CN101875327B - Steering drive device for automobile headlight - Google Patents
Steering drive device for automobile headlight Download PDFInfo
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- CN101875327B CN101875327B CN 201010218264 CN201010218264A CN101875327B CN 101875327 B CN101875327 B CN 101875327B CN 201010218264 CN201010218264 CN 201010218264 CN 201010218264 A CN201010218264 A CN 201010218264A CN 101875327 B CN101875327 B CN 101875327B
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Abstract
The invention relates to a steering drive device for a automobile headlight, which is installed on a light bracket and connected with a light cover, and comprises an upper box cover, a lower box cover, a gear drive mechanism, a direct current stepping motor and a drive output shaft, wherein the gear drive mechanism is arranged in the box cover; the direct current stepping motor is arranged outside the box cover; and the drive output shaft extends out from the box cover. The invention is characterized in that the gear drive mechanism comprises at least two groups of coaxial different-mode gears, the direct current stepping motor drives the first group of the coaxial different-mode gears through a main gear, the first group of the coaxial different-mode gears is meshed with the second group of the coaxial different-mode gears, the second group of the coaxial different-mode gears is then meshed with an annular internal tooth gear, and the axis line of the rotate shaft of the direct current stepping motor and the axis line of the drive output shaft are in the same straight line. By the structure, the invention has the advantages of space saving, compact structure, large drive output torque, stable drive output and the like, and can be widely applied to self-adapting headlight lighting systems of various automobiles.
Description
Technical field
The present invention relates to the technical field of vehicle head lamp system, particularly the car light steering transmission linkage of self adaptation head light Lighting System.
Background technology
The safety of travelling in order to improve automobile runs, a kind of self adaptation head light Lighting System has been proposed in the industry---be called for short AFS, about carry out at its height azimuth of following the handling maneuver angle of bearing circle and vehicle body suspension and rotation up and down, so that the head lamp direction of illumination is not only towards the straight-line travelling direction, can also carry out towards chaufeur the direction of steering operation, in the very large effect of getting up aspect the running safety that improves automobile.In this self-adaptive headlamp system, steering transmission linkage has play a part important, and the stability of steering transmission linkage and durability aspect are even more important.In drive transmission in the past, motor is propulsion source, and the gear mechanism that is fixed on the framework is realized the rotary actuation function.The transmission device of gear is the planetary gear type of drive.Main gear is to produce moment of rotation by driven by motor, main gear first is meshed from gear with it again, thereby moment of rotation be delivered to be meshed with main gear first from gear, first second is meshed from gear with it again from gear, but second is not meshed with main gear from gear, again moment of rotation is delivered to second from gear.By so gear-driven mode of step by step stack, moment of rotation is delivered to transmission output shaft always, transmission output shaft by one of them from gear driven, selection can reach the transmitting ratio of demand from gear, but limited by the spatial volume of framework, the transmitting ratio of gear is not high.The axis of main gear be parallel to each other from the dislocation of the axis of gear and transmission output shaft thereof---not on same straight line, the gear drive structure of this mode is not very compact, transmission output only has one from gear driven, it is not very stable having caused transmission process, and rotating torque is large not.
Summary of the invention
The objective of the invention is to overcome the weak point of above-mentioned prior art, propose a kind of saving space, compact conformation, the transmission output torque is large, transmission output pulsation-free steering drive device for automobile headlight.
The objective of the invention is to be achieved through the following technical solutions: a kind of steering drive device for automobile headlight, be installed on the vehicle light support, be connected with lamp shade, include upper box cover, lower casing, be loaded on the gear drive in the lid, be located at the outer dc stepper motor of lid, the transmission output shaft that stretches out in the lid, it is characterized in that: gear drive includes at least two group coaxial variable mode-gears, dc stepper motor drives first group of coaxial variable mode-gear by main gear, first group of coaxial variable mode-gear and second group of coaxial variable mode-gear engagement, second group of coaxial variable mode-gear meshes with the annular internal tooth gear again, and the shaft axis of dc stepper motor and the axis of transmission output shaft are on same straight line.Further, for the compactness of drive mechanism, the afterbody transmission gear of gear drive is an annular internal tooth gear, and annular internal tooth gear and transmission output shaft are one.For guaranteeing the steady of output torque, also be provided with 1-3 Support Gear in the lid, Support Gear is evenly distributed on the inboard of annular internal tooth gear and is engaged with.Be provided with the ladder rack that positioning support annular internal tooth gear is used in the lower casing.The groove that two sections circular arc types are arranged above the ladder rack, that installs in the groove has several little steel balls.Also there is the groove of a circle on the lower edge of annular internal tooth gear, the fixing little steel ball that combines of the groove on it and the ladder rack.
