CN212690169U - Thermostat main ball valve of automobile engine, electric actuator thereof and multi-stage gear transmission mechanism - Google Patents
Thermostat main ball valve of automobile engine, electric actuator thereof and multi-stage gear transmission mechanism Download PDFInfo
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- CN212690169U CN212690169U CN202020717295.5U CN202020717295U CN212690169U CN 212690169 U CN212690169 U CN 212690169U CN 202020717295 U CN202020717295 U CN 202020717295U CN 212690169 U CN212690169 U CN 212690169U
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Abstract
The utility model discloses a thermostat main ball valve of an automobile engine, an electric actuator thereof and a multi-stage gear transmission mechanism, wherein the multi-stage gear transmission mechanism comprises a motor, a planetary wheel set and a planet carrier, and the planetary wheel set comprises a gear ring, a sun gear and a plurality of planet gears; one side of the sun wheel is also fixed with a rotating wheel; an output shaft on the planet carrier penetrates through the centers of the sun gear and the rotating wheel and can rotate relative to the sun gear and the rotating wheel; a planet shaft on the planet wheel is fixedly connected with the planet disc; the worm wheel on the output shaft of the motor is meshed or in transmission connection with the worm wheel through a gear; the worm rotates to drive the rotating wheel and the sun wheel to rotate; the sun wheel rotates to drive the planet wheel to revolve around the sun wheel in the axial direction and drive the planet carrier to rotate. The multistage gear transmission mechanism has the advantages of compact structure, small occupied space and large output torque; the electric actuator is applied to the electric actuator, the size of the electric actuator can be greatly reduced, the carrying capacity is high, the speed ratio is large, the transmission efficiency is high, and the output torque is large.
Description
Technical Field
The utility model relates to a ball valve formula thermostat field of automobile engine intelligence thermal management system, more specifically say, it relates to automobile engine's thermostat main ball valve and electric actuator, multistage gear drive mechanism thereof.
Background
In a new state of the automobile industry, more and more automobile manufacturers turn their attention to the field of "new technology", in which the demand for "electric technology" of automatic valve actuators such as engine temperature control and battery cooling is wide. The requirements of compact structure, high reliability, high torque, low current, low manufacturing cost and the like of the actuator under severe temperature and vibration environments are particularly important. The electric control actuator of the main ball valve of the existing automobile engine intelligent heat management system in the market generally comprises a box body, a cover plate, a direct current brush motor, a worm and gear and multi-stage straight gear transmission system, a position sensor and other electric devices. Chinese patent application No. cn201610804853.x discloses an actuator driven by a fixed multi-axis spur gear, having low torque density and large volume.
SUMMERY OF THE UTILITY MODEL
The utility model provides a car engine's thermostat ball valve and electric actuator, multistage gear drive, this multistage gear drive's compact structure, occupation space is little, and the transmission is steady, transmission efficiency is high, and the output torque is big.
In order to achieve the above purpose, the utility model provides a following technical scheme: the multistage gear transmission mechanism of the main ball valve electric actuator comprises a motor, a planetary gear set and a planet carrier, wherein the planetary gear set comprises a gear ring and a sun gear arranged on the inner side of the gear ring, a plurality of planet gears are arranged between the gear ring and the sun gear, the inner sides of the planet gears are all meshed with the sun gear, and the outer sides of the planet gears are all meshed with annular inner teeth on the gear ring; a rotating wheel is further fixed on one side of the sun wheel along the axial direction of the sun wheel or integrally formed on one side of the sun wheel;
the planet carrier comprises an output shaft, and the middle part of the output shaft extends along the radial direction of the output shaft to form a star disk; the output shaft penetrates through the centers of the sun wheel and the rotating wheel and can rotate relative to the sun wheel and the rotating wheel; a planet shaft is also rotatably arranged at the central part of the planet wheel, and one end of the planet shaft, which is close to the star disk, is fixedly connected with the star disk;
a worm is arranged on an output shaft of the motor, and the worm is meshed with the rotating wheel or in transmission connection with the rotating wheel through a gear; the worm rotates to drive the rotating wheel and the sun wheel to rotate; the sun gear rotates to drive the planet gear to rotate, the planet gear can revolve around the sun gear in the axial direction and drive the planet carrier to rotate, meanwhile, the planet gear can also rotate around the self axial direction, and the planet carrier rotates and then drives the output shaft to rotate. In the technical scheme, when the worm at the output end of the motor is meshed with the rotating wheel, the worm and the rotating wheel form primary transmission, and the planetary wheel set is secondary transmission; when the worm at the output end of the motor is meshed with the gear, primary transmission is formed between the worm and the gear, secondary transmission is formed between the gear and the rotating wheel, and the planetary wheel set is in three-stage transmission; an output shaft of the motor rotates to drive the worm to rotate, the worm rotates to drive the rotating wheel to rotate or the worm drives the rotating wheel to rotate through the gear, the rotating wheel drives the sun wheel to rotate, the sun wheel drives the planet wheel to axially revolve around the sun wheel, and the planet wheel drives the planet disk and the rotating shaft to rotate; compared with a multi-stage straight gear transmission scheme of a traditional actuator, the multi-stage gear transmission mechanism has the advantages of compact structure, small occupied space, stable transmission, high transmission efficiency and high output torque density; through the multi-stage gear transmission design of the worm and the planetary wheel set, the stable rotation of the output shaft is realized.
Preferably, the worm and the rotating wheel are in transmission connection through a gear set, the gear set comprises at least two gears, and the worm rotates to drive the gear set and the rotating wheel to rotate through the transmission effect of the gear set. The worm rotates to drive the gear on the gear set to rotate, the gear rotates to drive the rotating wheel to rotate, the rotating wheel drives the sun wheel to rotate, the sun wheel drives the planet wheel to axially revolve around the sun wheel, and the planet wheel drives the planet disk and the rotating shaft to rotate.
Preferably, the gear set includes a first gear and a second gear coaxially disposed with the first gear, the first gear and the second gear are fixedly connected or integrally formed, the first gear is engaged with the worm, and the second gear is engaged with the rotating wheel.
Preferably, the first gear has an outer diameter larger than an outer diameter of the second gear.
Preferably, the outer diameter of the runner is larger than the outer diameter of the second gear.
Preferably, the side wall of the rotating wheel close to the sun wheel extends towards the sun wheel to form an annular plate part which is used for abutting against the planet wheel; the planet disk is provided with a plurality of third grooves matched with the planet shafts, the planet shafts are inserted into the third grooves and are fixedly connected with the third grooves, and the third grooves extend towards the planet wheels to form annular bulges used for abutting against the planet wheels; the annular plate part is matched with the annular bulge so as to limit the planet wheel between the annular plate part and the annular bulge. The planet shaft can be integrally coated and molded on the star plate in an injection molding manner.
Preferably, the outer diameter of the planetary gear is smaller than the outer diameter of the sun gear.
Main ball valve electric actuator, including one side open-ended box and be used for sealing the case lid of box, characterized by: the multi-stage gear transmission mechanism of the main ball valve electric actuator is further included, and a motor, a planetary gear set and a planet carrier are mounted in the box body; one end of an output shaft on the planet carrier is rotationally connected with the bottom wall of the box body, the other end of the output shaft on the planet carrier penetrates through the box cover and is rotationally connected with the box cover, and the gear ring is fixed on the box cover; the end part of the inner side of the bottom wall of the box body, which is close to the output shaft, is also provided with a magnetic position sensor, and one end of the output shaft of the planet carrier, which is close to the magnetic position sensor, is provided with a magnetic cake matched with the magnetic position sensor. The multistage gear transmission mechanism is applied to the electric actuator, so that the size of the electric actuator can be greatly reduced, and the electric actuator has high bearing capacity, high speed ratio, safe performance, stable transmission, high transmission efficiency and large output torque; among the above-mentioned technical scheme, the magnetic cake is installed on the output shaft of planet carrier, compares with the traditional scheme of installing on the output gear axle: 1. the magnetic cake is arranged on the planet carrier, so that the process installation is simpler and the risk of the gear is not damaged; 2. the magnetic cake is arranged on the output shaft of the planet carrier and is matched with the position sensor on the PCB board to realize the rotation angle detection and feedback of the output shaft.
