EP3601824A1 - Dichtungselement sowie lageranordnung mit diesem - Google Patents
Dichtungselement sowie lageranordnung mit diesemInfo
- Publication number
- EP3601824A1 EP3601824A1 EP18711002.8A EP18711002A EP3601824A1 EP 3601824 A1 EP3601824 A1 EP 3601824A1 EP 18711002 A EP18711002 A EP 18711002A EP 3601824 A1 EP3601824 A1 EP 3601824A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sealing
- segments
- segment group
- bearing
- disc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F16J15/3268—Mounting of sealing 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
- 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
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- 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
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7843—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc
- F16C33/7846—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a single annular sealing disc with a gap between the annular disc and the inner race
-
- 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
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/045—Mounting or replacing seals
-
- 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
- F16J15/44—Free-space packings
- F16J15/447—Labyrinth packings
- F16J15/4472—Labyrinth packings with axial path
Definitions
- the present invention relates to a sealing element for sealing a space between a first bearing ring and a second bearing ring, which have a common axis of rotation, comprising a sealing disc which has at least one circumference a plurality of sealing segments.
- the invention also relates to a bearing assembly with such a sealing element.
- a seal is employed between at least two machine elements to limit or prevent unwanted mass transfer from one room to another room.
- Both static and dynamic sealing systems are known for sealing two components.
- Static profile seals often consist of an elastomer and are used, for example, for sealing housing covers or as a flange seal.
- I-profile gaskets or O-rings are used for static sealing.
- the profile seals are intended to guarantee tightness between the components during various operating conditions, whereby existing dimensional and positional tolerances must be compensated. Grooves or depressions are regularly introduced into components or holding nubs provided on the profile seals in order to achieve a tight fit of the profile seals.
- a bearing which comprises a bearing ring with a lateral surface formed by at least one undercut. Furthermore, the bearing ring comprises at least one sealing element with an elastomeric portion and an elastic retaining lip. The lateral surface has a contour with a contact area for axial securing the retaining lip on. This structure is sensitive to tolerance variations, which leads to ovalization of the bearing ring. To ensure the sealing function of the sealing element in a bearing ring, the decoupling of the corresponding shape and dimensional tolerances is desirable.
- the sealing element according to the invention serves to seal a space between a first bearing ring and a second bearing ring.
- the bearing rings have a common axis about which they are rotatable to each other.
- the sealing element comprises a sealing disc having a plurality of sealing segments at its inner and / or outer periphery.
- the sealing disc has a main extension plane, which is preferably oriented radially.
- the sealing segments are aligned at an angle to the main extension plane of the gasket.
- the sealing segments are subdivided into at least two sealing segment groups.
- the first sealing segment group has a negative and the second sealing segment group has a positive angle to the main plane of extension.
- the sealing segments are arranged alternately on the sealing disk, so that a sealing segment of the first sealing Segment group is arranged between each a sealing segment of the second sealing segment group on the sealing disc and the sealing segments of the second sealing segment group sealing segments of the first sealing segment group and so on.
- sealing segments are fingers, snappers or lobes.
- the sealing segments lie with their side surfaces at least partially against each other.
- the sealing disc is preferably formed as a disc.
- the sealing element preferably has two sealing segment groups. Alternatively preferably, the sealing element has three or more sealing segment groups. Particularly preferably, the sealing segments of the first sealing segment group are formed shorter than the sealing segments of the second sealing segment group. Alternatively preferably, the sealing segments of the first and the second sealing segment group are of the same length.
- the sealing washer and the sealing segments are preferably formed together in one piece.
- the positive and negative angles, which are spanned between the sealing segments and the main extension plane of the sealing element smaller than 90 °.
- the positive and negative angles, which are spanned between the sealing segments and the main extension plane less than 45 °.
- an angle between the sealing segments of a sealing segment group and the main extension plane in the range between -25 ° and -1 °, and an angle between the sealing segments of the other sealing segment group and the main extension plane is in the range between + 45 ° and +1 °.
- the negative and the positive angle are different in size.
- the angles are the same size.
- the individual sealing segments each sealing segment group on different spanned angle to the main plane of extension.
- the between the sealing segments of a Dichtseg- ment group and the main extension plane spanned angle equal.
- the main extension plane preferably runs centrally along the sealing disk.
- the sealing segments are preferably parallelepiped-shaped, so that, if the sealing segments of all sealing segment groups were arranged in one plane, they would form a closed ring.
- the sealing segments can also have other shapes.
- the thickness of the sealing segments preferably corresponds to the thickness of the sealing disc.
- the sealing segments can be tapered on their outer circumference.
- the sealing segments each have a sealing edge on their outer circumference. By means of the sealing edge, the sealing element can be applied to a bearing ring or other machine element for sealing.
- the sealing segments are arranged on the radially outer periphery of the sealing disc.
- the sealing segments are arranged on the radially inner circumference of the sealing disc.
- sealing segments are formed both on the inner and on the outer sealing disk circumference.
- a plurality of sealing segments are arranged on the sealing washer.
- at least five sealing segments per sealing segment group are arranged on the sealing disc.
- At least ten sealing segments per sealing segment group are particularly preferably arranged on the sealing disk.
- the number of sealing segments is dependent on the thickness and the diameter of the sealing washer and the position of the sealing segments on the sealing washer and to choose accordingly.
- the sealing element consists of a polymer or elastomer.
- the sealing element consists of a metal.
- the sealing element preferably consists of a combination of metal len and polymers, wherein the sealing element comprises, for example, a reinforcement of a metal.
- the sealing element according to the invention has a further sealing segment, which serves to increase the sealing of the space with respect to substances.
- the further sealing segment is arranged at an angle below the two sealing segments on the sealing disc.
- the further sealing segment is formed circumferentially on the sealing disc.
- the further sealing segment and the main extension plane preferably span an angle of less than 90 °. Particularly preferably, the angle between the further sealing segment and the main extension plane is between 90 ° and 75 °.
- the sealing segments are preferably in an installed state and / or during operation on at least one machine element can be applied.
- the bearing arrangement according to the invention comprises a first and a second bearing ring, which are rotatable about a common axis, the axis of rotation. Between the bearing rings several rolling elements are arranged. Furthermore, the bearing arrangement comprises a sealing element, which is similar to the sealing element described above. The features and embodiments listed for the sealing element apply. At least one of the two bearing rings has at least one recess, which is formed circumferentially on the surface facing the other bearing ring. In the groove, the sealing element, in particular the sealing segments comes to concern.
- the sealing element is a static seal.
- the sealing element is preferably non-rotatably with the sealing segments of the distal side of the sealing disc on the bearing ring, which has no puncture, fitting.
- the sealing segments of the first and the second sealing segment group lie with their sealing edges in the groove of the bearing ring.
- the puncture forms a defined investment area.
- the groove is round.
- the puncture is angular.
- the puncture can also have any other imaginable form.
- the at least one bearing ring, on which the puncture is formed preferably has a puncture edge.
- the piercing edge is preferably parallel to the axis of rotation of the bearing ring. Particularly preferably, the piercing edge is formed towards the edge of the bearing ring.
- the puncture edge has a predetermined diameter, the caliber.
- the sealing segments of the second sealing segment group preferably extend radially beyond the insertion edge into the recess.
- the diameter of the sealing segments of the second sealing segment group is therefore preferably larger than the diameter of the piercing edge.
- the sealing segments of the first sealing segment group preferably do not extend beyond the piercing edge into the groove. They are therefore shorter than the sealing segments of the second sealing segment group.
- the sealing segments of the first sealing segment group are axially angled in the direction of the rolling elements, preferably in the mounting direction and are in the groove.
- the sealing segment of a further sealing segment group is preferably located outside the groove on the bearing ring.
- the further sealing segment is located inside, that is aligned axially in the direction of the rolling elements on the sealing washer.
- the main extension plane of the sealing disc is preferably orthogonal to the axis of rotation of the bearing rings.
- the sealing element according to the invention is positioned and fixed more precisely by the configuration of the sealing segments.
- the axial positioning accuracy is increased.
- the seat in the installed state is reproducible.
- the system is less sensitive to tolerance variations in and around the bearing.
- the design of the sealing head in particular the arrangement of the sealing segments on the sealing disc, allows a targeted introduction of force.
- the diversified sealing head counteracts ovalization.
- Another advantage is that the assembly or the installation of the sealing element is simplified in the camp.
- a simple stamp is used for mounting the sealing element.
- the sealing element is pressed along the piercing edge in the recess of the bearing, wherein the sealing segments of the first sealing segment group do not come into contact with the piercing edge, and wherein the sealing segments of the second sealing segment group briefly abut the piercing edge and thereby briefly, elastically deformed become.
- the sealing segments of the first sealing segment group can be elastically deformed when they abut against a surface of the recess. It comes to a suppression of the sealing segments of the first seal group, which can take an angle greater than / equal to 90 °.
- the sealing segments of the second sealing segment group leave contact with the puncture edge and slip into the puncture.
- the punch used for assembly is removed and the sealing element, in particular the sealing segments take their predetermined position in the groove. The sealing element is centered and the sealing segments are radially and axially positioned.
