CN213899834U - AT drive-by-wire executor of shifting - Google Patents
AT drive-by-wire executor of shifting Download PDFInfo
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- CN213899834U CN213899834U CN202022352535.9U CN202022352535U CN213899834U CN 213899834 U CN213899834 U CN 213899834U CN 202022352535 U CN202022352535 U CN 202022352535U CN 213899834 U CN213899834 U CN 213899834U
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Abstract
The utility model relates to a AT drive-by-wire executor of shifting, its characterized in that: the device comprises a main shell, a driving motor, a transmission module and a circuit board; the driving motor, the transmission module and the circuit board are all arranged in the main shell; the shift-by-wire actuator solves the problem that the existing actuator lacks self-adaptability, so that the gear entering of the gearbox is not accurate enough; the middle line control gear shifting actuator of the utility model adopts the straight gear with small internal resistance and small transmission ratio for transmission, wherein four-stage speed reduction is adopted, and the deviation of the rotation angle of the actuator can be controlled to be less than or equal to plus or minus 0.5 degrees; the information is fed back to the software system through the angle sensor, and the system monitors whether the gear shifting of the actuator is in place or not according to the information, so that the gear shifting accuracy is ensured.
Description
Technical Field
The utility model relates to an automobile-used executor technical field that shifts especially relates to an AT drive-by-wire executor of shifting.
Background
The actuator is a component for controlling the speed change of an automobile gearbox, and is widely applied to automatic-gear automobiles at present, wherein the automatic-gear automobiles send gear shifting instructions by a front-end electronic gear shifter, and the electronic gear shifting actuator executes mechanical actions to drive the gearbox to change gears and feed back a current position electric signal to realize a gear shifting function.
The structure of the shift pull rod is adopted in the existing gear shifter, the work such as arrangement, design shift handle modeling, arrangement and structural design of the gear shifter is very complicated, the gear shifter occupies a large space, the appearance is influenced, and the driving comfort is reduced.
The existing actuators are divided into two types, one type adopts a worm gear structure for driving, the defect of poor hand feeling exists in the working process, and the internal resistance of the actuator of the worm gear structure is large, so that the gear shifting of a gearbox is not thorough; one kind uses the straight tooth structure to drive, as 201911401462.3 Chinese patent, discloses a shift actuator, uses the straight gear transmission; the driving motor is linked with the driving gear through the transmission gear, and the angle sensor is fixed at the end part of an output shaft of the driving gear.
The gear shifting actuator is driven by adopting two groups of straight tooth structures, but has the defects of simple structure, no positioning and complex assembly and debugging, so that the defect of difficult allocation exists in the assembly process, the reduction ratio of the actuator is large, the position deviation of a sensor is easy to occur, the condition that the gear entering of a gearbox is incomplete due to the abnormal rotation angle of an output shaft is caused, and the gear shifting actuator cannot be used in a complex environment once the problem occurs and the problem cannot be rapidly handled.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an AT drive-by-wire executor of shifting is provided, the speed reduction ratio that can solve general executor of shifting is the big sensor offset that easily takes place, causes the output shaft corner to lead to the gearbox to go into the not thorough problem of shelves unusually.
In order to solve the technical problem, the utility model adopts the technical scheme that: an AT shift-by-wire actuator, its innovation point lies in: the device comprises a main shell, a driving motor, a transmission module and a circuit board; the driving motor, the transmission module and the circuit board are all arranged in the main shell;
the main shell is of an L-shaped shell structure and is divided into an electronic bin area and a mechanical bin area through a partition plate; an external joint fixing seat mounting opening is formed in the side wall of the electronic bin area, and an external joint fixing seat is arranged at the external joint fixing seat mounting opening; the bottom end of the electronic bin area is closed, and the top end of the electronic bin area is provided with an electronic bin area upper cover plate; the circuit board is arranged in the electronic bin area through a circuit board insulating lining;
the mechanical bin area is provided with a mechanical bin upper end cover and a mechanical bin lower end cover; the driving motor and the transmission module are both arranged in the mechanical bin area of the main shell, and the output end of the driving motor is provided with a motor gear; the transmission module comprises a primary transmission gear, a secondary transmission gear, a tertiary transmission gear, a power output shaft sleeve and a bearing retainer;