Preferably, the gear ring and the box cover are integrally formed; or, the lateral wall of box has a plurality of connection plate portions that are used for with case lid fixed connection to the direction extension all around, has seted up the mounting hole on every connection plate portion, and every mounting hole is embedded to have the bush. The gear ring and the box cover can be designed in an integrated or split mode; the integrated design reduces the number of parts, assembly process flow and manufacturing cost; the split type design can provide various design assembly schemes, and can be fixed on the box body or the box cover, so that the design flexibility is increased. The mounting hole with the bushing can make the electric actuator suitable for severe high-temperature and vibration application environments.
The thermostat main ball valve of the automobile engine comprises the main ball valve electric actuator.
To sum up, the utility model discloses following beneficial effect has:
1. the multi-stage gear transmission mechanism has compact structure, small occupied space, stable transmission, high transmission efficiency and large output torque; the stable rotation of the output shaft is realized through the multi-stage gear transmission design of the worm and the planetary gear set;
2. the multistage gear transmission mechanism is applied to the electric actuator, so that the size of the electric actuator can be greatly reduced, and the electric actuator has high bearing capacity, high speed ratio, safe performance, stable transmission and high transmission efficiency;
3. the magnetic cake of the electric actuator is arranged on the planet carrier, so that the process installation is simpler and the risk of the gear is not damaged; the magnetic cake is arranged on the output shaft of the planet carrier and is matched with the position sensor on the PCB board to realize the rotation angle detection and feedback of the output shaft.
Drawings
Fig. 1 is a schematic structural view of a multistage gear transmission mechanism of the present invention;
fig. 2 is a schematic structural view of the multistage gear transmission mechanism of the present invention without a gear ring;
FIG. 3 is a schematic view of the planetary gear set of the multi-stage gear transmission assembled with the cover;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
FIG. 5 is a schematic view of the sun gear and the runner;
FIG. 6 is a schematic structural view of the assembly of the planet gear, the planet carrier and the case cover;
FIG. 7 is a schematic structural diagram of a planet carrier;
FIG. 8 is a schematic structural view of the planetary gear set assembled with the planetary carrier;
FIG. 9 is an enlarged view taken at A in FIG. 8;
FIG. 10 is a schematic structural view of an electric actuator;
FIG. 11 is a schematic view of the electric actuator with the cover removed;
FIG. 12 is a schematic view of the case cover;
fig. 13 is a schematic structural view of the case.
Reference numerals: 1. a motor; 2. a planet carrier; 3. a toothed ring; 4. a sun gear; 5. a planet wheel; 6. a rotating wheel; 7. an output shaft; 8. a star plate; 9. a planet shaft; 10. a worm; 11. a first gear; 12. a second gear; 13. an annular plate portion; 14. a third groove; 15. an annular projection; 16. a box body; 17. a box cover; 18. a first groove; 19. a support plate; 20. a protruding plate portion; 21. a second groove; 22. a PCB board; 23. magnetic cake; 24. a connecting plate portion; 25. mounting holes; 26. a bushing.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The embodiment discloses a ball valve type thermostat main ball valve of an automobile engine intelligent thermal management system, an electric actuator of the ball valve type thermostat main ball valve and a multi-stage gear transmission mechanism of the ball valve type thermostat main ball valve, and the multi-stage gear transmission mechanism comprises a motor 1, a planetary gear set and a planet carrier 2, wherein the motor 1 is a brush direct current motor 1; the planetary gear set comprises a gear ring 3 and a sun gear 4 arranged on the inner side of the gear ring 3, a plurality of planetary gears 5 are arranged between the gear ring 3 and the sun gear 4 in the radial direction of the sun gear 4, as shown in fig. 3, 4 and 6, the inner sides of the plurality of planetary gears 5 are all meshed with the sun gear 4, and the outer sides of the plurality of planetary gears 5 are all meshed with annular inner