CN2411388Y - 组合式迷宫密封圈 - Google Patents
组合式迷宫密封圈 Download PDFInfo
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- CN2411388Y CN2411388Y CN99250993U CN99250993U CN2411388Y CN 2411388 Y CN2411388 Y CN 2411388Y CN 99250993 U CN99250993 U CN 99250993U CN 99250993 U CN99250993 U CN 99250993U CN 2411388 Y CN2411388 Y CN 2411388Y
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
- F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
本实用新型涉及一种组合式机械密封圈的结构改良。它系在外骨架的一端设有静密封圈体,其主唇过盈配合于内骨架的内侧;而在内骨架的一端设有动密封圈体,其侧唇和外唇分别过盈配合于外骨架的内侧。因此,具有结合理,体积小,防尘、防水、防油脂泄漏效果好,摩擦力矩较小,密封性能好,抗温升性能较好,价格低廉,适用性较广等特点。可广泛应用于各种轴承或汽车轮毂单元等场合。
Description
本实用新型涉及一种机械密封圈,尤其是一种由金属和橡胶组合而成的迷宫状密封圈。
现有的密封圈多采用橡胶制成单片或双片的结构,虽然其结构简单,价格较低,但存在着易磨损,寿命短,密封性能欠佳等不足。
为了克服单一密封圈结构所造成的不足,有人采用密封圈不同的结构或材料组合制成组合式密封圈。例如,组合异型密封圈(专利号95209098.8)的实用新型专利公开了一种密封圈,其环形截面下部呈梯形,上部至少有一道内外凸起的环状结构,该凸起环的结构起着第二次密封作用,增大了与构件的接触面,改善密封性能,但仍存在着易磨损,摩擦阻力大等不足。
本实用新型的发明目的是提供一种结构合理,密封性能好,摩擦力距和体积较小,价格低廉,适用范围较广的组合式迷宫密封圈。
本实用新型的发明目的主要是通过下述技术方案得以实现的:在外骨架的一端设有静密封圈体,静密封圈体的主唇过盈配合于内骨架的内侧;而在内骨架的一端设有动密封圈体;其外侧周围设置的侧唇和外唇分别过盈配合于外骨架的内侧。所述的动密封圈体的侧唇可依靠于外骨架的静侧边上;外唇向外侧弯曲,且依靠于外骨架的外边上。所述的动密封圈体的侧唇也可以依靠于外骨架的外边上。此外,所述静密封圈体还可以设有一伸向内骨架内边内侧的副唇。
所述的静密封圈体系采用橡胶制成,其上设有与外骨架端部相配的连接座,并两者粘接成一体;且所述的外骨架的截面由L形的外边和静侧边构成;内骨架的截面由呈L形的内边和动侧边构成;动侧边的端部与动密封圈体粘接成一体。
所述的外骨架和内骨架除了铸造或金加工制造出所需的形状外,也可以采用钢板冲制而成。
因此,本实用新型具有如下优点:
1.结构合理、简单,克服了现有密封圈占用空间较大的不足,明显地缩小了结构的体积,使之宽度可小于4毫米,拓宽了使用场合。
2.采取静密封圈体和动密封圈体相结合以及金属与橡胶软硬结合的组合式迷宫结构,使之防尘、防水性能优良,是普通密封圈的2-10倍。并提高了防止密封圈油脂泄漏的能力。
3.各橡胶唇面和与之接触的骨架均采用线接触,加之尺寸减少,使之运行的摩擦力矩可大为减少,并有效地防止温度上升,提高了抗温的能力。
4.制造方便,生产成本较低,使之整个结构价格下降,更为经济。
图1是本实用新型的一种结构的局部断面图;
图2是本实用新型的另一种结构的局部断面图;
图3是本实用新型的第三种结构的局部断面图;
图4是本实用新型安装在轴承中的一种局部剖视图。
下面通过实施例,并结合附图,对本实用新型的结构作进一步描述。
外骨架2系采用钢板冲制成截面呈L形的圆环,其底面为静侧边22,垂直面为外边21;同样,内骨架亦采用钢板冲制成截面呈L形的圆环,其底面为动侧面42,垂直面为内边41。然后,分别对其金属表面进行防锈处理,以提高其耐腐蚀能力。静密封圈体3采用橡胶制成,其上设有主唇32,连接座31的形状与外骨架2的静侧边22端部形状相配合(参见附图1),并将两者用粘接剂粘固成一体。然后,在动侧边42的一端与动密封圈体9的连接座相配合,并粘接成一体;其中所述的动密封圈体9系由侧唇92和外唇91以及连接座31采用橡胶整体构成。装配时,静密封圈体的主唇32与内边过盈配合,而侧唇92和外唇91均过盈配合于静密封圈的外边21上(参见附图1)。
所述动密封圈体的侧唇92也可以外展,使其与静侧边22相过盈配合(参见附图3)。
附图2所示的是本实用新型上述实施例的结构变形。它主要是在静密封圈体3连接座31的外侧设有副唇33,该副唇与主唇呈人字形设置,并延伸至内骨架4的内侧。同样,静密封圈体与内骨架的内边以及动密封圈体与外骨架的外边均采用过盈配合,装配成产品。
使用时,本实用新型的内骨架4之内边41设置在轴承内环6上,其动侧边与轴承的外侧面齐平;而外骨架2的外边21固定在轴承外环5上,其静侧边22置于轴承的近流动体7侧(参见附图4)。流动体7的相对位置可依靠保持架8保持基本不变。这样,橡胶多层的唇体结构,可有效地防止污水、尘土进入,或者轴承内润滑油等的泄漏。
Claims (6)
1.一种组合式迷宫密封圈,包含有骨架和设于其内的密封体,其特征是在外骨架(2)的一端设有静密封圈体(3),静密封圈体的主唇(32)过盈配合于内骨架(4)的内侧;而在内骨架(4)的一端设有动密封圈体(9),其外侧周围设置的侧唇(92)和外唇(91)分别过盈配合于外骨架(2)的内侧。
2.如权利要求1所述的组合式迷宫密封圈,其特征在于所述的动密封圈体(9)的侧唇(92)依靠于外骨架(2)的静侧边(22)上;外唇(91)向外侧弯曲,且依靠于外骨架(2)的外边(21)上。
3.如权利要求1所述的组合式迷宫密封圈,其特征在于所述的动密封圈体(9)的侧唇(92)依靠于外骨架(2)的外边(21)上;外唇(91)向外侧弯曲,且依靠于外骨架(2)的外边(21)上。
4.如权利要求1或2或3所述的组合式迷宫密封圈,其特征是所述静密封圈体(3)设有一伸向内骨架(4)内边(41)内侧的副唇(33)。
5.如权利要求1或2或3所述的组合式迷宫密封圈,其特征在于所述的静密封圈体(3)系采用橡胶制成,其上设有与外骨架(2)端部相配的连接座(31),并两者粘接成一体;且所述的外骨架的截面由L形的外边(21)和静侧边(22)构成;内骨架(4)的截面由呈L形的内边(41)和动侧边(42)构成;动侧边(42)的端部与动密封圈体(9)粘接成一体。
6.如权利要求4所述的组合式迷宫密封圈,其特征在于所述的静密封圈体(3)系采用橡胶制成,其上设有与外骨架(2)端部相配的连接座(31),并两者粘接成一体;且所述的外骨架的截面由L形的外边(21)和静侧边(22)构成;内骨架(4)的截面由呈L形的内边(41)和动侧边(42)构成;动侧边(42)的端部与动密封圈体(9)粘接成一体。
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CN99250993U CN2411388Y (zh) | 1999-11-23 | 1999-11-23 | 组合式迷宫密封圈 |
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CN99250993U CN2411388Y (zh) | 1999-11-23 | 1999-11-23 | 组合式迷宫密封圈 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101883941A (zh) * | 2007-12-12 | 2010-11-10 | Nok株式会社 | 密封装置 |
CN101900208A (zh) * | 2010-07-06 | 2010-12-01 | 太原煤气化股份有限公司焦化厂 | 动静环式骨架密封 |
CN101614280B (zh) * | 2009-07-23 | 2011-12-07 | 杜长春 | 行走机械自摩复合式车桥轮毂油封总成 |
CN101627238B (zh) * | 2007-01-12 | 2012-11-07 | 费德罗-莫格尔公司 | 具有软定位和碎片排出部件且成套的密封组件 |
CN105370890A (zh) * | 2014-08-26 | 2016-03-02 | Skf公司 | 低摩擦动态密封件 |
-
1999
- 1999-11-23 CN CN99250993U patent/CN2411388Y/zh not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101627238B (zh) * | 2007-01-12 | 2012-11-07 | 费德罗-莫格尔公司 | 具有软定位和碎片排出部件且成套的密封组件 |
CN101883941A (zh) * | 2007-12-12 | 2010-11-10 | Nok株式会社 | 密封装置 |
CN101883941B (zh) * | 2007-12-12 | 2014-07-16 | Nok株式会社 | 密封装置 |
CN101614280B (zh) * | 2009-07-23 | 2011-12-07 | 杜长春 | 行走机械自摩复合式车桥轮毂油封总成 |
CN101900208A (zh) * | 2010-07-06 | 2010-12-01 | 太原煤气化股份有限公司焦化厂 | 动静环式骨架密封 |
CN105370890A (zh) * | 2014-08-26 | 2016-03-02 | Skf公司 | 低摩擦动态密封件 |
CN105370890B (zh) * | 2014-08-26 | 2019-08-30 | Skf公司 | 低摩擦动态密封件 |
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