CN2141852Y - 波纹浮动密封圈 - Google Patents

波纹浮动密封圈 Download PDF

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Publication number
CN2141852Y
CN2141852Y CN92213954U CN92213954U CN2141852Y CN 2141852 Y CN2141852 Y CN 2141852Y CN 92213954 U CN92213954 U CN 92213954U CN 92213954 U CN92213954 U CN 92213954U CN 2141852 Y CN2141852 Y CN 2141852Y
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China
Prior art keywords
pump shaft
sealing ring
lip port
main lip
pump
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Expired - Fee Related
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CN92213954U
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苏鹤林
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LIYUAN PLASTIC PRODUCTS FACTORY WUXI CITY
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LIYUAN PLASTIC PRODUCTS FACTORY WUXI CITY
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Abstract

一种泵用密封圈，由圈体和主唇口以及副唇口组 成。由于其圈体由呈弧形的外波纹和内波纹构成，故 弹性好，变形量大，当泵轴晃动时，密封圈可随着浮 动，使主唇口以及副唇口和泵轴很好贴合。主唇口的 前端有一小圆柱面，在介质压力作用下紧贴泵轴，故 该密封圈有很好的防泄漏作用。

Description

本实用新型属于一种泵用密封圈。
现有的水泵密封圈，特别是小型泵的密封圈（见图1），因形状不合理，主、付唇口8和9短而厚弹性差，不能很好和轴贴合，当轴因偏心产生晃动时，密封效果就降低，易于泄漏。
本实用新型的目的是要提供一种结构较为合理，弹性好，不易泄漏的波纹浮动密封圈。
以下结合附图说明本实用新型的实施例。
图2为该密封圈安装在水泵中的剖视图，图3为该密封圈的正视图。在图中，1是泵轴，2是水泵壳体、4是压圈。3为该密封圈圈体，其中5是外波纹，6是内波纹，其断面呈园弧形。这二个波纹使密封圈的弹性有很大的提高，如果这二个波纹的壁适当薄一些则效果更佳。8是主唇口，9是付唇口，主、付唇口紧贴在轴1上，起密封的作用。在主唇口8的前端有一平行泵轴1的小圆柱面7。这几部分的作用是这样的，当轴产生一定的晃动，由于内波纹6和外波纹5的弹性好，可变形量大，可随泵轴1的晃动而浮动，使主唇口8和付唇口9仍能很好地和泵轴1贴合。如果在安装时使内、外波纹6和5与壳体2和压圈4之间留有适当的间隙则效果更佳。主唇口8上的小圆柱面7的作用是，当传递介质时，受到垂直于轴方向的介质压力，使主唇口更紧密地压在泵轴1上，进一步提高了密封性能。

Claims (2)

1、一种波纹浮动密封圈，由圈体3、主唇口8和付唇口9组成，其特征是圈体3由呈弧形的外波纹5和内波纹6构成。
2、一种按照权利要求1所说的波纹浮动密封圈，其特征是在所说的主唇口8前端有一平行泵轴1的小圆柱面7。
CN92213954U 1992-05-23 1992-05-23 波纹浮动密封圈 Expired - Fee Related CN2141852Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN92213954U CN2141852Y (zh) 1992-05-23 1992-05-23 波纹浮动密封圈

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN92213954U CN2141852Y (zh) 1992-05-23 1992-05-23 波纹浮动密封圈

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CN2141852Y true CN2141852Y (zh) 1993-09-08

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CN92213954U Expired - Fee Related CN2141852Y (zh) 1992-05-23 1992-05-23 波纹浮动密封圈

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086222C (zh) * 1994-05-24 2002-06-12 杜长春 静压平衡组合式高压旋转轴油封
CN101922440A (zh) * 2010-09-13 2010-12-22 浙江鸿友压缩机制造有限公司 一种压缩机往复油封结构
CN103968078A (zh) * 2013-01-31 2014-08-06 周清云 旋转轴的金属密封装置及混凝土搅拌机
CN103963163A (zh) * 2013-01-31 2014-08-06 周清云 混凝土搅拌机
US9951870B2 (en) 2015-04-15 2018-04-24 Carl Freudenberg Kg Wiper

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1086222C (zh) * 1994-05-24 2002-06-12 杜长春 静压平衡组合式高压旋转轴油封
CN101922440A (zh) * 2010-09-13 2010-12-22 浙江鸿友压缩机制造有限公司 一种压缩机往复油封结构
CN103968078A (zh) * 2013-01-31 2014-08-06 周清云 旋转轴的金属密封装置及混凝土搅拌机
CN103963163A (zh) * 2013-01-31 2014-08-06 周清云 混凝土搅拌机
CN103963163B (zh) * 2013-01-31 2016-12-28 周清云 混凝土搅拌机
US9951870B2 (en) 2015-04-15 2018-04-24 Carl Freudenberg Kg Wiper
EP3081836B1 (de) * 2015-04-15 2019-07-03 Carl Freudenberg KG Abstreifer

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