WO2017137037A1 - Betätigungszylinder mit an ihm befestigten faltenbalg - Google Patents
Betätigungszylinder mit an ihm befestigten faltenbalg Download PDFInfo
- Publication number
- WO2017137037A1 WO2017137037A1 PCT/DE2017/100088 DE2017100088W WO2017137037A1 WO 2017137037 A1 WO2017137037 A1 WO 2017137037A1 DE 2017100088 W DE2017100088 W DE 2017100088W WO 2017137037 A1 WO2017137037 A1 WO 2017137037A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- actuating cylinder
- fastening
- bellows
- region
- 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.)
- Ceased
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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/08—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member
- F16D25/082—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members co-inciding with the axis of rotation
- F16D25/083—Actuators therefor
-
- 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
- F16D23/14—Clutch-actuating sleeves or bearings; Actuating members directly connected to clutch-actuating sleeves or bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
- F16J3/042—Fastening details
-
- 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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/08—Details or arrangements of sealings not provided for in group F16D3/84
Definitions
- the invention relates to an actuating cylinder, preferably a slave cylinder or master cylinder, for an actuation system of a motor vehicle clutch, i. a clutch of a motor vehicle, such as a car, truck, bus or agricultural utility vehicle, with a housing, a piston forming with this housing a fluidic pressure chamber and slidably received in this housing, and a bellows, which is held with a first mounting portion on the housing and with a, the first mounting portion opposite the second mounting portion is non-slidably coupled to the piston.
- a clutch in particular a friction clutch, with an actuating system having such an actuating cylinder.
- DE 10 2014 208 901 A1 discloses, for example, a bellows for a slave cylinder in a housing of a clutch or brake system, with at least one ring at one end, for at least form-fitting attachment to a relative to the housing
- displaceable mounting ring or the housing is designed, and from which extends away a main body having a plurality of folds.
- the main body is secured to the ring such that an insertion force acting on the bellows as it is inserted into the mounting ring and / or housing causes the ring to pivot outwardly.
- the fastening element is designed as a wire forming ring.
- a wire-forming ring is on the one hand inexpensive to produce, on the other hand, it can be inserted in a particularly space-saving manner in the bellows.
- fastener made in this context of a metal wire particularly few manufacturing steps for forming the finished fastener are necessary.
- the fastening element has at least one loop-shaped / hook-shaped, protruding from an arcuate base section elevation / projection / eyelet, which on the housing fixed receiving area anchored / held / fastened. As a result, a particularly solid attachment of the bellows is implemented on the housing.
- the base section is furthermore located on a side of the first fastening region facing the second fastening region, and if the at least one protrusion projects through a through hole in the first fastening region, the fastening element is particularly well integrated in the bellows.
- the fastening element has a plurality of elevations which are arranged at a distance from each other in the circumferential direction of the bellows and which each penetrate a through-hole in the first fastening area.
- the first fastening area is held stable at a plurality of circumferential areas.
- the fastening element is fastened to a sleeve-shaped collar region of the housing. Thus, the fastener is even more robust fixed to the housing.
- the fastening element is additionally anchored / fastened / held on a hook-shaped projection of the housing (preferably directly with its at least one elevation), the housing is to be adapted particularly slightly to accommodate the bellows.
- the fastening element engages around the projection (preferably with its at least one elevation) in a form-fitting manner on a side facing away from the first fastening region.
- the attachment is designed to save space.
- the invention relates to a clutch, preferably a friction clutch, for a drive train of a motor vehicle, with an actuating system having an actuating cylinder according to at least one of the embodiments described above.
- the clutch is particularly durable actuated.
- a bellows fastening is implemented on an actuating cylinder, preferably in the form of a slave cylinder, namely a concentric slave cylinder (CSC) .
