Turbo Compressor Coupling Balance Adjustment for High-Speed Rotation
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Solution Overview
Problem
Conventional turbo-type fluid machines face challenges in achieving balanced operation due to imbalances in the weight distribution between the shaft, coupling portion, and impeller, which can lead to reduced maximum rotation speed and narrowed operation range.
Innovation Solution
A balance adjustment mechanism is integrated into the coupling portion that connects the shaft and impeller, allowing for separate adjustment of weights through holes and weight components, reducing the overall weight imbalance and enabling high-speed rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If weights are attached to adjust balance in conventional turbo compressors, then balance can be adjusted, but the structure becomes complex and adjustment is difficult
Solution Approach 1:
The balance adjustment mechanism is merged with the coupling portion structure. The coupling portion integrates both the coupling function and balance adjustment function, eliminating separate balance adjustment components and simplifying the overall structure while maintaining balance adjustment capability.
Solution Approach 2:
The coupling portion serves multiple functions: it couples the shaft and impeller together while simultaneously providing balance adjustment capability through integrated holes and weight attachment features. This multi-functionality reduces the need for separate dedicated balance adjustment mechanisms.
2Adaptability or versatility
If the coupling portion is designed to allow balance adjustment, then operational range is improved, but manufacturing complexity increases
Solution Approach 1:
The coupling portion is designed with segmented features including multiple holes at different positions and weight attachment components. This segmentation allows flexible balance adjustment by selecting and combining different weight configurations, expanding operational range while keeping each individual manufacturing step relatively simple.
Solution Approach 2:
The design allows changing balance parameters by attaching weights at different positions and in different quantities. This parameter variability enables adaptation to different operational requirements without redesigning the entire coupling portion, maintaining ease of manufacture while improving versatility.
Data Source
AI summary
A turbo-type fluid machine includes a shaft configured to be rotationally driven, a compression mechanism having an impeller, and a coupling portion coupling an end portion of the shaft and the impeller with each other. The coupling portion is provided with a balance adjustment mechanism.