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Flywheel rotor hub adopting steel-wire prestressing force winding structure

A technology of steel wire winding and flywheel rotor, which is applied in the direction of flywheel, etc., can solve the problems of large composite material layer size, limited ultimate strength of metal hub, and high production cost, so as to increase energy storage density, reduce cracking tendency, and improve service performance. Effect

Active Publication Date: 2012-09-19
北京奇峰聚能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limited ultimate strength of metal hubs makes the composite layer size large and expensive to produce

Method used

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  • Flywheel rotor hub adopting steel-wire prestressing force winding structure
  • Flywheel rotor hub adopting steel-wire prestressing force winding structure
  • Flywheel rotor hub adopting steel-wire prestressing force winding structure

Examples

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example 1

[0018] Such as figure 1 As shown, the flywheel rotor described in this example is in the shape of a disc composed of a metal base hub 1 and a steel wire prestressed winding layer 2, and the center of the flywheel rotor is a bearing hole 3 for connecting with the flywheel. When in use, it is only necessary to install the rotor made according to the above structure on the bearing of the flywheel through the bearing hole 3.

[0019] The metal base hub 1 can be selected from the prior art ultra-high-strength steel, titanium alloy or high-strength aluminum alloy, and the high-strength steel wire is wound on the metal hub base under normal stress using a winding machine. In the winding process, in order to avoid the compression deformation of the metal hub matrix due to the winding tension of the outer steel wire, which will cause the tension of the inner steel wire to decrease and the winding layer of the steel wire to relax, a variable tension winding process with monotonously decreas...

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Abstract

The invention relates to a flywheel rotor hub adopting a steel-wire prestressing force winding structure, which includes a metal hub base body and a steel-wire winding layer, wherein the metal hub base body is disk-shaped or cylindric; the steel-wire winding layer is formed on the outer surface of the metal hub base body; and the metal hub base body and the steel-wire wind layer are tightly connected in a winding manner through prestressing force. The hub adopting the structure can change the stress state of the hub of the flywheel rotor, greatly improve the service intensity and service performance, reduce the failure and damage ratio of the entire flywheel system, and enable the flywheel rotor to be used reliably; and the flywheel rotor hub provided by the invention can effectively increase the inner and outer radius ratio of the rotor, improve the energy storage density of the flywheel and remarkably reduce the manufacturing cost of the rotor at the same time.

Description

Technical field [0001] The invention relates to a flywheel energy storage component, in particular to a high-strength, low-cost flywheel rotor metal hub used in a flywheel energy storage system. technical background [0002] The flywheel rotor is the most important link in the flywheel energy storage system. The selection of high tensile strength flywheel materials 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 speed is generally used to meet the requirements of high energy storage. As the speed increases, the centrifugal force that the rotor bears gradually increases. When the radial tensile stress force of the rotor exceeds the strength of the hub, the rotor hub will be damaged. This limitation limits the energy storage density of the energy storage flywheel and the increase in energy storage energy, which can lead to catastrophic accidents in severe cases. At prese...

Claims

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Application Information

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IPC IPC(8): F16F15/30
Inventor 蒋涛
Owner 北京奇峰聚能科技有限公司