CN107701612B - Clutch master cylinder with adjustable initial build-up pressure stroke - Google Patents
Clutch master cylinder with adjustable initial build-up pressure stroke Download PDFInfo
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- CN107701612B CN107701612B CN201711020032.8A CN201711020032A CN107701612B CN 107701612 B CN107701612 B CN 107701612B CN 201711020032 A CN201711020032 A CN 201711020032A CN 107701612 B CN107701612 B CN 107701612B
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- 238000004891 communication Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 39
- 238000000926 separation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D25/00—Fluid-actuated clutches
- F16D25/12—Details not specific to one of the before-mentioned types
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a clutch master cylinder with an adjustable initial build-up stroke, which comprises a pump body shell with an opening at one end, wherein the pump body shell is provided with an oil inlet and an oil outlet, a bushing is sleeved in the pump body shell, a depth adjusting device is arranged between the outer end of the bushing and the opening end of the pump body shell, a gap is reserved between the bushing and the pump body shell, an outer sealing device and an inner sealing device are arranged between the two ends of the bushing and the pump body shell, a piston is sleeved in the bushing, a gap is reserved between the piston and the bushing, an inner sliding sealing device and an outer sliding sealing device are arranged between the two ends of the piston and the bushing, and an elastic return device is arranged between the inner end of the piston and the pump body shell; the wall of the lining is provided with a compensation hole and a communication hole, and the inner sliding sealing device is positioned between the compensation hole and the communication hole. The invention can eliminate manufacturing and assembling errors to achieve the consistency of half linkage heights of clutch pedals and improve the consistency of vehicles, can adjust the half linkage heights of different clutch pedals, and meets the different requirements of users on the half linkage heights of the clutch pedals.
Description
Technical Field
The invention relates to the field of automobile part manufacturing, in particular to a clutch master cylinder with an adjustable initial pressure building stroke.
Background
With the continuous development of the automobile industry in China and the continuous improvement of the living standard of people, the requirements of people on driving comfort are higher and higher, particularly the requirements on convenience of operating systems such as a clutch system, a brake system and the like are higher and higher, so that the clutch system using the long-contact release bearing is favored by users more and more because the clutch system is high in efficiency and the clutch system is not required to be adjusted along with the abrasion of a friction plate in the use process. However, the clutch system using the long contact release bearing has the defect that the half clutch linkage height cannot be adjusted, and the half clutch linkage height of the same vehicle pedal is different or the clutch pedal with the same half linkage height cannot meet the requirements of different users on the half clutch linkage height due to the reasons of manufacturing and assembling errors of parts and the like.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the clutch master cylinder with adjustable initial pressure building stroke can eliminate manufacturing and assembling errors to achieve the consistency of half linkage heights of clutch pedals of all vehicles, improve the consistency of the vehicles, and adjust the half linkage heights of different clutch pedals without changing any part parameters so as to meet different requirements of different users on the half linkage heights of the clutch pedals.
In order to solve the technical problems, the technical scheme of the invention is as follows: the clutch master cylinder with the adjustable initial build-up pressure stroke comprises a pump body shell with an opening at one end, wherein an oil inlet is arranged at one end, close to the opening, of the pump body shell, an oil outlet is arranged at the other end, a bushing is sleeved in the pump body shell, a depth adjusting device is arranged between the outer end of the bushing and the opening end of the pump body shell, a gap is reserved between the outer peripheral wall of the bushing and the inner peripheral wall of the pump body shell, an outer sealing device is arranged between the outer end of the bushing and the pump body shell, an inner sealing device is arranged between the inner end of the bushing and the pump body shell, a piston is sleeved in the bushing in a sliding manner, a gap is reserved between the outer peripheral wall of the piston and the inner peripheral wall of the bushing, an inner sliding sealing device is arranged between the outer end of the piston and the bushing, and an elastic return device is arranged between the inner end of the piston and the pump body shell; the inner sliding sealing device is characterized in that a compensation hole is formed in the lining wall, a communication hole is further formed in the outer side of the compensation hole in the lining wall, and the inner sliding sealing device is located between the compensation hole and the communication hole.
As an optimal technical scheme, a locking device is arranged on the pump body shell and positioned at the outer end of the bushing.
As an optimal technical scheme, the locking device is a locking nut, and an inner through hole is formed in the middle of the locking nut.
