一种新型光纤搓扭装置

By designing a novel fiber optic twisting device that combines a twisting wheel, motor, and bearing structure, improvements in fiber optic PMD and coating protection are achieved, solving the problem of coating damage in existing devices and achieving a balance between twisting effect and mechanical strength.

CN121758062BActive Publication Date: 2026-07-17YANGTZE OPTICAL FIBRE & CABLE (TIAN JIN) LTD CO +2

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANGTZE OPTICAL FIBRE & CABLE (TIAN JIN) LTD CO
Filing Date
2025-12-11
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fiber twisting devices, when improving polarization mode dispersion (PMD), struggle to balance the protection of the fiber coating with the precise adjustment of the twisting helix angle, and are prone to causing extrusion damage to the fiber coating.

Method used

A novel fiber optic twisting device was designed, which adopts a combination structure of twisting wheel, oscillating motor and rotary motor. The rotational motion is transmitted through magnetic coupling. The fiber is embedded in the groove of the twisting wheel and is combined with bearings and elastic pads to achieve uniform twisting of the fiber and avoid coating extrusion. At the same time, the rotational speed and oscillation angle of the twisting wheel are adjusted to improve PMD.

Benefits of technology

It improves the fiber PMD, avoids damage to the fiber coating, and can precisely adjust the twisting helix angle to ensure the mechanical strength and processing quality of the fiber.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及光纤生产技术领域,且公开了一种新型光纤搓扭装置,包括搓轮,其表面嵌入光纤,底部设有底板,底板表面安装有第一电机座;摆动电机设于第一电机座的表面,输出端安装有搓轮架,搓轮架内壁设有轴承;底板表面安装有旋转电机,输出端经磁性联轴器连接有轮轴,轮轴贯穿搓轮与轴承内圈相连。旋转电机带动轮轴运作驱动搓轮转动,使光纤受均匀搓扭,减少对光纤涂层额外作用力;摆动电机带动搓轮架和旋转的搓轮一起来回摆动,摆动角调整到使搓轮槽两内侧刚好对光纤形成足够的摩擦,使光纤来回扭转;调整搓轮的旋转速度来实现光纤扭转快慢,达到改善光纤的PMD;在对光纤的搓扭过程中搓轮没有对光纤形成挤压,避免了对光纤涂层的损伤。
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