WO2011006471A1 - Agencement de palier comportant un palier lubrifié - Google Patents

Agencement de palier comportant un palier lubrifié Download PDF

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Publication number
WO2011006471A1
WO2011006471A1 PCT/DE2010/000779 DE2010000779W WO2011006471A1 WO 2011006471 A1 WO2011006471 A1 WO 2011006471A1 DE 2010000779 W DE2010000779 W DE 2010000779W WO 2011006471 A1 WO2011006471 A1 WO 2011006471A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
outlet
line
shaft
inlet
Prior art date
Application number
PCT/DE2010/000779
Other languages
German (de)
English (en)
Inventor
Johannes Bedenk
Original Assignee
Schaeffler Technologies Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2011006471A1 publication Critical patent/WO2011006471A1/fr

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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/6674—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to the amount supplied, e.g. gaps to restrict flow of the liquid
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/14—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load specially adapted for operating in water
    • 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
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/10—Construction relative to lubrication
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
    • F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/6688—Lubricant compositions or properties, e.g. viscosity
    • F16C33/6692—Liquids other than oil, e.g. water, refrigerants, liquid metal
    • 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
    • F16C2210/00—Fluids
    • F16C2210/10—Fluids water based

Definitions

  • the invention relates to a bearing assembly according to the preamble of claim 1 with a media-lubricated, so perfused by a lubricant, bearing.
  • media-lubricated bearings ie bearings through which a lubricant, such as, in particular, water
  • a lubricant such as, in particular, water
  • the bearing cleaned, so freed of particles and impurities lubricating medium, in particular water, supply.
  • rotary separators are known.
  • filters are known, which are upstream of the camp upstream. Such filters require maintenance at regular intervals because the filters block tend. Such regular maintenance proves to be cumbersome, for example, in a bearing arrangement for the main shaft of a sea current power plant, since the filter is not readily accessible.
  • the bearing arrangement comprises a shaft which is rotatably mounted in a bearing housing, a bearing through which a lubricant, namely water flows, bearing, with which the shaft is mounted on the bearing housing, and an axially, ie parallel to the axis of rotation of the shaft, aligned Inlet opening for the lubricating medium, which develops a suction on the surrounding water as the shaft rotates.
  • a filter In an imaginary extension of the axis of rotation is a filter and this downstream provided a filter pump, wherein the filter pump pumping water through the filter into the first axially, then radially, away from the axis of rotation of the shaft feed line to the two bearings to be lubricated.
  • the fluid upstream filter requires a high pumping capacity of the filter pump, especially if the filter is dirty, otherwise the lubrication of the bearing is affected by the water or fails.
  • the Lageran- order has a lot of space in the axial direction.
  • the bearing arrangement comprises a shaft which is rotatably mounted in a bearing housing, a bearing through which the water flows, with which the shaft is mounted on the bearing housing, and a radially directed to the axis of rotation of the shaft inlet opening for the water, which is radially in sections , So perpendicular to the axis of rotation, directed supply line is guided to the camp.
  • the bearing assembly further includes an outlet port for particulate-laden water and a rotatably-constrained conveyor which is aligned as being tapered toward the shaft and aligned with the axis of rotation of the shaft Funnel is formed, wherein the funnel unfolds a conveying effect.
  • the inlet opening for the supply line is provided at the narrowest point of the funnel.
  • the outlet opening is formed from the inlet opening in the radial and in the axial direction spaced and provided at the widest point of the funnel.
  • the outlet opening is conically widening and directed substantially radially. Particles entrained in the water are guided along the wall of the funnel, which tapers conically away from the shaft, to the outlet opening, provided that they do not accidentally enter the inlet opening of the supply line.
  • the inlet opening divides in the region of a branch into an outlet line leading to the outlet opening and into the feed line, that the outlet line tapers towards the outlet opening, and that adjacent in the feed line at the junction a filter element is arranged.
  • the outlet line with the outlet opening and the supply line leading to the bearing have a common inlet, namely the inlet opening.
  • the common upstream of the inlet opening and the inlet upstream inlet splits in the branching in the outlet and in the supply line.
  • the outlet line leading to the outlet opening and the feed line leading to the bearing have a common upstream section, namely the inflow opening, so that the lubricant medium entering through the inflow opening, when guided through the outlet line to the outlet opening, is in the region the branch is guided past the beginning section of the supply line with the filter element.
  • the tapered outlet conduit permits the formation of a pressure difference between the inlet port and the particle-laden partial flow outlet port that bypasses the bearing so that the particles can exit under pressure through the outlet port, and particularly at low shaft speeds Particles can be safely routed.
  • the branching off in the region of the branch from the inlet port supply line also has an overpressure.
  • the filter element arranged in the supply line adjoining the branch is flown by the partial flow guided in the outlet line, wherein the partial flow guided in the outlet line cleans the filter element and at least directs coarser impurities from the filter element to the outlet opening. This extends the maintenance time for the filter element.
  • the filter element may comprise a fibrous filter mass or a coarse sieve.
  • the outlet line can taper over its entire extension between the branch and the outlet opening, in particular conically narrowing its flow cross-section.
  • the outlet line tapers in particular in the region of the branch.
  • the flow cross-section of the outlet line narrows in the immediate vicinity of the inlet of the supply line, ie also in the vicinity of the filter element, so that close to the filter element ment a strong pressure difference occurs, which leads to the outlet opening, and facilitates the exemption of the filter element of coarser particles.
  • the outlet line is designed to be essentially circumferential in sections.
  • the outlet line is designed as a section-wise annular channel, in particular can be more annular channels, especially two ring channels provide, each of which rotates the shaft by an approximately half circle circumference, ie by about 170 °, and having an axially away from the bearing outlet opening.
  • the particulate-laden lubricant then exits approximately tangentially to the circumferential direction of the shaft so that the particles no longer enter the region from which the delivery element delivers the lubricant toward the inlet port.
  • the promotion of the particles at the outlet opening away from the bearing and in particular away from the inlet opening is further assisted by the fact that the outlet line first tapers in the region of the outlet opening in order to allow a high pressure difference, and then spreads.
  • the conveying element comprises a substantially flat conveyor disc having guide surfaces for deflecting the flow, and that the inlet opening is aligned towards an edge of the conveyor disc.
