Multi-Layer Plain Bearing Coil Forming for Stronger Layer Bonding

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Solution Overview

Problem

The existing methods for producing multi-layer plain bearings are complex and expensive, necessitating a simplified approach for their manufacturing.

Innovation Solution

A method involving a magnetic force generator with a coil arranged circumferentially around the bearing body to deform and connect the bearing body to a carrier body, forming a non-positive or positive connection, utilizing cylindrical geometries and surface structuring like knurling to enhance durability and connection strength.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional methods are used to produce multi-layer plain bearings, then the connection between carrier body and bearing body can be achieved, but the manufacturing process becomes complex and expensive

Engineering Contradiction:
Improveconnection strengthVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical pressing systems with a magnetic field-based system. A coil generates a magnetic field that acts on the bearing body containing ferromagnetic particles, eliminating the need for complex mechanical pressing apparatus while achieving firm connection between the carrier body and bearing body.

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

Solution Approach 2:

The patent changes the physical state and distribution of ferromagnetic particles within the bearing body by applying a magnetic field. The magnetic field causes the particles to align and concentrate in specific regions, fundamentally altering the internal structure and connection properties of the bearing body without mechanical intervention.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If direct contact pressing is used to connect bearing body to carrier body, then connection can be formed, but the process requires complex mechanical systems and high cost

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidconnection durability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent substitutes mechanical pressing with electromagnetic interaction. The coil generates a magnetic field that penetrates the bearing body and interacts with ferromagnetic particles, creating strong internal forces that secure the connection without any mechanical contact or complex pressing mechanisms.

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

Solution Approach 2:

The magnetic field acts as an intermediary between the coil and the bearing body. Instead of direct mechanical contact, the magnetic field transmits force through the bearing body material, particularly through the ferromagnetic particles, to achieve secure connection to the carrier body.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Strength

If bearing body is deformed to create connection, then firm bond is achieved, but traditional deformation methods require complex equipment

Engineering Contradiction:
Improveconnection strengthVSAvoiddeformation equipment complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent replaces mechanical deformation equipment with an electromagnetic system. The magnetic field generated by the coil induces forces within the ferromagnetic particles of the bearing body, causing internal deformation and reconfiguration that creates strong connection without external mechanical deformation apparatus.

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

Solution Approach 2:

The magnetic field changes the spatial distribution and arrangement of ferromagnetic particles within the bearing body. This parameter change in particle configuration creates internal structural deformation that enhances connection strength, replacing the need for external mechanical deformation processes.

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

This method enables a durable, firm connection between the carrier body and the bearing body without direct contact, achieving a strong and long-lasting bond while simplifying the manufacturing process, particularly suitable for applications like wind turbine components.

Implementation Method 1

a magnetic force generator (16), in particular a coil (17), which can be supplied with current and is designed to apply a magnetic force to the bearing body (3)

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Implementation Method 2

Deforming the bearing body by applying a magnetic force to the bearing body by means of a magnetic force generator, wherein the bearing body is pressed against the carrier body by means of the magnetic force generator

Methodology Applied
Scientific EffectMagnetic force: Magnetic Field

Data Source

PatentEP3976982B1Method for producing a multi-layer plain bearing, and plain bearing production device
Publication Date: 2023.05.24 MIBA GLEITLAGER AUSTRIA GMBH
  • EP3976982B1 patent drawingFigure 1~3
  • EP3976982B1 patent drawingFigure 4a~4b
  • EP3976982B1 patent drawingFigure 5~6

AI summary

The invention relates to a method for producing a multi-layer plain bearing (1), comprising the method steps: - providing a carrier body (2); - providing a bearing body (3); - applying the bearing body (3) to the carrier body (2), wherein a carrier body connecting surface (5) faces toward a bearing body connecting surface (6); - deforming the bearing body (3) by applying a magnetic force to the bearing body (3) means of a magnetic force generator (16), wherein the bearing body (3) is pressed against the carrier body (2) by means of the magnetic force generator (16) and forms a non-positively locking and/or positively locking and/or cohesive connection with said carrier body (2).