CN104963960A - Automobile clutch master cylinder - Google Patents
Automobile clutch master cylinder Download PDFInfo
- Publication number
- CN104963960A CN104963960A CN201510340962.6A CN201510340962A CN104963960A CN 104963960 A CN104963960 A CN 104963960A CN 201510340962 A CN201510340962 A CN 201510340962A CN 104963960 A CN104963960 A CN 104963960A
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- Prior art keywords
- piston
- cylinder body
- path
- valve
- hole
- Prior art date
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- Pending
Links
- 210000000078 claw Anatomy 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000000446 fuel Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to an automobile clutch master cylinder which comprises a cylinder body and a piston arranged in the cylinder body. A sealing ring is arranged on the piston and divides an inner cavity of the cylinder body into a front chamber and a rear chamber. The front end of the piston is connected with one end of a push rod. The other end of the push rod extends away from the cylinder body in the axial direction of the cylinder body and is hinged to a clutch pedal arm. The rear end of the rear chamber of the cylinder body is provided with an oil outlet pipe. An oil inlet pipe is communicated into the front chamber of the cylinder body from a through hole formed in the pipe wall of the cylinder body. A path for communicating the front chamber with the rear chamber is formed in the piston. A one-way valve is arranged on the path. In the communicating direction of the one-way valve, oil is supplied from the front chamber to the rear chamber of the cylinder body. When negative pressure exists in the rear chamber of the cylinder body, oil in the front chamber passes through the path and the one-way valve to enter the rear chamber, so that the negative pressure in the rear chamber is eliminated, the return stroke resistance of a pedal is reduced, and driving discomfortableness of a driver is eliminated.
Description
Technical field
The invention belongs to automobile clutch field, particularly a kind of automobile clutch master cylinder.
Background technique
Automobile clutch master cylinder realizes the connection between clutch pedal and clutch as the on-off control mechanism of automobile, automobile clutch master cylinder mainly comprises cylinder body, be provided with piston in cylinder body, one end of piston is provided with push rod, and push rod stretches out cylinder body and clutch pedal arm is hinged.Clutch pedal is in the process of trampling, push rod promotes piston and moves, thus in the operating cylinder that the fluid in cylinder body is compressed to by oil outlet on clutch, the clutch hydraulic oil that operating cylinder obtains makes clutch work, thus the effect realized clutch, in the process of pedal backhaul, push rod backhaul, drag the backhaul of piston, hydraulic oil backhaul, thus realize the backhaul of pedal arm, due in the process of return, the travelling speed of piston is greater than the back-flow velocity of hydraulic oil, make the vacuum that the indoor appearance of the cylinder chamber of side, clutch master cylinder oil outlet place is certain, therefore push rod backhaul difficulty, cause pedal arm backhaul difficulty, reduce the comfort level of driving.
Summary of the invention
The object of the invention is to: a kind of automobile clutch master cylinder is provided, the backhaul of clutch pedal can be guaranteed, reduce the resistance of clutch backhaul.
For achieving the above object, the technical solution used in the present invention is: a kind of automobile clutch master cylinder, comprise the piston arranged in cylinder body and cylinder body, piston is provided with seal ring, the lumen segmentation of cylinder body is former and later two chambers by seal ring, the front end of piston connects one end of push rod, the other end of push rod extends along Boring mill to the direction away from cylinder body and is articulated and connected with clutch pedal lever A, the rear end of cylinder body rear chamber connects oil outlet tube, the through hole that oil inlet pipe is offered on cylinder body tube wall is communicated in cylinder body front chamber, piston offers the path being communicated with former and later two chambers of cylinder body, this path arranges one-way valve, the conducting direction of one-way valve is that cylinder body front chamber is to rear chamber's fuel feeding.
Compared with prior art, the technique effect that the present invention exists is: on piston, offer the path being communicated with former and later two chambers of cylinder body, path arranges the one-way valve that conducting direction is cylinder body front chamber chamber backward, in the process of pedal quick return, interlock piston quick return, when there is negative pressure in the rear chamber of cylinder body, the fluid of front chamber is by path and enter in rear chamber through one-way valve, thus the negative pressure can eliminated in rear chamber, and then reduce the backhaul resistance of pedal, eliminate uncomfortable feeling during driver.
