CN201851524U - Clutch booster with gear shifting control valve - Google Patents
Clutch booster with gear shifting control valve Download PDFInfo
- Publication number
- CN201851524U CN201851524U CN2010205574546U CN201020557454U CN201851524U CN 201851524 U CN201851524 U CN 201851524U CN 2010205574546 U CN2010205574546 U CN 2010205574546U CN 201020557454 U CN201020557454 U CN 201020557454U CN 201851524 U CN201851524 U CN 201851524U
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- Prior art keywords
- valve
- piston
- clutch booster
- cylinder
- kickdown
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- Expired - Fee Related
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a clutch booster with a gear shifting control valve, which comprises a casing, an air cylinder and a gear shifting control valve, wherein the air cylinder is fixedly connected with the casing, an oil cylinder is arranged in the casing, an oil cylinder piston is arranged in the oil cylinder, a linkage rod is arranged in the gear shifting control valve, one end of the linkage rod penetrates into the air cylinder to be dynamically connected with a large piston of the air cylinder, the other end of the linkage rod passes into the gear shifting control valve, the gear shifting control valve comprises a valve body, one end of the valve body is connected with a regulation sleeve, the other end of the valve body is fixedly connected with the casing, and a piston assembly which is used for controlling the inlet and the outlet of compressed air and is arranged on the linkage rod is arranged in the valve body. The clutch booster has the advantages of simple structure and ingenious design, the damage to the gear shifting control valve caused by dimension deflection of the stroke of the clutch booster during installation is prevented, meanwhile, the processing difficulty of the oil cylinder piston is also reduced, the gas in the oil cylinder can be exhausted favorably through the position arrangement of exhaust holes, and the safety performance of the clutch booster is improved.
Description
Technical field
The utility model relates to a kind of power assisting device of automobile clutch, particularly a kind of cylinder front-located mode band kickdown valve clutch booster that is used for automobile.
Background technique
The utility model patent that a kind of name is called " a kind of automatic clutch booster " is disclosed in CN201184380, it comprises housing, the cylinder of fixedlying connected with housing, and the cylinder piston in the cylinder, set up the kickdown valve of fixedlying connected at described housing with the joint of described cylinder, one end of the connecting rod that is provided with in the described kickdown valve passes described housing, described cylinder dynamically is connected with described cylinder piston, such automobile clutch booster is rational in infrastructure, the preceding odd-side gearshift of energy time-delay interlock gearbox, easy to use, reliably, and the mechanism of having simplified on-off control mechanism.But such structure is deposited following deficiency:
1. in manufacture process, because there is deviation in the actual size when theoretical design and installation size and entrucking, caused kickdown valve not reach usage requirement, in use can cause between shifting block on the continuous motion stem and the outer cover causing damage because of being subjected to impacting.
2. in order to prevent that pressurized gas in the cylinder from leaking the string of oil cylinder or in-oil cylinder pressure oil leaks the string of cylinder, be provided with two y-type seal rings in the termination of oil cylinder piston, such structure makes that when processing, difficulty of processing is bigger.
3. because the exhaust bolt in the oil cylinder is arranged on the end of housing away from cylinder, when booster is installed, booster has certain angle of inclination to the exhaust bolt direction, causes the oil in the oil cylinder to tilt to the exhaust port direction, so just is unfavorable for getting rid of when installing the gas in the oil cylinder.
The model utility content
The band kickdown valve clutch booster to the infringement of kickdown valve of the purpose of this utility model with regard to providing that a kind of size deviation that can prevent that clutch booster stroke occurs owing to installing causes.
The purpose of this utility model is to realize by such technological scheme, a kind of band kickdown valve clutch booster, comprise housing, cylinder of fixedlying connected and kickdown valve with housing, in housing, be provided with oil cylinder, in oil cylinder, be provided with oil cylinder piston, in kickdown valve, be provided with continuous motion stem, described continuous motion stem one end penetrates in the cylinder and dynamically is connected with the cylinder big piston, the other end penetrates in the kickdown valve, and described kickdown valve comprises valve body, and an end of described valve body is connected with adjustment sleeve, the other end is fixedlyed connected with housing, is provided with to be used to control the pressurized air turnover and to be arranged on piston assembly on the continuous motion stem in valve body.
Further, described valve body is provided with suction port, air supply opening and relief opening, and described suction port is between air supply opening and relief opening, and the middle part of the inwall of valve body is provided with seal boss.
