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骨架油封的结构及各部分作用

2025-07-29

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①唇端部(滑动面)

唇端部是斜楔形状,在端部按压轴表面,起密封流体的作用。

②密封唇部

密封唇是由具有弹性的合成橡胶制成的,设计上确保其在机械的振动及密封流体的压力变动的影响下,仍可保持稳定的密封作用,并起到保持与唇端部的轴表面的接触状态稳定的作用。另外,弹簧可提高密封唇部对轴的压紧力,起防止尘埃侵入的作用。

③防尘唇部

防尘唇是没有与弹簧连接的副唇,起防止尘埃侵入的作用。

④配合部

配合部在将油封固定于腔体孔的同时,起防止流体从油封外周面与腔体内面的接触面之间泄漏及侵入的作用。

另外,金属骨架起将油封固定于腔体上,保持配合力的作用。

来源:网络

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