Accompanying drawing explanation
Fig. 1 is the view that clutch master cylinder coordinates with clutch pedal lever;
Fig. 2 is the structural representation of clutch master cylinder;
Fig. 3 is the Section View of clutch master cylinder;
Fig. 4 is the Section View that piston in clutch master cylinder is positioned at cylinder body middle section position place;
Fig. 5 and Fig. 6 is the enlarged view of II in I and Fig. 4 in Fig. 3 respectively;
The structural representation at two kinds of visual angles that Fig. 7 and Fig. 8 is valve gap in clutch master cylinder, spool, piston end surface coordinate;
Fig. 9 is the valve cover structure schematic diagram in clutch master cylinder;
Figure 10 is the structural representation of clutch master cylinder push rod;
Figure 11 is the structural representation of bearing pin.
Embodiment
By reference to the accompanying drawings 1 to 11, the present invention will be further described in detail:
A kind of automobile clutch master cylinder, comprise the piston 11 arranged in cylinder body 10 and cylinder body 10, piston 11 is provided with seal ring 30, the lumen segmentation of cylinder body 10 is former and later two chambers by seal ring 30, the front end of piston 11 connects one end of push rod 20, the other end of push rod 20 extends along Boring mill to the direction away from cylinder body and is articulated and connected with clutch pedal lever A, the rear end of cylinder body 10 rear chamber connects oil outlet tube 12, the through hole that oil inlet pipe 13 is offered on cylinder body 10 tube wall is communicated in cylinder body 10 front chamber, piston 11 offers the path 111 being communicated with former and later two chambers of cylinder body 10, this path 111 arranges one-way valve, the conducting direction of one-way valve is that cylinder body 10 front chamber is to rear chamber's fuel feeding.
Piston 11 is offered the path 111 being communicated with former and later two chambers of cylinder body, path 111 arranges the one-way valve that conducting direction is cylinder body 10 front chamber chamber backward, in the process of pedal quick return, interlock piston 11 quick return, when there is negative pressure in the rear chamber of cylinder body 10, the fluid of front chamber is by path 111 and enter in rear chamber through one-way valve, thus the negative pressure can eliminated in rear chamber, and then reduce the backhaul resistance of pedal, under the effect of spring tension, facilitate the backhaul of clutch pedal, eliminate uncomfortable feeling during driver.
Described one-way valve comprises the valve body that the piston 11 of offering path 111 by inside is formed, the end that described path 111 is positioned at rear chamber side is connected with valve gap 50, arrange spool 40 between the end of valve gap 50 and path 111, spool 40 comprises valve disc 41 and valve disc 41 is fitted with the end of path 111 or is separated and forms one-way conduction path.Utilize the spool 40 that is arranged on path 111 end and path 111 to form to fit and coordinate with the one-way conduction be separated, thus realize the function of the one-way conduction of one-way valve, and then guarantee that fluid enters rear side chamber to eliminate the negative pressure in rear side chamber from the front side chamber of cylinder body 10, the spool 40 wherein forming one-way valve is arranged in valve gap 50, spool 40 can be locked within valve gap 50 limited range.
Further, described spool 40 also comprises valve rod 42, valve rod 42 forms axial slip with the pilot hole 51 that valve gap 50 is arranged and coordinates, valve gap 50 comprises valve cover 54, and pilot hole 51 is opened in the middle part of valve cover 54, and valve cover 54 periphery is circular contour, valve cover 54 periphery has claw 53 to extend to side, piston 11 place, in the draw-in groove 113 that the claw holding of claw 53 is arranged on the side face of piston 11 end, form gap 52 between claw 53, this gap 52 is for communication paths 111 and rear chamber.The material of valve gap 50 can select plastic material, certain deformability is also possessed while possessing certain resistance to greasy dirt corrosion, when valve gap 50 is assemblied in piston 11 end face, only need by valve gap 50 by being pressed in piston 11 end face, and make claw 53 holding of valve gap 50 in draw-in groove 113, thus realize being fixedly connected with of valve gap 50 and piston 11.Spool 40 is arranged in valve gap 50, the guiding that the valve rod 42 of spool 40 is formed with the pilot hole 51 on valve gap 50 coordinates, thus spool 40 can be limited move along the hole length direction of pilot hole 51, when fluid from the front chamber of cylinder body 10 backward chamber time, fluid is by the filler opening 112 of oil inlet pipe 13 by piston 11 is offered, and by oil inlet hole 112 inlet passage 111, and then entered the rear side chamber of cylinder body 10 by the gap 52 that valve gap 50 is arranged.For the smooth guiding of the sealing effect and spool 40 of guaranteeing spool 40 pairs of paths 111, the front side plate face of described spool 40 is provided with plug 43, plug 43 conforms to path 111 and arranges, thus manifest with path 111 and seal further and leading role, the plug 43 that valve disc 41 biside plate face is arranged and valve rod 42 coordinate with path 111 and pilot hole 51 respectively, avoid spool 40 to occur the phenomenon of deflection.
Further, cylinder sleeve 60 is provided with in cylinder body 10, piston 11 forms slipper seal with cylinder sleeve 60 and coordinates, the tube wall being positioned at cylinder sleeve 60 for being communicated with oil inlet pipe 13 and the through hole 61 of front chamber is offered, composition graphs 5 and Fig. 6, piston 11 and cylinder sleeve 60 gap of rear chamber side are arranged, piston 11 be in front side time, through hole 61 is communicated with the gap between piston 11 and cylinder sleeve 60, when pedal backhaul, seal ring 30 is positioned at the rightmost side of through hole 61, through hole 61 now and the gap be communicated with between piston 11 and cylinder sleeve 60, namely with the front side chamber of cylinder body 10, when cylinder body 10 internal negative pressure is eliminated, the unnecessary fluid of rear side chamber can enter in through hole 61 along this gap, in the process that piston 11 moves to left, and the front side chamber of cylinder body 10 is entered by through hole 61, thus guarantee the stable of the oil liquid pressure in cylinder body 10.
Further, piston 11 exterior contour entirety is little in leading portion diameter, the ladder shaft-like that back segment diameter is large, the back segment large footpath section of piston 11 coordinates with cylinder sleeve 60, in the sleeve pipe 90 that the front end that the leading portion path section of piston 11 extends cylinder body 10 is arranged and the two formation be sealed and matched, the table top place of the large small aperture intersection of cylinder body 10 is provided with limiting gasket 70, when piston 11 be in front side time, due to the effect of limiting gasket 70, the limiting gasket 70 that the boundary of the size shaft part of piston 11 is in the large small aperture intersection of cylinder body 10 against, thus the further reach of limited piston 11, now pedal backhaul terminates.
Further, the outer wall of the leading portion path section of piston 11 is provided with annular groove, O-ring seal is provided with in described annular groove, the inwall of piston 11 leading portion outer wall and sleeve pipe 90 is sealed by O-ring seal, is sealed between the outer wall of sleeve pipe 90 and the inwall of cylinder body 10 by V-arrangement or y-shaped ring 100.
Described push rod 20 integrated injection molding, the front end of piston 11 is provided with the ball cup coordinated with push rod 20 rod end.Replace the push rod of existing middle metal, select the plastics identical with piston material, decrease wearing and tearing when push rod 20 coordinates with piston 11.
Described push rod 20 comprises the shift fork 22 of bar section 21 and the setting of bar section 21 end, described shift fork 22 entirety is in " U " shape, clutch pedal lever 30 is arranged in the opening of shift fork 22, the two side arms of shift fork 22 opening is respectively provided with through hole 221, be provided with bearing pin 23 in through hole 221, bearing pin 23 forms be articulated and connected through through hole 221 and clutch pedal lever 30 successively.
Described bearing pin 23 is working of plastics, and one end of bearing pin 23 is "T"-shaped 231, and bearing pin 23 the other end is provided with the through hole 232 for placing cotter pin, and this through hole 232 is arranged along bearing pin 23 radial direction, and the radial cross section entirety of bearing pin 23 is in " ten " font.
Claims (9)
1. an automobile clutch master cylinder, comprise the piston (11) arranged in cylinder body (10) and cylinder body (10), piston (11) is provided with seal ring (30), the lumen segmentation of cylinder body (10) is former and later two chambers by seal ring (30), the front end of piston (11) connects one end of push rod (20), the other end of push rod (20) extends along Boring mill to the direction away from cylinder body and is articulated and connected with clutch pedal lever A, the rear end of cylinder body (10) rear chamber connects oil outlet tube (12), it is characterized in that: the through hole that oil inlet pipe (13) is offered on cylinder body (10) tube wall is communicated in cylinder body (10) front chamber, piston (11) offers the path (111) being communicated with cylinder body (10) former and later two chambers, (111) arrange one-way valve to this path, the conducting direction of one-way valve is that cylinder body (10) front chamber is to rear chamber's fuel feeding.
