CN105202061A - Clutch slave cylinder and clutch disengagement system - Google Patents
Clutch slave cylinder and clutch disengagement system Download PDFInfo
- Publication number
- CN105202061A CN105202061A CN201410279559.2A CN201410279559A CN105202061A CN 105202061 A CN105202061 A CN 105202061A CN 201410279559 A CN201410279559 A CN 201410279559A CN 105202061 A CN105202061 A CN 105202061A
- Authority
- CN
- China
- Prior art keywords
- piston
- rib
- slave cylinder
- cylinder body
- clutch slave
- 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.)
- Granted
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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
Abstract
The invention discloses a clutch slave cylinder and a clutch disengagement system. The clutch slave cylinder comprises a cylinder block, a piston structure located in the cylinder block, a piston rod connected with the first end of the piston structure, and a spring located in the cylinder block, wherein the second end of the piston structure is inserted in the spring, the piston structure comprises a connecting part provided with a head portion and a connecting pin extending from the head portion, and a piston located on the side, away from the piston rod, of the head portion, the head portion and the connecting pin are arranged in the direction away from the piston rod, a pin hole corresponding to the connecting pin is formed in the piston, the connecting pin is fixedly arranged in the pin hole, and one end of the piston is inserted in the spring. The piston also serves as a spring seat, so that the arrangement of a spring seat is omitted; on the premise that the stroke of the piston is unchanged, the length of the piston structure in the axial direction can be reduced greatly compared with the prior art, so that the axial dimension of the clutch slave cylinder is reduced.
Description
Technical field
The present invention relates to automotive field, be specifically related to a kind of clutch slave cylinder for clutch release system, clutch release system.
Background technique
Clutch slave cylinder is the vitals of clutch release system, and its effect realizes being separated of driven disc and platen in clutch by hydraulic drive.
As shown in Figure 1, clutch slave cylinder comprises: cylinder body 11, and the piston structure being positioned at cylinder body 11 and the spring 12 be sheathed on outside piston structure, piston structure is connected with piston rod 13 relative to the other end of spring 12.When piston structure is reciprocating in cylinder body 11, piston structure along cylinder body 11 axis two limit positions between distance be piston stroke, the axial length of cylinder body 11 generally includes length and the piston stroke of piston structure.When piston stroke one timing, the axial length of cylinder body 11 is 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 comprises piston 14 and spring seat 15, wherein:
Piston 14 has: arrange and interconnective head 14a and body 14b along the direction away from piston rod 13;
Spring seat 15 has: arrange and interconnective connecting pin 15a and pedestal 15b along the direction away from piston rod 13; Connecting pin 15a is fixedly connected with body 14b by the pin-and-hole (mark) be formed on body 14b, and pedestal 15b is inserted in spring 12.
Above-mentioned piston structure length is in the axial direction the length sum of head 14a, body 14b and pedestal 15b.Whole piston structure, longer along the length on cylinder body 11 axial direction, occupies the large quantity space of cylinder body 11 inside; In order to meet the requirement of piston stroke, so cylinder body 11 length is in the axial direction also corresponding elongated, finally causes the physical dimension of whole clutch slave cylinder larger.
From manufacture angle, large-sized clutch slave cylinder means large-sized mould and high cost of material; From angle of assembling, the installation difficulty of large-sized clutch slave cylinder on vehicle is also larger.
Summary of the invention
The problem that the present invention solves is that the axial dimension of clutch slave cylinder in prior art is comparatively large, is unfavorable for manufacturing and assembling.
For solving the problem, the invention provides a kind of clutch slave cylinder, comprising: cylinder body; Piston structure, is positioned at described cylinder body, has the first end along described cylinder body axial direction and the second end; Piston rod, is connected with the first end of described piston structure, and described cylinder body is stretched out in one end of described piston rod; Spring, is positioned at described cylinder body, and the second end of described piston structure is inserted in described spring; Described piston structure comprises: link, the connecting pin having head and extend from described head, and described head and described connecting pin are arranged along the direction away from described piston rod; Piston, is positioned at the opposite side of described head relative to described piston rod, is formed with the pin-and-hole corresponding with described connecting pin in described piston, and described connecting pin is fixedly arranged in described pin-and-hole; One end of described piston is inserted in described spring.
