CN109139846A - Planetary roller screw transmission mechanism, actuator and separation system - Google Patents
Planetary roller screw transmission mechanism, actuator and separation system Download PDFInfo
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- CN109139846A CN109139846A CN201810679065.1A CN201810679065A CN109139846A CN 109139846 A CN109139846 A CN 109139846A CN 201810679065 A CN201810679065 A CN 201810679065A CN 109139846 A CN109139846 A CN 109139846A
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- planetary roller
- planetary
- axial
- spindle drive
- roller
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- 238000000926 separation method Methods 0.000 title claims description 11
- 230000005540 biological transmission Effects 0.000 title description 9
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- 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
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Friction Gearing (AREA)
- Retarders (AREA)
Abstract
The invention relates to a planetary roller spindle drive, an actuator having a planetary roller spindle drive, and a release system for a clutch device of a motor vehicle. The planetary roller screw drive comprises a spindle and a plurality of planetary rollers which are mechanically coupled to the spindle and are arranged rotatably about their own longitudinal axis, each of the planetary rollers having a cylindrical shoulder in which a plurality of circumferential grooves form a structure which engages with the thread of the spindle, wherein the planetary roller screw drive furthermore has a planetary roller carrier which supports the planetary rollers at least in the axial direction, wherein the planetary rollers are of the same structure at least in the region of their structure and in the region of the spacing of the structure to at least one axial end of the respective planetary roller and are positioned on the spindle in different axial positions. The planetary roller spindle drive proposed here makes it possible to reduce production and assembly effort.
Description
Technical field
The present invention relates to a kind of planetary spindle drives, a kind of execution with planetary spindle drive
Device and a kind of separation system of the clutch apparatus for motor vehicle.
Background technique
In order to operate clutch, it is often necessary to pass through path for translation, so that clutch half portion to be separated from each other or by its that
This engagement.Operating device is needed for said purpose, and the operating device is also referred to as actuator or actuator, and by described
Operating device can generate the power of needs on corresponding path.There is following actuator, the actuator for said purpose
The rotational motion of one component is converted into the axial movement of other components, such as so that clutch is opened or closed.
Typical actuator is hydraulic output cylinder, or there are also planetary spindle drives.Planetary roller screw transmission
Mechanism includes lead screw, feed screw nut and planet being arranged on ring week in-between, being contained in planetary roller load-bearing part
Rolling element.One in component --- lead screw or feed screw nut -- is rotate driving, and another component is in antitorque setting
In the case of can be moved along the longitudinal axis of lead screw with the axial displacement of transmission ratio for corresponding to setting.
2015/081951 A1 of WO discloses a kind of actuator with planetary spindle drive (PWG), described
Actuator is especially structured to the clutch of operation vehicle.Planetary spindle drive include center, have screw pitch
Lead screw, the rotor of the lead screw and driver is torsionally connected, and can be driven by driver around pivot center.Lead screw
It is engaged with multiple planetary rollers.The planetary roller is also engaged with the gear ring for surrounding planetary roller, and the gear ring is along ring circumferential direction
With slot.Planetary roller is located in planetary roller load-bearing part on two ends.In the intermediate region of corresponding planetary roller
And between the supporting part in planet roller carrier, planetary roller reduces at the region of two end sides with diameter convex
Shoulder, the convex shoulder equally have the slot stretched on ring week, wherein the profile member suppressed between the slots is joined on gear ring mutually
It mends in the slot constituted, to transmit axial force transmission into gear ring and from the gear ring via this contoured portion
Onto planetary roller load-bearing part.
From 10 2,015 204 587 A1 of DE it is known that being respectively equipped with planet rolling in a distributed fashion on the ring week of lead screw
Son is right, and the planetary roller is engaged and is engaged with each other with lead screw.Mutually the planetary roller structure of reply is constituted in the same manner.
Summary of the invention
As starting point, the present invention is based on following purpose, a kind of planetary spindle drive is provided, one kind has
The actuator of planetary spindle drive and a kind of separation system of the clutch apparatus for motor vehicle, they are by clutch
The reliable axial operation of device device is expended with small structure space and low production and installation to be combined.
