CN104653736A - Planet rolling transmission mechanism and actuator having planet rolling transmission mechanism - Google Patents
Planet rolling transmission mechanism and actuator having planet rolling transmission mechanism Download PDFInfo
- Publication number
- CN104653736A CN104653736A CN201410645699.7A CN201410645699A CN104653736A CN 104653736 A CN104653736 A CN 104653736A CN 201410645699 A CN201410645699 A CN 201410645699A CN 104653736 A CN104653736 A CN 104653736A
- Authority
- CN
- China
- Prior art keywords
- driving mechanism
- rotary member
- planet rolling
- rolling driving
- nut
- 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
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to a planet rolling transmission mechanism and an actuator having the planet rolling transmission mechanism. The planet rolling transmission mechanism includes a first threaded rotation member rotationally driven by a motor and received in a manner of being fixed to a housing, a second rotation member being capable of axially moving with respect to the first rotation member, being received in an anti-torsion manner, and having a groove section, and a planet member distributed on the periphery and accommodated in a carriage in a rotational manner, the planet member is provided with a threaded section rolling on the threads of the first rotation member and a groove section rolling on the groove section of the second rotation member. In order to improve the cooperation of the planet rolling transmission mechanism and the actuator along the preferable linear movement direction, a flywheel is arranged between the carriage and the second rotation member.
Description
Technical field
The present invention relates to a kind of planet rolling driving mechanism for motor vehicle and the actuator with this planet rolling driving mechanism, described planet rolling driving mechanism has by motor rotating drive, threaded first rotary member of tool that the mode of fixing with axis and housing is held and moving axially relative to described first rotary member, torsionally hold, have groove part section the second rotary member and with on ring week distribution and the planetary member be contained in the mode that can rotate in retainer, described planetary member has the thread section rolled on the screw thread of the first rotary member and the groove part section of rolling in the groove part section of the second rotary member.
Background technique
In the motor vehicle, such as, in order to the form of operation setting in Power Train is that the device of clutch as friction clutch, double clutch, cut-off clutch, break, parking lock device etc. exists following task: rotating drive is transformed into linear motion by means of motor.In order to solve described task, screw drive mechanism can be provided with as ball screw driver, planet rolling driving mechanism etc.At this, first rotary member by motoring and axial restraint, and torsionally keep, move axially by means of the second rotary member of screw rolling and operate corresponding device when the first rotary member rotational motion on described first rotary member.This screw drive mechanism has fixing efficiency.If described efficiency is high, although so apply a small amount of moment to make the actuator movements being configured with screw drive mechanism, keep electric current sometimes to become large, make the energy that must be applied for keeping desired locations.This is less desirable in only little device relative to desired locations movement of such as cut-off clutch.In addition, high efficiency can be risky, because be provided with high efficiency actuator can perform motion in the event of a loss of power, in other words, can leave the position of expectation.If efficiency is low-down, although the actuator of so corresponding formation is self-locking, but corresponding high moment must be applied to make actuator movements and the corresponding the earth design of the necessary size of the motor of rotating drive.In order to remain on desired locations by screw drive mechanism, a kind of Locking Device of screw drive mechanism is proposed in German patent application 10 2,013 203 833.7 disclosed in not having formerly.
Summary of the invention
The object of the invention is to have that little steering force and self-sustaining run has the actuator of described planet rolling driving mechanism and the improvement project of planet rolling driving mechanism.
Described object is realized with the actuator with described planet rolling driving mechanism by the planet rolling driving mechanism according to invention.Hereinafter provide according to planet rolling driving mechanism of the present invention and the favourable embodiment of actuator with described planet rolling driving mechanism.
