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电机轴承老是跑位,该怎么办?

2024-04-19

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我们设备上的主电机,是原装进口的75HP电机,近期出现了轴承老是跑位现象。

情况是这样的:电机一直运作正常,在一次检修时加了一次油,之后一星期内2台电机,出现了轴承跑位现象,当时电机温度,短时间内上升到100多度。拆开之后发现正常内圈向外跑位。之后火焰喷涂修复转子。

大家碰到过没有?请问大家为什么会出现这种情况?大家都是怎样保养电机的!更换轴承用什么工具呀?怎么预防和检查呀!之前我一直监测电机的温度和振动都没有问题呀!对了前轴承是NU217,后轴承是6213, 是前轴承跑位!看图:

电友A:你把轴给弄淡了,用样冲在电机轴镶轴承的地方,均匀的砸一圈麻点再镶上轴承,用锁固胶锁住就搞定了,再修时不用把轴承拿下来,用柴油清洗完后均匀涂抹黄油就OK了。

电友B:内圈窜动说明轴向受力,应检查电机安装面是否倾斜、皮带传动的话是否主从轮未处于同一平面上,轴颈已经磨损应修复。

电友C:原因:1、安装不正。2、电机受力不均匀。3、电机功率不够。4、受本体或周边变频影响。

来源:注册电气工程师交流平台

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