CN101858393B - Clutch booster - Google Patents
Clutch booster Download PDFInfo
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- CN101858393B CN101858393B CN 201010219651 CN201010219651A CN101858393B CN 101858393 B CN101858393 B CN 101858393B CN 201010219651 CN201010219651 CN 201010219651 CN 201010219651 A CN201010219651 A CN 201010219651A CN 101858393 B CN101858393 B CN 101858393B
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- clutch booster
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- pneumatic cylinder
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a clutch booster, relating to the technical field of external control of a clutch. The clutch booster is provided with a pneumatic cylinder and a hydraulic cylinder which are connected along the same axis, wherein, a piston is arranged in the pneumatic cylinder, one side of the piston is connected with an action rod and the other side thereof is connected with a piston rod; a spring is arranged between one side of the piston and the pneumatic cylinder, the piston rod is inserted in the hydraulic cylinder, a control valve is arranged vertical to the axis of the hydraulic cylinder, and the pneumatic cylinder and the hydraulic cylinder of the clutch booster are constructed into a whole; a hydraulic chamber and a pneumatic chamber are made from an aluminum alloy material; the outer side of the pneumatic cylinder is provided with a sensor, a wear indicator mounting hole and an air intake port; and the spring forms a self-regulation clutch booster at the piston rod side of the piston and forms a non-self-regulation clutch booster at the action rod side of the piston. The booster is applied to heavy trucks, light trucks, large and medium coaches and engineering machinery with hydraulic control pneumatic boosting type clutch systems.
Description
Technical field
The present invention relates to a kind of external control device of clutch, particularly a kind of clutch booster that auxiliary power is provided with hydrodynamic pressure control.
Background technique
At present; In the clutch operating system of heavy-duty car, motor bus and engineering machinery; Because the controlled clutch pedal is firmly heavy, can not cut off power easily in good time, easily gearshift; Generally between clutch and clutch master cylinder, clutch booster is installed, is used the compressed gas source of vehicle power-assisted to be provided as clutch.The wear-resisting adjustable automobile clutch booster of notification number CN201159252 ' ' the disclosed booster of patent document; The cylinder that comprises cylinder shell and be fixedly connected on the cylinder shell front end; In cylinder shell, be provided with air valve assembly and vent are housed; In the oil cylinder of cylinder shell, oil cylinder piston is housed, an end of oil cylinder piston stretches in the cylinder and is connected with boosting piston, and the front end of boosting piston is push rod fixedly; Be set with main spring on the push rod, get into cylinder promotion boosting piston through air valve assembly control pressurized air power-assisted is provided.Traditional clutch booster cylinder block material adopts steel material to process; In use; Steel material is easily by corrosion, causes cylinder hole inwall to lose circle with unsmooth, to such an extent as between casing wall and oil cylinder piston, cylinder piston the excessive gap of appearance; Make the servo-cylinder seal failure, reduce the functional reliability of clutch booster.On the other hand; Because the structure of clutch booster cylinder body is processed respectively by cylinder body and cylinder block two-part and is fitted together; Be not easy to eliminate machining error and assembly error between the two cylinder hole, to such an extent as to there is the deviation in different axle center between oil har opening and the cylinder-bore, piston stress is uneven at work to make booster; Piston and inboard wall of cylinder block produce the eccentric wear phenomenon, cause seal failure and booster premature damage.In order to address the above problem; There is the way of taking inwall coated with resins to alleviate corrosion phenomena in the existing technology and takes place in the cylinder hole, still, along with the motion of piston in using; Coating layer is worn; Still can cause seal failure, reduce the power-assisted effect, and increase the process equipment and the producting process difficulty of clutch booster.This technical problem has a strong impact on the operational safety of clutch booster, and then reduces the manoeuvring performance and the safety of vehicle.
In the prior art; The technician has designed sensor and wear indicator comes perceived friction pad wear gap, measures the degree of wear; How can sensor and wear indicator be contained on the clutch booster simple and reliable; And provide branch to draw gas, with the use that adapts to different automobile types and the needs of performance, also become the problem that needs the technician to solve.
Summary of the invention
In order to solve the technological deficiency that existing technology exists; The object of the present invention is to provide a kind of clutch booster; It can effectively solve booster cylinder body corrosion problem, makes power-assisted oil cylinder and power-assisted cylinder have higher concentricity simultaneously, conveniently gets gas and sensor installation and wear indicating device; Prolong booster working life, improve the functional reliability of clutch booster assembly.
