CN216143120U - Actuator for electronic parking - Google Patents
Actuator for electronic parking Download PDFInfo
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- CN216143120U CN216143120U CN202122154954.6U CN202122154954U CN216143120U CN 216143120 U CN216143120 U CN 216143120U CN 202122154954 U CN202122154954 U CN 202122154954U CN 216143120 U CN216143120 U CN 216143120U
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- gear assembly
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Abstract
The present invention provides an actuator for electronic parking, comprising: the device comprises a shell, a motor cover, a machine core gear, a transmission gear assembly, a sun gear assembly, a planetary gear mechanism and a shell cover; one side of the shell is provided with a first accommodating part, and the motor is assembled in the first accommodating part; the other side of the shell is provided with a second accommodating part, and the planetary gear mechanism is assembled in the second accommodating part; the middle part of the shell is connected with a first fixed shaft; the motor cover is arranged at the power output end of the motor, and the outer side of the motor cover is embedded in the first accommodating part of the shell; a first positioning hole is formed in the middle of the motor cover and is embedded on a positioning boss arranged at the power output end of the motor through the first positioning hole; an output shaft of the motor penetrates through the first positioning hole to be connected with a core gear; a second positioning hole is formed in one side, facing the first fixing shaft, of the motor cover; the first fixing shaft penetrates through a second positioning hole in the motor cover, and the transmission gear assembly is assembled on the first fixing shaft; stable operation and simple assembly.
Description
Technical Field
The utility model relates to the technical field of electronic parking on automobiles, in particular to an actuating device for electronic parking.
Background
With the increasing development of the automobile industry, the driving safety demand is increasing day by day, and in order to make a driver drive an automobile more conveniently, safely and quickly, in recent years, the electronic parking technology is rapidly developed and almost becomes the standard of domestic and foreign high-grade automobile models, medium-grade automobile models and even low-grade automobile models, wherein the automobile models comprise small-sized automobiles, medium-sized automobiles and large-sized automobiles; the existing electronic parking actuating mechanism has the defects of complex assembly, gear meshing interference or high noise in the using process.
Disclosure of Invention
Aiming at the defects in the prior art, the embodiment of the utility model provides the actuating device for electronic parking, which solves the problem of center distance deviation of the first-stage gear transmission, reduces noise and is simple and convenient to assemble. In order to achieve the technical purpose, the embodiment of the utility model adopts the technical scheme that:
the embodiment of the utility model provides an executing device for electronic parking, which comprises: the device comprises a shell, a motor cover, a machine core gear, a transmission gear assembly, a sun gear assembly, a planetary gear mechanism and a shell cover;
a first accommodating part is arranged on one side of the shell, and the motor is assembled in the first accommodating part;
a second accommodating part is arranged on the other side of the shell, and the planetary gear mechanism is assembled in the second accommodating part;
the middle part of the shell is connected with a first fixed shaft;
the motor cover is arranged at the power output end of the motor, and the outer side of the motor cover is embedded into the first accommodating part of the shell; a first positioning hole is formed in the middle of the motor cover and is embedded on a positioning boss arranged at the power output end of the motor through the first positioning hole; an output shaft of the motor penetrates through the first positioning hole to be connected with a core gear;
a second positioning hole is formed in one side, facing the first fixing shaft, of the motor cover; the first fixing shaft penetrates through a second positioning hole in the motor cover, and the transmission gear assembly is assembled on the first fixing shaft and can freely rotate;
a second fixed shaft is connected to one side of the shell cover corresponding to the planetary gear mechanism; the sun gear assembly is assembled on the second fixed shaft and can rotate freely;
the drive gear assembly includes a first disk gear and a first central pinion gear; the sun gear assembly includes a second disc gear and a second central pinion gear; the core gear is meshed with a first disc gear of the transmission gear assembly, a first central pinion of the transmission gear assembly is meshed with a second disc gear of the sun gear assembly, and a second central pinion of the sun gear assembly is meshed with the center of a planetary gear set in the planetary gear mechanism; an outer gear ring is arranged on the inner side surface of the second accommodating part of the shell and is meshed with the periphery of a planetary gear set in the planetary gear mechanism;
the shell cover is connected with the shell body.
Further, the side of the motor cover is provided with a plurality of protrusions, the shell is provided with grooves matched with the protrusions, and the protrusions on the outer side of the motor cover are aligned with the grooves in the shell.
Furthermore, the second positioning hole on the motor cover is a notch hole, and the notch of the second positioning hole faces the direction of the first fixing shaft.
Furthermore, a surrounding baffle is arranged on one side of the motor cover, which deviates from the transmission gear assembly.
