WO2015070864A2 - Betätigungseinrichtung - Google Patents
Betätigungseinrichtung Download PDFInfo
- Publication number
- WO2015070864A2 WO2015070864A2 PCT/DE2014/200627 DE2014200627W WO2015070864A2 WO 2015070864 A2 WO2015070864 A2 WO 2015070864A2 DE 2014200627 W DE2014200627 W DE 2014200627W WO 2015070864 A2 WO2015070864 A2 WO 2015070864A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- actuating
- lever
- recess
- recesses
- actuating device
- 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
- F16D25/088—Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member the line of action of the fluid-actuated members being distinctly separate from the axis of rotation
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0604—Construction of the male part
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/068—Special features relating to lubrication
-
- 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
- F16D25/12—Details not specific to one of the before-mentioned types
- F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
-
- 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
- F16D2300/06—Lubrication details not provided for in group F16D13/74
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
Definitions
- the invention relates to an actuating device, in particular for actuating a clutch in the drive train of a motor vehicle, comprising at least one actuating cylinder which is operatively connected to a pivot lever for engaging or disengaging the clutch according to the preamble of the first claim.
- Such an actuating cylinder may for example be a slave cylinder or a master cylinder in a hydraulic release system for a friction clutch of a motor vehicle.
- the slave cylinder is here in particular in the form of a semi-hydraulic cylinder (SSC - Semi Slave Cylinder) formed and part of a hydraulic system, which also includes a master cylinder and a hydraulic line as a connection between the master and slave cylinder.
- SSC semi-hydraulic Cylinder
- the master cylinder z. B. acted upon by a pedal, so that an increased pressure is built up in the hydraulic system.
- the slave cylinder comprises a piston displaceable within a slave cylinder housing, which can be displaced by increasing the pressure by acting on the master cylinder.
- the piston or an associated with this piston rod of the slave cylinder acts on a release lever, whereby it actuates a clutch via a release bearing. It is known that the actuating force is applied to one end of the release lever, while at the opposite end or near this end a pivot point is formed. This pivot point is usually located in a stationary on the transmission housing arranged abutment of the release lever.
- an actuating system for a clutch in which, for example, such an actuating lever (release lever) is used.
- This operating the lever of an axially displaceable arranged on a release bearing serving lever has two free ends, wherein in the region of the first free end an axis is arranged, about which the lever is pivotable. In the region of the second free end, an engagement position is formed, on which an actuating element can engage, to a
- a contact surface is formed between the two ends of the lever, which occurs upon actuation of the lever with a second, formed on the release bearing, contact surface in contact and thus axially displaces the release bearing and thus the clutch off / on.
- DE 29 31 816 A1 discloses a release system for a motor vehicle, in which a release lever is provided which rotates on one side of the axis of rotation of the clutch. or is pivotally mounted and on the other side of the axis of rotation has the point of application for a clutch actuating means.
- the rotational or pivotal mounting of the release lever takes place on a mounted on the drive unit element, which consists of a pointing in the axial direction bolt with a ball head.
- Pivot for the release lever forming ball is received in a spherical cap recess of the release lever.
- a master cylinder is in operative connection with a pivotable pedal lever via an actuating rod (piston rod).
- a compound of a pedal lever with a master cylinder is shown, for example, in an operating device described in DE 196 46 846 B4 for a hydraulically controlled clutch of vehicles.
- the limited about a stationary axis of rotation pivotally mounted pedal lever is connected via an actuating or piston rod with a piston which is guided in a housing of the master cylinder slidably.
- the piston bounded with the housing a variable volume pressure chamber, which is filled by a hydraulic fluid and acted upon actuation of the pedal a slave cylinder having a clutch release device, which is connected via a pressure line to the master cylinder.
- the pedal lever performs a pivoting movement about an axis which is transverse to the longitudinal axis of the master cylinder and the piston rod.
