CN209600378U - A kind of automobile front steering dimming drive device - Google Patents
A kind of automobile front steering dimming drive device Download PDFInfo
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- CN209600378U CN209600378U CN201920355424.8U CN201920355424U CN209600378U CN 209600378 U CN209600378 U CN 209600378U CN 201920355424 U CN201920355424 U CN 201920355424U CN 209600378 U CN209600378 U CN 209600378U
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- gear
- drive device
- automobile front
- output
- steering
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Abstract
The utility model discloses a kind of automobile front steering dimming drive devices, the output gear of most end is carried out Transform Type design by technical problems to be solved, when eliminating gear fit clearance, machining accuracy and assembly precision require high, manufacturing cost height etc., the utility model includes shell, and hull outside is equipped with stepper motor, and enclosure interior is equipped with intermediate gear and output gear；The output gear includes output shaft, and the central axis of the output gear and the central axis of output shaft are on same straight line.The overall technological scheme structure of the utility model is simple, it is small in size, can preferably eliminate fit clearance between gear, reduce the requirement to assembly precision, while improving operating accuracy, saved production cost, effectively increase cost performance.
Description
Technical field
The utility model relates to the adjusting accessories fields of motor vehicle illumination, and in particular to a kind of automobile front steering tune
Drive unit.
Background technique
Automotive self-adaptive headlight system (AFS, Adaptive Front-lighting System), is that one kind being capable of root
According to the lighting system of its headlight direction of illumination and angle of the driving cycle adjust automatically of vehicle；It can help driver to see in time
The road conditions of corresponding conditioned area are observed, guarantee traffic safety.The realization of automotive self-adaptive headlight system AFS function, very according to
Rely and turns to the accurate reliably working of dimming drive device in vehicle-mounted ECU control and headlight.According to the angle of Vehicular turn and side
To vehicle-mounted ECU turns to dimming drive device to headlight and issues instruction, and control headlight turns to dimming drive device in certain model
Interior left-right rotation is enclosed, the left and right irradiating angle of headlight light is accurately positioned, meets driver under steering situation and road surface is shone to lamp
The demand in region.
Turn to dimming drive device, including driving motor and gear drive and corresponding encapsulating housing etc.；In order to
Realize the orientation angle for turning to the accurate left-right rotation of dimming drive device, it is necessary to eliminate gear existing for gear drive and match
Close gap.In the prior art, whether Spur Gear Driving or worm helical gear transmission, are substantially the output gear of most end
Transform Type design is carried out, to realize the purpose for eliminating gear fit clearance.
In patent EP1516182B1, a kind of steer-drive is disclosed, the method used is by most end sector output gear
Wheel splits into two: output panel and compression plate, and is situated between plus U-shaped spring, realizes the mesh for eliminating gear fit clearance
's.This structure, output panel and compression plate are two driven gears together as output block, machining accuracy to the two and
Assembly precision requirement is all very high, is otherwise difficult to meet the pinpoint requirement of product；In addition, as passive stressed member, the two
The phenomenon that there is always discontinuity at work, be easy to cause parts wear.
In patent CN105305717A, a kind of actuator for causing at least one optical element movable is disclosed, is used
Method is that afterbody drive mechanism is designed as to worm helical gear transmission cooperation, and the fan-shaped output helical gear of most end and reply fill
Setting is an entirety, which using return mechanism is applied to the axial compressive force on worm screw come between realizing and eliminating gear cooperation
The purpose of gap.This structure, drive mechanism and return mechanism are complex, and worm screw and helical gear manufacturing cost are also very high,
And the two assembly and work positioning accuracy, which have to cooperate by return mechanism and external support members, to be met, pinpoint
Influence factor is excessive.
It is the two-stage gear drive combined using worm helical gear transmission and Spur Gear Driving in two above patent
Scheme, structure order of placement are opposite；Simultaneously as the motor of the two patent formulas is placed in enclosure interior, it is very unfavorable
In the heat dissipation of motor.
In patent CN101219648B, a kind of steer-drive is disclosed, the method used is that motor is placed on shell
Outside is cooperated using three-level Spur Gear Driving, to drive car light to turn to；The emphasis of technical solution protection is to utilize bearing support
Motor shaft is reduced and is shaken, but does not mention the design for eliminating gear fit clearance.The technical side of patent CN101219648B
Case, drive mechanism reach three-level, it appears very complicated, wanting for volume ratio the first two utility model scheme is big；Due to the technology
Scheme does not mention the design for eliminating gear fit clearance, therefore its work positioning accuracy also can be lower than the first two technical solution.
Utility model content
The utility model in order to solve the above-mentioned technical problem, before a kind of automobile using two-stage Spur Gear Driving structure is provided
Headlight steering dimming drive device.