The planet rolling driving mechanism proposed especially is set to the actuator for motor vehicle, for linear operated device, such as clutch as with the friction clutch of the form of single clutch or double clutch, such as connecting and cut off motor, drive the cut-off clutch of facility etc., for the gear shift sleeve, break, parking lock device etc. of gearshift in the transmission etc.At this, be provided with the first rotary member, described first rotary member is by motor rotating drive and be received by means of the mode that cod, such as deep groove ball bearing etc. are such as axially fixing with housing relative to the housing of actuator, and planet rolling driving mechanism is integrated in described actuator.First rotary member has screw thread, thread section etc. for setting up threaded joints at this.Planet rolling driving mechanism has the second rotary member, and described second rotary member is received in the mode axially movable and antitorque relative to the first rotary member.Second rotary member has groove part section and transmits rotational motion for when not having axial feed.Between two rotary members, with on ring week distribution and rotating mode planetary member is contained in retainer.Planetary member have at least one groove part section and at least one thread section for set up on the one hand with the screw thread of the first rotary member and on the other hand with the Structure deformation of one or more groove part sections of the second rotary member.In this way, except according to except the transmission of epicyclic transmission mechanism, rotational motion can be transformed into the linear motion according to screw drive mechanism simultaneously.In order to realize little steering force when rotating speed is high along the direction of operating of the device that will operate and be in reverse to the epicyclic transmission mechanism that described direction of operating realizes self-locking, between retainer and the second rotary member, be provided with flywheel.By the flywheel accessed in this way, the design of epicyclic transmission mechanism can as far as possible freely be selected in self-retaining function.
First rotary member of the planet rolling driving mechanism proposed can be such as axial restraint ground and the bolt and nut arranged rotationally, and described bolt and nut is by motor rotating drive.The screw rod of antitorque setting within described bolt and nut this by means of planetary member at rotating drive bolt and nut time move axially.According to one preferred embodiment, the first rotary member be configured to screw rod and the second rotary member be configured to around screw rod arrange bolt and nut.At this, screw rod is directly preferably connected coaxially with the rotor of motor or is formed by rotor single type and driven by described rotor turns.Torsionally such as be contained in bolt and nut on housing when rotating drive screw rod relative to screw rod move axially and formed or comprise or operate corresponding manipulator, such as have the operation clutch yoke of bearing, hydraulic pressure or the piston etc. of master cylinder of hydrostatic operation system, want the device of linear operation for operation.
The flywheel be arranged between retainer and the second rotary member such as can be configured to ratchet flywheel, wind spring flywheel etc.Preferably, flywheel is configured to the clamping body flywheel with clamping body such as ball, pinch roller etc.
at this, in retainer, in ring circumferential direction, to observe between planetary member depressed part that circumferentially direction is provided with wedge shape, that open towards bolt and nut.In described depressed part, introduce the clamping body that can radial clamp between the rolling rail and retainer of bolt and nut and described clamping body by means of pre-tensioner in the gap of accumulator between retainer and bolt and nut.Clamping body rolls along the first sense of rotation between retainer and bolt and nut, makes it possible to realize rotation between retainer and bolt and nut and ball screw thread runs with the velocity ratio by means of planetary member setting between screw rod and bolt and nut.In contrary sense of rotation, join between retainer and bolt and nut clamping body locking, planetary member is torsionally fixed relative to bolt and nut, screw rod and bolt and nut are relative to each other axially moved by means of velocity ratio that is less and preferably self-locking in the slope situation set by screw thread between screw flight and the thread section of planetary member.
In a preferred embodiment, flywheel is arranged on the axial height of screw flight.At this, introduce depressed part in retainer on ring week can and thread section alternately or be at least arranged between the thread section that arranges on ring week.At this, also turn out to be advantageously in addition, planetary member respectively has two groove part sections axially spaced apart from each other, is respectively arranged with a thread section, makes groove part section be positioned at thread section both sides between described two groove part sections.At this, bolt and nut by two be arranged on flywheel both sides, the nut part that torsionally such as connects by means of the housing of planet rolling driving mechanism each other formed.
The threaded joints formed by thread section and the first rotary member, the such as screw flight of planetary member is preferably configured to self-locking.By correspondingly forming the slope of threaded joints, realizing the self-locking of described threaded joints, making it possible to keep when not being energized to motor the second rotary member relative to the expectation of the first rotary member, such as default position.Such as the friction clutch of compression can be remained in the position of torque that it closes, transmission setting in this way, and the relevant actuator of the planet rolling driving mechanism with proposition need not be activated, such as to its energising, wherein can at steering force little and then motor be dimensioned to relatively little the high velocity ratio of actuator is set.
The actuator with the planet rolling driving mechanism of proposition proposed preferably has bolt and nut, and described bolt and nut is by means of anti-torsion device anti-torsion and be axially movably placed in the actuator casing of actuator.At this, screw rod be arranged on the motor in the axial extension of epicyclic transmission mechanism rotor coaxial arrange.In addition, actuator can form element of construction with the master cylinder with axially movable piston, and wherein piston is formed in the mode that can be moved axially by the second rotation driving part.
