CN204921763U - Clutch master cylinder structure - Google Patents
Clutch master cylinder structure Download PDFInfo
- Publication number
- CN204921763U CN204921763U CN201520696773.8U CN201520696773U CN204921763U CN 204921763 U CN204921763 U CN 204921763U CN 201520696773 U CN201520696773 U CN 201520696773U CN 204921763 U CN204921763 U CN 204921763U
- Authority
- CN
- China
- Prior art keywords
- push rod
- piston
- ring
- total pump
- pump push
- 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 belongs to the technical field of car parts, a clutch master cylinder structure is provided, total pump push rod including promoting piston motion is close to in the cylinder body with installing the retaining ring of total pump push rod's one end, the retaining ring is close to the one end of piston is equipped with the toper groove, total pump push rod includes push rod body and bulb, the piston of bulb side support lean on in piston, retaining ring side be equipped with with the toper structure of toper groove looks adaptation, toper structure cartridge in the toper groove, the push rod body passes the retaining ring connect in the retaining ring side. The utility model discloses a total pump push rod sets up the toper structure, and the retaining ring sets up the toper groove, through cone combined with, realizes the spacing of total pump push rod, avoids its swing to reduce the pressure and the frictional force of piston and cylinder body, reduce the wearing and tearing between piston and the cylinder body, make total pump push rod motion more smooth and easy, guarantee the performance of clutch.
Description
Technical field
The utility model belongs to technical field of automobile components, is specifically related to a kind of clutch general pump structure.
Background technique
Clutch master cylinder is the part being connected to clutch foot plate and being connected with clutch booster by oil pipe.During gearshift, driver first need step on clutch pedal, and clutch general pump push rod promotes piston makes oil pressure in clutch system raise, disengaging yoke is promoted again by clutch slave cylinder push rod, disengaging yoke promotes release bearing, and release bearing promotes clutch diaphragm spring, and then realizes being separated.
Existing clutch general pump structure as Figure 1-Figure 2, comprises cylinder body 103, and cylinder body 103 is inserted with piston 104 along in its axial sliding movement, and piston 104 is provided with ball recess; Also comprise total pump push rod 101, total pump push rod 101 is provided with bulb, and the diameter of bulb is little compared with the diameter of ball recess, and bulb is resisted against ball recess; In order to prevent the disengaging of total pump push rod 101 and cylinder body 103, cylinder body 103 is provided with loose rib 107 and jump ring 106 near one end of total pump push rod 101; Between cylinder body 103 and piston 104, return spring 105 is also installed; In order to avoid the impact on clutch general pump such as dirt, between cylinder body 103 and total pump push rod 101, be also provided with dirt-proof boot 102; Total pump push rod 101 passes loose rib 107, jump ring 106 and dirt-proof boot 102 away from one end of piston 104, and leaves gap along the axis of cylinder body 103 between spheroid and loose rib 107.
Existing clutch general pump structure is owing to leaving gap between the center hole of loose rib 107 and total pump push rod 101, when return spring 105 is in free state, total pump push rod 101 can because the effect of self gravitation can swing in ball recess, thus cause the axis of total pump push rod 101 and the axis of cylinder body 103 to be an angle, if this angle is too large, after clutch general pump is installed, the angle that total pump push rod 101 promotes the direction of the Driving force of piston and the axis of cylinder body 103 is too large, piston 104 is caused to increase with the radial pressure of the inwall of cylinder body 103, the resistance to motion of piston 104 increases, affect the performance of clutch, and radial pressure increase makes piston 104 and cylinder body 103 be easy to wear and tear, and shortens the working life of clutch general pump.
Model utility content
The purpose of this utility model is to provide a kind of clutch general pump structure, by total pump push rod, cone structure is set, back-up ring arranges cone tank, by cone match, realize the spacing of total pump push rod, avoid it to swing, thus reduce pressure and the frictional force of piston and cylinder body, reduce the wearing and tearing between piston and cylinder body, make master cylinder pushrod movement more smooth and easy, ensure the performance of clutch.
To achieve these goals, the utility model provides following technological scheme:
A kind of clutch general pump structure, comprises total pump push rod of promotion piston movement and is installed on the back-up ring of cylinder body near one end of described total pump push rod; Described back-up ring is provided with cone tank near one end of described piston; Described total pump push rod comprises putter body and bulb, the piston side of described bulb is resisted against described piston, back-up ring side is provided with the cone structure suitable with described cone tank, and described cone structure is plugged in described cone tank, and described putter body is connected to described back-up ring side through described back-up ring.
Preferably, described back-up ring is tapered collar.
Preferably, the periphery of the large end of described tapered collar is also provided with flange, and described flange is stopped at jump ring, and described jump ring is connected in described cylinder body.
Preferably, radially gap is left between described putter body and described back-up ring.
