CN201866133U - Clutch booster - Google Patents
Clutch booster Download PDFInfo
- Publication number
- CN201866133U CN201866133U CN2010202764106U CN201020276410U CN201866133U CN 201866133 U CN201866133 U CN 201866133U CN 2010202764106 U CN2010202764106 U CN 2010202764106U CN 201020276410 U CN201020276410 U CN 201020276410U CN 201866133 U CN201866133 U CN 201866133U
- Authority
- CN
- China
- Prior art keywords
- piston
- clutch booster
- hydraulic cylinder
- piston rod
- cylinder
- 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
Links
Images
Landscapes
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model provides a clutch booster which belongs to the technical field of external control of a clutch and comprises a pneumatic cylinder and a hydraulic cylinder connected with each other along the same axial line. A piston is arranged in the pneumatic cylinder, one side of the piston is connected with an actuating rod, and the other side is connected with a piston rod; a spring is arranged between one side of the piston and the pneumatic cylinder, and the piston rod is inserted into the hydraulic cylinder; the pneumatic cylinder and the hydraulic cylinder of the clutch booster adopt an integrated structure and are made of aluminum alloy; a control valve and the axial line of the hydraulic cylinder are arranged side by side; and a sealing ring between the piston rod and the hydraulic cylinder is arranged at the end of the piston rod. The spring forms a self-adjusting clutch booster at the piston rod side of the piston and forms a non-self-adjusting clutch booster at the actuating rod side of the piston. The clutch booster can be used for heavy/light-duty trucks, large/medium-sized passenger cars and engineering machinery with hydraulically-controlled and pneumatically-assisted 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.A kind of automobile clutch booster of notification number CN2011368157 ' ' the disclosed clutch booster of patent document, the cylinder that comprises cylinder shell and be fixedly connected on the cylinder shell front end, it is provided with the air inlet spool positioning seat that is fixed in the cavity and is positioned at air inlet spool one end, air inlet spool positioning seat one end opening, opening is nested with the air inlet spool and cooperates, and power assistant spring one end apical grafting boosting piston assembly, the other end apical grafting is on the end face that is fixedly connected with the oil cylinder housing of servo-cylinder; The end that push rod is connected with the boosting piston assembly is and the suitable ball head structure of boosting piston assembly to 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.
If the design of control valve can not effectively make between oil hydraulic cylinder and the pneumatic cylinder and realize seal isolation, be easy to make leakage of oil mutually, gas leakage between oil hydraulic cylinder and the pneumatic cylinder, cause clutch booster to lose efficacy.
Usually the seal ring between oil hydraulic cylinder and the piston rod is designed at the hydraulic cylinder port end,, cause the wearing and tearing of seal ring along with the extension of operating time, seal clearance can not get compensation, make the sealing effect between oil hydraulic cylinder and the pneumatic cylinder descend, cause leakage of oil, gas leakage, clutch booster was lost efficacy.
The technical problem that prior art exists has a strong impact on the operational safety of clutch booster, and then reduces the manoeuvring performance and the safety of vehicle, becomes the problem that needs the technician to solve.
The model utility content
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, effectively promote the sealing effect between oil hydraulic cylinder and the pneumatic cylinder, 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, have spring between piston one side and the pneumatic cylinder, piston rod inserts in the oil hydraulic cylinder, and wherein: clutch booster pneumatic cylinder and oil hydraulic cylinder are Construction integration; Oil hydraulic cylinder and pneumatic cylinder are aluminum alloy material; Control valve and hydraulic cylinder axis are set up in parallel; Seal ring between piston rod and the oil hydraulic cylinder is arranged on tailpiece of the piston rod.
Hydraulic pressure cavity is communicated with the control valve hydraulic pressure cavity, atmospheric pressure cavity is communicated with outlet valve during position, the control spool right side, sealing outlet valve and pushing tow are to the air inlet spool during position, a control spool left side, the air inlet spool is between compressed air inlet and compressed air channel, have Returnning spring between at the bottom of air inlet spool and the control valve bore, have Returnning spring between control spool and control valve seat.
Tailpiece of the piston rod has two seals circle at least, and this two seals circle is YX shape or y-shaped ring, and two seal ring lips all toward the outer side.
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; Control valve and oil hydraulic cylinder are taked parallel design arranged side by side, by the leakage problem between isolated oil hydraulic cylinder of the sealing of control spool and the pneumatic cylinder; The design of seal ring between oil hydraulic cylinder inwall and the piston rod on piston rod, be one interlock structure, and two seals circle lip is outside in the middle of making, and by wearing and tearing and the motion excursion that the both sides oil-air pressure comes the compensation sealing circle, has good Follow-up seal performance.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 clutch booster;
Fig. 2 is the right elevation of clutch booster Fig. 1;
Fig. 3 is the major component sectional view of self-regualting type clutch booster;
Fig. 4 is the major component sectional view of non-self-regualting type clutch booster.
