WO1999022157A1 - Lageranordnung - Google Patents
Lageranordnung Download PDFInfo
- Publication number
- WO1999022157A1 WO1999022157A1 PCT/EP1998/006379 EP9806379W WO9922157A1 WO 1999022157 A1 WO1999022157 A1 WO 1999022157A1 EP 9806379 W EP9806379 W EP 9806379W WO 9922157 A1 WO9922157 A1 WO 9922157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- inner ring
- bearing
- housing
- axial
- threaded spindle
- 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
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2252—Planetary rollers between nut and screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
-
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/34—Rollers; Needles
- F16C33/36—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces
- F16C33/363—Rollers; Needles with bearing-surfaces other than cylindrical, e.g. tapered; with grooves in the bearing surfaces with grooves in the bearing-surfaces
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
-
- 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
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/545—Systems comprising at least one rolling bearing for radial load in combination with at least one rolling bearing for axial load
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/40—Screw-and-nut
Definitions
- the invention relates to a bearing arrangement for a device for actuating a vehicle brake, with a central threaded spindle, which is secured against rotation in a fixed housing and is arranged axially displaceable towards and away from a brake disc of the vehicle brake, and with a threaded spindle together with rolling elements surrounding inner ring, which is coupled on the face to the rotatable rotor of an electric motor and is rotatably held in the housing via an axial roller bearing and a radial roller bearing.
- Such a known bearing arrangement disclosed in EP-OS 0 743 470 uses a planetary screw drive to convert the rotary movement of the motor rotor into a displacement movement of the spindle actuating the brake.
- This makes it possible to generate a small spindle feed for a large power transmission to the brake disc in that the spindle is provided with a fine thread with a very small pitch, while the inner ring is designed as a spindle nut which has a coarse thread.
- the rolling elements are designed as roller bodies. They are located in the annular space between the spindle and the spindle nut and orbit the spindle as a planet when the spindle nut rotates.
- the known inner ring designed as a spindle nut is surrounded by a cup-shaped brake piston attached to the threaded spindle.
- the cylinder jacket of the brake piston slides with its inner surface along the inner ring and with its outer surface along the inner wall of the bore of the stationary housing in which these components are arranged. This causes considerable energy losses due to friction.
- the bearing of the inner ring in the housing is carried out via the coupled rotor of the electric motor, the rotor having two ball bearings as the radial bearing and a roller bearing as the axial bearing.
- the invention has for its object to provide a bearing arrangement for the actuation device of the vehicle brake, with which a reduction in friction losses and consequently an improvement in the overall efficiency can be achieved.
- the axial roller bearing of the inner ring is formed by a planetary drive, which as a planet has a plurality of rolling elements which are arranged between the inner ring and a bore wall of the housing.
- the planets of the axial bearing can be balls, for each of which the inner ring and the bore wall have circular grooves in the circumferential direction and circular tracks in the longitudinal section.
- the planets of the axial roller bearing can also be rollers with circular grooves running in the circumferential direction, which are in engagement with corresponding circular grooves of the inner ring and an outer ring fastened to the bore wall of the housing.
- the radial roller bearing of the inner ring can be formed by two needle bearings, the needle sleeves of which bear against the bore wall and adjoin the end face of the outer ring of the axial bearing.
- the rolling elements which are arranged within the inner ring and directly surround the threaded spindle, can be rollers with circular grooves running in the circumferential direction, which are in engagement both with a thread of the inner ring and with the thread of the threaded spindle.
- balls it is also possible to use balls as rolling elements, which must then be in engagement with both a helical ball race of the inner ring and with a corresponding race of the threaded spindle.
- axial bearing on a spindle basis The embodiment according to the invention with a threaded spindle and a bearing of its drive ring, which uses grooved planet rollers for its axial bearing, can be referred to as "axial bearing on a spindle basis”.
- the drawing shows an axial section through a brake actuation device.
- a threaded spindle 2 is axially displaceable but secured against rotation. It serves to act on a brake disc 3 via a brake pad 4.
- a planetary drive is used with a coaxial inner ring 5 surrounding the threaded spindle 2 and several axially parallel rollers 6, which act as planets in the space between the inner ring 5 and the Threaded spindle 2 are arranged.
- Each roller 6 has circular grooves on its circumference, with which it is engaged both with the thread of the threaded spindle 2 and with an internal thread which is formed on the inner surface of the inner ring 5.
