Elastic Coupling Wear Sensing with Embedded Switching Element
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Solution Overview
Problem
Current rotationally elastic couplings face challenges in accurately detecting wear, which can lead to excessive play and affect the functionality of the drive system, requiring complex methods like optical inspection or stroboscope sensors.
Innovation Solution
Integration of a switching element and transmitter within the elastomer, allowing for active and passive wear monitoring through radio signals, visible light, or audible signals, with the transmitter being embedded in the elastomer and powered by a battery, enabling contactless communication of wear limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical inspection or stroboscope sensors are used to detect wear, then wear detection capability is provided, but device complexity and external measurement technology requirements increase
Solution Approach 1:
The patent combines the wear detection functionality directly into the elastomer by embedding a conductive element and transmitter within the elastomer material itself. This integration eliminates the need for separate external measurement systems, as the detection capability is merged with the component being monitored, thereby reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The elastomer incorporates its own wear detection and communication system through the embedded conductive element and transmitter. The system performs self-monitoring and self-reporting of wear status, eliminating dependence on external inspection equipment or complex measurement technology, thus simplifying the overall system while preserving detection accuracy.
2Measurement precision
If a circuit is led through the elastomer component for wear detection, then wear impairment can be detected, but manufacturing complexity and potential reliability issues increase
Solution Approach 1:
Instead of implementing a complete circuit through the entire elastomer component, the patent uses a localized conductive element embedded only in the specific region where wear occurs. This approach provides sufficient wear detection capability while significantly simplifying the manufacturing process, as it avoids the complexity of routing and integrating extensive circuits throughout the elastomer.
Solution Approach 2:
The conductive element is designed as a simple, inexpensive component that can be easily embedded in the elastomer during manufacturing. This simplified approach prioritizes ease of manufacture and reliability over complex circuit designs, using a straightforward conductive path that is sufficient for wear detection without requiring elaborate circuitry.
3Reliability
If switching element and transmitter are integrated in the elastomer, then wear detection reliability is enhanced, but manufacturing precision requirements increase
Solution Approach 1:
The conductive element and transmitter are embedded in the elastomer during the elastomer manufacturing process itself, before the elastomer is installed in the coupling. This preliminary integration ensures proper positioning and secure embedding, reducing the risk of misalignment or loosening during operation, thereby enhancing reliability without requiring extremely high precision assembly steps later.
Solution Approach 2:
The conductive element and transmitter are nested within the elastomer structure, with the elastomer serving as both the functional component and the housing for the detection system. This nesting approach protects the sensitive electronic components while maintaining a compact design, improving reliability by shielding components from external damage while avoiding the need for separate protective housings that would complicate manufacturing.
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
Enhances wear detection reliability and simplifies maintenance by providing a binary signal for wear state detection, reducing energy consumption and eliminating the need for external measurement technology, thus ensuring secure and reliable operation.
Implementation Method 1
The transmitter is arranged, in particular embedded and/or enclosed, at least partially in the first elastomer of the elastomers... powered by a battery
Implementation Method 2
The transmitter can in this case emit electromagnetic waves in a frequency range provided for radio signals
Implementation Method 3
Rotationally elastic couplings use elastomers for damping the torques and compensating for offsets of the connected axes of rotation
Data Source
AI summary
A rotationally elastic coupling has a first coupling part with elastomers. The elastomers are arranged in the first coupling part in such a way that the elastomers serve to transfer a force onto a second coupling part when the first coupling part and the second coupling part are connected to one another. In order to improve the identification of wear, the rotationally elastic coupling has a switching element that is arranged at least in part in a first elastomer of the elastomers. A method is provided for producing a first elastomer for a rotationally elastic coupling of this kind. A method is provided for identifying a wear state for a rotationally elastic coupling of this kind.