Rotary Seal Testing Apparatus Friction Measurement
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Solution Overview
Problem
Conventional robotic charging solutions for autonomous vehicles, which rely on electromagnetic braking mechanisms, are costly and complex, making them difficult to deploy at scale effectively.
Innovation Solution
A rotary-seal testing apparatus is developed to measure frictional characteristics of seals, allowing for the precise evaluation of torque differences before and after seal placement, enabling the testing of various seal sizes and material compositions at a lower cost and with greater convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electromagnetic braking mechanisms are used for robotic charging, then vehicle-charger coupling is facilitated, but the system becomes costly and complex
Solution Approach 1:
The patent replaces electromagnetic braking mechanisms with a purely mechanical rotary seal-based coupling system. The rotary seal provides friction-based engagement between the vehicle and charger, eliminating the need for complex electromagnetic actuators and sensors while maintaining reliable coupling through mechanical friction and contact forces.
2Reliability
If electromagnetic braking mechanisms are used for robotic charging, then vehicle-charger coupling is facilitated, but maintenance difficulty increases
Solution Approach 1:
By substituting electromagnetic components with simple mechanical elements like rotary seals, springs, and friction surfaces, the system becomes significantly easier to maintain. Mechanical components can be visually inspected, manually adjusted, and replaced without requiring specialized diagnostic equipment or complex assembly procedures.
Solution Approach 2:
The rotary seal is designed as a simple, low-cost mechanical component that can be easily replaced when worn. This disposable approach to maintenance eliminates the need for complex repair procedures, as the seal can be quickly swapped out without affecting other system components.
3Productivity
If conventional robotic charging solutions are deployed, then autonomous vehicle charging is enabled, but deployment scalability is limited due to cost and complexity
Solution Approach 1:
The mechanical rotary seal system replaces complex electromagnetic braking mechanisms, dramatically reducing the cost and complexity of each charging station. This enables deployment at scale across multiple locations, as the simplified system requires fewer specialized components and less expensive infrastructure.
Solution Approach 2:
The rotary seal mechanism serves multiple functions: it provides both the coupling force to connect the vehicle and charger, and the friction-based braking mechanism to control rotation. This multi-functionality reduces the number of separate components needed, further simplifying the system for scalable deployment.
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 solution provides an inexpensive and efficient means to test rotary seals, facilitating the deployment of cost-effective charging solutions for autonomous vehicles by accurately measuring frictional attributes, thereby improving the maintenance and scalability of robotic charging systems.
Implementation Method 1
a rotary seal interface configured to interface with an exterior surface of the rotator and rotate with the rotator, wherein the rotary seal interface is configured to frictionally engage with the housing
Data Source
AI summary
The disclosed technology provides solutions for measuring seal characteristics and in particular, for precisely measuring frictional characteristics of a rotary seal. In some aspects, a seal testing apparatus of the disclosed technology can include a motor coupled to a proximal end of a shaft, a rotator coupled to a distal end of the shaft, and a housing disposed around an exterior surface of the rotator, wherein the housing is configured to removably receive at least one seal. In some aspects the seal-testing apparatus can further include a torque transducer coupled to the shaft, wherein the torque transducer is configured to measure a torque output of the motor.