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公开(公告)号：US09995396B1
公开(公告)日：2018-06-12
申请号：US15378263
申请日：2016-12-14
申请人： Aktiebolaget SKF
发明人： Linas Maskaliunas , Mahmoud Zandieh , Dave Templin
IPC分类号： F01D11/02 , F16J15/3232 , F16J15/447 , F16J15/00
CPC分类号： F16J15/3232 , F16J15/002 , F16J15/3256 , F16J15/3268 , F16J15/4478
摘要： A seal assembly is for sealing between a shaft and a body rotatable about an axis extending through the shaft and includes an annular elastomeric sealing member disposeable within the body bore and coupleable with the shaft. The sealing member has a centerline coaxial with the shaft axis and a radially-outwardly extending, generally annular lip sealingly engageable with an inner circumferential surface of the bore or of a member disposed within the bore so as to define a seal interface. The sealing lip is configured to displace fluid within the sealing interface generally axially out of the interface when the hub rotates about the shaft. Preferably, the sealing member is coupled with an inner casing and disposed within an outer casing, the seal lip sealing against the outer casing inner surface, and a second sealing lip is coupled with the outer casing and seals against the inner casing outer surface.
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公开(公告)号：US20170370405A1
公开(公告)日：2017-12-28
申请号：US15533114
申请日：2015-12-18
IPC分类号： F16C19/06 , F16C33/78 , F16J15/3244 , F16J15/16 , F16C33/76 , F16J15/447 , F16C33/80 , F16J15/42
CPC分类号： F16C19/06 , F16C33/768 , F16C33/7886 , F16C33/80 , F16J15/164 , F16J15/3244 , F16J15/42 , F16J15/4478
摘要： A bearing isolator seal provides enhanced coupling and stability of the rotor to the shaft, without undue seal enlargement, by including a plurality of drive O-rings in a common retention groove. In embodiments, the isolator seal accommodates axial rotor misalignment up to a maximum permitted axial misalignment, which can be at least 0.025″. Embodiments include a labyrinth passage between the rotor and the stator configured to expel fluid by centrifugal force. Embodiments include a shut off feature that takes advantage of axial misalignment. Some embodiments include a unitization feature that holds the rotor and stator together during assembly. The unitization feature can include chamfers on rotor and stator extensions that facilitate assembly and disassembly when sufficient force is applied.
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公开(公告)号：US20170363211A1
公开(公告)日：2017-12-21
申请号：US15533129
申请日：2015-12-08
IPC分类号： F16J15/447 , F16C33/72 , F16J15/16 , F16J15/32
CPC分类号： F16J15/447 , F16C33/72 , F16J15/164 , F16J15/32 , F16J15/4478
摘要： A bearing isolator seal having a shut off O-ring is tolerant of axial rotor-stator misalignment and provides an enhanced static seal while minimizing rotational wear. A tapered section of the stator is overlapped by the shut off O-ring. When the rotor is static there is no axial misalignment, and the shut off O-ring is pressed against the tapered section, forming an enhanced seal. During rotor rotation, increased axial misalignment moves the O-ring away from the tapered section, reducing rotational wear. The stator can extend horizontally beyond the tapered section and below the O-ring, so that if the rotor moves beyond a maximum misalignment, there is a “line on line” fit between the stator and rotor. The bearing isolator seal can include labyrinth technology, and the tapered section can include a contour that allows the shutoff O-ring to drag along the surface of the tapered section with no hang-ups or binding.
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公开(公告)号：US20170045145A1
公开(公告)日：2017-02-16
申请号：US15231832
申请日：2016-08-09
IPC分类号： F16J15/447
CPC分类号： F16J15/447 , F16J15/4478
摘要： A labyrinth seal (2) comprises a first seal part (18) having a first sealing contour (22) and a second seal part (20) rotatable relative to the first seal part (18) and having a second sealing contour (24) complementary to and interlocking with the first sealing contour (22) to provide a tortuous fluid flow path (26) through the seal, The seal parts are made using an Additive Layer Manufacturing technique with their sealing contours interlocking.
