Single Threaded Rod Drive for Turbomachine Rectifier Vanes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive mechanisms for turbomachine rectifier vane blade orientation adjustment suffer from large dimensions and numerous components, leading to reduced system accuracy due to cumulative gaps and deformations.
Innovation Solution
A drive mechanism utilizing a single threaded rod and levers with varying pitches and dimensions to simultaneously drive multiple adjusting members, allowing for differential displacement speeds and optimized turbomachine dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single shaft is used to drive the blades of two rectifier vanes, then the number of components is reduced, but the dimensions become particularly large
Solution Approach 1:
The single shaft is segmented into multiple threaded rods, each associated with a specific rectifier vane. This segmentation allows each rod to be compact and tailored to its specific function, avoiding the large dimensions of a single long shaft while maintaining the benefit of reduced component count compared to fully independent control units.
2Adaptability or versatility
If control units are used to adapt to all turbomachine sizes, then all sizes can be accommodated, but the number of components increases leading to reduced system accuracy due to cumulative gaps and deformations
Solution Approach 1:
Each threaded rod is designed with local quality features including variable pitch along its length and different pitch values for different rods. This allows each rod to be optimized for its specific position and function in the turbomachine, maintaining high precision while adapting to different turbomachine sizes without requiring numerous standardized components.
3Volume of moving object
If a single threaded rod with levers is used to drive multiple adjusting members, then dimensions and number of parts are reduced, but differential displacement speeds must be achieved
Solution Approach 1:
The pitch parameter of the threaded rod is varied along its length and between different rods to achieve differential displacement speeds. By changing the pitch parameter, the system can control the relative movement speeds of different adjusting members while using a compact single-rod mechanism, thus resolving the contradiction between reduced dimensions and differential speed requirements.
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
This solution reduces the number of components and maintains system accuracy by enabling simultaneous and differential blade orientation adjustments with reduced dimensions, optimizing turbomachine performance.
Implementation Method 1
the rotation of the threaded rod causes a simultaneous rotation of the levers associated with the adjusting members
Data Source
AI summary
A drive mechanism is provided for driving at least two adjusting members used to adjust the orientation of the blades of a turbomachine rectifier vane associated therewith, where the drive mechanism simultaneously drives the displacement of at least two adjusting members in the turbomachine. A single threaded rod drives several levers, each lever being associated with an adjusting member. A first part of each lever engages with the threaded rod and one end of an arm of the lever is connected to the adjusting member associated therewith so that the rotation of the threaded rod causes a simultaneous rotation of the levers associated with the adjusting members.