the bearing retainer is arranged on the lower surface of the upper end cover of the mechanical bin, a plurality of through holes are formed in the bearing retainer, and rotary bearings are arranged in the through holes; the primary transmission gear is connected with a primary transmission shaft, the side edge of the top end of the primary transmission shaft is matched with a rotary bearing in the bearing retainer, and the side edge of the bottom end of the primary transmission shaft is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the primary transmission gear; the input gear of the primary transmission gear is matched with the motor gear at the output end of the driving motor, and the output gear of the primary transmission gear is matched with the input gear of the secondary transmission gear; the secondary transmission gear is connected with a secondary transmission shaft, the side edge of the top end of the secondary transmission shaft is matched with a rotary bearing in the bearing retainer, the side edge of the bottom end of the secondary transmission shaft is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the secondary transmission gear, and an output gear of the secondary transmission gear is matched with an input gear of the third-stage transmission gear; a third-stage transmission shaft is arranged on the third-stage transmission gear, and the bottom end of the third-stage transmission shaft is fixedly connected to the lower end cover of the mechanical bin; the three-stage transmission gear is connected to the three-stage transmission shaft through a slewing bearing, and an output gear of the three-stage transmission gear is matched with the power output shaft sleeve; the power output shaft sleeve is provided with gear teeth matched with an output gear of the three-stage transmission gear, the side edge of the top end of the power output shaft sleeve is connected to the upper end cover of the mechanical bin through a rotary bearing, and the side edge of the bottom end of the power output shaft sleeve is connected to the inner wall of the mechanical bin through the rotary bearing; the gear teeth on the power output shaft sleeve are driven by the three-stage transmission gear to drive the power output shaft sleeve to rotate;
a magnet mounting seat is further arranged on the side wall of the bottom end of the secondary transmission shaft arranged on the secondary transmission gear, the magnet mounting seat is fixedly embedded on the side wall of the upper bottom end of the secondary transmission shaft, the magnet mounting seat extends to the bottom end of the secondary transmission shaft, and a sensor magnet is arranged in the inner cavity of the magnet mounting seat; a sensor bracket and an angle sensor are arranged below the magnet mounting seat, and the bottom end of the sensor bracket is arranged in the mechanical bin; the angle sensor is arranged in the sensor bracket and is matched with the sensor magnet in the magnet mounting seat to monitor the rotation angle of the sensor magnet; the angle sensor is connected to the circuit board through a lead.
Furthermore, a driving motor positioning groove for accommodating the bottom end of the driving motor is formed in the lower end cover of the mechanical bin.
Furthermore, the circuit board is loaded with DBWT software and is connected with the external connector fixing seat through a lead to realize communication with the outside.
Furthermore, the power output shaft sleeve is provided with a shaft hole connected with the gearbox linkage mechanism along the axis direction; and framework oil seals are arranged on the side edge of the upper end and the side edge of the lower end of the power output shaft sleeve.
Furthermore, the mechanical bin upper end cover, the mechanical bin lower end cover and the electronic bin area upper cover plate are provided with sealing rings when the upper end surface and the lower end surface of the main shell are matched.
The utility model has the advantages that:
1) the shift-by-wire actuator solves the problem that the existing actuator lacks self-adaptability, so that the gear entering of the gearbox is not accurate enough; the middle line control gear shifting actuator of the utility model adopts the straight gear with small internal resistance and small transmission ratio for transmission, wherein four-stage speed reduction is adopted, and the deviation of the rotation angle of the actuator can be controlled to be less than or equal to plus or minus 0.5 degrees; the information is fed back to the software system through the angle sensor, and the system monitors whether the gear shifting of the actuator is in place or not according to the information, so that the gear shifting accuracy is ensured. The electronic bin and the mechanical bin are sealed by matching the end cover, the cover plate and the sealing ring, so that the waterproof and dustproof effects are obtained, and the long-term stable work of the actuator in a severe environment is ensured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is an explosion structure diagram of the AT shift-by-wire actuator of the present invention.
Fig. 2 is a sectional structure diagram of the AT shift-by-wire actuator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An AT shift-by-wire actuator as shown in fig. 1 and fig. 2 comprises a main housing 1, a driving motor 2, a transmission module 3 and a circuit board 4; the driving motor 2, the transmission module 3 and the circuit board 4 are all arranged in the main casing 1.
The main shell body 1 is of an L-shaped shell structure, and the main shell body 1 is divided into an electronic cabin area and a mechanical cabin area through a partition plate; an external joint fixing seat mounting opening is formed in the side wall of the electronic bin area, and an external joint fixing seat 11 is arranged at the external joint fixing seat mounting opening; the bottom end of the electronic bin area is closed, and the top end of the electronic bin area is provided with an electronic bin area upper cover plate 12; the circuit board 4 is arranged in the electronics compartment by means of a circuit board insulation lining 41.
The mechanical bin area is provided with a mechanical bin upper end cover 13 and a mechanical bin lower end cover 14; the driving motor 2 and the transmission module 3 are both arranged in the mechanical bin area of the main shell 1, and the output end of the driving motor 2 is provided with a motor gear 21; the transmission module 3 comprises a primary transmission gear 31, a secondary transmission gear 32, a tertiary transmission gear 33, a power output shaft sleeve 34 and a bearing retainer 35.