Preferably, described piston side is spherical structure, and described piston is provided with spherical groove near the side of described bulb, and the radius of described spherical groove equals the radius of described spherical structure, and described spherical structure is resisted against described spherical groove.
Preferably, be also provided with transition body between described piston side and described back-up ring side, the diameter of described transition body is less than the large footpath of described cone tank.
Preferably, described total pump push rod one machine shaping.
The beneficial effects of the utility model are:
The total pump push rod of the utility model arranges cone structure, back-up ring arranges cone tank, cone structure is plugged in cone tank, pass through cone match, realize the spacing of total pump push rod, the swing of total pump push rod when return spring free state can be prevented, thus it is coaxial with cylinder body when ensureing that total pump push rod is installed, when total pump push rod promotes piston movement, radial pressure between piston and cylinder body reduces, and the frictional force of piston and cylinder body is reduced, thus reduces the wearing and tearing between piston and cylinder body, make master cylinder pushrod movement more smooth and easy, ensure the performance of clutch.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art clutch general pump structure;
Fig. 2 is the partial structurtes schematic diagram of prior art clutch general pump structure;
Fig. 3 is the schematic diagram of a kind of embodiment of clutch general pump structure provided by the utility model;
Fig. 4 is the structural representation of the total pump push rod of a kind of embodiment of clutch general pump structure provided by the utility model;
Fig. 5 is the structural representation of a kind of embodiment back-up ring of clutch general pump structure provided by the utility model.
Reference character:
In Fig. 1-Fig. 2:
101, total pump push rod, 102, dirt-proof boot, 103, cylinder body, 104, piston, 105, return spring, 106, jump ring, 107, loose rib;
In Fig. 2-Fig. 5:
201, total pump push rod, 202, dirt-proof boot, 203, cylinder body, 204, jump ring, 205, back-up ring, 206, piston, 207, putter body, 208, back-up ring side, 209, piston side, 210, transition body, 211, center hole, 212, cone tank, 213, flange.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Please refer to Fig. 2-Fig. 5, in a kind of embodiment, clutch general pump structure provided by the utility model, comprises total pump push rod 201 of promotion piston 206 motion and is installed on the back-up ring 205 of cylinder body 203 near one end of total pump push rod 201; Back-up ring 205 is provided with cone tank 212 near one end of piston 203; Total pump push rod 201 comprises putter body 207 and bulb, the piston side 209 of bulb is resisted against piston 206, back-up ring side 208 is provided with the cone structure suitable with cone tank 212, and cone structure is plugged in cone tank 212, and putter body 207 is connected to back-up ring side 208 through back-up ring 205.
The total pump push rod 201 of above-described embodiment arranges cone structure, back-up ring 205 arranges cone tank 212, cone structure is plugged in cone tank 212, pass through cone match, realize the spacing of total pump push rod 201, the swing of total pump push rod 201 when return spring free state can be prevented, thus it is coaxial with cylinder body 203 when ensureing that total pump push rod 201 is installed, total pump push rod 201 promote piston 206 move time, radial pressure between piston 206 and cylinder body 203 reduces, piston 206 is reduced with the frictional force of cylinder body 203, thus the wearing and tearing reduced between piston 206 and cylinder body 203, total pump push rod 201 is made to move more smooth and easy, ensure the performance of clutch.
Particularly, cylinder body 203 is fitted with piston 206 along its axial sliding movement, is also provided with return spring between one end of piston 206 and cylinder body 203, and the other end and total pump push rod 201 offset, and total pump push rod 201 promotes the axis axial motion of piston 201 along cylinder body 203; In order to prevent the disengaging of total pump push rod 201 and cylinder body 203, cylinder body 203 is provided with back-up ring 205 and jump ring 204 near one end of total pump push rod 201; Also return spring is installed between cylinder body 203 and piston 206; In order to avoid the impact on clutch general pump such as dirt, between cylinder body 203 and total pump push rod 201, be also provided with dirt-proof boot 202; Total pump push rod 201 passes back-up ring 205, jump ring 204 and dirt-proof boot 202 away from one end of piston 206.When return spring is in free state, cone structure is inserted and against cone tank 212, due to the cooperation of conical surface, total pump push rod 201 cannot be swung.
Back-up ring 205 is tapered collar.The convenient processing of tapered collar structure.
The wall thickness of preferred tapered collar is equal, and this structure is convenient to processing, and makes the thickness of back-up ring 205 equal, waits wall thickness can improve the intensity of back-up ring 205, ensures its stressed uniformity, the distortion preventing it from causing due to unbalance stress, extend its working life.Particularly, back-up ring 205 entirety is tapered collar, and cone tank 212 is the inwall of tapered collar.The wall thickness of tapered collar also can be unequal.
Back-up ring 205 also can be other structure, as being plane structure or spheric structure away from the side of bulb.