In other words, described object realizes by being integrated into by flywheel in planet rolling driving mechanism (PWG), and the retainer with planetary member is only rotated in one direction.Therefore, planet rolling driving mechanism also act as planet rolling driving mechanism along a sense of rotation or linear direction and act as bolt and nut along another direction, has the operation system self-sustaining of planet rolling driving mechanism thus, and need not improve steering force.According to the structure type of planet rolling driving mechanism, so slope also changes.Because planetary member keeps static, so screw rod slope is also the slope of proposed planet rolling driving mechanism when moving when flywheel locks.If expect this effect, so slope changes and can limit by corresponding the earth.If undesirably this effect, so planet rolling driving mechanism can be configured to, and makes its slope corresponding to screw rod slope.At this, efficiency is relatively high according to geometrical shape.At this, slope is drawn by the kinematical properties between screw rod and planetary member.Along another direction of operating, planet rolling driving mechanism act as the bolt and nut with obviously less efficiency.Fricting movement is there is between fixing planetary member and screw rod.Slope is corresponding to screw rod slope.System is in the direction---except very extreme, except unpractical screw rod slope---self-locking.At this, the type of flywheel is arbitrary.Such as can use cylinder, clamping body or ratchet.In a favourable mode of execution, flywheel is integrated in the space between planetary member.Equally advantageously, flywheel can navigate on or below retainer.
Accompanying drawing explanation
The present invention is elaborated according to the embodiment shown in Fig. 1 to 5.At this illustrate:
Fig. 1 illustrates the schematic diagram of planet rolling driving mechanism from side,
Fig. 2 illustrates the cross section of the embodiment of the structure aspect of planet rolling driving mechanism,
Fig. 3 illustrates the side view of the planet rolling driving mechanism of Fig. 2 when housing is cut open,
Fig. 4 illustrates the side view of the planet rolling driving mechanism of Fig. 2 when housing is cut open and bolt and nut is hidden, and
Fig. 5 illustrates the side view of the retainer of the planet rolling driving mechanism of Fig. 2 to 4.
Embodiment
Fig. 1 illustrates the schematic diagram of planet rolling driving mechanism 1, and described planet rolling driving mechanism has by the motor rotating drive do not illustrated and the first rotary member 2 of arranging of axial restraint ground, and described first rotary member illustrates in this as screw rod 3.Be provided with around the first rotary member 2 and move axially and the second rotary member 4 of antitorque setting, described second rotary member is configured to bolt and nut 5 at this.Planetary member 6 is contained in rotationally in retainer 7 in the mode distributed on ring week between rotary member 2,4.At this, planetary member 6 is rolled on the screw thread 8 of the first rotary member by means of the thread section be not shown specifically, and rolls in the groove part section 9 of the second rotary member 4 by means of the groove part section be not shown specifically.Thus, rotating drive first rotary member 2 and formed by the thread section of screw thread 8 and planetary member 6 threaded joints 10 time, realize the Linear-moving rotating drive of the first rotary member 2 being converted to the second rotary member 4, and be connected with the rolling of the groove part section 9 of the second rotary member 4 by the groove part section of planetary member 6, realize the velocity ratio in planetary stage meaning when retainer 7 rotates.
Flywheel 11 acts between the second rotary member 4 and retainer 7, and make when the first rotary member 2 rotates counterclockwise, retainer 7 rotates along clockwise direction, and flywheel 11 rolls across.Planet rolling driving mechanism 1 is at this working without stint.If the first rotary member 2 rotates along clockwise direction, retainer 7 is caused to rotate counterclockwise, but by flywheel 11 locking.Thus, planetary member 6 and the second rotary member are rigidly connected, and make only still to be threaded connection portion 10 to set velocity ratio.Because resultant gear ratio reduces and the friction of threaded joints 10 increase, planet rolling driving mechanism 1 is self-locking in this sense of rotation of the first rotary member, make the set linear position of maintenance second rotary member 4, and the counter-force of the form of the rotational motion kept need not be provided on the first rotary member 2.