Furthermore, a first cushion pad is arranged between the bottom end of the motor and the shell, and a second cushion pad is arranged on the inner side of the shell cover corresponding to the motor cover; the shell cover presses the motor cover through the second cushion pad.
Specifically, the planetary gear mechanism comprises a gasket, a planetary gear set and a planet carrier; at least 3 planet shafts are arranged on one side of the planet carrier in a centrosymmetric manner, and the center of the other side of the planet carrier is connected with an output shaft; the planetary gear set comprises at least 3 planetary gears and is respectively assembled on each planetary shaft; a hole is formed in the middle of the gasket, and a second central pinion of the sun gear assembly penetrates through the hole in the middle of the gasket to be meshed with the center of the planetary gear set.
Furthermore, a reinforcing rib for pressing the gasket is arranged on the second disc gear of the sun gear assembly.
Further, a second disc gear of the sun gear assembly is a plastic gear, a second central pinion of the sun gear assembly is a powder metallurgy gear, and the two are connected through insert injection molding.
Furthermore, the planet carrier, the planet shaft and the output shaft are connected through insert injection molding.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects:
1) the center distance of the first-stage gear transmission is positioned by two positioning holes on the motor cover; therefore, the accurate center distance of the first-stage gear transmission is ensured, gear meshing interference cannot occur, and noise is reduced; the operation is stable and reliable;
2) the motor cover is aligned and assembled with the groove in the shell, so that the motor cover is simple to assemble and reliable in positioning, and looseness or rotation of the motor cover is effectively prevented.
3) The enclosure on the motor cover can prevent the gear grease from splashing to the motor terminal or the connecting wire.
4) The outer gear ring is directly arranged on the shell, an independent outer gear ring component is not needed, the assembly efficiency is improved, and parts are reduced.
Drawings
Fig. 1 is an exploded view of an actuator in an embodiment of the present invention.
FIG. 2 is a cross-sectional view of an actuator in an embodiment of the utility model.
Fig. 3a is a schematic view of a motor cover according to an embodiment of the present invention.
Fig. 3b is a schematic diagram of the motor cover assembled to the housing in the embodiment of the present invention.
Fig. 4 is a perspective view of an actuator in an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
An embodiment of the present invention provides an actuator for electronic parking (referred to as an actuator for short in this application), as shown in fig. 1 and 2, including: the device comprises a shell 1, a motor 2, a motor cover 3, a movement gear 4, a transmission gear assembly 5, a sun gear assembly 6, a planetary gear mechanism 7 and a shell cover 8; a first accommodating part is arranged on one side of the shell 1, and the motor 2 is assembled in the first accommodating part; a second accommodating portion is provided on the other side of the housing 1, and the planetary gear mechanism 7 is fitted in the second accommodating portion; the middle part of the shell 1 is connected with a first fixed shaft 9; the motor cover 3 is arranged at the power output end of the motor 2, and the outer side of the motor cover is embedded in the first accommodating part of the shell 1; a first positioning hole 301 is formed in the middle of the motor cover 3 and is embedded on a positioning boss 201 arranged at the power output end of the motor 2 through the first positioning hole 301; an output shaft of the motor 2 passes through the first positioning hole 301 and is connected with the core gear 4; a second positioning hole 302 is formed in one side, facing the first fixing shaft 9, of the motor cover 3; the first fixed shaft 9 penetrates through a second positioning hole 302 on the motor cover 3, and the transmission gear assembly 5 is assembled on the first fixed shaft 9 and can freely rotate; a second fixed shaft 10 is connected to one side of the shell cover 8 corresponding to the planetary gear mechanism 7; the sun gear assembly 6 is mounted on the second fixed shaft 10 to be capable of rotating freely; the transmission gear assembly 5 comprises a first disk gear 501 and a first central pinion 502; the sun gear assembly 6 includes a second disc gear 601 and a second central pinion 602; the movement gear 4 is meshed with a first disk gear 501 of the transmission gear assembly 5, a first central pinion 502 of the transmission gear assembly 5 is meshed with a second disk gear 601 of the sun gear assembly 6, and a second central pinion 602 of the sun gear assembly 6 is meshed with the center of a planetary gear set in the planetary gear mechanism 7; an outer gear ring is arranged on the inner side surface of the second accommodating part of the shell 1 and is meshed with the periphery of a planetary gear set in the planetary gear mechanism 7; the shell cover 8 is connected with the shell 1;
