Abrasive Disc Through Opening Alignment for Suction Efficiency
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Solution Overview
Problem
Existing abrasive discs do not optimize the working surface area and connection capacity when used with abrasive appliances having either five or eight suction holes, leading to suboptimal performance and attachment issues.
Innovation Solution
The abrasive means features a plurality of through openings with distinct radial dispositions and diameters, grouped to maximize suction cross-section alignment with suction holes while minimizing attachment area loss, allowing for improved connection and extended service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the abrasive disc has through openings aligned with suction holes to maximize suction cross section, then suction efficiency is improved, but the connection capacity and attachment surface are adversely affected
Solution Approach 1:
The through openings are segmented into multiple groups (first group with 1-4 openings, second group with 4-8 openings, third group with 1-3 openings) with different radial dispositions and cross-sectional areas. This segmentation allows different groups to serve different functions: some optimize suction alignment while others preserve attachment surface area, resolving the contradiction between suction efficiency and connection capacity.
Solution Approach 2:
Different groups of through openings have different local properties (cross-sectional areas and radial dispositions). The first group has larger cross-sectional areas for optimal suction alignment, while the second group has smaller areas to minimize attachment surface loss. This local differentiation allows simultaneous optimization of both suction efficiency and connection capacity in different regions of the abrasive disc.
2Productivity
If the through openings are enlarged to align with suction holes, then the suction cross section is maximized, but the working surface area is reduced
Solution Approach 1:
The through openings are divided into groups with different cross-sectional areas. The first group has larger areas optimized for suction alignment, while the second group has smaller areas that minimize working surface loss. This segmentation allows the system to achieve adequate suction cross section without excessively reducing the working surface area.
Solution Approach 2:
Instead of enlarging all through openings uniformly, only the first group of through openings has enlarged cross-sectional areas optimized for suction alignment. The second group maintains smaller areas to preserve working surface. This partial action approach achieves sufficient suction performance while minimizing working surface reduction.
3Manufacturing precision
If the abrasive disc is designed for a specific hole-circle diameter, then optimal suction alignment is achieved, but adaptability to different abrasive-means carriers is reduced
Solution Approach 1:
The abrasive disc design with multiple groups of through openings having different radial dispositions enables universal compatibility with different abrasive-means carriers (five-hole version with ~72mm hole-circle diameter, eight-hole version with ~65mm hole-circle diameter). The first group aligns with one carrier type while the second group aligns with the other, allowing a single abrasive disc design to serve multiple applications.
Solution Approach 2:
The system transitions from a static, single-configuration abrasive disc to a dynamic, multi-configuration design where different groups of through openings can align with different carrier types. This dynamic adaptability allows the abrasive disc to optimize suction alignment for different carrier configurations without requiring multiple specialized designs.
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 configuration achieves a larger suction cross-section with enhanced connection capacity and service life by optimizing the alignment of through openings with suction holes, maintaining efficient material removal and attachment performance.
Implementation Method 1
abrasion appliance having a suction extraction arrangement
Data Source
AI summary
An exchangeable abrasive mechanism or disc for use on abrasive-mechanism carriers having suction holes includes a plurality of through openings that each have a centroid. The through openings are differentiated into three groups that differ in the radial disposition of the centroids. A first group comprises at least one, but not more than four, through openings of a first cross section. At least two of the through openings of the first group are disposed on a first circumcircle diameter that is substantially identical to one of the hole-circle diameters such that, when the abrasive mechanism is correctly disposed on an abrasive-mechanism carrier, they are in direct alignment with and can overlap, two corresponding suction holes. A second group of through openings of a second, preferably smaller, cross section, comprises at least four through openings that are disposed on a second circumcircle diameter that differs from the first circumcircle diameter.