CN112178069A - Hydrostatic clutch shifts and executes structure, gearbox and car - Google Patents
Hydrostatic clutch shifts and executes structure, gearbox and car Download PDFInfo
- Publication number
- CN112178069A CN112178069A CN202010992358.2A CN202010992358A CN112178069A CN 112178069 A CN112178069 A CN 112178069A CN 202010992358 A CN202010992358 A CN 202010992358A CN 112178069 A CN112178069 A CN 112178069A
- Authority
- CN
- China
- Prior art keywords
- driving
- gear
- friction plates
- plunger
- transmission
- 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.)
- Granted
Links
Images
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
- F16D25/00—Fluid-actuated clutches
- F16D25/10—Clutch systems with a plurality of fluid-actuated clutches
-
- 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
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
-
- 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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a hydrostatic clutch gear shifting execution structure, a gearbox and an automobile, wherein the hydrostatic clutch gear shifting execution structure comprises: the two clutches comprise friction plates and a pressure plate, wherein the friction plates are arranged at a combination position and a separation position, the pressure plate is provided with a first position and a second position, the friction plates are arranged at the combination position at the first position, and the friction plates are arranged at the separation position at the second position; the two hydraulic transmission mechanisms comprise a driving cavity, a pushing plunger and a driving plunger, one end of the pushing plunger is sealed and arranged in the driving cavity in a sliding mode, the other end of the pushing plunger is connected with the pressure plate, one end of the driving plunger is sealed and arranged in the driving cavity in a sliding mode, and transmission liquid is arranged between the pushing plunger and the driving plunger; the driving mechanism comprises a driving device and a transmission mechanism, the transmission mechanism is connected to the other ends of the driving device and the driving plungers, and the transmission mechanism enables the two driving plungers to move oppositely at the same moment.
Description
Technical Field
The invention relates to the technical field of vehicle gearboxes, in particular to a hydrostatic clutch gear shifting execution structure, a gearbox and an automobile.
Background
The present automotive multi-speed transmissions include AMT and dual clutch solutions. In the AMT scheme, the power interruption time in the gear shifting process is long, so that the power performance of the whole vehicle and the driving feeling of a vehicle owner are influenced; therefore, the double clutch transmission comes along.
The dual clutch transmission appears to be a two person controlled vehicle gear shift. When the vehicle runs normally, one group of clutches is connected with a certain gear in the gearbox, the power of an engine is transmitted to a driving wheel, the TCU can cooperate with the ECU to pre-judge the gear-shifting intention according to data such as speed, rotating speed and the like, and the other group of clutches is connected with the other gear in advance and is in a ready state. When a gear shift is required, the clutch currently responsible for the transmission is disengaged while the other set of clutches in the ready state is engaged to transmit engine power. The shift speed is therefore much faster than in a geared automatic gearbox, and even much faster than in a manual gearbox operated by some professional drivers.
In the double-clutch scheme, two paths of hydraulic oil are needed for pressure control, a large number of electromagnetic valves with high precision are needed for complex main oil path control, branch flow and pressure control of a hydraulic structure, the structure of the hydraulic system is complex, the sealing performance of the clutch is poor, and the hysteresis is large due to the large diameter of a piston cavity.
Disclosure of Invention
The invention mainly aims to provide a hydrostatic clutch gear shifting execution structure, a gearbox and an automobile, and aims to provide a double hydrostatic clutch gear shifting execution structure which is simple in structure and high in control efficiency.
In order to achieve the above object, the present invention provides a hydrostatic clutch shift actuating structure, including:
two clutches, each clutch including a plurality of friction plates and a pressure plate, the friction plates having an engaged position and a disengaged position, the pressure plate having a first position in which the pressure plate presses at least one of the friction plates so that the friction plates are in the engaged position, and a second position in which the pressure plate releases the pressing of at least one of the friction plates so that the friction plates are in the disengaged position;
the two hydraulic transmission mechanisms are respectively arranged in one-to-one correspondence with the pressure plates of the two clutches, each hydraulic transmission mechanism comprises a driving cavity, a pushing plunger and a driving plunger, one end of the pushing plunger is arranged in the driving cavity in a sealing and sliding mode, the other end of the pushing plunger is connected with the corresponding pressure plate, one end of the driving plunger is arranged in the driving cavity in a sealing and sliding mode, and transmission liquid is arranged between the pushing plunger and the driving plunger in the driving cavity; and the number of the first and second groups,
and the driving mechanism comprises a driving device and a transmission mechanism, the transmission mechanism is connected to the driving device and the other ends of the two driving plungers in a transmission manner, and the transmission mechanism is set to enable the two driving plungers to move oppositely at the same moment so as to enable the friction plates of the two clutches to be alternatively clutched.