In order to solve the above technical problems, the utility model adopts the following technical solutions: a kind of automobile front steering tune
Drive unit, including shell, hull outside are equipped with stepper motor, and enclosure interior is equipped with intermediate gear and output gear；It is described
Output gear include output shaft, the central axis of the output gear and the central axis of output shaft are in same straight line
On.
The output gear and output shaft is an integral molding structure.
The intermediate gear includes gear and duplicate gear, and the duplicate gear is equipped with pinion gear, gear with it is small
Gear axially clamping connection；The central axis of the gear and the central axis of duplicate gear are on same center line.
The gear and pinion shaft have gap on the circumferencial direction of access section.
Wind spring is equipped between the gear and pinion gear, wind spring is clamped connect respectively with gear, pinion gear.
The gear is equipped with card nose, and gear is an integral molding structure with card nose；It is additionally provided on the duplicate gear big
Gear, pinion gear are equipped with buckle, and gear wheel and pinion gear are an integral molding structure.
The gear and pinion gear is connected by meshing transmission with output gear.
The gear and pinion gear are spur gear, the modulus of gear and pinion gear, the number of teeth, cooperation center away from all the same,
Gear is different from the modification coefficient of pinion gear.
The stepper motor is equipped with driving gear, and the driving gear and gear wheel are spur gear, gear wheel
Connection is engaged with driving gear.
The utility model uses two-stage Spur Gear Driving structure, and advantage is: most end spur gear as driven gear it is defeated
Gear, with output shaft integrated injection molding, enormously simplifies the structure of output gear, makes there is no the structure design for eliminating gap out
Work it is more reliable；Innovative design is carried out to the intermediate gear of connection driving gear and most end output gear to eliminate gear cooperation
Gap；The technical solution of the utility model assembles stepper motor outside shell, solves the heat dissipation problem of stepper motor, simultaneously
Simplify assembly technology and parts design；The overall technological scheme structure of the utility model is simple, it is small in size, can preferably disappear
Except the fit clearance between gear, the requirement to assembly precision is reduced, while improving operating accuracy, saved and be produced into
This, effectively increases cost performance.
Detailed description of the invention
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model housing interior structure schematic diagram；
Fig. 3 is the utility model intermediate gear explosive state structural schematic diagram；
Fig. 4 is the utility model intermediate gear assembled state structural schematic diagram；
Fig. 5 is the structural schematic diagram of the utility model gear；
Fig. 6 is the utility model dual gear structure schematic diagram；
Fig. 7 is the utility model output gear structural schematic diagram；
Fig. 8 is the overlooking structure diagram that the utility model duplicate gear and gear form tooth form dislocation；
Fig. 9 is the stereoscopic-state structural schematic diagram that the utility model duplicate gear and gear form tooth form dislocation.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figures 1 to 9, a kind of automobile front is set outside shell 4 with dimming drive device, including shell 4 is turned to
There is stepper motor 1, is equipped with intermediate gear 2 and output gear 3 inside shell 4；The output gear 3 includes output shaft 3-1, institute
The central axis for the output gear 3 stated and the central axis of output shaft 3-1 are on same straight line.Output gear 3 and output shaft
3-1 is rotated around the same central axis；It is obtained greatly after eliminating the complex mechanism for eliminating gear fit clearance on output gear
It is big to simplify, keep the utility model output terminal component more stable and reliable.
The output gear 3 and output shaft 3-1 is an integral molding structure.
The intermediate gear 2 includes that gear 2-1 and duplicate gear 2-2, the duplicate gear 2-2 are equipped with pinion gear
2-2-1, gear 2-1 and pinion gear 2-2-1 axially clamping connection；In the central axis and duplicate gear 2-2 of the gear 2-1
Mandrel line is on same center line.Gear 2-1 and duplicate gear 2-2 is rotated around the same central axis.
There is gap on the gear 2-1 and the circumferencial direction of pinion gear 2-2-1 axial direction access section.Gear 2-1 and pinion gear
Certain gap is set on the circumferencial direction of 2-2-1 axial direction access section, so that forming one between gear 2-1 and pinion gear 2-2-1
Determine the tooth form dislocation of angle.
Wind spring 2-3, wind spring 2-3 and gear 2-1, pinion gear 2-2- are equipped between the gear 2-1 and pinion gear 2-2-1
1 clamping connection respectively.When wind spring 2-3 with the pinion gear 2-2-1 of gear 2-1 and duplicate gear 2-2 with clamping, maintain certain
Pretightning force；This pretightning force and the structure of clamping connection guarantee that the tooth form error angle of gear 2-1 and pinion gear 2-2-1 is able to maintain one
Determine angle.
The gear 2-1 is equipped with card nose 2-1-1, and gear 2-1 is an integral molding structure with card nose 2-1-1；It is described double
Gear wheel 2-2-3 is additionally provided on connection gear 2-2, pinion gear 2-2-1 is equipped with buckle 2-2-2, gear wheel 2-2-3 and pinion gear 2-
2-1 is an integral molding structure.
The gear 2-1 and pinion gear 2-2-1 is connected by meshing transmission with output gear 3.When work, according to output gear
Change appropriate can occur for the tooth form error angle that the load of wheel 3 and the change for controlling angle, gear 2-1 and pinion gear 2-2-1 are formed
Change, while guarantee without backlash cooperation, reduces the movement to gear and wear.
The gear 2-1 and pinion gear 2-2-1 is spur gear, and the modulus of gear 2-1 and pinion gear 2-2-1, is matched at the number of teeth
Away from all the same, gear 2-1 is different from the modification coefficient of pinion gear 2-2-1 at conjunction center.The utility model gear 2-1 and pinion gear 2-
The identical parameter of 2-1 is to guarantee that gear correct engagement is driven basic；Different parameters is the tooth in order to adjust offset gear
Thickness preferably eliminates gear fit clearance.
It is straight that the stepper motor 1, which is equipped with driving gear 1-1, the driving gear 1-1 and gear wheel 2-2-3,
Gear, gear wheel 2-2-3 engage connection with driving gear 1-1.The utility model drives power from driving gear 1-1 via centre
Gear 2 reaches most end output gear 3, drives big lamp part to rotate by output shaft 3-1.
Claims (9)
1. a kind of automobile front steering dimming drive device, it is characterised in that: including shell (4), is equipped with outside shell (4)
Stepper motor (1), shell (4) is internal to be equipped with intermediate gear (2) and output gear (3)；The output gear (3) includes output
Axis (3-1), the central axis of the output gear (3) and the central axis of output shaft (3-1) are on same straight line.
2. automobile front according to claim 1 steering dimming drive device, it is characterised in that: the output gear
Wheel (3) and output shaft (3-1) are an integral molding structure.
3. automobile front according to claim 1 steering dimming drive device, it is characterised in that: the center tooth
Wheel (2) includes gear (2-1) and duplicate gear (2-2), and the duplicate gear (2-2) is equipped with pinion gear (2-2-1), gear
(2-1) and pinion gear (2-2-1) axially clamping connects；The central axis of the gear (2-1) and the center of duplicate gear (2-2)
Axis is on same center line.
4. automobile front according to claim 3 steering dimming drive device, it is characterised in that: the gear (2-
1) there is gap on the circumferencial direction of the axial access section pinion gear (2-2-1).
5. automobile front according to claim 4 steering dimming drive device, it is characterised in that: the gear
It is equipped with wind spring (2-3) between (2-1) and pinion gear (2-2-1), wind spring (2-3) and gear (2-1), pinion gear (2-2-1) are respectively
Clamping connection.
6. automobile front according to claim 3 steering dimming drive device, it is characterised in that: the gear
(2-1) is equipped with card nose (2-1-1), and gear (2-1) is an integral molding structure with card nose (2-1-1)；The duplicate gear (2-2)
On be additionally provided with gear wheel (2-2-3), pinion gear (2-2-1) is equipped with buckle (2-2-2), gear wheel (2-2-3) and pinion gear (2-
2-1) it is an integral molding structure.
7. automobile front according to claim 3 steering dimming drive device, it is characterised in that: the gear
(2-1) and pinion gear (2-2-1) are connected by meshing transmission with output gear (3).
8. automobile front according to claim 3 steering dimming drive device, it is characterised in that: the gear (2-
It 1) is spur gear with pinion gear (2-2-1), the modulus of gear (2-1) and pinion gear (2-2-1), cooperates center away from equal at the number of teeth
Identical, gear (2-1) is different from the modification coefficient of pinion gear (2-2-1).
9. automobile front according to claim 6 steering dimming drive device, it is characterised in that: the stepping electricity
Machine (1) is equipped with driving gear (1-1), and the driving gear (1-1) and gear wheel (2-2-3) are spur gear, gear wheel
(2-2-3) engages connection with driving gear (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355424.8U CN209600378U (en) | 2019-03-20 | 2019-03-20 | A kind of automobile front steering dimming drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920355424.8U CN209600378U (en) | 2019-03-20 | 2019-03-20 | A kind of automobile front steering dimming drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209600378U true CN209600378U (en) | 2019-11-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920355424.8U Active CN209600378U (en) | 2019-03-20 | 2019-03-20 | A kind of automobile front steering dimming drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209600378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109703448A (en) * | 2019-03-20 | 2019-05-03 | 河南天海电器有限公司 | Automobile front steering dimming drive device |
-
2019
- 2019-03-20 CN CN201920355424.8U patent/CN209600378U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109703448A (en) * | 2019-03-20 | 2019-05-03 | 河南天海电器有限公司 | Automobile front steering dimming drive device |
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