  • the flat design of the conveying element through the conveyor disc allows only a small extension of the conveying element in the axial direction.
  • the guide surfaces and the orientation of the inlet opening to the edge of the conveyor disc ensure that even at low speed of the shaft sufficient supply of the bearing with the lubricant is possible.
  • the inlet opening is formed as an inlet of an inlet line pointing essentially radially onto the conveyor element.
  • the inlet line is a common line into which the lubricant passes through the inlet opening, before it reaches the branch arrives.
  • the inlet conduit allows the inclusion of that fraction of the lubricating medium that has been accelerated away from the conveyor by the shaft.
  • the supply line, the branching and the outlet line with the outlet opening are arranged on the bearing receptacle.
  • the supply line, the branching and the outlet line are each formed as bores in the body of the bearing receiver. It is understood that the supply line, the branching and the discharge line can be provided in a structural unit which is fixedly arranged on the surrounding structure, so that the mounting of the shaft to the surrounding structure is simplified.
  • FIG. 1 shows a schematic cross section through an exemplary embodiment of a bearing arrangement according to the invention.
  • the bearing assembly comprises a shaft 2 which is rotatably mounted about a rotation axis 3 in a bearing housing, not shown, of a
  • Lubricating medium namely water
  • flowed through bearing 1 with which the shaft 2 is mounted on the bearing housing, a non-rotatable with the shaft 2 conveying element 4, a relative to the rotation axis 3 radially directed inlet opening 5 for the water, an outlet 6 for particle-laden water, and a supply line 7 for the water to the camp first
  • the bearing 1 is designed as a rolling bearing.
  • the shaft 2 is rotatably connected to a rotor 8 of a plant not shown for power generation.
  • the rotor 8 is in particular part of ocean current power plant, in which the rotor 8 is rotated by the ocean current in rotation about the axis of rotation 3.
  • an axial direction aligned parallel to the rotation axis 3 and a radial direction perpendicular to the rotation axis 3 can be defined.
  • the water flows in the axial direction, ie substantially parallel to the axis of rotation 3 of the shaft 2, at.
  • the bearing 1 supports an end portion 9 of the shaft 2.
  • the conveying element 4 is arranged rotationally fixed.
  • the conveying element 4 comprises a substantially flat conveyor disc 10, on whose, the inflowing water facing side 11 guide surfaces 12 are provided for deflecting the flow, the inlet opening 5 is aligned to an edge of the conveyor disc 10.
  • the inlet opening 5 and the conveyor disc are arranged axially aligned at the same height.
  • the inlet opening 5 is arranged on an inlet line 13 pointing essentially radially onto the conveyor element 4, in particular onto the edge of the conveyor plate 10.
  • two inlet lines are shown, one of which is provided with the reference numeral 13 '.
  • the two inlet lines are of similar construction and protrude from the bearing receiver radially in the direction of the shaft 2 or the axis of rotation 3.
  • the inlet duct 13 has a substantially circular cross section along its entire extension.
  • the inlet opening 5, which is extended radially through the inlet line 13, in the direction of the axis of rotation 3, is divided in the region of a branch 14 into an outlet line 15 leading to the outlet opening 6 and into the feed line 7.
  • a bifurcation of the inlet opening occurs 5 or the inlet line 13, wherein the water entering the inlet opening 5 or being located in the inlet line 13 passes either into the outlet line 15 towards the outlet opening 6 or into the feed line 7 towards the bearing 1.
  • the water is deflected by approximately 90 ° and passes either axially into the feed line 7 or axially into the outlet line 15.
  • the outlet line 15 has only a small extent in the axial direction and surrounds the shaft 2 substantially as an annular channel.
  • the two inlet ducts one of which is provided with the reference numeral 13 ', each have an outlet duct, one of which is provided with the reference symbol' 15 ', the two outlet ducts being of identical design.
  • the outlet lines 15 orbit the shaft 2 substantially by an approximate semicircle, that is an angle of approximately 170 °, with a small offset in the axial direction, away from the bearing 1.
  • the outlet conduit 15 tapers towards the outlet port 6 so that the flow area of the outlet conduit 15 between the branch 14 and the outlet port narrows.
  • This constriction is discontinuous, wherein the constriction is reinforced in the region of the outlet opening 6.
  • the outlet port 6 is oriented so that the water laden with the particles is discharged substantially tangentially to the circumference of the shaft 2, so that the water at the outlet port 6 substantially perpendicular to the plane of the paper of the illustration of FIG Outlet opening 6 emerges.
  • the outlet line 15 also tapers in the area adjoining the branch 14, so that water which has passed from the branch 14 into the beginning of the outlet line 15 passes through a narrowed cross-section and experiences an acceleration which causes a pressure increase in the region of the branch 14 and causes a suction in the outlet conduit 15. Between the narrowed cross-section in the rich branching 14 and the outlet 6, the cross section of the outlet 15 tapers little and may possibly remain constant.
  • a filter element 16 is arranged adjacent to the branching 14, so that water entering from the branching 14 into the supply line 7 must first pass through the filter element 16.
  • the filter element 16 comprises a sieve with a cartridge of a finer filter material, in particular a filter fleece.
  • the suction in the region of the branch 14 towards the outlet duct 15 causes material held in the filter element 16, in particular coarser particles, to be drawn out of the filter element 16 and led into the outlet duct 15, so that the filter element 16 is partially cleaned.
  • the supply line 7 comprises a first axial section 17, which merges essentially at an angle of approximately 90 ° into a second, radial section 18, wherein the second section 18 leads to the bearing 1. Water that has flowed through the bearing 1, is continued by a radially away from the shaft 2 facing outflow 19.
  • the feed line 7, the branch 14 and the outlet line 15 with the outlet opening 6 are arranged on the bearing receptacle, in particular the feed line 7, the branch 14 and the outlet line 15 are formed with the outlet opening 6 as bores in a component, wherein the component also has a Part of the bearing 1 and the outflow 19 includes, and wherein the component is fixed to a non-illustrated surrounding construction of the shaft 2, so that the component with the bearing receptacle on which the shaft 2 is rotatably mounted, is fixed.
  • the inlet opening 5 was designed as an inlet of the inlet line 13. It is understood that the inlet line 13 can be omitted, so that water that enters the inlet opening 5, di- is located directly in the branch 14 and can get into either the outlet 15 or the supply line 7. In this case, as in the exemplary embodiment described above, the outlet line 15 and the feed line 7 have a common inlet upstream of the inlet, namely the inlet opening 5.
  • the inlet line 13 has a circular, in particular constant flow cross-section along its extension. It is understood that the flow cross-section of the inlet line 13 can also taper towards the branch 14. It is further understood that it can also be provided in the supply line 7 that the flow cross-section can taper in the direction of the bearing 1, in particular in the axially directed first section 17 of the feed line 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