To achieve these goals, technological scheme of the present invention is:
Clutch booster has the pneumatic cylinder and the oil hydraulic cylinder that connect along same axis, and piston places in the pneumatic cylinder; Piston one side connects operating bar; The piston opposite side connects piston rod, has spring between piston one side and the pneumatic cylinder, and piston rod inserts in the oil hydraulic cylinder; Control valve is vertical with hydraulic cylinder axis to be provided with, and wherein: clutch booster pneumatic cylinder and oil hydraulic cylinder are Construction integration; Hydraulic pressure cavity and atmospheric pressure cavity are aluminum alloy material.
The pneumatic cylinder outer side surface has sensor and wear indicator mounting hole and air hatch.
Spring constitutes the self-regualting type clutch booster at the piston rod side of piston.
Spring constitutes non-self-regualting type clutch booster in the operating bar side of piston.
Because after adopting such scheme; Clutch booster of the present invention in use; The pneumatic cylinder of clutch booster and oil hydraulic cylinder are for being the Construction integration of aluminum alloy material; Utilized aluminum alloy corrosion-resistant, intensity good, the characteristic of wear-resistant, light weight, overcome existing technology and used steel material to cause the defective of cylinder hole inner wall corrosion easily; And oil hydraulic cylinder and pneumatic cylinder adopt Construction integration, just can be in course of working, from the concentricity of technology assurance oil hydraulic cylinder and pneumatic cylinder, avoid taking place the problem of the seal failure that eccentric wear causes.Owing to take above-mentioned measure, improved the usability and the working life of clutch booster significantly.
Conceptual design of the present invention all can be realized same significant technique effect on self-regualting type clutch booster and non-self-regualting type clutch booster.
Description of drawings
Fig. 1 is the plan view of the clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch;
Fig. 2 is the major component sectional view of the self-regualting type clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch;
Fig. 3 is the major component sectional view of the non-self-regualting type clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch;
Fig. 4 is the right elevation of clutch booster Fig. 1 of the present invention;
Fig. 5 is the plan view of the clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch not;
Fig. 6 is the major component sectional view of the self-regualting type clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch not;
Fig. 7 is the major component sectional view of the non-self-regualting type clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch not;
Fig. 8 is the right elevation of Fig. 5 of the clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch not.
Label in the accompanying drawing:
1. pneumatic cylinder, 2. operating bar, 3. liquid entering hole, 4. suction port, 5. piston, 6. spring; 7. sensor and wear indicator mounting hole, 8. control valve, 9. hydraulic pressure cavity, 10. atmospheric pressure cavity, 11. piston rods, 12. protection pads; 13. the protection pad, 14. relief openings, 15. control valves are isolated spiracle, 16. Returnning springs, 17. Returnning springs; 18. suction valve, 19. compressed air channels, 20. hydraulic pressure cavity and atmospheric pressure cavity are isolated spiracle, 21. oil hydraulic cylinders, 22. air hatch.
Embodiment
Be further described below in conjunction with the embodiment of Figure of description clutch booster of the present invention.
This clutch booster also can as Fig. 2 and shown in Figure 6 be the self-regualting type clutch booster; Also can be as Fig. 3 and shown in Figure 7 be non-self-regualting type clutch booster; Fig. 2 and shown in Figure 6 be the structure that the self-regualting type clutch booster omits operating bar 2 parts, Fig. 3 and shown in Figure 7 be the structure that non-self-regualting type clutch booster omits operating bar 2 parts.Difference between the two is that spring 6 is arranged on the position opposite of piston 5, and wherein, the spring 6 of self-regualting type clutch booster is arranged on piston rod 11 1 sides of piston 5, but not the spring 6 of self-regualting type clutch booster is arranged on operating bar 2 one sides of piston 5.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4 to shown in first kind of embodiment of clutch booster be described further.Clutch booster of the present invention has the pneumatic cylinder 1 and oil hydraulic cylinder 21 that connect along same axis, and operating bar 2 stretches out from pneumatic cylinder 1 one ends; Piston 5 places in the pneumatic cylinder 1; Piston 5 one sides connect operating bar 2, and piston 5 opposite sides connect piston rod 11, have spring 6 between piston 5 one sides and the pneumatic cylinder 1; Piston rod 11 inserts in the oil hydraulic cylinder 21; Control valve 8 and oil hydraulic cylinder 21 axis normal settings, wherein: control valve is isolated spiracle 15 1 ends and is communicated with between 8 liang of seal rings of control valve, and the other end is through relief opening 14 and atmosphere; Hydraulic pressure cavity and atmospheric pressure cavity are isolated spiracle 20 1 ends and are communicated with between 11 liang of seal rings of piston rod of oil hydraulic cylinder 9, the other end and atmosphere.11 liang of seal ring arranged outside protections of the piston rod of oil hydraulic cylinder 21 pad 12 and protection pad 13.Pneumatic cylinder 1 outer side surface has sensor and wear indicator mounting hole 7 and air hatch 22.
