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WO1995008067A1 - Systeme de palier radial a butee - Google Patents

Systeme de palier radial a butee Download PDF

Info

Publication number
WO1995008067A1
WO1995008067A1 PCT/IB1994/000279 IB9400279W WO9508067A1 WO 1995008067 A1 WO1995008067 A1 WO 1995008067A1 IB 9400279 W IB9400279 W IB 9400279W WO 9508067 A1 WO9508067 A1 WO 9508067A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
pressure
chamber
radial
collar
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.)
Ceased
Application number
PCT/IB1994/000279
Other languages
English (en)
Inventor
Thomas Arvidsson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kvaerner Hymac Inc
Original Assignee
Kvaerner Hymac Inc
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 Kvaerner Hymac Inc filed Critical Kvaerner Hymac Inc
Publication of WO1995008067A1 publication Critical patent/WO1995008067A1/fr
Anticipated expiration legal-status Critical
Priority to US08/617,338 priority Critical patent/US5795073A/en
Priority claimed from US08/617,338 external-priority patent/US5795073A/en
Ceased legal-status Critical Current

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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0629—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion
    • F16C32/064—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a liquid cushion, e.g. oil cushion the liquid being supplied under pressure
    • F16C32/0644—Details of devices to control the supply of liquids to the 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0662—Details of hydrostatic bearings independent of fluid supply or direction of load
    • F16C32/067—Details of hydrostatic bearings independent of fluid supply or direction of load of bearings adjustable for aligning, positioning, wear or play
    • 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
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F16C32/0681—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load
    • F16C32/0696—Construction or mounting aspects of hydrostatic bearings, for exclusively rotary movement, related to the direction of load for both radial and axial load

Definitions

  • the present invention relates to a radial and thrust bearing system in accordance with the preamble to the accompanying claim 1.
  • the thrust bearing system according to said PCT-publication includes a hydrostatic thrust bearing on each side of a flanged pressure plate, which is rigidly connected to or integrally manufactured with the axle. Even though this known thrust bearing system fulfills its task fully satisfactorily, a desire to reduce the complexity of the bearing system remains.
  • the invention enables direct power transmission between bearing housings and thrust and axial bearings, i.e. fewer components and better concentricity than was previously possible. Furthermore, a reduction of the length of the power flow is achieved by means of the invention, i.e. reduced extension and compression respectively of the bearing parts, which is significant when the radial and axial load is great and the precision demands are high.
  • the invention also brings about a closer positioning of the thrust and radial bearings relative each other, which reduces the risk of vibrations.
  • the reference number 1 indicates an axle, which is mounted in a bearing housing 2.
  • the bearing device includes two hydrostatic radial and thrust bearings 3, 4, axially movable relative to the bearing housing 2.
  • Each thrust bearing includes a flange 5 and 6 respectively, which is rigidly connected to the axle 1, and a collar chamber bearing 7, 8.
  • the collar chamber bearings 7, 8 are sealed from the bearing house by means of gasket rings 9.
  • the connection between the axle 1 and each flange is accomplished by means of a hydraulic bush of familiar type, but can be achieved through other means.
  • the flange 5 and 6 respectively defines a pressure surface 5a,6a in each thrust bearing 3, 4, which pressure surface forms an angle with the axle 1. Further explanation of what is achieved through this solution will follow. According to the invention, the surfaces 5a, 6a are turned in mutually opposite directions.
  • the collar chamber bearings 7, 8 display a surface 7a and 8a respectively facing the pressure surface 5a, 6a.
  • the collar chamber 7b communicates through channels 7c, 2a in the collar chamber bearing 7 and the bearing housing, respectively, and over a circuit 10 with a hydraulic fluid source in the drawing, preferably a constant flow pump.
  • the collar chamber 8b communicates through channels 8c, 2b and a circuit 11 with an exhibited hydrau ⁇ lic fluid source, also preferably a constant flow pump.
  • the flow in the circuits 10, 11 is indicated as C and D respectively on the drawing.
  • Internal and external tightening slots are formed on each side of the collar chambers 7b and 8b, respectively, by means of which slots the supplied hydraulic fluid is evacuated under considerable pressure fall, which produces the necessary hydraulic pressure in the collar chambers 7b, 8b to support a radial and axial load on the axle 1.
  • the hydraulic fluid flows E and G from the internal tightening slots flow over a cylindrically shaped slot 12 between the axle 1 and each collar chamber bearing 7, 8 and via a channel 2c in the bearing housing 2.
  • the hydraulic fluid flows F and H from the external tightening slots flow over channels 2d and 2e in the bearing housing 2.
  • each collar chamber bearing 7, 8 is applied to its adherent pressure surface 5a and 6a by means of this pressure.
  • the chambers 13, 14 are sealed by means of gasket rings 9.
  • the pilot valve 17 is supplied with hydraulic fluid over a circuit 18 from a hydraulic pump 20, which is controlled by a motor.
  • the pilot valve 17 is arranged to be controlled by means 21, which senses the axial position of the axle 1.
  • the output controls the slide of the pilot valve 17 over an amplifier 22.
  • the slide of the pilot valve 17 is influenced by the output from the sensor means 21 in the way that the slide is forced out of its normal balanced position, thereby redistributing pressure and quantity of fluid to the collar chambers 13, 14 so that a balanced position is reinstated.
  • a permanent axial displacement of the axle 1 is desirable, i.e. a new balanced position for the axle, this can be achieved through mechanical alteration of the reference for the position sensor means 21, e.g. by means of a stepping motor or by electrically influencing the output of the position sensor means 21, altering the amplification factor for the amplifier 22.
  • the function of the pilot valve 17 can alternatively be performed by microprocessor controlled means for control of pressure and of supplied quantity of fluid in each collar chamber 13, 14. The microprocessor continuously receives information regarding the axial position of the axle 1.
  • hydrostatic thrust and radial bearings can be maintained in a mechanically prestressed position by means of a spring 23 to avoid separation of the pressure surfaces 5a, 7a and 6a, 8a when the system is not under pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Support Of The Bearing (AREA)

Abstract

Système de palier radial à butée à deux paliers hydrostatiques (3, 4) radiaux à butée, mobiles dans le sens axial par rapport à un logement (2) de palier qui les entoure. Chaque palier radial à butée comprend une bride (5, 6) reliée à l'axe (1). La bride comprend une surface d'appui (5a, 6a) et un palier (7, 8) de chambre de rondelle pourvu d'une surface (7a, 8a) opposée à la surface d'appui (5a, 6a), dans laquelle se trouve une gorge (7b, 8b) de rondelle, la surface (7a, 8a) et la surface d'appui (5a, 6a) formant ensemble des fentes de serrage interne et externe de chaque côté de la gorge de rondelle. La surface d'appui et la rondelle forment ensemble une chambre (7b, 8b) de rondelle dans laquelle un fluide hydraulique est introduit sous pression à partir d'une source de fluide hydraulique. Le palier (7, 8) de la chambre de rondelle constitue, avec le logement (2) de palier, une chambre (13, 14) qui est soumise à une pression hydraulique et qui comprime le palier (7, 8) de la chambre de rondelle (7, 8) contre la surface d'appui (5a, 6a), les deux paliers (7, 8) de chambre de rondelle étant comprimés dans des directions réciproquement opposées. Un moyen, tel qu'une soupape pilote (17), est agencé de façon à agir conjointement avec un émetteur/détecteur (21) servant à détecter la position de l'axe (1) par rapport au logement (2) de palier, afind de réguler la quantité de fluide hydraulique alimentant la chambre de rondelle respective (13, 14) ainsi que la pression hydraulique agissant sur le palier respectif (3, 4), ce qui permet à des charges d'importance variable d'être appliquées dans des directions variables sur l'axe (1) tandis que l'aptitude de déplacement axial de ce dernier est maintenue. Au moins une bride (5, 6) peut être démontée de l'axe (1), et les surfaces d'appui (5a, 6a) sont orientées dans des directions opposées, chacune formant un angle principalement non perpendiculaire par rapport à l'axe (1).
PCT/IB1994/000279 1993-09-17 1994-09-16 Systeme de palier radial a butee Ceased WO1995008067A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/617,338 US5795073A (en) 1993-09-17 1996-03-18 Radial and thrust bearing system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9303078A SE9303078L (sv) 1993-09-17 1993-09-17 Radial- och axiallagringssystem
SE9303078-1 1993-09-17
US08/617,338 US5795073A (en) 1993-09-17 1996-03-18 Radial and thrust bearing system

Publications (1)

Publication Number Publication Date
WO1995008067A1 true WO1995008067A1 (fr) 1995-03-23

Family

ID=26661846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB1994/000279 Ceased WO1995008067A1 (fr) 1993-09-17 1994-09-16 Systeme de palier radial a butee

Country Status (3)

Country Link
CA (1) CA2171823A1 (fr)
SE (1) SE9303078L (fr)
WO (1) WO1995008067A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013084A1 (fr) * 1995-10-02 1997-04-10 A.W. Chesterton Co. Joint d'etancheite et/ou palier rotatif
EP0962668A1 (fr) * 1998-05-16 1999-12-08 Voith Sulzer Papiertechnik Patent GmbH Rouleau de pression

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106763192B (zh) * 2017-03-31 2022-05-27 河北工业大学 可承受径向和轴向力且具有自动换向供油功能的浮环轴承

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1482348A (fr) * 1966-06-03 1967-05-26 Sealol Palier radial et de butée supporté par un fluide
GB1149853A (en) * 1965-02-04 1969-04-23 Premier Prec Ltd Improvements in or relating to bearing means
US3674355A (en) * 1970-05-28 1972-07-04 Process Services Inc Gas lubricated bearing
WO1988003611A1 (fr) * 1986-11-12 1988-05-19 Cellwood Machinery Ab Systeme de palier de butee hydrostatique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1149853A (en) * 1965-02-04 1969-04-23 Premier Prec Ltd Improvements in or relating to bearing means
FR1482348A (fr) * 1966-06-03 1967-05-26 Sealol Palier radial et de butée supporté par un fluide
US3674355A (en) * 1970-05-28 1972-07-04 Process Services Inc Gas lubricated bearing
WO1988003611A1 (fr) * 1986-11-12 1988-05-19 Cellwood Machinery Ab Systeme de palier de butee hydrostatique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997013084A1 (fr) * 1995-10-02 1997-04-10 A.W. Chesterton Co. Joint d'etancheite et/ou palier rotatif
AU704808B2 (en) * 1995-10-02 1999-05-06 A.W. Chesterton Company Rotary seal and/or bearing
US6210103B1 (en) 1995-10-02 2001-04-03 A. W. Chesterton Co. Rotary seal and/or bearing
EP0962668A1 (fr) * 1998-05-16 1999-12-08 Voith Sulzer Papiertechnik Patent GmbH Rouleau de pression
US6203480B1 (en) 1998-05-16 2001-03-20 Voith Sulzer Papiertechnik Patent Gmbh Pressure processing roll

Also Published As

Publication number Publication date
SE9303078L (sv) 1995-03-18
SE9303078D0 (sv) 1993-09-17
CA2171823A1 (fr) 1995-03-23

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