Grinding Tool Carrier Body Web Recesses for Centrifugal Strength
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Solution Overview
Problem
Existing carrier bodies for grinding tools face issues with excessive expansion under centrifugal forces and inadequate rigidity against lateral forces, particularly when trying to minimize weight while maintaining stability.
Innovation Solution
Incorporating recesses in the webs connecting the hub ring and casing ring allows for increased spatial coverage without weight increase, enhancing strength against centrifugal forces and rigidity against lateral forces, and the geometry of these features influences the dynamic behavior of the carrier body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the carrier body is designed with minimal material to reduce weight, then weight is reduced, but strength against centrifugal forces and rigidity against lateral forces deteriorate
Solution Approach 1:
The web is segmented by introducing recesses that divide it into multiple partial webs. This segmentation allows the web to cover a larger spatial area while maintaining structural integrity through the distributed partial webs, resolving the contradiction between weight reduction and strength enhancement
Solution Approach 2:
The recesses create a three-dimensional structural feature in the web, transforming it from a simple planar connection to a multi-dimensional geometry. This dimensional change allows the web to achieve both weight reduction and improved strength by optimizing material distribution in multiple directions
2Weight of moving object
If the carrier body is designed with minimal material to reduce weight, then weight is reduced, but rigidity against lateral forces deteriorates
Solution Approach 1:
The web is divided into partial webs through recesses, creating a segmented structure that maintains rigidity while reducing material usage. The multiple partial webs work together to resist lateral forces effectively
Solution Approach 2:
The web structure functions as a composite configuration where multiple partial webs form an integrated load-bearing system. This composite approach allows the structure to achieve high rigidity with reduced material mass
3Ease of manufacture
If the web geometry is simplified to ease manufacturing, then manufacturing complexity is reduced, but the ability to influence dynamic behavior deteriorates
Solution Approach 1:
The recesses introduce localized geometric features in specific areas of the web without complicating the overall manufacturing process. These local modifications are sufficient to significantly influence the dynamic behavior of the entire carrier body
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 solution significantly improves the carrier body's strength and rigidity, reducing vibrations and maintaining stability under rotational and lateral forces, while maintaining a reduced weight.
Implementation Method 1
By providing at least one recess (48) in each of the webs (10), it is possible to cover a larger spatial area with the webs without increasing the weight of the carrier body
Implementation Method 2
the strength against centrifugal forces and the rigidity against lateral forces can be significantly improved and influenced
Implementation Method 3
the strength against centrifugal forces and the rigidity against lateral forces can be significantly improved and influenced
Data Source
Figure 1a
Figure 1b~1d
Figure 2a
AI summary
Carrier body (1, 2, 3, 4, 5, 6, 30) for grinding tools with an inner hub ring (7) which encloses a central bore (8) for connecting the grinding tool to a rotary drive, and an outer sleeve ring (9) for receiving an abrasive, in particular in the form of an electroplated coating, a slip ring or several grinding segments, wherein the hub ring (7) and the sleeve ring (9) are connected to each other via several spaced-apart webs (10, 11, 12, 51), wherein the webs (10, 11, 12, 51) each have at least one recess (13, 14, 15, 16, 17, 52), and the webs (10, 11, 12, 51) have at least two spaced-apart recesses (13, 14, 15, 16, 17, 52) partial webs (18, 19, 20, 21, 22, 23, 53, 54) have, and wherein - a partial web (18, 19, 20, 21, 22, 23) of a web (10, 11, 12) with a partial web (18, 19, 20, 21, 22, 23) of an adjacent web (10, 11, 12) each form a truncated arch (26),wherein the tips (27) of the arches (26) fully executed in thought lie outside the mantle ring (9), or - a partial web (53, 54) of a web (51) with a partial web (53, 54) of an adjacent web (51) each form an arch (55), wherein the tips (56) of the arches (55) touch the mantle ring (9).