Wear-Resistant Conveyor Belt Link for Drive Surface Contact

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Solution Overview

Problem

Conveyor belts with interlocking links are prone to wear due to contact with drive surfaces, particularly at buttonheads, welds, and connecting portions, which can lead to damage and maintenance challenges, especially when navigating curvy paths.

Innovation Solution

The conveyor belt design incorporates a U-shaped link with an outermost portion that is anodized, heat treated, or made of a different material than the rest of the link, and a connecting portion that is also anodized or heat treated, or formed of a different material, to enhance wear resistance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the conveyor belt uses standard links made from uniform material, then the manufacturing process is simple and cost-effective, but the wear resistance at contact surfaces is insufficient

Engineering Contradiction:
Improvewear resistanceVSAvoidlink structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The link is constructed with different materials for different portions: the body portion is made from a first material while the outermost portion is made from a second material with superior wear resistance. This local differentiation allows the high-wear-contact areas to have enhanced durability without requiring the entire link to be complex or expensive.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The link utilizes composite construction by combining two different materials within a single component. The body portion uses one material optimized for structural integrity, while the outermost portion uses a different material specifically selected for wear resistance, creating a composite link that balances multiple performance requirements.

Inventive Principle:
Principle #40Composite materials

2Duration of action of stationary object

If the conveyor belt uses uniform material throughout the link, then the manufacturing process is straightforward, but the lifespan of the conveyor belt is reduced due to wear

Engineering Contradiction:
Improveconveyor belt lifespanVSAvoidmanufacturing simplicity
Core Design Contradiction:
Duration of action of stationary objectVSEase of manufacture

Solution Approach 1:

The link is constructed with different materials for different portions: the body portion is made from a first material while the outermost portion is made from a second material with superior wear resistance. This local differentiation allows the high-wear-contact areas to have enhanced durability without requiring the entire link to be complex or expensive.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The wear-resistant outermost portion is incorporated into the link design before the conveyor belt enters service. This preliminary incorporation of wear protection ensures that the high-wear areas are pre-equipped with durable material, extending the conveyor belt's operational lifespan before any wear issues arise.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the conveyor belt uses standard links without differentiated material properties, then production costs are lower, but maintenance frequency increases due to wear damage

Engineering Contradiction:
Improvemaintenance efficiencyVSAvoidmaterial wear
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

The link is constructed with different materials for different portions: the body portion is made from a first material while the outermost portion is made from a second material with superior wear resistance. This local differentiation allows the high-wear-contact areas to have enhanced durability without requiring the entire link to be complex or expensive.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The design accepts that wear will occur at contact surfaces but converts this harmful effect into a benefit by strategically placing wear-resistant material only where needed. The outermost portion is specifically engineered to withstand wear, transforming the inevitable wear process into a controlled phenomenon that occurs only in predetermined, protected areas.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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

This design significantly reduces wear on the outermost and connecting portions, extending the lifespan of the conveyor belt and reducing maintenance needs by providing a more durable contact surface and wear-resistant components.

Implementation Method 1

The outermost portion of the link may be anodized, heat treated, or formed of a different material than the rest of the link

Methodology Applied
Scientific EffectAnodizing: Anodising

Implementation Method 2

The outermost portion of the link may be anodized, heat treated, or formed of a different material than the rest of the link

Methodology Applied
Scientific EffectHeat treatment: Heat Treatment

Data Source

PatentEP4155238A1Conveyor belt link having wear resistant portion
Publication Date: 2023.03.29 ASHWORTH BROS INC
  • EP4155238A1 patent drawingFigure 1
  • EP4155238A1 patent drawingFigure 2
  • EP4155238A1 patent drawingFigure 3A

AI summary

A conveyor belt (300) configured to contact a drive surface (340), the conveyor belt comprising: a rod (310) having a free end, wherein the rod comprises an elongated portion of a rod material; a substantially U-shaped link (305) configured to receive the rod, the link having a first leg (315), a second leg (320), and a connecting portion (325) connecting the first leg and the second leg, wherein the connecting portion is anodized, heat treated, or formed of a different material than the first and second leg, and wherein the connecting portion is more resistant to wear than the first or second leg.