- the inner ring 5 is coupled on one end to the rotor of an electric motor 7, which is also located in the stationary housing 1.
- the inner ring 5 therefore rotates in the housing 1 about its longitudinal axis and transmits its torque via the rollers 6 to the threaded spindle 2. Since the latter cannot rotate about its axis, it must rotate due to its thread which the rollers 6 engage, move axially.
- the inner ring 5 is mounted in an axially parallel bore of the housing 1 both axially and radially.
- the axial bearing is carried out with a planetary gear, several rollers 9 surrounding the inner ring 5 in the annular space between the inner ring 5 and a bore wall 8 of the housing 1 and thus acting as a planet.
- rollers 9 run axially parallel to the inner ring 5 and, like the rollers 6, have circular grooves on the circumference with which they engage in corresponding circular grooves which are arranged on the outer surface of the inner ring 5. At the same time, each roller 9 engages with its circular grooves in corresponding circular grooves of an outer ring 10, which are formed on its inner surface.
- the outer ring 10 bears against the bore wall 8 of the housing 1 and is fixed there axially and in the circumferential direction.
- rollers 9 and the outer ring 10 are each provided only with circular grooves, that is to say they have no thread pitch, the rotation of the inner ring 5, which likewise has circular grooves on the outer surface, does not result in any axial movement of the rollers 9. However, an axial force can exceed the individual flanks are recorded on the circular grooves of the rollers 9 and the outer ring 10.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Braking Arrangements (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19881624T DE19881624D2 (de) | 1997-10-24 | 1998-10-07 | Lageranordnung |
US09/530,181 US6318516B1 (en) | 1997-10-24 | 1998-10-07 | Bearing arrangement for actuating a brake in a brake system |
JP2000518216A JP2001521119A (ja) | 1997-10-24 | 1998-10-07 | ベアリング装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19747074A DE19747074A1 (de) | 1997-10-24 | 1997-10-24 | Lageranordnung |
DE19747074.2 | 1997-10-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999022157A1 true WO1999022157A1 (de) | 1999-05-06 |
Family
ID=7846545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/006379 WO1999022157A1 (de) | 1997-10-24 | 1998-10-07 | Lageranordnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6318516B1 (de) |
JP (1) | JP2001521119A (de) |
DE (2) | DE19747074A1 (de) |
WO (1) | WO1999022157A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU91295B1 (de) * | 2006-12-18 | 2008-06-19 | Constant Seiwerath | Gleit- und Rollenlager |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10249762B4 (de) * | 2002-10-25 | 2013-04-25 | Schaeffler Technologies AG & Co. KG | Rollengewindetrieb |
DE102004054037B3 (de) * | 2004-11-05 | 2006-10-05 | Stabilus Gmbh | Verstellvorrichtung |
US20060196293A1 (en) * | 2004-11-05 | 2006-09-07 | Stabilus Gmbh | Adjusting device |
JP4645364B2 (ja) * | 2005-08-25 | 2011-03-09 | トヨタ自動車株式会社 | 回転直動変換機構 |
FR2951514B1 (fr) * | 2009-10-16 | 2012-03-30 | Thales Sa | Vis a rouleaux differentiellle |
JP4807458B2 (ja) * | 2010-01-25 | 2011-11-02 | トヨタ自動車株式会社 | 回転直動変換機構 |
DE102010024336A1 (de) * | 2010-06-18 | 2011-12-22 | Horiba Europe Gmbh | Bremsenprüfstand mit elektrischem Bremsaktuator |
CA2873181A1 (en) | 2011-05-17 | 2012-11-22 | Creative Motion Control, Inc. | High capacity bearing |
DE102013213888B3 (de) * | 2013-07-16 | 2014-11-13 | Robert Bosch Gmbh | Elektrohydraulischer Aktuator |
DE102013222649A1 (de) * | 2013-09-11 | 2015-03-12 | Schaeffler Technologies Gmbh & Co. Kg | Linearaktuator |
