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

VSEngineering 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

Engineering Contradiction:
Improveadaptability to corridor widthVSAvoidvehicle structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

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.

Inventive Principle:
Principle #15Dynamics

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

Engineering Contradiction:
Improvelevelling speedVSAvoidadjustment time
Core Design Contradiction:
ProductivityVSLoss of time

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.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If displacement members are positioned to work undulations, then levelling is achieved, but new undulations are created at doubled frequency

Engineering Contradiction:
Improvefloor levelling precisionVSAvoidnew undulations
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

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.

Inventive Principle:
Principle #35Parameter changes

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

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS8465343B2Floor levelling vehicle
Publication Date: 2013.06.18 ALPHAPLAN GRP BV
  • US8465343B2 patent drawing
  • US8465343B2 patent drawing
  • US8465343B2 patent drawing

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.