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2024-02-18
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对于大多数连续运行工况的电机，以及一些安装和拆解都比较困难的情况，在电机的生产制造环节会增加不停机的注油和排油装置，即在电机不停止运行的状态下，对电机轴承系统的润滑脂进行更换。
有网友提了一个问题，其使用的电机在加注润滑脂后根本就没有原来的油脂排出，怀疑其排油系统有问题。针对于该问题，我们与大家就相关问题进行一些分析。
对于具备电机拆解条件的情况，如果能将原来的油脂，特别是运行时间较长的油脂进行全部清理，而后统一更换新的油脂，这样效果会更好一些；但是对于不停机状态下的维护，只能通过新油脂的加注，将原来的油脂从排油孔排出，加注到有新脂排出时，理论上认为基本完成了该状态下的新陈代谢。
该网友提出的原油脂没有排出一事实，可能的原因为以下几种情况：
第一种情况：新油脂的加注量不够，还未能完成整体的循环，特别是原来油脂留存不足时，需要的加注量会更大一些。
第二种情况：轴承系统的排油系统不畅通，可能存在排油孔不通或关联油路不畅通的问题，包括原油脂老化结块阻挡了油路问题等。遇到该问题时，应进行必要的检查，以防止更严重问题的发生。
第三种情况：轴承内盖与轴的配合间隙过大，或没有采取必要的封油措施，可能会导致加油过程中相对多余的润滑脂通过轴承内盖进入电机内腔，这对于电机绕组的质量会有较大的威胁。
该类问题在电机的应用过程中不时会出现，因而对于注油排油系统的有效性，在电机试验的过程中应予以验证，以防止非预期的问题发生。
来源：电机技术日参
（版权归原作者或机构所有）
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Hangzhou Jingzhou Bearing Co.,Ltd.
Address：Liangzhu Indystrial City Hangzhou
Service hotline：0571-88777186 88777665
Jiangsu Jingzhou Bearing Co., Ltd.
Address：No.19, Yulan Avenue, Xuyi Economic DevelopmentZone, Huai’an City, Jiangsu Province
Service hotline：0517-80817777
Website：www.jzbearing.com
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