Linear Magnetic Coupling for Heavy-Load Release Control
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Solution Overview
Problem
Magnetic coupling devices face challenges in efficiently coupling and de-coupling ferromagnetic workpieces due to limitations in magnetic field control and actuation mechanisms, particularly in linear motion, which affects their ability to handle and transport heavy loads effectively.
Innovation Solution
A magnetic coupling device with a linearly translatable magnetic platter and a housing that includes a ferrous piece and a magnetic shunt, allowing for controlled magnetic field changes between 'on' and 'off' states, enabling efficient coupling and de-coupling of ferromagnetic workpieces by adjusting the magnetic platter's position along a defined axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the magnetic platter is positioned close to the ferrous piece to enhance magnetic coupling, then the magnetic field strength increases, but the device cannot be de-actuated effectively
Solution Approach 1:
The magnetic platter is segmented into multiple permanent magnet portions with alternating polarity, creating discrete magnetic circuits that can be independently controlled through positioning, allowing selective coupling and de-coupling of different workpiece regions
Solution Approach 2:
The magnetic platter is made dynamically positionable along the housing axis between different states (first state for coupling, second state for de-coupling), enabling the device to switch between magnetically coupled and decoupled conditions through linear translation
2Ease of operation
If a linearly translatable magnetic platter is used to enable de-coupling, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The patent replaces complex multi-component actuation mechanisms with a simplified linear translation system, where the magnetic platter moves directly along the housing axis without requiring intermediate mechanical linkages, reducing overall device complexity
Solution Approach 2:
The linearly translatable magnetic platter serves multiple functions: it enables both coupling and de-coupling operations, supports workpieces of varying thicknesses through position adjustment, and maintains magnetic field control across different operational states, reducing the need for separate mechanisms
3Force
If the magnetic platter is designed for heavy load handling, then the holding force increases, but the actuation energy requirement increases
Solution Approach 1:
The actuation system uses periodic linear translation of the magnetic platter between coupled and decoupled states, enabling controlled energy application during actuation while maintaining holding force during the stationary coupled state, reducing overall energy consumption compared to continuous actuation
Solution Approach 2:
The patent extracts the actuation function to a separate linear translation mechanism independent of the magnetic field generation, allowing the magnetic platter to maintain heavy load holding capability through permanent magnets while the actuation energy is supplied separately through controlled positional 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 device achieves enhanced magnetic flux transfer and holding force, allowing for the efficient lifting and handling of heavier ferromagnetic workpieces, with improved safety and energy efficiency in actuation, and the ability to de-stack different thicknesses of workpieces without replacing the magnetic platter.
Implementation Method 1
the magnetic platter being arranged adjacent to the ferrous piece such that the magnetic coupling device establishes a first magnetic circuit through the ferrous piece and provides a first magnetic field at a workpiece contact interface
Implementation Method 2
A magnetic coupling device with a linearly translatable magnetic platter and a housing that includes a ferrous piece
Implementation Method 3
enhanced magnetic flux transfer and holding force
Data Source
AI summary
The present disclosure relates to magnetic coupling devices. More specifically, the present disclosure relates to magnetic coupling devices configured to be linearly actuated and de-actuated.