Further, described piston assembly: comprise from the connecting rod termination to the cylinder direction being successively set on piston, valve assembly, guide sleeve A and supporting sleeve on the continuous motion stem, described being provided with in piston embraced spring, described armful of spring passes through screw, the described valve return spring that in valve assembly, is provided with, described valve return spring one end withstands on the valve assembly interior edge face, the other end withstands on the end face of guide sleeve A, another end face of described guide sleeve A contacts with an end face of supporting sleeve, the described rectangular seal that is provided with in supporting base; Described valve assembly comprises valve guiding partly, describedly partly is set with guide sleeve B in the valve guiding, and described guide sleeve B comprises guiding partly, described the valve guiding partly and guiding be provided with y-type seal ring I between partly; Describedly on valve assembly and end face that piston contacts, establish
PutSealing gasket is arranged; Described seal boss and suction port are all between piston and valve assembly.
In order to prevent that the dust in the atmosphere from entering in valve body, described relief opening is provided with dust-proof cover, is provided with unidirectional rubber dustproof sheet in dust-proof cover, described dust-proof cover by screw on valve body.
In order to prevent that pressurized gas from the slot leakage between valve body and the adjustment sleeve, are provided with seal washer between described valve body and the adjustment sleeve.
Described oil cylinder inner wall at band kickdown valve clutch booster is provided with first step, and described this first step is provided with supporting ring near housing and cylinder connecting end in first step, be provided with the O RunddichtringO in the supporting ring inboard.
Described oil cylinder inner wall next-door neighbour first step at band kickdown valve clutch booster is provided with second step, and the described second step degree of depth is lower than first step, is provided with the y-type seal ring II in described second step.
The described end face that contacts with oil cylinder piston on y-type seal ring II is provided with groove, and wherein, the purpose that groove is set is for the lubricant oil of packing in groove, plays the effect of lubricated oil cylinder piston.
In order to be beneficial to the air scavenge in the oil cylinder, described housing is provided with exhaust bolt, and described exhaust bolt is positioned at the connecting end of housing and cylinder, is in the peak in the oil pocket when promptly clutch booster level is installed.
Owing to adopted technique scheme, the utlity model has simple in structure, design advantage cleverly, it has not only prevented the infringement to kickdown valve that clutch booster stroke occurs owing to installing size deviation causes, and has also reduced the difficulty of processing of oil cylinder piston, oil cylinder inner wall simultaneously; The setting of exhaust port position has been beneficial to in-oil cylinder air scavenge, has improved the Safety performance of booster.
Description of drawings
Description of drawings of the present utility model is as follows:
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail; but the utility model is not limited to these mode of executions; any on the present embodiment essence spirit improvement or substitute, still belong to the utility model claim scope required for protection.
Embodiment 1: as shown in Figure 1, a kind of band kickdown valve clutch booster, comprise housing 1, the cylinder 2 and the kickdown valve of fixedlying connected with housing 1, in housing 1, be provided with oil cylinder 3, in oil cylinder 3, be provided with oil cylinder piston 4, in kickdown valve, be provided with continuous motion stem 5, described continuous motion stem 6 one ends penetrate in the cylinder 2 and dynamically are connected with the cylinder big piston, the other end penetrates in the kickdown valve, and described kickdown valve comprises valve body 6, and an end of described valve body 6 is connected with adjustment sleeve 7, the other end is fixedlyed connected with housing 1, is provided with to be used to control the pressurized air turnover and to be arranged on piston assembly on the continuous motion stem 5 in valve body 6.
Described valve body 6 is provided with suction port 8, air supply opening 9 and relief opening 10, and described suction port 8 is between air supply opening 9 and relief opening 10, and the middle part of the inwall of valve body 6 is provided with seal boss 11.
Described piston assembly: comprise from connecting rod 5 terminations to cylinder 2 directions being successively set on piston 12 on the continuous motion stem 5, valve assembly 13, guide sleeve A14 and supporting sleeve 15, described being provided with in piston 12 embraced spring 16, described armful of spring 16 is fixing by screw 17, the described valve return spring 18 that in valve assembly 13, is provided with, described valve return spring 18 1 ends withstand on valve assembly 13 interior edge faces, the other end withstands on the end face of guide sleeve A14, another end face of described guide sleeve A14 contacts with an end face of supporting sleeve 15, the described rectangular seal 19 that is provided with in supporting base 15; Described valve assembly comprises valve guiding partly 33, describedly partly 33 is set with guide sleeve B20 in the valve guiding, and described guide sleeve B comprises guiding partly 34, described the valve guiding partly 33 with guiding part 34 between be provided with y-type seal ring I21; The end face that described valve assembly 13 contacts with piston 12 is provided with sealing gasket 22; Described seal boss 11 and suction port 8 are all between piston 12 and valve assembly 13.