The purpose is by planetary spindle drive according to the present invention, actuator and for the clutch of motor vehicle
The separation system of device device.The advantageous design method of planetary spindle drive is given below.
The feature of claim can with any technically significant methods combination, wherein to this also it can be considered that
Come from the elaboration of following specification and come from the feature of attached drawing, this includes the design scheme of supplement of the invention.
Term is radially, axially with ring circumferential direction within the scope of this invention always referring to the pivot center or silk of planetary roller
The pivot center of thick stick.
The present invention relates to a kind of planetary spindle drive, the planetary spindle drive is specifically configured to
A part of the actuator of the separation system of clutch apparatus for motor vehicle.Planetary spindle drive includes lead screw
With multiple planetary rollers with screw mechanism engaging, being rotatably arranged around the longitudinal axis of its own, the planet rolling
Son is respectively provided with cylindrical convex shoulder, and in the convex shoulder, multiple ring circumferential grooves constitute the structure engaged with the screw thread of lead screw, wherein going
Furthermore star roller screw transmission mechanism has planetary roller load-bearing part, the planetary roller load-bearing part at least in axial direction supports
Planetary roller.Planetary roller at least in the region of its structure and the structure to corresponding planetary roller at least one
It constructs in the region at the interval of axial end portion and constitutes in the same manner, and planetary roller is located in lead screw on different axial positions
On.The support of planetary roller can be carried out either directly or indirectly.Preferably, planetary roller constructs constitute in the same manner completely.Row
Therefore different axially positions of the star roller on lead screw indicate that the planetary roller is disposed around the different of rotation axis
On angle position and it is disposed along on the different axial positions of rotation axis.In the corresponding way, it is joined to the spiral shell of lead screw
The structure or its each ring circumferential groove in line position also axially distinctly, that is, correspond to part on 360 ° of a complete circle
Volume is positioned relative to preceding planetary roller with following axial distance, and the axial distance corresponds to described part of the screw pitch of lead screw
Volume.
Planetary spindle drive is preferably constructed to, so that the planetary spindle drive does not have ring
Around or surround planetary roller gear ring.This can be realized the radial structure constructed very smallly to be integrated into showing for motor vehicle
More flexibilities are realized when in the powertrain deposited.Here, should not exclude according to the present invention: in planetary roller and planetary roller
Intermediary element, such as coating are provided between load-bearing part, however the intermediary element does not have in planet roller carrier and silk
The function of torque is transmitted between thick stick.
Lead screw is preferably provided at center, and has constant screw pitch.Planetary roller by planetary roller load-bearing part
Rotation guides while causing planetary roller each other in its positioning in terms of the angle position of common axis of rotation line.Row
The rotation axis of star roller corresponds to its longitudinal axis.
It is proposed in a design method of the invention, planetary spindle drive is that each planetary roller has extremely
The element that reclines of a few axial direction, the element that reclines is for vertically supporting corresponding planetary roller, wherein each member that reclines
Part has different axially extending.Thus, it is ensured that the different axial positions of planetary roller.
The element that reclines can be the integrated component part of planetary roller load-bearing part herein.In particular, the element that reclines
It can be made of the axial limit wall of planetary roller load-bearing part.
It is proposed in another alternative, the element that reclines is the component part of intermediate ring, and the intermediate ring is axially arranged
Between planetary roller and planetary roller load-bearing part.This indicates that planetary roller, which is axially supported at, is axially positioned in engagement
On intermediate ring beside convex shoulder, the intermediate ring is located in its radial position by planetary roller load-bearing part.Intermediate ring it is antitorque
It can be realized in a manner of the shape cooperation between intermediate ring and planetary roller load-bearing part, such as coaxially be prolonged by means of at least one
The pin stretched realizes that the pin is inserted in the hole being arranged in the angle position of restriction, wherein pin or hole setting are in two components
In one in intermediate ring and planetary roller load-bearing part, or it is arranged in the i.e. intermediate ring of two components and planetary roller load-bearing part
On one, and the hole is correspondingly separately positioned in another component.In the alternative embodiment, intermediate ring it is antitorque with
The mode of shape cooperation between intermediate ring and planetary roller load-bearing part is realized, such as by means of the outer toothed portion at intermediate ring
Realize, the outer toothed portion in the angle position of restriction with the interior teeth portion collective effect of planetary roller load-bearing part.This intermediate ring
It can be made of suitable plastics.
In addition, planetary roller can be respectively provided with axle journal, and the element that reclines accordingly at least one axial end portion
Can through hole constitute, mesoporous can have different depth, to be differently axially located planetary roller.
Therefore hole is arranged in intermediate ring, or be arranged in planet roller carrier itself.The advantages of design scheme
It is to constitute hole CONTACT WITH FRICTION between the hole bottom in axle journal and hole, the hole CONTACT WITH FRICTION generates small frictional dissipation.In order to
The axial end portion of the purpose, axle journal is preferably constituted spherically.
It is proposed in another alternative, planetary roller is respectively provided with the axis of first diameter at least one axial end portion
Neck, the cylindrical convex shoulder of corresponding planetary roller have second diameter, and the second diameter is greater than the first diameter of axle journal, so that
Cylindrical convex shoulder has axial boundary, and the element that reclines accordingly is made up of the different body section of axial width,
For differently axially position planetary roller.Therefore axial boundary is located between cylindrical convex shoulder and corresponding axle journal
The body section of different axial widths can be the integrated component part of intermediate ring, or be also planetary roller
The integrated component part of load-bearing part itself.This body section is more particularly to by intermediate ring or planetary roller load-bearing part
Fan-shaped section is constituted, and the section has different thickness compared with adjacent sector.
Preferably, it constructs to planetary roller mirror symmetry, so that the planetary roller is axially on opposite end
It constitutes in the same manner, to can be realized the support of identical structure type on two sides.In addition, thus simplifying installation.
It is proposed in the design scheme of alternative, planetary roller is respectively provided with axially extending at least one axial end portion
Hole, and the element that reclines accordingly is made up of the abutment face of bolt and axial direction, wherein bolt have different axial length and/or
Abutment face has different axial positions, for differently axially position planetary roller.
Abutment face is as in the following, axle journal extends since the face.Corresponding planetary roller be axially supported at this can
It carries out via the hole bottom of planetary roller, and/or is carried out via end face, the end face sticks in the abutment face for the element that reclines.
The element that reclines can also be realized by intermediate ring again herein, or also be realized by planetary roller load-bearing part itself.
Another variations axially supported propose that planetary spindle drive has extremely each planetary roller
A few ball, corresponding planetary roller is axially supported on the ball, wherein corresponding ball is axially supported in concave recess portion,
The recess portion constitutes the axial element that reclines, the axial direction support of the element for corresponding planetary roller (10) that recline.Concavity
Recess portion preferably comprise in the axial limit wall of planet roller carrier.Concave recess portion has different along axial direction herein
The depth that direction is constituted, so that the ball being located therein has different axial positions, thus by planetary roller associated there
It is arranged in different axial positions.Axial support is therefore in the design scheme middle ground of the invention via corresponding ball
It carries out.
Ball is used to vertically support each planetary roller together with roller bearing, and the difference for ensuring planetary roller
Axial position.The frictional dissipation when planetary roller rotates reduces as a result,.Radially, planetary roller is herein preferably
It is guided in intermediate ring, but the intermediate ring not ta-king up axial forces in the design scheme of the invention.
Another aspect of the present invention is actuator, and the actuator has planetary roller screw driver according to the present invention
Structure and driving device with the rotation of planetary spindle drive mechanical coupling, the driving device is for driving planet
The element of roller screw transmission mechanism, to realize translational motion.Actuator according to the present invention can also be referred to as modularization from
Clutch actuator (MCA).Translational motion by planetary spindle drive the element torsionally supported, such as example lead screw is held
Row, and for operating clutch apparatus to be opened or closed.For said purpose, the planet of planetary spindle drive
The rotor of roller carrier and driving device is torsionally connected, and planetary roller load-bearing part can be surrounded it by the driving device
The pivot center driving in center, so that generating the translation of lead screw.