Fig. 2 illustrates the cross section of the tectonic sieving scheme of the planet rolling driving mechanism 1 of Fig. 1, the planetary member 6 that described planet rolling driving mechanism has screw rod 3 and bolt and nut 5 and arranges in-between.In the planet rolling driving mechanism 1 of Fig. 2, screw rod 3 by rotating drive and bolt and nut 5 be torsionally contained in housing 18.Housing 18 by means of anti-torsion device 19 torsionally and can axially movably be contained in the unshowned actuator casing of the actuator with planet rolling driving mechanism 1 grade.Planetary member 6 is contained in retainer 7 rotationally.In ring Zhou Shangyu planetary member 6 alternately, ring circumferential direction is introduced the depressed part 12 that the formation being configured to the flywheel 11 (Fig. 1) of clamping body flywheel 13 is wedge shape, and described depressed part radially outward is openly formed.Clamping body 14 to be placed in depressed part 12 and by means of radial pre-tensioner with the rolling rail 16,17 of bolt and nut 5 relative to retainer 7 of accumulator 15.When screw rod 3 rotational motion along clockwise direction, planetary member 6 and then retainer 7 rotate counterclockwise, and make clamping body 14 overcome acting in depressed part 12 of accumulator 15 and roll on two rolling rails 16,17.Thus, clamping body flywheel 13 rolls across.When sense of rotation is reversed, the reverse sense of rotation of rolling rail 16,17 changes over sense of rotation in the same way, clamping body 14 is pulled in the narrow region of depressed part 12 and makes retainer 7 relative to bolt and nut 5 mutual locking in its rotation.
The side view shown in three-dimensional of Fig. 3 planet rolling driving mechanism 1 of Fig. 2 shown in the cross-section housing 18 with anti-torsion device 19.The nut part 20 that bolt and nut 5 is spaced by two axis is formed, and described nut part is torsionally connected with housing 18.Clamping body flywheel 13 is axially disposed between two nut parts 20.The depressed part 12 being incorporated into the clamping body 14 with cylinder shape in retainer 7 replaces at the thread section 21 of ring Zhou Shangyu planetary member 6.Thread section rolls with the screw thread 8 of screw rod 3.
Fig. 4 illustrates the side view shown in three-dimensional of planet rolling driving mechanism 1 when there is no nut part 20 (Fig. 2) of bolt and nut 5.Thus, visible groove part section 22, described groove part section is rolled with the groove part section 9 (Fig. 1) of bolt and nut 5.Groove part section 22 is placed in thread section 21 both sides of planetary member 6.Retainer 7 is axially pre-tensioner in housing 18 by means of cup spring 23.
Fig. 5 illustrates the three-dimensional side view of the retainer 7 of Fig. 2 to 4, wherein has depressed part 12 and the recess 24 for holding planetary member 6 (Fig. 2).Hold planetary member 6 in order to rotationally, respectively in side, in retainer 7, be provided with supporting opening 25.
Reference numerals list:
1 planet rolling driving mechanism
2 first rotary members
3 screw rods
4 second rotary members
5 bolt and nuts
6 planetary member
7 retainers
8 screw threads
9 groove part sections
10 threaded joints
11 flywheels
12 depressed parts
13 clamping body flywheels
14 clamping bodies
15 accumulators
16 rolling rails
17 rolling rails
18 housings
19 anti-torsion devices
20 nut parts
21 thread sections
22 groove part sections
23 cup springs
24 recesses
25 supporting openings.
Claims (10)
1. one kind is particularly useful for the planet rolling driving mechanism (1) of the actuator of motor vehicle, have by motor rotating drive, first rotary member (2) of what the mode of fixing with axis and housing was held have screw thread (8) and moving axially relative to described first rotary member, torsionally hold, have at least one groove part section (9) the second rotary member (4) and with on ring week distribution and the mode that can rotate is contained in the planetary member (6) in retainer (7), described planetary member has the upper groove part section (22) of rolling of groove part section (9) described in the thread section (21) in the upper rolling of the described screw thread (8) of described first rotary member (2) and at least one described second rotary member (4), it is characterized in that, flywheel (11) is provided with between described retainer (7) and described second rotary member (4).
2. planet rolling driving mechanism (1) according to claim 1, it is characterized in that, described first rotary member (2) is configured to screw rod (3) and described second rotary member (4) is configured to the bolt and nut (5) that arranges around described screw rod (3).
3. planet rolling driving mechanism (1) according to claim 2, is characterized in that, described flywheel (11) is configured to clamping body flywheel (13).