As the preferable technical scheme, the depth adjusting device comprises a connecting part protruding from the peripheral wall of the outer end of the bushing, an external adjusting thread is arranged on the peripheral wall of the connecting part, an internal adjusting thread is arranged on the inner peripheral wall of the opening end of the pump body shell, and the outer end of the bushing is connected with the opening end of the pump body shell through the external adjusting thread and the internal adjusting thread.
As an optimized technical scheme, the outer sealing device is an outer sealing groove arranged on the peripheral wall of the outer end of the bushing, and an outer sealing ring is arranged in the outer sealing groove.
As an optimized technical scheme, the inner sealing device is an inner sealing shoulder arranged at the end part of the inner end of the bushing, an inner sealing ring and an inner sealing check ring are arranged on the inner sealing shoulder, and a bushing spring is arranged between the inner sealing check ring and the pump body shell.
As an optimized technical scheme, the outer sliding sealing device is an outer sliding sealing groove arranged on the peripheral wall of the outer end of the piston, and an outer sliding sealing ring is arranged in the outer sliding sealing groove.
As the preferable technical scheme, the inner sliding sealing device is an inner sliding sealing shoulder arranged at the end part of the inner end of the piston, the inner sliding sealing shoulder is provided with an inner sliding sealing ring and an inner sliding sealing check ring, and the elastic return device is arranged between the inner sliding sealing check ring and the pump body shell.
As an preferable technical scheme, the elastic return device is a return spring.
The clutch master cylinder with the adjustable initial build-up pressure stroke comprises a pump body shell with an opening at one end, wherein an oil inlet is arranged at one end, close to the opening, of the pump body shell, an oil outlet is arranged at the other end, a bushing is sleeved in the pump body shell, a depth adjusting device is arranged between the outer end of the bushing and the opening end of the pump body shell, a gap is reserved between the outer peripheral wall of the bushing and the inner peripheral wall of the pump body shell, an outer sealing device is arranged between the outer end of the bushing and the pump body shell, an inner sealing device is arranged between the inner end of the bushing and the pump body shell, a piston is sleeved in the bushing in a sliding manner, a gap is reserved between the outer peripheral wall of the piston and the inner peripheral wall of the bushing, an inner sliding sealing device is arranged between the outer end of the piston and the bushing, and an elastic return device is arranged between the inner end of the piston and the pump body shell; the inner sliding sealing device is characterized in that a compensation hole is formed in the lining wall, a communication hole is further formed in the outer side of the compensation hole in the lining wall, and the inner sliding sealing device is located between the compensation hole and the communication hole. In this way, a gap is reserved between the outer peripheral wall of the bushing and the inner peripheral wall of the pump body shell to form a compensation cavity b, a gap is reserved between the outer peripheral wall of the piston and the inner peripheral wall of the bushing to form a piston cavity c, a pressure building cavity a is formed between the inner end of the piston and the inner end of the pump body shell, the inner sealing device and the inner sliding sealing device, the oil inlet is communicated with the compensation cavity b, the oil outlet is communicated with the pressure building cavity a, the inner sliding sealing device is initially positioned between the compensation hole and the communication hole, the compensation hole is communicated with the pressure building cavity a and the compensation cavity b, the communication hole is communicated with the piston cavity c and the compensation cavity b, the distance between the compensation hole and the inner sliding sealing device can be adjusted through the depth of the bushing entering the pump body shell adjusted through the depth adjusting device, the initial pressure building stroke can be accurately controlled through the depth of the bushing entering the pump body shell, and the clutch system using long contact release bearing can eliminate manufacturing and assembling errors through adjusting the initial pressure building stroke, the pedal half height of all vehicles is consistent, the vehicle pedal is improved, and the linkage performance can be met under the condition that the condition of different half-height and the same clutch pedal is different from the full-height of the same clutch pedal, and the same user can not adjust the full-height clutch pedal height.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention. Wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the present invention.
In the figure: 1-a bushing spring; 2-a pump body housing; 3-in a seal ring; 4-lining; 5-locking nuts; a 6-connection; 7-a piston; 8-sliding a sealing ring; 81-sliding a sealing retainer ring; 9-compensating holes; 10-an inner sealing retainer ring; 11-a return spring; 12-oil inlet; 13-communicating holes; 14-pushing rod; 15-an outer sliding seal ring; 16-an outer seal ring; a-building a pressure cavity; b-a compensation chamber; c-piston chamber.