- the piston rod of the master cylinder is in this case coupled to the pedal lever, wherein the head of the piston rod corresponds to a recess of the pedal lever.
- Particularly problematic in terms of noise education here is the use of different materials at the contact point, for example when using a steel rod made of steel rod and an existing plastic pedal lever.
- DE 66 05 053 U proposes a device for actuating motor vehicle clutches, in which a permanent lubrication of the bearing / joint is to be achieved by a connection between the bearing and the gearbox.
- the abutment formed as a ball pin is provided with an axial bore over its entire length, through which fuel oil from the transmission interior is conducted to the joint.
- the object of the present invention is therefore to propose an actuating device in which a costly and low material and labor cost constant lubrication of the bearing of the thrust bearing or the actuating rod is guaranteed and thus prevents premature wear and thus a noise reduction is achieved.
- an actuating device in particular for actuating a clutch in the drive train of a motor vehicle, comprising at least one actuating cylinder, which is in operative connection with a pivot lever for engaging or disengaging the clutch, wherein the swiveling about a transversely to the longitudinal axis of the actuating cylinder pivot axis pivoting a recess which is in contact with a spherically curved surface of an actuating rod of the actuating cylinder or an abutment, according to the invention, the surface of the actuating rod or abutment and / or the recess of the pivot lever with one or more recess (s) for receiving grease / Lubricant provided
- the actuating cylinder is a slave cylinder, which is operatively connected to the pivot lever formed by a release lever, wherein the spherically curved surface of a bearing body of the abutment corresponds to the recess of the release lever.
- a further preferred embodiment provides a master cylinder as an actuating cylinder, the actuating rod is a piston rod which is in operative connection with the pivot lever formed by a pedal lever, wherein the spherically curved surface of a head piece of the piston rod corresponds to the recess of the pedal lever.
- a plurality of recesses of the same or different dimensions over the entire surface of the bearing body of the abutment or the head piece of the piston rod are arranged distributed. But it can also be distributed over the entire recess of the release lever or the pedal lever several recesses.
- a further advantageous embodiment provides to arrange on the surface of the bearing body of the abutment or the head piece of the piston rod only a central region or only one edge region with one or more recesses. Also in the recess of the release lever or the pedal lever may preferably be provided with one or more recesses only a central area or only one edge area.
- these may be distributed regularly or irregularly on the surface of the bearing body or the head piece of the piston rod and / or in the recess of the release lever or the pedal lever.
- the recesses are formed trough-shaped and / or groove-shaped.
- the recesses may also be provided simultaneously on the surface of the bearing body or the head piece of the piston rod and in the recess of the release lever or the pedal lever.
- the recesses in the form of one or more wave-shaped slots are formed, which are arranged circumferentially on the surface of the thrust bearing or the piston rod and / or in the recess of the pivot lever.
- FIG. 1 shows a partial section of an actuating device with a support bearing on a counter-bearing release lever
- Fig. 2 is an abutment of the release lever according to the prior art in one
- FIG. 2a is a plan view of the anvil of FIG. 2,
- Fig. 3 shows a first embodiment of an abutment according to the invention in a
- FIG. 3a is a plan view of the anvil of FIG. 3,
- Fig. 4 shows a second embodiment of an abutment according to the invention in a
- FIG. 4a is a plan view of the anvil of FIG. 4,
- FIG. 5 shows a partial section of an actuating device with a pedal lever supported on an actuating rod / piston rod
- FIG. 6 shows an enlarged detail of FIG. 5 with an embodiment according to the invention of the head piece of the piston rod
- FIG. 6a is a perspective view of the head piece of Fig. 6,
- FIG. 7 is an enlarged detail of FIG. 5 with a further inventive
- FIG. 7a is a perspective view of the head piece of the piston rod according to FIG. 7.
