Abrasion Apparatus with Segmented Tool Assemblies
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Solution Overview
Problem
Existing surface abrasion tools are limited by power supply constraints, leave undesirable tooling marks, struggle to abrade close to walls, overheat, and are cumbersome, making them difficult to maneuver and service.
Innovation Solution
A surface abrasion apparatus with a motor-driven drivetrain, featuring a belt-connected array of tool assemblies with counter-rotating tool plates and a detachable handle, allowing for efficient surface preparation with adjustable weight distribution and easy maintenance, using a variable frequency drive for versatile power usage and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a single tool assembly is used, then the apparatus is simple in structure, but it cannot abrade surfaces close to walls effectively
Solution Approach 1:
The single tool assembly is divided into multiple independent tool assemblies (first, second, third, and fourth tool assemblies) that can be independently positioned and operated. Each tool assembly has its own tool plate and holder, allowing them to function as separate units while working together to abrade surfaces in tight spaces near walls.
Solution Approach 2:
The tool assemblies are arranged in a multi-dimensional configuration where at least one tool assembly is positioned laterally or longitudinally displaced from the others. This spatial arrangement in multiple dimensions allows the apparatus to reach and abrade surfaces close to walls that would be inaccessible to a single tool assembly.
2Manufacturing precision
If tool assemblies rotate in the same direction, then the drivetrain is simple, but tooling marks are left on the surface
Solution Approach 1:
The drivetrain is configured with asymmetric rotation directions for different tool assemblies. At least one tool assembly rotates in a first direction while another tool assembly rotates in a second direction that is opposite to the first direction. This asymmetric rotation pattern prevents tooling marks by ensuring that adjacent tool assemblies mark the surface in opposite directions, canceling each other out.
3Power
If the apparatus is designed for high power, then abrasion effectiveness is improved, but heat generation increases causing overheating
Solution Approach 1:
The high-power motor is segmented into multiple lower-power motor units, with each tool assembly being driven by its own motor. This segmentation distributes the heat generation across multiple smaller units rather than concentrating it in a single high-power motor, reducing the overall heat buildup while maintaining the total abrasion power needed for effective surface preparation.
4Productivity
If the apparatus is made larger for better abrasion coverage, then productivity is improved, but mobility between floors becomes difficult
Solution Approach 1:
The apparatus is divided into multiple modular tool assemblies that can be independently positioned and operated. This modularity allows the system to achieve broad abrasion coverage through the coordinated action of multiple units while maintaining a compact form factor for each individual unit, ensuring easy mobility between floors and through tight spaces.
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
The apparatus achieves smooth surface preparation with minimal tooling marks, efficient heat management, and improved mobility, enabling effective surface renewal near walls and in tight spaces, while being easily serviced and transported.
Implementation Method 1
a motor housed therein; a chassis housing a drivetrain, the drivetrain comprising: a drive pulley operative connected to the motor
Implementation Method 2
a belt operatively connecting the drive pulley and the plurality of tool assembly pulleys
Implementation Method 3
a tool plate comprising a tool segment with an abrading surface
Data Source
AI summary
An apparatus for abrading a surface is provided. The apparatus includes: a framework with a motor housed therein; a chassis housing a drivetrain, the drivetrain including a drive pulley operative connected to the motor, a plurality of tool assembly pulleys, a belt operatively connecting the drive pulley and the plurality of tool assembly pulleys; a plurality of tool assemblies operatively connected to the drive pulley and the plurality of tool assembly pulleys, each tool assembly including: a tool holder, a tool plate comprising a tool segment with an abrading surface, wherein the tool holder and tool plate are detachably connected by a plurality of equidistantly spaced pins, wherein the number of pins is a multiple of three.