2. automobile clutch master cylinder according to claim 1, it is characterized in that: described one-way valve comprises the valve body that the piston (11) of offering path (111) by inside is formed, the end that described path (111) is positioned at rear chamber side is connected with valve gap (50), arrange spool (40) between the end of valve gap (50) and path (111), spool (40) comprises valve disc (41) and valve disc (41) is fitted with the end of path (111) or is separated and forms one-way conduction path.
3. automobile clutch master cylinder according to claim 2, it is characterized in that: described spool (40) also comprises valve rod (42), valve rod (42) forms axial slip with the upper pilot hole (51) arranged of valve gap (50) and coordinates, valve gap (50) comprises valve cover (54), pilot hole (51) is opened in the middle part of valve cover (54), valve cover (54) periphery is circular contour, valve cover (54) periphery has claw (53) to extend to piston (11) side, place, in the draw-in groove (113) that the claw holding of claw (53) is arranged on the side face of piston (11) end, gap (52) is formed between claw (53), this gap (52) is for communication paths (111) and rear chamber.
4. automobile clutch master cylinder according to claim 3, it is characterized in that: in cylinder body (10), be provided with cylinder sleeve (60), piston (11) forms slipper seal with cylinder sleeve (60) and coordinates, the tube wall that through hole (61) for being communicated with oil inlet pipe (13) and front chamber is positioned at cylinder sleeve (60) is offered, piston (11) and cylinder sleeve (60) gap of rear chamber side are arranged, piston (11) be in front side time, through hole (61) is communicated with the gap between piston (11) and cylinder sleeve (60).
5. automobile clutch master cylinder according to claim 4, it is characterized in that: piston (11) exterior contour entirety is in the ladder shaft-like that leading portion diameter is little, back segment diameter is large, the back segment large footpath section of piston (11) coordinates with cylinder sleeve (60), in the sleeve pipe (90) that the front end that the leading portion path section of piston (11) extends cylinder body (10) is arranged and the two formation be sealed and matched, the table top place of the large small aperture intersection of cylinder body (10) is provided with limiting gasket (70).
6. automobile clutch master cylinder according to claim 5, it is characterized in that: the outer wall of the leading portion path section of piston (11) is provided with annular groove, O-ring seal is provided with in described annular groove, the inwall of piston (11) leading portion outer wall and sleeve pipe (90) is sealed by O-ring seal, is sealed between the outer wall of sleeve pipe (90) and the inwall of cylinder body (10) by V-arrangement or y-shaped ring (100).
7. automobile clutch master cylinder according to claim 1, is characterized in that: described push rod (20) integrated injection molding, and the front end of piston (11) is provided with the ball cup coordinated with push rod (20) rod end.
8. automobile clutch master cylinder according to claim 7, it is characterized in that: described push rod (20) comprises the shift fork (22) of bar section (21) and the setting of bar section (21) end, described shift fork (22) entirety is in " U " shape, clutch pedal lever (30) is arranged in the opening of shift fork (22), the two side arms of shift fork (22) opening is respectively provided with through hole (221), bearing pin (23) is provided with in through hole (221), bearing pin (23) forms be articulated and connected through through hole (221) and clutch pedal lever (30) successively.
