CN109555795B - Clutch booster cylinder and clutch operating mechanism - Google Patents
Clutch booster cylinder and clutch operating mechanism Download PDFInfo
- Publication number
- CN109555795B CN109555795B CN201710877065.8A CN201710877065A CN109555795B CN 109555795 B CN109555795 B CN 109555795B CN 201710877065 A CN201710877065 A CN 201710877065A CN 109555795 B CN109555795 B CN 109555795B
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- clutch
- cavity
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- way valve
- piston
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000004891 communication Methods 0.000 claims abstract description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
Classifications
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- 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
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- 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
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to a clutch booster cylinder and a clutch control mechanism, which are used for solving the problem that the existing clutch booster cylinder can not keep a clutch in a separated state in a mechanical way. The clutch booster cylinder comprises a cylinder body and a piston, wherein the cylinder body comprises a rodless cavity and a rod cavity, the rodless cavity is provided with an air inlet used for being connected with an air inlet electromagnetic valve, the rod cavity is provided with an air outlet used for being connected with an air release electromagnetic valve, the rod cavity is further provided with a communication hole used for being communicated with the atmosphere, and a one-way valve structure which can be conducted from the rod cavity to the rodless cavity only is arranged between the rod cavity and the rodless cavity. Through there being the check valve structure that can only switch on to the rodless chamber by there being pole chamber and setting up between the rodless chamber, during the use, through artifical reciprocating piston, just can be full of high-pressure gas in the side of admitting air, the separation of clutch under the assurance solenoid valve electrical apparatus fault condition, convenient operation, the maintenance of being convenient for.
Description
Technical Field
The invention relates to a clutch booster cylinder and a clutch control mechanism.
Background
The clutch system is an important ring in the automobile power transmission system, and plays roles of power transmission, cutting off, overload limiting, gear shifting facilitating and the like. The smoothness of the clutch combining and separating process directly influences the riding feeling, and the clutch control mechanism is directly related to the driving feeling of a driver, so that the quality experience of passengers and the driver on the automobile is related. The clutch is basically divided into a manual mode and an automatic mode, and in a manual gear vehicle type, a driver steps on a clutch pedal, and the action is transmitted to a clutch push rod through a mechanical cable, hydraulic pressure and pneumatic mode to finish the clutch action; in the automatic transmission type, the clutch control mode is in the forms of an electric hydraulic valve, an air pressure electromagnetic valve, an electric push rod and the like, the control unit automatically controls the clutch action according to the function requirement, the participation of manual operation is not needed, and the driving operation intensity is greatly reduced.
The typical clutch control mechanism comprises a clutch booster cylinder (namely a clutch slave cylinder), wherein the clutch booster cylinder comprises a cylinder body, a piston is arranged in the cylinder body, one side of the piston is connected with a push rod, so that the cylinder body is divided into a rod cavity and a rodless cavity, the rod cavity is provided with an exhaust port, and the rodless cavity is provided with an air inlet; the push rod is connected with a crank arm, and the crank arm drives the clutch bearing to act through a shifting fork, so that the combination and separation of the clutch are realized. For a manual clutch, the piston of the clutch booster cylinder is driven by a clutch main pump connected with a clutch pedal in most cases; for an automatic clutch, a piston of a clutch booster cylinder is generally controlled by means of an electromagnetic valve, for example, a clutch control mechanism disclosed in a Chinese patent application with the application publication number of CN 104632940A and the name of an electric control pneumatic clutch control system and control method is structured as shown in fig. 1, an air inlet and an air outlet are arranged on the clutch booster cylinder 1, an air reservoir 20 is connected with the air inlet of the clutch booster cylinder 1 through an air pipe and an air inlet electromagnetic valve 9, and the air outlet on the clutch booster cylinder 1 is connected with an air outlet electromagnetic valve 11. In operation, the electronic control unit ECU 21 controls the actions of the air inlet electromagnetic valve 9 and the air outlet electromagnetic valve 11 to realize the combination and separation of the clutch.
However, in the use and maintenance process of the vehicle, the situation that the electromagnetic valve fails to conduct due to the failure of an electric appliance can be sometimes encountered, or the situation that the clutch is kept in a separated state without the electromagnetic valve is required, and the conventional clutch booster cylinder can only be driven by the electromagnetic valve, so that the conventional clutch booster cylinder cannot meet the action requirement.
Disclosure of Invention
The invention aims to provide a clutch booster cylinder and a clutch control mechanism, which are used for solving the problem that the existing clutch booster cylinder can not keep a clutch in a separated state in a mechanical way.
In order to achieve the above purpose, the clutch booster cylinder of the invention adopts the following technical scheme:
The scheme 1. Clutch helping hand jar, including cylinder body and piston, the cylinder body includes rodless chamber and has the pole chamber, the rodless chamber is equipped with the air inlet that is used for being connected with the air inlet solenoid valve, there is the pole chamber to be equipped with the gas vent that is used for being connected with the gassing solenoid valve, there is the pole chamber still to be equipped with be used for communicating with atmosphere the intercommunicating pore, be equipped with between pole chamber and the rodless chamber only by the one-way valve structure that has pole chamber to rodless chamber to switch on.
The beneficial effects are that: through there being the check valve structure that can only switch on to the rodless chamber by there being pole chamber and setting up between the rodless chamber, during the use, through artifical reciprocating piston, just can be full of high-pressure gas in the side of admitting air, the separation of clutch under the assurance solenoid valve electrical apparatus fault condition, convenient operation, the maintenance of being convenient for.
The clutch booster cylinder according to the scheme 1, wherein the one-way valve structure is arranged on a piston of the clutch booster cylinder. The check valve structure adopts a built-in mode and is compact in structure and convenient for modularized assembly.
Scheme 3. The clutch booster cylinder according to scheme 2, the check valve structure is in the form of a ball valve.
The clutch booster cylinder according to the scheme 4, wherein the one-way valve structure comprises an axial through hole arranged on the piston and a valve ball arranged in the axial through hole, one end, close to the rod cavity, of the axial through hole is provided with a valve seat matched with the valve ball, and one side, close to the rodless cavity, of the valve ball is provided with a valve ball reset spring.
And 5. The clutch booster cylinder according to the scheme 3, wherein the one-way valve structure is provided with more than two parts, and the one-way valve structures are uniformly arranged around the axis of the piston.
Scheme 6. The clutch booster cylinder according to any one of schemes 1-5, wherein the rodless cavity is provided with a manual inflation/deflation one-way valve. The manual air charging and discharging check valve can play an auxiliary control role, so that the maintenance is more convenient.
The clutch booster cylinder according to any one of the aspects 1 to 5, wherein a preload spring for driving the release bearing of the clutch to contact the diaphragm spring is provided in the rodless chamber so as to eliminate a free gap of the clutch.
The clutch control mechanism adopts the following technical scheme:
the scheme 1. Clutch control mechanism, including clutch helping hand jar, clutch helping hand jar includes cylinder body and piston, the cylinder body includes rodless cavity and has the pole chamber, the rodless cavity is equipped with the air inlet, there is the pole chamber to be equipped with the gas vent, the air inlet is connected with the air inlet solenoid valve, the rodless cavity is connected with the gassing solenoid valve, there is the pole chamber still to be equipped with and be used for communicating with the atmosphere the intercommunicating pore, be equipped with the check valve structure that only can switch on to the rodless cavity by the pole chamber between pole chamber and the rodless cavity.
The clutch control mechanism according to the scheme 1, wherein the one-way valve structure is arranged on a piston of the clutch booster cylinder.
Scheme 3. The clutch control mechanism according to scheme 2, the one-way valve structure is in the form of a ball valve.
The clutch operating mechanism according to the scheme 4, wherein the one-way valve structure comprises an axial through hole arranged on the piston and a valve ball arranged in the axial through hole, one end, close to the rod cavity, of the axial through hole is provided with a valve seat matched with the valve ball, and one side, close to the rodless cavity, of the valve ball is provided with a valve ball reset spring.
The clutch control mechanism according to the scheme 5, wherein the one-way valve structure is provided with more than two parts, and the one-way valve structures are uniformly arranged around the axis of the piston.
Scheme 6. The clutch operating mechanism according to any one of schemes 1-5, wherein the rodless cavity is provided with a manual inflation/deflation check valve.
The clutch actuating mechanism according to any one of the aspects 1 to 5, wherein a preload spring for driving the release bearing of the clutch into contact with the diaphragm spring is provided in the rodless chamber to eliminate a free gap of the clutch.
An aspect 8 is the clutch actuator according to any one of aspects 1 to 5, wherein an intake check valve for preventing backflow of gas is provided between the intake solenoid valve and the air source or between the intake solenoid valve and the air intake port.
Drawings
FIG. 1 is a schematic view of a prior art clutch operating mechanism;
FIG. 2 is a schematic illustration of a first embodiment of a clutch operating mechanism according to the present invention;
FIG. 3 is an enlarged view of a portion of the piston of FIG. 2 at the check valve;
FIG. 4 is a schematic illustration of a second embodiment of a clutch control mechanism according to the present invention;
fig. 5 is a schematic view of a third embodiment of a clutch operating mechanism in accordance with the present invention.
The corresponding names of the reference numerals in the drawings are: the clutch comprises a clutch cylinder, a 2-piston, a 3-push rod, a 4-shifting fork, a 5-swing arm, a 6-pre-compression spring, a 7-displacement sensor, an 8-piston one-way valve, a 9-air inlet electromagnetic valve, a 10-air inlet one-way valve, an 11-air outlet electromagnetic valve, a 13-manual air charging and discharging one-way valve, a 14-communication hole, a 15-clutch, a 16-diaphragm spring, a 17-release bearing, an 18-air inlet hole, a 19-external one-way valve, a 20-air storage cylinder, a 21-electronic control unit ECU, a 22-axial through hole, a 23-valve ball, a 24-valve ball reset spring and a 25-valve sleeve.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
An embodiment of a clutch control mechanism in the invention is shown in fig. 2-3, and comprises a clutch booster cylinder 1, a push rod 3 connected with a piston 2 of the clutch booster cylinder 1, a shifting fork 4 which is hinged with the push rod and a swing arm 5 for driving the shifting fork 4 to act, wherein the push rod 3 and the piston 2 divide a cylinder body of the clutch booster cylinder 1 into a rod cavity and a rodless cavity, the rodless cavity is provided with an air inlet for being connected with an air inlet electromagnetic valve 9, and the rod cavity is provided with an air outlet for being connected with an air discharging electromagnetic valve 11. The structure of the push rod 3, the fork 4 and the swing arm 5 is the same as the prior art, and will not be described in detail here.
The air inlet side of the clutch booster cylinder 1 of the clutch control mechanism is connected with two air inlet electromagnetic valves 9 in parallel, and in the initial separation stage of the clutch, the air inlet electromagnetic valves 9 are controlled to be opened simultaneously, so that quick propulsion is realized, and the response speed is improved; in the final separation stage of the clutch booster cylinder 1, only one air inlet electromagnetic valve 9 is opened, the separation bearing 17 is pushed slowly, over-pushing is avoided, and the reliability of the clutch diaphragm spring 16 is ensured. The air inlet side of the air inlet electromagnetic valve 9 is also provided with an air inlet one-way valve 10, which can prevent the reverse discharge of air and is beneficial to improving the reliability.
Two air release electromagnetic valves 11 are connected in parallel between the exhaust side and the air inlet side of the clutch booster cylinder 1 of the clutch control mechanism, before the clutch is combined, namely in the stage before the combination, the air release electromagnetic valves 11 are controlled to be opened simultaneously, the air inlet side and the air outlet side are communicated, a diaphragm spring 16 of the clutch returns to the original position, a release bearing 17 is reversely pushed, a piston 2 is pushed to the original position through a swing arm 5 and a push rod 3, and air is discharged from an exhaust hole. Because the two air release electromagnetic valves 11 are simultaneously opened, the air pressure is rapidly reduced, the release bearing 17 can be rapidly returned, and the response speed is improved; in the coupling stage of the clutch, only one air release electromagnetic valve 11 is opened, the release bearing 17 slowly returns, and the clutch is stably coupled.
The exhaust side of the clutch booster cylinder 1 is provided with a communication hole 14 for communicating with the atmosphere, the piston 2 of the clutch booster cylinder 1 is provided with a piston check valve 8, and the piston check valve 8 forms a check valve structure which can only be communicated from a rod cavity to a rodless cavity. The check valve structure comprises a valve sleeve 25 fixed on a piston 2, an axial through hole 22 is formed in an inner hole of the valve sleeve 25 on the piston 2, a valve ball 23 is arranged in the axial through hole 22, a valve seat matched with the valve ball 23 is arranged at one end, close to a rod cavity, of the axial through hole 22, and a valve ball return spring 24 is arranged at one side, close to a rodless cavity, of the valve ball. Under the condition that the air inlet electromagnetic valve 9 and the air outlet electromagnetic valve 11 are not conducted, the movable piston 2 can be driven to reciprocate by the actions of the parts such as the manual driving push rod 3 and the swing arm 5, high-pressure air can be filled in the air inlet side, the clutch push rod 3 is pushed to the air outlet side, and the separation of the clutch under the condition of failure of electromagnetic valve electric appliances is ensured. In the process of reciprocating the piston 2, gas enters the rodless chamber through the communication hole 14, and in order to prevent the clutch cylinder 1 from being polluted, an air filtering structure may be provided at the communication hole 14.
The air inlet side of the clutch booster cylinder 1 is provided with a manual air charging and discharging one-way valve 13, so that manual air charging can be realized, an air charging state can be kept, and the clutch can be kept separated; if the clutch is required to be restored to the combined state, the valve core of the manual air charging and discharging check valve 13 is pressed, and the manual air charging and discharging check valve 13 is controlled to be opened manually for discharging air. Auxiliary manual control of the clutch booster cylinder 1 can be realized through the manual inflation/deflation one-way valve 13.
The pre-compression spring 6 is further arranged between the piston 2 and the cylinder body on the air inlet side of the clutch booster cylinder 1, the pre-compression spring 6 can generate pre-compression force for pushing the release bearing 17 of the clutch to act, and free gaps between the release bearing 17 of the clutch and the diaphragm spring 16 are eliminated. In this way, when the piston 2 of the clutch cylinder 1 is operated, the release bearing 17 of the clutch is synchronously operated, and the operation relationship between the release bearing 17 and the clutch operation mechanism is matched. The push rod 3 is used as a direct-acting part of the clutch operating mechanism, and is correspondingly provided with a displacement sensor 7, and the displacement sensor 7 can reflect the state of the clutch operating mechanism in real time, and can reflect the motion state of the clutch at the same time, thereby laying a foundation for the stroke control of the clutch.
In the second embodiment of the clutch stroke control method of the clutch operating mechanism of the present invention, as shown in fig. 4, the difference from embodiment 1 is that the piston check valve 8 in this embodiment is a valve plate structure, and the valve plate is hinged on the piston 2 or movably disposed on the piston along the axial direction of the piston.
In the third embodiment of the clutch stroke control method of the clutch operating mechanism of the present invention, as shown in fig. 5, the difference from embodiment 1 is that the check valve structure connected between the rod-shaped cavity and the rodless cavity in this embodiment is not provided on the piston, but is provided outside the cylinder body of the clutch assisting cylinder 1, forming an external check valve 19 connected between the rod-shaped cavity and the rodless cavity through a pipe.
In other embodiments of the invention, the one-way valve structure connected between the rod-and rodless chambers may be provided in more than two places, for example, two places, the two one-way valve structures being uniformly arranged around the axis of the piston.
The embodiment of the clutch booster cylinder in the present invention, that is, the embodiment of any one of the above clutch actuating mechanisms, is not described herein in detail.
Claims (15)
1. The clutch booster cylinder comprises a cylinder body and a piston, wherein the cylinder body comprises a rodless cavity and a rod cavity, the rodless cavity is provided with an air inlet used for being connected with an air inlet electromagnetic valve, and the rod cavity is provided with an air outlet used for being connected with an air release electromagnetic valve, and the clutch booster cylinder is characterized in that: the rod cavity is also provided with a communication hole which is used for communicating with the atmosphere, and a one-way valve structure which can be conducted from the rod cavity to the rod-free cavity is arranged between the rod cavity and the rod-free cavity.
2. The clutch-assisted cylinder according to claim 1, characterized in that: the one-way valve structure is arranged on a piston of the clutch booster cylinder.
3. The clutch-assisted cylinder according to claim 2, characterized in that: the one-way valve structure is in the form of a ball valve.
4. A clutch-assisted cylinder according to claim 3, characterized in that: the one-way valve structure comprises an axial through hole arranged on the piston and a valve ball arranged in the axial through hole, one end, close to the rod cavity, of the axial through hole is provided with a valve seat matched with the valve ball, and one side, close to the rodless cavity, of the valve ball is provided with a valve ball reset spring.
5. A clutch-assisted cylinder according to claim 3, characterized in that: the one-way valve structure is provided with more than two parts, and the one-way valve structures at all parts are uniformly arranged around the axis of the piston.
6. The clutch cylinder according to any one of claims 1 to 5, characterized in that: the rodless cavity is provided with a manual inflation/deflation one-way valve.
7. The clutch cylinder according to any one of claims 1 to 5, characterized in that: and a pre-compression spring used for driving a release bearing of the clutch to be in contact with the diaphragm spring so as to eliminate a free gap of the clutch is arranged in the rodless cavity.
8. The clutch control mechanism comprises a clutch booster cylinder, wherein the clutch booster cylinder comprises a cylinder body and a piston, the cylinder body comprises a rodless cavity and a rod cavity, the rodless cavity is provided with an air inlet, the rod cavity is provided with an air outlet, the air inlet is connected with an air inlet electromagnetic valve, and the rodless cavity is connected with an air outlet electromagnetic valve, and the clutch booster mechanism is characterized in that: the rod cavity is also provided with a communication hole which is used for communicating with the atmosphere, and a one-way valve structure which can be conducted from the rod cavity to the rod-free cavity is arranged between the rod cavity and the rod-free cavity.
9. The clutch operating mechanism of claim 8, wherein: the one-way valve structure is arranged on a piston of the clutch booster cylinder.
10. The clutch operating mechanism of claim 9, wherein: the one-way valve structure is in the form of a ball valve.
11. The clutch operating mechanism of claim 10, wherein: the one-way valve structure comprises an axial through hole arranged on the piston and a valve ball arranged in the axial through hole, one end, close to the rod cavity, of the axial through hole is provided with a valve seat matched with the valve ball, and one side, close to the rodless cavity, of the valve ball is provided with a valve ball reset spring.
12. The clutch operating mechanism of claim 10, wherein: the one-way valve structure is provided with more than two parts, and the one-way valve structures at all parts are uniformly arranged around the axis of the piston.
13. The clutch control mechanism according to any one of claims 8 to 12, wherein: the rodless cavity is provided with a manual inflation/deflation one-way valve.
14. The clutch control mechanism according to any one of claims 8 to 12, wherein: and a pre-compression spring used for driving a release bearing of the clutch to be in contact with the diaphragm spring so as to eliminate a free gap of the clutch is arranged in the rodless cavity.
15. The clutch control mechanism according to any one of claims 8 to 12, wherein: an air inlet one-way valve for preventing air from flowing back is arranged between the air inlet electromagnetic valve and the air source or between the air inlet electromagnetic valve and the air inlet.
Priority Applications (1)
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CN201710877065.8A CN109555795B (en) | 2017-09-25 | 2017-09-25 | Clutch booster cylinder and clutch operating mechanism |
Applications Claiming Priority (1)
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CN201710877065.8A CN109555795B (en) | 2017-09-25 | 2017-09-25 | Clutch booster cylinder and clutch operating mechanism |
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CN109555795A CN109555795A (en) | 2019-04-02 |
CN109555795B true CN109555795B (en) | 2024-04-26 |
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CN201710877065.8A Active CN109555795B (en) | 2017-09-25 | 2017-09-25 | Clutch booster cylinder and clutch operating mechanism |
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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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