- Figure 1 is a partial sectional view of a first embodiment of a sealing element according to the invention
- Figure 2 is a fragmentary plan view of the peripheral side of the sealing element according to Figure 1;
- Figure 3 is a partial sectional view of a bearing assembly with a second
- Figure 4 is a cross-sectional view of a bearing assembly with the sealing element according to the invention.
- FIG. 1 shows a partial sectional view of a first embodiment of a sealing element 01 according to the invention.
- the sealing element 01 which serves to seal a space, comprises a disk-shaped sealing disk 02 on which a plurality of sealing segments 03 are arranged.
- the sealing washer 02 and the sealing segments 03 are manufactured as one piece.
- the sealing segments 03 are subdivided into two sealing segment groups, namely into a first sealing segment group 04 and a second sealing segment group 06.
- the sealing element 01 has a main extension axis 07.
- the sealing segments of the first sealing segment group 04 are angled off from the main extension axis 07 in the negative direction (in the clockwise direction).
- FIG. 2 shows a partial plan view of the end face of the sealing element 01 according to FIG. 1. In the plan view according to FIG. 2, the individual sealing segments 03 of the first and the second sealing segment group 04, 06 can be seen.
- the sealing segments of the first and second sealing segment group 04, 06 are arranged alternately circumferentially on the sealing disc 02, wherein the side surfaces of adjacent sealing segments 03 at least partially abut each other.
- FIG. 3 shows a partial sectional view of a bearing arrangement 08 with a second embodiment of the sealing element 01, which is mounted.
- a sealing segment of a further, third sealing segment group 09 is arranged in addition to the sealing segments of the first and the second sealing segment group 04, 06.
- the sealing segment of the third sealing segment group 09 is formed circumferentially on the sealing washer 02.
- a negative angle is spanned which is greater than the angle between the sealing segments of the first sealing segment group 04 and the main extension axis 07.
- 3 shows the "fanned-out" arrangement of the sealing segments 03, which makes possible a simple and accurate positioning of the sealing element 01.
- the sealing element 01 is seated on an outer bearing ring 1.
- the outer bearing ring 1 1 has a circumferential groove 12.
- An A piercing edge 13 with a specific diameter is formed on the outer edge of the outer bearing ring 1 1.
- the diameter of the piercing edge 13 is greater than an inner ring diameter 14 of the outer bearing ring 11, but smaller than an outer ring diameter of the outer bearing ring 11
- Sealing segments of the first and second sealing segment groups 04, 06 rest at least partially against the recess 12 of the outer bearing ring 11.
- the sealing segment of the further sealing segment group 09 sealingly abuts the inner ring diameter 14 of the outer bearing ring 11.
- the diameter of the sealing disk 02 coincides with that of FIG Sealing segment of the first sealing segment group 04 is clotting ger than the diameter of the sealing disc with the sealing segment of the two th sealing segments of the first sealing segment group 04 are shorter than the sealing segments of the second sealing segment group 06 formed.
- FIG. 4 shows a cross-sectional view of the bearing arrangement 08 with the sealing element 01 according to the invention, this being similar to the sealing element 01 shown in FIG.
- the sealing element 01 comprises the sealing disk 02 and sealing segments of the first and the second sealing segment group 04, 06.
- the bearing assembly 08 further comprises the outer bearing ring 1 1 and an inner bearing ring 17, which have a common axis of rotation 18.
- the bearing rings 1 1, 17 are rotatable to each other. Between the bearing rings 1 1, 17 rolling elements 19 are arranged.
- Both bearing rings 1 1, 17 have a circumferential recess 12.
- the sealing element 01 rests with the sealing segments of the first and second sealing segment group 04, 06 in the groove 12.
- the sealing element 01 is thus shown in the installed state.
