CN202971667U - Clutch main cylinder - Google Patents
Clutch main cylinder Download PDFInfo
- Publication number
- CN202971667U CN202971667U CN 201220631468 CN201220631468U CN202971667U CN 202971667 U CN202971667 U CN 202971667U CN 201220631468 CN201220631468 CN 201220631468 CN 201220631468 U CN201220631468 U CN 201220631468U CN 202971667 U CN202971667 U CN 202971667U
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- piston
- main cylinder
- clutch
- active chamber
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides a clutch main cylinder which comprises a main cylinder body and a piston component. A working cavity is arranged in the main cylinder body, a main cylinder ail outlet, an oil supply hole and a compensation hole are formed in the main cylinder body, the oil supply hole and the compensation hole are communicated with the main cylinder oil inlet joint and the working cavity, the compensation hole is formed between the main cylinder oil outlet and the oil supply hole, and the working cavity is provided with a contractive cross section between one end of the main cylinder oil outlet and the compensation hole. The piston component comprises a piston and a pushing rod, wherein the piston is arranged in the working cavity, the pushing rod is connected with the piston, and the diameter of the maximum position of the piston is smaller than that of the minimum cross section position of the working cavity. The clutch main cylinder is simple in structure, can enable a driver to feel mild in the process of manipulating of a clutch pedal, is small in needed manipulating force and can effectively improve comfort of manipulating.
Description
Technical field
The utility model relates to automotive field, particularly a kind of clutch master cylinder.
Background technique
Along with automobile is constantly universal, people require more and more higher to its handling comfort, and the clutch pedal in the automobile chassis system is used for the operation of clutch frequently, and its travelling comfort and significance are self-evident.At present for solving the excessive and handling comfort poor of clutch pedal power, how to increase servomechanism on clutch pedal, but this mechanism not only to increase assembly, and at pedal mounting point and the larger installing space of tie point needs that separates master cylinder.
The model utility content
The technical problems to be solved in the utility model is to provide a kind of clutch master cylinder, and this clutch master cylinder is simple in structure, can obviously promote operation portability and the travelling comfort of clutch system.
For solving the problems of the technologies described above, clutch master cylinder of the present utility model comprises:
Master cylinder body, has active chamber in described master cylinder body, be provided with the master cylinder oil outlet on described master cylinder body, and oil inlet hole and the compensate opening of connection master cylinder fuel inlet fitting and described active chamber, wherein said compensate opening is between described master cylinder oil outlet and described oil inlet hole, and described active chamber has the cross section of one section contraction between the end with described master cylinder oil outlet and described compensate opening;
Piston assembly, described piston assembly comprises piston and push rod, and described piston is arranged in described active chamber, and described push rod is connected with described piston, and the diameter of the biggest place of described piston is less than the diameter at the smallest cross-sectional place of described active chamber.
Preferably, have in described active chamber between an end of described master cylinder oil outlet and described piston and be provided with return spring.
Preferably, described master cylinder body also has liquid storage room, and an end of described liquid storage room communicates with described master cylinder fuel inlet fitting, and the other end communicates with described oil inlet hole and described compensate opening.
The clutch master cylinder that the utility model proposes amasss the long-pending variable cross section that changes to of the uniform section of traditional Clutch main cylinder active chamber and present large-little-large variation, and it is simple in structure, and not needing to enlarge installing space can directly be installed on general-utility car.Due to clutch pedal power F
p=F/T, clutch system lever ratio T=S
p* S
f* (S
2/ S
1), so F
p=(F * S
1)/(S
p* S
f* S
2), wherein F is clutch separation power, S
1Be the sectional area of clutch master cylinder active chamber, S
2Be the sectional area of clutch master cylinder, S
pBe clutch pedal lever ratio, S
fBe clutch system separating mechanism lever ratio, therefore draw F
pWith S
1Proportional relation, namely along with the sectional area of Clutch main cylinder active chamber large-little-large variation, clutch pedal power also presents greatly-little-large gradual change process.
Because of the human engineering requirement, clutch pedal power design modification process also requires first increases and then decreases, therefore the utility model just can reduce it when clutch pedal power is maximum, make the driver more mild in the process of handling clutch pedal, the steering force that needs is less, can effectively promote the travelling comfort of manipulation.
Description of drawings
Fig. 1 is the plan view of the utility model embodiment clutch master cylinder.
Fig. 2 is the AA sectional view of Fig. 1.
Fig. 3 is the I section enlarged view of Fig. 2.
Indicate as follows in figure:
Master cylinder fuel inlet fitting-1, master cylinder body-2, construction bolt-3, push rod assembly-4, master cylinder oil outlet-5, return spring-6, leather cup-7, piston-8, push rod-9, liquid storage room-10, active chamber-101, the variable section structure of active chamber-2.1, compensate opening-2.2, oil inlet hole-2.3, piston guide structure-8.1.
Embodiment
For above-mentioned purpose, the feature and advantage that make model utility can become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model, but the utility model can also adopt other to be different from alternate manner described here and implement, those skilled in the art can be in the situation that do similar popularization without prejudice to the utility model intension, so the utility model is not subjected to the restriction of following public specific embodiment.
