WO2013086589A1 - Bucha viscoelástica segmentada para mancal de máquinas elétricas girantes - Google Patents
Bucha viscoelástica segmentada para mancal de máquinas elétricas girantes Download PDFInfo
- Publication number
- WO2013086589A1 WO2013086589A1 PCT/BR2011/000473 BR2011000473W WO2013086589A1 WO 2013086589 A1 WO2013086589 A1 WO 2013086589A1 BR 2011000473 W BR2011000473 W BR 2011000473W WO 2013086589 A1 WO2013086589 A1 WO 2013086589A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bushing
- viscoelastic
- bearing
- ring
- segmented
- Prior art date
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
- F16C27/06—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
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/525—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to temperature and heat, e.g. insulation
-
- 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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
-
- 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
-
- 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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/07—Fixing them on the shaft or housing with interposition of an element
- F16C35/077—Fixing them on the shaft or housing with interposition of an element between housing and outer race ring
-
- 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
Definitions
- the present patent discloses a segmented viscoelastic device introduced between the wheel hub and bearing to eliminate the need for conventional machining and further reducing noise and vibration on bearing hubs for motors and generators, a step which currently requires a great deal. dimensional accuracy.
- bearing housings comprise devices consisting of a pair of steel rings (rails) separated by one or more rows of balls or rollers (rolling elements) which eliminate sliding friction.
- Such spheres are kept equidistant from each other by means of a cage to distribute forces and to keep the rings concentric;
- the outer ring is fixed to the wheel hub and the inner ring is fixed directly to the axle.
- Bearings can interact with two types of loads: radial and axial. Radial force is that which extends or moves from a central point outwards and axial force is that which extends or dissipates through a central axis.
- the air gap value should be sized according to the machine design and a combined data series.
- the [clearance] must be chosen that the excitation current and machine reactances conform to the desired performance. Reduced gaps can increase motor noise and tooth face losses ... ".
- US2886354 discloses a bushing in the form of a corrugated ring whose pleats extend axially so that undesirable radial pressure is distributed between the corners of the pleats in order to eliminate the possibility of friction by increasing the contact pressure between them.
- bearing and wheel hub being constructed of "spring" type steel by stamping.
- US3033622 discloses an assembly comprising a bushing for interposition between two pieces as a shaft and a bearing in the form of hexagonal springs, absorbing excess radial pressures.
- a disadvantage associated with this patent is that it has the requirement to be enclosed by a disc bolted to the wheel hub, severely increasing the manufacturing costs of the assembled system.
- GB723399 discloses an elastic device, preferably manufactured from rubber or silicone rubber, having a U-shape or ring shape. The device is in a compressed state when inserted between a ring and the wall of a cavity to compensate for axial variations.
- US7452135 discloses a bearing support in the form of a series assembly of stacked cone-shaped annular plates positioned between the housing wall and an outer raceway of the bearing ring.
- the signs Annular rings can be formed from a single wire, coil, or from a plurality of series stacked annular cones, the sole purpose of which is to allow radial dimensional variations with spring effect.
- US4699528 describes an assembly including a shaft and a bearing interposed between the shaft and its housing to provide radial support and relative rotation for the purpose of absorbing radial and axial variations.
- said assembly comprises a series of combined elements and a specific bearing, mounted on the machine itself, that supports its operation for more severe applications with high temperatures, presenting high complexity and increasing production costs.
- US5611628 describes a rolling sleeve positioned around an axis of rotation, comprising undulations and valleys on its surface, used to compensate for radial or axial variations, presented in a preferred embodiment, grooves directed to axial flexion.
- US4486055 discloses a radial variation compensation device comprising hoop-shaped wedges.
- This system consists of a separating ring between a spring and the bearing, with axial pre-tensioning aiming to size the system in such a way as to allow the radial dimensional increase of the bearing without impairing its operation.
- a disadvantage of said device is the need for machining of the inner diameter of the wheel hub, due to the slippage that must be required of the spacer ring.
- US2926051 discloses an elastic bushing bearing diameter having an inner diameter larger than the outer diameter of the bearing and an axial pretension spring.
- FR2839396 discloses a ring having an L-profile produced from an elastic material to provide damping and having an axial dimension corresponding to one and a half times the width of the bearing, which causes quite a lot of dimensional overturning. In this particular case the dimensional accuracy of manufacturing is identical to a rigid system.
- US7223020 discloses a bearing assembly containing an outer ring and an inner ring.
- the outer ring of the bearing is axially seated in a recess of an inner cylindrical wall.
- a radially flexible member is located between at least one of the bearing outer rings and the recess inner wall, and the bearing inner ring and a rotating member that is rotatably carried on the bearing assembly.
- the present invention discloses a bushing designed to absorb radial and axial expansion variations during operation of the electric machine and the clearances obtained from the high-pressure injection process of the wheel hub without requiring any wheel hub. subsequent machining or precision finishing.
