CN202811907U - Hydraulic clutch master cylinder - Google Patents
Hydraulic clutch master cylinder Download PDFInfo
- Publication number
- CN202811907U CN202811907U CN 201220525826 CN201220525826U CN202811907U CN 202811907 U CN202811907 U CN 202811907U CN 201220525826 CN201220525826 CN 201220525826 CN 201220525826 U CN201220525826 U CN 201220525826U CN 202811907 U CN202811907 U CN 202811907U
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- China
- Prior art keywords
- piston
- hydraulic clutch
- clutch master
- master cylinder
- cylinder body
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a hydraulic clutch master cylinder. The hydraulic clutch master cylinder comprises a cylinder body, a return spring, sealing cups and a piston, wherein the return spring is arranged at the tail end of the piston, the return spring and the piston are both arranged in the cylinder body, the sealing cups are arranged at two ends of the piston, and a guide sleeve is arranged outside the piston and tightly contacts with an inner cavity of the cylinder body. The hydraulic clutch master cylinder is long in service life, excellent in performance, reliable in quality, simple in structure, convenient to install, and suitable for heavy trucks, light trucks, large and medium passenger vehicles, engineering machinery and the like adopting hydraulic control power assisted clutch systems.
Description
Technical field
The utility model relates to a kind of engaging and disengaging gear, particularly a kind of hydraulic clutch master cylinder for automobile clutch system.
Background technique
Hydraulic clutch master cylinder is for power and the displacement of car clutch pedal transmission are set up certain hydraulic output device by the compression of hydraulic oil, after hydraulic oil is discharged, also to prepare the next action cycle, when retreating, piston needs the additional hydraulic oil in piston the place ahead, when being in limit position, wants in piston balance pressure, therefore, generally need balanced compensated mechanism ability regular event in the hydraulic clutch master cylinder.Hydraulic clutch master cylinder of the prior art comprises compensation rate cellular type electrolyte replenishing structure, but its compensate opening is blocked easily, has many potential failure factors.
Application number is that 201220006022.5 Chinese utility model patent discloses a kind of clutch master cylinder with accumulator.It comprises the hydraulic coupling pump housing 1 and accumulator assembly 16, and accumulator assembly 16 comprises rectangular loop 18, accumulator body 19, shell fragment 20, baffle plate 21, steel traveler 22.Stepping on clutch pedal, in the hydraulic pressure rising situation in the hydraulic clutch master cylinder, the accumulator shell fragment bends to spill, stored a part of mechanical energy, can improve the return speed of piston by this part mechanical energy when unclamping pedal master cylinder piston return, shorten the return time of piston.But its power transmission efficiency is low, and has unfavorable factors such as building the pressure inefficacy.
The model utility content
The utility model namely improves for defects, and a kind of hydraulic clutch master cylinder is provided.
For achieving the above object, the utility model provides a kind of hydraulic clutch master cylinder, comprise cylinder body, return spring, leather cup, piston, guide sleeve, wherein return spring is contained in piston end, and return spring and piston all are contained in the cylinder body, guide sleeve is equipped with in the piston outside, the inner chamber close contact of guide sleeve and cylinder body, and leather cup all is equipped with at the piston two ends.
The working method of hydraulic clutch master cylinder described in the utility model is: at first, hydraulic clutch master cylinder is connected with the pedal of clutch, hydraulic clutch master cylinder also is connected with clutch booster by oil pipe simultaneously; Secondly, when starting working, operator step on the pedal of clutch, and the push rod pushing piston that is attached thereto is moved to the left it, when leather cup during by circular arc sealing place, idle stroke is closed under piston action, master cylinder pressure chamber and fuel supply chamber isolation, the pressure of pressure chamber begins to rise, at this moment, high pressure oil is discharged from oil outlet, exports the oil pocket of clutch booster to by oil pipe; When the pedal of operator's loosen the clutch, piston fast right under the effect of return spring moves to initial position, and pressure chamber is communicated with fuel supply chamber, and oil pressure reduces to zero in the oil line pipe.
Preferably, cylinder body comprises oil inlet hole, oil outlet.
