Pressure Ring Balancing Groove for Precise Rotor Adjustment
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Solution Overview
Problem
Existing methods for adjusting the balance of electric machine rotors, such as using balancing posts and spacers, are ineffective due to limitations in fixing positions and the introduction of shock during installation, leading to poor balance adjustment and potential damage.
Innovation Solution
A pressure ring for electric machine rotors is designed with an annular shell and balancing blocks distributed in an annular groove, allowing for adjustable rotor balance without the limitations of specific fixing positions and minimizing shock during installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If balancing posts and spacers are used to adjust rotor balance, then rotor balance can be adjusted, but the balancing post cannot be fixed at certain specific positions and the rotor is subjected to shock during installation
Solution Approach 1:
The balancing block is segmented into multiple parts that can be independently positioned and fixed within the annular groove, allowing precise balance adjustment at any position without compromising installation reliability
Solution Approach 2:
The annular groove acts as an intermediary structure between the balancing block and the rotor body, providing a dedicated pathway and positioning mechanism that enables shock-free installation while achieving precise balance adjustment
2Manufacturing precision
If balancing posts are fixed to pressure ring, then rotor balance can be adjusted, but the balancing post cannot be fixed at certain specific positions
Solution Approach 1:
The annular groove provides a dynamic positioning system where the balancing block can be placed at any angular position around the rotor circumference, enabling flexible adaptation to different balance correction requirements while maintaining high precision
Solution Approach 2:
The solution transitions from fixed radial positioning to angular positioning within the annular groove, adding rotational freedom as a new dimension for balance adjustment while maintaining precise radial control
Data Source
AI summary
A pressure ring for an electric machine rotor, an electric machine rotor, and an electric machine. The pressure ring comprises an annular shell and at least one balancing block. The annular shell comprises an annular flat surface and a columnar flat surface. An annular groove and at least one first fixing hole are provided on the annular flat surface.