- CSC concentric slave cylinder
- a bellows radially outward of the slave cylinder is present, which facilitates insertion
- This bellows is usually according to the prior art ausgurlager section on a retaining ring, in particular by a snap hook connection, attached and attached to the pressure chamber side behind a CSC housing (housing) web.However, at this point ties the bellows According to the invention it is therefore proposed to optimize the Faltenbalgbefest Trent on the part of the pressure chamber, for which a preferably annular wire forming device is provided It is inserted into slit-like recesses (through-holes) of the bellows and fixed to hooks (projections) of the CSC housing, whereby the bellows is axially secured.
- FIG. 1 is a perspective view of an actuating cylinder according to the invention according to a preferred first embodiment, wherein a bellows of the actuating cylinder from its outer side and a bellows on a housing of the actuating cylinder fixing fastener in the region of a loop-shaped elevation are shown
- Fig. 2 is another perspective view of the actuating cylinder of FIG.
- FIG. 3 is a longitudinal sectional view of the actuating cylinder of Figs. 1 and 2 in a region of the housing at which the fastening element connects a first fastening region of the bellows with one of the projections of the housing,
- FIG. 4 is a longitudinal sectional view of the actuating cylinder similar to FIG. 3, wherein a collar portion of the housing having the projections is closer to be seen,
- FIG. 5 is a longitudinal sectional view of the actuating cylinder similar to FIG. 4, wherein the bellows and the fastening element are shown before connecting to the projection of the housing,
- Fig. 6 is an exploded perspective view of a subassembly of the actuating cylinder according to FIGS. 1 to 5, in which the housing, the fastening element and the bellows are shown separated from each other,
- Fig. 7 is a perspective view of the housing, as shown in the actuating cylinder according to the invention according to FIGS. 1 to 5 is used, wherein two mutually spaced along the circumference arranged hook-shaped projections can be seen,
- Fig. 8 is a perspective view of the in Figs. 1 to 6 inserted bellows of the hook-shaped projections in operation facing end side of the bellows on which the first mounting portion is formed, wherein each loop-shaped elevation of the fastener, a through hole is introduced,
- FIG. 9 is a perspective view of a partial assembly of bellows and fastener, wherein the insertion of one of the loop-shaped elevations in a through hole of the first attachment region can be seen by way of example, 10 shows a perspective view of the partial assembly already shown in FIG. 9, wherein now all three elevations of the fastening element penetrating the first fastening region can be seen,
- Fig. 1 1 is a perspective view of a manufacturing step of the fastener, as shown in the actuating cylinder of FIGS. 1 and 2 is used, wherein in the left partial representation of an annular blank in a
- Fig. 12 is a longitudinal sectional view of an actuating cylinder according to the invention according to a second embodiment, wherein the representation section is similar to the section of Fig. 4 of the first embodiment selected and can recognize that the hook-shaped projection of the housing now forms a groove in which the fastener in both supported axial directions of the housing,
- FIG. 13 is a detailed view of the housing, as it is used in the actuating cylinder of FIG. 12, wherein the hook-shaped projection is particularly well visible, and
- Fig. 14 is a longitudinal sectional view of an actuating cylinder according to the prior art, wherein the basic structure of a generic actuating cylinder is shown.
- an inventive actuating cylinder 1 is shown according to a first embodiment.
- the actuating cylinder 1 is as a slave cylinder designed.
- the actuating cylinder 1 is configured as a slave cylinder mounted concentrically on a transmission shaft during operation.
- this actuating cylinder 1 is also designed as a master cylinder.
- the actuating cylinder 1 has a completely penetrating in the axial direction opening 16, through which the transmission shaft of a here not shown for clarity gear is pushed through during operation.
- the actuating cylinder 1 is designed as a fluidic, namely hydraulic actuating cylinder 1. It is part of a fluidic / hydraulic actuation system for a motor vehicle clutch, in particular for a friction clutch, of a motor vehicle drive train.
- the basic structure of the actuating cylinder 1 is known from the prior art. Accordingly, the actuating cylinder 1 in principle as the slave cylinder disclosed in DE 10 2014 208 901 A1 is constructed and functioning, which is why the slave cylinder disclosed herein is considered to be integrated herein.