Optionally, the drive means comprises a motor having an output shaft,
the transmission mechanism comprises a swash plate which is arranged in a rotating mode, the swash plate is in transmission connection with an output shaft of the motor so as to be driven by the output shaft of the motor to rotate, the swash plate is located at one end, provided with the driving plunger, of the driving cavity, and the swash plate and the end face of one end, provided with the driving plunger, of the driving cavity are arranged in an inclined mode;
the other ends of the driving plungers of the two hydraulic transmission mechanisms are connected with the swash plate so as to be driven by the swash plate to rotate and simultaneously stretch and retract.
Optionally, the transmission mechanism further comprises:
the worm is connected with an output shaft of the motor; and the number of the first and second groups,
and the worm wheel is meshed with the worm, and the worm wheel is coaxially connected with the swash plate.
Optionally, the drive cavity comprises:
one ends of the two driving plungers are sealed from one ends of the two first cavities correspondingly and are installed in the two first cavities in a sliding mode; and the number of the first and second groups,
and the two second cavities correspond to the two clutches, one ends of the two second cavities are correspondingly communicated with the other ends of the two first cavities, and the two pushing plungers are correspondingly arranged at the other ends of the two second cavities in a sealing and sliding mode.
Optionally, the driving cavity further includes two oil distribution grooves, two notches of one of the oil distribution grooves are respectively communicated with the first cavity and the second cavity of one of the two hydraulic transmission mechanisms to form one of the two driving cavities, and two notches of the other oil distribution groove are respectively communicated with the first cavity and the second cavity of the other of the two hydraulic transmission mechanisms to form the other of the two driving cavities.
Optionally, each clutch still includes clutch body and elastic component, a plurality of friction discs are located in the clutch body, elastic component one end with the pressure disk inside wall is connected, the other end with the outer wall of clutch body is connected, is used for making the pressure disk follow first position resets to the second position.
The invention further provides a gearbox, which comprises the hydrostatic clutch gear shifting execution structure.
Optionally, the gearbox further comprises:
a housing;
the input shaft assembly and the output shaft assembly are arranged in the shell in parallel, a first-gear driving gear and a second-gear driving gear are arranged on the input shaft assembly at intervals along the axial direction of the input shaft assembly, a first-gear driven gear and a second-gear driven gear are arranged on the output shaft assembly at intervals along the axial direction of the output shaft assembly, and the first-gear driven gear and the second-gear driven gear are respectively correspondingly matched with the first-gear driving gear and the second-gear driving gear;
one of the two clutches is connected with the first gear driving gear to rotate along with the first gear driving gear, and the other clutch is connected with the second gear driving gear to rotate along with the second gear driving gear.
Optionally, each of the clutches further comprises:
the inner hub is connected with the first gear driving gear or the second gear driving gear so as to rotate along with the first gear driving gear or the second gear driving gear;
the outer hub is rotatably sleeved on the periphery of the inner hub; the plurality of friction plates comprise a plurality of inner hub friction plates distributed on the outer side wall of the inner hub and a plurality of outer hub friction plates distributed on the inner side wall of the outer hub, the plurality of inner hub friction plates and the plurality of outer hub friction plates are distributed at intervals along the axial direction of the input shaft assembly, and each inner hub friction plate is arranged between two adjacent outer hub friction plates.
The invention further provides an automobile which comprises the hydrostatic clutch gear shifting execution structure.
In the technical scheme of the invention, the hydrostatic clutch gear shifting execution structure is provided with a driving mechanism and two hydraulic transmission mechanisms, the transmission mechanisms are in transmission connection with the driving device and the other ends of two driving plungers, and the transmission mechanism is set to make the two driving plungers move oppositely at the same time so as to make the friction plates of the two clutches clutch alternatively clutched, the volume of the two driving cavities is increased and decreased by the movement of the driving plunger, thereby pushing the plunger piston to press the pressure plate and to be far away from the pressure plate through hydraulic pressure, finally realizing one combination and one separation of the two clutches, adopting the two clutches, through clutch exchange control in the gear shifting process, power gear shifting is realized, the function that one clutch is combined with the other clutch to be separated is conveniently realized, and the alternate control of the two clutches can be realized only by controlling a driving device. The structure and control are greatly simplified, the system structure is greatly simplified, the hardware of the electric control system is greatly simplified, and the development difficulty of control software is greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of a transmission provided by the present invention;
fig. 2 is a schematic structural diagram of a hydrostatic clutch shift execution structure in fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the double-clutch scheme, two paths of hydraulic oil are needed for pressure control, a large number of electromagnetic valves with high precision are needed for complex main oil path control, branch flow and pressure control of a hydraulic structure, the structure of the hydraulic system is complex, the sealing performance of the clutch is poor, and the hysteresis is large due to the large diameter of a piston cavity.
In view of this, the invention provides a hydrostatic clutch gear shifting executing structure, a transmission and an automobile, and aims to provide a dual hydrostatic clutch gear shifting executing structure which is simple in structure and high in control efficiency. FIG. 1 is a schematic structural diagram of an embodiment of a transmission provided by the present invention; fig. 2 is a schematic structural diagram of a hydrostatic clutch shift execution structure in fig. 1.
Referring to fig. 1 and 2, the hydrostatic clutch shift actuating structure according to the present invention includes two clutches 1, two hydraulic transmission mechanisms 2, and a driving mechanism 3, wherein each clutch 1 includes a plurality of friction plates 11 and a pressure plate 12, the friction plates 11 have an engaging position and a disengaging position, the pressure plate 12 has a first position and a second position, in the first position, the pressure plate 12 presses at least one friction plate 11, such that the friction plates 11 are at the engaging position, and in the second position, the pressure plate 12 releases the pressing of at least one friction plate 11, such that the friction plates 11 are at the disengaging position; the two hydraulic transmission mechanisms 2 are respectively arranged corresponding to the pressure plates 12 of the two clutches 1 one by one, each hydraulic transmission mechanism 2 comprises a driving cavity 21, a pushing plunger 22 and a driving plunger 23, one end of the pushing plunger 22 is arranged in the driving cavity 21 in a sealing and sliding mode, the other end of the pushing plunger 22 is connected with the corresponding pressure plate 12, one end of the driving plunger 23 is arranged in the driving cavity 21 in a sealing and sliding mode, and transmission liquid is arranged between the pushing plunger 22 and the driving plunger 23 in the driving cavity 21; the driving mechanism 3 comprises a driving device 31 and a transmission mechanism 32, the transmission mechanism 32 is in transmission connection with the driving device 31 and the other ends of the two driving plungers 23, and the transmission mechanism 32 is arranged to enable the two driving plungers 23 to move oppositely at the same moment so as to enable the friction plates 11 of the two clutches 1 to be alternatively clutched.
In the technical scheme of the invention, a hydrostatic clutch gear-shifting executing structure is provided with a driving mechanism 3 and two hydraulic transmission mechanisms 2, the transmission mechanism 32 is in transmission connection with the other ends of a driving device 31 and two driving plungers 23, the transmission mechanism 32 is arranged to enable the two driving plungers 23 to move oppositely at the same moment so as to enable a plurality of friction plates 11 of two clutches 1 to be in clutch engagement alternately, and the movement of the driving plungers 23 is used for realizing the increase and decrease of the volumes of two driving cavities 21 one by one, so that the plungers 22 are pushed to press a pressure plate 12 and far away from the pressure plate 12 through hydraulic pressure, and finally the combination and the separation of the two clutches 1 are realized one by one, the invention adopts two clutches 1, realizes power gear shifting through the exchange control of the clutches 1 in the gear-shifting process, and conveniently realizes the function of combining one clutch 1 with the other clutch 1, the alternate control of the two clutches 1 can be realized only by controlling the driving device 31, the structure and the control are greatly simplified, the system structure is greatly simplified, the hardware of the electric control system is greatly simplified, and the development difficulty of control software is greatly reduced.
The transmission liquid is preferably hydraulic oil, and the hydrostatic clutch gear shifting execution structure directly feeds back the volume change of the driving cavity 21 to the pushing displacement by utilizing the incompressibility of the hydraulic oil. The conventional wet clutch 1 control system is pressure control, and the present invention changes it into displacement control. In the invention, the pressure plate 12 of the clutch 1 is designed into an elastic device, so that the displacement of the clutch 1 from a Kp point to a completely combined piston can be prolonged, and the difficulty of displacement control is greatly reduced.
In order to increase the stability of the sealing, in the embodiment of the present invention, the sealing members are disposed between the driving cavity 21 and the pushing plunger 22 and between the driving cavity 23, so as to effectively prevent the transmission fluid in the driving cavity 21 from leaking, and increase the stability of the system. Compared with the traditional mode of adopting rotary sealing oil supply, the hydrostatic clutch gear-shifting execution structure greatly reduces leakage, greatly reduces the loss of a hydraulic system on the one hand, and provides possibility for the system to adopt hydrostatic control.
Preferably, the drive means 31 comprises an electric motor having an output shaft.
As to how to realize that the two driving plungers 23 move oppositely at the same time, the present invention is not limited, and preferably, referring to fig. 2, the transmission mechanism 32 includes a swash plate 323 which is rotatably disposed, the swash plate 323 is in transmission connection with the output shaft of the motor so as to be driven by the output shaft of the motor to rotate, the swash plate 323 is located at one end of the driving cavity 21 where the driving plunger 23 is disposed, and is disposed obliquely with the end surface of the driving cavity 21 where the driving plunger 23 is disposed; the other ends of the driving plungers 23 of the two hydraulic actuators 2 are connected to the swash plate 323 so as to be rotated by the swash plate 323 and simultaneously extend and contract. In the mode, only one motor is needed, the change of the volumes of the two driving cavities 21 can be realized simultaneously, the volume of the gear shifting execution structure of the hydrostatic clutch is reduced, and the structure is greatly simplified.
It should be noted that, in the hydraulic transmission mechanism 2 of the present invention, the driving plunger 23 may be provided as a single driving plunger 23, or as in the embodiment of the present invention, the driving plunger 23 includes a plurality of sub-plungers, the plurality of sub-plungers are uniformly arranged along the circumferential direction of the swash plate 323, at this time, the driving cavity 21 is correspondingly provided as a plurality of sub-cavities, so that when the motor drives the sub-plungers to rotate, half of the sub-plungers move into the driving cavity 21, so that the volume of the driving cavity 21 is reduced, a pressure oil cavity is formed, and the other half of the sub-plungers move in the opposite direction, so that the volume of the driving cavity 21 is increased, an oil suction cavity is formed, and the driving force of the driving is increased. In addition, the connection mode between the driving plunger 23 and the swash plate 323 is not limited in the present invention, and preferably, referring to fig. 2, each sub-plunger is fixed to the swash plate 323 by a ball joint, so that the sub-plungers rotate with the swash plate 323, thereby increasing flexibility and avoiding damage.
In order to increase the continuous effectiveness of the transmission, in the embodiment of the present invention, referring to fig. 1 and fig. 2, the driving cavity 21 includes at least two first cavities 211 and at least two second cavities 212, wherein one end of each of the two driving plungers 23 is sealed from one end of each of the two first cavities 211 and is slidably mounted in the two first cavities 211; at least two second cavities 212 are arranged corresponding to the two clutches 1, one ends of the two second cavities 212 are correspondingly communicated with the other ends of the two first cavities 211, and the two pushing plungers 22 are hermetically and slidably mounted in the two second cavities 212 corresponding to the other ends of the two second cavities 212. That is, each driving chamber 21 includes at least one first chamber 211 and at least one second chamber 212, which increases the stability of the transmission.
Although the two clutches 1 are normally open, once the motor works, one clutch 1 can be combined with the other clutch 1 to be separated through the hydrostatic clutch gear shifting execution structure. The invention cancels the structure of controlling the pressure of the clutch 1 by the hydraulic valve, greatly simplifies the structure and has low cost.
In an embodiment of the present invention, referring to fig. 1 and fig. 2, the first cavity 211 is a plurality of plunger cavities corresponding to a plurality of sub-plungers, the second cavity 212 is a piston cylinder, the driving plunger 23 is a plurality of sub-plungers, and the pushing plunger 22 is a piston installed in the piston cylinder. Simple structure, convenience and easy operation.
In addition, when the driving plunger 23 includes a plurality of sub-plungers, in order to realize a uniform configuration of transmission fluid in each plunger cavity, in the embodiment of the present invention, referring to fig. 2, the driving cavity 21 further includes two oil distribution grooves 213, wherein two notches of one oil distribution groove 213 are respectively communicated with the first cavity 211 and the second cavity 212 of one of the two hydraulic transmission mechanisms 2 to form one of the two driving cavities 21, and two notches of the other oil distribution groove 213 are respectively communicated with the first cavity 211 and the second cavity 212 of the other of the two hydraulic transmission mechanisms 2 to form the other of the two driving cavities 21. That is, in the embodiment of the present invention, each driving cavity 21 includes a plurality of plunger cavities, an oil distribution groove 213, and a piston cylinder, which are connected in sequence, and the structural stability is strong.
It should be noted that, the oil distribution groove 213 is communicated with the second cavity 212, and the notch is in rotatable and sealed communication with the second cavity 212, which is not limited in the present invention as long as the sealed connection can be achieved.
