Belt-Driven Roller Conveyor Curved Path Design

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Solution Overview

Problem

Existing powered roller conveyor systems face limitations in design flexibility and noise levels, with belt-driven systems being quiet but inflexible and chain-driven systems being noisy but capable of curvature, while also experiencing wear and maintenance challenges.

Innovation Solution

A horizontally-looped drive belt system with an elastomeric material and vertically aligned center fibers, supported by vertical frame members and driven by a motor, allowing for both straight and curved conveyor sections with enhanced wear indication and reduced noise through a thin, strong, and flexible belt design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a belt-driven roller conveyor system is used, then noise levels are reduced, but design flexibility and curvature capability are limited

Engineering Contradiction:
Improvenoise levelsVSAvoiddesign flexibility
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The patent applies a thin-film wear indicator layer on the drive belt that can detect belt condition without adding significant thickness or rigidity. This allows the belt to maintain its flexibility for curved paths while incorporating the wear detection functionality, resolving the contradiction between noise reduction and design flexibility.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The wear indicator layer acts as an intermediary between the drive belt and the monitoring system. It provides wear information without interfering with the belt's mechanical properties, allowing the belt to remain flexible and quiet while enabling wear detection capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a chain-driven roller conveyor system is used, then design flexibility and curvature capability are improved, but noise levels increase

Engineering Contradiction:
Improvedesign flexibilityVSAvoidnoise levels
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the chain-driven mechanical system with a belt-driven system that uses friction for power transmission. This substitution eliminates the noisy chain links and pins while maintaining the ability to convey rollers, and the thin wear indicator layer adds minimal interference to this quieter mechanical system.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Strength

If a thick drive belt is used, then strength and durability are improved, but flexibility and curvature capability are reduced

Engineering Contradiction:
Improvebelt strengthVSAvoidcurvature capability
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The patent uses a thin-film wear indicator layer that does not significantly increase the overall belt thickness. This allows the belt to maintain its flexibility for curved paths while the underlying belt structure provides the necessary strength and durability for operation.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The drive belt system employs a composite structure with a wear indicator layer on the belt surface. This composite design allows the thin indicator layer to provide wear detection while the base belt material maintains the strength and flexibility required for curved paths and durable operation.

Inventive Principle:
Principle #40Composite materials

4Reliability

If wear indication capability is added to the drive belt, then maintenance detection is improved, but belt complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvewear detectionVSAvoidmanufacturing difficulty
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent applies a thin-film wear indicator layer on the drive belt that can be manufactured using coating or lamination processes. This approach adds wear detection capability without requiring complex multi-component assembly, maintaining relative manufacturing simplicity while enabling reliability monitoring.

Inventive Principle:
Principle #30Flexible shells and thin films

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 provides a flexible and quiet conveyor system capable of curved paths with reduced wear and noise, maintaining effective belt tracking and product alignment, while enabling efficient detection of belt wear and extending service life.

Implementation Method 1

A horizontally-looped drive belt system with an elastomeric material and vertically aligned center fibers

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

A drive belt or chain can be used to turn rollers that provide the support surface for the articles

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS10040633B2Belt-driven roller conveyor
Publication Date: 2018.08.07 INTELLIGRATED HEADQUARTERS LLC
  • US10040633B2 patent drawing
  • US10040633B2 patent drawing
  • US10040633B2 patent drawing

AI summary

A conveyor section for transportation or accumulation of articles such as cartons and totes includes a pair of spaced, opposing side rails, vertical frame members attached transversely between the pair of opposing side rails, and live rollers transversely attached for rotation between the opposing side. An upstream end idler and a downstream end idler both having a vertical axis of rotation are attached at respective upstream and downstream ends of the conveyor section. A drive belt is vertically elongate and supported for horizontal looping between the upstream and downstream end idlers. The drive belt supported and guided by the vertical frame members such that a drive loop side and a return loop side are horizontally positioned under the live rollers. The drive loop side of the drive belt is at selectively engageable to an undersurface of the live rollers. A drive motor is operatively coupled to drive the drive belt.