CN113074244A - Line control gear shifting actuator, gearbox and automobile - Google Patents

Line control gear shifting actuator, gearbox and automobile Download PDF

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Publication number
CN113074244A
CN113074244A CN202010008239.9A CN202010008239A CN113074244A CN 113074244 A CN113074244 A CN 113074244A CN 202010008239 A CN202010008239 A CN 202010008239A CN 113074244 A CN113074244 A CN 113074244A
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CN
China
Prior art keywords
gearbox
worm
shift
wheel body
component
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010008239.9A
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Chinese (zh)
Inventor
梁建刚
凌新新
谭火南
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Publication date
Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN202010008239.9A priority Critical patent/CN113074244A/en
Publication of CN113074244A publication Critical patent/CN113074244A/en
Pending legal-status Critical Current

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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
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/30—Constructional features of the final output mechanisms

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Gear Transmission (AREA)

Abstract

The invention discloses a line control gear shift actuator, which comprises: a housing; install the inside driving motor of casing, first order deceleration increase the torsion component and the second level deceleration increases the torsion component, and first order deceleration increases the torsion component and connects on the driving motor output shaft, and the second level deceleration increases the torsion component and includes at least: the worm rod is provided with a transmission gear; the grooving wheel, the grooving wheel includes: the fluting wheel body that links to each other with the driving gear, with fluting wheel body synchronous rotation link to each other can with the shaft sleeve of the gearbox pivot adaptation connection of a gearbox, wherein: the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooved wheel body and the shaft sleeve, and converts the axial rotation of the worm into vertical rotation which is vertical to the axial direction of the worm. The invention also discloses a gearbox and an automobile. The shift-by-wire actuator, the gearbox and the automobile have compact and intensive structure, save arrangement space, and operate stably with small sound; the speed and the torque can be reduced and increased, and a larger torque load is driven.

