Rotor Blade Pin Removal Drilling Platform
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Solution Overview
Problem
Current drilling tools for removing locking pins from rotor blades are prone to bending and misalignment, causing damage and requiring large, cumbersome machines that cannot align with non-parallel pin axes, making the process inefficient and difficult to set up.
Innovation Solution
A stable drilling platform with a centering member and securing mechanism, such as couplers, ensures proper alignment and stability, allowing a drilling component to drill along the centerline of the pin, reducing the risk of damage and facilitating efficient pin removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If long and thin drilling tools are used to remove locking pins from rotor blades, then the tools can reach the pins, but the support arm bends and the drill misaligns with the pin axis
Solution Approach 1:
The drilling system is divided into multiple segments: a support arm with intermediate support points, allowing the drill tool to be broken into sections rather than requiring a single long tool. This segmentation prevents bending while maintaining reach to the locking pins.
Solution Approach 2:
An intermediary alignment mechanism is introduced between the drill tool and the locking pin. This includes alignment bores, alignment pins, and adjustable positioning systems that act as mediators to ensure precise alignment even when the drill tool is long and thin.
2Manufacturing precision
If large machines are used to position and support the drilling tool, then alignment is possible, but the machine becomes cumbersome to setup and position
Solution Approach 1:
The support arm and alignment mechanisms are designed to be adjustable and reconfigurable rather than fixed. This allows the system to adapt to different rotor blade configurations and pin locations, reducing the need for large, fixed positioning machines while maintaining alignment precision.
Solution Approach 2:
The drilling system incorporates universal alignment features and adjustable positioning components that can accommodate various rotor blade sizes and pin orientations. This multi-functionality eliminates the need for multiple specialized machines, making setup easier and more versatile.
3Manufacturing precision
If current drilling machines are used, then parallel pin alignment is possible, but non-parallel pin axes cannot be aligned
Solution Approach 1:
The alignment system includes adjustable components such as angled alignment bores, rotatable positioning mechanisms, and flexible support arms that can be configured for non-parallel pin axes. This dynamic adjustability allows the same machine to handle both parallel and non-parallel orientations.
Solution Approach 2:
The design incorporates asymmetric alignment features and adjustable angular positioning capabilities that allow the drill to align with pin axes at various angles relative to the rotor axis, rather than being constrained to parallel alignment only.
Data Source
AI summary
Embodiments of the present disclosure provide systems, apparatus, and methods to remove a pin from a hole including a rotor blade pin from a rotor turbine.