CN203594550U - 一种水轮发电机上机架的径向拉紧螺杆结构 - Google Patents

一种水轮发电机上机架的径向拉紧螺杆结构 Download PDF

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CN203594550U
CN203594550U CN201320734823.8U CN201320734823U CN203594550U CN 203594550 U CN203594550 U CN 203594550U CN 201320734823 U CN201320734823 U CN 201320734823U CN 203594550 U CN203594550 U CN 203594550U
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tensioning screw
radial
upper rack
turbine generator
screw structure
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吴烈龙
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HANGZHOU LIANYUAN HEAVY INDUSTRY MACHINERY CO LTD
HANGZHOU RESOURCE POWER EQUIPMENT CO Ltd
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HANGZHOU RESOURCE POWER EQUIPMENT CO Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

本实用新型涉及一种水轮发电机上机架的径向拉杆结构，包括:垫块、止动垫圈、螺母、拉紧螺杆、预埋基础板，垫块、止动垫圈、螺母将拉紧螺杆的一端固定在机架上，止动垫圈、螺母将拉紧螺杆的一端固定在预埋基础板上。本实用新型的主要特点：通过拉紧螺杆的预紧力将上机架径向方向拉紧，达到加强上机架径向刚度的目的，结构简单且成本低；由于拉紧螺杆只承受拉力，机组出现短路时，可避免传统千斤顶支撑顶坏基础的情况。

Description

一种水轮发电机上机架的径向拉紧螺杆结构
技术领域
本实用新型属于水轮发电设备技术领域，涉及一种水轮发电机上机架的径向拉紧螺杆结构。
背景技术
随着水轮发电机容量越大，由于气隙不均匀产生的不平衡磁拉力越大，造成机组振动过大，其中提高机架径向刚度能够有效减小机组振动。传统加强上机架径向刚度的方法为使用千斤顶或三角支架支撑，其中千斤顶支撑成本低，但效果一般，特别机组发生短路时，可能发生将基础顶坏的情况，因此其只适合小机组使用；三角架支撑可以将径向不平衡磁拉力转化成切向力，可避免将基础顶坏，而且效果好，但成本很高，且只适合大机组使用。
实用新型内容
为了克服传统结构中的上述缺点，本实用新型提供一种有效、低成本和简单的径向拉紧螺杆结构。
本实用新型解决其技术问题所采用的技术方案是：
一种水轮发电机上机架的径向拉杆结构，包括:垫块、止动垫圈、螺母、拉紧螺杆、预埋基础板，垫块、止动垫圈、螺母将拉紧螺杆的一端固定在机架上，止动垫圈、螺母将拉紧螺杆的一端固定在预埋基础板上。
本实用新型的主要特点：通过拉紧螺杆的预紧力将上机架径向方向拉紧，达到加强上机架径向刚度的目的，结构简单且成本低；由于拉紧螺杆只承受拉力，机组出现短路时，可避免传统千斤顶支撑顶坏基础的情况。
附图说明
图1是本实用新型结构示意图；
图2为A-A剖示图。
具体实施方式
请参阅图1所示，一种水轮发电机上机架的径向拉杆结构，包括:垫块1、止动垫圈2、螺母3、拉紧螺杆4、预埋基础板5，垫块1、止动垫圈2、螺母3将拉紧螺杆4的一端固定在机架上，止动垫圈2、螺母3将拉紧螺杆4的一端固定在预埋基础板5上。
本实用新型在安装时，先调整好上机架高程和中心、方位后，安装好上机架拉紧螺杆，拉紧螺杆应中心对称拧紧，最后每个垫圈均需点焊两处。

Claims (1)

1.一种水轮发电机上机架的径向拉紧螺杆结构，其特征在于：包括垫块、止动垫圈、螺母、拉紧螺杆、预埋基础板，其特征在于：垫块、止动垫圈、螺母将拉紧螺杆的一端固定在机架上，止动垫圈、螺母将拉紧螺杆的一端固定在预埋基础板上。
CN201320734823.8U 2013-11-20 2013-11-20 一种水轮发电机上机架的径向拉紧螺杆结构 Expired - Lifetime CN203594550U (zh)

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CN201320734823.8U CN203594550U (zh) 2013-11-20 2013-11-20 一种水轮发电机上机架的径向拉紧螺杆结构

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CN201320734823.8U CN203594550U (zh) 2013-11-20 2013-11-20 一种水轮发电机上机架的径向拉紧螺杆结构

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CN203594550U true CN203594550U (zh) 2014-05-14

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