WO2014000799A1 - Agencement de machine - Google Patents

Agencement de machine Download PDF

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Publication number
WO2014000799A1
WO2014000799A1 PCT/EP2012/062539 EP2012062539W WO2014000799A1 WO 2014000799 A1 WO2014000799 A1 WO 2014000799A1 EP 2012062539 W EP2012062539 W EP 2012062539W WO 2014000799 A1 WO2014000799 A1 WO 2014000799A1
Authority
WO
WIPO (PCT)
Prior art keywords
ring
spring
machine arrangement
arrangement according
bearing
Prior art date
Application number
PCT/EP2012/062539
Other languages
English (en)
Inventor
Jeroen Wensing
Nijs VAN DER MEI
Gilbert PETERS
Original Assignee
Aktiebolaget Skf
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 Aktiebolaget Skf filed Critical Aktiebolaget Skf
Priority to PCT/EP2012/062539 priority Critical patent/WO2014000799A1/fr
Publication of WO2014000799A1 publication Critical patent/WO2014000799A1/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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • 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
    • F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
    • F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
    • 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
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/066—Ball or roller 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • 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
    • 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
    • F16C2360/42—Pumps with cylinders or pistons
    • 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 machine arrangement comprising a housing element and a rotor element, wherein the rotor element is rotatable supported in the housing element by at least one bearing, wherein the at least one bearing has an inner ring and an outer ring, wherein the housing element has a reception for the bearing.
  • Machine arrangements of this kind are well known in the art. They are employed for example in an electric machine like an electric compressor or a turbine generator. Here, a rotor is supported by bearings relatively to a housing.
  • the rotor In those machines the rotor is rotating during regular use. The rotor does not only maintain a certain constant revolution speed. Also, the rotary speed of the rotor varies. When starting the machine the rotor has to be driven from a revolution speed of zero to the required number of revolutions. Thus, the rotor will have to passage critical rotation frequencies where vibration will be excited. Due to the design of the machine is can be that during transition of critical frequencies, i. e. when the rotor passes a rotational speed which is a resonance frequency of the rotor system, vibrations reach critical magnitudes which can damage the machine arrangement and which at least cause loud noises.
  • a s o l u t i o n according to the invention is characterized in that a spring and/or damping element is arranged between the outer circumference of the outer ring and the reception of the housing element and/or between the inner circumference of the inner ring and the rotor element, wherein the spring and/or damping element comprises a ring element, wherein a number of recesses is machined in the ring element which extend from the inner circumference of the ring element to the outer circumference of the ring element and which form reception pockets, wherein a spring element is arranged in at least a number of reception pockets (preferably in all pockets), wherein the spring element is designed to exert a radial spring force between the bearing ring and the housing element and/or the rotor element in the mounted state of the machine arrangement.
  • the mentioned spring and/or damping element is arranged between the outer ring of the bearing and the housing element.
  • the spring element is preferably a leaf spring.
  • the shape of the reception pocket can correspond to the shape of the spring element, especially seen in radial direction.
  • the shape of the reception pocket is preferably rectangular seen in radial direction.
  • the ring element can be made from steel, especially from ball bearing steel.
  • the spring element can also be made from steel, especially from spring steel.
  • the stiffness of the at least one spring element (measured in N/mm) in radial direction is preferably smaller than the radial stiffness of the bearing. Specifically, the stiffness of the at least one spring element in radial direction can be at a maximum 25 % of the radial stiffness of the bearing.
  • the ring element has - according to a preferred embodiment of the invention - conduit means for piping a fluid, preferably oil, from a fluid source into the reception pockets.
  • a fluid preferably oil
  • the conduit means can be established by at least one groove which is machined into the ring element and which runs in circumferential direction of the ring element; thereby, the groove is preferably arranged at the outer circumference of the ring element.
  • oil is preferred, but also grease, foam, wax and a visco-elastic material can be used.
