CN109555795A - Clutch servo-cylinder and on-off control mechanism - Google Patents
Clutch servo-cylinder and on-off control mechanism Download PDFInfo
- Publication number
- CN109555795A CN109555795A CN201710877065.8A CN201710877065A CN109555795A CN 109555795 A CN109555795 A CN 109555795A CN 201710877065 A CN201710877065 A CN 201710877065A CN 109555795 A CN109555795 A CN 109555795A
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- Prior art keywords
- cylinder
- clutch
- rodless cavity
- rod chamber
- valve
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 238000013022 venting Methods 0.000 claims abstract description 12
- 239000011148 porous material Substances 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 9
- 230000033001 locomotion Effects 0.000 abstract description 7
- 230000008439 repair process Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D48/04—Control by fluid pressure providing power assistance
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0209—Control by fluid pressure characterised by fluid valves having control pistons, e.g. spools
-
- 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
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0257—Hydraulic circuit layouts, i.e. details of hydraulic circuit elements or the arrangement thereof
- F16D2048/0263—Passive valves between pressure source and actuating cylinder, e.g. check valves or throttle valves
Abstract
The present invention relates to clutch servo-cylinder and on-off control mechanisms, to solve the problems, such as that existing clutch servo-cylinder can not mechanically make clutch keep discrete state.Wherein clutch servo-cylinder includes cylinder body and piston, the cylinder body includes rodless cavity and rod chamber, the rodless cavity is equipped with the air inlet for connecting with intake solenoid valve, the rod chamber is equipped with the exhaust outlet for connecting with venting solenoid valve, the rod chamber is additionally provided with the intercommunicating pore for communicating with atmosphere, and the one-way valve structures that can be only connected from rod chamber to rodless cavity are equipped between the rod chamber and rodless cavity.By there is the one-way valve structures that can be only connected from rod chamber to rodless cavity being arranged between intercommunicating pore and rod cavity and rodless cavity, when use, pass through artificial reciprocating movement piston, high pressure gas will be full of in air inlet side, the separation of clutch in the case of guarantee solenoid valve apparatus failure, it is easy to operate, it is easy to repair.
Description
Technical field
The present invention relates to clutch servo-cylinder and on-off control mechanisms.
Background technique
Clutch system is a ring important in automotive power transmission system, carries power transmitting, cuts off, limiting overload,
Convenient for a variety of effects such as gear shift.Clutch combines and the ride comfort of separation process directly influences feeling for taking, and clutch manipulates machine
Structure is directly related with the driving experience of driver, is related to passenger and driver and experiences to the quality of automobile.Clutch is divided into substantially
Manually and automatically two big form, in manual gear vehicle, driver tramples clutch pedal, passes through mechanical drag-line, hydraulic, pneumatic shape
Movement is passed to clutch push rod by formula, completes clutch action；In automatic catch vehicle, clutch for clutch control form has electro-hydraulic valve, gas
Pressure electromagnetic valve, the forms such as electric pushrod, control unit automatically control clutch action according to functional requirement, do not need artificially to manipulate dynamic
It participates in, greatly reduces driver behavior intensity.
Typical on-off control mechanism includes clutch servo-cylinder (i.e. clutch slave cylinder), and clutch servo-cylinder includes cylinder body, cylinder body
Interior to be equipped with piston, the side of piston is connected with push rod, so that cylinder body is divided into rod chamber and rodless cavity, rod chamber is equipped with exhaust outlet,
Rodless cavity is equipped with air inlet；Push rod is connected with connecting lever, and connecting lever drives Engaging-and-disengaging bearing to act, realizes the combination of clutch by shift fork
And separation.For manual clutch, the piston of clutch servo-cylinder is by the clutch connecting with clutch pedal in most cases
Main pump driving；For automatic clutch, the piston of clutch servo-cylinder is usually to rely on the solenoid valve control, such as application publication number to be
104632940 A of CN, entitled " electric-controlled pneumatic type clutch control system and control method " Chinese patent application in disclose
A kind of on-off control mechanism, structure is as shown in Figure 1, be provided with air inlet and exhaust outlet on clutch servo-cylinder 1, gas receiver 20
It is connected by tracheae and intake solenoid valve 9 with the air inlet of clutch servo-cylinder 1, the exhaust outlet on clutch servo-cylinder 1 and electricity of deflating
Magnet valve 11 is connected.When work, the movement of intake solenoid valve 9 and venting solenoid valve 11 is controlled by electronic control unit ECU 21,
Realize the combination and separation of clutch.
