CN110985561A - Clutch actuating mechanism, clutch and automobile - Google Patents
Clutch actuating mechanism, clutch and automobile Download PDFInfo
- Publication number
- CN110985561A CN110985561A CN201911380453.0A CN201911380453A CN110985561A CN 110985561 A CN110985561 A CN 110985561A CN 201911380453 A CN201911380453 A CN 201911380453A CN 110985561 A CN110985561 A CN 110985561A
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- shaft
- shaft sleeve
- worm
- sleeve hole
- clutch
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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
- F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
- F16D23/12—Mechanical clutch-actuating mechanisms arranged outside the clutch as such
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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
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/102—Actuator
- F16D2500/1021—Electrical type
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a clutch actuating mechanism, a clutch and an automobile, wherein the clutch actuating mechanism comprises: a housing; one end of the worm is rotationally connected with an output shaft on the motor on the shell; the worm gear is meshed with a worm wheel in the worm gear shaft assembly; a second-stage sector gear in the second-stage sector gear shaft assembly is meshed with a second-stage driving gear in the worm gear shaft assembly; one end of the tappet is hinged with a crank rocker arm in a crank rocker arm mechanism in the two-stage sector gear shaft assembly, and the other end of the tappet is connected with a piston in a master pump on the shell. The above-mentioned scheme that this application provided, the moment of torsion that comes is transmitted with the motor through the worm wheel meshing in worm and the worm shaft subassembly is first order and enlargies, and the second level is enlargied with the moment of torsion that the motor transmission comes to the meshing of rethread second grade driving gear meshing and second grade sector gear, and then has realized the two-stage speed reduction for the clutch possesses bigger velocity ratio, and bigger driving force, and the practicality is wider.
Description
Technical Field
The invention relates to the technical field of clutches, in particular to a clutch actuating mechanism, a clutch and an automobile.
Background
With the rapid development of automobile industry in China, the market share of the traditional manual transmission is lower and lower, the trend of reducing the fatigue of drivers and completely liberating left feet is more and more obvious, and AMT: the fully-electric-controlled mechanical automatic transmission (AMT) is obtained by adding a gear selecting and shifting mechanism, a clutch actuating mechanism and a Transmission Control Unit (TCU) on the existing manual transmission and upgrading the existing manual transmission, has the advantages of high efficiency and reliability of the traditional manual transmission, good fuel economy and maintainability and the like, and is the first choice of the automatic transmission matched with commercial vehicles.
The automatic clutch actuating mechanism is a core component of the AMT, and plays an important role in the AMT. How to accurately control the combination and separation actions of the clutch becomes a key for evaluating the quality of the gear shifting of the AMT for a long time, and the automatic clutch mechanism is required to be fast in combination and separation actions and small in impact and is also required to work safely and reliably in the service life cycle of the whole vehicle. At present, most of automatic clutch actuating mechanisms adopt a hydraulic control mechanism which consists of an oil electromagnetic valve, an oil cylinder and the like, and the structure is complex and has high cost. And an electric crossed shaft helical gear self-locking mechanism is adopted, so that the efficiency is lower. The pneumatic clutch actuating mechanism is also used in the field of heavy commercial vehicles, generally comprises a cylinder, a piston and an electromagnetic valve, and is less applied in the fields of passenger vehicles and light commercial vehicles due to the limitation of air sources and volumes.
At present, the existing AMT automatic clutch mechanism in the market mostly adopts a motor to connect a worm gear and a worm, the rotation motion of the worm gear is converted into axial thrust through a crank rocker arm through speed reduction and torque increase, a separation shifting fork is pushed to complete the forward and backward movement of a separation bearing, the mechanism brings pressure to the motor in order to prevent the backward movement in the forward process, an automatic lock mechanism with lower efficiency is generally adopted, the target of short-time quick separation at present is difficult to realize, and meanwhile, the single-stage worm gear speed reduction and torque increase and a non-power-assisted clutch scheme are difficult to realize in the field of large-.
Disclosure of Invention
In view of the above, it is necessary to provide a clutch actuator, a clutch and an automobile, which solve the problem that a transmission torque is small because a general clutch actuator is single-stage speed reduction.
The invention provides a clutch actuator, comprising:
a housing;
the worm is rotationally arranged in the shell along the axial direction of the worm, and one end of the worm is rotationally connected with an output shaft on the motor on the shell;
the worm gear shaft assembly is fixedly arranged in the shell, and the worm is meshed with a worm gear in the worm gear shaft assembly;
the second-stage sector gear shaft assembly is fixedly arranged in the shell, and a second-stage sector gear in the second-stage sector gear shaft assembly is meshed with a second-stage driving gear in the worm gear shaft assembly;
and the tappet is arranged in the shell, one end of the tappet is hinged with a crank rocker arm in a crank rocker arm mechanism in the two-stage sector gear shaft assembly, and the other end of the tappet is connected with a piston in a master pump on the shell.
Above-mentioned clutch actuating mechanism, the moment of torsion that comes is transmitted with the motor through the worm wheel meshing in worm and the worm wheel axle subassembly is first order and enlargies, and the second level is enlargied with the moment of torsion that the motor transmission comes to the meshing of rethread second grade driving gear meshing and second grade sector gear, and then has realized the two-stage speed reduction for the clutch has bigger velocity ratio, and bigger driving force, and the AMT torque platform of matching is also wider, and the practicality is wider.
In one embodiment, the worm gear shaft assembly further comprises a worm gear shaft, the worm gear shaft is rotatably arranged in the shell along the axial direction of the worm gear shaft, and the axial direction of the worm gear shaft is perpendicular to the axial direction of the worm;
the shaft hole on the worm wheel and the shaft hole on the secondary driving gear are in interference fit with the worm wheel shaft, and the diameter of the secondary driving gear is smaller than that of the worm wheel.
In one embodiment, the secondary sector gear shaft assembly further comprises a secondary sector gear shaft, the secondary sector gear shaft is rotatably arranged in the shell along the axial direction of the secondary sector gear shaft, and the axial direction of the secondary sector gear shaft is parallel to the axial direction of the worm wheel; and the shaft hole on the crank rocker and the shaft hole on the second-stage sector gear are in interference fit with the second-stage sector gear shaft.
In one embodiment, the secondary sector gear shaft is provided with a bulge along the radial direction thereof, and the bulge divides the secondary sector gear shaft into a first rotating shaft and a second rotating shaft which are spaced;
and a sixth shaft sleeve hole on the second-stage sector gear is matched with the first rotating shaft, and a second shaft sleeve hole on the crank rocker arm is matched with the second rotating shaft.
In one embodiment, the crank rocker arm mechanism further comprises a connecting pin and a cylindrical pin, one end of the connecting pin is connected with a fifth shaft sleeve hole arranged on the periphery of the second shaft sleeve hole through the cylindrical pin, and the other end of the connecting pin is in threaded connection with the tappet.
In one embodiment, two coaxial fifth shaft sleeve holes are arranged on the periphery of the second shaft sleeve hole on the crank rocker arm, and the two fifth shaft sleeve holes are distributed at intervals along the axial direction of the second shaft sleeve hole;
one end, close to the fifth shaft sleeve hole, of the connecting pin is provided with a first shaft sleeve hole, the first shaft sleeve hole is located between the two fifth shaft sleeve holes, and the cylindrical pin penetrates through the fifth shaft sleeve hole and then is connected with the first shaft sleeve hole.
In one embodiment, a third shaft sleeve hole is further arranged in the circumferential direction of the second shaft sleeve hole, and the third shaft sleeve hole and the fifth shaft sleeve hole are arranged at intervals;
the power assisting device is characterized by further comprising a power assisting assembly, wherein one end of the power assisting assembly is connected with the shell, and the other end of the power assisting assembly is connected with the third shaft sleeve hole.
In one embodiment, the booster assembly comprises a spring and a spring coupling pin; one end of the spring is connected with the inner wall of the shell, and the other end of the spring is connected with the third shaft sleeve hole through the spring connecting pin.
In one embodiment, a fourth shaft sleeve hole is further arranged in the circumferential direction of the second shaft sleeve hole, and the fourth shaft sleeve hole, the third shaft sleeve hole and the fifth shaft sleeve hole are respectively spaced;
the angle detection assembly penetrates through the fourth shaft sleeve hole and then is connected with the second-stage sector gear.
In one embodiment, the angle detection assembly includes an angle sensor, a link, and a sensor fixing plate;
the angle sensor is arranged on the shell;
one end of the sensor fixing piece is rotatably connected with the bottom surface of the angle sensor, and the other end of the sensor fixing piece can rotate along the axial direction of the connecting rod;
one end of the connecting rod is fixed on the second-stage sector gear, and the other end of the connecting rod penetrates through the fourth shaft sleeve hole and then is rotatably connected with the sensor fixing plate.
In one embodiment, a sensor rotating shaft is arranged at one end of the sensor fixing piece, and the sensor fixing piece is rotatably connected with the bottom surface of the angle sensor through the sensor rotating shaft;
one end of the connecting rod, which is far away from the second-level sector gear, penetrates through the fourth shaft sleeve hole, is positioned in the opening end and is tightly attached to the upper arm of the sensor fixing piece.
The invention further provides a clutch, which comprises a clutch body and the clutch actuating mechanism, wherein the clutch actuating mechanism is installed on the clutch body.
The invention also provides an automobile which comprises an automobile body and the clutch as described in the embodiment of the application, wherein the clutch is installed on the automobile body.
Drawings
FIG. 1 is a schematic diagram of a clutch actuator according to an embodiment of the present invention;
FIG. 2 is a schematic view of the worm gear shaft assembly of FIG. 1;
FIG. 3 is a schematic view of the two-stage sector shaft assembly of FIG. 1;
FIG. 4 is an exploded view of FIG. 3;
FIG. 5 is a schematic view of the sensor stator of FIG. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment of the present invention, as shown in fig. 1, a clutch actuator is provided, comprising a housing 3, a worm 5, a worm-gear shaft assembly 4, a two-stage fan-gear shaft assembly 8 and a tappet 18, the worm 5 is rotatably arranged in the shell 3 along the axial direction of the worm, one end of the worm 5 is rotatably connected with an output shaft on a motor 6 on the shell 3, the worm wheel shaft assembly 4 is fixedly arranged in the shell 3, the worm 5 is meshed with a worm wheel 11 in the worm wheel shaft assembly 4, the second-stage sector gear shaft assembly 8 is fixedly arranged in the shell 3, a second-stage sector gear 17 in the second-stage sector gear shaft assembly 8 is meshed with a second-stage driving gear 12 in the worm wheel shaft assembly 4, the tappet 18 is arranged in the shell 3, one end of the tappet 18 is hinged with a crank rocker arm 15 in a crank rocker arm mechanism 2 in the second-stage sector gear shaft assembly 8, and the other end of the tappet 18 is connected with a piston in a master.
Specifically, as shown in fig. 1 to 3, the worm-gear shaft assembly 4 in this embodiment further includes a worm-gear shaft 13, the worm-gear shaft 13 is rotatably disposed in the housing 3 along an axial direction thereof, that is, both ends of the worm-gear shaft 13 are connected to the housing 3 through bearings, the axial direction of the worm-gear shaft 13 is perpendicular to the axial direction of the worm 5, the worm gear 11 and the secondary driving gear 12 are mounted on the worm-gear shaft 13, and the axial hole of the worm gear 11 and the axial hole of the secondary driving gear 12 are in interference fit with the worm-gear shaft 13, and the diameter of the secondary driving gear 12 is smaller than the diameter of the worm.
Second grade sector gear axle subassembly 8 still includes second grade sector gear axle 16, second grade sector gear axle 16 rotates along its axial and sets up in casing 3, both ends of second grade sector gear axle 16 all are connected with casing 3 through the bearing promptly, and the axial of second grade sector gear axle 16 is parallel to each other with the axial of worm wheel 11, crank rocking arm 15 and second grade sector gear 17 are all installed at second grade sector gear axle 16, and the shaft hole on crank rocking arm 15 and the shaft hole on the second grade sector gear 17 all with second grade sector gear axle 16 interference fit, second grade sector gear 17 meshes with second grade driving gear 12 simultaneously.
The motor 6 is fixed on the shell 3 through a bolt, further, the motor 6 can select a direct current brush motor, after the motor 6 is fixed, an output shaft of the motor 6 penetrates through the shell 3 and is rotationally connected with a worm 5 arranged in the shell 3, one end of the worm 5 far away from the output shaft of the motor 6 is rotationally arranged in the shell 3 through a bearing, when the motor 6 rotates in a forward direction (facing to the anticlockwise rotation direction of a motor shaft), the output shaft of the motor 6 drives the worm 5 to rotate, because the worm 5 is meshed with a worm wheel 11 fixedly arranged in a worm wheel shaft assembly 4 in the shell 3, when the worm 5 rotates, the worm wheel 11 is also driven to rotate, because the worm wheel 11 is in interference fit with the worm wheel shaft 13, when the worm wheel 11 rotates, the worm wheel shaft 13 also rotates synchronously, further because a secondary driving gear 12 is also in interference fit with the worm wheel shaft 13, when the worm wheel shaft 13 rotates, the second-stage driving gear 12 can also synchronously rotate, because the second-stage sector gear 17 is meshed with the second-stage driving gear 12, when the second-stage driving gear 12 rotates, the second-stage sector gear 17 can also be driven to rotate, because the second-stage sector gear 17 is in interference fit with the second-stage sector gear shaft 16, when the second-stage sector gear 17 rotates, the second-stage sector gear shaft 16 can also synchronously rotate, because the crank rocker arm 15 is also in interference fit with the second-stage sector gear shaft 16, when the second-stage sector gear shaft 16 rotates, the crank rocker arm 15 can also synchronously rotate, the rotary motion is changed into horizontal motion by the crank rocker arm 15 to push the tappet 18 to do reciprocating linear motion, the tappet 18 pushes a piston inside the master cylinder 9 to form a high-pressure oil cavity, high-pressure oil is injected into a transmission release bearing through the metal pipe 10, and finally a dry clutch.
It should be noted that the above-mentioned matching relationship between the worm wheel and the worm wheel shaft, the matching relationship between the secondary driving gear and the worm wheel shaft, the matching relationship between the crank rocker and the secondary sector gear shaft, and the matching relationship between the secondary sector gear and the secondary sector gear shaft are only examples, and in other alternative schemes, other connection structures may be adopted, for example, the worm wheel and the worm wheel shaft, the secondary driving gear and the worm wheel shaft, the crank rocker and the secondary sector gear shaft, and the secondary sector gear shaft are all connected by welding. The application does not make special restrictions on the matching relationship between the worm wheel and the worm wheel shaft, the matching relationship between the secondary driving gear and the worm wheel shaft, the matching relationship between the crank rocker and the secondary sector gear shaft, and the matching relationship between the secondary sector gear and the secondary sector gear shaft, as long as the structure can achieve the purpose of the application.
In some embodiments, in order to make the worm wheel 11 and the worm 5 self-lock, the helix angle (not indicated in the figures) of the worm 5 in the present application is smaller than the friction angle (not indicated in the figures) of the worm wheel and worm contact. Because the worm wheel 11 and the worm 5 can be self-locked, when the motor 6 is not powered, the motor can be stopped at any position, thereby reducing the load of the motor 6 and prolonging the service life of the motor 6.
In some embodiments, as shown in fig. 4, in order to arrange the secondary sector gear 17 and the crank arm 15 on the secondary sector shaft 16 at intervals, the present application is provided with a protrusion 1601 on the secondary sector shaft 16 along the radial direction thereof, the protrusion 1601 dividing the secondary sector shaft 16 into a first rotating shaft 1602 and a second rotating shaft 1603 at intervals; the sixth bushing hole 1702 on the second-stage sector gear 17 is in interference fit with the first rotating shaft 1602, and the second bushing hole 1501 on the crank rocker arm 15 is in interference fit with the second rotating shaft 1603.
In some embodiments, as shown in fig. 3 and 4, the crank rocker arm mechanism 2 of the present application further includes a connecting pin 14 and a cylindrical pin 19, wherein one end of the connecting pin 14 is connected to a fifth shaft sleeve hole 1504 circumferentially disposed on the second shaft sleeve hole 1501 through the cylindrical pin 19, and the other end is threadedly connected to the tappet 18.
Furthermore, two coaxial fifth shaft sleeve holes 1504 are arranged on the periphery of a second shaft sleeve hole 1501 on the crank rocker arm 15, the two fifth shaft sleeve holes 1504 are distributed at intervals along the axial direction of the second shaft sleeve hole 1501, a first shaft sleeve hole 1401 is arranged at one end, close to the fifth shaft sleeve hole 1504, of the connecting pin 14, and during assembly, the first shaft sleeve hole 1401 at one end of the connecting pin 14 is placed between the two fifth shaft sleeve holes 1504, and then penetrates through the fifth shaft sleeve hole 1504 through a cylindrical pin 19 to be connected with the first shaft sleeve hole 1401; while the end of the connecting pin 14 remote from the first bushing hole 1401 is provided with an internal thread (not indicated in the figure) and the end of the tappet 18 close to the connecting pin 14 is provided with an external thread, and the connecting pin 14 is connected with the external thread on the tappet 18 through the internal thread thereon.