Description

Line control gear shifting actuator, gearbox and automobile
Technical Field
The invention relates to the field of automobile manufacturing, in particular to a line control gear shifting actuator, a gearbox and an automobile.
Background
With the development of passenger car technology, the requirements of customers on automation, science and technology and individuation of passenger cars are higher and higher. The high-tech configuration is more and more popular, wherein the development of shift-by-wire is rapidly advanced, and both European and American vehicle types carry the shift-by-wire with a great technological sense and domestic brands also carry the shift-by-wire.
The wire control gear shifting actuator in the current market mostly adopts a structure that a motor drives a push rod, and the push rod is connected with a rocker arm of a gearbox to push the gear shifting of the gearbox.
The shift-by-wire actuator has the following technical problems: 1. the structure is complex and the weight is heavy; 2. bulky and not conducive to spatial arrangements.
Disclosure of Invention
The invention aims to solve the technical problems that a line control gear shifting actuator, a gearbox and an automobile are provided, the structure is compact and intensive, the arrangement space is saved, and the operation is stable and the sound is small; the speed and the torque can be reduced and increased, and a larger torque load is driven.
In order to solve the above technical problem, an embodiment of the present invention provides a shift-by-wire actuator, including: a housing; install the inside driving motor of casing, first order deceleration increase the torsion component and the second level deceleration increases the torsion component, and first order deceleration increases the torsion component and connects on the driving motor output shaft, and the second level deceleration increases the torsion component and includes at least: the worm is connected with the first-stage speed reduction and torque increase component and is provided with transmission teeth; the grooving wheel, the grooving wheel includes: the fluting wheel body that links to each other with the driving gear, with fluting wheel body synchronous rotation link to each other can with the shaft sleeve of the gearbox pivot adaptation connection of a gearbox, wherein: the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooved wheel body and the shaft sleeve, and converts the axial rotation of the worm into vertical rotation which is vertical to the axial direction of the worm.
The grooved wheel body is cylindrical, and a plurality of grooves which can be in fit engagement with the transmission teeth are formed in the circumference of the grooved wheel body; the worm is meshed with the slotted wheel body through the transmission teeth, and the slotted wheel body and the shaft sleeve are linked to rotate.
The structure of the plurality of grooves is the same, the plurality of grooves are uniformly arranged at equal intervals, and the plurality of grooves are distributed in the whole circumferential direction of the grooved pulley body; the axial direction of the shaft sleeve is vertical to the rotating shaft direction of the scroll bar.
Wherein, the scroll bar and the grooved wheel have the same helix angle; the transmission ratio of the scroll rod to the grooved wheel is 1-3.
Wherein, first order deceleration increases the torsion component and includes: the worm shaft of the worm rod is connected with the belt; wherein: the driving motor performs speed reduction and torque increase through the transmission structure of the small belt pulley, the belt and the large belt pulley.
Wherein, the big belt pulley is connected with the worm shaft in an interference fit way.
Wherein, the transmission ratio of the big belt pulley to the small belt pulley is 2-5.
Wherein, still include: a magnet mounted on the top of the shaft sleeve; a PCB board mounted on a support inside the housing; a sensor connected to the PCB, wherein: and acquiring the rotation angle of the wheel slot through the rotation angle of the magnet identified by the sensor.
In order to solve the technical problem, the invention also discloses a gearbox, which comprises a gearbox body and the shift-by-wire actuator fastened on the gearbox body; the gearbox body has the gearbox pivot, and the axle sleeve cup joints in the gearbox pivot, and the axle sleeve drives the synchronous rotation of gearbox pivot.
In order to solve the technical problem, the invention also discloses an automobile with the gearbox.
The shift-by-wire actuator, the gearbox and the automobile provided by the invention have the following beneficial effects:
a first, shift-by-wire actuator comprising: a housing; install the inside driving motor of casing, first order deceleration increase the torsion component and the second level deceleration increases the torsion component, and first order deceleration increases the torsion component and connects on the driving motor output shaft, and the second level deceleration increases the torsion component and includes at least: the worm is connected with the first-stage speed reduction and torque increase component and is provided with transmission teeth; the grooving wheel, the grooving wheel includes: the fluting wheel body that links to each other with the driving gear, with fluting wheel body synchronous rotation link to each other can with the shaft sleeve of the gearbox pivot adaptation connection of a gearbox, wherein: the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooved wheel body and the shaft sleeve, and converts the axial rotation of the worm into vertical rotation, and the vertical rotation is vertical to the axial direction of the worm, so that the speed-reducing and torque-increasing can be realized, and a larger torque load can be driven.
Secondly, compact structure is intensive, saves the arrangement space, and the sound is little for the steady operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an assembly of a shift-by-wire actuator and a transmission body according to an embodiment of the invention.
FIG. 2 is a schematic diagram of a top view of an assembly of a gearbox rotating shaft and a grooved wheel according to an embodiment of the invention.
Fig. 3 is a schematic view of the internal structure of a shift-by-wire actuator according to an embodiment of the present invention.
Fig. 4 is a schematic perspective view of an assembly of a worm and a grooved wheel of the shift-by-wire actuator according to the embodiment of the invention.
FIG. 5 is a schematic cross-sectional view of the assembly of the scroll bar and the grooved wheel of the shift-by-wire actuator according to the embodiment of the invention.
Fig. 6 is a schematic view of an assembly structure of a slotted wheel of a shift-by-wire actuator according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a first embodiment of the transmission according to the present invention is shown.
The gearbox in this embodiment is applied to the car, and the gearbox includes: the gearbox comprises a gearbox body 2 and a linear control gear shifting actuator 1 fastened on the gearbox body 2. The gearbox body 2 is provided with a gearbox rotating shaft 21, a shaft sleeve 152c of the shift-by-wire actuator 1 is sleeved on the gearbox rotating shaft 21, and the shaft sleeve 152c drives the gearbox rotating shaft 21 to synchronously rotate.
In a specific implementation, the shift-by-wire actuator 1 includes: casing 11, casing 11 are hollow dysmorphism cavity structure. In the present embodiment, three fitting positions 111 extend from the housing 11, and the three fitting positions 111 can be fittingly fastened to three mounting points 2t provided on the transmission case body 2. In practice, the adaptive fastening of the mounting point 111 and the mounting point 2t fastens the shift-by-wire actuator 1 to the gearbox body 2.
The hollow cavity of the housing 11 is fitted with a number of components, such as: a first-stage speed reduction and torque increase component, a second-stage speed reduction and torque increase component and the like. In this embodiment, a bottom bracket 12 for supporting and fixing a plurality of components is assembled in the hollow cavity of the housing 11. The shape of the bottom bracket 12 may be determined according to the shape of the inner chamber of the housing 11 and the shape of the components to be fixed.
The hollow cavity of the shell 11 is provided with a driving motor 13, a first-stage speed-reducing and torque-increasing component 14 and a second-stage speed-reducing and torque-increasing component 15, and the first-stage speed-reducing and torque-increasing component 14 is connected to an output shaft 131 of the driving motor.
In specific implementation, the first-stage speed-reducing and torque-increasing member 14 includes: a small pulley 141 connected to the driving motor output shaft 131, a belt 142 connected to the small pulley 141, and a large pulley 143, opposite ends of the large pulley 143 being connected to the belt 142 and the worm shaft 151b of the worm 151, respectively. Wherein: the driving motor 13 performs speed reduction and torque increase through the transmission structure of the small pulley 141, the belt 142 and the large pulley 143.
In this embodiment, the transmission direction of the belt 142 is perpendicular to the axial direction of the output shaft 131 of the driving motor. The first stage speed reduction and torque increase component 14 has the functions of: the first-stage speed reduction and torque increase is realized to drive a load with large torque. In the embodiment, the transmission ratio of the large belt pulley 143 to the small belt pulley 141 is 2-5, and the large belt pulley 143 is connected to the worm shaft 151b by interference fit.
The second stage speed reduction and torque increase member 15 includes at least: a worm 151 connected to the first stage speed reducing and torque increasing member 14 and a slotted wheel 152. Wherein: opposite ends of a worm shaft 151b of the worm rod 151 are fastened to the bottom bracket 12, and the worm rod 151 is provided with transmission teeth 151 a; the scroll 151 is connected to the first stage speed reduction and torque increase member 14 through a bearing set 19.
