicates the replacement process and exposes the mechanism to contamination.
Innovation Solution
A sheath for the soil working roller is designed with sheath segments that house interchangeable holders, featuring a tool through opening coaxial to the fastening opening, allowing direct access to the fastening shaft for detachment without lateral engagement, and an interchangeable holder interior space that prevents contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lateral engagement method is used to detach the fastening shaft from the interchangeable holder, then the replaceable tool can be detached from the interchangeable holder, but the process becomes complex and exposes the mechanism to contamination
Solution Approach 1:
Instead of accessing the fastening shaft laterally through the interchangeable holder as in conventional designs, the patent inverts the approach by providing axial access to the fastening shaft through the sheath segment. The tool through opening in the sheath segment allows a tool to approach the fastening shaft from the axial direction, simplifying the detachment process and avoiding complex lateral engagement mechanisms.
Solution Approach 2:
The sheath segment acts as an intermediary structure that provides controlled access to the fastening shaft. The tool through opening in the sheath segment serves as a mediator that allows tool engagement with the fastening shaft while protecting the interior space of the interchangeable holder from contamination. This intermediary approach eliminates the need for lateral openings in the interchangeable holder itself.
2Ease of operation
If lateral openings are provided in the interchangeable holder for tool engagement, then the fastening shaft can be accessed, but the interior space of the interchangeable holder is exposed to contamination
Solution Approach 1:
The sheath segment serves as an intermediary protective structure between the external environment and the interior space of the interchangeable holder. The tool through opening in the sheath segment allows tool passage while the sheath itself protects the interchangeable holder interior from contamination. This eliminates the need for lateral openings directly in the interchangeable holder.
Solution Approach 2:
The system is segmented into the sheath segment and the interchangeable holder as separate functional units. The sheath segment handles the function of providing tool access and protecting against contamination, while the interchangeable holder maintains its sealed interior space. This segmentation allows each component to be optimized for its specific function without compromising the other.
3Ease of operation
If the sheath is removed from the roller body for tool replacement, then tools can be easily detached, but the machine operation is interrupted
Solution Approach 1:
The sheath is segmented into removable sheath segments that can be detached from the roller body independently. This allows tools to be accessed and replaced through the tool through opening in the sheath segment without requiring removal of the entire roller or major components. The segmented design enables maintenance operations while keeping the machine operational.
Solution Approach 2:
The tool replacement process is designed to be self-contained within the sheath segment structure. The tool through opening provides direct access to the fastening shaft, allowing operators to perform tool changes using simple tools without requiring specialized equipment or complete disassembly of the roller. This self-service capability maintains productivity during tool changes.
Data Source
AI summary
A sheath for a soil working roller includes a plurality of sheath segments mounted or mountable to surround a roller body of the soil working roller and following one another in the circumferential direction. A plurality of roller tools is arranged on an outer side of the sheath segments and at least one part of the roller tools includes an interchangeable holder mounted on a respective sheath segment and a replaceable tool detachably mounted or mountable on the interchangeable holder. A fastening opening is formed in the interchangeable holder for accommodating a fastening shaft of a replaceable tool mounted or to be mounted on the interchangeable holder. An impacted tool through opening is provided in association with the at least one interchangeable holder in the sheath segment supporting the same for engaging the fastening shaft of the replaceable tool mounted on the interchangeable holder with an impacted tool.