Preferably, cylinder body oil inlet hole place comprises inlet connector in above-mentioned arbitrary scheme.
Preferably, piston is pressure chamber with the space segmentation in the cylinder body and supplies sap cavity in above-mentioned arbitrary scheme.
Preferably, the left end cavity of pressure chamber is less than the diameter of right-hand member cavity in above-mentioned arbitrary scheme.
Preferably, the cylinder body end has a projection in above-mentioned arbitrary scheme, is used for the setting-in return spring.
Preferably, the cylinder body oil inlet hole adopts the circular arc type sealing configuration in above-mentioned arbitrary scheme, and the radius of described circular arc is 8mm.
Preferably, design of Sealing Structure is arc structure in above-mentioned arbitrary scheme, therefore can not produce the problems such as compensate opening burr, overlap when leather cup passes into to build when pressing, and avoids building pressing and loses efficacy.
Preferably, the material of guide sleeve is teflon in above-mentioned arbitrary scheme, and its wear resistance is good, friction factor is low, effectively avoids piston generation eccentric wear phenomenon and then avoids producing a series of faults such as piston abnormal sound, oil impregnate etc.
Preferably, piston end has at least one annular groove in above-mentioned arbitrary scheme, is used for the setting-in leather cup.
Preferably, piston end has a diameter less than the projection of piston main body in above-mentioned arbitrary scheme.
Preferably, the shape of cross section of the projection of piston end is the circle that diameter reduces gradually in above-mentioned arbitrary scheme.
Preferably, the cross-sectional diameter of the projection of piston end is less than return spring in above-mentioned arbitrary scheme.
Preferably, piston tip has at least one annular groove in above-mentioned arbitrary scheme, is used for the setting-in leather cup.
In above-mentioned arbitrary scheme, preferably, be reserved with fuel supply chamber between the annular groove of piston tip and the leather cup.
Preferably, piston tip has at least one stair-stepping boss in above-mentioned arbitrary scheme, is used for cooperating with cylinder body.
Preferably, the two end part that piston contacts with guide sleeve respectively have at least one annular space in above-mentioned arbitrary scheme, so that the separation of guide sleeve, replacing, and still available can guarantee guide sleeve micro-strain the time.
Preferably, the center of piston tip has the arc groove of an indent in above-mentioned arbitrary scheme.
The technological scheme of the utility model hydraulic clutch master cylinder comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination still are protection domain of the present utility model.
The utility model hydraulic clutch master cylinder has been cancelled the design of compensate opening, has both guaranteed that idle stroke simultaneously also avoids compensate opening blocked; Design of Sealing Structure avoids building the problem that produces compensate opening burr, overlap when pressing; Guide sleeve is avoided the phenomenons such as piston generation eccentric wear phenomenon and piston abnormal sound, oil impregnate effectively with the stressed conversion of main wearing and tearing and then protection piston.
The utility model hydraulic clutch master cylinder high life, superior performance, reliable in quality, and it is simple in structure, easy for installation, is applicable to adopt heavy truck, light truck, large and medium bus and the engineering machinery etc. of hydraulic operation gas booster type clutch system.
Description of drawings
Fig. 1 is the sectional drawing according to a preferred embodiment of hydraulic clutch master cylinder of the present utility model.
Fig. 2 is the filler opening enlarged view according to the hydraulic clutch master cylinder of Fig. 1.
Wherein: 1, cylinder body; 2, return spring; 3, inlet connector; 4, leather cup; 5, piston; 6, guide sleeve; 7, oil inlet hole; 8, oil outlet; 9, pressure chamber; 10, fuel supply chamber; 11, circular arc sealing.
Embodiment
In order to understand better the utility model, below in conjunction with the preferred embodiment of accompanying drawing detailed description according to hydraulic clutch master cylinder of the present utility model.
Fig. 1 is the structural representation according to the preferred embodiment of hydraulic clutch master cylinder of the present utility model, hydraulic clutch master cylinder as shown in Figure 1 comprises: comprise cylinder body 1, return spring 2, leather cup 4, piston 5, guide sleeve 6, wherein return spring 2 is connected with piston 5, and for example coaxial connection or return spring 2 are nested in the boss outside of piston 5 ends; Return spring 2 also is connected with cylinder body 1 respectively with piston 5, equal coaxial being inlaid in the cylinder body 1 of return spring 2 and piston 5 for example, and guide sleeve 6 is equipped with in piston 5 outsides, the inner chamber close contact of guide sleeve 6 and cylinder body 1; Piston 5 two ends all have groove, and in the groove at two ends at least one leather cup of each setting-in 4, reserve fuel supply chamber 10 between the leather cup 4 of piston 5 right-hand members and the cylinder body 1; The top of cylinder body 1 comprises oil inlet hole 7, and liquid is entered in the cylinder body 1 of hydraulic clutch master cylinder by oil inlet hole 7, and the left end of cylinder body 1 comprises oil outlet 8, and the liquid in the cylinder body is discharged through oil outlet 8.
Fig. 2 is the sealed structural representation according to the preferred embodiment of hydraulic clutch master cylinder of the present utility model, and it comprises circular arc sealing 11, leather cup 4.
Working method with reference to figure 1 and Fig. 2 hydraulic clutch master cylinder described in the utility model is: at first, hydraulic clutch master cylinder is connected with the pedal of clutch, hydraulic clutch master cylinder also is connected with clutch booster by oil pipe simultaneously; Secondly, when starting working, operator step on the pedal of clutch, and the push rod pushing piston 5 that is attached thereto is moved to the left it, when the circular arc that passes through when leather cup 4 seals 11, idle stroke is closed under piston 5 effects, pressure chamber 9 and fuel supply chamber 10 isolation, the pressure of pressure chamber 9 begins to rise, at this moment, high pressure oil is discharged from oil outlet 8, exports the oil pocket of clutch booster to by oil pipe; When the pedal of operator's loosen the clutch, piston 5 fast right under the effect of return spring 2 moves to initial position, and pressure chamber 9 is communicated with fuel supply chamber 10, and oil pressure reduces to zero in the oil line pipe.
The working principle of the utility model hydraulic clutch master cylinder is: the hydraulic oil in the oil cylinder enters the inner chamber of cylinder body 1 through the oil inlet hole 7 of hydraulic clutch master cylinder, when the driver steps on the clutch pedal that is positioned at the automobile operating room, pedal is passed to piston 5 with this power by push rod, impel the piston 5 of hydraulic clutch master cylinder to be moved to the left, therefore the hydraulic oil in the hydraulic clutch master cylinder internal pressure chamber 9 is compressed, pressure increases, along with piston 5 to left translation, hydraulic oil in the pressure chamber 9 is discharged by the oil outlet 8 on the cylinder body 1, make the fluid pressurized in the pipeline that is connected to hydraulic clutch master cylinder, pressure raises, under the effect of oil pressure, the piston of branched pump for hydraulic clutch also is pushed to and moves to left, and promotes separator levers, and the drive release bearing makes clutch separation.
In the present embodiment, circular arc sealing 11 is set between the inwall of oil inlet hole 7 and cylinder body 1, this circular arc seals that 11 structures are round and smooth, transition is mild, without coarse rubbers such as burrs, can be to leather cup 4 injuries, therefore, when piston more than 5 time comes and goes when sealing 11 through oil inlet hole 7 and circular arc, the leather cup 4 that piston 5 front ends are installed with circular arc sealing 11 since mutually mutual friction make sealing surface become more and more smooth, effectively solve because there is the problem of overlap and burr in compensate opening and cause leather cup damaged, thus working efficiency and the working life of having improved hydraulic clutch master cylinder; Secondly, the structure of leather cup 4 guarantees that the hydraulic oil in the pressure chamber 9 can not flow backward to cause to build to press for sap cavity 10 and lost efficacy, move right when being retracted into position shown in Figure 1 at piston 5, the structure of leather cup 4 is conducive to again piston and successfully is moved to the left, and guarantees that the working procedure of hydraulic pressure clutch total pump is stable, efficient.
The technological scheme of the utility model hydraulic clutch master cylinder comprises the combination in any of each part mentioned above, and the simple change of each part mentioned above assembly or combination still are protection domain of the present utility model.