摘要翻译： 迷宫式密封件（2）包括具有第一密封轮廓（22）的第一密封部分（18）和可相对于第一密封部分（18）旋转的第二密封部分（20），并具有互补的第二密封轮廓（24） 与第一密封轮廓（22）互锁并且通过密封件提供曲折的流体流动路径（26）。密封部分使用其密封轮廓互锁的添加剂层制造技术制成。
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公开(公告)号：US20160377182A1
公开(公告)日：2016-12-29
申请号：US14748812
申请日：2015-06-24
IPC分类号： F16J15/34
CPC分类号： F16J15/4478
摘要： A rotary seal and rotary machine incorporating such a rotary seal. The rotary seal includes a first race defining a plurality of grooves, and a second race defining a plurality of sealing lips. The plurality of sealing lips are disposed in the plurality of grooves such that a compound seal is formed between the first and second races, and the first race and the second race are relatively rotatable.
摘要翻译： 包括这种旋转密封件的旋转密封和旋转机器。 旋转密封件包括限定多个凹槽的第一座圈和限定多个密封唇缘的第二座圈。 多个密封唇设置在多个槽中，使得在第一和第二座圈之间形成复合密封件，并且第一座圈和第二座圈可相对旋转。
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公开(公告)号：US20160369895A1
公开(公告)日：2016-12-22
申请号：US15186918
申请日：2016-06-20
申请人： Inpro/Seal LLC
发明人： Neil F. Hoehle
IPC分类号： F16J15/3276
CPC分类号： F16J15/3276 , F16J15/4478
摘要： A shaft seal assembly may include a stator and a rotor. The rotor may be configured to rotate with a shaft, and the stator may be engaged with a housing. The stator and rotor may be configured with radial and/or axial recesses and/or radial and/or axial projections. These various features may be configured such that the stator and rotor cooperate to form a ring cavity. A cooperating ring may be positioned in the ring cavity, and the cooperating ring may be configured such that is circumferentially expandable so that the cooperating ring changes size and/or shape when it rotates as opposed to when it is not rotating.
摘要翻译： 轴密封组件可以包括定子和转子。 转子可以被配置为随轴旋转，并且定子可以与壳体接合。 定子和转子可以被配置为径向和/或轴向凹槽和/或径向和/或轴向突出。 这些各种特征可以被配置为使得定子和转子协作形成环腔。 配合环可以定位在环形空腔中，并且配合环可以被构造为使得其周向可膨胀，使得协作环在其旋转时改变尺寸和/或形状，而不是当其不旋转时改变尺寸和/或形状。
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公开(公告)号：US20160061265A1
公开(公告)日：2016-03-03
申请号：US14761941
申请日：2014-03-25
发明人： Eckhard Scholz , Yu Hua Scholz
IPC分类号： F16C33/80 , F16J15/00 , F16J15/44 , F16J15/447
CPC分类号： F16C33/805 , F16C33/80 , F16J15/002 , F16J15/443 , F16J15/447 , F16J15/4474 , F16J15/4478
摘要： In summary, the invention relates to a seal arrangement for non-contact sealing of anti-friction bearings, in particular for sealing anti-friction bearings in conveyors, machine tools, pumps, electric motors and the like. More specifically, the invention relates to an improvement of the arrangement of non-contact fluid-collecting labyrinth seals which perform a sealing function, such that firstly no lubricating oil can escape from the anti-friction bearing side and secondly no water and contaminant can enter from the atmosphere side. The seal arrangement of the invention consists of a three-piece pre-assembled labyrinth seal, of which at least one sealing element is arranged together with the surrounding, stationary machine part and at least one sealing element is arranged on a rotatable machine part. One core advantage of this invention consists in that, if the seal arrangement according to the invention is used, a satisfactory and effective sealing result is achieved despite somewhat severe surging flooding to the sealing elements which occurs.
摘要翻译： 总之，本发明涉及一种用于非接触式密封耐磨轴承的密封装置，特别是用于密封输送机，机床，泵，电动机等中的抗摩擦轴承。 更具体地说，本发明涉及进行密封功能的非接触式流体收集迷宫式密封件的布置的改进，使得首先，润滑油首先不能从抗摩擦轴承侧逸出，其次不会进入水和污染物 从大气方面。 本发明的密封装置由三件式预组装的迷宫式密封件组成，其中至少一个密封元件与周围的固定机器部件一起布置，并且至少一个密封元件布置在可旋转的机器部件上。 本发明的一个核心优点在于，如果使用根据本发明的密封装置，则尽管对发生的密封元件进行了一些严重的淹水，仍然实现了令人满意且有效的密封结果。
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公开(公告)号：US09140305B2
公开(公告)日：2015-09-22
申请号：US14506580
申请日：2014-10-03
申请人： Carmelo Gulli
发明人： Carmelo Gulli
CPC分类号： F16C33/805 , F16C19/04 , F16C33/768 , F16C33/782 , F16C33/7883 , F16C33/80 , F16C41/007 , F16C2326/02 , F16J15/3264 , F16J15/4478
摘要： A sealing unit having a first annular rotating shield and a second annular shield is provided. The second annular shield is fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber and a sealing ring provided with at least a first and a second annular lips, which extend axially and radially projecting from a flange portion of the second shield and towards a flange portion of the first shield, inside the annular chamber. The first shield integrally supports a third annular lip that extends projecting from the first shield towards one of the first and second lips without touching it for defining a second dynamic labyrinth seal between the first and second shield and inside the annular chamber.
摘要翻译： 提供具有第一环形旋转屏蔽件和第二环形屏蔽件的密封单元。 第二环形屏蔽件被固定并布置在第一屏蔽件的前面，用于在其间限定第一环形室和设置有至少第一和第二环形唇缘的密封环，所述第一和第二环形唇缘从第二和第二环形唇缘的凸缘部分轴向延伸并径向突出 屏蔽并朝向第一屏蔽件的凸缘部分，在环形室内。 第一屏蔽件一体地支撑第三环形唇缘，该第三环形唇缘从第一屏蔽件朝向第一和第二唇部之一延伸而不与其接触，以在第一和第二屏蔽件之间和环形室内限定第二动态迷宫式密封。
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公开(公告)号：US20150104291A1
公开(公告)日：2015-04-16
申请号：US14510585
申请日：2014-10-09
CPC分类号： F01D11/02 , F01D11/005 , F01D15/10 , F01D17/08 , F01D21/003 , F01D25/16 , F01D25/183 , F02C7/28 , F16C19/184 , F16C33/763 , F16J15/004 , F16J15/4478 , Y10T29/49297
摘要： A seal assembly for sealing a fluid passageway from contaminants is disclosed. The fluid passageway is formed by a rotating shaft entering an opening in a housing. The fluid passageway connects an interior of the housing, and any exterior of the housing. The seal assembly includes a first sealing member and a second sealing member, which divides the fluid passage into an interior section, an open section, and a sealed section. The interior section is exposed to the interior of the housing. The sealed section is fluidly sealed between the interior section and the open section. A sensor is disposed within the sealed section. The sensor is configured to sense the contaminants within the sealed section and is electronically coupled to a controller configured to send an alarm signal. The sensor is a moisture sensor and extends into an annular recess formed in the stationary member.
摘要翻译： 公开了一种用于将流体通道与污染物密封的密封组件。 流体通道由进入壳体中的开口的旋转轴形成。 流体通道连接壳体的内部和壳体的任何外部。 密封组件包括第一密封构件和第二密封构件，其将流体通道分成内部部分，开口部分和密封部分。 内部部分暴露于外壳的内部。 密封部分在内部部分和开口部分之间流体密封。 传感器设置在密封部分内。 传感器被配置为感测密封部分内的污染物并且电耦合到被配置为发送报警信号的控制器。 传感器是湿度传感器并且延伸到形成在固定构件中的环形凹部中。
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公开(公告)号：US20140333031A1
公开(公告)日：2014-11-13
申请号：US14341412
申请日：2014-07-25
IPC分类号： F16J15/447 , F16J15/32
CPC分类号： F16J15/4478 , F16J15/3244
摘要： A labyrinth sealing device is disclosed for use between a rotating shaft and a bearing housing. In some embodiments, an internal stator engages the housing and a rotor engages the shaft. A labyrinth pathway is defined between the rotor and stator to prevent the migration of lubricants and/or contaminants in either direction. The rotor acts as a running surface for the sealing element, but may also with a ground surface of the rotor to provide a pump that continuously draws lubricant away from the sealing lip toward a sump. In another embodiment, the stator and sealing element are combined as a single element formed from a sealing material. A recess in the sealing lip creates a pressure differential at the sealing surface and minimizes wear.
摘要翻译： 公开了一种用于旋转轴和轴承壳体之间的迷宫式密封装置。 在一些实施例中，内部定子接合壳体并且转子接合轴。 在转子和定子之间限定了迷宫路径，以防止润滑剂和/或污染物向任一方向迁移。 转子作为密封元件的运行表面，但也可以与转子的接地表面一起提供一个泵，该泵将润滑剂从密封唇向贮槽方向延伸。 在另一个实施例中，定子和密封元件组合为由密封材料形成的单个元件。 密封唇中的凹槽在密封表面产生压力差并使磨损最小化。
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