Floor Cleaning Machine Fixing Device Tensioning Mechanism
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Solution Overview
Problem
Existing floor cleaning machines lack a simple and efficient method for tool change, requiring complex procedures and causing inefficiencies in assembly and disassembly due to inadequate contact areas and tensioning mechanisms.
Innovation Solution
The design incorporates a fixing device with specific contact areas and a tensioning system that allows for easy mounting and demounting of floor working tools, featuring inclined surfaces, eccentric mechanisms, and a clamping device to secure tools, enabling quick tool changes and tolerance compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex tensioning mechanism is used to secure tools, then the reliability of tool mounting is improved, but the device complexity increases
Solution Approach 1:
The patent replaces complex mechanical tensioning mechanisms with a simpler clamping device that uses a clamping force applied directly to the contact areas. The fixing device utilizes the geometric arrangement of contact areas and a straightforward clamping action rather than intricate mechanical systems, thereby maintaining reliability while reducing complexity.
Solution Approach 2:
The fixing device is designed with contact areas that serve multiple functions: they provide mounting surfaces, define positioning, and distribute clamping forces. This multi-functionality eliminates the need for separate components for each function, reducing overall device complexity while ensuring reliable tool mounting.
2Manufacturing precision
If multiple contact areas are provided for tool mounting, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple contact areas into a unified fixing device structure. The first and second contact areas on the tool and third and fourth contact areas on the chassis are integrated into a single clamping action, achieving precise positioning without requiring separate complex mechanisms for each contact point.
Solution Approach 2:
The invention changes the geometric parameters of the contact areas and their spatial arrangement to achieve precise tool positioning. By optimizing the locations and orientations of the contact areas, the system attains manufacturing precision through geometric constraints rather than complex adjustment mechanisms.
3Ease of operation
If a simple fixing device is used for tool change, then the ease of operation is improved, but the reliability of tool securing deteriorates
Solution Approach 1:
The fixing device is designed to be self-aligning through its contact areas. When the tool is placed on the chassis, the contact areas automatically align and define the correct positioning, eliminating the need for complex alignment procedures. The clamping device then simply applies force to secure the tool, making the operation simple while maintaining reliability.
Data Source
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AI summary
The invention relates to a floor cleaning machine, comprising a traveling frame (12), at least one floor treatment tool device (166), which holds at least one floor treatment tool (72), and a fixing unit (110) for releasably mounting the at least one floor treatment tool device (166) on the traveling frame (12) by means of a first fixing unit (112) arranged on the at least one floor treatment tool device (166), and by means of a second fixing unit (114) arranged on the traveling frame (12). The first fixing unit (112) and the second fixing unit (114) are adapted to one another, wherein the first fixing unit (112) comprises a first contact area (116) and a second contact area (124), the second fixing unit (114) comprises a third contact area (120) for the first contact area (116), and a fourth contact area for the second contact area (124). The fixing unit (110) has a tensioning mechanism (144) for bracing the at least one floor treatment tool device (166) on the traveling frame (12).