CN109703448A - Automobile front steering dimming drive device - Google Patents
Automobile front steering dimming drive device Download PDFInfo
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- CN109703448A CN109703448A CN201910212483.4A CN201910212483A CN109703448A CN 109703448 A CN109703448 A CN 109703448A CN 201910212483 A CN201910212483 A CN 201910212483A CN 109703448 A CN109703448 A CN 109703448A
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- Prior art keywords
- gear
- drive device
- automobile front
- output
- steering
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Abstract
The invention 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 present invention 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.Overall technological scheme structure of the invention 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 present invention relates to the adjusting accessories fields of motor vehicle illumination, and in particular to a kind of automobile front steering light modulation drive
Dynamic device.
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 scheme of the invention is big；Due to the technical solution
The design for eliminating gear fit clearance is not mentioned, therefore its work positioning accuracy also can be lower than the first two technical solution.
Summary of the invention
In order to solve the above-mentioned technical problem the present invention, provides a kind of automobile front using two-stage Spur Gear Driving structure
With steering dimming drive device.
In order to solve the above technical problems, the present invention adopts the following technical solutions: a kind of automobile front steering light modulation drive
Dynamic device, including shell, hull outside are equipped with stepper motor, and enclosure interior is equipped with intermediate gear and output gear；Described is defeated
Gear includes output shaft out, and the central axis of the output gear and the central axis of output shaft are on same straight line.
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 present invention uses two-stage Spur Gear Driving structure, and advantage is: the output gear of the most end spur gear as driven gear
Wheel, with output shaft integrated injection molding, enormously simplifies the structure of output gear, is allowed to work there is no the structure design for eliminating gap
Make more reliable；To connection driving gear and most end output gear intermediate gear carry out innovative design come eliminate gear cooperation between
Gap；Technical solution of the present invention assembles stepper motor outside shell, solves the heat dissipation problem of stepper motor, simplifies simultaneously
Assembly technology and parts design；Overall technological scheme structure of the invention is simple, it is small in size, can preferably eliminate between gear
Fit clearance, reduce the requirement to assembly precision, while improving operating accuracy, saved production cost, effectively improve
Cost performance.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is inventive shell schematic diagram of internal structure；
Fig. 3 is intermediate gear explosive state structural schematic diagram of the present invention；
Fig. 4 is intermediate gear assembled state structural schematic diagram of the present invention；
Fig. 5 is the structural schematic diagram of gear of the present invention；
Fig. 6 is dual gear structure schematic diagram of the present invention；
Fig. 7 is output gear structural schematic diagram of the present invention；
Fig. 8 is the overlooking structure diagram that duplicate gear of the present invention and gear form tooth form dislocation；
Fig. 9 is the stereoscopic-state structural schematic diagram that duplicate gear of the present invention and gear form tooth form dislocation.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under that premise of not paying creative labor
Embodiment shall fall within the protection scope of the present invention.
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 output terminal component of the present invention 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.Gear 2-1 of the present invention and pinion gear 2-2-1
Identical parameter is to guarantee that gear correct engagement is driven basic；Different parameters is the transverse tooth thickness in order to adjust offset gear,
Preferably eliminate 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 present invention drives power from driving gear 1-1 via intermediate gear
2, most end output gear 3 is reached, 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 |
|---|---|---|---|
| CN201910212483.4A CN109703448A (en) | 2019-03-20 | 2019-03-20 | Automobile front steering dimming drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910212483.4A CN109703448A (en) | 2019-03-20 | 2019-03-20 | Automobile front steering dimming drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109703448A true CN109703448A (en) | 2019-05-03 |
Family
ID=66265912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910212483.4A Pending CN109703448A (en) | 2019-03-20 | 2019-03-20 | Automobile front steering dimming drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109703448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497840A (en) * | 2019-09-23 | 2019-11-26 | 吉林大学 | A kind of motor vehicle steering following-up lighting device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201347019Y (en) * | 2008-01-31 | 2009-11-18 | 北京经纬恒润科技有限公司 | Car lamp steering driving mechanism |
| CN103742636A (en) * | 2013-12-30 | 2014-04-23 | 长城汽车股份有限公司 | Anti-backlash gear |
| CN104595460A (en) * | 2014-12-25 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | Gear assembly capable of eliminating transmission gaps |
| CN104763801A (en) * | 2015-02-10 | 2015-07-08 | 赵言正 | Backlash eliminated structure for gear |
| CN205173446U (en) * | 2015-12-11 | 2016-04-20 | 长安大学 | Mechanism of torque pulse that elimination was produced by gear clearance |
| CN209600378U (en) * | 2019-03-20 | 2019-11-08 | 河南天海电器有限公司 | A kind of automobile front steering dimming drive device |
-
2019
- 2019-03-20 CN CN201910212483.4A patent/CN109703448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201347019Y (en) * | 2008-01-31 | 2009-11-18 | 北京经纬恒润科技有限公司 | Car lamp steering driving mechanism |
| CN103742636A (en) * | 2013-12-30 | 2014-04-23 | 长城汽车股份有限公司 | Anti-backlash gear |
| CN104595460A (en) * | 2014-12-25 | 2015-05-06 | 惠州市华阳多媒体电子有限公司 | Gear assembly capable of eliminating transmission gaps |
| CN104763801A (en) * | 2015-02-10 | 2015-07-08 | 赵言正 | Backlash eliminated structure for gear |
| CN205173446U (en) * | 2015-12-11 | 2016-04-20 | 长安大学 | Mechanism of torque pulse that elimination was produced by gear clearance |
| CN209600378U (en) * | 2019-03-20 | 2019-11-08 | 河南天海电器有限公司 | A kind of automobile front steering dimming drive device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110497840A (en) * | 2019-09-23 | 2019-11-26 | 吉林大学 | A kind of motor vehicle steering following-up lighting device |
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