When the crank rocker arm 15 rotates, the fifth shaft sleeve hole 1504 on the crank rocker arm 15 is driven to move through the cylindrical pin 19 and the connecting pin 14 can drive the tappet 18 to move, so that the crank rocker arm 15 changes the rotary motion into the horizontal motion to push the tappet 18 to reciprocate linearly, the tappet 18 pushes the piston in the master cylinder 9 to form a high-pressure oil chamber, the high-pressure oil is injected into the transmission release bearing through the metal pipe 10, and finally the dry clutch diaphragm spring on the engine flywheel is pushed to complete the release action.
Further, as shown in fig. 4, in order to prevent the first shaft sleeve hole 1401 on the connecting pin 14 from falling off from between the two fifth shaft sleeve holes 1504, a blocking piece 1901 is arranged at one end of the cylindrical pin 19, the diameter of the blocking piece 1901 is larger than that of the fifth shaft sleeve hole 1504, the other end of the cylindrical pin 19 is matched with the snap ring 20, and the outer diameter of the snap ring 20 is also larger than that of the fifth shaft sleeve hole 1504.
Specifically, when the connecting pin 14 and the crank rocker arm 15 are assembled, the first shaft sleeve hole 1401 in the connecting pin 14 is firstly placed between the two fifth shaft sleeve holes 1504, and then the cylindrical pin 19 passes through one of the fifth shaft sleeve holes 1504, the first shaft sleeve hole 1401 and the other fifth shaft sleeve hole 1504 in sequence, and then the end of the cylindrical pin 19, which is far away from the blocking piece 1901, is clamped by the snap ring 20. Because the diameter of the baffle 1901 at one end of the cylindrical pin 19 is larger than that of the fifth shaft sleeve hole 1504, and the diameter of the other end of the cylindrical pin after being clamped by the snap ring 20 is also larger than that of the fifth shaft sleeve hole 1504, the cylindrical pin 19 can be stably connected to the first shaft sleeve hole 1401 and the fifth shaft sleeve hole 1504, and the connecting pin 14 is prevented from falling off from the crank rocker arm 15.
In some embodiments, as shown in fig. 1, 3 and 4, since the power required for the clutch is generally large and the output power of the motor is insufficient, in order to push the tappet 18 linearly, the present application further includes a power assisting assembly having one end connected to the housing 3 and the other end connected to a third boss hole 1502 circumferentially disposed on the second boss hole 1501.
Specifically, the boosting assembly comprises a spring 1 and a spring connecting pin 21, wherein one end of the spring 1 is connected with the inner wall of the shell 3, the other end of the spring 1 is connected with a third shaft sleeve hole 1502 through the spring connecting pin 21, and the third shaft sleeve hole 1502 and a fifth shaft sleeve hole 1504 are arranged in the circumferential direction of the second shaft sleeve hole 1501 at intervals. When the output of the electric motor 6 is insufficient, the spring force of the spring 1 can also be transmitted to the connecting pin 14 and thus to the tappet 18 via the rocker arm 15, so that the clutch can be pushed out of engagement together with the force transmitted by the electric motor 6.
In some embodiments, as shown in fig. 1, 4 and 5, in order to detect the rotation angle of the second stage sector gear 17, the present application further includes an angle detection assembly, which passes through a fourth shaft sleeve hole 1503 circumferentially disposed on the second shaft sleeve hole 1501 and then is connected to the second stage sector gear 17.
