Closed-Surface Textile Overlay for Low-Noise Drive Belts
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Solution Overview
Problem
Existing drive belts with textile overlays face issues of rubber mixture leakage through the mesh, leading to poor noise behavior and increased wear, particularly when using knit fabrics and hard heating sleeves in the manufacturing process.
Innovation Solution
A drive belt with a power transmission zone covered by a woven fabric featuring a closed surface structure, achieved through false twisting or plating/crimping of warp and weft threads, which reduces rubber penetration and enhances noise resistance and abrasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a knit fabric overlay is used on the power transmission zone, then flexibility and stretchability are improved, but rubber mixture penetration through the mesh increases
Solution Approach 1:
The patent changes the surface structure parameter of the textile overlay from an open mesh (knit fabric) to a closed surface structure. This parameter change maintains flexibility while preventing rubber penetration by eliminating the open mesh pathways that allow mixture passage.
Solution Approach 2:
The patent uses a composite structure combining textile fibers arranged in a closed surface pattern. This composite configuration provides both the flexibility of textile materials and the barrier function needed to prevent rubber mixture penetration through the overlay.
2Object-affected harmful factors
If a textile overlay with open mesh structure is used, then noise reduction is improved, but wear of the textile overlay increases
Solution Approach 1:
The patent changes the surface topology parameter from open mesh to closed surface structure. This modification reduces wear by preventing rubber mixture from contacting and degrading the textile fibers, while maintaining the noise reduction function through the textile's inherent damping properties.
3Productivity
If hard heating sleeves are used in the manufacturing process, then production efficiency is improved, but rubber penetration through the belt back increases
Solution Approach 1:
The patent applies preliminary anti-action by providing a closed surface structure on the belt back before the vulcanization process. This pre-established barrier prevents rubber mixture from penetrating through during the heating process, allowing the use of hard heating sleeves without the harmful side effect of rubber leakage.
Data Source
Figure 1
AI summary
The present invention relates to a drive belt with an elastic base body based on at least one thermoplastic elastomer or on the basis of a vulcanizate, comprising a cover layer as the belt back and a substructure with a power transmission zone, wherein the power transmission zone is provided with a fabric, characterized in that the fabric has a closed surface structure.