Detailed Description
As shown in fig. 1 and 2, the clutch master cylinder with an adjustable initial build-up pressure stroke comprises a pump body shell 2 with an opening at one end, wherein an oil inlet 12 is arranged at one end, close to the opening, of the pump body shell 2, an oil outlet is arranged at the other end, a bushing 4 is sleeved in the pump body shell 2, a depth adjusting device is arranged between the outer end of the bushing 4 and the opening end of the pump body shell 2, a gap is reserved between the outer peripheral wall of the bushing 4 and the inner peripheral wall of the pump body shell 2, an outer sealing device is arranged between the outer end of the bushing 4 and the pump body shell 2, an inner sealing device is arranged between the inner end of the bushing 4 and the pump body shell 2, a piston 7 is sleeved in a sliding manner in the bushing 4, a push rod 14 is arranged at the outer end of the piston 7, a gap is reserved between the outer peripheral wall of the piston 7 and the inner peripheral wall of the bushing 4, an outer sliding sealing device is arranged between the outer end of the piston 7 and the bushing 4, and an elastic return device is arranged between the inner end of the piston 7 and the pump body shell 2; the wall of the lining 4 is provided with a compensation hole 9, the wall of the lining 4 is positioned outside the compensation hole 9 and is also provided with a communication hole 13, and the inner sliding sealing device is positioned between the compensation hole 9 and the communication hole 13. Two compensating holes 9 and two communicating holes 13 are symmetrically distributed on the bush 4 for preventing the unsmooth exhaust of the master cylinder. In this way, a gap is reserved between the outer peripheral wall of the bushing 4 and the inner peripheral wall of the pump body shell 2 to form a compensation cavity b, a gap is reserved between the outer peripheral wall of the piston 7 and the inner peripheral wall of the bushing 4 to form a piston cavity c, a pressure building cavity a is formed between the inner end of the piston 7 and the inner end of the pump body shell 2, the inner sealing device and the inner sliding sealing device, the oil inlet 12 is communicated with the compensation cavity b, the oil outlet is communicated with the pressure building cavity a, the inner sliding sealing device is located between the compensation hole 9 and the communication hole 13 in the initial stage, the compensation hole 9 is communicated with the pressure building cavity a and the compensation cavity b, the communication hole 13 is communicated with the piston cavity c and the compensation cavity b, and thus the distance between the compensation hole 9 and the inner sliding sealing device can be adjusted through the depth adjusting device of the bushing 4 entering the pump body shell 2 to adjust the initial pressure building stroke, and the initial pressure building stroke can be accurately controlled through the depth adjusting device of the bushing 4 entering the pump body shell 2.
As shown in fig. 1 and 2, a locking device is provided on the pump body housing 2 at the outer end of the bush 4. The locking device is a locking nut 5, and an inner through hole is formed in the middle of the locking nut 5. The firm and stable of the bushing 4 is ensured, and a retainer ring can be arranged on the outer side of the lock nut 5, so that the locking reliability of the lock nut 5 is ensured. The depth adjusting device comprises a connecting portion 6 protruding from the peripheral wall of the outer end of the bushing 4, an outer adjusting thread is arranged on the peripheral wall of the connecting portion 6, an inner adjusting thread is arranged on the inner peripheral wall of the opening end of the pump body shell 2, and the outer end of the bushing 4 is connected with the opening end of the pump body shell 2 through the outer adjusting thread and the inner adjusting thread. The outer sealing device is an outer sealing groove arranged on the peripheral wall of the outer end of the bushing 4, and an outer sealing ring 16 is arranged in the outer sealing groove. The inner sealing device is an inner sealing shoulder arranged at the end part of the inner end of the bushing 4, an inner sealing ring 3 and an inner sealing retainer ring 10 are arranged on the inner sealing shoulder, and a bushing spring 1 is arranged between the inner sealing retainer ring 10 and the pump body shell 2, so that the inner sealing ring 3 is prevented from falling off. The outer sliding sealing device is an outer sliding sealing groove arranged on the peripheral wall of the outer end of the piston 7, and an outer sliding sealing ring 15 is arranged in the outer sliding sealing groove. The inner sliding sealing device is an inner sliding sealing shoulder arranged at the end part of the inner end of the piston 7, an inner sliding sealing ring 8 and an inner sliding sealing check ring 81 are arranged on the inner sliding sealing shoulder, and the elastic return device is arranged between the inner sliding sealing check ring 81 and the pump body shell 2, so that the inner sliding sealing ring 8 is prevented from falling off when the piston 7 returns normally. The elastic return device is a return spring 11.