Fig. 5, Fig. 6, Fig. 7, shown in Figure 8 be the clutch booster of the present invention of belt sensor and wear indicator mounting hole and air hatch not; This clutch booster also can be as shown in Figure 6 be the self-regualting type clutch booster; Also can be as shown in Figure 7 be non-self-regualting type clutch booster; This embodiment and last embodiment's difference only is whether the pneumatic cylinder outer side surface has sensor and wear indicator mounting hole 7 and air hatch 22; The clutch booster of belt sensor and wear indicator mounting hole 7 air hatch 22; Its effect provides branch and draws gas and control source of the gas, sensor installation and wear indicator easily, and the different clutch booster is for the use of satisfying different automobile types and performance requirement.
Clutch booster hydraulic pressure cavity 21 is an aluminum alloy material with atmospheric pressure cavity 1; Utilize that aluminum alloy material itself had corrosion-resistant, intensity good, the characteristic of wear-resistant, light weight; Prevented the possibility that the inside wall of cylinder in use is corroded, overcome because the defective of the seal failure that corrosion causes; Pneumatic cylinder 1 be a Construction integration with oil hydraulic cylinder 21, can disposablely in the mill carry out the processing of boring mill to cylinder and oil cylinder, and assurance cylinder and oil cylinder axis concentric avoids in use taking place the problem of the seal failure that the piston eccentric wear causes.
In the work, the liquid entering hole 3 of clutch booster connects oil hydraulic pump, and the hydraulic pressure installation here can be an oil gear; Suction port 4 connects compressed air plant, when stepping on clutch, and the hydraulic pressure cavity 9 that pressure liquid gets into oil hydraulic cylinder 21 from liquid entering hole 3; Act on piston rod 11, the piston that promotion piston rod 11 and drive are connected with piston rod 11 moves to operating bar 2 directions, and operating bar 2 removes to promote the clutch friction plate device; Meanwhile; The pressure liquid that gets into hydraulic pressure cavity 9 acts on the control valve 8 in the hydraulic pressure cavity 9, spool is moved open suction valve 18, and pressurized air gets into the atmospheric pressure cavity 10 of pneumatic cylinder 1 through suction port 4, suction valve 18, compressed air channel 19; Pressure is acted on piston 5, realize the purpose of power-assisted.And when oil, gas blowby appear scurrying in the seal ring between piston rod 11 and the oil hydraulic cylinder 21, can hydraulic pressure cavity and atmospheric pressure cavity isolation spiracle 20 between two seal rings leak into atmosphere, avoided the power-assisted inefficacy.Equally on control valve 8; Also on spool, make control valve and isolate spiracle 15; When scurrying oily gas blowby, can the control valve isolation spiracle 15 between two seal rings leak into atmosphere through relief opening 14, Returnning spring 16 and Returnning spring 17 are in order to reset when control valve 8 is closed.Pneumatic cylinder 1 outer side surface has sensor and wear indicating device mounting hole 7, can easily sensor and wear indicating device be installed setting.At 11 liang of seal ring arranged outside protections of piston rod pad 12 and protection pad 13 of oil hydraulic cylinder 21, seal ring is clamped, prevent seal ring generation flange, perhaps extrusion shearing damages, and guarantees the reliability of sealing on the one hand, increases the service life on the other hand.
Clutch booster of the present invention is useful on heavy truck, light truck, large and medium bus and the engineering machinery of hydraulic operation gas booster type clutch system.
