Floor Levelling Vehicle with Variable Grinding Tools
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Solution Overview
Problem
Existing mobile floor levelling vehicles are inefficient in adapting to corridors of varying widths and often require time-consuming adjustments, leading to increased costs and incomplete levelling due to fixed displacement member configurations and non-variable grinding tool distances.
Innovation Solution
The vehicle features elongated and rigid front and back displacement members mounted on separate longitudinal axes, allowing them to move over tracks worked by grinding tools, reducing up-and-down movement and enabling faster levelling without prior floor profile determination, with tiltable grinding tools for controlled material removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the distance between grinding tools is fixed, then the vehicle structure is simple, but the vehicle cannot adapt to corridors of varying width
Solution Approach 1:
The distance between grinding tools is made variable through a telescopic mechanism that allows the grinding tools to move relative to each other in the longitudinal direction. This dynamic adjustment capability enables the vehicle to adapt to different corridor widths without requiring a completely different vehicle configuration for each width, thus improving adaptability while controlling structural complexity through a single adjustable mechanism.
2Productivity
If bulk part removing means remove a thick layer in one go, then levelling speed is improved, but the operation becomes time consuming due to frequent adjustments
Solution Approach 1:
The grinding tools are equipped with adjustable depth mechanisms that allow dynamic control of the material removal depth. This enables the system to optimize the balance between removing sufficient material for levelling and avoiding excessive removal that would require frequent adjustments and safety interventions, thereby improving productivity while minimizing time loss.
3Manufacturing precision
If displacement members are positioned to work undulations, then levelling is achieved, but new undulations are created at doubled frequency
Solution Approach 1:
The system changes the operational parameters by adjusting the distance between grinding tools and the depth of material removal. By optimizing these parameters, the system achieves sufficient levelling precision while minimizing the creation of new undulations. The variable distance between grinding tools allows for better distribution of material removal across the floor surface, reducing the likelihood of creating harmful undulations at doubled frequency.
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
This design allows for improved levelling speed and adaptability to varying widths, reducing material removal per operation and minimizing the creation of new undulations, resulting in a smoother floor surface and reduced operational time.
Implementation Method 1
a polishing device which is rotatable in a direction parallel to the floor surface and which is provided to contact the floor surface that needs to be levelled and to remove an amount of material from the floor to achieve the desired degree of levelling
Data Source
AI summary
This invention relates to a mobile floor levelling vehicle for levelling an undulating floor surface, which comprises a vehicle body with front and back displacement means for moving the vehicle body. To carry out the levelling operation the floor levelling vehicle comprises at least one grinding tool which is provided and driven to remove an amount of material from the floor, and at least one additional polishing device provided at a position behind the back displacement members in moving direction of the levelling vehicle.


