Adjustable Guide Vane Fixing Device with Modular Clamping
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Solution Overview
Problem
Existing methods for fixing the position of adjustable guide vanes in turbomachines are often complex and require high precision, leading to increased manufacturing and maintenance costs due to stringent positional requirements.
Innovation Solution
A device comprising a support arm and clamping tools with adjustable retaining elements and clamping heads that can grip and fix the synchronizing rings of adjustable guide vanes, allowing for flexible positioning and large tolerances, reducing the need for precise alignment and manufacturing precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional fixing methods are used for adjustable guide vanes, then the position can be fixed, but the manufacturing precision requirements are high and the device complexity increases
Solution Approach 1:
The fixing device is segmented into modular components: a support arm with multiple mounting positions, separate clamping tools, and adjustable retaining elements. This segmentation allows each component to be manufactured independently with standard tolerances, eliminating the need for high-precision machining of the entire assembly while maintaining functional integrity.
Solution Approach 2:
The support arm is designed with multiple mounting positions that can accommodate different clamping tool configurations. The same support arm structure can fix multiple guide vane rows at different positions, providing universal functionality. This multi-functionality reduces the need for multiple specialized components, thereby reducing overall device complexity while maintaining positioning capability.
2Reliability
If high precision alignment is required for clamping heads and synchronizing rings, then the fixing is reliable, but the manufacturing cost and assembly time increase
Solution Approach 1:
The retaining element incorporates adjustable parameters that allow the clamping head position to be varied along the support arm. This adjustability enables the system to accommodate position tolerances and misalignments without compromising fixing reliability. The adjustable mechanism absorbs dimensional variations, eliminating the need for high-precision pre-alignment during assembly.
Solution Approach 2:
The clamping tool design includes self-aligning features where the clamping head automatically adjusts to engage the synchronizing ring within a tolerance range. The retaining element's adjustment mechanism allows operators to quickly compensate for positional variations without requiring precise pre-positioning, enabling the system to self-correct alignment issues during assembly.
3Adaptability or versatility
If multiple fixing points are used on the support arm, then the positioning flexibility increases, but the device complexity increases
Solution Approach 1:
The support arm incorporates movable or adjustable mounting positions along its length, allowing the fixing points to be dynamically repositioned according to the specific application requirements. This dynamic adjustability provides positioning flexibility for different guide vane configurations without requiring multiple fixed mounting structures, thereby avoiding increased device complexity.
Data Source
AI summary
A device for fixing the position of adjustable vane rows of a turbomachine is provided. The device includes a support arm and at least one clamping tool. The at least one clamping tool is attached to the support arm. The at least one clamping tool includes a clamping head and a retaining element. The retaining element connects the clamping head to the support arm.