See also Fig. 1 and Fig. 2, as shown in the figure, the utility model embodiment's clutch master cylinder is comprised of master cylinder body 2 and piston assembly, wherein master cylinder body 2 further comprises the active chamber 101 that arranges within it, master cylinder oil outlet 5 disposed thereon and liquid storage room 10, one end of liquid storage room 10 communicates with master cylinder fuel inlet fitting 1, and the other end communicates with oil inlet hole 2.3 and compensate opening 2.2, the outer construction bolt 3 that has for clutch master cylinder and car load installation of master cylinder body 2.Liquid storage room can provide the space of a storage fluid, also can liquid storage room be set and directly be communicated with master cylinder fuel inlet fitting 1 and active chambers 101 by oil inlet hole 2.3 and compensate opening 2.2 in specific embodiment.Piston assembly further comprises piston 8 and push rod 9, and piston 8 is arranged in active chamber 101, and an end of push rod 9 is connected connection with piston, and the other end is connected with push rod assembly 4, and push rod assembly 4 is connected with clutch pedal.
See also Fig. 3, as shown in the figure, have in active chamber 101 between an end of master cylinder oil outlet 5 and piston 8 and be provided with return spring 6, can be used for helping piston 8 return quickly, in addition, the leather cup 7 with its interference fit is arranged on piston 8, leather cup 7 is between compensate opening 2.2 and oil inlet hole 2.3.Active chamber 101 has the cross section of one section contraction between master cylinder oil outlet 5 and compensate opening 2.2, and the piston guide structure 8.1(on piston 8 is the biggest place of piston 8) diameter less than the diameter at the smallest cross-sectional place of active chamber 101 so that piston 8 can be smoothly variable section structure 2.1 by master cylinder body.
At first embodiment of the present utility model vacuumizes through oil inlet hole 2.3 and compensate opening 2.2 when specific works, the fluid of then annotating in the active chamber 101 by oil inlet hole 2.3 and compensate opening 2.2 respectively.When the Separating force that passes over through clutch pedal when push rod 9 passes to piston 8, piston 8 drives leather cup 7 and travels forward, after leather cup 7 process compensate openings 2.2, and active chamber 101 left chamber pressurizeds, thereby set up higher oil pressure, through separating of a series of pipelines and winding machine clutch.When rapid engage the clutch, return spring 6 moves to right piston 8 quickly, and flowing in pipeline due to fluid has certain resistance, flows slower, makes the chamber in piston 8 left sides form certain degree of vacuum.Under the pressure difference effect of left and right, there is a small amount of fluid to push the one-way valve that leather cup 7 forms open in the chamber on piston 8 right sides, flow to left chamber by leather cup 7 gaps and make up vacuum.When fluid all came back to active chamber 101, because existing a small amount of fluid flows into piston 8 left chamber via one-way valve, therefore the total oil mass of left chamber is too much, this unnecessary fluid namely flowed back to liquid storage room 10 from compensate opening 2.2.After the oil pressure balance of leather cup 7 both sides, this moment, clutch was in conjunction with complete.In addition, when hydraulic system caused the volume-variation of fluid because of leakage of oil or temperature variation, compensate opening 2.2 can make the oil mass in whole oil circuit obtain suitable increase and decrease, to guarantee the reliability of normal oil pressure and hydraulic work system.
Although the utility model is described in conjunction with above embodiment, but the utility model is not defined to above-described embodiment, and only be subjected to the restriction of claims, those of ordinary skills can easily modify to it and change, but do not leave essence design of the present utility model and scope.
Claims (3)
1. clutch master cylinder comprises:
Master cylinder body, has active chamber in described master cylinder body, be provided with the master cylinder oil outlet on described master cylinder body, and oil inlet hole and the compensate opening of connection master cylinder fuel inlet fitting and described active chamber, wherein said compensate opening is between described master cylinder oil outlet and described oil inlet hole, and described active chamber has the cross section of one section contraction between the end with described master cylinder oil outlet and described compensate opening;
Piston assembly, described piston assembly comprises piston and push rod, and described piston is arranged in described active chamber, and described push rod is connected with described piston, and the diameter of the biggest place of described piston is less than the diameter at the smallest cross-sectional place of described active chamber.
2. clutch master cylinder according to claim 1, is characterized in that, has in described active chamber between an end of described master cylinder oil outlet and described piston to be provided with return spring.
3. clutch master cylinder according to claim 1, is characterized in that, described master cylinder body also has liquid storage room, and an end of described liquid storage room communicates with described master cylinder fuel inlet fitting, and the other end communicates with described oil inlet hole and described compensate opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631468 CN202971667U (en) | 2012-11-26 | 2012-11-26 | Clutch main cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631468 CN202971667U (en) | 2012-11-26 | 2012-11-26 | Clutch main cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971667U true CN202971667U (en) | 2013-06-05 |
Family
ID=48512745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631468 Expired - Fee Related CN202971667U (en) | 2012-11-26 | 2012-11-26 | Clutch main cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971667U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870593A (en) * | 2017-04-13 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | The Clutch main cylinder of variable cross section product |
| CN113565894A (en) * | 2021-07-22 | 2021-10-29 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder assembly and vehicle |
-
2012
- 2012-11-26 CN CN 201220631468 patent/CN202971667U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870593A (en) * | 2017-04-13 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | The Clutch main cylinder of variable cross section product |
| CN113565894A (en) * | 2021-07-22 | 2021-10-29 | 安徽江淮汽车集团股份有限公司 | Clutch master cylinder assembly and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: Hefei City, Anhui Province, 230022 East Road No. 176 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20191126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |