Integrated Rotor Archimedean Screw Transport System

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Solution Overview

Problem

The presence of a central shaft and external motor in traditional Archimedean screw systems can hinder continuous product flow and cause deviation of transported products before they reach the motor system, necessitating a solution to reduce the overall bulk of the product transport system while maintaining power transfer.

Innovation Solution

The system employs a containment cylinder to support the Archimedean screw, allowing it to rotate with a motor rotor fixed on its outer surface, eliminating the central axis and enabling continuous product flow without motor interference, using a cylindrical stator and rotor assembly with asynchronous electric motor and transverse flux motor configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a central shaft and external motor are used to rotate the Archimedean screw, then the screw can be driven effectively, but the overall bulk of the transport system increases and continuous product flow is hindered

Engineering Contradiction:
Improvepower transfer to Archimedean screwVSAvoidoverall bulk of transport system
Core Design Contradiction:
PowerVSVolume of stationary object

Solution Approach 1:

The motor rotor is merged with the Archimedean screw by fixing the rotor directly onto the outer surface of the screw, eliminating the need for a separate central shaft and external motor assembly. This integration reduces the overall bulk while maintaining effective power transfer for driving the screw.

Inventive Principle:
Principle #5Merging (Combining)

2Power

If a central shaft and external motor are used, then the screw can be driven, but the motor system creates obstacles that prevent continuous product flow

Engineering Contradiction:
Improvepower transfer to Archimedean screwVSAvoidcontinuous product flow
Core Design Contradiction:
PowerVSProductivity

Solution Approach 1:

By merging the motor rotor with the Archimedean screw into a single integrated structure, the motor system no longer creates separate obstacles in the product flow path. The integrated design allows continuous product flow while maintaining effective power transfer to drive the screw.

Inventive Principle:
Principle #5Merging (Combining)

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 enhances product transport by preventing obstacles, allowing for variable transportation angles and material quantities, and enables efficient transfer of liquids and loose solids, with reduced size and power consumption, suitable for diverse applications including conveyor systems and heart pumps.

Implementation Method 1

a product transportation system using an Archimedean screw in which the movement is transferred to the Archimedean screw by a containment cylinder that supports the Archimedean screw and that rotates with it

Methodology Applied
Scientific EffectArchimedean screw: Archimedes Screw

Implementation Method 2

a cylindrical rotor 23 of an electric motor, for example of the asynchronous type, is fixedly attached; on the rotor 23 there is the characteristic cage 24. Figure 2 illustrates the system as a whole in which the Archimedean screw/rotor group is associated with a cylindrical stator 3, fitted onto said rotor, having recesses for the windings 31, obtaining the complete motor

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP1840026B1Product transport system using an archimedean screw
Publication Date: 2019.07.10 GORIZIANE GRP SPA
  • EP1840026B1 patent drawingFigure 1a~1b
  • EP1840026B1 patent drawingFigure 2a~2b
  • EP1840026B1 patent drawingFigure 3

AI summary

Electrical traction system comprising a volute group (2) formed from a volute (21) associated with a support cylinder (22), a cylindrical rotor (23) of an electric motor fixedly attached onto the outer surface of the volute group and a cylindrical stator (3) fitted onto the outside of said rotor.