GB2016609A - Bearing-supported rotor - Google Patents

Bearing-supported rotor

Info

Publication number
GB2016609A
GB2016609A GB7902623A GB7902623A GB2016609A GB 2016609 A GB2016609 A GB 2016609A GB 7902623 A GB7902623 A GB 7902623A GB 7902623 A GB7902623 A GB 7902623A GB 2016609 A GB2016609 A GB 2016609A
Authority
GB
United Kingdom
Prior art keywords
rotor
bearing
spigot
ball
high speed
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.)
Granted
Application number
GB7902623A
Other versions
GB2016609B (en
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.)
Ultra Centrifuge Nederland NV
Original Assignee
Ultra Centrifuge Nederland NV
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 Ultra Centrifuge Nederland NV filed Critical Ultra Centrifuge Nederland NV
Publication of GB2016609A publication Critical patent/GB2016609A/en
Application granted granted Critical
Publication of GB2016609B publication Critical patent/GB2016609B/en
Expired 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
    • 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
    • F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
    • F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
    • F16C33/107—Grooves for generating pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/08—Centrifuges for separating predominantly gaseous mixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12—Suspending rotary bowls ; Bearings; Packings for 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
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep 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
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • F16C17/102—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure
    • F16C17/105—Sliding-contact bearings for exclusively rotary movement for both radial and axial load with grooves in the bearing surface to generate hydrodynamic pressure with at least one bearing surface providing angular contact, e.g. conical or spherical bearing surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Sliding-Contact Bearings (AREA)
  • Reciprocating Pumps (AREA)
  • Support Of The Bearing (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Centrifugal Separators (AREA)

Abstract

A thrust bearing for a rotor has one of the bearing members axially displaceable, with respect to the centre of the rotor, by fluid pressure generated by rotation of the rotor. The rotor 1 has a spigot 33 carrying a ball 3 which rests on a seating surface 5 in a bearing block 7. Upon rotation of the rotor 1 lubricating liquid 25 is pumped by grooves in on the surface of the ball 3 into space 41 and thence to space 42 below a diaphragm 36. The spigot 33 is thereby displaced towards the rotor body against a spring to a limiting stop 38. This shortens the rotor and lifts the ball 3 from the bearing surface 5. In alternative constructions the pressure generated tends to force the spigot outwards from the rotor (fig. 4, not shown) or pressure in the space below the bearing block lifts the block (fig. 1, not shown), in each case to compensate shortening of the rotor when rotating at high speed. In a further construction (fig. 2, not shown) the pressure causing the displacement of the bearing member is produced solely by centrifugal action when the rotor rotates. The bearing may be used in high speed centrifuges to compensate for variations in the length of the rotor when it rotates at high speed. Alternatively the bearing may be used where bearing support may be dispensed with when the rotor is running at speed. <IMAGE>
GB7902623A 1978-01-25 1979-01-25 Bearing-supportedrotor Expired GB2016609B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7800866A NL189575C (en) 1978-01-25 1978-01-25 ROTOR WITH SUPPORT.

Publications (2)

Publication Number Publication Date
GB2016609A true GB2016609A (en) 1979-09-26
GB2016609B GB2016609B (en) 1982-12-01

Family

ID=19830220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902623A Expired GB2016609B (en) 1978-01-25 1979-01-25 Bearing-supportedrotor

Country Status (3)

Country Link
DE (1) DE2902492A1 (en)
GB (1) GB2016609B (en)
NL (1) NL189575C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2821177C3 (en) * 1978-05-13 1982-01-28 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Radially damped backup bearing for supercritically running rotors
NL189929C (en) * 1979-12-19 1993-09-01 Ultra Centrifuge Nederland Nv RING MAGNETIC SYSTEM.
GB2101695B (en) * 1981-07-10 1985-03-06 British Gas Corp Improvements in or relating to lubricated bearings
JPS5834227A (en) * 1981-08-26 1983-02-28 Nippon Seiko Kk Dynamic pressure type fluid bearing
DE10245016B4 (en) * 2001-10-08 2005-09-15 Oliver Laing Electric motor with spherical rotor
CN102518738B (en) * 2011-11-24 2014-06-04 清华大学 Slender rod type low-rigidity elastic damping supporting structure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE333484B (en) * 1967-04-04 1971-03-15 Skf Svenska Kullagerfab Ab
DE1775374B1 (en) * 1967-08-22 1971-06-03 Skf Svenska Kullagerfab Ab DEVICE FOR THE SEVERAL DISPLACEMENT OF AN AXIAL LOAD APPLIED BY A SHAFT FROM AN AXIAL ROLLER BEARING TO AN AXIAL SPIRAL GROOVE BEARING AND REVERSE
SE349107B (en) * 1968-08-07 1972-09-18 Skf Svenska Kullagerfab Ab
CH536949A (en) * 1971-03-16 1973-05-15 Ludin Ludwig Hydrodynamic bearing
NL149576B (en) * 1971-06-25 1976-05-17 Stichting Reactor Centrum Vibration damper.
NL7314750A (en) * 1973-10-26 1975-04-29 Ultra Centrifuge Nederland Nv EQUIPMENT WITH AN AUTOMATICALLY ALIGNING ROTARY BODY.
JPH05213049A (en) * 1992-02-07 1993-08-24 Zexel Corp Operation device for heat pump type air conditioner

Also Published As

Publication number Publication date
DE2902492A1 (en) 1979-07-26
GB2016609B (en) 1982-12-01
NL7800866A (en) 1979-07-27
DE2902492C2 (en) 1991-10-17
NL189575B (en) 1992-12-16
NL189575C (en) 1993-05-17

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990124