In addition, in order to realize the purpose, a kind of separation system of clutch apparatus for motor vehicle is provided, described point
There is actuator according to the present invention from system and the interface for being transmitted to the translational motion of generation on clutch apparatus.
Another theme of the invention is the system to be executed, especially clutch apparatus, and the system has according to the present invention
Separation system, wherein separation system is designed for, and the rotary motion of rotating device is converted into translational motion, to operate clutch
Device.
Planetary spindle drive according to the present invention is configured to the row in accordance with screw pitch for the transmission ratio for having constant
Star roller screw transmission mechanism, and have the following advantages that, the planetary spindle drive can be by small volume
Reliable clutch operating is realized with low manufacturing cost and simple installation.
Detailed description of the invention
It is elaborated under relevant technical background with reference to affiliated attached drawing below present invention as described above, the attached drawing
Preferred design scheme is shown.The present invention does not carry out any restrictions by the view of pure signal, wherein it should be noted that in attached drawing
Shown in embodiment be not limited to the range shown.It is shown in the accompanying drawings:
Fig. 1 shows the sectional view of the not lead screw of the planetary spindle drive of first embodiment,
Fig. 2 shows the perspective view in main force's line direction in this planetary spindle drive,
Fig. 3 shows the sectional view of the power load of the planetary spindle drive,
Fig. 4 shows the perspective view in the secondary line of force direction in this planetary spindle drive,
Fig. 5 shows the perspective view of the planetary roller load-bearing part of first embodiment,
Fig. 6 shows the first perspective view of the intermediate ring of first embodiment,
Fig. 7 shows the second perspective view of intermediate ring,
Fig. 8 shows the side view of intermediate ring,
Fig. 9 shows the perspective view of the intermediate ring in planetary roller load-bearing part,
Figure 10 shows the sectional view of the intermediate ring in planetary roller load-bearing part,
Figure 11 shows the side view of planetary roller,
Figure 12 shows the perspective view of planetary roller,
Figure 13 shows the sectional view of the not lead screw of the second embodiment of planetary spindle drive,
Figure 14 shows the perspective view of the planetary roller load-bearing part of second embodiment,
Figure 15 shows the sectional view of the planetary roller load-bearing part of second embodiment,
Figure 16 shows the first perspective view of the intermediate ring of second embodiment,
Figure 17 shows the intermediate ring of third embodiment,
Figure 18 shows the sectional view of the not lead screw of the planetary spindle drive of third embodiment,
Figure 19 shows the perspective view of the intermediate ring of the 4th embodiment,
Figure 20 shows the perspective view of the intermediate ring of the 5th embodiment,
Figure 21 shows the sectional view of the lead screw of second embodiment,
Figure 22 shows the perspective view of lead screw,
Figure 23 shows the sectional view with lead screw of the planetary spindle drive of the 4th embodiment.
Specific embodiment
The different embodiments of planetary spindle drive according to the present invention are shown in Fig. 1,13,18 and 23
Out.The common ground of these embodiments is lead screw 1 respectively, however can not in its embodiment shown in Fig. 1,13 and 18
See.Lead screw 1 is shown in FIG. 23.With corresponding lead screw axis in parallel, lead screw ring week on be provided with multiple planetary rollers
10, the ring circumferential groove 13 being arranged on the cylindrical convex shoulder 11 of corresponding planetary roller 10 is engaged with the screw thread of lead screw 1.
Planetary roller 10 indirectly or directly axially and/or is radially guided by planetary roller load-bearing part 30.The planetary roller
Load-bearing part 30 places a part to form bearing 105 outside it.
Planetary roller load-bearing part 30 can be placed in rotation, and generate the axial feed motion of lead screw, this passes through
As under type is realized: the rotational motion of planetary roller load-bearing part 30 being transmitted on planetary roller 10, the ring circumferential groove of planetary roller
13 engage with the screw thread of lead screw, so that the collective effect as screw nut of planetary roller 10, and rotational motion is converted into
The axial movement of the translation of the lead screw torsionally supported.The translational motion for operating clutch apparatus, disconnected for it or
Closure.