L’invention concerne un agencement de palier destiné à un palier lubrifié (1) et comprenant un arbre (2) qui est monté pivotant autour d’un axe de pivotement (3) dans un logement de palier, un palier (1) parcouru par un lubrifiant, notamment de l’eau, et grâce auquel l’arbre (2) est monté sur le logement de palier, un élément de refoulement (4) solidaire en rotation avec l’arbre (2), une ouverture d’admission (5) orientée radialement pour le lubrifiant, une ouverture d’évacuation (6) pour le lubrifiant chargé en particules, et une conduite d’amenée (7) pour l’alimentation du palier (7) en lubrifiant. L’invention vise à proposer un agencement de palier destiné à un palier lubrifié qui soit configuré de manière simple et qui soit d’entretien facile. A cette fin, l’ouverture d’admission (5) se divise dans la zone d’un embranchement (14) en une conduite d’évacuation (15) menant à l’ouverture d’évacuation (6) et en la conduite d’amenée (7), la conduite d’évacuation (15) s’amincissant en direction de l’ouverture d’évacuation (6) et un élément filtrant (16) étant disposé dans la conduite d’amenée (7) à proximité de l’embranchement (14).
PCT/DE2010/000779 2009-07-17 2010-07-06 Agencement de palier comportant un palier lubrifié WO2011006471A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009033624.9 2009-07-17
DE102009033624A DE102009033624A1 (de) 2009-07-17 2009-07-17 Lageranordnung mit einem mediengeschmierten Lager