Among the present invention, upper box cover, lower casing are to be that primary raw material processes by phenol resin, have higher mechanical strength, good insulativity, heat-resisting, corrosion stability after adding some other filler.Each gear adopts PA resinousness material, has very high mechanical strength, and heat-resisting, coefficient of friction is low, and is wear-resistant, self lubricity, shock absorption and noise reduction.Whole transmission device adopts the resinousness material,
The advantage that has:
1, centrifugalization formula gear transmission, compact conformation, the transmission output torque is large;
2, moment output is steady, and the stability of equilibrium of working gear is good;
3, realize lightweight and reducing production costs;
4, parts are less, and efficiency of assembling is high, are convenient to install and produce.
Description of drawings
Fig. 1 is the mounting structure scheme drawing of the present invention and vehicle light support and lamp shade;
Fig. 2 is mounting structure partition scheme drawing of the present invention;
Fig. 3 is the location diagram of transmission output gear of the present invention.
The specific embodiment
Referring to Fig. 1-Fig. 3, the steering drive device for automobile headlight of present embodiment is installed on the vehicle light support 15 by tightening screw, is connected with lamp shade 16.Steering drive device for automobile headlight includes upper box cover 9, lower casing 10, be loaded on the centrifugalization formula gear drive in the lower casing, be located at the dc stepper motor 11 outside the lower casing 10, the transmission output shaft 12 of gear drive is interior protruding from upper box cover 9, is connected with lamp shade 16.
Fig. 2 is the mounting structure partition scheme drawing of steering drive device for automobile headlight, gear drive includes the first gear 1, the second gear---coaxial variable mode- gear 2A, 2B, the 3rd gear---coaxial variable mode- gear 3A, 3B, the 4th gear 4, the 5th gear---coaxial variable mode- gear 5A, 5B, the 6th gear 6, the seven gears 7, fixed cap 8 on the gear wheel shaft, transmission output shaft 12, the octadentates wheel 13, ladder rack 17.Gear 1 is installed on the turning cylinder of direct current stepper motor 11, the second gear comprises two coaxial variable mode-gears---gear 2A and gear 2B, the 3rd gear comprises two coaxial variable mode-gears---gear 3A and gear 3B, gear 4 is annular internal tooth gears, the 5th gear also is to comprise two coaxial variable mode-gears---quadrant gear 5A and gear 5B, gear 6 be an end with gear, the other end is equipped with compression device, gear 7 and gear 13 all are independent one gears.
Its middle gear 1 is meshed with gear 2B, and gear 2A is meshed with gear 3A, and gear 3B is meshed with gear 4, and gear 4 is meshed with gear 5B and gear 7 again, and gear 5A is meshed with gear 13, and gear 7 is meshed with gear 6 again.
When the rotor banding moving gear 1 of dc stepper motor 11 rotates, produce moment of rotation, because gear 1 is mutually meshing with gear 2B, gear 2B also produces moment of rotation, again since gear 2A and gear 2B be positioned on the same axis, gear 2A also produces moment of rotation, again by identical transfer mode, transmits moment of rotation to gear 4 through gear 3A, 3B.Gear 4 is integrated with transmission output shaft 12, and their central axis is that shaft axis with dc stepper motor 11 is on same straight line.Because gear 4 is meshed with gear 5B and gear 7 again, gear 4 passes to gear 5B and gear 7 to moment of rotation again, and gear 5A and gear 5B are positioned on the same axis, and gear 5A also produces moment of rotation then, driven gear 13 rotations.Gear 6 is subject to the effect of moment of rotation, and coaxial other end compression device shrinks, angle variation range that can the limiting gear device.Gear 3B, gear 5B and gear 7 are evenly distributed in the inboard and while and gear 4 engagements of the internal-gear 4 of annular, play the effect of supporting internal-gear 4, make gear 4 reach stress balance, and output torque is large.
Ladder rack 17 and gear registration mast 18 are connected with lower casing 10, play the effect of positioning support gear.Wherein, ladder rack 17 is between the sidewall and bottom surface of lower casing 10, and the groove of two sections circular arc types is arranged above the ladder rack 17, and that installs in the groove has several little steel balls (not drawing among the figure).Also there is groove corresponding to a circle on the lower edge of gear 4, the fixing little steel ball that combines of the groove on it and the ladder rack .17.Ladder rack 17 can play a supporting role to gear 4 by the little steel ball in the groove like this.When gear 4 rotated, steel ball just and then rotated, because all be spheroid, so friction drag is very little, helps the output of rotating torque.The cylindrical center of gear registration mast 18 projections has centre hole, mainly has been the effect of the center shaft of each gear of location.Thickness according to each gear installation site and gear is different, and the position of each registration mast 18 is not with highly identical yet.
Play a part to support and fixed gear shaft by 10 pairs of gears of lower casing, the transmission of gear is just pressed axial direction like this, from gear 1 to gear 4, and carry-over moment successively.Fixed cap 8 plays fixed gear shaft on the gear.Upper box cover 9 is encapsulated in the box the inside to gear drive, can protect the stability of working gear.