The utility model is like this work: during this product loading, clutch booster push rod and the cylinder piston that is attached thereto should be compressed into cylinder Xmm(and decide according to each automobile factory's configuration) as the working stroke of clutch booster.When the cylinder piston 32 of clutch booster was in original position and does not move, the suction port 8 in the kickdown valve was not communicated with air supply opening 9, and relief opening 10 directly communicates with atmosphere; When driver is stepped on clutch pedal, brake fluid in the lubricating cup is built pressure through the clutch master cylinder, pressure oil enters clutch booster oil cylinder by oil pipe, the clutch booster advances, outlet valve is subjected to oil pressure control cylinder inner chamber to begin air inlet, the cylinder piston 32 of clutch booster pressurized immediately moves, when the bulb push rod begins the action of clutch power-assisted, driving piston 12 on the continuous motion stem 5 moves to cylinder 2 directions, piston 12 promotes valve assembly 13 and closes the exhaust passage, and compression valve return spring 18 has been opened gas-entered passageway, and pressurized gas are by suction port 8, gas-entered passageway enters in the valve body 6, by air supply opening 9 compressed air delivery is carried out cylinder to gearbox again, start working.
After the shift transmission operation is finished, driver unclamps clutch pedal, master cylinder, pipeline, the in-oil cylinder pressure oil release of clutch booster, the clutch booster advances, outlet valve is subjected to oil pressure control cylinder inner chamber to begin exhaust, push rod, cylinder piston 32 begins return under the clutch reaction force, continuous motion stem 5 drives piston 12 to moving away from cylinder 2 directions, valve assembly 13 is return under the effect of valve return spring 18, this moment, valve assembly 13 was closed gas-entered passageway, open exhaust passage 10, gearbox is carried out cylinder, connect tracheae, pressurized air row in the air supply opening finishes a work cycle to atmosphere.Abrasion along with clutch plate, clutch booster piston 32 initialization positions can take place one by one to housing direction, slowly move, continuous motion stem drives piston 12 initialization positions and takes place in the other direction one by one to cylinder, slowly move and impact with adjustment sleeve 7, at this moment the power of holding tightly of embracing spring 16 in the piston 12 should be greater than the power of opening valve 22, less than causing clutch booster piston 32 one by one to housing direction because of the clutch-plate abrasion, slowly mobile power, relative displacement takes place with piston 12 in continuous motion stem 5, and at this moment adjustment sleeve 7 has played spacing, automatically adjust the effect of piston 12 positions.
Wherein, embrace spring 16 structures of design piston 12 in have played the effect of adjustment piston initialization position automatically after the clutch-plate abrasion.
Described relief opening 10 is provided with dust-proof cover 23, is provided with unidirectional rubber dustproof sheet 35 in dust-proof cover 23, described dust-proof cover 23 by screw on valve body 6.
Be provided with seal ring 24 between described valve body 6 and the adjustment sleeve 7, doing like this is in order to prevent that pressurized gas are from the slot leakage between valve body 6 and the adjustment sleeve 7.
Described oil cylinder 3 inwalls at band kickdown valve clutch booster are provided with first step 25, and described this first step 25 is provided with supporting ring 26 near housing 1 and cylinder 2 connecting ends in first step 25, be provided with O RunddichtringO 27 in supporting ring 26 inboards.
Described oil cylinder 3 inwalls next-door neighbour first step 25 at band kickdown valve clutch booster is provided with second step 28, and described second step 28 degree of depth are lower than first step 25, are provided with y-type seal ring II 29 in described second step 28.
The described end face that contacts with oil cylinder piston 4 on y-type seal ring II 29 is provided with groove 30, and wherein, the purpose that groove 30 is set is in order to put into lubricant oil in groove 30, to play the effect of lubricated oil cylinder piston 4.
Described housing 1 is provided with exhaust bolt 31, and described exhaust bolt 31 is positioned at the connecting end of housing 1 and cylinder 2.
