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Energy-storing flywheel rotor loop manufactured by winding steel wires

An energy storage flywheel and steel wire winding technology, which is applied in the direction of flywheel, mechanical energy control, mechanical equipment, etc., can solve problems such as insufficient, deformation and coordination of hub strength

Inactive Publication Date: 2013-12-11
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steel wire prestressed winding structure is adopted, and the steel wire wound rotor hub and the composite material ring sleeve are assembled into a flywheel rotor with interference fit, which ingeniously avoids the problems of deformation coordination between the hub and the composite material layer and insufficient strength of the hub

Method used

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  • Energy-storing flywheel rotor loop manufactured by winding steel wires
  • Energy-storing flywheel rotor loop manufactured by winding steel wires

Examples

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Comparison scheme
Effect test

example 1

[0017] like figure 1 , 2 As shown, the flywheel rotor described in this example is disc-shaped composed of a metal matrix hub 1, a steel wire prestressed winding layer 2 and a composite material ring 4, and the center of which is a bearing hole 3 for connecting with the flywheel. When in use, it is only necessary to install the rotor manufactured according to the above structure on the bearing of the flywheel through the bearing hole 3 .

[0018] The metal base hub 1 can be made of ultra-high-strength steel, titanium alloy or high-strength aluminum alloy in the prior art, and the high-strength steel wire is wound on the metal hub base under normal stress by a winding machine. In the winding process, in order to avoid the compression deformation of the metal hub base due to the winding tension of the outer steel wire, which will cause the tension reduction of the inner steel wire and the relaxation of the steel wire winding layer, a variable tension winding process with monoto...

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Abstract

The invention discloses an energy-storing flywheel rotor loop manufactured by winding steel wires, and belongs to a flywheel energy-storing component. By adopting a steel wire winding prestress technology and a composite material fiber filament winding technology, a rotor hub and a composite material loop are in interference fit to assemble a flywheel rotor for solving the problems of insufficient rigidity of a hub material and the compatibility of deformation between the hub and a composite material layer. The rotor hub comprises a metal hub matrix and a steel wire prestress winding layer, the metal hub matrix is disc-shaped or cylindrical, the metal hub matrix and the steel wire pre-stress winding layer are wound and fastened by prestress from inside to outside, the innermost layer is the metal hub matrix, and the outer layer is the steel wire prestress layer. The energy-storing flywheel rotor loop manufactured by winding the steel wires disclosed by the invention has the advantages that the stress state of the flywheel hub is changed, the strength of the metal hub is greatly improved, the use performance of the hub is improved, the inside and outside radius ratio of the flywheel rotor is increased, the compatibility of deformation of the hub and a rim is improved, the energy storage density of the flywheel is improved, and the manufacturing cost of the rotor is obviously reduced.

Description

technical field [0001] The invention relates to a flywheel energy storage component, in particular to a high-strength, low-cost flywheel rotor used in a flywheel energy storage system. Background technique [0002] The flywheel rotor is the most important link in the flywheel energy storage system, and the selection of flywheel materials with high tensile strength is a prerequisite for the flywheel battery to store more energy. In order to improve the energy storage capacity of the flywheel, the method of increasing the rotational speed is generally adopted to meet the requirement of high energy storage. As the rotational speed increases, the centrifugal force on the rotor gradually increases. When the radial tensile force of the rotor exceeds the strength of the hub, the rotor hub will be damaged. This limitation restricts the energy storage density and the improvement of energy storage energy of the energy storage flywheel, and will lead to catastrophic vicious accidents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/30F16F15/305H02K7/02
CPCY02E60/16
Inventor 郭志猛杨芳郭雷辰陈存广孙骏彬石韬叶安平
Owner UNIV OF SCI & TECH BEIJING
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