The framework of this drive transmission has that resin makes, and has so just reduced weight and cost.The gear of gear mechanism is to be made by the resin with self-lubricating property, and therefore, gear mechanism just need not be coated with animal fat, has got rid of the possibility of mist of oil lamp.Drive transmission has also just been realized lightweight, compact conformation and purpose cheaply, and efficiency of assembling also improves.
Certainly, only enumerated some better embodiments here, the protection category that other is equal to, structure roughly the same all should belong to this patent repeats no more here.
Claims (6)
1. steering drive device for automobile headlight, be installed on the vehicle light support, be connected with lamp shade, include upper box cover, lower casing, be loaded on the gear drive in the lid, be located at the outer dc stepper motor of lid, the transmission output shaft that stretches out in the lid, it is characterized in that: gear drive includes two groups of coaxial variable mode-gears, dc stepper motor drives first group of coaxial variable mode-gear by main gear, first group of coaxial variable mode-gear and second group of coaxial variable mode-gear engagement, second group of coaxial variable mode-gear meshes with the annular internal tooth gear again, and the shaft axis of dc stepper motor and the axis of transmission output shaft are on same straight line.
2. driving device according to claim 1, the afterbody transmission gear that it is characterized in that gear drive is described annular internal tooth gear, and annular internal tooth gear and transmission output shaft are one.
3. driving device according to claim 1 and 2 is characterized in that also being provided with in the lid 1-3 Support Gear, and Support Gear is evenly distributed on the inboard of annular internal tooth gear and is engaged with.
4. driving device according to claim 3 is characterized in that being provided with in the lower casing ladder rack that positioning support annular internal tooth gear is used.
5. driving device according to claim 4, it is characterized in that ladder rack above the groove of two sections circular arc types is arranged, that installs in the groove has several little steel balls, also there is the groove of a circle on the lower edge of annular internal tooth gear, the fixing little steel ball that combines of the groove on it and the ladder rack.
6. driving device according to claim 3, the material that it is characterized in that upper box cover and lower casing is phenol resin, each gear adopts PA resinousness material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010218264 CN101875327B (en) | 2010-06-21 | 2010-06-21 | Steering drive device for automobile headlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010218264 CN101875327B (en) | 2010-06-21 | 2010-06-21 | Steering drive device for automobile headlight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101875327A CN101875327A (en) | 2010-11-03 |
| CN101875327B true CN101875327B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010218264 Active CN101875327B (en) | 2010-06-21 | 2010-06-21 | Steering drive device for automobile headlight |
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| Country | Link |
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| CN (1) | CN101875327B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555889B (en) * | 2012-03-13 | 2013-11-13 | 北京经纬恒润科技有限公司 | Adaptive spot lamp and steering actuator thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008105518A (en) * | 2006-10-25 | 2008-05-08 | Calsonic Kansei Corp | Camera built-in lamp |
| CN101503077A (en) * | 2009-03-19 | 2009-08-12 | 郭廷麟 | Automobile cornering illuminating apparatus and control method |
| JP4422740B2 (en) * | 2007-04-16 | 2010-02-24 | パナソニック電工竜野株式会社 | Actuator |
| CN201816508U (en) * | 2010-06-21 | 2011-05-04 | 佛山市王氏车灯制造有限公司 | Vehicle head lamp steering transmission linkage |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3996038B2 (en) * | 2002-11-05 | 2007-10-24 | 株式会社小糸製作所 | Vehicle headlamp device |
| JP4279702B2 (en) * | 2003-04-24 | 2009-06-17 | アスモ株式会社 | Rotation drive |
-
2010
- 2010-06-21 CN CN 201010218264 patent/CN101875327B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008105518A (en) * | 2006-10-25 | 2008-05-08 | Calsonic Kansei Corp | Camera built-in lamp |
| JP4422740B2 (en) * | 2007-04-16 | 2010-02-24 | パナソニック電工竜野株式会社 | Actuator |
| CN101503077A (en) * | 2009-03-19 | 2009-08-12 | 郭廷麟 | Automobile cornering illuminating apparatus and control method |
| CN201816508U (en) * | 2010-06-21 | 2011-05-04 | 佛山市王氏车灯制造有限公司 | Vehicle head lamp steering transmission linkage |
Non-Patent Citations (1)
| Title |
|---|
| JP特许第4422740B2 2010.02.24 |
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| Publication number | Publication date |
|---|---|
| CN101875327A (en) | 2010-11-03 |
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Effective date of registration: 20170327 Address after: 528225 Guangdong city of Foshan province Shishan science and Technology Industrial Park, Nanhai District Beiyuan Patentee after: Foshan Wang aviation Optical Technology Co., Ltd. Address before: 528255 Shishan science and Technology Industrial Park, Nanhai District, Foshan, Guangdong Patentee before: Foshan Wangshi auto Lamp Manufacturing Co., Ltd. |