CN2767243Y - Automobile clutch booster - Google Patents
Automobile clutch booster Download PDFInfo
- Publication number
- CN2767243Y CN2767243Y CN 200520033142 CN200520033142U CN2767243Y CN 2767243 Y CN2767243 Y CN 2767243Y CN 200520033142 CN200520033142 CN 200520033142 CN 200520033142 U CN200520033142 U CN 200520033142U CN 2767243 Y CN2767243 Y CN 2767243Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil cylinder
- master cylinder
- seal ring
- unit
- 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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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model relates to an automobile clutch booster with a front cylinder, which comprises a cylinder, a main oil cylinder in a shell and a lower oil cylinder. The utility model is characterized in that an isolation cavity is arranged on the shell between the main oil cylinder and the lower oil cylinder. Because the utility model is provided with the isolation cavity between the main oil cylinder and the lower oil cylinder, the isolation cavity solves the chronic leakage problem of oil and gas between the main oil cylinder and the lower oil cylinder caused by loose internal organization of aluminum alloy between the main oil cylinder and the lower oil cylinder in the prior art. Thus, the phenomena of oil leakage and gas leakage between the two cylinders are stopped; the reliability and the stability of products are effectively enhanced.
Description
Technical field
The utility model relates to a kind of work-saving device of autoclutch, is specifically related to a kind of cylinder forward type automatic clutch servo-unit.
Background technology
In the prior art, the cylinder forward type clutch servo-unit that is used for automobile all adopts aluminium alloy casting to form, in casting process, use the aluminum alloy cast solid between the master cylinder of automatic clutch servo-unit and the following oil cylinder, because the housing at master cylinder and following oil cylinder place is a profiled piece, when casting, be easy to form uneven in temperature, make the aluminum alloy inside between master cylinder and the following oil cylinder tissue looseness occur, in use cause down high pressure gas in the valve cage of oil cylinder to the seepage of master cylinder easily, and the pressure oil in the master cylinder is to the seepage of following oil cylinder valve cage, thereby influence the effective travel of automatic clutch servo-unit, cause the separation difficulty of power-transfer clutch, produce potential safety hazard.
In addition, have the sealing surface of a relative motion between the cavity inner wall of the master cylinder of existing automatic clutch servo-unit and the main piston, owing to be subjected to the restriction of the relative travel and the assembly space of main piston, generally adopt a seal ring to seal, when main piston is done prolonged and repeated ballistic motion in master cylinder, be easy to make sealing circle premature wear, cause high pressure gas in the cylinder that the string of master cylinder is leaked or master cylinder in pressure oil the string of cylinder is leaked, make the separation difficulty of power-transfer clutch, even produce potential safety hazard.
Summary of the invention
The purpose of this utility model is to provide the automatic clutch servo-unit that does not produce oil, air infiltration leakage between a kind of cylinder body.
The purpose of this utility model is achieved in that a kind of automatic clutch servo-unit, and it comprises: housing, cylinder, push rod fork assembly, and wherein, described housing is connected and fixed by screw and described cylinder, and described housing is provided with master cylinder, following oil cylinder; The bulb push rod of described push rod fork assembly runs through described cylinder and is connected with main piston in being arranged at described master cylinder; Cavity inner wall at the described master cylinder of described housing and described cylinder connection is disposed with wear ring, seal ring; The sidewall of described master cylinder is provided with air bleed hole; It is characterized in that: the described housing between described master cylinder and the following oil cylinder is provided with separate cavities.Just because the setting of this separate cavities, aluminum alloy interior tissue loosen oily, the chronic leakage problems of gas between two cylinders that cause have been solved between master cylinder and the play oil cylinder.
For oil, the gas string that further solves between master cylinder and the cylinder leaks problem, the cavity that the utility model is positioned at the described master cylinder of the close cylinder side of described seal ring is provided with a distance sleeve, inwall at this distance sleeve has a circular groove, and chimeric in this circular groove have a seal ring; Outer wall at described distance sleeve has a circular groove, and chimeric in this circular groove have a seal ring.
The above-mentioned cylinder body interior diameter of oil cylinder down is 16 millimeters.
The utility model is owing to be provided with separate cavities between master cylinder and following oil cylinder, this separate cavities has solved in the prior art because of oil, the chronic leakage problems of gas between loose two cylinders that cause of aluminum alloy interior tissue between master cylinder and the following oil cylinder, stop leakage of oil between two cylinders, gas leak phenomenon, improved reliability of products and stability effectively.
The utility model is owing to set up distance sleeve at the cavity inner wall of master cylinder, seal ring in this distance sleeve is arranged at the double sealing structure that seal ring in the master cylinder cavity constitutes a double insurance in existing product, this double sealing structure can be realized the sealing between main piston and the master cylinder cavity inner wall preferably, has stopped oil between master cylinder and the cylinder, gas string leakage phenomenon effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the housing section of existing automatic clutch servo-unit.
