Conveyor Belt Scraper with Modular Helical Shaft and Elastic Blade Zones
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Solution Overview
Problem
Existing conveyor belt scrapers suffer from damage due to large loads and have limited elastic deformability, leading to reduced longevity and challenging maintenance, which results in costly downtime and safety hazards during replacement.
Innovation Solution
A conveyor belt scraper design featuring a modular shaft assembly with helical engagement formations and a locking block system that allows for secure attachment and easy removal, enabling the scraper to deform elastically under load and facilitating maintenance without requiring conveyor belt shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If resilient zones are added to scraper blades to allow elastic deformation, then the scraper can withstand larger loads, but the blade still suffers from damage due to limited elastic deformability
Solution Approach 1:
The scraper blade is divided into multiple resilient zones along its length, each capable of independent elastic deformation. This segmentation allows the blade to distribute and absorb large loads across multiple zones, preventing damage at any single point while maintaining overall structural integrity and extending blade life.
2Reliability
If scraper blades are replaced when damaged, then cleaning performance is restored, but the conveyor belt must be stopped causing process downtime
Solution Approach 1:
The scraper blade incorporates resilient zones that automatically absorb shocks and deform elastically when encountering obstructions or large loads, protecting the blade from damage without requiring external intervention. This self-protecting mechanism extends blade life and eliminates the need for frequent stoppages to replace damaged blades, maintaining continuous production.
3Ease of repair
If technician work is required to replace scraper blades, then blade replacement can be performed, but safety hazards arise from working in unstable and slippery zones
Solution Approach 1:
The resilient zones provide automatic shock absorption and damage prevention, eliminating the need for manual blade replacement in hazardous zones. The blade protects itself through elastic deformation, removing technicians from unsafe working environments while maintaining cleaning functionality.
4Device complexity
If traditional rigid scraper blades are used, then the structure is simple, but the blades are destroyed or damaged by coal obstructions
Solution Approach 1:
The blade structure is segmented into multiple resilient zones that can independently deform elastically when encountering coal obstructions. This segmentation maintains relative structural simplicity while dramatically improving durability by distributing impact forces across multiple zones rather than concentrating stress at a single point.
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 design extends the lifespan of scraper blades by absorbing large loads and simplifies maintenance, reducing downtime and safety risks by allowing for quick and safe replacement without halting coal processing or transportation.
Implementation Method 1
The first engagement formation and the second engagement formation are corresponding male and female members which are engaged or disengaged by rotation of the scraper relative to the shaft assembly about a longitudinal axis of the shaft assembly
Implementation Method 2
some scraper blades are manufactured with resilient zones intended to elastically deform when the metal scraper tip encounters an obstruction
Data Source
AI summary
A conveyor belt scraper comprising a body having a proximal mounting base and a distal scraping tip, the mounting base includes a first engagement formation configured to engage with a second engagement formation located on a shaft assembly, wherein the first engagement formation and the second engagement formation are corresponding male and female members which are engaged or disengaged by rotation of the scraper relative to the shaft assembly about a longitudinal axis of the shaft assembly.