Label in the accompanying drawing:
1. pneumatic cylinder, 2. operating bar, 3. liquid entering hole, 4. exhaust bolt, 5. piston, 6. spring, 7. seal ring, 8. seal ring, 9. hydraulic pressure cavity, 10. atmospheric pressure cavity, 11. piston rods, 12. hydraulic channels, 13. the control valve hydraulic pressure cavity, 14. outlet valves, 15. control spools, 16. Returnning springs, 17. Returnning spring, 18. air inlet spools, 19. compressed air inlet, 20. compressed air channel, 21. oil hydraulic cylinders, 22. control valve seats.
Embodiment
Be further described below in conjunction with the embodiment of Figure of description the utility model clutch booster.
This clutch booster can be the self-regualting type clutch booster as shown in Figure 3 also, also can be as shown in Figure 4 be non-self-regualting type clutch booster, shown in Figure 3 is the structure that the self-regualting type clutch booster omits operating bar 2 parts, and shown in Figure 4 is 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.
First kind of embodiment self-regualting type clutch booster in conjunction with clutch booster shown in 1,2,3 pairs of the Figure of description is that example is described further, and non-self-regualting type clutch booster working procedure is identical with principle shown in the accompanying drawing 4.
The external structure of clutch booster shown in the accompanying drawing 1, it has the pneumatic cylinder 1 and the oil hydraulic cylinder 21 of one with it, operating bar 2 stretches out from pneumatic cylinder 1, for connecting clutch component, clutch is controlled, oil hydraulic cylinder 21 ends have liquid entering hole 3, for connecting pressure liquid, be generally the high-voltage oil liquid that the vehicle oil pump provides, oil hydraulic cylinder 21 upsides are provided with exhaust bolt 4, can in the hydraulic pressure cavity 9 of oil hydraulic cylinder 21, leak when advancing air and discharge, avoid oil hydraulic cylinder 21 working efficiencies to reduce or inefficacy leaking the air that advances.
Accompanying drawing 2 is right elevations of Fig. 1, the position of liquid entering hole 3, exhaust bolt 4, oil hydraulic cylinder 21 and the pneumatic cylinder 1 of visible clutch end.
It shown in the accompanying drawing 3 sectional drawing of self-regualting type clutch booster, it has pneumatic cylinder 1 and the oil hydraulic cylinder 21 that connects along same axis, clutch booster pneumatic cylinder 1 and oil hydraulic cylinder 21 are Construction integration, can disposablely in the mill carry out the processing of boring mill to pneumatic cylinder 1 and oil hydraulic cylinder 21, guarantee pneumatic cylinder 1 and oil hydraulic cylinder 21 axis with one heart, efficiently solve the problem that the seal failure that piston 5 eccentric wears cause in use takes place.
Oil hydraulic cylinder 21 and pneumatic cylinder 1 adopt 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 and used ferrous materials to corrode the defective of the seal failure that causes easily in the prior art.
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, spring 6 constitutes the self-regualting type clutch booster at the piston rod side of piston, and spring 6 constitutes non-self-regualting type clutch booster in the operating bar side of piston.
Piston rod 11 inserts in the oil hydraulic cylinder 21, and wherein: control valve and oil hydraulic cylinder 21 axis are set up in parallel, and not only reduce the boundary dimension of clutch booster, also reduces the possibility that occurs oil and gas leakage between atmospheric pressure cavity 10 and the hydraulic pressure cavity 9 by the control valve approach as far as possible.Hydraulic pressure cavity 9 is communicated with control valve hydraulic pressure cavity 13, atmospheric pressure cavity 10 is communicated with outlet valve 14 during right of control spool 15, sealing outlet valve 14 and pushing tow are to air inlet spool 18 during control spool 15 left side, air inlet spool 18 is between compressed air inlet 19 and compressed air channel 20, have Returnning spring 17 between at the bottom of air inlet spool 18 and the control valve bore, control spool 15 and 22 of control valve seats have Returnning spring 16.
Piston rod 11 ends have two seals circle 8 at least, and this two seals circle 8 is YX shape or y-shaped ring, and two seal rings, 8 lips all toward the outer side.For example specifically be provided with in the accompanying drawing, seal ring 7 between piston rod 11 and the oil hydraulic cylinder 21 and seal ring 8 are arranged on piston rod 11 ends, the sealing of formation follow-up-type, the error that relative movement between piston rod 11 and the oil hydraulic cylinder 21 is produced compensates at any time, improves sealing effect.Piston rod 11 ends have four road seal rings, and wherein two outside seal rings 7 are rectangular seal, and middle two seal rings 8 are YX shape seal ring, and two YX shape seal rings, 8 lips toward the outer side, utilize the air pressure and the hydraulic pressure of seal ring both sides that the seal ring lip is opened, be adjacent to hydraulic pressure cavity 9 walls, guarantee sealing.
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, compressed air inlet 19 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 5 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 clutch device, meanwhile, because hydraulic pressure cavity 9 is communicated with control valve hydraulic pressure cavity 13, the pressure liquid that enters hydraulic pressure cavity 9 enters control valve hydraulic pressure cavity 13 by this passage, and the elastic force that promotion control spool 15 overcomes Returnning spring 16 is moved to the left, and the passage of outlet valve 14 is led in sealing, controlling spool 15 pushing tow air inlet spools 18 simultaneously is opened its elastic force that overcomes Returnning spring 17, pressurized air enters from compressed air inlet 19, enters pneumatic cylinder 1 promotion piston 5 by compressed air channel 20 and moves, and provides power-assisted by operating bar 2 for clutch.When letting the clutch be slipped, the pressure liquid that enters the hydraulic pressure cavity 9 of oil hydraulic cylinder 21 is discharged, simultaneously, also discharge with the pressure liquid in the control valve hydraulic pressure cavity 13 that hydraulic pressure cavity 9 is communicated with, the Returnning spring 16 that control spool 15 and control valve seat are 22 makes 15 right of control spools, and the Returnning spring 17 between at the bottom of air inlet spool 18 and the control valve bore is closed air inlet spool 18, and atmospheric pressure cavity 10 is communicated with outlet valve 14, make the pressurized air in the atmospheric pressure cavity 10 discharge, remove power-assisted through outlet valve 14.
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 (5)
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 piston one side and the pneumatic cylinder, piston rod inserts in the oil hydraulic cylinder, it is characterized in that:
Clutch booster pneumatic cylinder and oil hydraulic cylinder are Construction integration;
Oil hydraulic cylinder and pneumatic cylinder are aluminum alloy material;
Control valve and hydraulic cylinder axis are set up in parallel;
Seal ring between piston rod and the oil hydraulic cylinder is arranged on tailpiece of the piston rod.
2. clutch booster according to claim 1, it is characterized in that: hydraulic pressure cavity is communicated with the control valve hydraulic pressure cavity, atmospheric pressure cavity is communicated with outlet valve during position, the control spool right side, sealing outlet valve and pushing tow are to the air inlet spool during position, a control spool left side, the air inlet spool is between compressed air inlet and compressed air channel, have Returnning spring between at the bottom of air inlet spool and the control valve bore, have Returnning spring between control spool and control valve seat.
3. clutch booster according to claim 1 is characterized in that: tailpiece of the piston rod has two seals circle at least, and this two seals circle is YX shape or y-shaped ring, and two seal ring lips all toward the outer side.
4. according to claim 1 or 2 or 3 described clutch boosters, it is characterized in that: spring constitutes the self-regualting type clutch booster at the piston rod side of piston.
5. according to claim 1 or 2 or 3 described clutch boosters, it 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 |
|---|---|---|---|
| CN2010202764106U CN201866133U (en) | 2010-07-30 | 2010-07-30 | Clutch booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202764106U CN201866133U (en) | 2010-07-30 | 2010-07-30 | Clutch booster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866133U true CN201866133U (en) | 2011-06-15 |
Family
ID=44137289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202764106U Expired - Fee Related CN201866133U (en) | 2010-07-30 | 2010-07-30 | Clutch booster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866133U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102306A (en) * | 2020-01-15 | 2020-05-05 | 上海东风康斯博格莫尔斯控制系统有限公司 | Clutch booster |
-
2010
- 2010-07-30 CN CN2010202764106U patent/CN201866133U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102306A (en) * | 2020-01-15 | 2020-05-05 | 上海东风康斯博格莫尔斯控制系统有限公司 | Clutch booster |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103758723A (en) | Air pump of engineering machinery braking system | |
| CN102574517A (en) | Master cylinder assembly for balancing braking systems of an agricultural vehicle | |
| CN101858393B (en) | Clutch booster | |
| CN201866133U (en) | Clutch booster | |
| CN101934789B (en) | Hydraulic brake valve of full-hydraulic brake system in construction machinery | |
| CN204312579U (en) | With the integral type clutch booster of control valve | |
| CN102424042A (en) | Air booster pump structure | |
| CN104196920B (en) | Integrated clutch booster with control valve | |
| CN102079302B (en) | Air booster pump of engineering machinery brake system | |
| CN103148122A (en) | Clutch master pump and clutch assembly equipped with clutch master pump | |
| CN203214707U (en) | Clutch master pump and clutch assembly provided with same | |
| CN201120888Y (en) | Air boosting pump | |
| CN201875020U (en) | Clutch booster | |
| CN102862563A (en) | Automobile brake anti-failure three-control relay valve | |
| CN202320475U (en) | Steering power cylinder assembly for heavy-duty truck | |
| CN201484400U (en) | Gas cap liquid total pump | |
| CN101402358A (en) | Hydraulic reinforcement brake controller of automobile | |
| CN203702477U (en) | Air booster pump of engineering mechanical braking system | |
| CN202294757U (en) | Hydraulic master pump of automobile | |
| CN201424014Y (en) | ABS four-channel pressure regulator body | |
| CN205615506U (en) | Split type seal structure of loader thrust boosting pump piston core | |
| CN202579109U (en) | Air chamber cylinder for air booster pump | |
| CN201705838U (en) | Clutch booster | |
| CN211314923U (en) | Braking device for multi-axle vehicle | |
| CN217682126U (en) | Novel loader brake booster pump |
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: 20110615 Termination date: 20190730 |