in the above actuating device for electronic parking, the center distance of the first-stage gear transmission is positioned by two positioning holes 301, 302 on the motor cover 3; the first positioning hole 301 is used for transversely positioning the motor 2, and the second positioning hole 302 is used for transversely positioning the first fixing shaft 9, so that the accuracy of the center distance of the first-stage gear transmission is ensured, abnormal sound caused by interference due to the fact that the center distance of the gears (the core gear 4 and the transmission gear assembly 5) is small when the gears are meshed is avoided, and large noise caused by the fact that the center distance of the gears (the core gear 4 and the transmission gear assembly 5) is large when the gears are meshed is avoided;
preferably, the side surface of the motor cover 3 is provided with a plurality of protrusions 303, the housing 1 is provided with grooves 101 matched with the protrusions 303, and the protrusions 303 on the outer side of the motor cover 3 are aligned with the grooves 101 on the housing 1; the assembly is simple, the positioning is reliable, and the motor cover 3 is effectively prevented from loosening or rotating; the protrusion 303 on the motor cover 3 may be a semicircular protrusion, and the groove 101 on the housing 1 may be a semicircular groove;
preferably, the second positioning hole 302 on the motor cover 3 is a notch hole, and the notch of the notch hole faces the direction of the first fixing shaft 9; the assembly with the first fixed shaft 9 is convenient;
preferably, an enclosure 304 is arranged on one side of the motor cover 3, which is far away from the transmission gear assembly 5; the enclosure 304 can prevent gear grease from splashing to a motor terminal or a connecting line on the right side of the movement gear 4 in fig. 4 when gears (mainly the movement gear 4 and the transmission gear assembly 5) are meshed and rotated; the protection function is provided for the charged body of the motor 2;
preferably, a first buffer cushion 11 is arranged between the bottom end of the motor 2 and the shell 1, and a second buffer cushion 12 is arranged on the inner side of the shell cover 8 corresponding to the motor cover 3; the shell cover 8 presses the motor cover 3 through the second cushion pad 12 to play a role in axial positioning; the first cushion pad 11 and the second cushion pad 12 are both rubber pads, so that the vibration of the motor 2 during operation can be effectively reduced;
specifically, the planetary gear mechanism 7 includes a spacer 701, a planetary gear set 702, and a carrier 703; at least 3 planet shafts 704 are arranged on one side of the planet carrier 703 in a centrosymmetric manner, and the center of the other side of the planet carrier is connected with an output shaft 705; the planetary gear set 702 includes at least 3 planetary gears and is respectively fitted on each planetary shaft 704; a hole is formed in the middle of the gasket 701, and the second central pinion 602 of the sun gear assembly 6 penetrates through the hole in the middle of the gasket 701 to be meshed with the center of the planetary gear set 702; the periphery of the planetary gear set 702 is meshed with an external gear ring which is arranged on the inner side surface of the second accommodating part of the shell 1; in the present embodiment, the planetary gear set 702 includes 4 planetary gears, and in other embodiments, may also include 3 planetary gears; the washer 701 may prevent the planetary gear set 702 from shifting axially;
preferably, a reinforcing rib is arranged on the second disc gear 601 of the sun gear assembly 6 and used for pressing the gasket 701;
specifically, the first fixing shaft 9 is connected with the housing 1 in an insert injection molding mode; the second fixed shaft 10 is connected with the shell cover 8 in an insert injection molding mode; the output shaft of the motor 2 is connected with the core gear 4 in an interference fit manner; the transmission gear assembly 5 is a plastic gear as a whole; the second disk gear 601 of the sun gear assembly 6 is a plastic gear, the second central pinion 602 of the sun gear assembly 6 is a powder metallurgy gear, and the two are connected by insert injection; the planet carrier 703 is connected with the planet shaft 704 and the output shaft 705 through insert injection;
when the executing device works, the motor 2 drives the core gear 4 to rotate, the core gear 4 drives the transmission gear assembly 5 to rotate, and the transmission gear assembly 5 drives the sun gear assembly 6 to rotate; the second central pinion 602 of the sun gear assembly 6 drives each planetary gear in the planetary gear set 702 to rotate, each planetary gear revolves on the outer gear ring to drive the planet carrier 703 to rotate, and the planet carrier 703 drives the output shaft 705 to rotate to output the rotating speed and the torque; the speed reduction transmission is realized by the core gear 4, the transmission gear assembly 5, the sun gear assembly 6 and the planetary gear mechanism 7.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. An actuator for electronic parking, comprising: the device comprises a shell (1), a motor (2), a motor cover (3), a machine core gear (4), a transmission gear assembly (5), a sun gear assembly (6), a planetary gear mechanism (7) and a shell cover (8);
a first accommodating part is arranged on one side of the shell (1), and the motor (2) is assembled in the first accommodating part;
