CN105202061B - Clutch slave cylinder and clutch release system - Google Patents
Clutch slave cylinder and clutch release system Download PDFInfo
- Publication number
- CN105202061B CN105202061B CN201410279559.2A CN201410279559A CN105202061B CN 105202061 B CN105202061 B CN 105202061B CN 201410279559 A CN201410279559 A CN 201410279559A CN 105202061 B CN105202061 B CN 105202061B
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- China
- Prior art keywords
- piston
- rib
- cylinder body
- spring
- head
- 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.)
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Links
- 230000004323 axial length Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004904 shortening 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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A clutch slave cylinder, clutch release system, wherein the clutch slave cylinder includes: the piston structure is arranged in the cylinder body, the piston rod is connected with the first end of the piston structure, the spring is arranged in the cylinder body, and the second end of the piston structure is inserted into the spring; the piston structure includes: a connecting member having a head portion and a connecting pin extending from the head portion, the head portion and the connecting pin being arranged in a direction away from the piston rod; the piston is positioned on the other side of the head part relative to the piston rod, a pin hole corresponding to the connecting pin is formed in the piston, and the connecting pin is fixedly arranged in the pin hole; one end of the piston is inserted in the spring. The piston is used as the spring holder simultaneously, has saved the setting of spring holder, satisfies under the unchangeable prerequisite of piston stroke, can make piston structure compare in prior art piston structure length on the axial direction reduce greatly to reduce the axial dimension of clutch slave cylinder.
Description
Technical field
The present invention relates to automotive fields, and in particular to a kind of clutch slave cylinder for clutch release system, clutch
Separation system.
Background technique
Clutch slave cylinder is the important component of clutch release system, and effect is realized in clutch by hydraulic drive
The separation of driven disc and platen.
As shown in Figure 1, clutch slave cylinder includes: cylinder body 11, the piston structure in cylinder body 11 and it is sheathed on piston knot
Spring 12 outside structure, piston structure are connected with piston rod 13 relative to the other end of spring 12.When piston structure is in cylinder body 11
When reciprocating, piston structure is piston stroke along the distance between two axial extreme positions of cylinder body 11, cylinder body 11
Axial length generally includes the length and piston stroke of piston structure.When one timing of piston stroke, the axial length of cylinder body 11
Directly related with the length of piston structure: the axial length of piston structure is longer, then the axial length of cylinder body 11 is also longer.
As shown in Figure 1, existing piston structure includes piston 14 and spring base 15, in which:
Piston 14 is included along direction arrangement and head 14a interconnected and ontology 14b far from piston rod 13；
Spring base 15 is included along direction arrangement and connecting pin 15a interconnected and pedestal 15b far from piston rod 13；
Connecting pin 15a is fixedly connected by the pin hole (not marking) being formed on ontology 14b with ontology 14b, and pedestal 15b is inserted in spring
In 12.
The length of above-mentioned piston structure in the axial direction is the sum of head 14a, the length of ontology 14b and pedestal 15b.
Entire piston structure is longer in the length on 11 axial direction of cylinder body, occupies the big quantity space inside cylinder body 11；In order to full
The requirement of sufficient piston stroke eventually leads to entire clutch slave cylinder then the length of cylinder body 11 in the axial direction is also corresponding elongated
Structure size is larger.
In terms of manufacture angle, large-sized clutch slave cylinder means large-sized mold and high material cost；From
Angle of assembling sees that installation difficulty of large-sized clutch slave cylinder on vehicle is also larger.
Summary of the invention
Problems solved by the invention is that the axial dimension of clutch slave cylinder in the prior art is larger, is unfavorable for manufacturing and fill
Match.
To solve the above problems, the present invention provides a kind of clutch slave cylinder, comprising: cylinder body；Piston structure is located at the cylinder
In vivo, there is the first end and second end along the cylinder body axial direction；Piston rod connects with the first end of the piston structure
It connects, the cylinder body is stretched out in one end of the piston rod；Spring is located in the cylinder body, and the second end of the piston structure plugs
In the spring；The piston structure includes: connector, described with head and the connecting pin extended from the head
Head and the connecting pin are arranged along the direction far from the piston rod；Piston is located at the head relative to the piston rod
The other side, be formed with pin hole corresponding with the connecting pin in the piston, the connecting pin is fixedly arranged in the pin hole；Institute
The one end for stating piston is inserted in the spring.