  • the ring element can have at least one groove which is machined into its outer circumference and/or into its inner circumference, wherein an elastic element, preferably an O-ring made from rubber or elastomere material, is inserted into at least a section of the groove.
  • an elastic element preferably an O-ring made from rubber or elastomere material
  • the mentioned groove in the ring element is not used for piping a fluid but for inserting a damping element into the groove which then runs in circumferential direction around at least a section of the circumference of the ring element.
  • an O-ring which is solid or which is hollow and which is made from a rubber or an elastomere material is preferred.
  • the spring and/or damping element has preferably substantial the same axial extension as the bearing ring which is in contact with the spring and/or damping element.
  • the ring element contacts the reception of the housing element or the outer circumference of the outer ring and leaves a radial clearance to the outer circumference of the outer ring or the reception of the housing element. Also it can be provided that the ring element contacts the rotor element or the inner circumference of the inner ring and leaves a radial clearance to the inner circumference of the inner ring or the rotor element.
  • the bearing is preferably a roller bearing.
  • the machine arrangement is preferably a part of an electrical machine, especially of an electric compressor or of a turbine generator. Accordingly and preferably a metal ring is mounted on the outer diameter of the roller bearing which has elastic leaf springs that provide a predefined stiffness to the roller bearing supported rotor on an electrical machine.
  • the leaf springs operate in small chambers (pockets). When a fluid, preferably oil, is supplied a damping mechanism is created that reduces the vibration amplitudes in the system.
  • the leaf spring support is very compact due to the described design and provides specifically in combination with a fluid, preferably with oil, stiffness and damping at the same time with well-defined tunable parameters. That is, a very compact elastic radial spring support is given to provide and tune the optimum rotor dynamic behavior of a high speed electrical machine like an electric compressor or a turbine generator; in addition with the supply of the fluid (oil) the flexible elements can also provide damping to the rotor system to allow a secure passage of critical frequencies and reduce noise and vibrations.
  • Fig. 1 shows a radial cross section through a part of a machine arrangement which is an electrical machine
  • Fig. 2 shows a part of the section A-B according to Fig. 1 and
  • Fig. 3 shows a perspective view of a part of the machine arrangement in partial section.
  • a machine arrangement 1 which is for example an electric compressor or turbine generator.
  • a rotor element 3 is arranged in a housing element 2; the rotor element 3 rotates around an axis a.
  • a bearing 4 is employed (a further bearing is not depicted which is necessary to support the rotor element 3).
  • the bearing 4 has an inner ring 5 and an outer ring 6.
  • the bearing 4 is a deep groove ball bearing and thus has radial and axial bearing properties.
  • the housing element 2 has a reception 7 for the bearing 4, i. e. a cylindrical bore.
  • a spring and/or damping element 8 is arranged between the outer circumference 9 of the outer ring 6 and the reception 7 of the housing element 2.
  • This spring and/or damping element 8 comprises a ring element 10.
  • a number of recesses 11 is machined in the ring element 10 which extend from the inner circumference 12 of the ring element 10 to the outer circumference 13 of the same; thus, reception pockets 14 are formed which are distributed along the circumference of the ring element 10.
  • Spring elements 15 being leaf springs are arranged in the reception pockets 14. As it is illustrated in Fig.
  • the spring elements 15 are designed to exert a spring force F in radial direction r between the outer ring 6 and the housing element 2 when the machine arrangement 1 is - as shown - in the mounted state.
  • the ring element 10 is located in such a manner that it contacts (preferably with press fit) the reception 7 (bore) of the housing element 2, i. e. the outer circumference of the ring element 10 contacts the bore surface in the housing element 2.
  • the inner circumference 12 of the ring element 10 is distances by a radial clearance s (e. g. between 0.1 mm and 0.5 mm) from the outer circumference 9 of the outer ring 6.
  • conduit means 16 - being a groove - are machined into the outer circumference 13 of the ring element 10 (this groove 13 is here even machines in the outer side of the spring elements 15).
  • the groove 16 is fluidically connected with a fluid source 17 (preferably with an oil source) which is shown only schematically.
  • a fluid can be piped from the fluid source 17 via the groove 16 into the pockets 14 in which the spring elements 15 are located. By doing so, the damping property of the system can be influenced beneficially.

