WO2019214883A1 - Dispositif palier doté d'un arbre structuré - Google Patents

Dispositif palier doté d'un arbre structuré Download PDF

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Publication number
WO2019214883A1
WO2019214883A1 PCT/EP2019/058619 EP2019058619W WO2019214883A1 WO 2019214883 A1 WO2019214883 A1 WO 2019214883A1 EP 2019058619 W EP2019058619 W EP 2019058619W WO 2019214883 A1 WO2019214883 A1 WO 2019214883A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
shaft
storage area
region
bearing device
Prior art date
Application number
PCT/EP2019/058619
Other languages
German (de)
English (en)
Inventor
Thomas Lang
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2019214883A1 publication Critical patent/WO2019214883A1/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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles
    • F16C3/03—Shafts; Axles telescopic
    • F16C3/035—Shafts; Axles telescopic with built-in bearings
    • 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
    • F16C17/24—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety
    • F16C17/243—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety related to temperature and heat, e.g. for preventing overheating
    • 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/02—Sliding-contact bearings
    • 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
    • F16C33/74—Sealings of sliding-contact bearings
    • F16C33/741—Sealings of sliding-contact bearings by means of a fluid
    • F16C33/748—Sealings of sliding-contact bearings by means of a fluid flowing to or from the sealing gap, e.g. vacuum seals with differential exhaust
    • 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
    • F16C37/00—Cooling of bearings
    • F16C37/002—Cooling of bearings of fluid bearings
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/024—Sliding-contact bearings for exclusively rotary movement for radial load only with flexible leaves to create hydrodynamic wedge, e.g. radial foil bearings
    • 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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps

Definitions

  • the invention relates to a bearing device with a structured shaft and a turbomachine, in particular a flow compressor with a
  • Fast-rotating rotors are stored, inter alia, with gas bearings (usually working medium air, ie air bearings).
  • gas bearings usually working medium air, ie air bearings.
  • gas bearings usually working medium air, ie air bearings.
  • bearings which are pressurized there are classic so-called “externally pressurized bearings”, i. Bearings which are pressurized), “herringbone grooved bearings”, i. Radial bearing with very fine grooves in the lO-lOOpm range in the form of an arrow on the shaft or “spiral grooved bearings", i. Thrust bearing with spiral grooves.
  • titaniumted pad bearings i.
  • the subject of the present invention is a bearing device with a housing; at least one disposed in the housing foil bearing and / or Kippsegmentlager for supporting a rotating shaft; and the shaft, which in a storage area of the at least one foil bearing and / or
  • Kippsegmentlagers is mounted, wherein the shaft has a defined structuring in the storage area for the defined or targeted management of a working fluid through the bearing area upon rotation of the shaft.
  • the present invention furthermore relates to a turbomachine, in particular a flow compressor with a bearing device described above.
  • the foil bearing and / or the tilting pad bearing can be designed as a radial bearing or thrust bearing.
  • the working medium is preferably air.
  • the tilting pad bearing can be an air-lubricated tilting pad bearing.
  • a “defined line” is to be understood as meaning a defined fluid flow.
  • the defined line or current is determined upon rotation of the shaft, i. in the operation of the device, for example.
  • the defined structuring is preferably designed such that upon rotation of the shaft, i. in operation, the working fluid is passed from a first area to a second area defined.
  • each surface in the broadest sense has a kind of "structuring".
  • the structured region means a region which has a defined structure which differs from the surrounding region in order to generate a defined conduction of a working fluid through the bearing region upon rotation of the shaft.
  • the defined line of the working fluid can in this case by a part of the storage area or through the entire Storage area done.
  • the defined structuring preferably has defined grooves or grooves.
  • the grooves or grooves preferably extend at least partially or completely relative to a rotation axis of the shaft in an angular range of greater than 0 ° to less than 90 ° and / or less than -0 ° to greater than -90 ° and / or arrow-shaped and / or V -shaped and / or helical.
  • first region and the second region are arranged relative to the foil bearing and / or tilting-segment bearing opposite outside of the bearing region.
  • the axial direction corresponds to the axis of rotation or longitudinal axis of the shaft.
  • the first region and / or the second region may be adjacent to the foil bearing and / or
  • Tilting pad storage be arranged. That is, in other words, that
  • Foil bearing and / or tilting pad bearing is flowed through axially by the working fluid. This allows an efficient cooling flow in the axial direction, i. through the storage area or bearing gap from one side to the other side of the
  • Foil bearing and / or Kippsegmentlagers are generated.
  • the film bearing and / or tilting pad bearing in the storage area has at least one vent opening for discharging the working fluid from the storage area.
  • the first region can have two first partial regions which are arranged opposite one another relative to the film bearing and / or tilting pad bearing. In this way, an efficient cooling flow can be generated from a cooler region outside the foil bearing and / or tilting pad bearing into or through the bearing region or bearing gap, which is derived from the bearing region or bearing gap by means of the ventilation opening.
  • the housing is designed in such a way and the foil bearing and / or tilting pad bearing is arranged in the housing in such a way that in the axial direction a defined pressure gradient at the foil bearing and / or tilting pad bearing and / or a defined dynamic pressure outside the foil bearing and / or or tilting pad bearing.
  • the foil bearing and / or tilting pad bearing is preferably designed as a radial bearing and the grooves of the structuring preferably extend helically.
  • the defined structuring is designed such that a bearing property, in particular the damping and / or the rigidity of the foil bearing and / or tilting pad bearing in dependence on a
  • FIG. 1 shows a schematic cross section of a bearing device according to an embodiment of the invention
  • Fig. 2 is a schematic cross section of a bearing device according to another embodiment of the invention.
  • a bearing device according to the invention is provided in its entirety by the reference numeral 10.
  • the bearing device 10 has housing 12, two foil bearings 14 and a shaft 16.
  • the film bearing 14 is accommodated in a bearing receptacle 18 of the housing 12.
  • the shaft 16 is rotatably mounted about a rotation axis 22 by means of the foil bearings 14 in bearing areas 20 of the foil bearings 14.
  • the shaft 16 has a defined structuring 24 in the storage areas 20. The defined
  • Structuring 24 has defined grooves 26, which extend in an arrow shape and have an angle of + -45 ° to the axis of rotation 22 of the shaft 16.
  • the defined structuring 24 is designed in such a way that, with a corresponding rotation of the shaft 16, a working fluid, which in this case is air, is guided from a first region 28 to a second region 30.
  • a working fluid which in this case is air
  • the first area 28 outside the storage area 20 and the second area 30 inside, in particular substantially centrally within the storage area 20 are arranged.
  • the foil bearings 14 each have a bearing area 20
  • Vent 34 on. Accordingly, by means of the defined structuring 24 on the shaft 16, a defined line of a working fluid or air (and thus a cooling flow) in the direction of arrow 36 with corresponding rotation of the shaft 16, i. generated during operation.
  • FIG. 2 shows a further embodiment of the bearing device 10, wherein the grooves 26 of the shaft 16 are substantially parallel and at an angle of + 45 ° to the axis of rotation 22 of the shaft 16.
  • the working fluid or the air is guided with a corresponding rotation of the shaft 16 in the direction of arrow 36 from the first region 28 to the relative to the film bearing 14 opposite arranged second region 30 defined.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Support Of The Bearing (AREA)

Abstract

La présente invention concerne un dispositif palier (10) comprenant : un logement (12) ; au moins un palier à feuilles (14) disposé dans le logement et / ou un palier à patins oscillants pour le montage d'un arbre rotatif (16) ; et l'arbre, qui est monté dans une zone de palier (20) de l'au moins un palier à feuilles et / ou un palier à patins oscillants, l'arbre comportant dans la zone de palier une formation de motifs (24) définie pour la conduction définie d'un fluide de travail à travers la zone de palier lors de la rotation de l'arbre.
PCT/EP2019/058619 2018-05-08 2019-04-05 Dispositif palier doté d'un arbre structuré WO2019214883A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018207114.4 2018-05-08
DE102018207114.4A DE102018207114A1 (de) 2018-05-08 2018-05-08 Lagereinrichtung mit einer strukturierten Welle

Publications (1)

Publication Number Publication Date
WO2019214883A1 true WO2019214883A1 (fr) 2019-11-14

Family

ID=66223671

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/058619 WO2019214883A1 (fr) 2018-05-08 2019-04-05 Dispositif palier doté d'un arbre structuré

Country Status (2)

Country Link
DE (1) DE102018207114A1 (fr)
WO (1) WO2019214883A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035403B2 (en) * 2019-04-18 2021-06-15 Hanwha Powersystems Co., Ltd Radial force support apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022124630A1 (de) 2022-09-26 2024-03-28 Zf Cv Systems Global Gmbh Luftlageranordnung für Brennstoffzellen-Kompressoren mit einem Expander

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896975A (en) * 1988-12-13 1990-01-30 Allied-Signal Inc. Ceramic air bearing shaft
SU1733743A1 (ru) * 1988-03-01 1992-05-15 Мгту Им.Н.Э.Баумана Опора высокооборотного вала
US5215385A (en) * 1990-03-16 1993-06-01 Ide Russell D Low-profile disk drive motor with deflecting-pad bearings
JPH06313423A (ja) * 1993-04-28 1994-11-08 Mitsubishi Heavy Ind Ltd 動圧気体軸受
JP2005265010A (ja) * 2004-03-17 2005-09-29 Ishikawajima Harima Heavy Ind Co Ltd 動圧気体軸受
DE102014201563A1 (de) 2014-01-29 2015-07-30 Schaeffler Technologies AG & Co. KG Aerodynamisches Luftlager und Verfahren zu dessen Herstellung
CN105333004A (zh) * 2015-11-25 2016-02-17 湖南大学 一种超声波气体动压轴承
WO2016184413A1 (fr) * 2015-05-19 2016-11-24 罗立峰 Générateur à turbine à gaz miniature

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1733743A1 (ru) * 1988-03-01 1992-05-15 Мгту Им.Н.Э.Баумана Опора высокооборотного вала
US4896975A (en) * 1988-12-13 1990-01-30 Allied-Signal Inc. Ceramic air bearing shaft
US5215385A (en) * 1990-03-16 1993-06-01 Ide Russell D Low-profile disk drive motor with deflecting-pad bearings
JPH06313423A (ja) * 1993-04-28 1994-11-08 Mitsubishi Heavy Ind Ltd 動圧気体軸受
JP2005265010A (ja) * 2004-03-17 2005-09-29 Ishikawajima Harima Heavy Ind Co Ltd 動圧気体軸受
DE102014201563A1 (de) 2014-01-29 2015-07-30 Schaeffler Technologies AG & Co. KG Aerodynamisches Luftlager und Verfahren zu dessen Herstellung
WO2016184413A1 (fr) * 2015-05-19 2016-11-24 罗立峰 Générateur à turbine à gaz miniature
CN105333004A (zh) * 2015-11-25 2016-02-17 湖南大学 一种超声波气体动压轴承

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11035403B2 (en) * 2019-04-18 2021-06-15 Hanwha Powersystems Co., Ltd Radial force support apparatus

Also Published As

Publication number Publication date
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