Optionally, the first rib is formed on the periphery wall of the piston, one end of the spring, which is supported, is set to described first
Rib.
Optionally, first rib close to the piston towards one end of the piston rod, insert along axial by the piston
Length in the spring is greater than the half of the piston axial length.
Optionally, the head is formed with the second rib on the periphery wall of described piston one end；The piston structure
Further include lip ring, is set between first rib and second rib, and be sheathed on outside the piston.
Optionally, in radial directions, second rib and the piston have the part radially to match.
Optionally, the cylinder body is also connected with lock piece, and the lock piece is located at second rib relative to described
The other side of one rib and the one end for being located at the cylinder body, the internal diameter of the lock piece are less than the outer diameter of second rib.
Optionally, the piston rod has bulb close to the one end on the head, and the head is relative to the piston rod
Side be formed with ball-and-socket, the bulb is rotatably arranged in the ball-and-socket.
The present invention also provides a kind of clutch release systems comprising clutch slave cylinder described in any of the above embodiments.
Compared with prior art, technical solution of the present invention has the advantage that
The piston structure of clutch slave cylinder includes connector and piston, and connector is for connecting piston rod and piston, piston
Use simultaneously as spring base, eliminate the setting of spring base, meet piston stroke it is constant under the premise of, piston can be made
The middle length of piston structure in the axial direction greatly reduces structure compared with the prior art, to reduce the axis of clutch slave cylinder
To size.
Detailed description of the invention
Fig. 1 is the schematic cross-section of clutch slave cylinder in axial direction in the prior art；
Fig. 2 is the schematic cross-section of clutch slave cylinder of the present invention in axial direction；
Fig. 3 is the enlarged drawing of piston structure in clutch slave cylinder of the present invention；
Fig. 4 shows piston structure schematic diagram when the second rib mismatches with piston radial.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
The embodiment of the present invention provides a kind of clutch slave cylinder, referring to Fig. 2, including cylinder body 1, piston structure 100, piston rod 2
And spring 3.Piston structure 100 is located in cylinder body 1, has the first end and second end along 1 axial direction of cylinder body；Piston rod 2
It is connect with the first end of piston structure 100, cylinder body 1 is stretched out in one end of piston rod 2；Spring 3 is located in cylinder body 1, piston structure 100
Second end be inserted in spring 3.
Referring to Fig. 2 and Fig. 3 is combined, piston structure 100 includes connector 110 interconnected and piston 120.
The connecting pin 112 that connector 110 has head 111 and extends from head 111,112 edge of head 111 and connecting pin
Direction far from piston rod 2 arranges that head 111 and connecting pin 112 are integrally formed；Piston 120 is located at head 111 relative to piston
The other side of bar 2 is formed with pin hole 121 corresponding with connecting pin 112 in piston 120, and connecting pin 112 is fixedly arranged in pin hole 121；
One end of piston 120 is inserted in spring 3.
Piston rod 2 has bulb 2b close to the one end on head 111, and head 111 is formed with ball relative to the side of piston rod 2
In nest 111b, bulb 2b insertion ball-and-socket 111b and it is rotatably arranged in bulb 2b in ball-and-socket 111b；Piston rod 2 stretches out cylinder body 1
Outer part is cased with protective cover 2a, and protective cover 2a is connect with cylinder body 1, and wherein protective cover 2a can be rubber material.
Further, with continued reference to Fig. 2 and Fig. 3 is combined, is formed with the first rib 120a on the periphery wall of piston 120, it is living
After in 120 insertion spring 3 of plug, spring 3 is supported close to one end of piston rod 2 and is set on the first flange 120a.In the present embodiment, setting
First rib 120a close to piston 120 towards one end (left end of middle piston 120 shown in Fig. 3) of piston rod 2, and piston 120
The half that the length in spring 3 is greater than 120 axial length of piston is inserted in along axial direction.That is, the big portion of piston 120
Divide and be all inserted in spring 3, can guarantee that spring 3 can be steadily set in outside piston 120 in this way, make piston in other words
120 being capable of steadily support spring 3.