The principle can also work on the contrary in the following way: in lead screw rotation, be threaded into planet rolling
In the ring circumferential groove 13 of son 10, the planetary roller is axial restraint, however can be rotated around its corresponding longitudinal axis 27.By
Axial centripetal force can be transmitted on planetary roller 10 by this from lead screw, and the planetary roller is held by it in planetary roller
Axial centripetal force is transmitted on planetary roller load-bearing part by the direct or indirect support in holder 30.
In the following, discussing the different design schemes of planetary spindle drive according to the present invention.Fig. 1 shows planet
The first embodiment of roller screw transmission mechanism.Planetary roller 10 has the axle journal 14 being arranged in two sides, and the axle journal is inserted into
In the hole of intermediate ring 50, the intermediate ring is arranged between planetary roller 10 and planetary roller load-bearing part 30.Planetary roller 10 exists
This is axially supported on the intermediate ring 50 shown in left side.The hole for accommodating axle journal 14 in intermediate ring 50 has not herein
Same depth, as referring to as being described in detail Fig. 8.Each planetary roller 10 obtains different axial positions 18 as a result, such as from planet
In the position of axial first slot of roller 10 it is visible as.Planetary roller 10 is arranged with axially offsetting as a result, enables it to
Enough all constructions constitute in the same manner and do not require specific planetary roller 10 and specific angle position particularly relevant.
Therefore intermediate ring 50 constitutes the element 40 that reclines for being used for planetary roller 10.
There are multiple axially extending pins 60 on its side away from planetary roller 10 in the intermediate ring 50 shown in left side,
The pin is arranged in the corresponding hole 61 in planet roller carrier 30.This is used to prevent the torsion of intermediate ring 50.
The intermediate ring 50 is axially sticked on herein on the axial limit wall 31 of planetary roller load-bearing part 30.
There is through hole in the intermediate ring 50 shown in right side, the through hole is used to be contained in the axle journal 14 that right side is arranged.
Here, the axial support of planetary roller 10 is carried out via the end side of axle journal 14.The intermediate ring 50 is by for axial restraint
Fixing element 104 is fixed in its axial position, and is fixed in its angle position by torsion-resisting element 103.
In addition, intermediate ring is connect with loading plate 101, the loading plate optionally has on axial flange for outside
Friction element rubbing surface 102.
Load caused by power from the different line of force visible in Fig. 2-5 and by effect.Main force's line 108 is shown here in Fig. 2,
Main force's line is dominant in planetary spindle drive.It is seen that main force's line 108 is imported by lead screw 1, from
The lead screw is directed on planetary roller 10, and from the planetary roller again via planetary roller load-bearing part 30 and bearing
150 export.Whereby, corresponding main load 107 can be overcome, wherein planetary spindle drive is axially via lead screw 1
It is supported by counter-force 161.Secondary load 110 in opposite direction is also shown in broken lines in Fig. 3, wherein planetary roller screw is driven
Mechanism is axially supported via lead screw 1 by secondary counter-force 109 in the corresponding way.The corresponding pair line of force 111 is shown in FIG. 4.
Fig. 5 is shown as the planetary roller load-bearing part 30 of independent component.It is seen that, planetary roller load-bearing part 30 exists herein
There is axial limit wall 31, position is arranged in the limit wall at a particular angle in hole 61 on axial end side.The hole
61 for being contained in the pin 60 of the intermediate ring 50 shown in the right.On the end of the end side of planet roller carrier 30, it is provided with
The torsion-resisting element 32 that axis in the form of hole is set in parallel, and the axial restraint element 33 in the form of hole.
The different views of the visible intermediate ring 50 in right side setting in figures 6 to 8.It especially shows in Fig. 6 for accommodating
The hole 90 of the axle journal 14 of planetary roller 10.Furthermore as it can be seen that intermediate ring 50 has the channel 72 in the center for lead screw.Fig. 7 is shown
The pin 60 that axis extends parallel to, the pin is designed for insertion into the hole 61 of planetary roller load-bearing part 30, referring to Fig. 5.
