CN202811897U - Clutch master cylinder - Google Patents
Clutch master cylinder Download PDFInfo
- Publication number
- CN202811897U CN202811897U CN 201220459663 CN201220459663U CN202811897U CN 202811897 U CN202811897 U CN 202811897U CN 201220459663 CN201220459663 CN 201220459663 CN 201220459663 U CN201220459663 U CN 201220459663U CN 202811897 U CN202811897 U CN 202811897U
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- piston
- oil hydraulic
- clutch master
- oil tank
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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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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a clutch master cylinder which comprises a hydraulic cylinder, a piston and a piston rod, wherein the hydraulic cylinder is provided with a cavity with an open end and a closed end; a communicating hole communicated with a branch pump is formed in the side wall, close to the closed end, of the hydraulic cylinder; the piston is arranged in the cavity; the hydraulic cylinder is divided into a working chamber and a non-working chamber by the piston; the piston is matched with the circumferential direction side wall of the cavity in a sealing and sliding way; the piston rod is arranged in the non-working chamber; one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod penetrates out from the open end; an oil channel is arranged on the side wall, close to the closed end, of the hydraulic cylinder, and is communicated with the working chamber of the hydraulic cylinder and an oil tank; and before exhaust, the oil channel is used for filling oil into the working chamber of the hydraulic cylinder, so that the exhaust time can be conveniently shortened.
Description
Technical field
The utility model relates to the auto parts and components field, relates in particular to a kind of clutch master cylinder.
Background technique
Hydraulic clutch master cylinder is the part that connects clutch foot plate and is connected with clutch booster by oil pipe, and its effect is to gather the pedal travel information exchange to cross the effect of booster and make clutch realization separation.
In the prior art, in the oil hydraulic cylinder of hydraulic clutch master cylinder, piston rod one end is connected with piston, the other end passes from the oil hydraulic cylinder opening end, and therefore, piston is divided into active chamber and inoperative chamber with described oil hydraulic cylinder, namely not having piston rod one side is the inoperative chamber, the inoperative chamber is the space of a sealing, when its normal use, and motorist's let slip the clutch, push rod promotes total pump piston increases oil pressure, enter wheel cylinder by flexible pipe, force minute pump rod to promote withdrawal fork, before release bearing is pushed to; When motorist's release the clutch pedal, hydraulic pressure is removed, and withdrawal fork is return original position gradually under the return spring effect, and clutch is in again jointing state, and liquid backflow is in master cylinder.When the driver begins exhaust, during quick release the clutch pedal, piston return quickly under the effect of spring, owing to be subject to viscous resistance, the speed of liquid backflow is considerably slower than the speed that piston is replied, can produce certain degree of vacuum, the liquid in inoperative chamber enters the work active chamber by leather cup, but the liquid that flows into is limited, must be by constantly stepping on clutch pedal during exhaust, could be drained gas, waste time and energy.
Summary of the invention
Technical problem to be solved in the utility model is in the prior art because the effect of fluid viscous resistance, the speed that the fluid of oil hydraulic cylinder refluxes in the hydraulic clutch pump is considerably slower than the speed that piston is replied, cause the active chamber of oil hydraulic cylinder to produce degree of vacuum, liquid flows into active chamber from the inoperative chamber by leather cup, carry out exhaust, the liquid that flows into is very limited, need to be by repeatedly stepping on clutch pedal.
For solving the problems of the technologies described above, a kind of clutch master cylinder of the present invention, it comprises: oil hydraulic cylinder, have the cavity of an opening end and closed end, be formed with the intercommunicating pore that is communicated with wheel cylinder at described oil hydraulic cylinder near described closed end one sidewall; Piston is arranged in the described cavity, and described piston is divided into inoperative chamber and active chamber with described oil hydraulic cylinder, and the circumferential side wall sealed sliding of described piston and described cavity movingly; Piston rod, be arranged in the described active chamber, described piston rod one end is fixedly connected with described piston, the other end passes from described opening end, also be provided with a fluid passage at described oil hydraulic cylinder near on described closed end one sidewall, described fluid passage one end is communicated with described active chamber, and its other end is communicated with an oil tank.
Described oil tank is arranged on described oil hydraulic cylinder near described closed end one side, and described oil hydraulic cylinder has the sidewall of coincidence with described oil tank, and described fluid passage is the through hole that is arranged on the described coincidence sidewall.
Also be provided with the plug screw of the described fluid passage of sealing in the described oil tank.
Be provided with oilhole on the described oil tank, described plug screw one end seals described through hole, and what its other end sealed passes from described oilhole.
Described oilhole is provided with rubber ring, described rubber ring and described plug screw interference fit.
Be provided with fuel level sensor in the described oil cylinder, described fuel level sensor is electrically connected with control system.
The utlity model has following advantage:
(1) clutch master cylinder described in the utility model also is provided with a fluid passage, active chamber and the oil tank of the described oil hydraulic cylinder of described fluid channel connection at oil hydraulic cylinder near on its closed end one sidewall.Be communicated with the active chamber of oil hydraulic cylinder by oil tank is set, when the motorist carries out exhaust, can open first plug screw, make liquid fill with active chamber, reduce period of exhaust.
(2) clutch master cylinder described in the utility model, oil hydraulic cylinder has the sidewall of coincidence with oil tank, and the fluid passage is to be arranged on the through hole that overlaps on the sidewall, simple in structure, reduce cost, do not need connecting pipeline is set in addition, occur breakthrough when avoiding the fluid passage of fluid by oil hydraulic cylinder and oil tank.
(3) clutch master cylinder described in the utility model is provided with plug screw in the oil tank, when exhaust was complete, described plug screw was used for sealing the fluid passage by oil hydraulic cylinder and oil tank, stops fluid to enter in the active chamber of oil hydraulic cylinder.
(4) clutch master cylinder described in the utility model, the oilhole of oil tank is provided with rubber ring, can make plug screw one end pass oilhole and with oilhole by the rubber ring interference fit, make the pressure in the oil tank keep certain, reach the purpose of not easy oil leakage.
Description of drawings
Content of the present utility model is easier to be understood in order to make, and the utility model is further detailed content of the present utility model in connection with the drawings and specific embodiments:
Fig. 1 is clutch master cylinder structural representation described in the utility model.
Wherein, reference character is:
The 1-through hole, 2-plug screw, 3-rubber ring, 4-oil tank, 5-oil hydraulic cylinder, 6-active chamber, 7-inoperative chamber, 8-piston, 9-piston rod.
Embodiment
The below is described in detail two embodiments of the present utility model, but is to be understood that protection domain of the present utility model is not subjected to the restriction of embodiment.
Embodiment 1
As shown in Figure 1, be the embodiment of clutch master cylinder described in the utility model, described clutch master cylinder comprises oil hydraulic cylinder 5, piston 8, piston rod 9 and oil tank 4.
Described oil hydraulic cylinder 5 is a cavity, and the end that described cavity is provided with opening is opening end, and is relative, and the other end of oil hydraulic cylinder 5 is closed end.Be formed with the intercommunicating pore that is communicated with wheel cylinder at described oil hydraulic cylinder 5 near described closed end one sidewall.The opening end that described piston rod 9 passes oil hydraulic cylinder 5 enters the inner chamber of oil hydraulic cylinder 5, and the opening sealed sliding of described piston rod 9 and oil hydraulic cylinder 5 movingly.Described piston rod 9 one ends are positioned at oil hydraulic cylinder 5 inner chambers, and the other end is positioned at the outside of oil hydraulic cylinder 5.The end that is positioned at the piston rod 9 of oil hydraulic cylinder 5 inside is fixedly connected with piston 8, and described piston 8 is slidingly matched with the inner wall sealing of oil hydraulic cylinder 5.Described piston 8 is divided into two airtight chambers with the inside of oil hydraulic cylinder 5, and the chamber of nearly oil hydraulic cylinder 5 opening ends is inoperative chamber 7, and the chamber of nearly oil hydraulic cylinder 5 closed ends is active chamber 6.The oil hydraulic cylinder 5 of described active chamber 6 parts is formed with the intercommunicating pore that is communicated with wheel cylinder near on the sidewall of oil hydraulic cylinder 5 closed ends.Also be provided with a fluid passage at described oil hydraulic cylinder 5 near on described closed end one sidewall, described fluid passage one end is communicated with described active chamber 6, and its other end is communicated with an oil tank 4.Oil tank described in the present embodiment 4 is arranged on described oil hydraulic cylinder 5 near described closed end one side, and described oil hydraulic cylinder 5 has the sidewall of coincidence with described oil tank 4, and described fluid passage is the through hole 1 that is arranged on the described coincidence sidewall.Described coincidence sidewall is that described oil tank 4 and described oil hydraulic cylinder 5 are one-body molded, has public sidewall.