But in vehicle use and maintenance process, the feelings that solenoid valve apparatus failure occurs and can not be connected are encountered sometimes
Condition, or the case where not making clutch keep discrete state by solenoid valve is needed, since existing clutch servo-cylinder only can
By solenoid-driven, therefore existing clutch servo-cylinder is unable to satisfy action request.
Summary of the invention
The object of the present invention is to provide a kind of clutch servo-cylinder and on-off control mechanisms, to solve existing clutch servo-cylinder
The problem of can not mechanically making clutch keep discrete state.
To achieve the above object, the present invention in clutch servo-cylinder the technical solution adopted is that:
1. clutch servo-cylinder of scheme, including cylinder body and piston, the cylinder body include rodless cavity and rod chamber, and the rodless cavity is set
There is the air inlet for connecting with intake solenoid valve, the rod chamber is equipped with the exhaust outlet for connecting with venting solenoid valve, institute
It states rod chamber and is additionally provided with intercommunicating pore for communicating with atmosphere, being equipped between the rod chamber and rodless cavity only can be by rod chamber
The one-way valve structures be connected to rodless cavity.
The utility model has the advantages that by thering is what is be arranged between intercommunicating pore and rod cavity and rodless cavity can only be led from rod chamber to rodless cavity
Logical one-way valve structures, in use, will be full of high pressure gas in air inlet side by artificial reciprocating movement piston, guarantee electromagnetism
The separation of clutch, easy to operate in the case of valve apparatus failure, easy to repair.
The piston of clutch servo-cylinder is arranged in the clutch servo-cylinder according to scheme 1 of scheme 2., the one-way valve structures
On.One-way valve structures are compact-sized by the way of built-in, are convenient for modular assembly.
The clutch servo-cylinder according to scheme 2 of scheme 3., the one-way valve structures are ball valve form.
The clutch servo-cylinder according to scheme 3 of scheme 4., the one-way valve structures include the axial direction being arranged on piston
Through-hole and the valve ball being arranged in axially extending bore, the axially extending bore are equipped with the valve being adapted to valve ball close to one end of rod chamber
The side of seat, the close rodless cavity of valve ball is equipped with valve ball reset spring.
The clutch servo-cylinder according to scheme 3 of scheme 5., the one-way valve structures be equipped with two at more than, everywhere unidirectionally
Valve arrangement is evenly arranged around the axis of piston.
The clutch servo-cylinder according to any one of scheme 1-5 of scheme 6., the rodless cavity are equipped with manual charge and discharge
Gas check valve.Manual inflation/deflation check valve can play auxiliary control action, keep maintenance more convenient.
The clutch servo-cylinder according to any one of scheme 1-5 of scheme 7., the rodless cavity is interior to be equipped with for driving
The release bearing of dynamic clutch is contacted with diaphragm spring to eliminate the pre-compressed spring of the free clearance of clutch.
On-off control mechanism in the present invention the technical solution adopted is that:
1. on-off control mechanism of scheme, including clutch servo-cylinder, clutch servo-cylinder include cylinder body and piston, and the cylinder body includes
Rodless cavity and rod chamber, the rodless cavity are equipped with air inlet, and the rod chamber is equipped with exhaust outlet, and the air inlet is connected with air inlet
Solenoid valve, the rodless cavity are connected with venting solenoid valve, and the rod chamber is additionally provided with the intercommunicating pore for communicating with atmosphere, described
The one-way valve structures that can be only connected from rod chamber to rodless cavity are equipped between rod chamber and rodless cavity.
