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耐高温轴承
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高压电动机轴承故障分析及改造,解决发热、漏油、寿命低以及运行中损坏的问题

[ 关键词:轴承 发表日期:2013-10-29 12:18:00 ]

  在发电厂及大型企业的生产过程中,电动机是主要的动力源,一旦发生故障,对整个生产所带来的损失是相当大的,尤其是大、中型高压电动机,可严重影响到整个生产过程。根据我们对电机故障的统计发现,轴承损坏或因为轴承损坏而造成的电机故障,占了电机全部故障的70%以上,为此我们对电机轴承故障发生较多的电动机进行了分析并进行改造,解决了电动机轴承的发热、漏油、寿命低以及运行中突发性损坏的问题,大大减少了检修费用,为安全运行提供了可靠保证。

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部分进口电动机的设计优点

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1、负侧双轴承结构尽量改为单轴承结构;
2、根据与被拖动机械的连接方式,尽量设计负侧为“深沟球轴承”,以负侧定位;
3、经计算,在保证电机使用功率的情况下,尽量选用允许转速大大超过电机转速的轴承;
4、根据要改造电机的实际轴向尺寸,尽量将轴承外侧的油室加大;
5、根据要改造电机的实际轴向尺寸,尽量将内、外轴承 盖外侧加装铝合金梯形槽密封;
6、轴承的固定方式,采用细丝、4 槽螺母和19 齿锁垫结构;
7、轴承套采用“球墨铸铁”材料,内、外轴承盖采用灰铸铁材料;
8、轴承的加、排油装臵完全按照进口电机的结构设计制做。

总结发展

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