teeth on the gear ring 3; as shown in fig. 5, a runner 6 is further fixed or integrally formed on one side of the sun gear 4 along the axial direction of the sun gear 4, the sun gear 4 and the runner 6 are coaxially arranged, and preferably, the outer diameter of the runner 6 is larger than that of the sun gear 4; as shown in fig. 7 and 8, the planet carrier 2 includes an output shaft 7, and a middle portion of the output shaft 7 extends in a radial direction of the output shaft 7 to form a star disk 8; an output shaft 7 penetrates through the centers of the sun gear 4 and the runner 6 and is rotatable relative to the sun gear 4 and the runner 6, and a plurality of planet gears 5 are arranged between the second sun gear 4 and the planet disk 8 in the axial direction of the sun gear 4; a planet shaft 9 which is relatively fixed with the planet wheel 5 is rotatably arranged at the central part of the planet wheel 5, the planet shaft 9 penetrates through the center of the planet wheel 5, the planet wheel 5 can rotate relative to the planet shaft 9, one end, close to the planetary plate 8, of the planet shaft 9 is fixedly connected with the planetary plate 8, the sun wheel 4 drives the planet shaft 9 and the planet wheel 5 to simultaneously rotate, so that the planet shaft 9 and the planet wheel 5 are relatively fixed and jointly revolve around the sun wheel 4, and preferably, the outer diameter of the planet wheel 5 is smaller than that of the sun wheel 4; an output shaft of the motor 1 is provided with a worm 10, and the worm 10 is meshed with the rotating wheel 6 or in transmission connection with the rotating wheel through a gear; the worm 10 rotates to drive the rotating wheel 6 and the sun wheel 4 to rotate; the sun gear 4 rotates to drive the planet gear 5 to rotate, the planet gear 5 can revolve around the sun gear 4 in the axial direction and drive the planet carrier 2 to rotate, meanwhile, the planet gear 5 can also rotate around the self axial direction, and the planet carrier 2 rotates and then drives the output shaft 7 to rotate. In the technical scheme, when the worm 10 at the output end of the motor 1 is meshed with the rotating wheel 6, the worm 10 and the rotating wheel 6 form primary transmission, and the planetary wheel set is secondary transmission; when the worm 10 at the output end of the motor 1 is meshed with the gear, primary transmission is formed between the worm 10 and the gear, secondary transmission is formed between the gear and the rotating wheel 6, and the planetary wheel set is in three-stage transmission; an output shaft 7 of the motor 1 rotates to drive a worm 10 to rotate, the worm 10 rotates to drive a rotating wheel 6 to rotate or the worm 10 drives the rotating wheel 6 to rotate through a gear, the rotating wheel 6 drives a sun wheel 4 to rotate, the sun wheel 4 drives a planet wheel 5 to circumferentially revolve around the sun wheel 4, and the planet wheel 5 drives a planet disk 8 and a rotating shaft to rotate; the multistage gear transmission mechanism has the advantages of compact structure, small occupied space, stable transmission, high transmission efficiency and large output torque; through the multi-stage gear transmission design of the worm 10 and the planetary gear set, the stable rotation of the output shaft 7 is realized.
As shown in fig. 2, a gear set is further arranged between the worm 10 and the rotating wheel 6 and is in transmission connection through the gear set, the gear set comprises at least two gears, and the worm 10 rotates to drive the gear set and the rotating wheel 6 to rotate through the transmission action of the gear set; preferably, the gear set includes a first gear 11 and a second gear 12 coaxially disposed with the first gear 11, and the first gear 11 is fixedly connected to the second gear 12 or integrally formed with the second gear 12, the first gear 11 is engaged with the worm 10, and the second gear 12 is engaged with the runner 6. The worm 10 rotates to drive a gear on the gear set to rotate, the gear rotates to drive the rotating wheel 6 to rotate, the rotating wheel 6 drives the sun wheel 4 to rotate, the sun wheel 4 drives the planet wheel 5 to axially revolve around the sun wheel 4, and the planet wheel 5 drives the star plate 8 and the rotating shaft to rotate. Preferably, the outer diameter of the first gear 11 is larger than the outer diameter of the second gear 12, and the outer diameter of the second gear 12 is smaller than the outer diameter of the runner 6.