9. automobile clutch master cylinder according to claim 8, it is characterized in that: described bearing pin (23) is working of plastics, one end of bearing pin (23) is "T"-shaped head (231), bearing pin (23) the other end is provided with the through hole (232) for placing cotter pin, this through hole (232) is arranged along bearing pin (23) radial direction, and the radial cross section entirety of bearing pin (23) is in " ten " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340962.6A CN104963960A (en) | 2015-06-18 | 2015-06-18 | Automobile clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340962.6A CN104963960A (en) | 2015-06-18 | 2015-06-18 | Automobile clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104963960A true CN104963960A (en) | 2015-10-07 |
Family
ID=54218015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510340962.6A Pending CN104963960A (en) | 2015-06-18 | 2015-06-18 | Automobile clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104963960A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949174A (en) * | 2017-04-17 | 2017-07-14 | 常州机电职业技术学院 | Clutch master cylinder |
| CN108105279A (en) * | 2016-11-25 | 2018-06-01 | 舍弗勒技术股份两合公司 | Clutch linkage and clutch master cylinder |
| CN113775669A (en) * | 2021-09-19 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder with clutch semi-linkage point force adjusting structure and clutch system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19648739C1 (en) * | 1996-11-25 | 1998-04-02 | Daimler Benz Ag | Hydraulic master arrangement for motor vehicle clutch |
| US5957030A (en) * | 1996-02-13 | 1999-09-28 | Fahrzeugtechnik Ebern Gmbh | Actuator and the process for its assembly |
| US5987887A (en) * | 1995-10-07 | 1999-11-23 | Luk Gmbh & Co. | Master cylinder |
| JP2006029399A (en) * | 2004-07-13 | 2006-02-02 | Nabtesco Corp | Valve device for preventing shock torque of clutch |
| CN101349295A (en) * | 2007-07-19 | 2009-01-21 | 上海航天汽车机电股份有限公司传感器分公司 | Hydraulic pump master cylinder of car clutch |
| CN101782116A (en) * | 2008-12-30 | 2010-07-21 | 格特拉克·福特传动系统有限公司 | Clutch support |
| CN201568473U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Clutch master cylinder assembly |
| CN202991942U (en) * | 2012-12-18 | 2013-06-12 | 温州市东启汽车零部件制造有限公司 | A novel clutch master cylinder |
| CN203067603U (en) * | 2012-12-24 | 2013-07-17 | 湖南吉利汽车部件有限公司 | Central valve type clutch master cylinder |
| CN203822901U (en) * | 2014-03-10 | 2014-09-10 | 浙江吉尚汽车部件有限公司 | Clutch pump |
| CN203926500U (en) * | 2014-06-27 | 2014-11-05 | 瑞立集团瑞安汽车零部件有限公司 | The clutch master cylinder of tape guide ring structure |
| CN204477115U (en) * | 2015-01-04 | 2015-07-15 | 浙江亚太机电股份有限公司 | A kind of novel clutch master cylinder assembly |
-
2015
- 2015-06-18 CN CN201510340962.6A patent/CN104963960A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5987887A (en) * | 1995-10-07 | 1999-11-23 | Luk Gmbh & Co. | Master cylinder |
| US5957030A (en) * | 1996-02-13 | 1999-09-28 | Fahrzeugtechnik Ebern Gmbh | Actuator and the process for its assembly |
| DE19648739C1 (en) * | 1996-11-25 | 1998-04-02 | Daimler Benz Ag | Hydraulic master arrangement for motor vehicle clutch |
| JP2006029399A (en) * | 2004-07-13 | 2006-02-02 | Nabtesco Corp | Valve device for preventing shock torque of clutch |
| CN101349295A (en) * | 2007-07-19 | 2009-01-21 | 上海航天汽车机电股份有限公司传感器分公司 | Hydraulic pump master cylinder of car clutch |
| CN101782116A (en) * | 2008-12-30 | 2010-07-21 | 格特拉克·福特传动系统有限公司 | Clutch support |
| CN201568473U (en) * | 2009-11-13 | 2010-09-01 | 芜湖恒坤汽车部件有限公司 | Clutch master cylinder assembly |
| CN202991942U (en) * | 2012-12-18 | 2013-06-12 | 温州市东启汽车零部件制造有限公司 | A novel clutch master cylinder |
| CN203067603U (en) * | 2012-12-24 | 2013-07-17 | 湖南吉利汽车部件有限公司 | Central valve type clutch master cylinder |
| CN203822901U (en) * | 2014-03-10 | 2014-09-10 | 浙江吉尚汽车部件有限公司 | Clutch pump |
| CN203926500U (en) * | 2014-06-27 | 2014-11-05 | 瑞立集团瑞安汽车零部件有限公司 | The clutch master cylinder of tape guide ring structure |
| CN204477115U (en) * | 2015-01-04 | 2015-07-15 | 浙江亚太机电股份有限公司 | A kind of novel clutch master cylinder assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105279A (en) * | 2016-11-25 | 2018-06-01 | 舍弗勒技术股份两合公司 | Clutch linkage and clutch master cylinder |
| CN108105279B (en) * | 2016-11-25 | 2021-02-12 | 舍弗勒技术股份两合公司 | Clutch release mechanism and clutch master cylinder |
| CN106949174A (en) * | 2017-04-17 | 2017-07-14 | 常州机电职业技术学院 | Clutch master cylinder |
| CN113775669A (en) * | 2021-09-19 | 2021-12-10 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder with clutch semi-linkage point force adjusting structure and clutch system |
| CN113775669B (en) * | 2021-09-19 | 2022-05-10 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder with clutch semi-linkage point force adjusting structure and clutch system |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151007 |