As shown in fig. 1, at the beginning of the operation, the distance between the compensating hole 9 and the inner slide seal ring 8 is a certain value, that is, the initial pressure build-up stroke is a certain value. If the initial pressure build-up stroke is to be adjusted, the distance between the compensation hole 9 and the inner sliding seal ring 8 can be adjusted by adjusting the specific adjustment method comprises the following steps: when the lock nut 5 is opened, the distance between the compensation hole 9 and the inner sliding seal ring 8 of the rotary bushing 4 changes along with the rotation, so that the pressure building cavity a also changes, the distance between the compensation hole 9 and the inner sliding seal ring 8 increases when the rotary bushing is screwed in, namely, the initial pressure building stroke increases, the distance between the compensation hole 9 and the inner sliding seal ring 8 decreases when the rotary bushing is unscrewed out, the initial pressure building stroke decreases along with the reduction, and the back tightening lock nut 5 is adjusted.
The working process comprises the following steps: when the pressure is built, the push rod 14 pushes the piston 7 to move, and the channels between the pressure building cavity a, the compensation cavity b and the piston cavity c are blocked by the inner sliding sealing ring 8 and the inner sealing ring 3, so that oil is sealed in the pressure building cavity a, and the oil pressure is built. When the pressure is released, the piston 7 returns under the action of the return spring 11, the compensation hole 9 is opened, the pressure build-up cavity a is communicated with the compensation cavity b and the piston cavity c, and the pressure is released. From the above description, the invention can adjust the size of the initial pressure building stroke by adjusting the depth of the bushing 4 screwed into the pump body shell 2, and can precisely control the initial pressure building stroke by controlling the size of the screwing depth.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an initially build pressure stroke adjustable separation and reunion master cylinder, includes one end open-ended pump body shell, be close to opening one end on the pump body shell and be equipped with the oil inlet and the other end is equipped with the oil-out, its characterized in that: the inner sealing device is characterized in that a bushing is sleeved in the pump body shell, a depth adjusting device is arranged between the outer end of the bushing and the opening end of the pump body shell, a gap is reserved between the outer peripheral wall of the bushing and the inner peripheral wall of the pump body shell, an outer sealing device is arranged between the outer end of the bushing and the pump body shell, an inner sealing device is arranged between the inner end of the bushing and the pump body shell, a piston is sleeved in the bushing in a sliding manner, a gap is reserved between the outer peripheral wall of the piston and the inner peripheral wall of the bushing, an inner sliding sealing device is arranged between the inner end of the piston and the bushing, an outer sliding sealing device is arranged between the outer end of the piston and the bushing, and an elastic return device is arranged between the inner end of the piston and the pump body shell; the inner sliding sealing device is characterized in that a compensation hole is formed in the lining wall, a communication hole is further formed in the outer side of the compensation hole in the lining wall, and the inner sliding sealing device is located between the compensation hole and the communication hole.
2. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: and a locking device is arranged on the pump body shell and positioned at the outer end of the bushing.
3. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 2, wherein: the locking device is a locking nut, and an inner through hole is formed in the middle of the locking nut.
4. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: the depth adjusting device comprises a connecting part protruding from the peripheral wall of the outer end of the bushing, an external adjusting thread is arranged on the peripheral wall of the connecting part, an internal adjusting thread is arranged on the inner peripheral wall of the opening end of the pump body shell, and the outer end of the bushing is connected with the opening end of the pump body shell through the external adjusting thread and the internal adjusting thread.
5. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: the outer sealing device is an outer sealing groove arranged on the peripheral wall of the outer end of the bushing, and an outer sealing ring is arranged in the outer sealing groove.
6. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: the inner sealing device is an inner sealing shoulder arranged at the end part of the inner end of the bushing, an inner sealing ring and an inner sealing check ring are arranged on the inner sealing shoulder, and a bushing spring is arranged between the inner sealing check ring and the pump body shell.
7. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: the outer sliding sealing device is an outer sliding sealing groove arranged on the peripheral wall of the outer end of the piston, and an outer sliding sealing ring is arranged in the outer sliding sealing groove.