Landscapes

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

Abstract

La présente invention concerne un agencement de machine (1) comprenant un élément de logement (2) et un élément rotor (3). Selon l'invention, l'élément rotor (3) est supporté mobile en rotation dans l'élément de logement (2) par au moins un palier (4), ledit palier (4) comportant une bague intérieure (5) et une bague extérieure (6), l'élément de logement (2) comportant une partie de réception (7) destinée au palier (4). L'invention concerne en outre l'amélioration du comportement dynamique du rotor d'une machine tournant à vitesse élevée par disposition d'un ressort et/ou d'un élément d'amortissement (8) entre la circonférence extérieure (9) de la bague extérieure (6) et la partie de réception (7) de l'élément de logement (2) et/ou entre la circonférence intérieure de la bague intérieure (5) et l'élément rotor (3), le ressort et/ou l'élément d'amortissement (8) comprenant un élément annulaire (10), un certain nombre d'évidements (11) étant usinés dans l'élément annulaire (10), lesquels s'étendent de la circonférence intérieure (12) de l'élément annulaire (10) jusqu'à la circonférence extérieure (13) de l'élément annulaire (10) et forment des poches de réception (14). Un élément ressort (15) est disposé dans au moins un certain nombre de poches de réception (14), l'élément ressort (15) étant conçu pour exercer une force (F) de rappel radial (r) entre la bague de roulement (5, 6) et l'élément de logement (2) et/ou l'élément rotor (3) dans l'état monté de l'agencement de machine (1).
PCT/EP2012/062539 2012-06-28 2012-06-28 Agencement de machine WO2014000799A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/062539 WO2014000799A1 (fr) 2012-06-28 2012-06-28 Agencement de machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2012/062539 WO2014000799A1 (fr) 2012-06-28 2012-06-28 Agencement de machine

Publications (1)

Publication Number Publication Date
WO2014000799A1 true WO2014000799A1 (fr) 2014-01-03

Family

ID=46456561

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/062539 WO2014000799A1 (fr) 2012-06-28 2012-06-28 Agencement de machine

Country Status (1)

Country Link
WO (1) WO2014000799A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020035176A1 (fr) * 2018-08-14 2020-02-20 Voith Patent Gmbh Dispositif d'enroulement
EP3690267A1 (fr) * 2019-02-01 2020-08-05 United Technologies Corporation Ressort de centrage de palier et amortisseur
WO2021048178A1 (fr) 2019-09-10 2021-03-18 Rockwool International A/S Rotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553834A (en) * 1993-11-12 1996-09-10 Korea Institute Of Machinery And Metals Lateral and axial vibration isolators utilizing leaf springs
FR2767870A1 (fr) * 1997-08-27 1999-03-05 G Predpr K Bjurokhimicheskoi A Groupe turbopompe
EP2224103A2 (fr) * 2009-02-27 2010-09-01 General Electric Company Amortisseur à roulement avec joint à ressort

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5553834A (en) * 1993-11-12 1996-09-10 Korea Institute Of Machinery And Metals Lateral and axial vibration isolators utilizing leaf springs
FR2767870A1 (fr) * 1997-08-27 1999-03-05 G Predpr K Bjurokhimicheskoi A Groupe turbopompe
EP2224103A2 (fr) * 2009-02-27 2010-09-01 General Electric Company Amortisseur à roulement avec joint à ressort

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020035176A1 (fr) * 2018-08-14 2020-02-20 Voith Patent Gmbh Dispositif d'enroulement
CN112543741A (zh) * 2018-08-14 2021-03-23 福伊特专利有限公司 卷绕装置
EP3690267A1 (fr) * 2019-02-01 2020-08-05 United Technologies Corporation Ressort de centrage de palier et amortisseur
WO2021048178A1 (fr) 2019-09-10 2021-03-18 Rockwool International A/S Rotor

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