Optionally, the periphery wall of described piston is formed with the first rib, one end of described spring is to being located at described first rib.
Optionally, described first rib is near described piston one end towards described piston rod, and the described piston length be inserted in vertically in described spring is greater than 1/2nd of described piston axial length.
Optionally, described head is formed with the second rib on the periphery wall of described piston one end; Described piston structure also comprises lip ring, is located between described first rib and described second rib, and is sheathed on outside described piston.
Optionally, in radial directions, described second rib and described piston have the part that radial direction matches.
Optionally, described cylinder body is also connected with locking body, and described locking body is positioned at described second rib relative to the opposite side of described first rib and is positioned at one end of described cylinder body, and the internal diameter of described locking body is less than the external diameter of described second rib.
Optionally, described piston rod has bulb near one end of described head, and described head is formed with ball-and-socket relative to the side of described piston rod, and described bulb is located in described ball-and-socket rotationally.
The present invention also provides a kind of clutch release system, and it comprises the clutch slave cylinder described in above-mentioned any one.
Compared with prior art, technological scheme of the present invention has the following advantages:
The piston structure of clutch slave cylinder comprises link and piston, link is for connecting piston rod and piston, piston uses as spring seat simultaneously, eliminate the setting of spring seat, meeting under the constant prerequisite of piston stroke, piston structure can be made greatly to reduce compared to the length in the axial direction of piston structure in prior art, thus reduce the axial dimension of clutch slave cylinder.
Accompanying drawing explanation
Fig. 1 is clutch slave cylinder schematic cross-section in axial direction in prior art;
Fig. 2 is clutch slave cylinder of the present invention schematic cross-section in axial direction;
Fig. 3 is the enlarged view of piston structure in clutch slave cylinder of the present invention;
Fig. 4 shows piston structure schematic diagram when the second rib and piston radial mismatch.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail specific embodiments of the invention below in conjunction with accompanying drawing.
The embodiment of the present invention provides a kind of clutch slave cylinder, with reference to Fig. 2, comprises cylinder body 1, piston structure 100, piston rod 2 and spring 3.Piston structure 100 is positioned at cylinder body 1, has the first end along cylinder body 1 axial direction and the second end; Piston rod 2 is connected with the first end of piston structure 100, and cylinder body 1 is stretched out in one end of piston rod 2; Spring 3 is positioned at cylinder body 1, and the second end of piston structure 100 is inserted in spring 3.
With reference to Fig. 2 composition graphs 3, piston structure 100 comprises interconnective link 110 and piston 120.
The connecting pin 112 that link 110 has head 111 and extends from head 111, head 111 and connecting pin 112 are arranged along the direction away from piston rod 2, head 111 and connecting pin 112 one-body molded; Piston 120 is positioned at the opposite side of head 111 relative to piston rod 2, is formed with the pin-and-hole 121 corresponding with connecting pin 112 in piston 120, and connecting pin 112 is fixedly arranged in pin-and-hole 121; One end of piston 120 is inserted in spring 3.
Piston rod 2 has bulb 2b near one end of head 111, and head 111 is formed with ball-and-socket 111b relative to the side of piston rod 2, and bulb 2b to insert in ball-and-socket 111b and makes bulb 2b be located in ball-and-socket 111b rotationally; The part cover that piston rod 2 stretches out outside cylinder body 1 has safety cover 2a, and safety cover 2a is connected with cylinder body 1, and wherein safety cover 2a can be quality of rubber materials.
Further, continue with reference to Fig. 2 composition graphs 3, the periphery wall of piston 120 is formed with the first rib 120a, piston 120 inserts after in spring 3, spring 3 near one end of piston rod 2 to being located on first grade of limit 120a.In the present embodiment, the first rib 120a is set near piston 120 one end (left end of middle piston 120 shown in Fig. 3) towards piston rod 2, and piston 120 length be inserted in vertically in spring 3 is greater than 1/2nd of piston 120 axial length.That is, the major part of piston 120 is all inserted in spring 3, can ensure that spring 3 can stably be set in outside piston 120 like this, makes piston 120 can stably supported spring 3 in other words.