Preferably, as shown in fig. 5, 8 and 9, the side wall of the runner 6 close to the sun gear 4 extends in the direction of the sun gear 4 with an annular plate portion 13 for abutting against the planet gears 5; the planet disk 8 is provided with a plurality of third grooves 14 matched with the planet shaft 9, the planet shaft 9 is inserted into the third grooves 14 and is fixedly connected with the third grooves 14, and the third grooves 14 extend towards the planet wheel 5 to form annular bulges 15 which are used for abutting against the planet wheel 5; the annular plate portion 13 cooperates with the annular projection 15 to retain the planet wheels 5 therebetween. Gaps are kept between the planet wheels 5 and the rotating wheel 6 and between the planet wheels 5 and the star wheel 8, and friction caused by contact between the planet wheels 5 and the rotating wheel 6 and the star wheel 8 when the planet wheels 5 rotate is avoided.
The main ball valve electric actuator, as shown in fig. 10 to 13, includes a box 16 with an opening on one side, a box cover 17 for sealing the box 16, and a multi-gear transmission mechanism of the main ball valve electric actuator, wherein a motor 1, a planetary gear set and a planet carrier 2 are installed in the box 16; a first groove 18 for accommodating and fixing the motor 1 is formed on the inner side of the bottom wall of the box 16, support plates 19 for supporting two end parts of the motor 1 are formed on two sides of the first groove 18, two protruding plate parts 20 with arc-shaped cross sections and arranged oppositely extend on one side of the inner side of the bottom wall of the box 16, one end of the output shaft 7 on the planet carrier 2 is rotatably connected with the bottom wall of the box 16, specifically, the end part of the output shaft 7 is rotatably connected between the two protruding plate parts 20 and radially limited by the two protruding plate parts 20, the other end of the output shaft 7 on the planet carrier 2 penetrates through the box cover 17 and is rotatably connected with the box cover 17, a second annular groove 21 for radially limiting the star plate 8 is further formed on the box cover 17, the star plate 8 on the planet carrier 2 is embedded into the second groove 21 and can rotate relative to the second groove 21, and a rotating shaft penetrates through the centers of the first gear 11 and the second gear 12 on, one end of the rotating shaft is fixedly supported with the box body 16, the other end of the rotating shaft is fixedly supported with a shaft hole of the box cover 17, and the gear ring 3 is fixed on the box cover 17; the inboard correspondence of the diapire of box 16 stretches out 20 positions of board and installs PCB board 22, offer on the PCB board 22 and be used for dodging the groove of dodging that stretches out board 20, PCB board 22 pegs graft on PCB board 22 and through the diapire fixed connection of fastener and box 16, the last tip position that is close to output shaft 7 of PCB board 22 still installs magnetism position sensor, the one end that is close to position sensor on the output shaft 7 of planet carrier 2 is installed and is had magnetism cake 23 with magnetism position sensor matched with. The multistage gear transmission mechanism is applied to the electric actuator, so that the size of the electric actuator can be greatly reduced, and the electric actuator has high bearing capacity, high speed ratio, safe performance, stable transmission, high transmission efficiency and large output torque; in the above technical solution, the magnetic cake 23 is installed on the output shaft 7 of the planet carrier 2, compared with the traditional solution installed on the output gear shaft: 1. the magnetic cake 23 is arranged on the planet carrier 2, the process installation is simpler, and the risk of the gear is not damaged; 2. the scheme that the magnetic cake 23 is arranged on the planet carrier 2 is matched with the magnetic position sensor on the PCB 22 to realize the rotation angle detection and feedback of the output shaft 7.