The periphery of the large end of tapered collar is also provided with flange 213, and flange 213 is stopped at jump ring 204, and jump ring 204 is connected in cylinder body 203.Back-up ring 205 and the area of contact of jump ring 204 can be increased by flange 213, ensure the reliability that back-up ring 205 is installed.Jump ring 204 also can directly and the conical surface of tapered collar fit.
Radially gap is left between putter body 207 and back-up ring 205.By being provided with gap between putter body 207 and back-up ring 205, the slip resistance of total pump push rod 201 can be reduced, making the motion of piston 206 more smooth and easy.Back-up ring 205 is provided with center hole 211, and putter body 207, through center hole 211, leaves gap between the inwall of center hole 211 and putter body 207.The structure of center hole 211 can be cylindrical hole, can be also conical bore, or be other profiled holes.
Piston side 209 is spherical structure, and piston 206 is provided with spherical groove near the side of bulb, and the radius of spherical groove equals the radius of spherical structure, and spherical structure is resisted against spherical groove.By waiting the spherical groove of radius and coordinating of spherical structure, can limit the motion of total pump push rod 201 further, when making return spring be in free state, total pump push rod 201 is coaxial with cylinder body 203, ensures the precision that clutch general pump is installed; This structure is convenient to processing simultaneously, and can the area of contact of bulb and piston 206 be made maximum in the limited space of cylinder body 203.
Also can piston side 209 be spherical groove, piston 206 be spherical structure near the side of bulb, but this kind of structure is due to the restriction by bulb radial dimension, and the area of contact of spherical groove and spherical structure is limited; Also piston side 209 plane structure can be near the side of bulb, the two plane contact with piston 206; Or piston side 209 and piston 206 are plane structure near the side one of bulb, and another one is spheric structure.
Also be provided with transition body 210 between piston side 209 and back-up ring side 208, the diameter of transition body 210 is less than the large footpath of cone tank 212.Make the processing of bulb more convenient by transition body 210, and can prevent piston side 209 and cone tank 212 from interfering.Bulb also only can comprise piston side 209 and back-up ring side 208.
The machine shaping of total pump push rod 201 one.I.e. putter body 207, back-up ring side 208, transition body 210 and the machine shaping of piston side 209 4 one, to improve the intensity of total pump push rod 201.Four also can be only adjacent one, the processing of both or three in one, then to be connected together with remaining a few person.
Although the utility model is described in conjunction with above embodiment, but the utility model is not limited to above-described embodiment, and only by the restriction of claim, those of ordinary skill in the art can easily modify to it and change, but do not leave essential idea of the present utility model and scope.
Claims (7)
1. a clutch general pump structure, comprises total pump push rod of promotion piston movement and is installed on the back-up ring of cylinder body near one end of described total pump push rod; It is characterized in that, described back-up ring is provided with cone tank near one end of described piston; Described total pump push rod comprises putter body and bulb, the piston side of described bulb is resisted against described piston, back-up ring side is provided with the cone structure suitable with described cone tank, and described cone structure is plugged in described cone tank, and described putter body is connected to described back-up ring side through described back-up ring.
2. clutch general pump structure according to claim 1, is characterized in that, described back-up ring is tapered collar.
3. clutch general pump structure according to claim 2, is characterized in that, the periphery of the large end of described tapered collar is also provided with flange, and described flange is stopped at jump ring, and described jump ring is connected in described cylinder body.
4. clutch general pump structure according to claim 1, is characterized in that, radially leaves gap between described putter body and described back-up ring.
5. the clutch general pump structure according to any one of claim 1-4, it is characterized in that, described piston side is spherical structure, described piston is provided with spherical groove near the side of described bulb, the radius of described spherical groove equals the radius of described spherical structure, and described spherical structure is resisted against described spherical groove.
6. clutch general pump structure according to claim 1, is characterized in that, is also provided with transition body between described piston side and described back-up ring side, and the diameter of described transition body is less than the large footpath of described cone tank.
7. clutch general pump structure according to claim 1, is characterized in that, the machine shaping of described total pump push rod one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696773.8U CN204921763U (en) | 2015-09-09 | 2015-09-09 | Clutch master cylinder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696773.8U CN204921763U (en) | 2015-09-09 | 2015-09-09 | Clutch master cylinder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921763U true CN204921763U (en) | 2015-12-30 |
Family
ID=54970894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520696773.8U Expired - Fee Related CN204921763U (en) | 2015-09-09 | 2015-09-09 | Clutch master cylinder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090276A (en) * | 2015-09-09 | 2015-11-25 | 安徽江淮汽车股份有限公司 | Clutch master cylinder structure |
-
2015
- 2015-09-09 CN CN201520696773.8U patent/CN204921763U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090276A (en) * | 2015-09-09 | 2015-11-25 | 安徽江淮汽车股份有限公司 | Clutch master cylinder structure |
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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: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automotive Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20190909 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |