Turbine Outer Guide Ring Holding Device for Riveting Support
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Solution Overview
Problem
The existing methods for riveting guide vanes to an inner guide ring or shroud in turbine systems often result in poor-quality joints due to lack of stable support, leading to potential warping of the outer guide ring under stress, especially when manual or pneumatic riveting is performed without proper positioning.
Innovation Solution
A holding device with a frame, adjustable support plate, and support elements like rollers that allow for precise positioning and fixation of the outer guide ring, enabling it to be securely held and supported during the riveting process, even outside the guide vane carrier or dummy, ensuring optimal alignment and force distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual or pneumatic riveting is performed without proper positioning, then the riveting process can be carried out flexibly, but the riveted joint quality deteriorates and the outer guide ring may warp under stress
Solution Approach 1:
The holding device is prepared in advance with support elements and positioning means before the riveting process begins. The outer guide ring is positioned and secured on the support elements, ensuring proper alignment and stability before riveting operations commence, thereby preventing warping and ensuring high-quality joints.
Solution Approach 2:
The holding device acts as an intermediary between the riveting process and the outer guide ring. It provides a stable platform with support elements that distribute forces evenly during riveting, preventing direct stress concentration on the guide ring that would cause warping, while maintaining operational flexibility.
2Manufacturing precision
If the outer guide ring is supported firmly during riveting, then warping is prevented and joint quality improves, but the device complexity increases
Solution Approach 1:
The holding device is divided into functional segments: support elements for bearing the guide ring, positioning means for alignment, and fixing mechanisms for securing. This modular segmentation allows each component to perform its specific function efficiently while keeping the overall device structure manageable and not excessively complex.
3Reliability
If the outer guide ring is positioned in the guide vane carrier or dummy, then support is provided, but the riveting cannot be performed outside these locations
Solution Approach 1:
The holding device is designed as a universal support system that can be used in various riveting locations, not limited to specific guide vane carriers or dummies. The support elements and positioning means provide stable support for the outer guide ring regardless of where the riveting operation is performed, thereby combining reliability with location flexibility.
Data Source
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AI summary
The invention relates to a holder device (4) for holding and positioning an outer guide ring (2) that has guide vanes (1) secured thereto, during a riveting process for installing an inner guide ring (3) on said guide vanes (1), and comprising a frame (6), a bearing plate (7) which is arranged on the frame (6) so as to be adjustable in a vertical direction, a support device (8) which is positioned on the rear side of the bearing plate (7) and defines a rear-side contact surface for the outer guide ring (2), a pair of bearing elements that are arranged on opposite sides of the bearing plate (7) in front of the rear-side contact surface of the support device (8), and a securing device (12) that is designed to hold an outer guide ring (2), positioned on the bearing plate (7), against said rear-side contact surface of the support device (8) and particularly to press it against same during a riveting process.