EP3169912A1 (de) * | 2014-07-18 | 2017-05-24 | Aktiebolaget SKF (publ) | Betätigungsvorrichtung mit doppelter schraubenverbindungsvorrichtung |
FR3024516B1 (fr) * | 2014-07-30 | 2018-01-19 | Chassis Brakes International B.V. | Reducteur de couple |
US10436347B2 (en) * | 2015-06-01 | 2019-10-08 | Aktiebolaget Skf | Valve operator assembly with double screw mechanism |
FR3049669B1 (fr) * | 2016-04-04 | 2018-04-13 | Foundation Brakes France | Etrier de frein electromagnetique comprenant un guidage de piston a frottements reduits |
JP6559349B2 (ja) * | 2016-06-28 | 2019-08-14 | 日立オートモティブシステムズ株式会社 | ディスクブレーキ |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0249674A1 (de) * | 1986-06-18 | 1987-12-23 | Bo Granbom | Vorrichtung zum Umwandeln einer Drehbewegung in eine lineare Bewegung |
EP0260368A1 (de) * | 1985-04-16 | 1988-03-23 | Origa Förvaltnings Ab | Vorrichtung zum Umwandeln einer Drehbewegung in eine lineare Bewegung |
EP0597438A1 (de) * | 1992-11-12 | 1994-05-18 | Ford-Werke Aktiengesellschaft | Radial-Nadellager-Baueinheit mit integrierter Radial-Axialabdichtung und ggf. Axialabstützung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2325099A (en) * | 1940-09-23 | 1943-07-27 | Best Frank Ellison | High-speed roller bearing |
DE2008386A1 (de) * | 1970-02-24 | 1971-09-09 | Schaeffler Ohg Industriewerk | Wellenlagerung |
US3963286A (en) * | 1974-03-11 | 1976-06-15 | Stanley Richard B | Antifriction roller bearing |
CH621392A5 (de) * | 1978-02-23 | 1981-01-30 | Fernand Moser | |
US4576057A (en) * | 1984-06-13 | 1986-03-18 | Illinois Tool Works Inc. | Anti-friction nut/screw drive |
JPH0341233A (ja) * | 1989-07-06 | 1991-02-21 | Honda Motor Co Ltd | 電動ブレーキ |
DE19511287B4 (de) * | 1994-07-21 | 2004-05-06 | Continental Teves Ag & Co. Ohg | Elektromechanische betätigbare Scheibenbremse |
EP0743470B1 (de) * | 1995-05-19 | 2000-08-09 | Continental Aktiengesellschaft | Bremsaktor für elektrisch betätigbare Fahrzeugbremse |
WO1997011287A1 (en) * | 1995-09-21 | 1997-03-27 | Lucas Industries Public Limited Company | Improvements in electrically-operated disc brake assemblies for vehicles |
DE19605988A1 (de) * | 1996-02-17 | 1997-08-21 | Bosch Gmbh Robert | Vorrichtung zum Betätigen einer Radbremse eines Fahrzeuges |
DE19611910A1 (de) * | 1996-03-26 | 1997-10-02 | Bosch Gmbh Robert | Elektromechanische Bremsvorrichtung |
-
1997
- 1997-10-24 DE DE19747074A patent/DE19747074A1/de not_active Withdrawn
-
1998
- 1998-10-07 US US09/530,181 patent/US6318516B1/en not_active Expired - Fee Related
- 1998-10-07 DE DE19881624T patent/DE19881624D2/de not_active Expired - Fee Related
- 1998-10-07 WO PCT/EP1998/006379 patent/WO1999022157A1/de active Application Filing
- 1998-10-07 JP JP2000518216A patent/JP2001521119A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0260368A1 (de) * | 1985-04-16 | 1988-03-23 | Origa Förvaltnings Ab | Vorrichtung zum Umwandeln einer Drehbewegung in eine lineare Bewegung |
EP0249674A1 (de) * | 1986-06-18 | 1987-12-23 | Bo Granbom | Vorrichtung zum Umwandeln einer Drehbewegung in eine lineare Bewegung |
EP0597438A1 (de) * | 1992-11-12 | 1994-05-18 | Ford-Werke Aktiengesellschaft | Radial-Nadellager-Baueinheit mit integrierter Radial-Axialabdichtung und ggf. Axialabstützung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU91295B1 (de) * | 2006-12-18 | 2008-06-19 | Constant Seiwerath | Gleit- und Rollenlager |
Also Published As
Publication number | Publication date |
---|---|
JP2001521119A (ja) | 2001-11-06 |
DE19747074A1 (de) | 1999-04-29 |
US6318516B1 (en) | 2001-11-20 |
DE19881624D2 (de) | 2000-09-28 |
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