8. The initial build-up pressure stroke adjustable clutch master cylinder according to claim 1, wherein: the inner sliding sealing device is an inner sliding sealing shoulder arranged at the end part of the inner end of the piston, an inner sliding sealing ring and an inner sliding sealing check ring are arranged on the inner sliding sealing shoulder, and the elastic return device is arranged between the inner sliding sealing check ring and the pump body shell.
9. The initial build-up pressure stroke adjustable clutch master cylinder according to any one of claims 1 to 8, wherein: the elastic return device is a return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020032.8A CN107701612B (en) | 2017-10-27 | 2017-10-27 | Clutch master cylinder with adjustable initial build-up pressure stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711020032.8A CN107701612B (en) | 2017-10-27 | 2017-10-27 | Clutch master cylinder with adjustable initial build-up pressure stroke |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107701612A CN107701612A (en) | 2018-02-16 |
| CN107701612B true CN107701612B (en) | 2023-07-07 |
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ID=61182990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711020032.8A Active CN107701612B (en) | 2017-10-27 | 2017-10-27 | Clutch master cylinder with adjustable initial build-up pressure stroke |
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| Country | Link |
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| CN (1) | CN107701612B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521568U (en) * | 2009-09-29 | 2010-07-07 | 奇瑞汽车股份有限公司 | New Clutch Master Cylinder Assembly for Automobile Hydraulic Clutch System |
| CN202188043U (en) * | 2011-08-01 | 2012-04-11 | 臧福运 | Compensation hole-type hydraulic clutch master cylinder |
| CN102734346A (en) * | 2012-05-28 | 2012-10-17 | 芜湖玉泰汽车制动有限公司 | Clutch master cylinder |
| CN102996666A (en) * | 2012-11-29 | 2013-03-27 | 浙江吉利汽车研究院有限公司杭州分公司 | Clutch slave cylinder |
| CN203770480U (en) * | 2014-04-17 | 2014-08-13 | 瑞立集团瑞安汽车零部件有限公司 | Piston type clutch master cylinder |
| CN204592084U (en) * | 2015-04-15 | 2015-08-26 | 石家庄佳信汽车制动系统有限公司 | A kind of plunger type clutch general pump with sliding sleeve |
| CN105202062A (en) * | 2015-10-29 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Oil cup cap fixing mechanism of clutch master cylinder and clutch master cylinder |
| CN206361047U (en) * | 2017-01-09 | 2017-07-28 | 浙江柏瑞汽配有限公司 | A kind of clutch general pump |
| CN207393799U (en) * | 2017-10-27 | 2018-05-22 | 山东五征集团有限公司 | Pressure of just the establishing adjustable clutch general pump of stroke |
-
2017
- 2017-10-27 CN CN201711020032.8A patent/CN107701612B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201521568U (en) * | 2009-09-29 | 2010-07-07 | 奇瑞汽车股份有限公司 | New Clutch Master Cylinder Assembly for Automobile Hydraulic Clutch System |
| CN202188043U (en) * | 2011-08-01 | 2012-04-11 | 臧福运 | Compensation hole-type hydraulic clutch master cylinder |
| CN102734346A (en) * | 2012-05-28 | 2012-10-17 | 芜湖玉泰汽车制动有限公司 | Clutch master cylinder |
| CN102996666A (en) * | 2012-11-29 | 2013-03-27 | 浙江吉利汽车研究院有限公司杭州分公司 | Clutch slave cylinder |
| CN203770480U (en) * | 2014-04-17 | 2014-08-13 | 瑞立集团瑞安汽车零部件有限公司 | Piston type clutch master cylinder |
| CN204592084U (en) * | 2015-04-15 | 2015-08-26 | 石家庄佳信汽车制动系统有限公司 | A kind of plunger type clutch general pump with sliding sleeve |
| CN105202062A (en) * | 2015-10-29 | 2015-12-30 | 安徽江淮汽车股份有限公司 | Oil cup cap fixing mechanism of clutch master cylinder and clutch master cylinder |
| CN206361047U (en) * | 2017-01-09 | 2017-07-28 | 浙江柏瑞汽配有限公司 | A kind of clutch general pump |
| CN207393799U (en) * | 2017-10-27 | 2018-05-22 | 山东五征集团有限公司 | Pressure of just the establishing adjustable clutch general pump of stroke |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107701612A (en) | 2018-02-16 |
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