Specifically, the angle detection assembly includes an angle sensor 7, a connecting rod 1701 and a sensor fixing plate 22, wherein the angle sensor 7 is provided with a screw hole 701, the angle sensor 7 is fixed on the housing 3 through the screw hole 701 by a bolt, one end of the sensor fixing plate 22 is rotatably connected with the bottom surface of the angle sensor 7, the other end of the sensor fixing plate 22 is rotatable along the axial direction of the connecting rod 1701, one end of the connecting rod 1701 is fixed on the second-stage sector gear 17, and the other end of the connecting rod 1701 is rotatably connected with the sensor fixing plate 22 after passing through the fourth shaft sleeve hole 1503. When the crank rocker 15 rotates, the fourth shaft sleeve hole 1503 on the crank rocker 15 rotates synchronously, and the connecting rod 1701 penetrates through the fourth shaft sleeve hole 1503, so that the connecting rod 1701 is driven to rotate when the fourth shaft sleeve hole 1503 rotates, and because one end of the connecting rod 1701, which is far away from the second-stage sector gear 17, is rotatably connected with the sensor fixing plate 22, when the connecting rod 1701 moves leftwards and rightwards, the sensor fixing plate 22 is driven to move leftwards and rightwards, and because the sensor fixing plate 22 is rotatably connected with the bottom surface of the angle sensor 7, the angle sensor 7 can detect the rotating angle of the sensor fixing plate 22 when the sensor fixing plate 22 rotates, and further detect the rotating angle of the second-stage sector gear 17.
Further, as shown in fig. 5, a sensor fixing plate 22 in the present application is provided with a sensor rotating shaft 2201 at one end, and the sensor fixing plate 22 is rotatably connected to the bottom surface of the angle sensor 7 through the sensor rotating shaft 2201; the end of the link 1701 remote from the second stage sector gear 17 passes through the fourth shaft sleeve hole 1503 and is located in the open end 2202, and is in close contact with the upper arm 2203 of the sensor fixing plate 22.
The invention also provides a clutch, which comprises a clutch body and a clutch actuating mechanism as described in any one of the embodiments of the application, wherein the clutch actuating mechanism is arranged on the clutch body.
The invention also provides an automobile which comprises an automobile body and the clutch as described in the embodiment of the application, wherein the clutch is installed on the automobile body.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the protective scope of the invention. Therefore, the protection scope of the patent of the invention should be subject to the appended claims.
Claims (13)
1. A clutch actuator, comprising:
a housing (3);
the worm (5) is rotationally arranged in the shell (3) along the axial direction of the worm (5), and one end of the worm (5) is rotationally connected with an output shaft on a motor (6) on the shell (3);
the worm gear shaft assembly (4), the worm gear shaft assembly (4) is fixedly arranged in the shell (3), and the worm (5) is meshed with a worm gear (11) in the worm gear shaft assembly (4);
the two-stage sector gear shaft assembly (8) is fixedly arranged in the shell (3), and a two-stage sector gear (17) in the two-stage sector gear shaft assembly (8) is meshed with a two-stage driving gear (12) in the worm gear shaft assembly (4);
a tappet (18), wherein the tappet (18) is arranged in the housing (3), one end of the tappet (18) is hinged with a crank rocker arm (15) in a crank rocker arm mechanism (2) in the two-stage sector gear shaft assembly (8), and the other end of the tappet (18) is connected with a piston in a master pump (9) on the housing (3).
2. The clutch actuator according to claim 1, wherein the worm gear shaft assembly (4) further comprises a worm gear shaft (13), the worm gear shaft (13) is rotatably disposed in the housing (3) along an axial direction thereof, and an axial direction of the worm gear shaft (13) and an axial direction of the worm (5) are perpendicular to each other;
the shaft hole in the worm wheel (11) and the shaft hole in the secondary driving gear (12) are in interference fit with the worm wheel shaft (13), and the diameter of the secondary driving gear (12) is smaller than that of the worm wheel (11).
3. A clutch actuator according to claim 2, characterized in that the secondary sector shaft assembly (8) further comprises a secondary sector shaft (16), the secondary sector shaft (16) is rotatably disposed in the housing (3) along an axial direction thereof, and an axial direction of the secondary sector shaft (16) and an axial direction of the worm wheel (11) are parallel to each other; and the shaft hole on the crank rocker arm (15) and the shaft hole on the secondary sector gear (17) are in interference fit with the secondary sector gear shaft (16).
4. A clutch actuator according to claim 3 characterised in that the secondary sector shaft (16) is provided with a projection (1601) radially thereof, the projection (1601) dividing the secondary sector shaft (16) into first and second spaced shafts (1602, 1603);
and a sixth shaft sleeve hole (1702) on the two-stage sector gear (17) is matched with the first rotating shaft (1602), and a second shaft sleeve hole (1501) on the crank rocker arm (15) is matched with the second rotating shaft (1603).
5. A clutch actuator according to claim 4, characterized in that the crank arm mechanism (2) further comprises a connecting pin (14) and a cylindrical pin (19), one end of the connecting pin (14) is connected with a fifth shaft sleeve hole (1504) circumferentially arranged in the second shaft sleeve hole (1501) through the cylindrical pin (19), and the other end is threadedly connected with the tappet (18).
6. The clutch actuator according to claim 5, characterized in that the second shaft sleeve hole (1501) on the crank rocker arm (15) is circumferentially provided with two coaxial fifth shaft sleeve holes (1504), and the two fifth shaft sleeve holes (1504) are distributed at intervals along the axial direction of the second shaft sleeve hole (1501);
one end of the connecting pin (14) close to the fifth shaft sleeve holes (1504) is provided with a first shaft sleeve hole (1401), the first shaft sleeve hole (1401) is positioned between the two fifth shaft sleeve holes (1504), and the cylindrical pin (19) penetrates through the fifth shaft sleeve holes (1504) and then is connected with the first shaft sleeve hole (1401).
7. The clutch actuator according to claim 5, characterized in that the second shaft sleeve hole (1501) is further provided with a third shaft sleeve hole (1502) in the circumferential direction, and the third shaft sleeve hole (1502) is arranged at a distance from the fifth shaft sleeve hole (1504);
the power assisting device is characterized by further comprising a power assisting assembly, wherein one end of the power assisting assembly is connected with the shell (3), and the other end of the power assisting assembly is connected with the third shaft sleeve hole (1502).
8. Clutch actuator according to claim 7, wherein the booster assembly comprises a spring (1) and a spring connecting pin (21);
one end of the spring (1) is connected with the inner wall of the shell (3), and the other end of the spring is connected with the third shaft sleeve hole (1502) through the spring connecting pin (21).
9. The clutch actuator according to claim 7, characterized in that a fourth shaft sleeve hole (1503) is further arranged on the second shaft sleeve hole (1501) in the circumferential direction, and the fourth shaft sleeve hole (1503), the third shaft sleeve hole (1502) and the fifth shaft sleeve hole (1504) are respectively spaced;
the angle detection assembly penetrates through the fourth shaft sleeve hole (1503) and then is connected with the second-stage sector gear (17).
10. The clutch actuator as claimed in claim 9, characterized in that the angle detection assembly includes an angle sensor (7), a link (1701), and a sensor fixing plate (22);
the angle sensor (7) is arranged on the shell (3);
one end of the sensor fixing piece (22) is rotatably connected with the bottom surface of the angle sensor (7), and the other end of the sensor fixing piece can rotate along the axial direction of the connecting rod (1701);
one end of the connecting rod (1701) is fixed on the second-stage sector gear (17), and the other end of the connecting rod passes through the fourth shaft sleeve hole (1503) and then is rotatably connected with the sensor fixing plate (22).
11. The clutch actuator according to claim 10, wherein a sensor rotating shaft (2201) is provided at one end of the sensor fixing plate (22), and the sensor fixing plate (22) is rotatably connected to the bottom surface of the angle sensor (7) through the sensor rotating shaft (2201);
one end of the connecting rod (1701) far away from the second-stage sector gear (17) penetrates through the fourth shaft sleeve hole (1503) and then is positioned in the opening end (2202), and is tightly attached to an upper arm (2203) of the sensor fixing piece (22).
12. A clutch comprising a clutch body and a clutch actuator according to any of claims 1 to 11, said clutch actuator being mounted on said clutch body.
13. An automobile comprising an automobile body and the clutch of claim 10, wherein the clutch is mounted on the automobile body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380453.0A CN110985561A (en) | 2019-12-27 | 2019-12-27 | Clutch actuating mechanism, clutch and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380453.0A CN110985561A (en) | 2019-12-27 | 2019-12-27 | Clutch actuating mechanism, clutch and automobile |
Publications (1)
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| CN110985561A true CN110985561A (en) | 2020-04-10 |
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| CN201911380453.0A Pending CN110985561A (en) | 2019-12-27 | 2019-12-27 | Clutch actuating mechanism, clutch and automobile |
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