4. planet rolling driving mechanism (1) according to claim 3, it is characterized in that, in ring circumferential direction, the depressed part (12) opened wide relative to described bolt and nut (5) being provided with wedge shape between described planetary member (6) along ring circumferential direction is observed in described retainer (7), and in described depressed part (12), be provided with the clamping body (14) that can radially clamp between the rolling rail (16,17) and described retainer (7) of described bolt and nut (5).
5. planet rolling driving mechanism (1) according to any one of claim 1 to 4, is characterized in that, described flywheel (11) is arranged on the axial height of described thread section (21).
6. planet rolling driving mechanism (1) according to claim 5, it is characterized in that, described planetary member (6) has the thread section (21) being positioned at both sides by two groove part sections (22) respectively, and described bolt and nut (5) by two be arranged on described flywheel (11) both sides, the nut part (20) of antitorque connection each other formed.
7. the planet rolling driving mechanism (1) according to any one of claim 2 to 6, is characterized in that, described bolt and nut (5) is connected with the housing (18) surrounding described planet rolling driving mechanism (1).
8. planet rolling driving mechanism (1) according to any one of claim 1 to 6, it is characterized in that, the threaded joints (10) formed by the described thread section (21) of described planetary member (6) and the described screw thread (8) of described first rotary member (2) is configured to be self-locking.
9. one kind has the actuator of the planet rolling driving mechanism (1) according to any one of claim 2 to 8, wherein said bolt and nut (5) is by means of anti-torsion device (19) anti-torsion and axially can be placed in movably in the actuator casing of described actuator, and described screw rod (3) is arranged with the rotor coaxial ground being arranged on the motor in the axial extension of described planet rolling driving mechanism (1).
10. actuator according to claim 9, is characterized in that, described actuator and the master cylinder with the piston that can move axially form element of construction and described piston can be made up of the mode of described second rotary member (4) movement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013223471.6 | 2013-11-18 | ||
| DE102013223471 | 2013-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653736A true CN104653736A (en) | 2015-05-27 |
| CN104653736B CN104653736B (en) | 2019-12-10 |
Family
ID=53184526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410645699.7A Active CN104653736B (en) | 2013-11-18 | 2014-11-12 | Planetary rolling gear and actuator having the same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104653736B (en) |
| DE (1) | DE102014221090A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120369A (en) * | 2017-06-22 | 2017-09-01 | 芜湖伯特利汽车安全***股份有限公司 | Electric card suitable for vehicle electric mechanical type brake system is clamped |
| CN112045579A (en) * | 2019-06-06 | 2020-12-08 | 弗兰茨·翰默机械制造两合公司 | Clamping device for clamping an object |
| CN112292306A (en) * | 2018-06-18 | 2021-01-29 | 采埃孚股份公司 | Steer-by-wire apparatus having spindle driver |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015209598B4 (en) * | 2015-05-26 | 2017-07-06 | Schaeffler Technologies AG & Co. KG | Planetenwälzgewindetrieb |
| CN108023436B (en) * | 2016-11-01 | 2024-02-20 | 儒拉玛特自动化技术(苏州)有限公司 | Press-spinning machine |
| CN108266510A (en) * | 2018-03-21 | 2018-07-10 | 苏州阳林滚动机械科技有限公司 | A kind of circulating planetary roller screw of straight trough retainer |
| CN108757865B (en) * | 2018-08-20 | 2024-03-19 | 北京因时机器人科技有限公司 | Transmission mechanism and transmission device |
| DE102019109166A1 (en) | 2019-04-08 | 2020-06-10 | Schaeffler Technologies AG & Co. KG | Planetary gear |
| DE102022133507A1 (en) | 2022-12-15 | 2024-06-20 | Schaeffler Technologies AG & Co. KG | Spindle nut and method for producing a profile sleeve for a ball screw |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2540348A1 (en) * | 1975-09-10 | 1977-03-24 | Nussbaum Kg O | Low friction load nut on lifting spindle - is self locking in case of power failure |