Publications (1)

Publication Number Publication Date
WO2011006471A1 true WO2011006471A1 (fr) 2011-01-20

Family

ID=42732702

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2010/000779 WO2011006471A1 (fr) 2009-07-17 2010-07-06 Agencement de palier comportant un palier lubrifié

Country Status (2)

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DE (1) DE102009033624A1 (fr)
WO (1) WO2011006471A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216520A1 (de) 2014-08-20 2016-02-25 Schaeffler Technologies AG & Co. KG Selbstreinigende Filteranordnung und Wälzlageranordnung, sowie Verfahren zur Selbstreinigung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021158231A1 (fr) * 2020-02-07 2021-08-12 Itt Manufacturing Enterprises Llc Ensemble filtre à huile en deux parties pour pompes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05199700A (ja) * 1992-01-21 1993-08-06 Yazaki Corp 軸貫流型キャンドポンプ
JP2003042159A (ja) * 2001-07-27 2003-02-13 Thk Co Ltd 潤滑液の浄化機能を備えた動圧軸受装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003618A1 (de) 2007-01-18 2008-07-24 Voith Patent Gmbh Energieerzeugungsanlage, angetrieben durch eine Wind- oder Wasserströmung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05199700A (ja) * 1992-01-21 1993-08-06 Yazaki Corp 軸貫流型キャンドポンプ
JP2003042159A (ja) * 2001-07-27 2003-02-13 Thk Co Ltd 潤滑液の浄化機能を備えた動圧軸受装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014216520A1 (de) 2014-08-20 2016-02-25 Schaeffler Technologies AG & Co. KG Selbstreinigende Filteranordnung und Wälzlageranordnung, sowie Verfahren zur Selbstreinigung

Also Published As

Publication number Publication date
DE102009033624A1 (de) 2011-01-20

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