Fig. 8 is shown, and the hole 90 in intermediate ring 50 has different hole depths 91, to realize the difference of each planetary roller
Axially position.
Installation condition of the visible intermediate ring 50 in planet roller carrier 30 in figures 9 and 10, wherein it is seen that, in
Between ring 50 be axially supported on the axial limit wall 31 of planetary roller load-bearing part 30.
Figure 11 and 12 is illustrated in detail planetary roller 10.Particular it appear that be cylindrical convex shoulder 11, second diameter 12 is big
In the first diameter 15 of axle journal 14.Thus axial boundary 16 is constituted.13 one side of ring circumferential groove shape in main force's line direction 19
Axially contact portion is formed in opposite power direction 20 at axially contact portion, and in its opposite side.In the end side of axle journal 14
Upper limit dead axle to abutment face 21,22, the axial abutment face is for constituting hole CONTACT WITH FRICTION portion.Axle journal 14 itself is in its ring
The first bush(ing) bearing face 23 and the second bush(ing) bearing face 24 are constituted on circumferential surface.Deviating from for cylindrical convex shoulder 11 is axial
The side of boundary 16 constitute the axial contact surface 25 for importing secondary power effect.It is seen that planetary roller 10 encloses
It is symmetrically constructed around plane of mirror symmetry 26.
Another embodiment of planetary spindle drive according to the present invention in figure 13 illustrates.Here, intermediate
Ring 50 is configured to outer toothed portion 70, and the outer toothed portion is shape-ordinatedly made with the interior teeth portion of planetary roller load-bearing part 30 jointly
With to realize the antitorque of intermediate ring 50.
Figure 14 and 15 shows the planetary roller load-bearing part 30 designed thus, herein the also clearly visible end side in bevel-faced form
Introducing auxiliary device 114.In order to accommodate the fixing element 104 for axial restraint, planetary roller load-bearing part 30, which has, to be surround
Slot 112.
It is furthermore shown in Figure 14, the inner wall part of planetary roller load-bearing part 30 is structured to determining for corresponding intermediate ring 50
Center device 113.For the embodiment of planetary spindle drive, the intermediate ring 50 on the left side and show so far
Between ring be differently composed.The intermediate ring 50 being shown in FIG. 16 herein corresponds to intermediate ring in figure 13 illustrates and as group
There are multiple elements 40 that recline at part, the element that reclines is configured to the body section 41 of intermediate ring 50.Each ontology
Section 41 has different thickness, so that planetary roller 10 is supported in different axial positions, the planetary roller is by it
Axial boundary 16 sticks in body section.
Correspondingly, what is be arranged in the axial limit wall 31 of planet roller carrier 30 is used to accommodate planetary roller 10
The depth having the same of recess portion 43 of axial end portion.
The intermediate ring 50 being shown in FIG. 17 is the alternative of intermediate ring in figure 13 illustrates.It is seen that described
Intermediate ring 50 only has flat surface, because being provided only with the axial portion that reclines for planetary roller 10 on the intermediate ring.
Figure 18 shows the embodiment of another alternative of planetary spindle drive according to the present invention.Left side is herein
Corresponding to embodiment in figure 13 illustrates, and right side has the intermediate ring 50 of specific composition, and the intermediate ring has axial
The bolt 73 of extension, the bolt extend in the axially extending hole 17 correspondingly constituted in planetary roller 10.
In Figure 19 and 20, the different embodiments of intermediate ring 50 are shown here.Figure 19 shows this intermediate ring 50, institute
The body section 41 that intermediate ring has the different-thickness being correspondingly shown in FIG. 16 is stated, bolt 73 extends from the body section
Come.Figure 20 shows the embodiment of the intermediate ring 50 of the body section 41 without this different-thickness, so that the intermediate ring
50 constitute flat axial abutment face 42.The intermediate ring 50 being shown in FIG. 20 is suitable for the planet being shown in FIG. 18 rolling
It is used on the right side of column lead-screw drive mechanism.Intermediate ring 50 in Figure 17 and 20 in the flat of the embodiment shown in right side
Abutment face is used to absorb the secondary power along the secondary line of force 111.
Figure 21 and 22 shows the shape of planetary roller 10, as it is in the embodiment of planetary spindle drive
As use.Clearly visible axially extending hole 17 herein, the hole and the rotation axis 2 of planetary roller 10 are coaxially set
It sets.Similarly, planetary roller 10 constitutes axial contact surface 25, as its in Figure 22 it is visible as.
Figure 23 shows another embodiment of planetary spindle drive according to the present invention, wherein right side is according to figure
Embodiment in 18 is constituted.Left side is configured to again, so that a ball 100 is arranged to each planetary roller 10, the ball is expert at
It is axially supported in a manner of the friction of hole in star roller carrier 30 or on its axial direction limit wall 31, especially in recess portion 43.
Recess portion 43 is preferably constructed to the negative forming element of the form of concave segment herein, and the forming element is respectively provided with not
Same axial depth, so that there is different axial positions in the ball 100 being wherein arranged, thus by being arranged to the planet of the ball
Roller 10 is maintained in different axial positions.
In the invention proposed here, the necessary axile displacement around the slot of the planetary roller of lead screw setting passes through structure
The axile displacement of identical planetary roller realizes that the lead screw has screw pitch.As a result, in manufacture planetary roller screw driver
It can be realized the reduction that production and installation expend when structure.
Reference signs list:
1 lead screw
2 rotation axis
10 planetary rollers
11 cylindrical convex shoulders
12 second diameters
13 ring circumferential grooves
14 axle journals
15 first diameters
16 axial boundaries
17 axially extending holes
18 different axial positions
The 19 axially contact portion on main force direction
The 20 axially contact portion on opposite power direction
21 first axis abutment faces
22 second axial abutment faces
23 first bush(ing) bearing faces
24 second bush(ing) bearing faces
25 axial contact surfaces
26 plane of mirror symmetry
27 longitudinal axis
30 planetary roller load-bearing parts
31 axial limit walls
32 torsion-resisting elements
33 axial restraint elements
40 recline element
41 body sections
42 axial abutment faces
43 recess portions
50 intermediate rings
60 axially extending pins
61 holes
Outer toothed portion at 70 intermediate rings
72 channels
73 bolts
The interior teeth portion of 80 planetary roller load-bearing parts
90 holes
91 hole depths
100 balls
101 loading plates
102 are used for the rubbing surface of outer friction element
103 torsion-resisting elements
104 are used for the fixing element of axial restraint
150 bearing units
161 counter-forces
107 main loads
108 main force's lines
109 secondary counter-forces
110 secondary loads
The 111 secondary line of forces
112 slots
113 centring means
114 introduce auxiliary device
Claims (10)
1. a kind of planetary spindle drive, especially as the execution of the separation system of the clutch apparatus for motor vehicle
The component part of device, the planetary spindle drive includes lead screw (1) and multiple and the lead screw (1) mechanically engages
, can be around the planetary roller (10) that its own longitudinal axis be rotatably arranged, the planetary roller is respectively provided with cylindrical convex
Shoulder (11), in the convex shoulder, multiple ring circumferential grooves (13) constitute the structure engaged with the screw thread of the lead screw (1), wherein described
Furthermore planetary spindle drive has planetary roller load-bearing part (30), the planetary roller load-bearing part is at least along axial side
To supporting the planetary roller (10),
It is characterized in that,
The planetary roller (10) is at least in the region of its structure and in the structure to corresponding planetary roller (10)
Structure is constituted in the same manner in the region at the interval of at least one axial end portion, and the planetary roller is in different axial positions
On be located on the lead screw (1).
2. planetary spindle drive according to claim 1,
It is characterized in that,
The element that reclines that the planetary spindle drive has at least one axial for each planetary roller (10)
(40), the element that reclines supports corresponding planetary roller (10) for axial, wherein each element that reclines (40) have it is different
It is axially extending.
3. planetary spindle drive according to claim 2,
It is characterized in that,
The element that reclines (40) is the integrated component part of the planetary roller load-bearing part (30), is especially rolled by the planet
The axial limit wall (31) of sub- load-bearing part (30) is constituted.
4. planetary spindle drive according to claim 2,
It is characterized in that,
The element that reclines (40) is the component part of intermediate ring (50), and the intermediate ring is axially disposed at the planetary roller
(10) between the planetary roller load-bearing part (30).
5. planetary spindle drive according to any one of claim 2 to 4,
It is characterized in that,
The planetary roller (10) is respectively provided with axle journal (14) at least one axial end portion, and the corresponding member that reclines
Part (40) through hole (90) is constituted, wherein the hole (90) can have different hole depths (91), for differently axial fixed
The position planetary roller (10).
6. planetary spindle drive according to any one of claim 2 to 4,
It is characterized in that,
The planetary roller (10) is respectively provided with axle journal (14) at least one axial end portion, and the axle journal has first diameter
(15), and the cylindrical convex shoulder (11) of corresponding planetary roller (10) has second diameter (12), the second diameter
Greater than the first diameter (15) of the axle journal (14), so that the cylindrical convex shoulder (11) has axial boundary
(16), and the corresponding element (40) that reclines is made up of the body section (41) of different axial widths, for difference
Planetary roller described in ground axially position (10).
7. the planetary spindle drive according to any one of claim 2 to 6,
It is characterized in that,
The planetary roller (10) is respectively provided with axially extending hole (17) at least one axial end portion, and corresponding institute
It states the element that reclines (40) to be made up of the abutment face (42) of bolt (73) and axial direction, wherein the bolt (73) has different axial directions
Length and/or the abutment face (42) have different axial positions, for positioning the planetary roller (10) axially distinctly.
8. planetary spindle drive according to claim 2,
It is characterized in that,
The planetary spindle drive has at least one ball (100), corresponding row for each planetary roller (10)
Star roller (10) is axially supported on the ball, wherein corresponding ball (100) is axially supported in concave recess portion (43),
The recess portion constitute it is axial it is described recline element (40), the element that reclines is for axial support corresponding planetary roller
(10)。
9. a kind of actuator, including planetary spindle drive according to claim 1 to 8 and with
The driving device of the rotation of the planetary spindle drive mechanical coupling, the driving device is for driving the star to roll
The element of column lead-screw drive mechanism is to realize translational motion.
10. a kind of separation system of the clutch apparatus for motor vehicle, including actuator according to claim 9 and
Interface, the interface are used to the translational motion of generation being transmitted to clutch apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017114198.7 | 2017-06-27 | ||
| DE102017114198.7A DE102017114198A1 (en) | 2017-06-27 | 2017-06-27 | Planetary roller screw, actuator and release system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109139846A true CN109139846A (en) | 2019-01-04 |
| CN109139846B CN109139846B (en) | 2023-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810679065.1A Active CN109139846B (en) | 2017-06-27 | 2018-06-27 | Planetary roller screw transmission mechanism, actuator and separation system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109139846B (en) |
| DE (1) | DE102017114198A1 (en) |
Cited By (1)
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| CN111022599A (en) * | 2019-11-28 | 2020-04-17 | 北京自动化控制设备研究所 | Supporting device for planetary roller screw and electromechanical actuator with same |
Families Citing this family (3)
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| DE102017125149B4 (en) | 2017-10-26 | 2019-09-19 | Schaeffler Technologies AG & Co. KG | Planetary roller screw, actuator and release system |
| DE102018104095A1 (en) | 2017-12-12 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Planetary roller screw, actuator and release system |
| CN111998010B (en) * | 2020-09-15 | 2022-04-01 | 嘉兴爱克斯机械技术有限公司 | Novel friction block linkage mechanism for automatic disengaging gear clutch of barring gear |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102017114198A1 (en) | 2018-12-27 |
| CN109139846B (en) | 2023-05-12 |
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