Vacuum Notch Engagement Mechanism for Frictionless Torque Transfer
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Solution Overview
Problem
Conventional vacuum systems, particularly in ultra-high vacuum environments, face challenges with friction and lubrication issues due to the incompatibility of organic substances at low base pressures and high temperatures, leading to short service life and contamination problems with traditional bearing systems.
Innovation Solution
A vacuum system utilizing notch-based engagement parts for low-friction and lubricant-free motion transmission, power transmission, and torque transmission, which allows for rotary, pivoting, and quasi-linear movements without the need for shafts or bearings, using tapered and angled designs to minimize friction and prevent contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional bearing systems are used in vacuum systems, then motion transmission is enabled, but friction increases and service life decreases due to lubrication issues at low base pressures and high temperatures
Solution Approach 1:
The patent removes traditional bearings and lubricants from the vacuum system by using a magnetic coupling mechanism that transmits torque through magnetic fields across a gap, eliminating mechanical contact and the need for lubrication in the vacuum environment
Solution Approach 2:
The patent replaces mechanical bearing systems with a magnetic field-based coupling system where magnets on the drive shaft interact with magnets on the driven component through a magnetic field, substituting mechanical friction with non-contact magnetic force transmission
2Reliability
If traditional bearing systems are used in vacuum systems, then motion transmission is enabled, but contamination occurs due to organic lubricants at low base pressures
Solution Approach 1:
The patent extracts and removes all organic lubricants and bearing materials from the vacuum chamber by using magnetic fields to transmit torque through a vacuum-tight barrier, eliminating the source of contamination
Solution Approach 2:
The patent introduces a magnetic field as an intermediary that can transmit torque through the vacuum environment and through vacuum window barriers without requiring physical contact or organic materials that would outgas or contaminate the vacuum
3Ease of operation
If shafts and bearings are used for motion transmission, then movement is enabled, but device complexity increases
Solution Approach 1:
The patent merges the functions of shafts, bearings, and lubrication systems into a single magnetic coupling mechanism that accomplishes torque transmission through non-contact magnetic fields, simplifying the overall device structure
Solution Approach 2:
The patent substitutes complex mechanical shaft and bearing assemblies with a simpler magnetic coupling system where opposing magnets create rotational motion through magnetic attraction and repulsion forces across a small gap
Data Source
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AI summary
The invention relates to a device for low-friction movement transfer, torque transfer, power transfer and/or movement enabling, in particular for forming a joint, a transmission, a bearing and/or a guide which is suitable for use in a vacuum. The device according to the invention comprises at least one notch (10) which has a notch base (11) and at least one engaging part (20') which has a face region (21'), wherein the notch base (11) and the face region (21') are designed for operative movable interaction with each other.