Magnetic Wheel Inspection Device with Fluid Grooves

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Solution Overview

Problem

Current ultrasonic defect inspection methods for wheels require disassembly and immersion in fluid, making it difficult to perform comprehensive and safe on-line detection without separating the wheel from the locomotive, which is risky and inefficient.

Innovation Solution

A wheel defect inspection device with a main and lateral base forming an L-shaped configuration, equipped with magnetic modules for attachment, rolling modules to reduce friction, and ultrasonic probes with fluid grooves for fluid injection, allowing for magnetic attachment and continuous wheel circumference inspection without disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If ultrasonic defect inspection is performed by immersing the wheel in fluid, then detection precision is improved, but the wheel must be separated from the locomotive which reduces productivity and increases loss of time

Engineering Contradiction:
Improvedefect detection precisionVSAvoidinspection efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent introduces fluid injection grooves and injection holes as intermediary structures that deliver fluid directly to the inspection interface between the ultrasonic probe and wheel surface. This mediator system enables precise defect detection without requiring complete immersion or wheel separation, thus maintaining both detection precision and inspection efficiency

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical system of wheel separation and complete immersion with a fluid injection system that delivers fluid locally through grooves and holes. This substitution eliminates the need for complex mechanical positioning and wheel detachment while maintaining ultrasonic coupling for precise detection

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

2Measurement precision

If the wheel is separated from the locomotive for inspection, then measurement precision is improved, but ease of operation deteriorates and loss of time increases

Engineering Contradiction:
Improveoverall wheel inspection capabilityVSAvoidon-line detection capability
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The inspection device is designed to attach directly to the wheel using magnetic modules, and the fluid injection system serves itself by delivering fluid through integrated grooves and holes. This self-service design enables the device to perform comprehensive wheel inspection on-line without requiring wheel separation or complex external support systems

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent merges the ultrasonic probe, fluid injection system, and magnetic attachment modules into an integrated inspection device. This combination enables the device to attach to and inspect the wheel in place, merging the functions of attachment, fluid delivery, and defect detection into a single on-line system

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If magnetic modules are used to attach the base to the wheel, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveattachment capabilityVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical attachment systems with magnetic modules that use magnetic force for attachment. This substitution simplifies the attachment mechanism while maintaining strong bonding between the inspection device and wheel, reducing mechanical complexity without compromising ease of operation

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

4Ease of operation

If rolling modules are added to reduce friction, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvemobility on wheel surfaceVSAvoidmodule quantity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent introduces rolling modules that replace sliding friction with rolling friction, reducing the friction force between the inspection device and wheel surface. This mechanical substitution improves mobility and ease of operation during inspection while the modular design allows for controlled complexity

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

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

Enables safe and efficient on-line detection of wheel defects by reducing friction and maintaining contact with the wheel's surface, allowing for comprehensive inspection without separating the wheel, improving portability and operability.

Implementation Method 1

at least one magnetic module installed on the main base for attaching the main base onto the metal object under an action of a magnetic force

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Implementation Method 2

the at least one rolling module is configured to reduce a frictional force between the main base and the metal object

Methodology Applied
Scientific EffectRolling friction: Friction

Implementation Method 3

when being broadcast to an interface of the defect, an ultrasonic wave may be entirely or partially reflected, the reflected ultrasonic wave is received by a probe

Methodology Applied
Scientific EffectUltrasonic wave reflection: Ultrasound

Data Source

PatentEP3080576B1Devices and methods for inspecting a wheel
Publication Date: 2020.08.26 GENERAL ELECTRIC CO
  • EP3080576B1 patent drawingFigure 1
  • EP3080576B1 patent drawingFigure 2
  • EP3080576B1 patent drawingFigure 3

AI summary

The present invention discloses a inspection device for detecting a defect of a metal object, where the inspection device includes a main base, at least one main magnetic module, and a main inspection module. The at least one main magnetic module is installed on the main base, for attaching the main base onto the metal object under an action of a magnetic force. The main inspection module is installed on the main base, to detect at least one type of defect of the metal object. The present invention further discloses a wheel defect inspection method and a wheel defect inspection device. The metal object defect inspection device may implement automatic detection of a defect on a whole circumference of a wheel.