CN201875020U - Clutch booster - Google Patents
Clutch booster Download PDFInfo
- Publication number
- CN201875020U CN201875020U CN2010202504467U CN201020250446U CN201875020U CN 201875020 U CN201875020 U CN 201875020U CN 2010202504467 U CN2010202504467 U CN 2010202504467U CN 201020250446 U CN201020250446 U CN 201020250446U CN 201875020 U CN201875020 U CN 201875020U
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- piston
- clutch booster
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- booster
- piston rod
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model provides a clutch booster, and relates to the external control technology field of clutches, the clutch booster is provided with an air pressure cylinder and a hydraulic cylinder connected along the same axis, a piston is disposed in the air pressure cylinder, one side of the piston is connected with an actuating rod, the other side of the piston is connected with a piston rod, a spring is disposed between one side of the piston and the air pressure cylinder, the piston rod inserts into the hydraulic cylinder, a control valve is disposed perpendicular to the hydraulic cylinder, the air pressure cylinder and the hydraulic cylinder of the clutch booster are constructed to be an integration; the hydraulic pressure cavity and the air pressure cavity are made from aluminum alloy materials. the external side surface of the air pressure cylinder is provided with a sensor and wear indicator installation hole and an air taking opening. The spring forms a self-adjusted clutch booster at one side of the piston rod. The spring forms a non-self-adjusted clutch booster at one side of the piston rod. The booster is used for heavy and light trucks, large and medium-sized buses and engineering machinery of hydraulic control air power boost type clutch systems.
Description
Technical field
The utility model 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 to provide power-assisted 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, one end of oil cylinder piston stretches in the cylinder and is connected with boosting piston, the front end of boosting piston is push rod fixedly, be set with main spring on the push rod, enter cylinder promotion boosting piston by air valve assembly control pressurized air power-assisted is provided.Traditional clutch booster cylinder block material adopts steel material to make, in use, steel material is easily by corrosion, cause cylinder hole inwall to lose circle and unsmooth, to such an extent as to excessive gap between casing wall and oil cylinder piston, cylinder piston, occurs, 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, make booster piston unbalance stress at work, 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 in cylinder hole inwall coated with resins to alleviate the corrosion phenomena generation in the prior art, but, motion along with 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 simple and reliable sensor and wear indicator be contained on the clutch booster, 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 prior art exists, the purpose of this utility model is to provide a kind of clutch booster, it can effectively solve booster cylinder body corrosion problem, make power-assisted oil cylinder and power-assisted cylinder have higher concentricity simultaneously, conveniently get gas and sensor installation and wear indicating device, prolong booster working life, improve the functional reliability of clutch booster assembly.
To achieve these goals, the technical solution of the utility model is:
Clutch booster, have the pneumatic cylinder and the oil hydraulic cylinder that connect along same axis, 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, the utility model clutch booster 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 prior art 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 utility model 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 utility model clutch booster of belt sensor and wear indicator mounting hole and air hatch;
Fig. 2 is the major component sectional view of the utility model self-regualting type clutch booster 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 utility model of belt sensor and wear indicator mounting hole and air hatch;
Fig. 4 is the right elevation of the utility model clutch booster Fig. 1;
Fig. 5 is the plan view of the utility model clutch booster of belt sensor and wear indicator mounting hole and air hatch not;
Fig. 6 is the major component sectional view of the utility model self-regualting type clutch booster 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 utility model of belt sensor and wear indicator mounting hole and air hatch not;
Fig. 8 is the right elevation of Fig. 5 of the utility model clutch booster 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 spring, 18. suction valves, 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 the utility model clutch booster.
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.The utility model clutch booster, have the pneumatic cylinder 1 and the oil hydraulic cylinder 21 that connect along same axis, 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, piston 5 opposite sides connect piston rod 11, has 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 communicated with atmosphere through relief opening 14; 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, and the other end is communicated with 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 is the utility model clutch booster of belt sensor and wear indicator mounting hole and air hatch not, this clutch booster can be the self-regualting type clutch booster as shown in Figure 6 also, 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, different clutch boosters is for the use of satisfying different automobile types and performance requirement.
Clutch booster hydraulic pressure cavity 21 and atmospheric pressure cavity 1 are aluminum alloy material, 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 and oil hydraulic cylinder 21 are Construction integration, can be disposable in the mill carry out the processing of boring mill to cylinder and oil cylinder, guarantee cylinder and oil cylinder axis with one heart, avoid 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, the hydraulic pressure installation here can be an oil gear, suction port 4 connects compressed air plant, when stepping on clutch, pressure liquid enters the hydraulic pressure cavity 9 of 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, operating bar 2 removes to promote the clutch friction plate device, meanwhile, the pressure liquid that enters 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 is through suction port 4, suction valve 18, compressed air channel 19 enters the atmospheric pressure cavity 10 of pneumatic cylinder 1, 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 the piston rod pad 12 and the 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.
The utility model clutch booster is useful on heavy truck, light truck, large and medium bus and the engineering machinery of hydraulic operation gas booster type clutch system.
Claims (4)
1. clutch booster, have the pneumatic cylinder and the oil hydraulic cylinder that connect along same axis, 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 it is characterized in that:
Clutch booster pneumatic cylinder and oil hydraulic cylinder are Construction integration;
Hydraulic pressure cavity and atmospheric pressure cavity are aluminum alloy material.
2. clutch booster according to claim 1 is characterized in that: the pneumatic cylinder outer side surface has sensor and wear indicator mounting hole and air hatch.
3. according to claim 1 or 2 described clutch boosters, it is characterized in that: spring constitutes the self-regualting type clutch booster at the piston rod side of piston.
4. clutch booster according to claim 1 and 2 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 |
|---|---|---|---|
| CN2010202504467U CN201875020U (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202504467U CN201875020U (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875020U true CN201875020U (en) | 2011-06-22 |
Family
ID=44162938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202504467U Expired - Fee Related CN201875020U (en) | 2010-07-07 | 2010-07-07 | Clutch booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875020U (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 |
-
2010
- 2010-07-07 CN CN2010202504467U patent/CN201875020U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20170707 |