WO2017080548A1 - Actuator - Google Patents
Actuator Download PDFInfo
- Publication number
- WO2017080548A1 WO2017080548A1 PCT/DE2016/200484 DE2016200484W WO2017080548A1 WO 2017080548 A1 WO2017080548 A1 WO 2017080548A1 DE 2016200484 W DE2016200484 W DE 2016200484W WO 2017080548 A1 WO2017080548 A1 WO 2017080548A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle
- sleeve
- rotor
- friction element
- actuator according
- 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
-
- 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
- F16D28/00—Electrically-actuated clutches
-
- 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
- F16D41/00—Freewheels or freewheel clutches
- F16D41/20—Freewheels or freewheel clutches with expandable or contractable clamping ring or band
- F16D41/206—Freewheels or freewheel clutches with expandable or contractable clamping ring or band having axially adjacent coils, e.g. helical wrap-springs
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- 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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
- F16D2023/123—Clutch actuation by cams, ramps or ball-screw mechanisms
Definitions
- the invention relates to an actuator and is used in particular for the actuation of a clutch of a vehicle application.
- Actuators can convert the rotational movement of a component into an axial movement of another component.
- the spindle, spindle nut and Planetenskylz analyses on profiling to transmit a rotational movement between the spindle and spindle nut, wherein one of the components - spindle or spindle nut - rotatably driven and the other component in a rotationally fixed arrangement along the longitudinal axis of the spindle by one of the set translation corresponding Axialweg is relocated.
- the Planetenxxlz analyses two different profile sections which mesh on the one hand with the spindle and the other with the spindle nut
- the one profile sections on the Planetenracelz analyses grooved and the other profile sections on the Planetenracelz analyses are generally grooved and depending on the embodiment, a complementary threaded portion the spindle or the spindle nut and according to the groove portion is arranged on the other component.
- a PWG is known, in which the spindle has a thread and the spindle nut has grooves on which each planetary roller body roll by means of correspondingly complementarily formed profile sections.
- the axially fixed and rotationally driven for example by an electric motor spindle is rotated relative to the rotatably arranged spindle nut, so that the spindle nut forcibly and by the frictional rolling of the plane Body is axially displaced in the grooves of the spindle nut. This results in the Axialweg the spindle nut proportional to the speed of the spindle movement.
- HCA Hydrostatic clutch actuators
- wrap springs for example for clutches.
- an assembly with a friction device with at least two mutually rotatable components in particular for the actuation of a clutch of a vehicle, proposed in which between the relatively rotatable components at a relative rotation of the components, the efficiency / the friction influencing coil spring is arranged.
- the helical spring forms a wrap spring, which is a simple wrap spring, a double wrap spring or a wrap spring Schling torsion spring can be.
- the double-loop spring described here has two effective regions, which are arranged axially one behind the other.
- the wrap spring is surrounded by a PWG sleeve and in each case has a friction surface to this sleeve and to the ring gear of the PWG. Due to the function of both ring gear and sleeve are made of steel. Due to the friction combination steel-steel for the friction points with high friction torque, even in combination with a lubricant, "scuffing" (cold welding) and thus increased wear and abrasion can be expected, which can lead to loss of function up to failure of the module.
- the ring gear is not driven positively, but frictionally engaged by the planetary rollers.
- this structure is not critical, since the ring gear is driven by a torque of the planet, which is greater than that of the friction element.
- Load cases in which the drive torque of the planets on the ring gear is less than the braking torque of the friction element are problematic. In this case, no drive of the ring gear and the planet slip against the ring gear or - depending on the friction conditions - against the spindle.
- the frictional forces acting are also small due to the low axial forces and only slightly deteriorate the overall efficiency of the PWG, but these load cases occur frequently or over a longer path / period, so local wear can occur, which distorts the Abrollgeometrie. In this case, it may happen that the planets do not roll even with respect to the friction element sufficiently large drive torques and thus the wear is significantly enhanced with higher forces and can lead to premature failure of the components.
- the object of the invention is therefore to provide an actuator, in which an alternative positioning of the friction element is realized.
