EP2697544A1 - Dichtungsringsegment, dichtungsring, dichtung, lager und verfahren zum abdichten eines lagerspaltes - Google Patents
Dichtungsringsegment, dichtungsring, dichtung, lager und verfahren zum abdichten eines lagerspaltesInfo
- Publication number
- EP2697544A1 EP2697544A1 EP12715655.2A EP12715655A EP2697544A1 EP 2697544 A1 EP2697544 A1 EP 2697544A1 EP 12715655 A EP12715655 A EP 12715655A EP 2697544 A1 EP2697544 A1 EP 2697544A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- electrodes
- bearing
- sealing
- sealing ring
- 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- Withdrawn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
- 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
- F16C33/82—Arrangements for electrostatic or magnetic action against dust or other particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/02—Plant or installations having external electricity supply
- B03C3/04—Plant or installations having external electricity supply dry type
- B03C3/10—Plant or installations having external electricity supply dry type characterised by presence of electrodes moving during separating action
-
- 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
- F16C33/80—Labyrinth sealings
-
- 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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/403—Sealings between relatively-moving surfaces by means of fluid by changing the state of matter
-
- 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
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
- F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/14—Details of magnetic or electrostatic separation the gas being moved electro-kinetically
Definitions
- Coarse contact seals can be distinguished from non-contact seals.
- seals are used to protect the bearing before the entry of solids such as dust and / or liquids such as water. The seals act between an intended stationary and a moving part of the bearing.
- Document DE102007048557B3 discloses an arrangement for sealing an access to a space to be sealed.
- the arrangement comprises in a first region of the access at least one, connectable to a pole of a high voltage source charging electrode and in a second region of the access opposite the first region, a counter electrode.
- the electrodes are arranged coordinated with one another in such a way that an influencing zone which forms between the electrodes acts on influenzable particles which penetrate from the outside in the direction of the space to be sealed in such a way that they are accelerated in the direction away from the space to be sealed.
- Document DE 102007029549 A1 describes a device for removing particles from a flowing gaseous medium containing the particles.
- the device comprises a channel for guiding the medium.
- a corona charging electrode which can be connected to one pole of a high-voltage DC source is arranged, and a counterelectrode is arranged in a second region of the channel boundary opposite the first region.
- the invention is achieved by a sealing ring segment, a sealing ring, a seal, a bearing and a method for sealing a bearing gap according to the independent claims.
- At least one electrode may have on the side facing the high-voltage plasma a surface portion which comprises more than one quarter of the total surface area of the electrode.
- the electrodes can be made flat on one side of the high-voltage plasma and pointed on an opposite side.
- at least one of the electrodes may be formed to respectively form a high voltage plasma with a plurality of counter electrodes arranged in different directions to the electrode in a plurality of spaces between the electrode and the plurality of counter electrodes.
- Embodiments may also include a sealing ring that is formed from a plurality of sealing ring segments according to the above description in multiple pieces or in one piece.
- the sealing ring may be composed of a plurality of sealing ring segments, which may be the same or different.
- the sealing ring may also be made in one piece and similar in shape to a composition of the above-described sealing ring segments.
- the abovementioned electrodes can then be circular in shape between annular.
- embodiments may include a gasket having a first gasket as described above and a second gasket as described above, wherein the first gasket comprises the electrode having a tapered cross section on a side facing the high voltage plasma, and wherein the second sealing ring has at least two electrodes, each at the side, which are assigned to the high-voltage plasma. has a surface portion which comprises more than a quarter of the total surface area of the electrodes, wherein the electrode of the first sealing ring is arranged between the two electrodes of the second sealing ring and wherein the two sealing rings do not touch.
- the seal may be adapted for sealing a bearing.
- Embodiments therefore also include a bearing with the seal for sealing the bearing, wherein the first seal ring is sealingly coupled to a bearing outer ring and the second seal ring is sealingly coupled to the bearing inner ring or a shaft which is frictionally coupled to the bearing inner ring.