The slotted wheel 152 includes: slotted wheel body 152a that links to each other with driving tooth 151a, with slotted wheel body 152a synchronous rotation link to each other can with the gearbox pivot 21 adaptation of a gearbox axle sleeve 152c, wherein: the driving motor 13 sequentially links the scroll 151, the grooved wheel body 152a, and the sleeve 152c through the first-stage speed-reducing and torque-increasing member, and converts the rotation of the scroll 151 in the axial direction O1 into the rotation of the sleeve 152c in the vertical direction O2 perpendicular to the axial direction.
Preferably, the worm 151 is disposed in a direction parallel to the axial direction of the output shaft 131 of the driving motor and perpendicular to the driving direction of the belt 142 in this embodiment. The slotted wheel 152 is made of a material having a relatively high stiffness. Slotted wheel 152 includes a slotted wheel body 152a, a slot 152b, and a bushing 152 c.
The grooved wheel body 152a is cylindrical, and a plurality of grooves 152b that can be engaged with the gear teeth 151a of the worm 151 are formed on the circumference thereof.
Preferably, the plurality of slots 152b are identical, the plurality of slots 152b are uniformly arranged at equal intervals, and the plurality of slots 152b are arranged to fill the entire circumferential direction of the slotted wheel body 152 a. Thus, 2 and 3 slots 152b are always matched with the transmission teeth 151a of the worm 151. Meanwhile, the worm 151 links the grooved wheel body 151a and the sleeve 152c to rotate by the engagement of the gear teeth 151a with the grooves 152 b.
Preferably, the axial direction O2 of the boss 152c is perpendicular to the rotational axis direction O1 of the scroll 151. The effect of so setting is: the rotation of the scroll 151 in the axial direction O1 is converted into rotation of the boss 152c in the vertical direction O2, which is perpendicular to the axial direction. Because the operating mode of scroll rod 151 horizontal work is more steady, and impact, vibrations and noise are all less. In addition, the rotation of the scroll rod 151 in the axial direction O1 is converted into the rotation of the bushing 152c in the vertical direction O2, so that the shift-by-wire actuator 1 has a smaller size, a more compact structure, a smoother operation and lower noise.
The second stage speed reduction and torque increase component 15 has the following functions: the second-stage speed reduction and torque increase is realized to drive a load with large torque. Preferably, scroll 151 and grooved wheel 152 have the same lead angle; the transmission ratio of the worm 151 to the grooved wheel 152 is 1-3. Therefore, 2 and 3 slots 152b are always matched with the transmission teeth 151a of the worm 151, and the structure is simplified.
Further, a top bracket 16 is provided on the top of the scroll 151 in the hollow cavity of the housing 11. In addition, the top of axle sleeve 152c is equipped with magnet 17, is equipped with PCB board 18 on the inside top support 16 of casing, and PCB board 18 is connected with the sensor, and the sensor in this embodiment is hall sensor, wherein: the rotation angle of the notch 152 is obtained from the rotation angle of the magnet 17 recognized by the sensor.
When the gearbox in this embodiment is implemented specifically, the driving motor 13 sequentially links the worm 151, the grooved wheel body 152a and the shaft sleeve 152c through the first-stage speed-reducing and torque-increasing member 14, and converts the rotation of the worm 151 in the axial direction O1 into the rotation of the shaft sleeve 152c in the vertical direction O2, which is perpendicular to the axial direction, so as to reduce the speed and increase the torque and drive a larger torque load; compact and intensive structure, saves arrangement space, and operates stably with little sound. Use the drive-by-wire executor 1 of this application, can promote the load that traditional executor can drive usually by a wide margin, for example: the transmission screw rod actuator can drive the load of 18N.m at most, and the adoption of the embodiment can drive the load of more than 30N.m, so that the application prospect is wide.
The implementation of the shift-by-wire actuator, the gearbox and the automobile has the following beneficial effects: a shift-by-wire actuator comprising: a housing; install the inside driving motor of casing, first order deceleration increase the torsion component and the second level deceleration increases the torsion component, and first order deceleration increases the torsion component and connects on the driving motor output shaft, and the second level deceleration increases the torsion component and includes at least: the worm is connected with the first-stage speed reduction and torque increase component and is provided with transmission teeth; the grooving wheel, the grooving wheel includes: the fluting wheel body that links to each other with the driving gear, with fluting wheel body synchronous rotation link to each other can with the shaft sleeve of the gearbox pivot adaptation connection of a gearbox, wherein: the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooved wheel body and the shaft sleeve, and converts the axial rotation of the worm into vertical rotation, the vertical rotation is vertical to the axial direction of the worm, so that the speed-reducing and torque-increasing can be realized, and a larger torque load can be driven; compact and intensive structure, saves arrangement space, and operates stably with little sound.