- an actuator in particular for the actuation of a clutch of a vehicle, with a torque transmitting input element, preferably a rotor, a spindle or the like, with a torque or a linear force transmitting output element, such as a spindle or a Spindelmut- ter or the like and with a unit for converting a rotational movement into a linear movement, which is at least partially surrounded by a sleeve and wherein a friction element between a rotationally driven and a frame-fixed / fixed housing part of the actuator is arranged to influence the efficiency in a relative rotation of the different components, wherein inventions - According to the friction element is arranged outside the sleeve.
- the component lying radially on the friction element preferably rotates.
- the unit for converting a rotational movement into a linear movement is a planetary roller screw drive (PWG), wherein a profiling of a spindle is engaged by a plurality of planetary rollers meshing with a ring gear surrounding the planetary rollers, the planetary rollers being axially parallel to the longitudinal axis of the spindle and are freely rotatably mounted about their own longitudinal axis at both ends in a first and a second planetary roller carrier, and the planetary roller carriers are rotationally fixed to the sleeve in a ring surrounding the ring gear or integral with the sleeve, and wherein the sleeve and the planetary roller carriers supported therein axially fixed and rotatably connected to a rotor of a drive, and the sleeve is radially supported by a rotor bearing having an inner ring and an outer ring, wherein the spindle is rotatably supported relative to a housing and a stator of the drive and the locker
- the friction element is disposed between the sleeve and the rotor and the housing or the stator.
- Rotor and stator of an electric motor are usually encapsulated in plastic, which has proven to be particularly favorable for the friction partner.
- Rotor and stator can be designed individually or both as friction surfaces for the friction element. Particularly advantageous is the use of the space axially offset from the rotor on the largest possible diameter to keep the frictional forces low.
- the friction element is arranged between the planetary roller carrier and the outer ring of the rotor or PWG bearing.
- the planetary roller carrier is preferably made of plastic.
- the friction element is a wrap spring.
- This preferably consists of a first and a second Schlingfeder Suite, preferably from exactly two Schlingfeder Suiteen.
- the two Schlingfeder Suitee are designed for a high and a low frictional torque.
- the Schlingfeder Suitee are preferably arranged radially offset from each other to reduce the axial space requirement.
- the friction partner for the friction element is a plastic part.
- the friction partner may be coated with plastic. The training or coating with plastic ensures less wear.
- any other synchronized transmission such as a ball screw, a roller screw drive (RGT) or a movement thread can be used.
- the invention provides an actuator in which an alternative positioning of the friction element is realized without disturbing the rolling conditions or injuring the given space.
- Figure 5 inventive actuator with friction between the inner ring and outer ring of the rotor bearing.
- the planetary rollers 2 extend axially parallel to the longitudinal axis A of the spindle 1 and are mounted at their two ends in each case in a first 4 and a second 5 planetary roller carrier.
- the planetary roller carrier 4, 5 are rotatably supported in a surrounding the ring gear 3 sleeve 6 to this.
- Sleeve 6 and planetary roller carrier 4, 5 are axially fixed and rotatably connected to a rotor, not shown, of a drive.
- the spindle 1 Upon rotation of the rotor and supported in the sleeve 6 planetary roller carrier 4, 5, the spindle 1 performs an axial stroke.
- a friction element in arranged a wrap 7 of the illustrated embodiment. It consists of a first 7.1 and a second 7.2 Schlingfeder Scheme, the first Schlingfeder Scheme 7.1 is connected to the ring gear 3 and the second Schlingfeder Scheme 7.2 with the second planetary roller carrier 5 in operative connection. While the second planetary roller carrier 5 is fixed to the frame, the ring gear 3 is rotationally driven. The rotary drive takes place frictionally from the planetary rollers 2.
- FIGS. 2 to 5 show actuators according to the invention in different embodiments.
- FIGS. 2 to 5 have in common that with the profiling of a spindle 1 a plurality of planetary rollers 2 are engaged, which mesh with a ring gear 3 encircling the planetary rollers 2.
- the planetary rollers 2 extend axially parallel to the longitudinal axis A of the spindle 1 and are mounted at their two ends in each case in a first 4 and a second 5 planetary roller carrier.
- the planetary roller carrier 4, 5 are rotatably supported in a surrounding the ring gear 3 sleeve 6 to this.
- Sleeve 6 and planetary roller carrier 4, 5 are axially fixed and rotatably connected to a (shown in Figures 2 and 3) rotor R of a drive.
