Magnetic Drive Transmission Using Segmented Magnets
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Solution Overview
Problem
Conventional non-contact magnetic transmission systems face challenges with high friction resistance and slow processing speeds due to increased size or number of magnets, which also affect machining tools and are not suitable for dust-free environments in electronic and semiconductor manufacturing.
Innovation Solution
A magnetic drive transmission method where a solid magnetic device and a ring-shaped magnetic device with the same polarity are attached to opposing surfaces of a work platform, creating a magnetic downstream field that changes thrust from repulsion to attraction, allowing the ring-shaped device to drive the solid device smoothly along the platform with reduced friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If the size of solid magnets is increased or more solid magnets are used to move larger workpieces, then the magnetic force is enhanced, but the friction resistance between the magnets and the transmission platform increases, lowering the speed of moving the workpiece
Solution Approach 1:
The invention divides the solid magnet into two separate components: a solid magnetic device attached to the top surface of the transmission platform and a ring-shaped magnetic device attached to the bottom surface. This segmentation allows the magnetic force to be maintained while reducing the contact area and friction resistance, as the ring-shaped device creates a magnetic field that attracts the solid magnetic device without requiring large contact surfaces.
Solution Approach 2:
The invention transitions from using solid magnets with large surface area contact to a configuration where the ring-shaped magnetic device creates a magnetic field that extends through the platform thickness. This dimensional change allows magnetic attraction to occur across the platform rather than through direct surface contact, reducing friction while maintaining force.
2Force
If the size or number of solid magnets is increased to move larger workpieces, then the magnetic force is enhanced, but the friction resistance increases, causing slow processing speed
Solution Approach 1:
By segmenting the magnet system into solid and ring-shaped components positioned on opposite surfaces of the platform, the invention achieves enhanced magnetic attraction for large workpieces while minimizing friction resistance. The ring-shaped device generates a magnetic field that penetrates the platform, creating strong attraction without the need for large contact areas that would increase friction and reduce productivity.
Solution Approach 2:
The invention replaces the conventional mechanical contact-based magnetic attraction system with a field-based system. Instead of relying on direct contact between large magnet surfaces, the ring-shaped magnetic device creates a magnetic field that acts through the platform material, substituting mechanical friction with magnetic field interaction and thereby improving processing efficiency.
3Extent of automation
If conventional conveyor systems are used for automatic transmission, then automation is achieved, but noise, dust or impacts are produced during delivery, lowering delivery efficiency in dust-free environments
Solution Approach 1:
The invention replaces conventional mechanical conveyor systems with a magnetic field-based transmission system. The ring-shaped magnetic device and solid magnetic device create magnetic attraction and repulsion forces that move the workpiece without physical contact between moving components, eliminating noise, dust generation, and impacts while maintaining automatic transmission capability for dust-free environments.
Solution Approach 2:
The transmission platform acts as an intermediary medium that transmits magnetic forces from the ring-shaped magnetic device on the bottom surface to the solid magnetic device on the top surface. This intermediary allows automatic transmission to occur through the platform material without direct contact between the magnetic devices, eliminating harmful factors like noise and dust while maintaining automation.
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 significantly reduces friction resistance and enhances processing speed, enabling efficient non-contact transmission of workpieces in dust-free environments without affecting machining tools, as demonstrated by test results showing lower electrostatic friction and improved magnetic attraction forces.
Implementation Method 1
a solid magnetic device and a ring-shaped magnetic device are attached with the same polarity onto the opposing top and bottom surfaces of a work platform to cause generation of a magnetic downstream
Implementation Method 2
causing a change of the magnetic thrust between the solid magnetic device and the ring-shaped magnetic device into magnetic attraction
Implementation Method 3
enabling efficient non-contact transmission of workpieces in dust-free environments without affecting machining tools
Data Source
AI summary
A magnetic drive transmission method includes the steps of: disposing solid magnetic device and ring-shaped magnetic device at top and bottom surfaces of work platform, while keeping the solid magnetic device in axial alignment with the hollow inner diameter of the ring-shaped magnetic device the solid magnetic device enters within the magnetic field lines of the ring-shaped magnetic device so as to create a magnetic field downstream between the solid magnetic device and the ring-shaped magnetic device that changes the thrust of the same polarity repulsion and to further cause the solid magnetic device and the ring-shaped magnetic device to attract each other in a balanced manner, and then using the ring-shaped magnetic device to drive the solid magnetic device in moving a predetermined workpiece along one surface of the work platform to a predetermined location.