Composite Metal Roller Structure for Noise and Weight Reduction
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Solution Overview
Problem
Existing metal rollers used in conveyors are excessively loud and heavy, leading to increased noise and weight in transportation systems.
Innovation Solution
A reinforced metal roller design featuring a metal tube with a non-metal reinforcement filling, such as corrugated plastic, that includes a plurality of corrugated sheets or silicone-based powder, which reduces noise and weight by up to 20% and increases flexural strength by 50% to 100%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal rollers are used in conveyors, then structural strength is maintained, but noise level increases excessively
Solution Approach 1:
The roller assembly uses a composite structure combining metal tube with non-metallic reinforcement filling materials (such as plastic, foam, or composite fillings). This composite approach maintains the structural strength provided by the metal tube while the non-metallic filling reduces noise generation and absorption, directly resolving the contradiction between strength and noise.
Solution Approach 2:
The reinforcement filling is placed locally inside the metal tube to provide noise reduction and structural support where needed, rather than making the entire roller metallic. This localized approach maintains strength at critical areas while reducing overall noise, addressing the contradiction between structural strength and noise level.
2Strength
If metal rollers are used in conveyors, then structural integrity is maintained, but weight increases
Solution Approach 1:
The roller uses a composite construction with a metal tube providing structural integrity and non-metallic reinforcement filling (plastic, foam, or composite materials) providing support with lower density. This composite material approach reduces the overall weight compared to solid metal rollers while maintaining the necessary structural integrity through the combination of materials.
Solution Approach 2:
The metal tube is used only where structural integrity is critical, while non-metallic filling materials are used in the internal space to provide support with reduced weight. This localized material distribution maintains structural integrity where needed while minimizing overall weight.
3Strength
If reinforcement filling is added to metal tube, then flexural strength increases by 50-100%, but device complexity increases
Solution Approach 1:
The reinforcement filling is nested inside the metal tube, with the filling material placed within the hollow interior space of the tube. This nested configuration increases flexural strength by 50-100% through the combined structural support, while the simplicity of the nested design (one component inside another) minimizes the increase in device complexity.
Data Source
AI summary
An example roller is provided. The example roller can include a metal tube extending between a first end and a second end, where the metal tube includes an outer surface and an inner surface. The example roller can include a first bearing disposed at the first end. The example roller can include a second bearing disposed at the second end. The example roller can include a reinforcement filling in contact with the inner surface of the metal tube, wherein the reinforcement filling is made at least partially of a non-metal material.