Head 111 is formed with the second rib 111a on the periphery wall of piston 120 one end; In the axial direction there is interval between first rib 120a and the second rib 111a; Piston structure 100 also comprises lip ring 130, is located between the first rib 120a and the second rib 111a, and it is outer and seal with piston 120 and contact that lip ring 130 is sheathed on piston 120, and the periphery wall of lip ring 130 contacts with the inner wall sealing of cylinder body 1.
Lip ring 130, between cylinder body 1 inwall and piston 120, surround a holding space sealed, for holding hydraulic oil, the first rib 120a and the second rib 111a at axial direction for lip ring 130 provides spacing.
Wherein, in order to ensure that piston structure 100 can move back and forth smoothly in cylinder body 1, the external diameter of the first rib 120a and the second rib 111a should be slightly less than the internal diameter of cylinder body 1.
As shown in Figure 3, in radial directions, second rib 111a and piston 120 have the part that radial direction matches, an annular groove (mark) is formed between second rib 111a of annular and connecting pin 112, connecting pin 112 is inserted in pin-and-hole 121, simultaneously piston 120 and is inserted in this annular groove, second rib 111a in the axial direction lip ring 130 is against the periphery wall of piston 120 by some periphery wall extending piston 120 vertically, avoids it to come off from piston 120.
When piston structure 100 is installed, the head 111 of link 110 is connected with piston rod 2; Lip ring 130 is inserted in from one end near head 111 of piston 120; Then connecting pin 112 is inserted in the pin-and-hole 121 of piston 120.
During installation, because the internal diameter of lip ring 130 is less than the external diameter of piston 120, therefore need first by lip ring 130 by being placed on the periphery wall of piston 120 after resiliently deformable, now, lip ring 130 headward 111 one end may headward 111 stretch out piston 120 and part be covered in (see Fig. 4) on the corresponding end-faces of piston 120; Then connecting pin 112 is inserted pin-and-hole 121, time the second rib 111a is along piston 120 periphery wall movement, lip ring 130 can be promoted and retreat to completely on the periphery wall of piston 120.That is, after installing, whole lip ring 130 is inevitable to be all on the periphery wall of piston 120, and is arranged between the first rib 120a and the second rib 111a.
With reference to Fig. 4, if the part that the second rib 111a does not match with piston 120 radial direction, then after connecting pin 112 inserts pin-and-hole 121, the end face that piston 120 is relative with head 111 is substantially concordant, the part that now lip ring 130 covers on piston 120 end face then can be stuck between above-mentioned both ends of the surface, thus cause the deflection of lip ring 130, affect sealing effect.In the present embodiment, the setting of the second rib 111a then solves this problem well.
As can be seen here, piston structure 100 in the present embodiment changes piston and the integrated mode of head in prior art, head and piston are divided into the parts that two different, piston can also use as spring seat simultaneously, compared with prior art, eliminate the setting of spring seat, thus the axial length of whole piston structure can be shortened.
Further, cylinder body 1 is also connected with locking body 4, locking body 4 is positioned at the second rib 111a relative to the opposite side of the first rib 120a and is positioned at one end of cylinder body 1, and the internal diameter of locking body 4 is less than the external diameter of the second rib 111a, plays the position-limiting action to the second rib 111a in the axial direction.When piston structure 100 is reciprocating in cylinder body 1, to provide axially spacing for it for locking body 4, prevents piston structure 100 from departing from cylinder body 1.
In addition, with reference to Fig. 2, cylinder body 1 offers through hole 5 away from one end of piston rod 2, the inner space of through hole 5 and cylinder body 1, when clutch slave cylinder is mounted in clutch release system, through hole 5 is connected with hydraulic oil pipe (not shown), and hydraulic oil is injected in cylinder body 1 inner chamber by through hole 5, and wherein hydraulic oil pipe is fixed by the fixed block 6 being connected to cylinder body 1.