- a similar actuating cylinder 1 according to the prior art is also shown in detail in FIG. 14 in longitudinal section.
- the actuating cylinder V of the prior art (and also the actuating cylinder 1) in principle a housing 2.
- a piston 4 is displaceably mounted in a displacement direction along a central axis of the opening 16. It can also be seen how the piston 4 is received in the housing 2.
- the piston 4 closes with the housing 2 an annular pressure chamber 3, which pressure chamber 3 with fluid / hydraulic fluid / oil can be pressurized.
- the piston 4 is connected to a protruding from the housing 2, the first end portion with an actuating bearing 17 slidably connected.
- the actuating bearing 17 (in the form of a roller bearing) cooperates in operation in the usual manner with an actuating element, such as a plate spring or a pressure pot, a clutch to the clutch during a displacement of the piston 4 between a disengaged and a coupled position back and forth move.
- 14 shows a maximally extended position of the piston 4 out of the housing 2, wherein the piston 4 is always in the same position with a second end region opposite the first end region. Housing 2 is inserted, that the pressure chamber 3 is not opened to the piston 4 out.
- the bellows 5 has two attachment regions 6 and 7 arranged at its respective axial end.
- a first fastening region 6 is fixedly connected to the housing 2 and a second fastening region 7 is coupled to the actuating bearing 17 / the piston 4 so as to be non-displaceable.
- the second fastening region 7 is snapped here form-fitting manner on a fastening ring 18, the fastening ring 18 in turn being fastened to a bearing inner ring 22 of the actuating bearing 17 connected to the piston 4.
- the first attachment area 6 is anchored to the housing 2.
- the first attachment portion 6 of the bellows 5 is attached according to the invention in a special way to the housing 2.
- a separate fastening element 8, which is formed in one piece with respect to the bellows 5, is provided which, in particular in FIGS. 6 and 9 to 1 1 is clearly visible.
- the fastening element 8 is positively connected to the first fastening region 6 and the housing 2 in such a way that the first fastening region 6 is attached in a form-fitting manner to the housing 2 via this fastening element 8.
- the fastening element 8 is in particular held in a form-fitting manner on the part of the first fastening region 6, wherein it engages behind the first fastening region 6, in particular in the axial direction.
- the fastening element 8 is made from a wire-forming ring 10.
- a wire-forming ring 10 is a wire section bent into a ring, which is preferably connected in a material-locking manner at its two ends to form a continuous ring.
- an exemplary blank 21 can be seen in the left partial representation, which extends prior to the forming step to form the geometrically finished fastener 8 within an extension plane.
- the wire-forming ring 10 / the fastening element 8 has three with respect to an arranged in the plane of extension base portion 1 1 in the circumferential direction
- the elevations 12 all extend to the same axial side (viewed in the installation position) away from the base section 11 running in the plane of extent.
- the three elevations 12 differ in their width viewed in the circumferential direction. The completeness is mentioned, however, that this width configuration can be individually adapted to the respective available space on the housing 2. Accordingly, at least two elevations 12 can be configured with the same width, wherein the third elevation 12 is then again configured with a larger or smaller width than the other two elevations 12. It is also possible to provide all elevations 12 with the same width. Furthermore, it is also possible in further embodiments to form a plurality or less than three elevations 12 on the wire forming ring 10.
- the wire-forming ring 10 is formed from a metal wire, namely a steel wire. However, in principle, other materials, such as other metals, can be used for this wire-forming ring 10.
- the bellows 5, as can be clearly seen in FIG. 8, has in the region of its annular, first fastening region 6 a plurality of penetrating through-holes 13 penetrating it in the axial direction.
- Each through hole 13 is configured as an arcuate slot extending in the circumferential direction of the first attachment portion 6.
- Each through-hole 13 is in its length (extension in the circumferential direction) on the respective elevation 12, which in the assembled state according to FIGS. 9 and 10 permeates, tuned.
- the elevations 12 each differ in their width, the individual through holes 13 are also formed with different lengths.
