Alternating-Yarn Textile Overlay for Belt Noise and Wear Balance
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Solution Overview
Problem
Existing drive belts with textile coverings, such as V-ribbed belts, face challenges in maintaining optimal friction conditions and noise behavior both wet and dry, with cotton coatings providing good noise but poor abrasion resistance, and polyamide coatings offering good wear but poor noise in wet conditions.
Innovation Solution
A plated knitted fabric textile covering with alternating yarn types at regular intervals on both sides, optimizing adhesion, friction, and noise properties, and providing enhanced abrasion resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If cotton coating is used on drive belts, then noise behavior is improved, but abrasion resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining cotton yarn and polyamide yarn in a single plated knitted fabric structure. The cotton yarn provides noise reduction properties while the polyamide yarn contributes abrasion resistance, creating a composite textile covering that simultaneously delivers both benefits rather than requiring separate layers or coatings.
2Strength
If polyamide coating is used on drive belts, then abrasion resistance is improved, but noise behavior in wet conditions deteriorates
Solution Approach 1:
The plated knitted fabric combines polyamide yarn for abrasion resistance with cotton yarn that becomes effective in wet conditions. The alternating structure ensures both material types are present in the textile covering, allowing the cotton to compensate for polyamide's poor wet noise behavior while the polyamide maintains structural integrity and wear resistance.
Solution Approach 2:
The patent implements local quality by creating different functional zones within the textile covering through alternating yarn placement. Different rows or sections of the knitted fabric contain different yarn types in controlled patterns, allowing specific areas to provide noise reduction while others provide wear resistance, optimizing local properties for different functional requirements.
3Ease of manufacture
If single yarn type is used in plated knitted fabric, then manufacturing is simplified, but friction conditions cannot be optimized for both wet and dry states
Solution Approach 1:
The patent uses composite materials with cotton and polyamide yarns to achieve adaptability across different friction conditions. The complementary properties of the two yarn types allow the textile covering to maintain appropriate friction characteristics whether dry or wet, eliminating the need for separate coatings for different conditions.
Solution Approach 2:
The alternating pattern of yarn types in the plated knitted fabric creates a periodic structure where cotton and polyamide yarns are systematically arranged in repeating sequences. This periodic arrangement ensures consistent performance characteristics across the entire textile covering while maintaining manufacturability through regular production patterns.
Data Source
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AI summary
The invention relates to an article having an elastic main body based on at least one thermoplastic elastomer or based on a vulcanizate, having an article surface that is provided with a textile overlay, which is a plated knitted fabric, wherein the textile overlay consists of at least two yarn types, which alternate in the individual rows of stitches at regular intervals.