In order to realize that the motor drives the swash plate 323 to rotate the swash plate 323 in the plane where the swash plate 323 is located, in the embodiment of the present invention, referring to fig. 2, the transmission mechanism 32 further includes a worm 321 and a worm wheel 322, wherein the worm 321 is connected with an output shaft of the motor; the worm wheel 322 is engaged with the worm 321, and the worm wheel 322 is coaxially connected to the swash plate 323. Thus, the motor can be placed on a horizontal plane, the rotation of the rotating shaft of the motor in the vertical direction is converted into the oblique rotation of the swash plate 323, and the stability is high. The motor is connected with the worm wheel 322 and worm 321 mechanism, and the motor can stop rotating when the gearbox works under a gear working condition by utilizing the self-locking characteristic of the worm wheel 322 and the worm 321, namely the system is kept by the self-locking of the worm wheel 322 and the worm 321. In order to improve the reliability of the system, a pressure sensor can be arranged in the oil circuit, and the motor is started to work only when needed. Therefore, the scheme can greatly reduce the working time of the hydraulic system and reduce the energy consumption.
When a gear shifting instruction is obtained, the motor is controlled to rotate reversely, the oil supply speed of the driving cavity 21 is adjusted and controlled through the rotating speed of the motor, so that the two clutches 1 are adjusted to be combined and separated in a preset state, the torque exchange of the clutches 1 is realized, and the power gear shifting is realized. In addition, according to the invention, through the special design of the clutch gear shifting execution structure and the clutch 1, after the gear shifting action is finished, hydraulic oil can be effectively and hermetically kept in the closed cavity, and the gear can be ensured to be stable in the gear when the driving device 31 in the clutch gear shifting execution mechanism does not work continuously.
Referring to fig. 1, in the embodiment of the present invention, each clutch 1 further includes a clutch body 13 and an elastic member 14, the plurality of friction plates 11 are disposed in the clutch body 13, one end of the elastic member 14 is connected to an inner sidewall of the pressure plate 12, and the other end is connected to an outer wall surface of the clutch body 13, so as to enable the pressure plate 12 to return from the first position to the second position. The elastic part 14 is preferably a spring, when the clutch 1 is combined, the spring is in a compressed state, when the clutch 1 needs to be separated, the corresponding pushing plunger 22 is far away from the pressure plate 12, at the moment, the spring also acts to further make the pressure plate 12 far away from the friction plates 11 of the clutch 1, the pressure plate 12 releases the pressing on at least one friction plate 11, so that the friction plates 11 are in a separated position, and the structure is simple, flexible and convenient.
In order to further increase the structural flexibility, referring to fig. 1, each clutch 1 further includes a release bearing 17 connected to the push plunger 22 and the pressure plate 12, respectively, when the volume of the driving cavity 21 is reduced, the hydraulic system supplies oil, and the piston cylinder of the clutch 1 pushes the release bearing 17 of the clutch 1 and the pressure plate 12 of the clutch 1 to press at least one friction plate 11, so that the friction plates 11 are in a combined position to transmit torque, and further, power is transmitted.
The invention further proposes a gearbox comprising a gear shift actuation structure of the clutch 1 as described above.
Further, referring to fig. 1, the transmission further includes a housing, an input shaft assembly 102 and an output shaft assembly 103, wherein the input shaft assembly 102 and the output shaft assembly 103 are arranged in parallel in the housing, the input shaft assembly 102 is provided with a first-gear driving gear 104 and a second-gear driving gear 105 at intervals along an axial direction thereof, the output shaft assembly 103 is provided with a first-gear driven gear 106 and a second-gear driven gear 107 at intervals along the axial direction thereof, and the first-gear driven gear 106 and the second-gear driven gear 107 are respectively and correspondingly matched with the first-gear driving gear 104 and the second-gear driving gear 105; one of the two clutches 1 is connected to the first gear driving gear 104 to rotate with the first gear driving gear 104, and the other is connected to the second gear driving gear 105 to rotate with the second gear driving gear 105. Specifically, two clutches 1 are arranged at the input end of the gearbox side by side, and the same function can be realized by nesting the two input shafts, so that the gear shifting of more gears can be realized more conveniently.
As for the specific form of the friction plate 11, preferably, referring to fig. 1, each clutch 1 further includes an inner hub 15 and an outer hub 16, wherein the inner hub 15 is connected to the first gear driving gear 104 or the second gear driving gear 105 to rotate along with the first gear driving gear 104 or the second gear driving gear 105; the outer hub 16 is rotatably sleeved on the periphery of the inner hub 15; the plurality of friction plates 11 include a plurality of inner hub friction plates 111 disposed on an outer side wall of the inner hub 15 and a plurality of outer hub friction plates 112 disposed on an inner side wall of the outer hub 16, the plurality of inner hub friction plates 111 and the plurality of outer hub friction plates 112 are disposed at intervals along an axial direction of the input shaft assembly 102, and each inner hub friction plate 111 is disposed between two adjacent outer hub friction plates 112.
According to the invention, the drive cavity 21 is embedded in the gearbox shell, the drive cavity 21 pushes the release bearing 17, so that the clutch 1 is pushed to act, the leakage is reduced, the energy efficiency is improved, and the clutch 1 hysteresis is improved; through the plunger type hydrostatic gear-shifting control system structure, one of the two normally-open clutches 1 is combined with the other normally-open clutch 1 and is in a disengaged state, so that the structure and the control are greatly simplified.
The invention further provides an automobile which comprises the hydrostatic clutch gear shifting execution structure.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A hydrostatic clutch shift actuation structure, comprising:
two clutches, each clutch including a plurality of friction plates and a pressure plate, the friction plates having an engaged position and a disengaged position, the pressure plate having a first position in which the pressure plate presses at least one of the friction plates so that the friction plates are in the engaged position, and a second position in which the pressure plate releases the pressing of at least one of the friction plates so that the friction plates are in the disengaged position;
the two hydraulic transmission mechanisms are respectively arranged in one-to-one correspondence with the pressure plates of the two clutches, each hydraulic transmission mechanism comprises a driving cavity, a pushing plunger and a driving plunger, one end of the pushing plunger is arranged in the driving cavity in a sealing and sliding mode, the other end of the pushing plunger is connected with the corresponding pressure plate, one end of the driving plunger is arranged in the driving cavity in a sealing and sliding mode, and transmission liquid is arranged between the pushing plunger and the driving plunger in the driving cavity; and the number of the first and second groups,
and the driving mechanism comprises a driving device and a transmission mechanism, the transmission mechanism is connected to the driving device and the other ends of the two driving plungers in a transmission manner, and the transmission mechanism is set to enable the two driving plungers to move oppositely at the same moment so as to enable the friction plates of the two clutches to be alternatively clutched.
2. The hydrostatic clutch shift actuation structure of claim 1, wherein said drive means includes an electric motor having an output shaft,
the transmission mechanism comprises a swash plate which is arranged in a rotating mode, the swash plate is in transmission connection with an output shaft of the motor so as to be driven by the output shaft of the motor to rotate, the swash plate is located at one end, provided with the driving plunger, of the driving cavity, and the swash plate and the end face of one end, provided with the driving plunger, of the driving cavity are arranged in an inclined mode;
the other ends of the driving plungers of the two hydraulic transmission mechanisms are connected with the swash plate so as to be driven by the swash plate to rotate and simultaneously stretch and retract.
3. The hydrostatic clutch shift actuation structure of claim 2, wherein said transmission further comprises:
the worm is connected with an output shaft of the motor; and the number of the first and second groups,
and the worm wheel is meshed with the worm, and the worm wheel is coaxially connected with the swash plate.
4. The hydrostatic clutch shift actuation structure of claim 1, wherein said drive chamber includes:
one ends of the two driving plungers are sealed from one ends of the two first cavities correspondingly and are installed in the two first cavities in a sliding mode; and the number of the first and second groups,
and the two second cavities correspond to the two clutches, one ends of the two second cavities are correspondingly communicated with the other ends of the two first cavities, and the two pushing plungers are correspondingly arranged at the other ends of the two second cavities in a sealing and sliding mode.
5. The hydrostatic clutch shift actuation structure of claim 4, wherein said drive chambers further include two oil distribution grooves, wherein two notches of one of said oil distribution grooves are respectively communicated with the first and second chambers of one of said two hydraulic transmission mechanisms to form one of said two drive chambers, and wherein two notches of the other of said oil distribution grooves are respectively communicated with the first and second chambers of the other of said two hydraulic transmission mechanisms to form the other of said two drive chambers.
6. The hydrostatic clutch shift actuation structure of claim 1, wherein each of said clutches further includes a clutch body and a resilient member, said plurality of friction plates being disposed within said clutch body, said resilient member having one end connected to an inner sidewall of said pressure plate and another end connected to an outer wall of said clutch body for returning said pressure plate from said first position to said second position.
7. A transmission comprising a hydrostatic clutch shift actuator as claimed in any one of claims 1 to 6.
8. The transmission of claim 7, further comprising:
a housing;
the input shaft assembly and the output shaft assembly are arranged in the shell in parallel, a first-gear driving gear and a second-gear driving gear are arranged on the input shaft assembly at intervals along the axial direction of the input shaft assembly, a first-gear driven gear and a second-gear driven gear are arranged on the output shaft assembly at intervals along the axial direction of the output shaft assembly, and the first-gear driven gear and the second-gear driven gear are respectively correspondingly matched with the first-gear driving gear and the second-gear driving gear;
one of the two clutches is connected with the first gear driving gear to rotate along with the first gear driving gear, and the other clutch is connected with the second gear driving gear to rotate along with the second gear driving gear.
9. A transmission as recited in claim 8, wherein each of said clutches further comprises:
the inner hub is connected with the first gear driving gear or the second gear driving gear so as to rotate along with the first gear driving gear or the second gear driving gear;
the outer hub is rotatably sleeved on the periphery of the inner hub; the plurality of friction plates comprise a plurality of inner hub friction plates distributed on the outer side wall of the inner hub and a plurality of outer hub friction plates distributed on the inner side wall of the outer hub, the plurality of inner hub friction plates and the plurality of outer hub friction plates are distributed at intervals along the axial direction of the input shaft assembly, and each inner hub friction plate is arranged between two adjacent outer hub friction plates.
10. An automobile, characterized by comprising the hydrostatic clutch shift execution structure as recited in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992358.2A CN112178069B (en) | 2020-09-18 | 2020-09-18 | Hydrostatic clutch shifts and executes structure, gearbox and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992358.2A CN112178069B (en) | 2020-09-18 | 2020-09-18 | Hydrostatic clutch shifts and executes structure, gearbox and car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112178069A true CN112178069A (en) | 2021-01-05 |
| CN112178069B CN112178069B (en) | 2021-10-29 |
Family
ID=73956635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010992358.2A Active CN112178069B (en) | 2020-09-18 | 2020-09-18 | Hydrostatic clutch shifts and executes structure, gearbox and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112178069B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369613A1 (en) * | 2002-06-07 | 2003-12-10 | Magneti Marelli Powertrain S.p.A. | Dual clutch transmission unit for a motor vehicle |
| JP2007245861A (en) * | 2006-03-15 | 2007-09-27 | Yanmar Co Ltd | Forward/rearward travel switching controller for working vehicle |
| US20090194383A1 (en) * | 2008-02-01 | 2009-08-06 | Kuno Fronius | Dual clutch arrangement |
| CN202429065U (en) * | 2011-12-30 | 2012-09-12 | 比亚迪股份有限公司 | Electric vehicle and driving system thereof |
| CN103109111A (en) * | 2010-07-16 | 2013-05-15 | 沃尔沃建筑设备公司 | Continuously variable transmission and a working maching including a continuously variable transmission |
| CN103459899A (en) * | 2010-12-21 | 2013-12-18 | 谢夫勒科技股份两合公司 | Switch unit |
| CN103851105A (en) * | 2012-12-07 | 2014-06-11 | 上海汽车集团股份有限公司 | Hydraulic separation system |
| CN104603489A (en) * | 2012-09-04 | 2015-05-06 | 沃尔沃卡车集团 | Dry-plate clutch for vehicle transmission |
| US20150129347A1 (en) * | 2012-06-08 | 2015-05-14 | Gebhard Charles Wager | Methods and apparatus for independently variable torque distribution to motor vehicle drive wheels |
| CN206221640U (en) * | 2016-11-10 | 2017-06-06 | 吉林大学 | Electric vehicle gear box with linkage gear shifting actuating mechanism |
| CN107781316A (en) * | 2016-08-29 | 2018-03-09 | 迪尔公司 | Fluid control device for disk group |
| CN108426003A (en) * | 2018-05-21 | 2018-08-21 | 福州钻智汽车科技有限公司 | A kind of single control chip double clutch parallel shaft transmission |
| WO2018173488A1 (en) * | 2017-03-22 | 2018-09-27 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Dog clutch and transmission |
