CN106104049B - Release system for a clutch actuating device - Google Patents
Release system for a clutch actuating device Download PDFInfo
- Publication number
- CN106104049B CN106104049B CN201580012165.3A CN201580012165A CN106104049B CN 106104049 B CN106104049 B CN 106104049B CN 201580012165 A CN201580012165 A CN 201580012165A CN 106104049 B CN106104049 B CN 106104049B
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing element
- separation system
- sealing
- guide sleeve
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 60
- 238000000926 separation method Methods 0.000 claims description 21
- 238000005452 bending Methods 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 9
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- 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
-
- 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
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A release system for a clutch actuating device, preferably for a slave cylinder in a motor vehicle, comprises a cylinder housing (12) which forms an annular pressure chamber (13) in which an axially movable piston (14) is mounted, said piston being operatively connected to the clutch via a release bearing (16), wherein the piston is slidably movable on a guide sleeve (18). A reliable sliding of the piston on the guide sleeve is ensured in a decoupling system in which a sealing element (19, 21) is arranged on the piston, which sealing element bears against the guide sleeve (18) during the movement of the piston.
Description
Technical field
The present invention relates to a kind of separation systems, are used for clutch operating device, the slave cylinder being preferred in motor vehicle, packet
Cylinder housing is included, the cylinder housing forms cricoid pressure chamber, and axially movable piston support is in the pressure chamber, the work
Plug is in effect connection by release bearing and clutch, wherein the piston can slidably move on guide sleeve.
Background technique
In clutch operating device, preferably hydraulic clutch operating device, clutch is operated by hydraulic fluid,
The liquid is arranged in the pressure line between the active cylinder operated and slave cylinder.In operating active cylinder, hydraulic fluid
It is forced into pressure line from the inside of active cylinder, and is forced into slave cylinder from the pressure line, the slave cylinder packet
Piston is enclosed, the piston is moved by hydraulic fluid, and therefore operates clutch.Go out as shown in Figure 11, slave cylinder 9
It is made of cylinder housing 12, the cylinder housing struts pressure chamber not shown further.Piston 14 is axially movable supported on pressure
Power chamber interior.The hydraulic fluid in pressure chamber by being flowed into slave cylinder 9, piston 14 press to release bearing 16 with its end side,
The release bearing generates effect to clutch mechanism formula and operates the clutch.During exercise, piston 14 is along guiding
Casing 18 slides.Lubricant is provided between piston 14 and guide sleeve 18.Under the operating status of slave cylinder 9, foul can
It can enter between guide sleeve 18 and piston 14, thus harm the service ability of slave cylinder 9, this can lead to the function of slave cylinder 9
Failure.
Summary of the invention
Therefore, the present invention is based on following tasks: a kind of separation system for clutch operating device is proposed, in the separation
In system, the service life of separation system is enhanced, and is reduced and caused since foul enters between piston and guide sleeve
Functional fault appearance a possibility that.
According to the present invention, thus which solves: sealing element is arranged near release bearing on piston, described close
Envelope element sticks on guide sleeve in each position of piston, wherein sealing element is arranged adjacent to release bearing.This has
Following advantages: during the whole service of separation system, protection is not contaminated in the lubricant between guide sleeve and piston.
Equally prohibit the spilling of lubricant.This improves the service lifes of separation system, because reliably preventing due to foul
Caused functional fault.
Advantageously, sealing element is arranged on piston, longitudinal side in face of guide sleeve.By this configuration, can make close
Envelope element is clamped between piston and guide sleeve well, without other fixing element.
In one configuration, sealing element is embedded into the cricoid groove of piston, and prominent towards guide sleeve direction
The groove.Since sealing element is embedded in cricoid groove, it is fixed on the sealing element on piston well.Due to sealing member
Part protrudes groove, it is ensured that, even if piston is slided along inner wall, keep sealing element always with guide sleeve in contacting.
In a kind of particularly simple embodiment, sealing element is configured to O-ring.