Preferably, the toothed ring 3 is integrally formed with the box cover 17; the gear ring 3 and the box cover 17 can be designed in an integrated or split mode; the integrated design reduces the number of parts, assembly process flow and manufacturing cost; the split design can provide multiple design and assembly schemes, and design flexibility is improved. In addition, the side wall of the box 16 extends in the circumferential direction to form a plurality of connecting plate portions 24 for being fixedly connected with the box cover 17, each connecting plate portion 24 is provided with a mounting hole 25, each mounting hole 25 is embedded with a bushing 26, and the mounting holes 25 with the bushings 26 can enable the electric actuator to be suitable for severe high-temperature and vibrating application environments.
The thermostat main ball valve of the automobile engine comprises the main ball valve electric actuator, an inner spline hole of an output shaft 7 of the electric actuator is matched and connected with a spline shaft of the main ball valve, a mounting hole 25 of the electric actuator and a main ball valve mounting hole are fixed through a bolt, a magnetic position sensor on a PCB 22 is matched to realize corner detection and feedback of the output shaft 7, the output shaft 7 is linked with the spline of the ball valve, and the accurate control of the opening degree of the ball valve is realized. The electric actuator is mainly applied to a main ball valve of a ball valve type thermostat of an intelligent thermal management system of an automobile engine. The electric actuator is used for a ball valve driving electric actuator with an angular position feedback signal of a ball valve type thermostat of an automobile engine, and can realize accurate control of the opening of a ball valve, so that the flow of cooling liquid is controlled, more accurate engine temperature control is achieved, and the fuel efficiency of the engine is improved to the maximum extent. Through adopting the multistage gear drive design that contains worm gear 10 and planetary wheel group, the utility model discloses a steady transmission, compact structure, transmission efficiency is high, structural strength is high, the transmission reliability is high, long service life, output torque is big, the performance safety, assembly scheme is simple relatively, is applicable to the application environment in the engine compartment of adverse temperature and vibration.
The directions given in the present embodiment are merely for convenience of describing positional relationships between the respective members and the relationship of fitting with each other. It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The multistage gear transmission mechanism of the main ball valve electric actuator is characterized by comprising a motor (1), a planetary wheel set and a planetary carrier (2), wherein the planetary wheel set comprises a gear ring (3) and a sun gear (4) arranged on the inner side of the gear ring (3), a plurality of planetary wheels (5) are arranged between the gear ring (3) and the sun gear (4), the inner sides of the planetary wheels (5) are all meshed with the sun gear (4), and the outer sides of the planetary wheels (5) are all meshed with annular inner teeth on the gear ring (3); a rotating wheel (6) is further fixed on one side of the sun wheel (4) along the axial direction of the sun wheel (4) or integrally formed on one side of the sun wheel (4);
the planet carrier (2) comprises an output shaft (7), and the middle part of the output shaft (7) extends along the radial direction of the output shaft (7) to form a star plate (8); the output shaft (7) penetrates through the centers of the sun wheel (4) and the rotating wheel (6) and can rotate relative to the sun wheel (4) and the rotating wheel (6); a planet shaft (9) is also rotatably arranged at the central part of the planet wheel (5), and one end of the planet shaft (9) close to the star plate (8) is fixedly connected with the star plate (8);
a worm (10) is mounted on an output shaft (7) of the motor (1), and the worm (10) is meshed with the rotating wheel (6) or in transmission connection with the rotating wheel through a gear; the worm (10) rotates to drive the rotating wheel (6) and the sun wheel (4) to rotate; sun gear (4) rotate drive planet wheel (5) and rotate, and planet wheel (5) can revolve round sun gear (4) axial and drive planet carrier (2) rotatory, and simultaneously, planet wheel (5) also can be around self axial rotation, and planet carrier (2) are rotatory and then drive output shaft (7) and rotate.
2. The multi-stage gear drive of a main ball valve electric actuator of claim 1, wherein: the worm (10) is in transmission connection with the rotating wheel (6) through a gear set, the gear set comprises at least two gears, and the worm (10) rotates to drive the gear set and the rotating wheel (6) to rotate through the transmission effect of the gear set.
