Magnetic coupling transmission device using flywheel energy storage and working method

CN122292818APending Publication Date: 2026-06-26HUANENG LANZHOU THERMAL POWER CO LTD +2

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: HUANENG LANZHOU THERMAL POWER CO LTD
Filing Date: 2026-03-26
Publication Date: 2026-06-26

AI Technical Summary

Technical Problem

In existing electric flywheel energy storage systems, the length of the magnetic ring rotor shaft cannot be adjusted, resulting in poor adaptability, installation difficulties, vibration, noise, wear, and unstable transmission.

Method used

The segmented magnetic ring rotor shaft is used, and the shaft length can be adjusted and the axial displacement can be buffered through the sliding component and the axial compensation component. Combined with the fixing component, a stable connection is ensured. The reverse thread design of the coarse stud and the fine nut is used to achieve double locking, and the damping spring buffers the axial vibration.

Benefits of technology

It improves the adaptability and stability of the device, reduces component wear, simplifies maintenance procedures, enhances transmission accuracy and structural stability, and extends service life.

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Figure CN122292818A_ABST

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Abstract

This invention relates to the field of flywheel energy storage technology, and discloses a magnetic coupling transmission device and its working method utilizing flywheel energy storage. The device includes a magnetic coupling transmission device body, on which an adjusting magnetic ring rotor shaft is provided. The adjusting magnetic ring rotor shaft includes: a first shaft body disposed on the magnetic coupling transmission device body; a second shaft body, one end of which is connected to the first shaft body via a sliding component; a third shaft body, one end of which is connected to the second shaft body via an axial compensation component; and a mounting plate, one end of which is connected to the mounting plate via a fixing component. This invention uses a segmented adjusting magnetic ring rotor shaft, combined with a sliding component to achieve shaft length adjustment, combined with an axial compensation component to achieve axial displacement buffering, and combined with a fixing component to achieve convenient disassembly and assembly and stable connection. It has the effects of achieving length adaptation in different installation scenarios and improving the accuracy and stability during transmission.

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