In a kind of modification, the sealing element arranged on end side in piston, away from pressure chamber has at least one lip,
The lip is towards guide sleeve.The reliable sealing of the room between piston and guide sleeve is not only implemented only in by the lip, and
And the mechanical tolerance when piston is moved along guide sleeve is compensated simultaneously.
Advantageously, sealing element is supported between the end side of piston and the retaining ring of release bearing, preferably in the holding
It is snugly supported on ring.Additional fixation is eliminated by this clamping of the sealing element between the end side and retaining ring of piston
Element, this reduces the manufacturing cost of separation system.
Advantageously, sealing element have support element, the support element almost flatly stick on piston end side and
Between the retaining ring of release bearing, and it is cooperated in sealing lip.Here, support element is used as the holder of sealing lip, and
The structural specified criteria with separation system matches particularly simplely.
In a kind of modification, support element, the end that is cooperated in sealing lip there is bending section, the bending section is double
Side is surrounded by lip body.Not only realize that the structural specified criteria with separation system is matched by this bending section, Er Qietong
When be responsible for: in the various movements of piston, sealing lip is sticked on guide sleeve, also, here, protection in piston and guide sleeve
Room between pipe is not contaminated, and prevents lubricant from overflowing.
In a kind of improvement project, the lip body of sealing lip at least almost completely covers bracket on the side for be associated with retaining ring
Element.Due to this arrangement, sealing lip, cover the part of support element completely and be also clamped between retaining ring and piston, because
This, sealing lip can occupy unmodifiable position.
In one embodiment, piston and/or sealing element are made of plastics.The use of plastics leads to separation system
Weight reduces.
Detailed description of the invention
The present invention allows numerous embodiments.One of them is explained in detail according to figure shown in the accompanying drawings.
Attached drawing is shown:
Fig. 1: the schematical structure of hydraulically operated clutch operating device,
Fig. 2: according to the embodiment of the slave cylinder of Fig. 1,
Fig. 3: the first embodiment of slave cylinder according to the present invention,
Fig. 4: across the section according to the piston of Fig. 3,
Fig. 5: the second embodiment of slave cylinder according to the present invention,
Fig. 6: according to the sealing element of Fig. 5,
Fig. 7: having the guide sleeve of the sealing element according to Fig. 5,
Fig. 8: the 3rd embodiment of slave cylinder according to the present invention,
Fig. 9: according to the sealing element of Fig. 8,
Figure 10: having the guide sleeve of the sealing element according to Fig. 8,
Figure 11: slave cylinder according to prior art.
Identical feature is indicated with identical appended drawing reference.
Specific embodiment
With from hydraulic hydrostatic clutch actuator 3 (HCA) that is known in the art, schematically showing in Fig. 1
For schematically show the structure of hydraulically operated clutch operating device 1.Hydraulically operated clutch operating dress
Setting 1 includes controller 2 on master end 10, which manipulates clutch actuator 3.In 3 He of clutch actuator of hydrostatic
It include the body of the hydraulic fluid 6 in active cylinder 5 when piston 4 in active cylinder 5 changes position to the right along actuator path
Product changes, and pressure p is thus formed in active cylinder 5, and the pressure is grasped by pressure line 7 to clutch by hydraulic fluid 6
The slave end 8 for making device 1 transmits.Pressure line 7 matches in terms of its length and shape with the installation space situation of motor vehicle.
In addition, pressure line 7 is directed on slave cylinder 9.On slave end 8, the pressure p of hydraulic fluid 6 causes stroke in slave cylinder 9
Change, the path, which changes, to be transmitted on clutch 11, to operate clutch.
Fig. 2 shows slave cylinder 9, as it used in the clutch operating device 1.Slave cylinder 9 has cylinder housing 12,
The cylinder housing struts pressure chamber 13, and in operating active cylinder 5, hydraulic fluid 6 is flowed into the pressure chamber.Pressure chamber 13 is annularly
It constructs and is directed to 18 limit of casing inside cylinder housing 12.Piston 14 is axially movable supported on inside pressure chamber 13,
The piston is equipped with sealing element 15 on the side in face of pressure chamber 13.On piston 14, opposite with pressure chamber 12 side, the work
Plug acts on release bearing 16.The release bearing 16 is made of inner ring 16.1, outer ring 16.2 and rolling element 16.3.By holding
The inner ring 16.1 of release bearing 16 is held in its position by ring 17.For axial movement of the supporting piston 14 in pressure chamber 13,
Lubricant not shown further is introduced between guide sleeve 18 and piston 14.
