Vibrating Scraper for Belt Conveyor Residue

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Solution Overview

Problem

Existing scraper devices for conveyor belts are inefficient in removing residues due to adhesion of material to the scraper members and have suboptimal scraping performance, requiring improvements in design and functionality to enhance effectiveness and maintenance.

Innovation Solution

The scraper device features curved scraper members with a support plate, wear pad, and elastic material, along with vibrating mechanisms using unbalanced electric vibrators, and a kit of spare wear pads with different shapes to optimize scraping efficiency and reduce adhesion, while maintaining a compact size and facilitating maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional scraper members are used, then the structure is simple, but residue adhesion reduces scraping effectiveness

Engineering Contradiction:

Improvescraping effectivenessVSAvoidresidue adhesion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent applies vibrating devices to the scraper members to generate mechanical vibrations that prevent residue material from adhering to the scraper surfaces. The vibrations disrupt the bonding between residues and scrapers, continuously cleaning the scraper surfaces and maintaining scraping effectiveness without requiring complex structural changes.

Inventive Principle:

Principle #18Mechanical vibration

Solution Approach 2:

The scraper members are designed with curved surfaces instead of flat surfaces. This curvature prevents residues from adhering by creating a surface geometry where material cannot settle and stick effectively. The curved shape allows residues to slide off more easily, reducing adhesion problems while maintaining a relatively simple overall structure.

Inventive Principle:

Principle #14Spheroidality (Curvature)

2Volume of moving object

If scraper device size is reduced, then space is saved, but maintenance access may be limited

Engineering Contradiction:

Improvescraper device sizeVSAvoidmaintenance accessibility

Core Design Contradiction:

Volume of moving objectVSEase of repair

Solution Approach 1:

The scraper device is divided into modular components including replaceable wear pads, adjustable support assemblies, and independent vibrating devices. This segmentation allows individual components to be accessed, removed, or replaced without disassembling the entire device, facilitating maintenance while keeping the overall device compact.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The support assemblies incorporate adjustable and movable elements that allow the scraper members to be positioned and accessed from different angles. The dynamic adjustment capabilities enable maintenance personnel to access components in a compact device configuration, preventing the need for large device dimensions while ensuring maintainability.

Inventive Principle:

Principle #15Dynamics

3Productivity

If scraper members are curved downstream, then scraping efficiency is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvescraping efficiencyVSAvoidcurved scraper manufacturing

Core Design Contradiction:

ProductivityVSEase of manufacture

Solution Approach 1:

The scraper members are designed with downstream curvature to follow the belt contour and improve scraping contact. The curvature is implemented in a standardized manner that can be achieved through common manufacturing processes such as bending or molding, balancing the need for improved scraping efficiency with manufacturability constraints.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The curvature parameters of the scraper members are optimized to achieve the best scraping performance while remaining within standard manufacturing capabilities. By carefully selecting curvature radii and angles that can be produced with conventional fabrication methods, the design achieves improved scraping efficiency without excessive manufacturing complexity.

Inventive Principle:

Principle #35Parameter changes

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 effectively reduces residue adhesion, enhances scraping efficiency, and simplifies maintenance by utilizing curved scraper members and vibrating mechanisms, ensuring better cleaning performance and ease of maintenance.

Implementation Method 1

an first vibrating device for vibrating the or each scraper member, and a second vibrating device for vibrating the or each scraper member

Methodology Applied

Scientific EffectVibration: Vibration

Implementation Method 2

the or each scraper member is curved around a substantially horizontal and transverse axis, downstream

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP2759496B1Scraper for belt conveyor with a vibrating device

Publication Date: 2016.07.06 BRUNONE RENE

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AI summary

The device has a supporting structure (5) and a scraping element (7) intended to come into contact with a conveyor belt. An unbalanced microelectric vibrator (110) vibrates the scraping element. The supporting structure includes a core supporting the scraping element, and two support assemblies placed transversely on either side of the core. Each support assembly (35) includes a cross-beam for connection to the core, and an upright for articulation of the cross-beam, where the vibrator is fixed at the cross-beam of one of the support assemblies. Independent claims are also included for the following: (1) an assembly of scraping device and a kit of wear replacement plates (2) a conveyor.