- a friction element 7 is in each case formed, which is arranged in different embodiments at different positions.
- the friction element is a wrap spring 7 consisting of a first 7.1 and a second 7.2 Schlingfeder Symposium
- FIG. 2 shows an actuator according to the invention with the friction element 7 between stator S and rotor R of the electric motor.
- the two Schlingfeder Symposium Seriese 7.1 and 7.2 are arranged radially offset from one another.
- the first Schlingfeder Scheme 7.1 is the radially outer of the two and is in operative connection with the stator S as a friction partner.
- the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the rotor R as a friction partner.
- the sleeve 6 of the PWG is supported radially via a rotor bearing 10.
- FIG. 3 shows another embodiment of an actuator according to the invention with the friction element 7 between the stator S and rotor R of the electric motor.
- the two Schlingfeder Suitee 7.1 and 7.2 are arranged radially offset from one another.
- the first Schlingfeder Scheme 7.1 is the radially outer of the two and is in operative connection with the stator S as a friction partner.
- the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the rotor R as a friction partner.
- the sleeve 6 of the PWG is supported radially via a rotor bearing 10.
- the rotor bearing 10 is located on the axially opposite side of the PWG as the ring gear 3, while the friction element 7 is arranged in the axial direction on the same side of the PWG as the ring gear 3.
- the rotor bearing 10 is mounted in an inner ring 10. 1 and an outer ring 10. 2, the inner ring 10. 1 being designed as part of the sleeve 6 in the illustrated embodiment.
- the first 7.1 and the second 7.2 Schlingfeder Suite are arranged offset to each other both radially and axially.
- the first Schlingfeder Rail 7.1 is the radially outer of the two and is in operative connection with the outer ring 10.2 of the rotor bearing 10 as a friction partner.
- the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the second planetary roller carrier 5 as a friction partner.
- FIG. 5 shows an actuator according to the invention with the friction element 7 between the inner ring 10.1 and outer ring 0.2 of the rotor bearing 10.
- the rotor bearing 10 is mounted in an inner ring 10.1 and an outer ring 10.2, wherein the inner ring 10.1 as Part of the sleeve 6 is formed.
- the first 7.1 and the second 7.2 Schlingfeder Suite are arranged radially offset from each other.
- the first Schlingfeder Rail 7.1 is the radially outer of the two and is in operative connection with the outer ring 10.2 of the rotor bearing 10 as a friction partner.
- the second Schlingfeder Scheme 7.2 is the radially inner of the two and is in operative connection with the inner ring 10.1 of the rotor bearing 10 as a friction partner.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680065857.9A CN108351004A (en) | 2015-11-13 | 2016-10-21 | Actuator |
KR1020187013136A KR102658355B1 (en) | 2015-11-13 | 2016-10-21 | actuator |
DE112016005194.8T DE112016005194A5 (en) | 2015-11-13 | 2016-10-21 | actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015222430.9 | 2015-11-13 | ||
DE102015222430 | 2015-11-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2017080548A1 true WO2017080548A1 (en) | 2017-05-18 |
Family
ID=57321047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2016/200484 WO2017080548A1 (en) | 2015-11-13 | 2016-10-21 | Actuator |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR102658355B1 (en) |
CN (1) | CN108351004A (en) |
DE (2) | DE112016005194A5 (en) |
WO (1) | WO2017080548A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3035465A1 (en) * | 2015-04-23 | 2016-10-28 | Schaeffler Technologies Ag | ACTUATOR COMPRISING A PLANET BEARING WORK SCREW (VRP) |
CN109099127A (en) * | 2017-06-21 | 2018-12-28 | 舍弗勒技术股份两合公司 | Executive device and its manufacturing method |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3631949B1 (en) * | 2017-05-31 | 2023-01-11 | Schaeffler Technologies AG & Co. KG | Actuator with a sealing air gap sleeve |