In order to protect the lubricant between guide sleeve 18 and piston 14 not contaminated, and prevent lubricant from overflowing,
In the first embodiment gone out shown in fig. 3, neighbouring release bearing 16 arranges other sealing element 19.The sealing element 19 exists
Piston 14, be supported in the groove 20 of piston 14 on the side of guide sleeve 18.Preferably, sealing element 19 is configured to O
Shape ring and surround cylindrical guide sleeve 18.As shown in Figure 4, O-ring 19 is embedded in particularly simplely by plastics system
At piston 14 groove 20 in.The sealing element 19 for being configured to O-ring is prominent more than the groove 20 of piston 13, and in piston
It is sticked on guide sleeve 18 in 14 each position.Here, the geometry of groove 20 and O-ring 19 so selects: so that
In 13 internal motion of pressure chamber, the room 22 between guide sleeve 18 and piston 14 is completely enclosed piston 14, the room with
Lubricant filling not shown further.
In second embodiment out shown in fig. 5, sealing element 21 is arranged on the end side of piston 14, the end side surface
To retaining ring 17.Here, sealing element 21 almost covers entire end side and including sealing lip 21.1, the sealing lip is fastened on
On support body 21.2.Support body 21.2 flatly lies on the end side of piston 14 and presss from both sides between piston 14 and retaining ring 17
Tightly.The free end 21.3 of support body 21.2 is bent and is cooperated in lip body 21.4.Lip body 21.1 is radially disposed
On piston 14 and contact guide sleeve 18, wherein the room 22 between guide sleeve 18 and piston 14 is sealed.Such cloth
Setting prevents foul from entering in room 22, as preventing lubricant from overflowing.As learnt from Fig. 6 and 7, sealing element 21 is annularly constructed
And surround guide sleeve 18.
Another embodiment of slave cylinder 9 is shown in figs. 8 and 9, in this embodiment, sealing element 21 is in face of keeping
It is covered completely by lip body 21.4 on the side of ring 17.Here, sealing element 21 also annularly constructs.Such as obtained from Figure 10, it is ensured that into
The function and at the same time ensure of row sealing prevents lubricant from overflowing on entire moving region A in pressure chamber 13 in piston 14.
List of reference signs
1 hydraulically operated clutch operating device
2 controllers
The clutch actuator of 3 hydrostatics
4 pistons
5 active cylinders
6 hydraulic fluids
7 pressure lines
8 slave ends
9 slave cylinders
10 master ends
11 clutches
12 cylinder housings
13 pressure chambers
14 pistons
15 sealing elements
16 release bearings
16.1 inner ring
16.2 outer rings
16.3 rolling elements
17 retaining rings
18 guide sleeves
19 sealing elements
20 grooves
21 sealing elements
21.1 sealing lips
21.2 support bodies
The end of 21.3 support bodies
21.4 lip body
Room 22
Claims (9)
1. separation system is used for clutch operating device, including cylinder housing (12), the cylinder housing form cricoid pressure chamber
(13), the piston (14) being axially movable is supported in the pressure chamber, and the piston passes through release bearing (16) and clutch
(11) in effect connection, wherein the piston (14) can slidably move on guide sleeve (18), which is characterized in that
Sealing element (19,21) is arranged on the piston (14), and the sealing element pastes in each position of the piston (14)
It leans against on the guide sleeve (18), wherein the sealing element (19,21) neighbouring the release bearing (16) is arranged, is arranged
Sealing element (21) on end sides in the piston (14), away from the pressure chamber (13) has at least one sealing lip
(21.1), the sealing lip is supported on the end of the piston (14) towards the guide sleeve (18), the sealing element (21)
Between side and the retaining ring (17) of the release bearing (16).