a second accommodating part is arranged on the other side of the shell (1), and the planetary gear mechanism (7) is assembled in the second accommodating part;
the middle part of the shell (1) is connected with a first fixed shaft (9);
the motor cover (3) is arranged at the power output end of the motor (2), and the outer side of the motor cover is embedded into the first accommodating part of the shell (1); a first positioning hole (301) is formed in the middle of the motor cover (3) and is embedded on a positioning boss (201) arranged at the power output end of the motor (2) through the first positioning hole (301); an output shaft of the motor (2) penetrates through the first positioning hole (301) to be connected with the core gear (4);
a second positioning hole (302) is formed in one side, facing the first fixing shaft (9), of the motor cover (3); the first fixed shaft (9) penetrates through a second positioning hole (302) in the motor cover (3), and the transmission gear assembly (5) is assembled on the first fixed shaft (9) and can rotate freely;
a second fixed shaft (10) is connected to one side of the shell cover (8) corresponding to the planetary gear mechanism (7); the sun gear assembly (6) is assembled on the second fixed shaft (10) and can rotate freely;
the transmission gear assembly (5) comprises a first disk gear (501) and a first central pinion (502); the sun gear assembly (6) comprises a second disc gear (601) and a second central pinion (602); the movement gear (4) is meshed with a first disk gear (501) of the transmission gear assembly (5), a first central pinion (502) of the transmission gear assembly (5) is meshed with a second disk gear (601) of the sun gear assembly (6), and a second central pinion (602) of the sun gear assembly (6) is meshed with the center of a planetary gear set in the planetary gear mechanism (7); an outer gear ring is arranged on the inner side surface of the second accommodating part of the shell (1), and the outer gear ring is meshed with the periphery of a planetary gear set in the planetary gear mechanism (7);
the shell cover (8) is connected with the shell body (1).
2. The actuator for electronic parking according to claim 1,
the side of motor lid (3) is equipped with a plurality of arch (303), be equipped with on casing (1) with recess (101) of arch (303) adaptation, recess (101) counterpoint assembly on arch (303) in the motor lid (3) outside and casing (1).
3. The actuator for electronic parking according to claim 1,
the second positioning hole (302) on the motor cover (3) is a notch hole, and the notch of the second positioning hole faces the direction of the first fixing shaft (9).
4. The actuator for electronic parking according to claim 1,
and a surrounding baffle (304) is arranged on one side of the motor cover (3) departing from the transmission gear assembly (5).
5. The actuator for electronic parking according to claim 1,
a first buffer cushion (11) is arranged between the bottom end of the motor (2) and the shell (1), and a second buffer cushion (12) is arranged on the inner side of the shell cover (8) corresponding to the motor cover (3); the shell cover (8) presses the motor cover (3) through the second buffer pad (12).
6. The actuator for electronic parking according to claim 1,
the planetary gear mechanism (7) comprises a gasket (701), a planetary gear set (702) and a planet carrier (703); at least 3 planet shafts (704) are arranged on one side of the planet carrier (703) in a centrosymmetric manner, and the center of the other side of the planet carrier is connected with an output shaft (705); the planetary gear set (702) comprises at least 3 planetary gears and is respectively assembled on each planetary shaft (704); the middle of the gasket (701) is provided with a hole, and the second central pinion (602) of the sun gear assembly (6) penetrates through the hole in the middle of the gasket (701) to be meshed with the center of the planetary gear set (702).
7. The actuator for electronic parking according to claim 6,
and a reinforcing rib for pressing the gasket (701) is arranged on the second disk gear (601) of the sun gear assembly (6).
8. The actuator for electronic parking according to claim 6,
the second disk gear (601) of the sun gear assembly (6) is a plastic gear, the second central pinion (602) of the sun gear assembly (6) is a powder metallurgy gear, and the two are connected through insert injection molding.
9. The actuator for electronic parking according to claim 6,
the planet carrier (703) is connected with the planet shaft (704) and the output shaft (705) through insert injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154954.6U CN216143120U (en) | 2021-09-06 | 2021-09-06 | Actuator for electronic parking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122154954.6U CN216143120U (en) | 2021-09-06 | 2021-09-06 | Actuator for electronic parking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216143120U true CN216143120U (en) | 2022-03-29 |
Family
ID=80810275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122154954.6U Active CN216143120U (en) | 2021-09-06 | 2021-09-06 | Actuator for electronic parking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216143120U (en) |
-
2021
- 2021-09-06 CN CN202122154954.6U patent/CN216143120U/en active Active
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