The specific embodiment
Referring to Fig. 3, use the aluminum alloy cast solid between the master cylinder 20 of existing automatic clutch servo-unit and the following oil cylinder 21, because the housing 22 at master cylinder 20 and following oil cylinder 21 places is a profiled piece, when casting, be easy to form uneven in temperature, make the aluminum alloy inside between master cylinder 20 and the following oil cylinder 21 tissue looseness occur, in use cause down high pressure gas in the valve cage 23 of oil cylinder 21 to the seepage of master cylinder 20 easily, and the pressure oil in the master cylinder 20 is to the seepage of oil cylinder 21 down; Thereby influence the effective travel of automatic clutch servo-unit, cause the separation difficulty of power-transfer clutch, produce potential safety hazard.
Referring to Fig. 1, Fig. 2, a kind of automatic clutch servo-unit of the utility model, it comprises: housing 1, cylinder 2, push rod fork assembly 3, wherein, described housing 1 is connected and fixed by screw and described cylinder 2, and described housing 1 is provided with master cylinder 4, following oil cylinder 5; Described push rod fork assembly 3 is connected with power-transfer clutch, and its bulb push rod 6 runs through described cylinder 2 and the main piston 7 interior with being arranged at described master cylinder 4 is connected; Cavity inner wall at described housing 1 and the described master cylinder 4 of described cylinder 2 connections is disposed with wear ring 8, seal ring 9; The front end of described master cylinder 4 is provided with fuel feed hole 17, and this fuel feed hole 17 is connected with main pump (foot pump); The sidewall of described master cylinder 4 is provided with air bleed hole 10; It is characterized in that: the described housing 1 between described master cylinder 4 and the following oil cylinder 5 is provided with separate cavities 11.
The utility model is positioned at described seal ring 9 and is provided with a distance sleeve 14 near the cavity of the described master cylinder 4 of cylinder side, has a circular groove 12 at the inwall of this distance sleeve 14, and chimeric in this circular groove 12 have a seal ring 13; Outer wall at described distance sleeve 14 has a circular groove 15, and chimeric in this circular groove 15 have an O RunddichtringO 16.
Above-mentioned seal ring 13 is the V-shaped seal ring of lips mouth.
The above-mentioned cylinder body interior diameter of oil cylinder 5 down is 16 millimeters.
Claims (4)
1, a kind of automatic clutch servo-unit, it comprises housing (1), cylinder (2), push rod fork assembly (3), and wherein, described housing (1) is connected and fixed by screw and described cylinder (2), and described housing (1) is provided with master cylinder (4), following oil cylinder (5); The bulb push rod (6) of described push rod fork assembly (3) runs through described cylinder (2) and the main piston (7) interior with being arranged at described master cylinder (4) is connected; Cavity inner wall at the described master cylinder (4) of described housing (1) and described cylinder (2) connection is disposed with wear ring (8), seal ring (9); The sidewall of described master cylinder (4) is provided with air bleed hole (10); It is characterized in that: the described housing (1) between described master cylinder (4) and the following oil cylinder (5) is provided with separate cavities (11).
2, automatic clutch servo-unit as claimed in claim 1, it is characterized in that: the cavity that is positioned at the described master cylinder (4) of close cylinder (2) side of described seal ring (9) is provided with a distance sleeve (14), inwall at this distance sleeve (14) has a circular groove (12), and chimeric in this circular groove (12) have a seal ring (13); Outer wall at described distance sleeve (14) has a circular groove (15), and chimeric in this circular groove (15) have a seal ring (16).
3, automatic clutch servo-unit as claimed in claim 1 or 2 is characterized in that: described seal ring (13) is the V-type of lips mouth or Y type or O RunddichtringO; Described seal ring (16) is the O RunddichtringO.
4, automatic clutch servo-unit as claimed in claim 1 is characterized in that: the described cylinder body interior diameter of oil cylinder (5) down is 16 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033142 CN2767243Y (en) | 2005-01-31 | 2005-01-31 | Automobile clutch booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033142 CN2767243Y (en) | 2005-01-31 | 2005-01-31 | Automobile clutch booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2767243Y true CN2767243Y (en) | 2006-03-29 |
Family
ID=36681101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033142 Expired - Fee Related CN2767243Y (en) | 2005-01-31 | 2005-01-31 | Automobile clutch booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2767243Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858393A (en) * | 2010-07-07 | 2010-10-13 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
-
2005
- 2005-01-31 CN CN 200520033142 patent/CN2767243Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858393A (en) * | 2010-07-07 | 2010-10-13 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
| CN101858393B (en) * | 2010-07-07 | 2012-11-28 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20100131 |