水轮发电机组镜板研磨装置的优化改进

Optimization and Improvement of Mirror Plate Grinding Device for Hydro Generators

镜板是水轮发电机组推力轴承的心脏部件,它的质量直接关系着水轮发电机组的安全运行,理想光滑的镜板与推力瓦配合是机组安全稳定运行的关键因素。在发电机组的A级检修过程中,使用镜板研磨装置对镜板面实施研磨和抛光处理,以使粗糙度、光洁度、表面硬度和波浪度达到相关技术要求,但相关研磨装置已使用近十年,在检修现场已暴露出一些不足,不能完全贴合使用需求。通过对现有镜板研磨装置各类问题分析,提出相应优化措施,成功设计并制作了一套高效、精准、安全的研磨装置。

The mirror plate is a critical part of thrust bearing of hydro generators and its quality is directly related to the safe operation of the generator.The coordination of the ideal smooth mirror plate and thrust bearings is a key factor for the safe and stable operation of the unit.In the process of the generator unit maintenance,the mirror plate grinding device is used to grind and polish the surface of the mirror plate,in order to meet the relevant technical requirements for roughness、smoothness、surface hardness and waviness.However,the relevant grinding device has been used for nearly ten years and has exposed some shortcomings on the maintenance site,which cannot fully meet the usage requirements.This article analyzes various problems of existing mirror plate grinding devices,proposes corresponding optimization measures,and successfully designs and manufactures an efficient,accurate,and safe grinding device.