2. separation system according to claim 1, which is characterized in that the separation system is for the slave cylinder in motor vehicle.
3. separation system according to claim 1, which is characterized in that the sealing element (21) is pasted in the retaining ring
It is supported by ground.
4. separation system according to any one of claim 1 to 3, which is characterized in that the sealing element (21) includes
Support element (21.2), the support element almost flatly stick on the piston (14) end side and the release bearing
(16) it between retaining ring (17), and is cooperated in the sealing lip (21.1).
5. separation system according to claim 4, which is characterized in that the support element (21.2), be cooperated to it is described
End (21.3) in sealing lip (21.1) has bending section, and the bending section is surrounded in two sides by lip body (21.4).
6. separation system according to claim 4, which is characterized in that the lip body (21.4) of the sealing lip (21.1) is at least
The support element (21.2) are almost entirely covered on the side in face of the retaining ring (17).
7. separation system according to claim 5, which is characterized in that the lip body (21.4) of the sealing lip (21.1) is at least
The support element (21.2) are almost entirely covered on the side in face of the retaining ring (17).
8. according to claim 1 to separation system described in any one of 3 or 5 to 7, which is characterized in that the piston (14) and/
Or the sealing element (19,21) is made of plastics.
9. separation system according to claim 4, which is characterized in that the piston (14) and/or the sealing element
(19,21) are made of plastics.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014204147.3 | 2014-03-06 | ||
| DE102014204147 | 2014-03-06 | ||
| PCT/DE2015/200089 WO2015131895A1 (en) | 2014-03-06 | 2015-02-20 | Disengaging system for a clutch-actuating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106104049A CN106104049A (en) | 2016-11-09 |
| CN106104049B true CN106104049B (en) | 2018-12-25 |
Family
ID=52774094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580012165.3A Active CN106104049B (en) | 2014-03-06 | 2015-02-20 | Release system for a clutch actuating device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106104049B (en) |
| DE (1) | DE112015001126A5 (en) |
| WO (1) | WO2015131895A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016207088A1 (en) | 2016-04-26 | 2017-10-26 | Schaeffler Technologies AG & Co. KG | Slave cylinder for a clutch actuation unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3427791A1 (en) * | 1984-07-27 | 1986-01-30 | Fichtel & Sachs Ag, 8720 Schweinfurt | Hydraulically operable clutch release |
| WO1998027351A1 (en) * | 1996-12-19 | 1998-06-25 | Volkswagen Aktiengesellschaft | Friction clutch |
| CN102803772A (en) * | 2010-03-15 | 2012-11-28 | 舍弗勒技术股份两合公司 | Driven cylinder |
| CN202867628U (en) * | 2012-10-15 | 2013-04-10 | 舍弗勒投资(中国)有限公司 | Hydraulic driven cylinder |
-
2015
- 2015-02-20 CN CN201580012165.3A patent/CN106104049B/en active Active
- 2015-02-20 DE DE112015001126.9T patent/DE112015001126A5/en active Pending
- 2015-02-20 WO PCT/DE2015/200089 patent/WO2015131895A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3427791A1 (en) * | 1984-07-27 | 1986-01-30 | Fichtel & Sachs Ag, 8720 Schweinfurt | Hydraulically operable clutch release |
| WO1998027351A1 (en) * | 1996-12-19 | 1998-06-25 | Volkswagen Aktiengesellschaft | Friction clutch |
| CN102803772A (en) * | 2010-03-15 | 2012-11-28 | 舍弗勒技术股份两合公司 | Driven cylinder |
| CN202867628U (en) * | 2012-10-15 | 2013-04-10 | 舍弗勒投资(中国)有限公司 | Hydraulic driven cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015001126A5 (en) | 2016-12-15 |
| CN106104049A (en) | 2016-11-09 |
| WO2015131895A1 (en) | 2015-09-11 |
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| GR01 | Patent grant |