- the bushing is fitted between the bearing and the wheel hub to cushion impacts while allowing at a controlled level, the radial and axial movement of the bearing due to the clearance between the bearing and the outer bearing ring, limited to 30%. from the air gap.
- the present invention aims to prevent the shaft / bearing assembly from being loosened in the cavity by elastic pressure, preventing rotating movements in which the bearing may rub against the wheel hub causing wear, temperature rise, noise and vibration. unwanted. This is possible by obtaining the bearing of the electric machine through a high pressure die casting process, which will provide the proper accuracy for concentricity and finishing for the proposed application.
- Figure 1 illustrates a rear view of the segmented viscoelastic bushing.
- Figure 2 illustrates a cross section of the bushing segmented viscoelastic.
- Figure 3 illustrates a perspective view of the viscoelastic bushing and the bearing hub.
- Figure 4 shows a perspective view of the viscoelastic bushing housed in the hub cavity.
- Figure 5 shows an enlarged sectional view of the segmented viscoelastic bushing housed in the hub cavity.
- Figure 6 illustrates a cross-sectional view of a bushing embodiment.
- Figure 7a illustrates a cross-sectional view of another embodiment of the bushing.
- Figure 7b illustrates a perspective view of another embodiment of the bushing.
- the present invention discloses a bushing whose ring-shaped body (1) delimits an inner groove (2) and an outer groove (3), designed to absorb swelling variations. during operation of the electric machine.
- the inner groove (3) delimits an inner ring (4), aiming to join the segments (8) in order to facilitate their manipulation, making the bushing a unique component.
- the ring (4) has on its perimeter one or more gutter-shaped or other cut-outs (6), designed to eliminate possible air accumulation during mounting to the bottom of the cavity (11), at a high level. or low relief, arranged to connect the groove (3) to the inner side of the ring (4).
- the outer ring (7) has equidistant projected segments (8) between themselves and linked externally to the perimeter of (7).
- Each projection (8) has a lower end (5) connected to the outer ring (7) and a beveled upper end (9), forming a rectangular trapezoid.
- the inner groove (3) delimits an inner ring (4), having at its perimeter, undercut, cut-out (6) arranged to connect the groove
- the outer ring (7) has about eight segments (8) connected externally to the perimeter of (7).
- Each projection (8) has a bulging end (5) and a beveled end (9).
- the bushing (1) is fitted between the bearing and the wheel hub to limit the axial and radial movement of the bearing (not shown) due to the gap between the bearing and the ring. outside of the bearing, limited to 20% of the air gap.
- the segments (8) of the viscoelastic bushing fit in rectangular (10) or evenly shaped cutouts (8) and equidistant from one another between the hub cavity (11) and the bearing.
- the shaft-bearing assembly can also move axially in this configuration toward the hub wall.
- the segments (13) are joined to a T-shaped cross-section ring (16), joined by grooved recesses (15) with rectangular trapezoids.
- Each segment (13) has a beveled upper end (14), and a rounded corner lower end (12).
- the segments (20) have lower ends (19) bulged and connected to the perimeter of the rectangular section ring (17) through recessed circular grooves (18).
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112013024228-0A BR112013024228B1 (pt) | 2011-12-13 | 2011-12-13 | bucha viscoélastica segmentada para mancal de máquinas elétricas girantes |
PCT/BR2011/000473 WO2013086589A1 (pt) | 2011-12-13 | 2011-12-13 | Bucha viscoelástica segmentada para mancal de máquinas elétricas girantes |
US14/115,611 US9140298B2 (en) | 2011-12-13 | 2011-12-31 | Segmented viscoelastic bushing for rotating electrical machines bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/BR2011/000473 WO2013086589A1 (pt) | 2011-12-13 | 2011-12-13 | Bucha viscoelástica segmentada para mancal de máquinas elétricas girantes |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013086589A1 true WO2013086589A1 (pt) | 2013-06-20 |
Family
ID=48611730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/BR2011/000473 WO2013086589A1 (pt) | 2011-12-13 | 2011-12-13 | Bucha viscoelástica segmentada para mancal de máquinas elétricas girantes |
Country Status (3)
Country | Link |
---|---|
US (1) | US9140298B2 (pt) |
BR (1) | BR112013024228B1 (pt) |
