A kind of installation method of flywheel energy storage rotor

Abstract

The invention discloses an installation method of a flywheel energy storage rotor. The installation method is characterized in that an outer flange of a disc-shaped body of a first hub made of spring steels can be bent to form an abutting part, and the disc-shaped body of the first hub is inclined from the middle part to the edge with respect to a vertical plane vertical to a rotating shaft, and is inclined toward one side of the abutting part; the bent position is provided with a stress relieving groove; the first hub is disposed on the rotating shaft, and is rotated synchronously under the driving of the rotating shaft; the first hub and the rotating shaft are disposed in a barrel-shaped outer wheel, and the outer wall of the abutting part of the first hub is tightly cooperated with the inner wall of the outer wheel, and therefore the outer wheel can be rotated under the driving of the first hub. The installation method of the flywheel energy storage rotor is advantageous in that the technical problem of the conventional flywheel energy storage mechanisms of reduction of the pretightening force between the flywheel hub and the outer wheel under the high-speed rotating condition can be overcome, and the installation method of the flywheel energy storage rotor is provided, and then the pretightening force of the combination between the flywheel hub and the outer wheel in the high-speed rotating state can be maintained.

Description

technical field [0001] The invention relates to the field of flywheel energy storage. Specifically, it is a method for installing a flywheel energy storage rotor. Background technique [0002] Flywheel energy storage is to store energy by converting electrical energy, wind energy, solar energy and other energy into mechanical energy, that is, the high-speed rotation of the flywheel. When energy is needed, the kinetic energy of the flywheel is converted into electrical energy output. Flywheel energy storage stores energy through motion, does not require any chemical substances and chemical changes, and can be charged and discharged infinitely. It is not only environmentally friendly but also breaks through the limitations of chemical batteries, thus attracting high attention. [0003] The energy storage formula of the flywheel is: Where J is the moment of inertia of the flywheel, and ω is the angular velocity of the flywheel rotation. The higher the rotational angular vel...

AI Technical Summary

Problems solved by technology

This will inevitably lead to a decrease in the pre-tightening force combined between the outer wheel and the hub, resulting in a decrease in the rotational force transmitted from the hub to the outer wheel, increasing energy consumption, and in severe cases, slippage between the hub and the outer wheel will occur, or even fall off

Therefore, the current split flywheel still limits the speed increase of the flywheel, thereby limiting the energy storage density of the flywheel

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