Claims (9)
1. be with kickdown valve clutch booster for one kind, comprise housing (1), the cylinder (2) and the kickdown valve of fixedlying connected with housing (1), in housing (1), be provided with oil cylinder (3), in oil cylinder (3), be provided with oil cylinder piston (4), in kickdown valve, be provided with continuous motion stem (5), described continuous motion stem (6) one ends penetrate in the cylinder (2) and dynamically are connected with the cylinder big piston, the other end penetrates in the kickdown valve, it is characterized in that: described kickdown valve comprises valve body (6), one end of described valve body (6) is connected with adjustment sleeve (7), the other end is fixedlyed connected with housing (1), is provided with to be used to control the pressurized air turnover and to be arranged on piston assembly on the continuous motion stem (5) in valve body (6).
2. band kickdown valve clutch booster as claimed in claim 1, it is characterized in that: described valve body (6) is provided with suction port (8), air supply opening (9) and relief opening (10), described suction port (8) is positioned between air supply opening (9) and the relief opening (10), and the middle part of the inwall of valve body (6) is provided with seal boss (11).
3. band kickdown valve clutch booster as claimed in claim 2, it is characterized in that: described piston assembly: comprise from connecting rod (5) termination to cylinder (2) direction being successively set on piston (12) on the continuous motion stem (5), valve assembly (13), guide sleeve A(14) and supporting sleeve (15), described being provided with in piston (12) embraced spring (16), described armful of spring (16) is fixing by screw (17), the described valve return spring (18) that in valve assembly (13), is provided with, described valve return spring (18) one ends withstand on valve assembly (13) interior edge face, the other end withstands on guide sleeve A(14) end face on, described guide sleeve A(14) another end face contacts with an end face of supporting sleeve (15), the described rectangular seal (19) that is provided with in supporting base (15); Described valve assembly comprises valve guiding partly (33), described valve guiding partly (33) be set with guide sleeve B(20), described guide sleeve B comprises lead partly (34), and described the guiding at valve is provided with y-type seal ring I(21 between part (33) and the guiding part (34)); The end face that described valve assembly (13) contacts with piston (12) is provided with sealing gasket (22); Described seal boss (11) and suction port (8) all are positioned between piston (12) and the valve assembly (13).
4. band kickdown valve clutch booster as claimed in claim 3, it is characterized in that: described relief opening (10) is provided with dust-proof cover (23), in dust-proof cover (23), be provided with unidirectional rubber dustproof sheet (35), described dust-proof cover (23) by screw on valve body (6).
5. band kickdown valve clutch booster as claimed in claim 4 is characterized in that: be provided with seal washer (24) between described valve body (6) and the adjustment sleeve (7).
6. as any described band kickdown valve of the claim clutch booster of claim 1 to 5, it is characterized in that: described oil cylinder at the clutch booster (3) inwall is provided with first step (25), described this first step (25) is near housing (1) and cylinder (2) connecting end, in first step (25), be provided with supporting ring (26), be provided with O RunddichtringO (27) in supporting ring (26) inboard.
7. band kickdown valve clutch booster as claimed in claim 6, it is characterized in that: described oil cylinder at the clutch booster (3) inwall next-door neighbour's first step (25) is provided with second step (28), described second step (28) degree of depth is lower than first step (25), is provided with y-type seal ring II (29) in described second step (28).
8. band kickdown valve clutch booster as claimed in claim 7 is characterized in that: the described end face that upward contacts with oil cylinder piston (4) in y-type seal ring II (29) is provided with groove (30).
9. band kickdown valve clutch booster as claimed in claim 8, it is characterized in that: described housing (1) is provided with exhaust bolt (31), and described exhaust bolt (31) is positioned at the connecting end of housing (1) and cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205574546U CN201851524U (en) | 2010-10-12 | 2010-10-12 | Clutch booster with gear shifting control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205574546U CN201851524U (en) | 2010-10-12 | 2010-10-12 | Clutch booster with gear shifting control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851524U true CN201851524U (en) | 2011-06-01 |
Family
ID=44093916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205574546U Expired - Fee Related CN201851524U (en) | 2010-10-12 | 2010-10-12 | Clutch booster with gear shifting control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339419A (en) * | 2017-06-30 | 2017-11-10 | 武汉理工大学 | Two-position three way control valve for boosting cylinder for clutch |
-
2010
- 2010-10-12 CN CN2010205574546U patent/CN201851524U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339419A (en) * | 2017-06-30 | 2017-11-10 | 武汉理工大学 | Two-position three way control valve for boosting cylinder for clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20121012 |