Cylinder body 1 also offers exhaust port 7 away from one end of piston rod 2, and for discharging the gas in cylinder body 1, when clutch slave cylinder is not mounted to clutch release system, exhaust port 7 dust cover 8 is closed.
The present invention also provides a kind of clutch release system, comprising above-mentioned clutch slave cylinder.
Although the present invention discloses as above, the present invention is not defined in this.Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (8)
1. a clutch slave cylinder, comprising:
Cylinder body;
Piston structure, is positioned at described cylinder body, has the first end along described cylinder body axial direction and the second end;
Piston rod, is connected with the first end of described piston structure, and described cylinder body is stretched out in one end of described piston rod;
Spring, is positioned at described cylinder body, and the second end of described piston structure is inserted in described spring;
It is characterized in that, described piston structure comprises:
Link, the connecting pin that there is head and extend from described head, described head and described connecting pin are arranged along the direction away from described piston rod;
Piston, is positioned at the opposite side of described head relative to described piston rod, is formed with the pin-and-hole corresponding with described connecting pin in described piston, and described connecting pin is fixedly arranged in described pin-and-hole;
One end of described piston is inserted in described spring.
2. clutch slave cylinder as claimed in claim 1, it is characterized in that, the periphery wall of described piston is formed with the first rib, one end of described spring is to being located at described first rib.
3. clutch slave cylinder as claimed in claim 2, it is characterized in that, described first rib is near described piston one end towards described piston rod, and the described piston length be inserted in vertically in described spring is greater than 1/2nd of described piston axial length.
4. clutch slave cylinder as claimed in claim 2, it is characterized in that, described head is formed with the second rib on the periphery wall of described piston one end;
Described piston structure also comprises lip ring, is located between described first rib and described second rib, and is sheathed on outside described piston.
5. clutch slave cylinder as claimed in claim 4, it is characterized in that, in radial directions, described second rib and described piston have the part that radial direction matches.
6. clutch slave cylinder as claimed in claim 4, it is characterized in that, described cylinder body is also connected with locking body, and described locking body is positioned at described second rib relative to the opposite side of described first rib and is positioned at one end of described cylinder body, and the internal diameter of described locking body is less than the external diameter of described second rib.
7. the clutch slave cylinder as described in any one of claim 1-6, is characterized in that, described piston rod has bulb near one end of described head, and described head is formed with ball-and-socket relative to the side of described piston rod, and described bulb is located in described ball-and-socket rotationally.
8. a clutch release system, is characterized in that, comprises the clutch slave cylinder described in any one of claim 1-7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279559.2A CN105202061B (en) | 2014-06-20 | 2014-06-20 | Clutch slave cylinder, 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, clutch release system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105202061A true CN105202061A (en) | 2015-12-30 |
| CN105202061B 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, 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 (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135412A (en) * | 1983-02-17 | 1984-08-30 | Teves Gmbh Alfred | Master cylinder for hydraulic brake systems of vehicles |
| JPH0469270U (en) * | 1990-10-23 | 1992-06-18 | ||
| 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 |
| US6408623B1 (en) * | 1999-06-04 | 2002-06-25 | Valeo | Simplified hydraulic control device for a clutch, especially for an automobile |
| DE20308810U1 (en) * | 2003-05-23 | 2003-08-28 | Zf Sachs Ag | 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 |
| KR20070063153A (en) * | 2005-12-14 | 2007-06-19 | 현대자동차주식회사 | A 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 |
-
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 (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2135412A (en) * | 1983-02-17 | 1984-08-30 | Teves Gmbh Alfred | Master cylinder for hydraulic brake systems of vehicles |
| JPH0469270U (en) * | 1990-10-23 | 1992-06-18 | ||
| 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 |
| US6408623B1 (en) * | 1999-06-04 | 2002-06-25 | Valeo | Simplified hydraulic control device for a clutch, especially for an automobile |
| 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 | 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 |
| KR20070063153A (en) * | 2005-12-14 | 2007-06-19 | 현대자동차주식회사 | A 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 |
|---|---|
| DE102015208639A1 (en) | 2015-12-24 |
| CN105202061B (en) | 2019-11-01 |
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