3. The multi-stage gear drive of a main ball valve electric actuator of claim 2, wherein: the gear set comprises a first gear (11) and a second gear (12) which is coaxial with the first gear (11), the first gear (11) and the second gear (12) are fixedly connected or integrally formed, the first gear (11) is meshed with the worm (10), and the second gear (12) is meshed with the rotating wheel (6).
4. The multi-stage gear drive of a main ball valve electric actuator as set forth in claim 3, wherein: the outer diameter of the first gear (11) is larger than the outer diameter of the second gear (12).
5. The multi-stage gear drive of a main ball valve electric actuator as set forth in claim 3, wherein: the outer diameter of the rotating wheel (6) is larger than that of the second gear (12).
6. The multi-stage gear drive of a main ball valve electric actuator as set forth in claim 5, wherein: an annular plate part (13) which is used for abutting against the planet wheel (5) extends towards the direction of the sun wheel (4) from the side wall of the rotating wheel (6) close to the sun wheel (4); a plurality of third grooves (14) matched with the planet shafts (9) are formed in the planet disk (8), the planet shafts (9) are inserted into the third grooves (14) and are fixedly connected with the third grooves (14), and annular protrusions (15) used for abutting against the planet wheels (5) extend from the third grooves (14) to the direction of the planet wheels (5); the annular plate part (13) is matched with the annular bulge (15) so as to limit the planet wheel (5) between the annular plate part and the annular bulge.
7. The multi-stage gear drive of a main ball valve electric actuator of claim 1, wherein: the outer diameter of the planet wheel (5) is smaller than that of the sun wheel (4).
8. Main ball valve electric actuator, including one side open-ended box (16) and be used for sealed case lid (17) of box (16), characterized by: the multi-stage gear transmission mechanism of the main ball valve electric actuator further comprises a multi-stage gear transmission mechanism of the main ball valve electric actuator as claimed in any one of claims 1 to 7, wherein a motor (1), a planetary gear set and a planet carrier (2) are installed in the box body (16); one end of an output shaft (7) on the planet carrier (2) is rotationally connected with the bottom wall of the box body (16), the other end of the output shaft (7) on the planet carrier (2) penetrates through the box cover (17) and is rotationally connected with the box cover (17), and the gear ring (3) is fixed on the box cover (17); the end part position that the diapire inboard of box (16) is close to output shaft (7) still installs position sensor, the output shaft (7) of planet carrier (2) go up the one end that is close to position sensor install with position sensor matched with magnetism cake (23).
9. The main ball valve electric actuator of claim 8, wherein: the gear ring (3) and the box cover (17) are integrally formed; or, the lateral wall of box (16) has a plurality of linking plate portion (24) that are used for with case lid (17) fixed connection to the direction extension all around, has seted up mounting hole (25) on every linking plate portion (24), and every mounting hole (25) is embedded to have bush (26).
10. Thermostat main ball valve of automobile engine, characterized by: comprising the main ball valve electric actuator of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020717295.5U CN212690169U (en) | 2020-04-30 | 2020-04-30 | Thermostat main ball valve of automobile engine, electric actuator thereof and multi-stage gear transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020717295.5U CN212690169U (en) | 2020-04-30 | 2020-04-30 | Thermostat main ball valve of automobile engine, electric actuator thereof and multi-stage gear transmission mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN212690169U true CN212690169U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020717295.5U Active CN212690169U (en) | 2020-04-30 | 2020-04-30 | Thermostat main ball valve of automobile engine, electric actuator thereof and multi-stage gear transmission mechanism |
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| CN (1) | CN212690169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123852A (en) * | 2021-04-22 | 2021-07-16 | 浙江阳明汽车部件有限公司 | Intelligent electronic control thermostat |
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2020
- 2020-04-30 CN CN202020717295.5U patent/CN212690169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123852A (en) * | 2021-04-22 | 2021-07-16 | 浙江阳明汽车部件有限公司 | Intelligent electronic control thermostat |
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