WO2012163315A1 - Cylindre récepteur - Google Patents

Cylindre récepteur Download PDF

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Publication number
WO2012163315A1
WO2012163315A1 PCT/DE2012/000225 DE2012000225W WO2012163315A1 WO 2012163315 A1 WO2012163315 A1 WO 2012163315A1 DE 2012000225 W DE2012000225 W DE 2012000225W WO 2012163315 A1 WO2012163315 A1 WO 2012163315A1
Authority
WO
WIPO (PCT)
Prior art keywords
slave cylinder
release bearing
sleeve
cylinder housing
pressure chamber
Prior art date
Application number
PCT/DE2012/000225
Other languages
German (de)
English (en)
Inventor
Richard Dubas
Saravanan LAKSHMINARAYANAN
Original Assignee
Schaeffler Technologies AG & Co. KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2012163315A1 publication Critical patent/WO2012163315A1/fr

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
    • 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 a slave cylinder, in particular for a hydraulic release system of a friction clutch of a motor vehicle, with a slave cylinder housing which is arranged concentrically to a transmission input shaft.
  • Such a slave cylinder is also referred to as CSC (Concentric Slave Cylinder), and is known per se, for example from DE 11 2005 000 619 T5.
  • the slave cylinder is provided with a bellows to protect against contamination.
  • the bellows is attached to the slave cylinder housing.
  • the release bearing loosely abuts the upper end of the bellows. Under certain conditions, it is possible that dirt, especially fine dust, can penetrate into the slave cylinder and damage it.
  • the invention has for its object to provide a slave cylinder having an improved seal against penetrating contaminants.
  • a slave cylinder in particular for a hydraulic release system of a friction clutch of a motor vehicle having a slave cylinder housing having a longitudinal bore for receiving a transmission input shaft and a concentric to longitudinal bore arranged pressure chamber forms.
  • an annular piston is guided axially displaceable.
  • the annular piston actuates at its end remote from the pressure chamber there arranged a release bearing.
  • the release bearing is preloaded against the slave cylinder housing via a preload spring.
  • a sleeve is arranged between the slave cylinder housing and the release bearing.
  • the cuff is sealingly attached to the release bearing and the slave cylinder housing.
  • a preferred embodiment of the slave cylinder is characterized in that between the collar and the release bearing and / or between the collar and the slave cylinder housing, a fastening ring is attached. Preferably, between the
  • a preferred embodiment of the slave cylinder is characterized in that an upper attachment ring is attached to the collar and to the release bearing.
  • the upper mounting ring connects the upper end of the collar to the release bearing.
  • a further preferred embodiment of the slave cylinder is characterized in that a lower attachment ring is attached to the collar and the slave cylinder housing.
  • the lower mounting ring connects the lower end of the collar to the slave cylinder housing.
  • the lower mounting ring and / or the upper mounting ring are fastened latched.
  • the lower fastening ring and / or the upper fastening ring is latched via, for example, latchable tabs with the sleeve and the release bearing or the slave cylinder housing.
  • a preferred embodiment of the slave cylinder is characterized in that the sleeve is made of rubber.
  • the sleeve is made of a material which is flexible in the axial direction of the slave cylinder.
  • a further preferred embodiment of the slave cylinder is characterized in that the sleeve can be compressed in the axial direction.
  • the sleeve is formed as a compressible in the axial direction bellows.
  • the cuff is preferably divided into several segments. The segments are connected to each other via film hinges and movable to each other.
  • the top and bottom mounting rings are mounted on the cuff.
  • the preassembled sleeve is connected to the slave cylinder housing latched.
  • the annular piston and preload spring are inserted into the slave cylinder housing.
  • the release bearing is set.
  • the release bearing is connected to the upper fastening ring on the sleeve resiliently.
  • the fastening device of the sleeve is in this case designed such that in addition a simple assembly of the slave cylinder is possible.
  • FIG. 2 shows a three-dimensional view of an embodiment of the slave cylinder
  • Figure 3 shows an embodiment of the cuff with upper and lower ones
  • FIG. 4 shows an embodiment of the lower fastening ring
  • FIG. 5 shows the assembly of the sleeve according to FIG. 3 to a slave cylinder housing
  • FIG. 6 shows the latching of the sleeve with the slave cylinder housing in a three-dimensional view and in detail
  • FIG. 7 shows the assembly of the annular piston on the slave cylinder
  • Figure 9 is a sectional view of the attached release bearing before locking with the
  • FIG. 11 shows a three-dimensional view of the upper fastening ring
  • Figure 12 is a sectional view of the latched release bearing with the cuff.
  • FIGS. 1a and 1b are sectional views of an embodiment of the slave cylinder 1 according to the invention in an overview view and shown in detail.
  • the slave cylinder 1 in FIG. 1 a comprises a slave cylinder housing 2, which in the illustrated embodiment has a cylinder sleeve 24.
  • the cylinder sleeve 24 forms or surrounds a longitudinal bore 21, which serves to receive a transmission input shaft, not shown.
  • Concentric with the longitudinal bore 21, the slave cylinder housing 2 has a pressure chamber 22.