Further, present embodiment is on the basis of above-described embodiment, in described oil tank 4, be provided with plug screw 2 in the present embodiment, described plug screw 2 can seal the through hole 1 that oil tank 4 is communicated with oil hydraulic cylinder 5, described plug screw 2 can the plugging fluid cylinder pressure 5 with the through hole 1 of oil tank 4, plug screw 2 is threaded connection with through hole 1 and cooperates in the present embodiment.Described plug screw 2 one ends seal described through hole 1, and the oilhole that arranges from described oil tank 4 of its other end sealing passes, and the sealing means in the present embodiment is provided with rubber ring 3 for the oilhole at described oil tank 4, described rubber ring 3 and described plug screw 2 interference fit.
The working procedure of clutch master cylinder described in the utility model is as follows:
When motorist's let slip the clutch, the through hole 1 that oil tank 4 is communicated with oil hydraulic cylinder 5 is by plug screw 2 sealings, described piston rod 9 promotes described piston 8 and slides to the closed end of oil hydraulic cylinder 5 movingly with the madial wall sealed sliding of oil hydraulic cylinder 5, fluid in the active chamber 6 enters in the wheel cylinder with the intercommunicating pore that is connected of oil hydraulic cylinder 5 by wheel cylinder under the promotion of piston 8, along with the closed end to oil hydraulic cylinder 5 of piston 8 moves, volume in the active chamber 6 reduces gradually, reaching the part oil pressure that is communicated with wheel cylinder in the active chamber 6 increases, fluid forces minute pump rod to promote withdrawal fork, before release bearing pushed to, reach the clutch of clutch, this and existing clutch general pump are basically identical.
But when carrying out exhaust, open first plug screw 2, active chamber is filled with, close plug screw 2 again, only need step on bipod and just can drain gas this moment.
Obviously, above-described embodiment only is for example clearly is described, and is not the restriction to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all mode of executions exhaustive, and the apparent variation of being extended out thus or the change still be among the protection domain of the utility model claim.
Claims (6)
1. clutch master cylinder, it comprises: oil hydraulic cylinder (5), have the cavity of an opening end and closed end, be formed with the intercommunicating pore that is communicated with wheel cylinder at described oil hydraulic cylinder (5) near described closed end one sidewall; Piston (8) is arranged in the described cavity, and described piston (8) is divided into active chamber (6) and inoperative chamber (7) with described oil hydraulic cylinder (5), and the circumferential side wall sealed sliding of described piston (8) and described cavity movingly; Piston rod (9), be arranged in the described inoperative chamber (7), described piston rod (9) one ends are fixedly connected with described piston (8), the other end passes from described opening end, it is characterized in that, also be provided with a fluid passage at described oil hydraulic cylinder (5) near on described closed end one sidewall, described fluid passage one end is communicated with described active chamber (6), and its other end is communicated with an oil tank (4).
2. clutch master cylinder according to claim 1, it is characterized in that, described oil tank (4) is arranged on described oil hydraulic cylinder (5) near described closed end one side, described oil hydraulic cylinder (5) has the sidewall of coincidence with described oil tank (4), and described fluid passage is the through hole (1) that is arranged on the described coincidence sidewall.
3. clutch master cylinder according to claim 1 and 2 is characterized in that, also is provided with the plug screw (2) of the described fluid passage of sealing in the described oil tank (4).
4. clutch master cylinder according to claim 3 is characterized in that, described oil tank is provided with oilhole on (4), and described plug screw (2) one ends seal described through hole (1), and what its other end sealed passes from described oilhole.
5. clutch master cylinder according to claim 4 is characterized in that, described oilhole is provided with rubber ring (3), described rubber ring (3) and described plug screw (2) interference fit.
6. according to claim 1 and 2 or 4 or 5 described clutch master cylinders, it is characterized in that be provided with fuel level sensor in the described oil cylinder, described fuel level sensor is electrically connected with control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459663 CN202811897U (en) | 2012-09-11 | 2012-09-11 | Clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220459663 CN202811897U (en) | 2012-09-11 | 2012-09-11 | Clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811897U true CN202811897U (en) | 2013-03-20 |
Family
ID=47870772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220459663 Expired - Fee Related CN202811897U (en) | 2012-09-11 | 2012-09-11 | Clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196919A (en) * | 2014-07-19 | 2014-12-10 | 芜湖恒坤汽车部件有限公司 | Automobile clutch cylinder |
-
2012
- 2012-09-11 CN CN 201220459663 patent/CN202811897U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196919A (en) * | 2014-07-19 | 2014-12-10 | 芜湖恒坤汽车部件有限公司 | Automobile clutch cylinder |
| CN104196919B (en) * | 2014-07-19 | 2016-12-07 | 芜湖恒坤汽车部件有限公司 | A kind of automatic clutch cylinder |
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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: 20150911 |
|
| EXPY | Termination of patent right or utility model |