The utility model hydraulic clutch master cylinder operating principle is simple, high life, superior performance, reliable in quality, and it is simple in structure, installation and removal are convenient, is applicable to adopt heavy truck, light truck, large and medium bus and the engineering machinery etc. of hydraulic operation booster type clutch system.
Claims (19)
1. hydraulic clutch master cylinder, comprise cylinder body, return spring, leather cup, piston, wherein return spring is contained in piston end, return spring and piston all are contained in the cylinder body, leather cup all is equipped with at the piston two ends, it is characterized in that: guide sleeve is equipped with in the piston outside, the inner chamber close contact of guide sleeve and cylinder body.
2. hydraulic clutch master cylinder as claimed in claim 1, it is characterized in that: cylinder body comprises oil inlet hole and oil outlet.
3. hydraulic clutch master cylinder as claimed in claim 2, it is characterized in that: cylinder body oil inlet hole place comprises inlet connector.
4. hydraulic clutch master cylinder as claimed in claim 1 is characterized in that: piston is pressure chamber and for sap cavity with the space segmentation in the cylinder body.
5. hydraulic clutch master cylinder as claimed in claim 4, it is characterized in that: the left end cavity of pressure chamber is less than the diameter of right-hand member cavity.
6. hydraulic clutch master cylinder as claimed in claim 2 or claim 3, it is characterized in that: the cylinder body oil inlet hole adopts the circular arc type sealing configuration.
7. hydraulic clutch master cylinder as claimed in claim 6, it is characterized in that: the radius of arc of described circular arc type sealing configuration is 8mm.
8. hydraulic clutch master cylinder as claimed in claim 1, it is characterized in that: the cylinder body end has a projection, is used for the setting-in return spring.
9. hydraulic clutch master cylinder as claimed in claim 1, it is characterized in that: the material of guide sleeve is teflon.
10. such as claim 1 or 4 described hydraulic clutch master cylinders, it is characterized in that: piston end has at least one annular groove.
11. such as claim 1 or 4 described hydraulic clutch master cylinders, it is characterized in that: piston end has a diameter less than the projection of piston main body.
12. hydraulic clutch master cylinder as claimed in claim 11 is characterized in that: the shape of cross section of the projection of piston end is the circle that diameter reduces gradually.
13. hydraulic clutch master cylinder as claimed in claim 11 is characterized in that: the cross-sectional diameter of the projection of piston end is less than return spring.
14. hydraulic clutch master cylinder as claimed in claim 12 is characterized in that: the cross-sectional diameter of the projection of piston end is less than return spring.
15. such as claim 1 or 4 described hydraulic clutch master cylinders, it is characterized in that: piston tip has at least one annular groove.
16. hydraulic clutch master cylinder as claimed in claim 15 is characterized in that: be reserved with fuel supply chamber between the annular groove of piston tip and the leather cup.
17. such as claim 1 or 4 described hydraulic clutch master cylinders, it is characterized in that: piston tip has at least one stair-stepping boss.
18. hydraulic clutch master cylinder as claimed in claim 1 is characterized in that: the two end part that piston contacts with guide sleeve respectively have at least one annular space.
19. such as claim 1 or 4 described hydraulic clutch master cylinders, it is characterized in that: the center of piston tip has the arc groove of an indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525826 CN202811907U (en) | 2012-10-15 | 2012-10-15 | Hydraulic clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525826 CN202811907U (en) | 2012-10-15 | 2012-10-15 | Hydraulic clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811907U true CN202811907U (en) | 2013-03-20 |
Family
ID=47870782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525826 Expired - Fee Related CN202811907U (en) | 2012-10-15 | 2012-10-15 | Hydraulic clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644254A (en) * | 2018-08-03 | 2018-10-12 | 四川柯世达汽车制动系统集团有限公司 | The total pump assembly of wear-resistant clutch |
-
2012
- 2012-10-15 CN CN 201220525826 patent/CN202811907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644254A (en) * | 2018-08-03 | 2018-10-12 | 四川柯世达汽车制动系统集团有限公司 | The total pump assembly of wear-resistant clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20151015 |
|
| EXPY | Termination of patent right or utility model |