| US20180283504A1 (en) * | 2017-03-30 | 2018-10-04 | Honda Motor Co.,Ltd. | Transmission control device and automatic transmission including the same |
-
2020
- 2020-09-18 CN CN202010992358.2A patent/CN112178069B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1369613A1 (en) * | 2002-06-07 | 2003-12-10 | Magneti Marelli Powertrain S.p.A. | Dual clutch transmission unit for a motor vehicle |
| JP2007245861A (en) * | 2006-03-15 | 2007-09-27 | Yanmar Co Ltd | Forward/rearward travel switching controller for working vehicle |
| US20090194383A1 (en) * | 2008-02-01 | 2009-08-06 | Kuno Fronius | Dual clutch arrangement |
| CN103109111A (en) * | 2010-07-16 | 2013-05-15 | 沃尔沃建筑设备公司 | Continuously variable transmission and a working maching including a continuously variable transmission |
| CN103459899A (en) * | 2010-12-21 | 2013-12-18 | 谢夫勒科技股份两合公司 | Switch unit |
| CN202429065U (en) * | 2011-12-30 | 2012-09-12 | 比亚迪股份有限公司 | Electric vehicle and driving system thereof |
| US20150129347A1 (en) * | 2012-06-08 | 2015-05-14 | Gebhard Charles Wager | Methods and apparatus for independently variable torque distribution to motor vehicle drive wheels |
| CN104603489A (en) * | 2012-09-04 | 2015-05-06 | 沃尔沃卡车集团 | Dry-plate clutch for vehicle transmission |
| CN103851105A (en) * | 2012-12-07 | 2014-06-11 | 上海汽车集团股份有限公司 | Hydraulic separation system |
| CN107781316A (en) * | 2016-08-29 | 2018-03-09 | 迪尔公司 | Fluid control device for disk group |
| CN206221640U (en) * | 2016-11-10 | 2017-06-06 | 吉林大学 | Electric vehicle gear box with linkage gear shifting actuating mechanism |
| WO2018173488A1 (en) * | 2017-03-22 | 2018-09-27 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Dog clutch and transmission |
| US20180283504A1 (en) * | 2017-03-30 | 2018-10-04 | Honda Motor Co.,Ltd. | Transmission control device and automatic transmission including the same |
| CN108426003A (en) * | 2018-05-21 | 2018-08-21 | 福州钻智汽车科技有限公司 | A kind of single control chip double clutch parallel shaft transmission |
Non-Patent Citations (1)
| Title |
|---|
| 陈国俊: "16t轮胎式挖掘机制动限速降挡控制", 《建筑机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112178069B (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5789508B2 (en) | Synchronous lock clutch-combination of friction clutch and mechanical locking clutch | |
| US7189182B2 (en) | Transmission clutch control system | |
| CN108443433B (en) | Single-actuator type two-gear transmission for electric vehicle | |
| US9321435B2 (en) | Valve integrated park inhibit solenoid assembly | |
| CN100441896C (en) | Electrohydraulic clutch assembly | |
| US4732253A (en) | Power transmission | |
| US8844392B2 (en) | Electro-hydraulic and electro-mechanical control system for a dual clutch transmission | |
| EP2251569B1 (en) | Shift hydraulic actuator | |
| US20100267508A1 (en) | Direct drive electric shift two speed planetary gearbox | |
| WO2015106597A1 (en) | Built-in synchronizer and shift control mechanism thereof | |
| CN108426031B (en) | Single-control interlocking type electric automobile transmission gear shifting mechanism and transmission | |
| KR101236152B1 (en) | Lever applied dry clutch | |
| US7931135B2 (en) | Multi-area clutch assembly | |
| US6672180B2 (en) | Manual transmission with upshift and downshift synchronization clutches | |
| US9518621B2 (en) | Clutch arrangement comprising a shift piston and a piston housing | |
| JPH02292553A (en) | Planetary speed change gear | |
| KR20090021263A (en) | Gearshift interlock | |
| CN112178069B (en) | Hydrostatic clutch shifts and executes structure, gearbox and car | |
| CN215487552U (en) | Transmission and vehicle | |
| CN214305094U (en) | Parallel shaft type transmission | |
| JP2581965B2 (en) | Power transmission device | |
| JP3197878B2 (en) | Dual clutch forward / backward shifter unit | |
| US20090250309A1 (en) | Hydraulic Shift System for Power Transfer Devices | |
| CN210859779U (en) | Electric gear selecting and shifting mechanism of automatic gearbox | |
| US11859696B2 (en) | Module for a system for synchronizing and driving a transmission gearbox countershaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221019 Address after: 237000 Gao Cheng East Road, Lu'an Economic Development Zone, Anhui Patentee after: ANHUI XINGRUI GEAR-TRANSMISSION Co.,Ltd. Address before: No.99, Ziyun Road, economic and Technological Development Zone, Hefei City, Anhui Province Patentee before: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. |