Head 111 is formed with the second rib 111a on the periphery wall of 120 one end of piston；First rib 120a and second
There is interval in the axial direction between rib 111a；Piston structure 100 further includes lip ring 130, is set to the first rib 120a
And second between rib 111a, lip ring 130 is sheathed on that piston 120 is outer and, lip ring in sealing contact with piston 120
The inner wall of 130 periphery wall and cylinder body 1 is in sealing contact.
The accommodation space that a sealing is surrounded between lip ring 130,1 inner wall of cylinder body and piston 120, for accommodating liquid
Pressure oil, the first rib 120a and the second rib 111a are that lip ring 130 provides limit in the axial direction.
Wherein, in order to guarantee that piston structure 100 can go on smoothly reciprocating motion in cylinder body 1, the first rib 120a and
The outer diameter of second rib 111a should be slightly less than the internal diameter of cylinder body 1.
As shown in figure 3, in radial directions, the second rib 111a and piston 120 have the part radially to match, annular
Form an annular groove (not marking) between second rib 111a and connecting pin 112, connecting pin 112 is inserted in pin hole 121, same
When piston 120 be inserted in the annular groove, the second rib 111a in the axial direction some along extending axially to the outer of piston 120
It is against the periphery wall of piston 120 on peripheral wall and by lip ring 130, it is avoided to fall off from piston 120.
When piston structure 100 is installed, the head 111 of connector 110 is connect with piston rod 2；By lip ring 130 from
Piston 120 is inserted in close to the one end on head 111；Then connecting pin 112 is inserted in the pin hole 121 of piston 120.
When installation, since the internal diameter of lip ring 130 is smaller than the outer diameter of piston 120, it is therefore desirable to first by ring packing
Part 130 by flexible deformation rear enclosure on the periphery wall of piston 120, at this point, one end of lip ring 130 headward 111
May headward 111 stretching piston 120 and be partially covered on the corresponding end-faces of piston 120 (referring to fig. 4)；It then will be even
Outbound 112, which is inserted into pin hole 121, can push lip ring when second rib 111a is moved along 120 periphery wall of piston
130 retreat to completely on the periphery wall of piston 120.That is, entire lip ring 130 is inevitable all in work after installing
On the periphery wall of plug 120, and it is arranged between the first rib 120a and the second rib 111a.
Referring to Fig. 4, if the part that the second rib 111a does not match radially with piston 120, when connecting pin 112 is inserted into
After pin hole 121, the end face opposite with head 111 of piston 120 is substantially flush, and lip ring 130 is covered on 120 end of piston at this time
Part on face can be then stuck between above-mentioned both ends of the surface, so as to cause the deflection of lip ring 130, influence sealing effect.This
The setting of the second rib 111a has then well solved this problem in embodiment.
It can be seen that the piston structure 100 in the present embodiment changes piston in the prior art and head is integrally formed
Mode, the component that head and piston are divided into two is different, piston can also be used as spring base simultaneously, with prior art phase
Than the setting of spring base being eliminated, thus the available shortening of axial length of entire piston structure.
Further, cylinder body 1 is also connected with lock piece 4, and lock piece 4 is located at the second rib 111a relative to the first rib
The other side of 120a and the one end for being located at cylinder body 1, the internal diameter of lock piece 4 rise in the axial direction less than the outer diameter of the second rib 111a
To the position-limiting action to the second rib 111a.When piston structure 100 is reciprocating in cylinder body 1, lock piece 4 provides for it
Limit in axial direction prevents piston structure 100 to be detached from cylinder body 1.