- Embodiments may further provide a method of sealing a bearing gap of a bearing from a storage environment comprising a step of generating a first high voltage plasma between the bearing gap and the bearing environment and a step of generating a second high voltage plasma between the bearing gap and the bearing environment.
- Embodiments can therefore achieve an increase in efficiency and / or efficiency, in particular in applications on bearings.
- As flow losses, resource use, design and manufacturing effort, can be achieved by embodiments.
- Figure 2 shows two embodiments of sealing rings in interaction with a rolling bearing
- Figure 3 shows an alternative embodiment of two embodiments of sealing rings in interaction with a rolling bearing
- Figure 5 shows an alternative embodiment of two embodiments of sealing rings as a labyrinth seal in conjunction with a rolling bearing
- Figure 6 shows a further alternative embodiment of two embodiments of sealing rings as a labyrinth seal in conjunction with a rolling bearing
- Figure 1 illustrates two embodiments of sealing ring segments 100a; 100b.
- the seal ring segment 100a includes an electrode 110a configured to form a high voltage plasma with a first counter electrode 110b attached to an opposing seal ring segment 100b in a first intermediate space between the electrodes 110a, 110b and connected to a second one attached to the opposing seal ring segment 100b Counter electrode 110c in a second space between the electrodes 110a, 110c to form a high voltage plasma.
- the seal ring segment 100b includes a first electrode 110b and a second electrode 110c that is spaced from the first electrode 110b and forms a gap with the first electrode 110b, the first and second electrodes 110b, 110c being formed to terminate with one another opposite sealing ring segment 100a mounted counter electrode 110a to form a high voltage plasma.
- FIG. 2 shows a first sealing ring 100a with the first electrode 110a. Furthermore, FIG. 2 shows the second sealing ring 110b with a second electrode 110b and a third electrode 110c. The embodiment of Figure 2 also shows a mounted on the second sealing ring 100b fourth electrode 11 Od.
- the sealing ring 100a is non-positively and sealingly connected to a housing 130a, which in turn is non-positively coupled to a bearing outer ring 120a of a rolling bearing with the rolling elements 120b. In embodiments, positive connections, e.g. between the housing and the bearing outer ring 120a, occur.
- the sealing ring 100b is in the embodiment frictionally and sealingly coupled to a shaft 130b, which in turn is coupled to the bearing inner ring 120c of the rolling bearing.
- the electrodes 110a, 110b and 110c are aligned here in the axial direction, starting from the rotational axis of the roller bearing.
- the electrode 11Od is oriented in the radial direction as an example.
- at least one of the electrodes 110a may have a tapering cross-section on a side facing the high-voltage plasma, in particular the electrode 100a may also be pointed.
- at least one counter electrode 110b, 110c, HOd on the side facing the high voltage splasma may have a surface portion that is more than a quarter of the total surface area of the electrode 110b, 110c, HOd.
- the electrodes 110b, 110c, HOd may be configured flat, whereas the electrode 110a may be pointed and, in one embodiment, may be located centrally between the surface electrodes 100b, 100c and 100d.
- At least one of the electrodes 110a may be formed to connect with a plurality of counter electrodes 110b, 110c, 100d disposed in different directions to the electrode in a plurality of spaces between the electrode 110a and the plurality of counter electrodes 110b. 110c, lOOd each to form a high voltage plasma.
- the three high-voltage plasmas are identified by reference numeral 140.
- Embodiments may also include a seal ring composed of a plurality of seal ring segments 100a, 100b as described above and which may be formed in a plurality or in one piece.
- the seal ring may be composed of seal ring segments 100a.
- the sealing ring may also be integral and thus correspond only in its shape to a composition of segments.
- the electrodes 110a-d can then also be circular or annular, ie designed to be circumferential.
- Embodiments may further include a seal having a first seal ring as described above and a second seal ring as described above.
