四川水力发电2025，Vol.44Issue(2)：131-134,4.DOI:10.20196/j.cnki.scslfd.20250231
木坡水电站机组轴线偏移原因分析和处理
Analysis and Treatment of Bearing Axis Offset of the Units of the Mupo Hydropower Project
蔡道锦 1薛玉林 1江月周1
作者信息
- 1. 四川小金川水电开发有限公司,四川 小金 624200
- 折叠
摘要
Abstract
The thrust head design of the units of the Mupo hydropower project is in clearance coordination with the generator main shaft.During operation,the main shaft axis may be offset due to loosening snap rings and other reasons.The main shaft offset causes an increase in the deflection of the lower guide and water guide,and an increase in bearing temperature.When the offset is too large,it will directly cause damage to the water guide bearing.Through technical improvements,the thrust head has been redesigned,and the original thrust head and mirror plate integrated structure has been designed as a separate structure.The thrust head and gen-erator main shaft are matched with interference fit,and the original upper guide cylinder bearing has been changed to a block bearing structure to solve the problem of unit bearing axis offset.关键词
推力头/轴线偏移/间隙配合/过盈配合/分体结构Key words
Thrust head/Bearing axis offset/Clearance fit/Interference fit/Split structure分类
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蔡道锦,薛玉林,江月周..木坡水电站机组轴线偏移原因分析和处理[J].四川水力发电,2025,44(2):131-134,4.