DE102017213412B4 (en) * | 2017-08-02 | 2019-04-04 | Zf Friedrichshafen Ag | Oil pump drive device |
DE102017125149B4 (en) * | 2017-10-26 | 2019-09-19 | Schaeffler Technologies AG & Co. KG | Planetary roller screw, actuator and release system |
DE102017130833B3 (en) | 2017-12-21 | 2018-12-20 | Schaeffler Technologies AG & Co. KG | Molded liquid connection between a bearing inner ring and a sleeve |
DE102018123039A1 (en) * | 2018-09-19 | 2020-03-19 | Fte Automotive Gmbh | Electrical clutch actuator with a one-piece housing |
KR102020737B1 (en) | 2018-10-24 | 2019-09-10 | 김진목 | Rotary actuator with rollerscrew |
DE102018127641A1 (en) | 2018-11-06 | 2020-05-07 | Schaeffler Technologies AG & Co. KG | Method for setting a predetermined position of a clutch actuator comprising a friction spring element |
CN110131327B (en) * | 2019-05-29 | 2021-06-22 | 浙江吉利控股集团有限公司 | Spiral actuator of automobile clutch |
NO20191024A1 (en) * | 2019-08-26 | 2021-03-01 | Techni Holding As | Electric Actuator |
DE102019125323A1 (en) * | 2019-09-20 | 2021-03-25 | Schaeffler Technologies AG & Co. KG | Planetary screw drive |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320621A1 (en) | 1987-11-17 | 1989-06-21 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for converting rotary movement into axial movement |
WO2004001254A1 (en) * | 2002-06-21 | 2003-12-31 | Compact Dynamics Gmbh | Electric automotive disc brake |
FR3011301A1 (en) * | 2013-10-02 | 2015-04-03 | Valeo Embrayages | ACTUATOR FOR TRANSMISSION SYSTEM |
WO2015048961A2 (en) * | 2013-10-01 | 2015-04-09 | Schaeffler Technologies AG & Co. KG | Assembly with friction arrangement |
WO2015117612A2 (en) * | 2014-02-06 | 2015-08-13 | Schaeffler Technologies AG & Co. KG | Actuator comprising a planetary roller screw |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005325894A (en) * | 2004-05-13 | 2005-11-24 | Nsk Ltd | Planetary roller screw device |
WO2012000483A1 (en) * | 2010-06-29 | 2012-01-05 | Schaeffler Technologies Gmbh & Co. Kg | Hydrostatic actuator |
US8439177B2 (en) * | 2010-08-25 | 2013-05-14 | Inertia Dynamics Llc | Wrap spring clutch coupling with quick release feature |
-
2016
- 2016-10-21 CN CN201680065857.9A patent/CN108351004A/en active Pending
- 2016-10-21 DE DE112016005194.8T patent/DE112016005194A5/en active Pending
- 2016-10-21 WO PCT/DE2016/200484 patent/WO2017080548A1/en active Application Filing
- 2016-10-21 KR KR1020187013136A patent/KR102658355B1/en active IP Right Grant
- 2016-11-11 DE DE102016222149.3A patent/DE102016222149A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0320621A1 (en) | 1987-11-17 | 1989-06-21 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Device for converting rotary movement into axial movement |
WO2004001254A1 (en) * | 2002-06-21 | 2003-12-31 | Compact Dynamics Gmbh | Electric automotive disc brake |
WO2015048961A2 (en) * | 2013-10-01 | 2015-04-09 | Schaeffler Technologies AG & Co. KG | Assembly with friction arrangement |
FR3011301A1 (en) * | 2013-10-02 | 2015-04-03 | Valeo Embrayages | ACTUATOR FOR TRANSMISSION SYSTEM |
WO2015117612A2 (en) * | 2014-02-06 | 2015-08-13 | Schaeffler Technologies AG & Co. KG | Actuator comprising a planetary roller screw |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3035465A1 (en) * | 2015-04-23 | 2016-10-28 | Schaeffler Technologies Ag | ACTUATOR COMPRISING A PLANET BEARING WORK SCREW (VRP) |
CN109099127A (en) * | 2017-06-21 | 2018-12-28 | 舍弗勒技术股份两合公司 | Executive device and its manufacturing method |
CN109099127B (en) * | 2017-06-21 | 2023-08-25 | 舍弗勒技术股份两合公司 | Actuator and method for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
DE112016005194A5 (en) | 2018-08-02 |
DE102016222149A1 (en) | 2017-05-18 |
CN108351004A (en) | 2018-07-31 |
KR102658355B1 (en) | 2024-04-18 |
KR20180083325A (en) | 2018-07-20 |
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