井用潜水电动机的基本结构与主要特点(四)

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(3)井用潜水电动机转轴的密封结构不管是充油式电动机、干式电动机、还是充水式电动机或屏蔽式电动机,它们在井下水中运行时,都要求井水以及水中所含固体杂质不泄漏进入电动机内腔.因此,在各种结构的井用潜水电动机的轴伸端均装有转轴密封装置,包括橡胶骨架油封、各种结构型式的端面机械密封等.下面介绍井用潜水电动机常用的机械密封结构和橡胶骨架油封的安装结构.
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