Claims (3)
1. clutch booster has the pneumatic cylinder and the oil hydraulic cylinder that connect along same axis, and piston places in the pneumatic cylinder; Piston one side connects operating bar, and the piston opposite side connects piston rod, has spring between any side of piston and the pneumatic cylinder; Piston rod inserts in the oil hydraulic cylinder; Control valve is vertical with hydraulic cylinder axis to be provided with, and the pneumatic cylinder of clutch booster and oil hydraulic cylinder are Construction integration, it is characterized in that:
The hydraulic pressure cavity of oil hydraulic cylinder and the atmospheric pressure cavity of pneumatic cylinder are aluminum alloy material;
Control valve is isolated spiracle (15) one ends and is communicated with between control valve (8) two seal rings, and the other end is through relief opening (14) and atmosphere;
Hydraulic pressure cavity and atmospheric pressure cavity are isolated spiracle (20) one ends and are communicated with between piston rod (11) two seal rings of oil hydraulic cylinder (9), the other end and atmosphere;
The pneumatic cylinder outer side surface has sensor and wear indicator mounting hole and air hatch.
2. clutch booster according to claim 1 is characterized in that: spring constitutes the self-regualting type clutch booster at the piston rod side of piston.
3. clutch booster according to claim 1 is characterized in that: spring constitutes non-self-regualting type clutch booster in the operating bar side of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219651 CN101858393B (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010219651 CN101858393B (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101858393A CN101858393A (en) | 2010-10-13 |
| CN101858393B true CN101858393B (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010219651 Active CN101858393B (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101858393B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3744994A1 (en) * | 2019-05-29 | 2020-12-02 | WABCO Europe BVBA | Clutch servo assembly, clutch actuation system and a motor vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179832A (en) * | 2014-07-19 | 2014-12-03 | 芜湖恒坤汽车部件有限公司 | Hydraulic cylinder of clutch |
| CN105114485A (en) * | 2015-09-11 | 2015-12-02 | 安徽江淮汽车股份有限公司 | Clutch booster assembly for automobile |
| CN107524734A (en) * | 2017-08-23 | 2017-12-29 | 安徽江淮汽车集团股份有限公司 | Clutch servo device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2060099A (en) * | 1979-07-17 | 1981-04-29 | Nisshin Kogyo Kk | Pneumatic booster assembly for vehicles |
| CN2767243Y (en) * | 2005-01-31 | 2006-03-29 | 金振远 | Automobile clutch booster |
| CN200949614Y (en) * | 2006-08-31 | 2007-09-19 | 万安集团诸暨汽车零部件有限公司 | Booster assembly of automobile clutch |
| CN201221579Y (en) * | 2008-05-27 | 2009-04-15 | 瑞立集团瑞安汽车零部件有限公司 | Electric control pneumatic clutch booster device |
| EP2053260A2 (en) * | 2007-10-25 | 2009-04-29 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Clutch booster |
| CN201875020U (en) * | 2010-07-07 | 2011-06-22 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110325Y (en) * | 2007-08-28 | 2008-09-03 | 刘锦辉 | Clutch booster |
| CN101713439B (en) * | 2009-12-29 | 2012-05-02 | 瑞立集团瑞安汽车零部件有限公司 | Improved multifunctional clutch booster |
-
2010
- 2010-07-07 CN CN 201010219651 patent/CN101858393B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2060099A (en) * | 1979-07-17 | 1981-04-29 | Nisshin Kogyo Kk | Pneumatic booster assembly for vehicles |
| CN2767243Y (en) * | 2005-01-31 | 2006-03-29 | 金振远 | Automobile clutch booster |
| CN200949614Y (en) * | 2006-08-31 | 2007-09-19 | 万安集团诸暨汽车零部件有限公司 | Booster assembly of automobile clutch |
| EP2053260A2 (en) * | 2007-10-25 | 2009-04-29 | KNORR-BREMSE Systeme für Nutzfahrzeuge GmbH | Clutch booster |
| CN201221579Y (en) * | 2008-05-27 | 2009-04-15 | 瑞立集团瑞安汽车零部件有限公司 | Electric control pneumatic clutch booster device |
| CN201875020U (en) * | 2010-07-07 | 2011-06-22 | 瑞立集团瑞安汽车零部件有限公司 | Clutch booster |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3744994A1 (en) * | 2019-05-29 | 2020-12-02 | WABCO Europe BVBA | Clutch servo assembly, clutch actuation system and a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101858393A (en) | 2010-10-13 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Clutch booster Effective date of registration: 20201126 Granted publication date: 20121128 Pledgee: Wenzhou Ruian sub branch of China CITIC Bank Co., Ltd Pledgor: Ruili Group Ruian Auto Parts Co.,Ltd. Registration number: Y2020330000954 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |