CN2641387Y - L形滑环式组合密封 - Google Patents

L形滑环式组合密封 Download PDF

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Publication number
CN2641387Y
CN2641387Y CNU032787146U CN03278714U CN2641387Y CN 2641387 Y CN2641387 Y CN 2641387Y CN U032787146 U CNU032787146 U CN U032787146U CN 03278714 U CN03278714 U CN 03278714U CN 2641387 Y CN2641387 Y CN 2641387Y
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China
Prior art keywords
ring
slip ring
seal
utility
shape
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Expired - Fee Related
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CNU032787146U
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English (en)
Inventor
陈士田
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XUZHOU CHESHI SEALS CO Ltd
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XUZHOU CHESHI SEALS CO Ltd
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Priority to CNU032787146U priority Critical patent/CN2641387Y/zh
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Publication of CN2641387Y publication Critical patent/CN2641387Y/zh
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
    • F16J15/3236—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips with at least one lip for each surface, e.g. U-cup packings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/56—Other sealings for reciprocating rods

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)

Abstract

本实用新型公开了一种L形滑环式组合密封，它是由一个密封唇部带有若干个环形三角沟槽的L形滑环和O形橡胶圈组成。本实用新型具有结构简单、安装方便、密封性能好、工作寿命长等优点，尤其适用于液压往复运动和高压低速旋转密封。

Description

L形滑环式组合密封
技术领域
本实用新型涉及一种组合密封装置，尤其适用于液压往复运动和高压低速旋转密封用。
背景技术
当前液压系统中所用的密封件普遍是O形圈、Y形圈等橡胶密封圈，橡胶密封圈具有易磨损、摩擦阻力大、容易发生“爬行”现象，工作寿命短等缺点。
发明内容
本实用新型的目的是提供一种密封性能好、摩擦阻力小、工作寿命长的高性能L形滑环式组合密封。
本实用新型是以如下技术方案实现的：该组合密封是由一个L形滑环和O形橡胶圈组成，L形滑环密封唇部带有若干个环形三角沟槽。
其积极效果是：由于采用了上述方案，即可使实用新型具有结构简单紧凑、安装方便、密封性能好、工作寿命长等优点。尤其适用于液压往复运动和高压低速旋转密封及静密封。
附图说明
下面结合附图及实施例对本实用新型作进一步详细描述。
图1是本实用新型的剖示图；
图2是本实用新型的安装剖示图。
图中：1.L形滑环，2.O形橡胶圈，3.密封腔体，4.活塞杆，5.环形三角沟槽，箭头所示为流体的压力方向。
具体实施方式
参照图1，该组合密封由一个L形滑环(1)、O形橡胶圈(2)组成，在L形滑环唇部加工有若干个环形三角沟槽(5)，以储存少量润滑液，使L形滑环在液膜上运行，减小摩擦和磨损，提高密封件寿命。在本实施例中，L形滑环采用由填充料改性的聚四氟乙烯塑料制作，L形滑环的唇口厚度δ为1-2.5mm，挡边宽度b为1-3mm。
图2为将该组合密封安装在工件上的剖示图，组合密封被装在密封腔体(3)与活塞杆(4)接触的部位。
其工作原理是：由图1和图2可知，O形橡胶圈起到提供弹力和副密封作用。在零压或低压下，预压缩的O形圈提供初始密封力，而当系统压力升高时，主要密封力由系统压力组成，从而保证了从零压到高压都能可靠密封。L形滑环唇部带有若干个环形三角沟槽，环形三角沟槽可以储存少量润滑液，使L形滑环经常在液膜上运行，从而减小摩擦和磨损，因此大大提高了工作寿命。L形滑环挡边具有防止密封圈高压下挤出的功能，使密封圈在高压下保持正常工作。

Claims (3)

1、一种L形滑环式组合密封，其特征在于该密封是由一个L形滑环和O形橡胶圈组成，L形滑环唇部带有若干个环形三角沟槽。
2、根据权利要求1所述的L形滑环组合密封，其特征是L形滑环是由填充料改性的聚四氟乙烯塑料制成。
3、根据权利要求1所述的L形滑环组合密封，其特征是L形滑环的唇口厚度δ为1-2.5mm，挡边宽度b为1-3mm。
CNU032787146U 2003-09-19 2003-09-19 L形滑环式组合密封 Expired - Fee Related CN2641387Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU032787146U CN2641387Y (zh) 2003-09-19 2003-09-19 L形滑环式组合密封

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU032787146U CN2641387Y (zh) 2003-09-19 2003-09-19 L形滑环式组合密封

Publications (1)

Publication Number Publication Date
CN2641387Y true CN2641387Y (zh) 2004-09-15

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041877A1 (en) 2007-09-28 2009-04-02 Ge Healthcare Bio-Sciences Ab Sealing assembly for a chromatography column
CN101825067A (zh) * 2010-05-01 2010-09-08 吴声震 风力发电摆线变桨减速器
CN101825059A (zh) * 2010-05-01 2010-09-08 吴声震 风力发电三片摆线单级变桨减速器
CN101832239A (zh) * 2010-05-01 2010-09-15 吴声震 风力发电单级变桨摆线减速器
CN103322202A (zh) * 2013-06-25 2013-09-25 玉林市富山液压件制造有限公司 一种组合式旋转气封
CN103748390A (zh) * 2011-08-24 2014-04-23 恩德斯+豪斯流量技术股份有限公司 唇型密封环
CN105102866A (zh) * 2013-03-27 2015-11-25 株式会社理研 密封装置
CN107228195A (zh) * 2016-03-25 2017-10-03 哈尔滨飞机工业集团有限责任公司 一种起落架上的组合密封方法
CN112642377A (zh) * 2020-12-28 2021-04-13 牡丹江师范学院 用于化工反应釜动密封装置
CN113819048A (zh) * 2021-10-22 2021-12-21 江西立新机液化设备制造有限公司 一种适用于高压水柱塞泵的自动补偿密封磨损间隙的结构
CN115585950A (zh) * 2022-11-28 2023-01-10 西安基准方中建筑设计有限公司 一种建筑防水检测方法

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009041877A1 (en) 2007-09-28 2009-04-02 Ge Healthcare Bio-Sciences Ab Sealing assembly for a chromatography column
CN101809342B (zh) * 2007-09-28 2013-02-13 通用电气健康护理生物科学股份公司 用于色谱柱的密封组件
EP2193295A4 (en) * 2007-09-28 2016-11-16 Ge Healthcare Bio Sciences Ab CLOSURE ASSEMBLY FOR A CHROMATOGRAPHIC PILLAR
CN101825067A (zh) * 2010-05-01 2010-09-08 吴声震 风力发电摆线变桨减速器
CN101825059A (zh) * 2010-05-01 2010-09-08 吴声震 风力发电三片摆线单级变桨减速器
CN101832239A (zh) * 2010-05-01 2010-09-15 吴声震 风力发电单级变桨摆线减速器
CN101832239B (zh) * 2010-05-01 2012-10-03 吴声震 风力发电单级变桨摆线减速器
CN101825067B (zh) * 2010-05-01 2012-11-07 吴声震 风力发电摆线变桨减速器
CN103748390A (zh) * 2011-08-24 2014-04-23 恩德斯+豪斯流量技术股份有限公司 唇型密封环
US9394995B2 (en) 2011-08-24 2016-07-19 Endress + Hauser Flowtec Ag L-shaped sealing ring
CN103748390B (zh) * 2011-08-24 2017-07-11 恩德斯+豪斯流量技术股份有限公司 唇型密封环
CN105102866A (zh) * 2013-03-27 2015-11-25 株式会社理研 密封装置
CN103322202A (zh) * 2013-06-25 2013-09-25 玉林市富山液压件制造有限公司 一种组合式旋转气封
CN107228195A (zh) * 2016-03-25 2017-10-03 哈尔滨飞机工业集团有限责任公司 一种起落架上的组合密封方法
CN112642377A (zh) * 2020-12-28 2021-04-13 牡丹江师范学院 用于化工反应釜动密封装置
CN113819048A (zh) * 2021-10-22 2021-12-21 江西立新机液化设备制造有限公司 一种适用于高压水柱塞泵的自动补偿密封磨损间隙的结构
CN115585950A (zh) * 2022-11-28 2023-01-10 西安基准方中建筑设计有限公司 一种建筑防水检测方法

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20040915

Termination date: 20100919