WO (1) | WO2013086589A1 (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014206870B4 (de) * | 2014-04-09 | 2022-09-08 | Aktiebolaget Skf | Lageranordnung und Verfahren zu ihrer Herstellung |
WO2017040802A1 (en) * | 2015-09-04 | 2017-03-09 | Dana Heavy Vehicle Systems Group, Llc | Rotary joint assembly |
GB2557676A (en) * | 2016-12-15 | 2018-06-27 | Edwards Ltd | Bearing support for a vacuum pump |
JP2019049316A (ja) * | 2017-09-11 | 2019-03-28 | スズキ株式会社 | 軸受部構造及びその製造方法 |
FR3111488A1 (fr) * | 2020-06-10 | 2021-12-17 | Valeo Systemes Thermiques | Moteur électrique à bague de découplage du rotor, pour dispositif de ventilation d’une installation de ventilation, climatisation et/ou chauffage d’un véhicule automobile |
FR3111487B1 (fr) * | 2020-06-10 | 2022-07-22 | Valeo Systemes Thermiques | Moteur électrique à moyens de découplage du rotor, pour dispositif de ventilation d’une installation de ventilation, climatisation et/ou chauffage d’un véhicule automobile |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB723399A (en) * | 1951-12-04 | 1955-02-09 | Licentia Gmbh | Single-row radial ball-bearings for supporting a shaft of a machine |
US2886354A (en) * | 1950-02-02 | 1959-05-12 | Bjorklund Gustaf Erik | Fasteners |
US2926051A (en) * | 1957-10-01 | 1960-02-23 | Garrett Corp | Resilient bearing mount |
US3033622A (en) * | 1959-07-08 | 1962-05-08 | Gen Motors Corp | Bushing |
US3061386A (en) * | 1961-10-04 | 1962-10-30 | Star Kugelhalter Gmbh Dt | Tolerance rings |
US4486055A (en) * | 1979-06-30 | 1984-12-04 | Siemens Aktiengesellschaft | Device for compensating for radial play of a ball bearing in a bearing bore |
US4699528A (en) * | 1986-04-21 | 1987-10-13 | Zephyr Manufacturing Company | Rotary assembly having self-positioning bearing, and method |
US5611628A (en) * | 1994-09-02 | 1997-03-18 | Kohler Co. | Self-adjusting bearing |
FR2839396A1 (fr) * | 2002-05-06 | 2003-11-07 | Technofan | Moteur electrique a supports d'arbre ameliores |
US7223020B2 (en) * | 2001-02-01 | 2007-05-29 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Bearing assembly |
UA26683U (en) * | 2006-11-24 | 2007-10-10 | Kyrylo Ivanovych Petrov | Plug for bottle |
US7452135B1 (en) * | 2006-07-18 | 2008-11-18 | Florida Turbine Technologies, Inc. | Friction damper for a bearing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2504776A (en) * | 1945-01-15 | 1950-04-18 | Gen Electric | Supporting structure |
US2506404A (en) * | 1946-08-01 | 1950-05-02 | Gen Electric | Shaft bearing |
US5044785A (en) * | 1990-06-18 | 1991-09-03 | Eaton Corporation | Bearing isolator |
US5735615A (en) * | 1996-10-04 | 1998-04-07 | Reliance Electric Industrial Company | Insulation arrangement for electrical machine shaft bearing |
US6318900B1 (en) * | 2000-01-11 | 2001-11-20 | Siemens Automotive Inc. | Ball bearing mounting member |
US8267592B2 (en) * | 2006-12-22 | 2012-09-18 | Rolls-Royce North American Technologies, Inc. | Bearing support |
-
2011
- 2011-12-13 BR BR112013024228-0A patent/BR112013024228B1/pt active IP Right Grant
- 2011-12-13 WO PCT/BR2011/000473 patent/WO2013086589A1/pt active Application Filing
- 2011-12-31 US US14/115,611 patent/US9140298B2/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2886354A (en) * | 1950-02-02 | 1959-05-12 | Bjorklund Gustaf Erik | Fasteners |
GB723399A (en) * | 1951-12-04 | 1955-02-09 | Licentia Gmbh | Single-row radial ball-bearings for supporting a shaft of a machine |
US2926051A (en) * | 1957-10-01 | 1960-02-23 | Garrett Corp | Resilient bearing mount |
US3033622A (en) * | 1959-07-08 | 1962-05-08 | Gen Motors Corp | Bushing |
US3061386A (en) * | 1961-10-04 | 1962-10-30 | Star Kugelhalter Gmbh Dt | Tolerance rings |
US4486055A (en) * | 1979-06-30 | 1984-12-04 | Siemens Aktiengesellschaft | Device for compensating for radial play of a ball bearing in a bearing bore |
US4699528A (en) * | 1986-04-21 | 1987-10-13 | Zephyr Manufacturing Company | Rotary assembly having self-positioning bearing, and method |
US5611628A (en) * | 1994-09-02 | 1997-03-18 | Kohler Co. | Self-adjusting bearing |
US7223020B2 (en) * | 2001-02-01 | 2007-05-29 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Bearing assembly |
FR2839396A1 (fr) * | 2002-05-06 | 2003-11-07 | Technofan | Moteur electrique a supports d'arbre ameliores |
US7452135B1 (en) * | 2006-07-18 | 2008-11-18 | Florida Turbine Technologies, Inc. | Friction damper for a bearing |
UA26683U (en) * | 2006-11-24 | 2007-10-10 | Kyrylo Ivanovych Petrov | Plug for bottle |
Also Published As
Publication number | Publication date |
---|---|
BR112013024228B1 (pt) | 2021-05-11 |
US20150016763A1 (en) | 2015-01-15 |
US9140298B2 (en) | 2015-09-22 |
BR112013024228A2 (pt) | 2018-06-26 |
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