- the first sealing ring can correspond to an outer ring 100a and the second sealing ring can correspond to an inner ring 100b.
- the first seal ring 100a may then include the electrode 110a, wherein the electrode 110a may have a tapered cross section at a side facing the high voltage plasma.
- the second sealing ring 100b may comprise at least two electrodes 110b, 110c each having on the side facing the high voltage plasma a surface portion comprising more than a quarter of the total surface of the electrodes 110b, 110c, the electrode 110a of the first Seal ring 100a is disposed between the two electrodes 110b, 110c of the second seal ring 100b and wherein the two seal rings 100a, 100b do not touch.
- Embodiments may also include a corresponding bearing.
- the first sealing ring 100a can be sealingly coupled to a bearing outer ring 120a, this taking place in FIG. 2 via the housing 130a.
- the second seal ring 100 may be sealingly coupled to the bearing inner race 120c or a shaft 130b frictionally coupled to the bearing inner race 120c.
- the housing-side ring 100a of the labyrinth may include at least one electrode 110a, which may be formed as an extension / tip projecting into the labyrinth.
- the wave-side ring 100b of the labyrinth can be configured as a counter-electrode 110b, 110c, wherein the surface can be oriented both axially and radially.
- indicated by the grounding symbol that the sealing ring 100b may be grounded, that is, its electrodes correspond to the respective cathodes.
- a reverse polarity is also conceivable.
- FIG. 3 shows an alternative embodiment of two exemplary embodiments of sealing rings 100a, 100b in cooperation with a roller bearing 120a, 120b, 120c.
- FIG. 3 shows the same components as already explained above with reference to FIG. The same components are provided with the same reference numerals.
- Figure 3 shows a different orientation of the electrodes 110a-d.
- the electrode 110a may accordingly be arranged on the sealing ring or sealing ring segment 100a such that it is located on an extension which points in the axial direction toward the sealing ring or its segment 100a.
- the electrodes 110b, 110c of the sealing ring 100b, or its segment 100b may form a gap which has an opening in the axial direction which points towards or away from the sealing ring 100b or its segment 100b. It can be seen in principle from FIGS. 2 and 3 that the electrodes 110a-d can form one turn of a labyrinth seal, wherein the latter can have different orientations.
- FIG. 4 shows an embodiment of two embodiments of sealing rings 100a, 100b as a labyrinth seal in conjunction with a roller bearing 120a, 120b, 120c.
- Figure 4 shows the same components as Figures 2 and 3, wherein like reference numerals designate like components.
- FIG. 4 shows, on the sealing ring 100a, a further electrode 112a, which is parallel to the Electrode 110a is arranged. This forms an additional turn together with the additional counterelectrodes 112b, 112c, 112d.
- the individual high-voltage plasmas are not shown in FIG. 4 and in the following figures.
- a plurality of high-voltage plasmas can be arranged one behind the other via the labyrinth-like arrangement of the electrodes.
- the high-voltage plasmas can effectively prevent dirt particles from entering the bearing gap.
- the sealing rings 100a and 100b can be arranged without contact.
- both sealing rings 100a, 100b can thus have a plurality of electrodes which, with the respective counterelectrodes, form a labyrinthine structure within which a plurality of high-voltage plasmas can be formed between the electrodes and the counterelectrodes.
- Figure 5 illustrates an alternative embodiment of two embodiments of sealing rings 100a, 100b as a labyrinth seal in conjunction with a roller bearing 120a, 120b, 120c.
- Figure 5 shows an analog arrangement as Figure 4, wherein like reference numerals again denote like components.
- the reference numerals for the electrodes are not shown in FIG.
- a comparison of Figure 5 with Figure 4 shows that it is in the embodiment of Figure 5 is a same configuration per se as in Figure 4, but with a mirrored arrangement of the electrodes.