The work of clutch servo-cylinder is arranged in the on-off control mechanism according to scheme 1 of scheme 2., the one-way valve structures
Beyond the Great Wall.
The on-off control mechanism according to scheme 2 of scheme 3., the one-way valve structures are ball valve form.
The on-off control mechanism according to scheme 3 of scheme 4., the one-way valve structures include the axis being arranged on piston
To through-hole and the valve ball being arranged in axially extending bore, the axially extending bore is equipped with the valve being adapted to valve ball close to one end of rod chamber
The side of seat, the close rodless cavity of valve ball is equipped with valve ball reset spring.
The on-off control mechanism according to scheme 3 of scheme 5., it is single everywhere more than the one-way valve structures are equipped at two
Axis to valve arrangement around piston is evenly arranged.
The on-off control mechanism according to any one of scheme 1-5 of scheme 6., the rodless cavity is equipped with to be filled manually
Deflation check valve.
The on-off control mechanism according to any one of scheme 1-5 of scheme 7., interior be equipped with of the rodless cavity are used for
The release bearing of driving clutch is contacted with diaphragm spring to eliminate the pre-compressed spring of the free clearance of clutch.
The on-off control mechanism according to any one of scheme 1-5 of scheme 8., the intake solenoid valve and gas source
Between or intake solenoid valve and air inlet between be equipped with breather check valve for preventing gas backstreaming.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of on-off control mechanism in the prior art；
Fig. 2 is the schematic diagram of the embodiment one of on-off control mechanism in the present invention；
Fig. 3 is the partial enlarged view in Fig. 2 at piston check valve；
Fig. 4 is the schematic diagram of the embodiment two of on-off control mechanism in the present invention；
Fig. 5 is the schematic diagram of the embodiment three of on-off control mechanism in the present invention.
The corresponding title of each appended drawing reference in figure are as follows: 1- clutch servo-cylinder, 2- piston, 3- push rod, 4- shift fork, 5- swing arm,
6- pre-compressed spring, 7- displacement sensor, 8- piston check valve, 9- intake solenoid valve, 10- breather check valve, 11- deflation electromagnetism
Valve, the manual inflation/deflation check valve of 13-, 14- intercommunicating pore, 15- clutch, 16- diaphragm spring, 17- release bearing, 18- air inlet,
The external check valve of 19-, 20- gas receiver, 21- electronic control unit ECU, 22- axially extending bore, 23- valve ball, 24- valve ball reset bullet
Spring, 25- valve pocket.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
One embodiment of on-off control mechanism is as shown in Fig. 2-Fig. 3 in the present invention, including clutch servo-cylinder 1 and clutch
The connected push rod 3 of the piston 2 of servo-cylinder 1, the shift fork 4 being hingedly arranged and the swing arm 5 acted for shift fork 4, push rod 3 and work
The cylinder body of clutch servo-cylinder 1 is divided into rod chamber and rodless cavity by plug 2, rodless cavity be equipped with for connect with intake solenoid valve 9 into
Port, rod chamber are equipped with the exhaust outlet for connecting with venting solenoid valve 11.The structure of push rod 3, shift fork 4 and swing arm 5 with it is existing
Technology is identical, is no longer described in detail herein.
The air inlet side of the clutch servo-cylinder 1 of the on-off control mechanism is parallel with two intake solenoid valves 9, clutch just
Beginning separation phase controls each intake solenoid valve 9 while opening, and realization quickly propels, and improves response speed；Clutch servo-cylinder 1
Latter stage separation phase only opens an intake solenoid valve 9, and release bearing 17 promotes at a slow speed, avoided pushing away, and guarantees clutch film
The reliability of flat spring 16.The air inlet side of intake solenoid valve 9 is additionally provided with breather check valve 10, gas can be prevented reversely to be discharged,
Be conducive to improve reliability.