The bearing retainer 35 is arranged on the lower surface of the upper end cover 13 of the mechanical bin, a plurality of through holes are formed in the bearing retainer 35, and rotary bearings are arranged in the through holes; the primary transmission gear 31 is connected with a primary transmission shaft, the side edge of the top end of the primary transmission shaft is matched with a rotary bearing in the bearing retainer 35, and the side edge of the bottom end of the primary transmission shaft is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the primary transmission gear 31; an input gear of the primary transmission gear 31 is matched with a motor gear 21 at the output end of the driving motor, and an output gear of the primary transmission gear 31 is matched with an input gear of the secondary transmission gear 32; the secondary transmission gear 32 is connected with a secondary transmission shaft, the side edge of the top end of the secondary transmission shaft is matched with a rotary bearing in the bearing retainer 35, the side edge of the bottom end of the secondary transmission shaft 32 is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the secondary transmission gear 32, and an output gear of the secondary transmission gear 32 is matched with an input gear of the third-stage transmission gear 33; a third-stage transmission shaft is arranged on the third-stage transmission gear 33, and the bottom end of the third-stage transmission shaft 331 is fixedly connected to the lower end cover 14 of the mechanical bin; the three-stage transmission gear 33 is connected to the three-stage transmission shaft 331 through a slewing bearing, and an output gear of the three-stage transmission gear 33 is matched with the power output shaft sleeve 34; gear teeth matched with an output gear of the three-stage transmission gear 33 are arranged on the power output shaft sleeve 34, the side edge of the top end of the power output shaft sleeve 34 is connected to the upper end cover 13 of the mechanical bin through a rotary bearing, and the side edge of the bottom end of the power output shaft sleeve 34 is connected to the inner wall of the mechanical bin through the rotary bearing; the gear teeth on the power output shaft sleeve 34 are driven by the three-stage transmission gear 33 to drive the power output shaft sleeve 34 to rotate.
A magnet mounting seat 321 is further arranged on the side wall of the bottom end of the secondary transmission shaft arranged on the secondary transmission gear 32, the magnet mounting seat 321 is fixedly embedded on the upper side wall of the bottom end of the secondary transmission shaft, the magnet mounting seat 321 extends to the bottom end of the secondary transmission shaft, and a sensor magnet is arranged in the inner cavity of the magnet mounting seat 321; a sensor bracket 322 and an angle sensor 323 are arranged below the magnet mounting seat 321, and the bottom end of the sensor bracket 322 is arranged in the mechanical bin; the angle sensor 323 is arranged in the sensor bracket 322, and the angle sensor 323 is matched with the sensor magnet in the magnet mounting seat 321 to monitor the rotation angle of the sensor magnet; the angle sensor 323 is connected to the circuit board 4 by a wire.
And a driving motor positioning groove for accommodating the bottom end of the driving motor is formed in the lower end cover 14 of the mechanical bin.
The circuit board 4 is loaded with DBWT software, and the circuit board 4 is connected with the external connector fixing base through a lead to realize communication with the outside.
The power output shaft sleeve 34 is provided with a shaft hole connected with the gearbox linkage mechanism along the axis direction; the upper end side and the lower end side of the power output shaft sleeve 34 are provided with a framework oil seal 341.
And the mechanical bin upper end cover 13, the mechanical bin lower end cover 14 and the electronic bin area upper cover plate 12 are provided with sealing rings when the upper end surface and the lower end surface of the main shell are matched.
The utility model discloses a theory of operation is: a motor gear at the output end of the driving motor is driven by a first-stage transmission gear, a second-stage transmission gear and a third-stage transmission gear in the transmission module, and finally power output is performed through a power output shaft sleeve to form four-stage speed reduction; an angle sensor is arranged on the secondary transmission gear and feeds information back to a software system, and the system monitors whether the gear shifting of the actuator is in place or not according to the information, so that the accuracy of the gear shifting is ensured.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. An AT shift-by-wire actuator, comprising: the device comprises a main shell, a driving motor, a transmission module and a circuit board; the driving motor, the transmission module and the circuit board are all arranged in the main shell;
the main shell is of an L-shaped shell structure and is divided into an electronic bin area and a mechanical bin area through a partition plate; an external joint fixing seat mounting opening is formed in the side wall of the electronic bin area, and an external joint fixing seat is arranged at the external joint fixing seat mounting opening; the bottom end of the electronic bin area is closed, and the top end of the electronic bin area is provided with an electronic bin area upper cover plate; the circuit board is arranged in the electronic bin area through a circuit board insulating lining;
the mechanical bin area is provided with a mechanical bin upper end cover and a mechanical bin lower end cover; the driving motor and the transmission module are both arranged in the mechanical bin area of the main shell, and the output end of the driving motor is provided with a motor gear; the transmission module comprises a primary transmission gear, a secondary transmission gear, a tertiary transmission gear, a power output shaft sleeve and a bearing retainer;
the bearing retainer is arranged on the lower surface of the upper end cover of the mechanical bin, a plurality of through holes are formed in the bearing retainer, and rotary bearings are arranged in the through holes; the primary transmission gear is connected with a primary transmission shaft, the side edge of the top end of the primary transmission shaft is matched with a rotary bearing in the bearing retainer, and the side edge of the bottom end of the primary transmission shaft is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the primary transmission gear; the input gear of the primary transmission gear is matched with the motor gear at the output end of the driving motor, and the output gear of the primary transmission gear is matched with the input gear of the secondary transmission gear; the secondary transmission gear is connected with a secondary transmission shaft, the side edge of the top end of the secondary transmission shaft is matched with a rotary bearing in the bearing retainer, the side edge of the bottom end of the secondary transmission shaft is matched with the rotary bearing arranged in the mechanical bin area to realize the position fixation of the secondary transmission gear, and an output gear of the secondary transmission gear is matched with an input gear of the third-stage transmission gear; a third-stage transmission shaft is arranged on the third-stage transmission gear, and the bottom end of the third-stage transmission shaft is fixedly connected to the lower end cover of the mechanical bin; the three-stage transmission gear is connected to the three-stage transmission shaft through a slewing bearing, and an output gear of the three-stage transmission gear is matched with the power output shaft sleeve; the power output shaft sleeve is provided with gear teeth matched with an output gear of the three-stage transmission gear, the side edge of the top end of the power output shaft sleeve is connected to the upper end cover of the mechanical bin through a rotary bearing, and the side edge of the bottom end of the power output shaft sleeve is connected to the inner wall of the mechanical bin through the rotary bearing; the gear teeth on the power output shaft sleeve are driven by the three-stage transmission gear to drive the power output shaft sleeve to rotate;
a magnet mounting seat is further arranged on the side wall of the bottom end of the secondary transmission shaft arranged on the secondary transmission gear, the magnet mounting seat is fixedly embedded on the side wall of the upper bottom end of the secondary transmission shaft, the magnet mounting seat extends to the bottom end of the secondary transmission shaft, and a sensor magnet is arranged in the inner cavity of the magnet mounting seat; a sensor bracket and an angle sensor are arranged below the magnet mounting seat, and the bottom end of the sensor bracket is arranged in the mechanical bin; the angle sensor is arranged in the sensor bracket and is matched with the sensor magnet in the magnet mounting seat to monitor the rotation angle of the sensor magnet; the angle sensor is connected to the circuit board through a lead.
2. An AT shift-by-wire actuator according to claim 1, wherein: and a driving motor positioning groove for accommodating the bottom end of the driving motor is formed in the lower end cover of the mechanical bin.
3. An AT shift-by-wire actuator according to claim 1, wherein: DBWT software is carried on the circuit board, and the circuit board is connected with the external connector fixing seat through a lead to achieve communication with the outside.
4. An AT shift-by-wire actuator according to claim 1, wherein: the power output shaft sleeve is provided with a shaft hole connected with the gearbox linkage mechanism along the axis direction; and framework oil seals are arranged on the side edge of the upper end and the side edge of the lower end of the power output shaft sleeve.
5. An AT shift-by-wire actuator according to claim 1, wherein: and the mechanical bin upper end cover, the mechanical bin lower end cover and the electronic bin area upper cover plate are provided with sealing rings when the upper end surface and the lower end surface of the main shell are matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022352535.9U CN213899834U (en) | 2020-10-21 | 2020-10-21 | AT drive-by-wire executor of shifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022352535.9U CN213899834U (en) | 2020-10-21 | 2020-10-21 | AT drive-by-wire executor of shifting |
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| Publication Number | Publication Date |
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| CN213899834U true CN213899834U (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022352535.9U Active CN213899834U (en) | 2020-10-21 | 2020-10-21 | AT drive-by-wire executor of shifting |
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| CN (1) | CN213899834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811034A (en) * | 2022-05-06 | 2022-07-29 | 中国北方车辆研究所 | Wire control automatic gear shifting device for wheel type combat vehicle |
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2020
- 2020-10-21 CN CN202022352535.9U patent/CN213899834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811034A (en) * | 2022-05-06 | 2022-07-29 | 中国北方车辆研究所 | Wire control automatic gear shifting device for wheel type combat vehicle |
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