- the recess 12 is open in the radial direction to the inner bearing ring 17.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017106885.6A DE102017106885B4 (de) | 2017-03-30 | 2017-03-30 | Dichtungselement sowie Lageranordnung mit diesem |
| PCT/DE2018/100157 WO2018177455A1 (de) | 2017-03-30 | 2018-02-22 | Dichtungselement sowie lageranordnung mit diesem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3601824A1 true EP3601824A1 (de) | 2020-02-05 |
Family
ID=61628090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18711002.8A Withdrawn EP3601824A1 (de) | 2017-03-30 | 2018-02-22 | Dichtungselement sowie lageranordnung mit diesem |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11092240B2 (de) |
| EP (1) | EP3601824A1 (de) |
| CN (1) | CN110382893B (de) |
| DE (1) | DE102017106885B4 (de) |
| WO (1) | WO2018177455A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11131385B2 (en) * | 2017-10-18 | 2021-09-28 | Atlas Seals, Inc. | Press-in retainer ring |
| DE102020120902A1 (de) | 2020-08-07 | 2022-02-10 | Universität Stuttgart | Dichtung, Verfahren zur Abdichtung einer Dichtseite einer Dichtung und Verfahren zur Herstellung einer Dichtung |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525082A (en) * | 1983-06-03 | 1985-06-25 | Skf Kugellagerfabriken Gmbh | Sealing ring assembly for rolling bearings |
| FR3001506A1 (fr) * | 2013-01-28 | 2014-08-01 | Ntn Snr Roulements | Palier a roulement comprenant un capot solidaire de l’organe fixe |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3709572A (en) * | 1970-12-16 | 1973-01-09 | Textron Inc | Reversible shield-seal for a bearing |
| JPS5963222U (ja) | 1982-10-22 | 1984-04-25 | エヌ・テ−・エヌ東洋ベアリング株式会社 | 転ガリ軸受 |
| DE3402366A1 (de) | 1984-01-25 | 1985-08-01 | Kaco Gmbh + Co, 7100 Heilbronn | Radialwellendichtring sowie verfahren zu dessen herstellung |
| US4588312A (en) * | 1985-04-18 | 1986-05-13 | Fafnir Bearing - Division Of The Torrington Company | Antifriction bearing with removable thermally expandable and contractable seal means |
| NL9401721A (nl) * | 1994-10-18 | 1996-06-03 | Skf Ind Trading & Dev | Wentellager met olie-afdichting. |
| JPH08135667A (ja) | 1994-11-14 | 1996-05-31 | Nippon Seiko Kk | 転がり軸受用密封装置 |
| US20020191877A1 (en) * | 1997-04-16 | 2002-12-19 | Hironori Suzuki | Rolling bearing unit with shield plate |
| US6402158B1 (en) | 1998-01-13 | 2002-06-11 | Nichia Precision Industry Co., Ltd. | Seal disk for bearings |
| US6179472B1 (en) * | 1998-10-13 | 2001-01-30 | International Business Machines Corporation | Ball bearing oil/grease loss containment method |
| JP2002147476A (ja) * | 2000-11-16 | 2002-05-22 | Nsk Ltd | シール付転がり軸受 |
| JP2003287041A (ja) * | 2002-03-29 | 2003-10-10 | Nsk Ltd | シールド板および転がり軸受 |
| CN101563546B (zh) * | 2006-12-06 | 2012-07-18 | 胡斯华纳有限公司 | 内燃机的曲轴轴承装置 |
| US9234546B2 (en) * | 2012-01-02 | 2016-01-12 | Aktiebolaget Skf | Large sealed self aligning roller bearing |
| CN102619990A (zh) | 2012-04-06 | 2012-08-01 | 哈尔滨工业大学 | 基于齿槽结构的磁性流体多极密封装置 |
| DE102012224020A1 (de) | 2012-12-20 | 2014-06-26 | Schaeffler Technologies Gmbh & Co. Kg | Lager |
| DE102014223217A1 (de) * | 2014-11-13 | 2016-05-19 | Schaeffler Technologies AG & Co. KG | Dichtungsanordnung für relativ zueinander rotierende Komponenten |
| CN105114469A (zh) | 2015-08-02 | 2015-12-02 | 新昌县天顺机械有限公司 | 一种轴承密封装置 |
-
2017
- 2017-03-30 DE DE102017106885.6A patent/DE102017106885B4/de active Active
-
2018
- 2018-02-22 EP EP18711002.8A patent/EP3601824A1/de not_active Withdrawn
- 2018-02-22 CN CN201880015585.0A patent/CN110382893B/zh active Active
- 2018-02-22 US US16/491,021 patent/US11092240B2/en not_active Expired - Fee Related
- 2018-02-22 WO PCT/DE2018/100157 patent/WO2018177455A1/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4525082A (en) * | 1983-06-03 | 1985-06-25 | Skf Kugellagerfabriken Gmbh | Sealing ring assembly for rolling bearings |
| FR3001506A1 (fr) * | 2013-01-28 | 2014-08-01 | Ntn Snr Roulements | Palier a roulement comprenant un capot solidaire de l’organe fixe |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2018177455A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110382893B (zh) | 2020-12-25 |
| DE102017106885A1 (de) | 2018-10-04 |
| CN110382893A (zh) | 2019-10-25 |
| WO2018177455A1 (de) | 2018-10-04 |
| US11092240B2 (en) | 2021-08-17 |
| DE102017106885B4 (de) | 2021-12-30 |
| US20200011424A1 (en) | 2020-01-09 |
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