Claims (10)

1. A shift-by-wire actuator, comprising: a housing; install drive motor, the first order deceleration of casing inside increases the turn round component and the second level deceleration increases the turn round component, and the first order deceleration increases the turn round the component and connects on the drive motor output shaft, the second level deceleration increases to turn round the component and includes at least:
the worm is connected with the first-stage speed reduction and torque increase component and is provided with transmission teeth;
a sheave, the sheave comprising: with the fluting wheel body that the driving tooth links to each other, with fluting wheel body synchronous rotation link to each other can with the shaft sleeve of the gearbox pivot adaptation connection of a gearbox, wherein:
the driving motor is sequentially linked with the first-stage speed-reducing and torque-increasing component, the worm, the grooved wheel body and the shaft sleeve, and converts the axial rotation of the worm into vertical rotation, wherein the vertical rotation is vertical to the axial direction of the worm.
2. The shift-by-wire actuator of claim 1 wherein the slotted wheel body is cylindrical and defines a plurality of slots on a circumference thereof that are adapted to engage the drive teeth;
the worm is meshed with the slotted wheel body through the transmission teeth, and the slotted wheel body and the shaft sleeve are linked to rotate.
3. The shift-by-wire actuator of claim 2 wherein the plurality of slots are identical in structure, are equally spaced, and are arranged around the entire circumference of the slotted wheel body;
the axis direction of the shaft sleeve is perpendicular to the rotating shaft direction of the scroll rod.
4. The shift-by-wire actuator of claim 2 wherein the worm has the same helix angle as the grooved wheel;
the transmission ratio of the scroll rod to the grooved wheel is 1-3.
5. The shift-by-wire actuator of claim 1, wherein the first stage downshift torque-up member comprises:
the worm shaft of the worm rod is connected with the worm shaft of the worm wheel; wherein: the driving motor performs speed reduction and torque increase through the small belt pulley, the belt and the transmission structure of the large belt pulley.
6. The shift-by-wire actuator of claim 5 wherein the large pulley is connected with the worm shaft in an interference fit.
7. The shift-by-wire actuator of claim 6 wherein the ratio of the large pulley to the small pulley is 2 to 5.
8. The shift-by-wire actuator of claim 1, further comprising:
the magnet is arranged at the top of the shaft sleeve;
a PCB board arranged on a bracket in the shell;
a sensor coupled to the PCB, wherein: and acquiring the rotation angle of the wheel opening groove through the rotation angle of the magnet identified by the sensor.
9. A gearbox comprising a gearbox body and a shift-by-wire actuator according to any of claims 1 to 8 secured to the gearbox body;
the gearbox body is provided with a gearbox rotating shaft, the shaft sleeve is sleeved on the gearbox rotating shaft, and the shaft sleeve drives the gearbox rotating shaft to synchronously rotate.
10. A motor vehicle, characterized in that it comprises a gearbox according to claim 9.
CN202010008239.9A 2020-01-06 2020-01-06 Line control gear shifting actuator, gearbox and automobile Pending CN113074244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010008239.9A CN113074244A (en) 2020-01-06 2020-01-06 Line control gear shifting actuator, gearbox and automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010008239.9A CN113074244A (en) 2020-01-06 2020-01-06 Line control gear shifting actuator, gearbox and automobile

Publications (1)

Publication Number Publication Date
CN113074244A true CN113074244A (en) 2021-07-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010008239.9A Pending CN113074244A (en) 2020-01-06 2020-01-06 Line control gear shifting actuator, gearbox and automobile

Country Status (1)

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CN (1) CN113074244A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140019982A (en) * 2012-08-07 2014-02-18 주식회사 모아텍 Actuator for vehicle
CN106286817A (en) * 2016-11-10 2017-01-04 广州汽车集团股份有限公司 shift actuator
CN212745004U (en) * 2020-01-06 2021-03-19 广州汽车集团股份有限公司 Line control gear shifting actuator, gearbox and automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140019982A (en) * 2012-08-07 2014-02-18 주식회사 모아텍 Actuator for vehicle
CN106286817A (en) * 2016-11-10 2017-01-04 广州汽车集团股份有限公司 shift actuator
CN212745004U (en) * 2020-01-06 2021-03-19 广州汽车集团股份有限公司 Line control gear shifting actuator, gearbox and automobile

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