  • In the pressure chamber 22 of the annular piston 3 is arranged via a seal 32 in the axial direction of the slave cylinder 1 movable. At its end 31 ausschlagerseiti-, or at its end facing away from the pressure chamber 22, is on the annular piston
  • the release bearing 4 is biased by a preload spring 5 relative to the slave cylinder housing 2.
  • the preload spring 5 is mounted on the side of the slave cylinder housing 2 in a lower spring bearing 23.
  • the preload spring 5 is mounted in an upper spring bearing 41.
  • a sleeve 6 is arranged in the form of a bellows in the region between the slave cylinder housing 2 and the release bearing 4.
  • the sleeve 6 is connected via a lower fastening ring 7 with the slave cylinder housing 2 by means of a latching device.
  • Via an upper fastening ring 8 the sleeve 6 is connected to the release bearing 4 by means of a latching device.
  • FIG. 2 shows a three-dimensional view of an embodiment of the slave cylinder 1.
  • the slave cylinder 1 comprises a slave cylinder housing 2 on which a release collar 4 is arranged at a distance from one another via a sleeve 6.
  • the slave cylinder 1 has in the axial direction of a longitudinal bore 21 which serves to receive a transmission input shaft, not shown.
  • the slave cylinder 1 has in the illustrated embodiment on its rear side a extending in the radial direction pipe 25. Concentric with the slave cylinder 1, further pipelines 26 are arranged laterally on the slave cylinder housing 2 in the illustrated embodiment.
  • the lower mounting ring 7 laterally arranged Abstützlaschen 72, 72 ', which rest on the pipes 26. Via the pipes 25 and 26, a pressurized fluid in the pressure chamber of the slave cylinder 1 can be introduced.
  • FIG. 3 shows an embodiment of the sleeve 6 with a top ring 8 and a bottom ring 7.
  • the lower mounting ring 7 is arranged.
  • the lower fastening ring 7 is shown in detail in FIG.
  • the upper fastening ring 8 is arranged.
  • the upper fastening ring 18 are shown in FIG. 11.
  • FIG. 4 shows an embodiment of the lower fastening ring 7 in a three-dimensional view.
  • the lower fastening ring 7 has a plurality of tabs 71 arranged in the circumferential direction.
  • the tabs 71 are designed such that they can connect with correspondingly formed projections of the slave cylinder housing 2 latched.
  • the lower mounting ring 7 laterally arranged Abstützlaschen 72, 72 'on.
  • the support tabs 72, 72 'each have a bore which are mechanically connected to the arranged on the slave cylinder housing 2 side pipes 26.
  • FIG. 5 shows the assembly of the sleeve 6 shown in FIG. 3 to a slave cylinder housing 2.
  • the slave cylinder housing 2 has a correspondingly designed mounting area for this purpose.
  • FIG. 6 shows the latching of the sleeve 6 with the slave cylinder housing 2 in a three-dimensional view and in detail.
  • the lower fastening ring 7 is fastened via the tabs 71 to correspondingly formed projections 27 of the slave cylinder housing 2. In the detail on the right side can be seen how the tabs 71 in this case engage the projections 27 of the slave cylinder housing 2.
  • the sleeve 6 is sealingly attached to the slave cylinder housing 2.
  • FIG. 7 shows the assembly of the annular piston 3 on the slave cylinder 1.
  • the annular piston 3 surrounds the cylinder sleeve 24 and is introduced into the pressure chamber 22.
  • the pressure chamber 22 is formed by the slave cylinder housing 2 and the cylinder sleeve 24.
  • FIG. 9 are sectional views of the attached release bearing 4 prior to locking with the sleeve 6 in an overview view and shown in detail.
  • the illustration in FIG. 9 shows the state of the slave cylinder 1 before the release bearing 4 is connected to the release bearing end 31 of the annular piston 3 and the upper attachment ring 8 of the sleeve 6.
  • the release bearing on a receiving device 43 In which the release bearing side end 31 of the annular piston can be locked locked.
  • FIG. 10 shows a sectional illustration of the release bearing 4 with the upper fastening ring 8 with attached spacer 42. So that during assembly of the release bearing 4, a sleeve 8 enough clearance between the upper mounting ring 8 remains the release bearing 4, the upper mounting ring 8 has a spacer 42 formed as a collar. By the spacer 42, the movable part of the release bearing 4 is not directly on the upper mounting ring 8.
  • FIG. 11 shows a three-dimensional view of the upper fastening ring 8.
  • the upper fastening ring 8 has a plurality of radially outwardly directed outer flaps 81 in the circumferential direction.
  • the outer plates 81 are used for locking the upper mounting ring 8 with the sleeve 6.
  • the upper mounting ring further comprises a plurality of radially inwardly directed inner tabs 82.
  • the inner plates 82 are used for locking the upper mounting ring 8 with the upper spring bearing 41 of the release bearing. 4
  • FIG. 12 shows a sectional illustration of the latched release bearing 4 with the sleeve 6.
  • FIGS. 13a to 13c show the individual steps of locking the release bearing 4 with the upper fastening ring 8 of the sleeve 6.
  • the sleeve 6 is not shown here.
  • the upper spring bearing 41 of the release bearing 4 is in this case pressed down so far that the inner plates 82 of the upper mounting ring 8 engage in a groove 411 of the upper spring bearing 41.
  • the inner plates 82 through the lower portion of the upper spring bearing 41 is slightly bent radially during the assembly process, the inner plates 82, as soon as the groove 411 of the upper spring bearing 41 is at the same height, resiliently engage in this and form a sealing connection.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

Cylindre récepteur, notamment pour un système de débrayage hydraulique d'un embrayage à friction d'un véhicule à moteur, ce cylindre comprenant un carter de cylindre récepteur qui présente un alésage longitudinal pour recevoir un arbre d'entrée de boîte et qui forme une chambre de pression concentrique à l'alésage longitudinal dans laquelle un piston annulaire est guidé coulissant dans l'axe. Le piston annulaire actionne une butée de débrayage disposée à son extrémité opposée à la chambre de dépression. La butée de débrayage est soumise à une précontrainte relativement au carter de cylindre récepteur par un ressort de précontrainte (5). Entre le carter de cylindre récepteur et la butée de débrayage est montée une manchette qui est fixée de manière étanche sur la butée de débrayage et le carter de cylindre récepteur.
PCT/DE2012/000225 2011-06-03 2012-03-08 Cylindre récepteur WO2012163315A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011103456 2011-06-03
DE102011103456.4 2011-06-03

Publications (1)

Publication Number Publication Date
WO2012163315A1 true WO2012163315A1 (fr) 2012-12-06

Family

ID=45936598

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/000225 WO2012163315A1 (fr) 2011-06-03 2012-03-08 Cylindre récepteur

Country Status (2)

Country Link
DE (1) DE102011088280A1 (fr)
WO (1) WO2012163315A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029193A1 (fr) * 2018-08-09 2020-02-13 舍弗勒技术股份两合公司 Dispositif de retenue d'élément d'étanchéité et cylindre asservi concentrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016202035B3 (de) * 2016-02-11 2017-06-14 Schaeffler Technologies AG & Co. KG Betätigungszylinder mit an ihm befestigten Faltenbalg

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599807A (en) * 1943-12-24 1948-03-22 Pesco Products Co Improvements in or relating to arrangements for operating clutches
DE19635101A1 (de) * 1995-09-14 1997-03-20 Valeo Ausrücklager mit hydraulischer Betätigung für eine Membranfederkupplung für Kraftfahrzeuge
EP0770789A1 (fr) * 1995-10-24 1997-05-02 Skf France Dispositif hydraulique de manoeuvre d'embrayage
EP0919741A1 (fr) * 1997-11-27 1999-06-02 Kongsberg Automotive ASA Dispositif d'engagement et de désengagement d'un embrayage
DE112005000619T5 (de) 2004-04-22 2008-08-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Konzentrische Nehmerzylinder
DE102009030974A1 (de) * 2008-07-14 2010-01-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Doppelkupplung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599807A (en) * 1943-12-24 1948-03-22 Pesco Products Co Improvements in or relating to arrangements for operating clutches
DE19635101A1 (de) * 1995-09-14 1997-03-20 Valeo Ausrücklager mit hydraulischer Betätigung für eine Membranfederkupplung für Kraftfahrzeuge
EP0770789A1 (fr) * 1995-10-24 1997-05-02 Skf France Dispositif hydraulique de manoeuvre d'embrayage
EP0919741A1 (fr) * 1997-11-27 1999-06-02 Kongsberg Automotive ASA Dispositif d'engagement et de désengagement d'un embrayage
DE112005000619T5 (de) 2004-04-22 2008-08-28 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Konzentrische Nehmerzylinder
DE102009030974A1 (de) * 2008-07-14 2010-01-21 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Doppelkupplung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020029193A1 (fr) * 2018-08-09 2020-02-13 舍弗勒技术股份两合公司 Dispositif de retenue d'élément d'étanchéité et cylindre asservi concentrique

Also Published As

Publication number Publication date
DE102011088280A1 (de) 2012-12-06

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