- a narrowest elevation 12 penetrates a narrowest through hole 13 and a central, formed in its width between the widths of the widest and the narrowest elevation 12, elevation 12 a central through hole 13.
- Each elevation 12th protrudes so far away from the base portion 1 1 that it completely penetrates the first attachment portion 6 in the axial direction and protrudes on a side facing away from the second attachment portion 7 of the first attachment portion 6 to form a loop.
- the base portion 1 1 is placed on a side facing the second attachment portion 7 side of the first attachment portion 6.
- the fastening element 8 of the bellows 5 is fixed to a housing-fixed receiving portion 9 in the form of a collar portion 14 of the housing 2.
- This collar region 14 can be clearly seen in FIG.
- the collar portion 14 is configured radially outside of the pressure chamber 3 and is made of a material integral with the housing 2.
- the collar portion 14 extends in a sleeve-like manner in the axial direction of the housing 2 (i.e., parallel to the central axis of the opening 16 / to the direction of displacement of the piston 4).
- each elevation 12 is form-fittingly fastened to this collar region 14.
- each elevation 12 a hook-shaped projection 15 is formed on a radial outer side 23 of this collar portion 14. Two of the three projections are also clearly visible in FIG.
- FIG. 5 it can be seen how the in Figs. 9 and 10 shown assembly of bellows 5 and fastener 8 is arranged on a sliding in the axial direction of the collar portion 14. This assembly is then pushed onto the collar region 14 in the axial direction.
- the first mounting portion 6 is already pushed so far on the collar portion 14 that the survey 12 is snapped onto the projection 15. Due to the annular extension and the formation of the fastening element 8 as a wire-forming ring 10, the three forms in the circumferential direction Elevations 12 stable receiving positive connection between the fastener 8 and the housing 2 through the projections 15.
- the bellows 5 is supported with its first attachment region 6 to an axial direction away from the second attachment region 7 by means of a plurality of stop tabs 24 attached to the housing 2.
- the stop tabs 24 are arranged distributed in the circumferential direction of the first attachment region 6 and formed in one piece with the housing 2.
- the bellows 5 or the base section 1 1 is axially in addition to the stop tabs 24 during operation.
- the bellows 5 remains in contact even on these stop tabs 24 during operation, since the elevations 12 ensure the said anchoring.
- the bellows 5 is restricted in an axial direction by the anchorage (ie, by the protrusions 12) and supported in a different axial direction by the housing 2 itself.
- the first attachment portion 6 is supported in both axial directions of the housing 2.
- a second embodiment is further illustrated.
- the projections 15 can also be formed somewhat differently.
- Each of the projections 15 is here provided with a further shoulder 19, which protrudes in the radial direction from the outer side 23 of the collar portion 14 to the outside, so that a groove 20 is formed.
- the groove 20 is dimensioned such that the elevation 12 is fixed in the axial direction both in an extension direction and in a retraction direction of the piston 4 out of the pressure chamber 3 and into it.
- the elevation 12 is positively locked in this groove 20 in a first axial direction and in a second axial direction opposite thereto.
- a bellows 5 according to the invention is fastened to a CSC housing (housing 2) by means of a wire forming device (fastening element 8), wherein a receptacle (projection 15) is provided on the CSC housing 2.
- the invention particularly relates to the connection between the bellows 5, the CSC housing 2 and the corresponding wire forming device 8.
- the wire forming device 8 may be made of an annular metal wire.
- the device has three feet (bumps 12) with which it is connected / attached to the CSC housing 2.
- a receptacle in the form of projections 15 for the feet 12 is provided on the housing 2, so that the bellows 5 is well secured and the fastening force as evenly distributed along the circumference of the various surveys / the various projections 15.
- holes 13 are provided through which the fastening feet 12 protrude.
- a receptacle for the wire device 8 is again provided on the housing 2, the location and the number of receptacles (projections 15) being dependent on the respective required installation space.
- the attachment of the device 8 is attached to the CSC housing 2 tangentially tangentially.
- the bellows 5 lies on the tabs (on the collar portion 14) above a common actuating cylinder / CSC 1.
- the bellows 5 is finally connected to the housing 2 by means of the device 8.
- the assembly of the device is effected by a latching mechanism, as in the connections with the Fign. 4 and 5 is shown particularly clearly.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112017000806.9T DE112017000806A5 (de) | 2016-02-11 | 2017-02-07 | Betätigungszylinder mit an ihm befestigten Faltenbalg |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016202035.8 | 2016-02-11 | ||
| DE102016202035.8A DE102016202035B3 (de) | 2016-02-11 | 2016-02-11 | Betätigungszylinder mit an ihm befestigten Faltenbalg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017137037A1 true WO2017137037A1 (de) | 2017-08-17 |
Family
ID=58192020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2017/100088 Ceased WO2017137037A1 (de) | 2016-02-11 | 2017-02-07 | Betätigungszylinder mit an ihm befestigten faltenbalg |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102016202035B3 (de) |
| WO (1) | WO2017137037A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018101409B3 (de) * | 2018-01-23 | 2019-04-04 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder mit mehreren Einzelkolben; Betätigungseinrichtung; sowie Kupplungssystem |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1500702A1 (de) * | 1966-11-26 | 1969-09-18 | Klaus Doerr | Spannvorrichtung mit selbstsichernder Zuhaltung |
| DE19981248T1 (de) * | 1998-06-09 | 2000-09-21 | Valeo | Hydraulische Betätigungsvorrichtung einer Kupplung, insbesondere für Kraftfahrzeuge |
| DE102011088280A1 (de) * | 2011-06-03 | 2012-12-06 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| WO2013143832A1 (de) | 2012-03-28 | 2013-10-03 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| DE102014208901A1 (de) | 2013-05-14 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Faltenbalg für Nehmerzylinder |
| DE102014222945A1 (de) | 2013-12-04 | 2015-06-11 | Schaeffler Technologies AG & Co. KG | Faltenbalg mit Entlüftung |
| DE102015201334A1 (de) * | 2014-02-14 | 2015-08-20 | Schaeffler Technologies AG & Co. KG | Kolben-/Zylinderbaugruppe für ein hydraulisches Ausrücksystem |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3436327A1 (de) * | 1984-10-04 | 1986-04-10 | FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt | Geberzylinder fuer hydraulische systeme |
-
2016
- 2016-02-11 DE DE102016202035.8A patent/DE102016202035B3/de not_active Expired - Fee Related
-
2017
- 2017-02-07 DE DE112017000806.9T patent/DE112017000806A5/de not_active Withdrawn
- 2017-02-07 WO PCT/DE2017/100088 patent/WO2017137037A1/de not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1500702A1 (de) * | 1966-11-26 | 1969-09-18 | Klaus Doerr | Spannvorrichtung mit selbstsichernder Zuhaltung |
| DE19981248T1 (de) * | 1998-06-09 | 2000-09-21 | Valeo | Hydraulische Betätigungsvorrichtung einer Kupplung, insbesondere für Kraftfahrzeuge |
| DE102011088280A1 (de) * | 2011-06-03 | 2012-12-06 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| WO2013143832A1 (de) | 2012-03-28 | 2013-10-03 | Schaeffler Technologies AG & Co. KG | Nehmerzylinder |
| DE102014208901A1 (de) | 2013-05-14 | 2014-11-20 | Schaeffler Technologies Gmbh & Co. Kg | Faltenbalg für Nehmerzylinder |
| DE102014222945A1 (de) | 2013-12-04 | 2015-06-11 | Schaeffler Technologies AG & Co. KG | Faltenbalg mit Entlüftung |
| DE102015201334A1 (de) * | 2014-02-14 | 2015-08-20 | Schaeffler Technologies AG & Co. KG | Kolben-/Zylinderbaugruppe für ein hydraulisches Ausrücksystem |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102016202035B3 (de) | 2017-06-14 |
| DE112017000806A5 (de) | 2018-10-18 |
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