Two venting solenoid valves are parallel between the exhaust side and air inlet side of the clutch servo-cylinder 1 of on-off control mechanism
11, before clutch combines, i.e., in when combining the last stage, controls each venting solenoid valve 11 while opening, air inlet side and exhaust side
Connection, 16 return of diaphragm spring of clutch is reversed to push release bearing 17, pushes 2 return of piston by swing arm 5, push rod 3,
Gas is discharged from gas vent.Since two venting solenoid valves 11 open simultaneously, air pressure is reduced rapidly, and release bearing 17 can be quick
Return improves response speed；The combination stage of clutch, only opens a venting solenoid valve 11, and release bearing 17 returns at a slow speed
Position, clutch smooth and steady combine.
The exhaust side of the clutch servo-cylinder 1 is equipped with the intercommunicating pore 14 for communicating with atmosphere, the piston of clutch servo-cylinder 1
Piston check valve 8 is provided on 2, piston check valve 8 forms the one-way valve structures that can be only connected from rod chamber to rodless cavity.It should
One-way valve structures include fixed valve pocket 25 on the piston 2, and the inner hole of valve pocket 25 forms axially extending bore 22 on the piston 2, axial
Valve ball 23 is equipped in through-hole 22, the axially extending bore 22 is equipped with the valve seat being adapted to valve ball 23, valve ball close to one end of rod chamber
Close rodless cavity side be equipped with valve ball reset spring 24.In the feelings that intake solenoid valve 9 and venting solenoid valve 11 do not turn on
It under condition, is acted by positions such as manual drive push rod 3, swing arms 5, is able to drive the reciprocating motion of movable piston 2, it will in air inlet side
Full of high pressure gas, clutch push rod 3 pushes exhaust side to, guarantees the separation of clutch in the case of solenoid valve apparatus failure.Toward resurrection
During piston 2, gas is to enter rodless cavity by intercommunicating pore 14, can be in order to avoid clutch servo-cylinder 1 is contaminated
Air filtration structure is set at intercommunicating pore 14.
The air inlet side of the clutch servo-cylinder 1 is equipped with manual inflation/deflation check valve 13, can be realized and inflates and keep manually
Inflated condition, so that clutch keeps separation；Bonding state is recovered to if necessary to clutch, to manual inflation/deflation check valve 13
Spool pressure, manually control manual inflation/deflation check valve 13 and open and carry out manual exhaust.Pass through manual inflation/deflation check valve 13
The auxiliary that can be realized clutch servo-cylinder 1 manually controls.
The air inlet side of clutch servo-cylinder 1 is additionally provided with pre-compressed spring 6 between piston 2 and cylinder body, and pre-compressed spring 6 can generate
The precompression for pushing the release bearing 17 of clutch to act, eliminates oneself between the release bearing 17 of clutch and diaphragm spring 16
By gap.In this way, the release bearing 17 of clutch can synchronously follow movement when the piston 2 of clutch servo-cylinder 1 acts, make point
It is consistent with the action relationships of clutch operating mechanism to hold 17 off axis.Direct acting component of the push rod 3 as clutch operating mechanism, it is right
It should be equipped with displacement sensor 7, displacement sensor 7 is capable of the state of real time reaction clutch operating mechanism, while also can be anti-
The motion state of clutch should be gone out, laid the foundation for the stroke control of clutch.
The embodiment two of the clutch stroke control method of on-off control mechanism is as shown in figure 4, with embodiment 1 in the present invention
The difference is that piston check valve 8 is valve plate-type structure in the present embodiment, valve block is hingedly on the piston 2 or along piston
Axially it is movably arranged on piston.
The embodiment three of the clutch stroke control method of on-off control mechanism is as shown in figure 5, with embodiment 1 in the present invention
The difference is that the one-way valve structures being connected between rod chamber and rodless cavity in the present embodiment are not disposed on piston, and
Be to be arranged in outside the cylinder body of clutch servo-cylinder 1, form external check valve 19, by piping connection rod chamber and rodless cavity it
Between.
In other embodiments of the invention, the one-way valve structures being connected between rod chamber and rodless cavity also can be set
More than at two, such as it is arranged at two, one-way valve structures are evenly arranged around the axis of piston at two.
The embodiment of clutch servo-cylinder, that is, any of the above-described on-off control mechanism clutch as described in the examples in the present invention
Servo-cylinder, details are not described herein again for specific structure.
Claims (10)
1. clutch servo-cylinder, including cylinder body and piston, the cylinder body includes rodless cavity and rod chamber, and the rodless cavity is equipped with and is used for
The air inlet connecting with intake solenoid valve, the rod chamber are equipped with the exhaust outlet for connecting with venting solenoid valve, and feature exists
In: the rod chamber is additionally provided with the intercommunicating pore for communicating with atmosphere, and being equipped between the rod chamber and rodless cavity only can be by
The one-way valve structures that rod chamber is connected to rodless cavity.
2. clutch servo-cylinder according to claim 1, it is characterised in that: the one-way valve structures are arranged in clutch servo-cylinder
Piston on.
3. clutch servo-cylinder according to claim 2, it is characterised in that: the one-way valve structures are ball valve form.
4. clutch servo-cylinder according to claim 3, it is characterised in that: the one-way valve structures include being arranged on piston
Axially extending bore and the valve ball that is arranged in axially extending bore, the axially extending bore be equipped with close to one end of rod chamber and be adapted to valve ball
Valve seat, the side of the close rodless cavity of valve ball is equipped with valve ball reset spring.
5. clutch servo-cylinder according to claim 3, it is characterised in that: more than the one-way valve structures are equipped at two, respectively
Place's one-way valve structures are evenly arranged around the axis of piston.
6. clutch servo-cylinder described in any one according to claim 1-5, it is characterised in that: the rodless cavity is equipped with hand
Dynamic inflation/deflation check valve.
7. clutch servo-cylinder described in any one according to claim 1-5, it is characterised in that: be equipped in the rodless cavity
For driving the release bearing of clutch to contact with diaphragm spring to eliminate the pre-compressed spring of the free clearance of clutch.
8. on-off control mechanism, including clutch servo-cylinder, clutch servo-cylinder includes cylinder body and piston, and the cylinder body includes rodless cavity
And rod chamber, the rodless cavity are equipped with air inlet, the rod chamber is equipped with exhaust outlet, and the air inlet is connected with air inlet electromagnetism
Valve, the rodless cavity are connected with venting solenoid valve, it is characterised in that: the rod chamber is additionally provided with the connection for communicating with atmosphere
Hole is equipped with the one-way valve structures that can be only connected from rod chamber to rodless cavity between the rod chamber and rodless cavity.
9. on-off control mechanism according to claim 8, it is characterised in that: the one-way valve structures are arranged in clutch power-assisted
On the piston of cylinder.
10. on-off control mechanism according to claim 9, it is characterised in that: the one-way valve structures are ball valve form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877065.8A CN109555795B (en) | 2017-09-25 | Clutch booster cylinder and clutch operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710877065.8A CN109555795B (en) | 2017-09-25 | Clutch booster cylinder and clutch operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109555795A true CN109555795A (en) | 2019-04-02 |
| CN109555795B CN109555795B (en) | 2024-04-26 |
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| CN111871017A (en) * | 2020-07-14 | 2020-11-03 | 河北鼎康粮油有限公司 | Production of ground sesame seed oil is with deposiing device |
| CN114704632A (en) * | 2022-04-14 | 2022-07-05 | 一汽解放汽车有限公司 | Mechanical automatic transmission clutch execution system and vehicle |
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