- actuating device for actuating a clutch of a motor vehicle
- the actuating device comprises a slave cylinder designed in the form of a semi-hydraulic cylinder (SSC - Semi Slave Cylinder), a master cylinder (not shown here) and a hydraulic line (not shown) as a connection between master cylinder and slave cylinder.
- SSC semi-hydraulic cylinder
- master cylinder not shown here
- hydraulic line not shown
- actuating cylinder 1 has a piston rod 2 (or a piston), which is displaceable in a conventional manner along a longitudinal axis X and formed with a release lever designed as a pivot lever 3 via an actuating portion 4 for Purpose of the disengagement / engagement of the clutch is in operative connection.
- An abutment 5 having bearing is fixed to a transmission housing (not shown) and serves the abutment of the release lever 3 in its pivotal movement about a transversely to the longitudinal axis X of the slave cylinder 1 aligned axis (not shown here).
- the anvil 5 has a bolt-shaped bearing body 6 with a spherically curved, spherical segment-shaped, surface 7, which is in contact with a complementarily shaped, spherical cap-shaped recess 8 of the release lever 3.
- FIG. 2 shows the counter bearing 5 of the release lever 3 used according to the prior art in a front view
- FIG. 2 a shows a plan view of the counter bearing 5. anschaubit.
- the corresponding surface with the recess 8 of the release lever 3 7 of the bearing body 6 is in this case flat / smooth.
- a first embodiment of the thrust bearing 5 according to the invention is shown in a front view.
- a plurality of recesses 9 are provided which may be arranged distributed regularly or irregularly over the circumference. These recesses 9 are used to absorb grease / lubricant and so as a grease reservoir lubrication over life at the intended for abutment of the release lever 3 bearing to realize.
- the surface 7 may be designed in the manner of a golf ball and have trough-shaped recesses 9.
- a groove-shaped configuration of the recesses 9 is possible, which is not shown separately here.
- both the number and the size of the recesses 9 can vary.
- FIG. 4 shows a further embodiment variant of the counter bearing 5 according to the invention in a front view
- FIG. 4 a shows a plan view of the counter bearing 5 according to FIG. 4.
- a relatively small area of the recess 7 of the release lever 3 in contact surface 7 of the bearing body 6 of the thrust bearing 5 is provided with a grease reservoir, whereby a lower surface pressure on the thrust bearing 5 can be achieved.
- a further partial section of an actuating device for actuating the clutch of a motor vehicle is shown.
- the invention relates to a running as a master cylinder actuating cylinder 1, which formed with a pedal lever Swivel lever 3 is in operative connection.
- a loading of the slave cylinder (not shown here).
- the pedal lever 3 executes a limited pivoting movement about a transversely to the longitudinal axis X of the master cylinder 1 aligned axis, which is indicated here by a pivot point A.
- a head piece 1 1 has a spherically curved surface 7, which is in contact with the at least approximately complementary recess 8 of the pedal lever 3.
- the head piece 1 1 can be made in one piece with the piston rod 10. But it can also be a two-part design, in which the head piece 1 1 is attached in the form of a separate head or pins on the piston rod 10 may be used.
- Fig. 6 shows an embodiment of the head piece 1 1 of the piston rod 10 as a detail of FIG. 5 is shown.
- the spherical segment-shaped surface 7 of the existing example of steel or plastic head piece 1 1 of the piston rod 10 recesses 9 are provided, the here in two rows revolving are arranged on the head piece 1 1. They serve analogously to the recesses 9 described in the exemplary embodiments described above to absorb grease / lubricant and thus to ensure lubrication over the life at the point of contact of the recess 8 of the pedal lever 3 and the head piece 11 of the piston rod 10 as fat reservoirs.
- the arrangement and the execution of the recesses 9 may be different.
- the surface 7 may also be designed in the manner of a golf ball and have trough-shaped recesses 9.
- the recesses 9 may be arranged regularly or irregularly distributed over the circumference.
- the recesses 9 arranged in two rows on the circumference of the head piece 11 of the piston rod 10 in FIGS. 6 and 6a have different dimensions and shapes, the recesses 9 of the row facing a central region of the head piece 11 being more of a round shape with smaller dimensions Dimensions and the recesses 9 of the other row rather have an elliptical shape with larger dimensions.
- Fig. 7 shows a further embodiment of the piston rod 10 with the head piece 1 1 as a detail of FIG. 5, while Fig. 7a is a three-dimensional view of the head piece 1 1 of FIG. 7.
- the recess 9 is provided in the form of a wave-shaped slot, which runs circumferentially on the head piece 1 1 of the piston rod.
- Rod 10 is attached.
- a plurality of recesses 9 may be provided in the form of small wave-shaped slots on the surface 7.
- an arrangement of the recesses 9 on the surface 7 bearing body 6 of the thrust bearing 5 and on the surface 7 of the head piece 1 1 of the piston rod 10 is provided.
- one or more recesses 9 / wave-shaped slots can also be arranged on the recess 8, which is complementary to the surface 7, of the respective associated pivoting lever 3, which are not shown separately here.
- the recesses 9 are preferably provided in a bearing body 6 and the head piece 1 1 facing lateral surface of the recess 8. It is also a simultaneous arrangement of recesses 9 both on the surface 7 of the bearing body 6 / head piece 1 1 and in the recess 8 of the release lever
- variants of the design and arrangement of the recesses 9 described here in the respective embodiment can be used on the surface 7 of the abutment 5 or in the recess 8 of the release lever 3 also in the combination of piston rod 10 and pedal lever 3.
- variants of the design and arrangement of the recesses 9 described here in the respective embodiment can be used on the surface 7 of the piston rod 10 or in the recess 8 of the pedal lever 3 also in the combination of an abutment 5 and release lever 3.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112014005174.8T DE112014005174A5 (de) | 2013-11-13 | 2014-11-11 | Betätigungseinrichtung |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013223042.7 | 2013-11-13 | ||
| DE201310223042 DE102013223042A1 (de) | 2013-11-13 | 2013-11-13 | Ausrückvorrichtung |
| DE102014204732.3 | 2014-03-14 | ||
| DE102014204732 | 2014-03-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2015070864A2 true WO2015070864A2 (de) | 2015-05-21 |
| WO2015070864A3 WO2015070864A3 (de) | 2016-03-10 |
Family
ID=52133754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2014/200627 Ceased WO2015070864A2 (de) | 2013-11-13 | 2014-11-11 | Betätigungseinrichtung |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112014005174A5 (de) |
| WO (1) | WO2015070864A2 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795092A (en) * | 1996-12-06 | 1998-08-18 | The Pullman Company | Internally sealed pivotal joint assembly |
| DE29722507U1 (de) * | 1997-12-20 | 1999-04-22 | Sachsenring Automobiltechnik AG, 08058 Zwickau | Kugelschale für ein Kugelgelenk und Kugelgelenk mit einer solchen Kugelschale |
| DE19937655B4 (de) * | 1999-08-13 | 2005-06-16 | ZF Lemförder Metallwaren AG | Kugelgelenk |
| DE102006050956A1 (de) * | 2005-11-19 | 2007-05-24 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Ausrückvorrichtung insbesondere zur Betätigung einer Fahrzeugkupplung |
| US20110243650A1 (en) * | 2007-11-08 | 2011-10-06 | Linares Medical Devices, Llc | Joint replacement assembly with surface lubricant distribution configuration established between ball and receiver squeaking or acoustic emissions |
-
2014
- 2014-11-11 DE DE112014005174.8T patent/DE112014005174A5/de not_active Withdrawn
- 2014-11-11 WO PCT/DE2014/200627 patent/WO2015070864A2/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014005174A5 (de) | 2016-07-21 |
| WO2015070864A3 (de) | 2016-03-10 |
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