Segmented Soil Roller Casing for Fast Tool Replacement

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Solution Overview

Problem

Existing soil cultivation roller systems face difficulties in easily detaching and replacing roller tools from their holders, which complicates maintenance and operation, especially when the system is in use or when different tools are needed.

Innovation Solution

A casing design for a soil cultivation roller with segments that allow for easy access to fastening shafts through tool access openings, eliminating the need for lateral intervention and enabling tool detachment without disassembling the roller shell, allowing for tool replacement even when the casing is removed from the roller body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If roller tools are attached directly to the roller shell with welded holders, then the structure is simple and robust, but the tools cannot be easily detached or replaced

Engineering Contradiction:
Improveease of tool detachmentVSAvoidcasing structure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The roller shell is divided into multiple detachable casing segments that can be separated from each other. This segmentation allows access to the tool holders from the outside without requiring complete disassembly of the roller shell, enabling easy tool replacement while maintaining structural integrity during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tool holders are extracted from the traditional welded configuration and redesigned with detachable mounting shafts that can be removed through openings in the casing segments. This extraction allows tools to be independently replaced without removing the entire roller shell or affecting other components.

Inventive Principle:
Principle #2Taking out (Extraction)

2Productivity

If the roller shell is made as a single integrated structure, then structural strength is maximized, but tool replacement requires complete disassembly

Engineering Contradiction:
Improvetool replacement efficiencyVSAvoidtime for tool maintenance
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The roller shell is segmented into multiple sections that can be independently opened or removed. This allows maintenance personnel to access specific tool holders quickly without disassembling the entire roller shell structure, significantly reducing tool replacement time while maintaining overall structural strength.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The casing segments are pre-configured with openings and connection mechanisms that enable quick access to tool holders. This preliminary design preparation allows for rapid tool replacement during operation without requiring complex disassembly procedures or specialized tools.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If tool holders are designed with lateral openings for tool release, then tools can be detached using lever movements, but the structure becomes more complex and tools may be exposed to contamination

Engineering Contradiction:
Improvetool access easeVSAvoidcontamination risk
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A mounting shaft acts as an intermediary component between the tool holder and the tool. The mounting shaft can be detached through openings in the casing segment, providing indirect access to the tool for removal without requiring lateral openings in the tool holder itself. This intermediary mechanism protects the tool holder interior from contamination while enabling easy tool replacement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3951065B1Casing for a soil working roller
Publication Date: 2023.12.13 HAMM AG
  • EP3951065B1 patent drawingFigure 1~2
  • EP3951065B1 patent drawingFigure 3~4
  • EP3951065B1 patent drawingFigure 5

AI summary

A casing for a soil cultivation roller (20) of a soil cultivation machine, rotatable about a roller rotation axis, comprises a plurality of casing segments (40) arranged or attachable in the circumferential direction around a roller body (22) of the soil cultivation roller (20), wherein a plurality of roller tools (48) are arranged on an outer side of the casing segments (40) facing away from the roller body, wherein at least a part of the roller tools (48) comprises an interchangeable holder attached to a respective casing segment (48) and an interchangeable tool detachably attached or attachable to the interchangeable holder, wherein a mounting opening for receiving a mounting shaft of an interchangeable tool attached or to be attached to the interchangeable holder is formed in the interchangeable holder.wherein a tool access opening (84) is provided in the casing segment (40) supporting at least one tool holder.