In addition, cylinder body 1 offers through-hole 5, the inner cavity company of through-hole 5 and cylinder body 1 far from one end of piston rod 2 referring to Fig. 2
Logical, when clutch slave cylinder is installed into clutch release system, through-hole 5 is connect with hydraulic oil pipe (not shown), and hydraulic oil is logical
It crosses through-hole 5 to be injected into 1 inner cavity of cylinder body, wherein hydraulic oil pipe is fixed by the fixing piece 6 for being connected to cylinder body 1.
Cylinder body 1 is also provided with gas vent 7 far from one end of piston rod 2, for discharging the gas in cylinder body 1, works as clutch
When wheel cylinder is not mounted to clutch release system, gas vent 7 is closed with dustproof cover 8.
The present invention also provides a kind of clutch release systems, including above-mentioned clutch slave cylinder.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (6)
1. a kind of clutch slave cylinder, comprising:
Cylinder body；
Piston structure is located in the cylinder body, has the first end and second end along the cylinder body axial direction；
Piston rod is connect with the first end of the piston structure, and the cylinder body is stretched out in one end of the piston rod；
Spring is located in the cylinder body, and the second end of the piston structure is inserted in the spring；
It is characterized in that, the piston structure includes:
Connector, with head and the connecting pin extended from the head, the head and the connecting pin are along far from described
The direction of piston rod is arranged；
Piston, the other side positioned at the head relative to the piston rod are formed with and the connecting pin pair in the piston
The pin hole answered, the connecting pin are fixedly arranged in the pin hole；
One end of the piston is inserted in the spring, and the first rib, the spring are formed on the periphery wall of the piston
One end support and be set to first rib, first rib is close to the piston towards one end of the piston rod；The head
Portion is formed with the second rib on the periphery wall of described piston one end；The piston structure further includes lip ring, is set to
Between first rib and second rib, and it is sheathed on outside the piston；In radial directions, second rib with
The piston has the part radially to match, to keep the lip ring.
2. clutch slave cylinder as described in claim 1, which is characterized in that the piston is inserted in the spring along axial direction
Length is greater than the half of the piston axial length.
3. clutch slave cylinder as described in claim 1, which is characterized in that the part radially to match is the of annular
An annular groove is formed between two ribs and connecting pin.
4. clutch slave cylinder as described in claim 1, which is characterized in that the cylinder body is also connected with lock piece, the locking
Part is located at second rib relative to the other side of first rib and is located at one end of the cylinder body, the lock piece
Internal diameter be less than second rib outer diameter.
5. clutch slave cylinder according to any one of claims 1-4, which is characterized in that the piston rod is close to the head
One end has bulb, and the head is formed with ball-and-socket relative to the side of the piston rod, and the bulb is rotatably arranged in institute
It states in ball-and-socket.
6. a kind of clutch release system, which is characterized in that including the described in any item clutch slave cylinders of claim 1-5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279559.2A CN105202061B (en) | 2014-06-20 | 2014-06-20 | Clutch slave cylinder and clutch release system |
| DE102015208639.9A DE102015208639A1 (en) | 2014-06-20 | 2015-05-11 | Clutch slave cylinder and clutch release system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279559.2A CN105202061B (en) | 2014-06-20 | 2014-06-20 | Clutch slave cylinder and clutch release system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105202061A CN105202061A (en) | 2015-12-30 |
| CN105202061B true CN105202061B (en) | 2019-11-01 |
Family
ID=54768136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279559.2A Active CN105202061B (en) | 2014-06-20 | 2014-06-20 | Clutch slave cylinder and clutch release system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105202061B (en) |
| DE (1) | DE102015208639A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3054272B1 (en) * | 2016-07-25 | 2018-09-07 | Valeo Embrayages | HYDRAULIC CYLINDER RECEIVER, IN PARTICULAR FOR A HYDRAULIC CONTROL SYSTEM OF A CLUTCH |
| CN106704410B (en) * | 2016-11-30 | 2019-03-01 | 浙江吉利控股集团有限公司 | A kind of clutch general pump |
| DE102016223934A1 (en) | 2016-12-01 | 2018-06-07 | Schaeffler Technologies AG & Co. KG | Plunger of a Kupplungsnehmerzylinders with plastic-molded end and Kupplungsnehmerzylinderanordnung |
| DE102017126001A1 (en) | 2017-11-07 | 2019-05-09 | Schaeffler Technologies AG & Co. KG | Piston-cylinder unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198806A (en) * | 1996-06-04 | 1998-11-11 | 机动车产品(美国)有限公司 | Slave cylinder for hydraulic clutch release system |
| FR2792688B1 (en) * | 1999-04-22 | 2002-04-12 | Valeo | HYDRAULIC CYLINDER FOR A MOTOR VEHICLE CLUTCH CONTROL DEVICE |
| DE20308810U1 (en) * | 2003-05-23 | 2003-08-28 | ZF Sachs AG, 97424 Schweinfurt | Piston-cylinder unit, especially for a motor vehicle braking system or hydraulic coupling, has a permanent magnet mounted on a support surface on the piston with a securing element to secure it axially |
| CN1609470A (en) * | 2003-10-21 | 2005-04-27 | 现代自动车株式会社 | Choke valve of clutch release cylinder |
| CN1720402A (en) * | 2002-11-29 | 2006-01-11 | Zf腓德列斯哈芬股份公司 | Device for increasing the functional reliability of a hydraulic circuit of a hydraulically operable clutch |
| EP2233765A2 (en) * | 2009-03-24 | 2010-09-29 | ZF Friedrichshafen AG | Fluid pressure operating means with a protective cover |
| DE102011087103A1 (en) * | 2010-12-22 | 2012-06-28 | Schaeffler Technologies Gmbh & Co. Kg | Master cylinder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3305442A1 (en) * | 1983-02-17 | 1984-08-23 | Alfred Teves Gmbh, 6000 Frankfurt | MAIN CYLINDER FOR HYDRAULIC BRAKE SYSTEMS OF MOTOR VEHICLES |
| JP2545061Y2 (en) * | 1990-10-23 | 1997-08-25 | 株式会社ナブコ | Resin piston for master cylinder |
| FR2794508B1 (en) * | 1999-06-04 | 2001-08-24 | Valeo | SIMPLIFIED DEVICE FOR HYDRAULICALLY CONTROLLING A CLUTCH, PARTICULARLY FOR A MOTOR VEHICLE |
| KR20070063153A (en) * | 2005-12-14 | 2007-06-19 | 현대자동차주식회사 | A clutch release cylinder |
-
2014
- 2014-06-20 CN CN201410279559.2A patent/CN105202061B/en active Active
-
2015
- 2015-05-11 DE DE102015208639.9A patent/DE102015208639A1/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1198806A (en) * | 1996-06-04 | 1998-11-11 | 机动车产品(美国)有限公司 | Slave cylinder for hydraulic clutch release system |
| FR2792688B1 (en) * | 1999-04-22 | 2002-04-12 | Valeo | HYDRAULIC CYLINDER FOR A MOTOR VEHICLE CLUTCH CONTROL DEVICE |
| CN1720402A (en) * | 2002-11-29 | 2006-01-11 | Zf腓德列斯哈芬股份公司 | Device for increasing the functional reliability of a hydraulic circuit of a hydraulically operable clutch |
| DE20308810U1 (en) * | 2003-05-23 | 2003-08-28 | ZF Sachs AG, 97424 Schweinfurt | Piston-cylinder unit, especially for a motor vehicle braking system or hydraulic coupling, has a permanent magnet mounted on a support surface on the piston with a securing element to secure it axially |
| CN1609470A (en) * | 2003-10-21 | 2005-04-27 | 现代自动车株式会社 | Choke valve of clutch release cylinder |
| EP2233765A2 (en) * | 2009-03-24 | 2010-09-29 | ZF Friedrichshafen AG | Fluid pressure operating means with a protective cover |
| DE102011087103A1 (en) * | 2010-12-22 | 2012-06-28 | Schaeffler Technologies Gmbh & Co. Kg | Master cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105202061A (en) | 2015-12-30 |
| DE102015208639A1 (en) | 2015-12-24 |
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