| DE19854578A1 (en) * | 1998-11-26 | 2000-05-31 | Schaeffler Waelzlager Ohg | Movement converter for converting rotational to axial motion has threaded shaft and rollers with flexion springs and cage |
| CN101581354A (en) * | 2008-04-21 | 2009-11-18 | 梅西耶-布加蒂公司 | Actuator with main rod and auxiliary rod |
| CN102575730A (en) * | 2009-10-29 | 2012-07-11 | 舍弗勒技术股份两合公司 | Hydrostatic clutch actuator |
| DE102011003691A1 (en) * | 2011-02-07 | 2012-08-09 | Schaeffler Technologies Gmbh & Co. Kg | Roller screw drive has external thread, where housing surrounds spindle, and multiple planetary rollers are arranged in housing in rotating manner, where pins are supported in radial bearings at housing-fixed planetary roller carrier |
-
2014
- 2014-10-17 DE DE102014221090.9A patent/DE102014221090A1/en active Pending
- 2014-11-12 CN CN201410645699.7A patent/CN104653736B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2540348A1 (en) * | 1975-09-10 | 1977-03-24 | Nussbaum Kg O | Low friction load nut on lifting spindle - is self locking in case of power failure |
| DE19854578A1 (en) * | 1998-11-26 | 2000-05-31 | Schaeffler Waelzlager Ohg | Movement converter for converting rotational to axial motion has threaded shaft and rollers with flexion springs and cage |
| CN101581354A (en) * | 2008-04-21 | 2009-11-18 | 梅西耶-布加蒂公司 | Actuator with main rod and auxiliary rod |
| CN102575730A (en) * | 2009-10-29 | 2012-07-11 | 舍弗勒技术股份两合公司 | Hydrostatic clutch actuator |
| DE102011003691A1 (en) * | 2011-02-07 | 2012-08-09 | Schaeffler Technologies Gmbh & Co. Kg | Roller screw drive has external thread, where housing surrounds spindle, and multiple planetary rollers are arranged in housing in rotating manner, where pins are supported in radial bearings at housing-fixed planetary roller carrier |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120369A (en) * | 2017-06-22 | 2017-09-01 | 芜湖伯特利汽车安全***股份有限公司 | Electric card suitable for vehicle electric mechanical type brake system is clamped |
| CN112292306A (en) * | 2018-06-18 | 2021-01-29 | 采埃孚股份公司 | Steer-by-wire apparatus having spindle driver |
| CN112045579A (en) * | 2019-06-06 | 2020-12-08 | 弗兰茨·翰默机械制造两合公司 | Clamping device for clamping an object |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014221090A1 (en) | 2015-05-21 |
| CN104653736B (en) | 2019-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104653736A (en) | Planet rolling transmission mechanism and actuator having planet rolling transmission mechanism | |
| CN105579726A (en) | Assembly with friction arrangement | |
| CN108105293B (en) | Brake actuator, automobile brake system and electric automobile | |
| CN103930319B (en) | Parking lock device | |
| EP2345830B1 (en) | Electric linear actuator and electric brake device | |
| EP3160804B1 (en) | Pressure generator for a hydraulic vehicle brake system | |
| US7628727B2 (en) | Automatic speed reducing ratio-switching apparatus | |
| CN106321761B (en) | Planetary roller screw transmission mechanism and actuator with same | |
| DE102013022058B4 (en) | Electromechanically and hydraulically actuated vehicle brake with optional self-locking | |
| EP2388497A1 (en) | Parking mechanism for transmission | |
| JP5319687B2 (en) | Gear stage for vehicle seat | |
| CN105917133B (en) | It electromechanically and hydraulically can be activated and have the motor vehicle brake of optional self-locking | |
| CN108105292B (en) | Brake actuator, automobile brake system and electric automobile | |
| EP3068668A2 (en) | Electromechanically and hydraulically actuatable motor vehicle brake with selective self-locking | |
| CN103307239B (en) | Planetary rotor transmission device and hydrostatic actuator employing same | |
| CN107763153B (en) | Planetary gear type two-speed transmission for electric vehicle | |
| CN105697573A (en) | Assembly with a friction device | |
| KR20180083325A (en) | Actuator | |
| CN110131327B (en) | Spiral actuator of automobile clutch | |
| CN108071761A (en) | Movement conversion mechanism and the electric brake actuator using the movement conversion mechanism | |
| US10203029B2 (en) | Motor drive unit | |
| CN104583626A (en) | Wear-compensating actuation element for a clutch | |
| CN102057176B (en) | With the axial-adjustment unit of linear driving mechanism | |
| CN103415729A (en) | Device for changing an operating state of at least one switch element | |
| EP3262745B1 (en) | Regenerative drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |