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1. 发明授权

US06390477B1 Rotary shaft bearing isolator seal 有权
标题翻译：旋转轴轴承隔离器密封
公开(公告)号：US06390477B1
公开(公告)日：2002-05-21
申请号：US09417686
申请日：1999-10-14
申请人： James Drago , Joel R. Shaw , Larry E. Strohm
发明人： James Drago , Joel R. Shaw , Larry E. Strohm
IPC分类号： F16J1534
CPC分类号： F16J15/4478 , F16C19/06 , F16C33/80 , F16J15/164 , F16J15/445
摘要： A bearing isolator seal having a shaft seal assembly that includes a stator housing comprising two components, an interior and an exterior component, the two stator housing components being selectively connectable, and axially positionable (relative to the radial faces of the rotor), disconnectable via screw threads on similar structures formed thereon to enable a perishable rotor component to be readily replaced with the stator components being reusable with a new rotor, the assembled stator housing, having an inner radially extending face with a pair of spaced concentric annular flanges of substantially frusto-conical shape extending from a larger diameter end that is fixed to the inner radially extending face to a smaller diameter free end, and a rotor having a peripherally extending radial flange that is fixed to a hub of the rotor and has a contact sealing surface that contacts the free end of the annular flanges of the stator housing. In accordance with a preferred embodiment, drain ports are provided at a radially inner side of the fixed end of a radially outermost one of the annular flanges of the stator housing, and radially extending grooves are provided in an end surface of a frusto-conical wall extending axially from the sealing face of the radial flange of rotor so as to cause lubricant to be propelled radially outwardly against the radially outermost annular flange of the stator housing, along which it is caused to flow to and through axially extending holes forming the drain ports under dynamic sealing conditions and methods for achieving desired axial clearances for both the original and the replacement rotors.
摘要翻译：一种轴承隔离器密封件，其具有轴密封组件，所述轴密封组件包括定子壳体，所述定子壳体包括两个部件，内部和外部部件，所述两个定子壳体部件可选择性地连接并且可轴向定位（相对于转子的径向面），可断开的通孔在其上形成的类似结构上的螺纹，以使易变质的转子部件容易地被具有可重复使用的新转子的定子部件所替代，组装的定子壳体具有内径向延伸面，其具有基本上截头圆锥形的一对隔开的同心环形凸缘从固定到内部径向延伸面的较大直径端延伸到较小直径的自由端的转子，以及具有周向延伸的径向凸缘的转子，其固定到转子的轮毂上并具有接触密封表面，接触定子壳体的环形凸缘的自由端。根据优选实施例，排水口设置在定子壳体的环形凸缘的径向最外侧的一个的固定端的径向内侧，并且径向延伸的凹槽设置在截头圆锥形壁的端表面中从转子的径向凸缘的密封面轴向延伸，以使润滑剂径向向外推动抵靠定子壳体的径向最外环形凸缘，沿着该定子壳体的径向最外侧的环形凸缘流动并穿过形成排水口的轴向延伸的孔在动态密封条件下和用于实现原始和替换转子的所需轴向间隙的方法。

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