Torque Transmission Adapter for Mixed Friction and Tooth Coupling
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Solution Overview
Problem
Conventional torque transmission methods between rotatable components in turbomachines, such as precision friction connections and radial tooth joints, face challenges including assembly complexity, safety risks due to axial forces, and inefficiencies in shaft diameter sizing, which affect gas seal performance and increase assembly time.
Innovation Solution
An adapter with distinct torque transmission features at each end, utilizing a precision friction connection on one side and a radial tooth joint on the other, allows for adjustable axial length without shimming the housing, reducing assembly risks and hardware requirements, and acting as a torque limiting coupling to minimize damage during failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a precision friction connection is used for torque transmission, then torque transmission efficiency is improved, but assembly complexity and safety risks increase due to axial forces
Solution Approach 1:
The adapter acts as an intermediary component between the first and second rotatable components. It features a first torque transmission feature (precision friction connection) at one end and a second torque transmission feature (radial tooth joint) at the other end, allowing the adapter to mediate torque transmission while isolating the harmful axial forces to one side only.
2Ease of manufacture
If a radial tooth joint is used for torque transmission, then assembly simplicity is improved, but torque transmission efficiency and load capacity deteriorate
Solution Approach 1:
The adapter employs different torque transmission features at its two ends: a precision friction connection at the first end for high torque transmission efficiency, and a radial tooth joint at the second end for assembly simplicity. This local differentiation allows each interface to be optimized for its specific function.
3Device complexity
If direct coupling between rotatable components is used, then device complexity is reduced, but adaptability and adjustment capability deteriorate
Solution Approach 1:
The adapter introduces adjustability into the system by allowing the axial position of the first rotatable component to be adjusted relative to the second rotatable component. This dynamic adjustment capability enables optimization of gas seal clearance and torque transmission performance without increasing overall device complexity.
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 adapter simplifies assembly, enhances safety by reducing handling of large components, and provides a less destructive failure mode, while maintaining efficient torque transmission and balance in turbomachines, allowing for retrofitting and improved high-speed performance.
Implementation Method 1
the first torque transmission feature is a precision friction connection
Data Source
AI summary
An adapter for torque transmission between a first rotatable component and a second rotatable component is provided. The adapter includes a first torque transmission feature configured to transmit torque between the adapter and the first rotatable component, and a second torque transmission feature configured to transmit torque between the adapter and the second rotatable component, the second torque transmission feature being different than the first torque transmission feature.