- FIG. 5 serves to clarify that, in embodiments, many orientations of the electrodes can occur and exemplary embodiments are not restricted to a specific number or orientation of the electrodes.
- FIG. 6 illustrates a further alternative embodiment of two embodiments of sealing rings 100a, 100b as a labyrinth seal in interaction with a roller bearing 120a, 120b, 120c.
- FIG. 6 again shows the same components using the same reference numerals as have already been explained in detail above.
- FIG. 6 shows a further orientation variant of an exemplary embodiment. Compared to FIG. 4, the orientation of the The electrodes of the sealing ring 100b now form gaps for the electrodes of the sealing ring 100a, which are open at the top and thus in turn form two turns of a labyrinth seal.
- FIG. 7 shows a flow diagram of an embodiment of a method for sealing.
- the method of sealing a bearing gap of a bearing from a bearing environment comprises a step 710 of generating a first high voltage plasma between the bearing gap and the bearing environment and a step 720 of generating a second high voltage plasma between the bearing gap and the bearing environment.
- Embodiments can thus contribute to a contradiction between the necessary increase in efficiency and efficiency on the one hand and the losses in terms of energetic and material parameters, such.
- Embodiments may be particularly suitable for high and very high speeds, since they produce no or at least greatly reduced heat loss or wear due to friction, the effects of which increase in proportion to the speed.
- embodiments without a consumption of material resources such. As lubricants, get along. Thus, embodiments may also be environmentally friendly.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110007474 DE102011007474B4 (de) | 2011-04-15 | 2011-04-15 | Dichtungsringsegment, Dichtungsring, Dichtung, Lager und Verfahren zum Abdichten eines Lagerspaltes |
PCT/EP2012/056556 WO2012140066A1 (de) | 2011-04-15 | 2012-04-11 | Dichtungsringsegment, dichtungsring, dichtung, lager und verfahren zum abdichten eines lagerspaltes |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2697544A1 true EP2697544A1 (de) | 2014-02-19 |
Family
ID=45992221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12715655.2A Withdrawn EP2697544A1 (de) | 2011-04-15 | 2012-04-11 | Dichtungsringsegment, dichtungsring, dichtung, lager und verfahren zum abdichten eines lagerspaltes |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2697544A1 (de) |
DE (1) | DE102011007474B4 (de) |
WO (1) | WO2012140066A1 (de) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0411178D0 (en) * | 2004-05-20 | 2004-06-23 | Rolls Royce Plc | Sealing arrangement |
GB0616916D0 (en) * | 2006-08-26 | 2006-10-04 | Secr Defence | An electrostatic precipitator |
DE102007029549B4 (de) * | 2007-06-25 | 2009-04-02 | Ab Skf | Vorrichtung |
DE102007048557B3 (de) * | 2007-10-09 | 2009-06-04 | Ab Skf | Anordnung zum Abdichten |
US20100284795A1 (en) * | 2007-12-28 | 2010-11-11 | General Electric Company | Plasma Clearance Controlled Compressor |
-
2011
- 2011-04-15 DE DE201110007474 patent/DE102011007474B4/de not_active Expired - Fee Related
-
2012
- 2012-04-11 WO PCT/EP2012/056556 patent/WO2012140066A1/de active Application Filing
- 2012-04-11 EP EP12715655.2A patent/EP2697544A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2012140066A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102011007474A1 (de) | 2012-10-18 |
WO2012140066A1 (de) | 2012-10-18 |
DE102011007474B4 (de) | 2012-11-15 |
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Legal Events
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17Q | First examination report despatched |
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Effective date: 20160125 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: F16J 15/43 20060101AFI20160115BHEP Ipc: F16J 15/40 20060101ALI20160115BHEP Ipc: F16C 33/80 20060101ALI20160115BHEP Ipc: B03C 3/10 20060101ALI20160115BHEP Ipc: F16C 33/82 20060101ALI20160115BHEP |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20160607 |