CN102923047B - Magnetostrictive following turning mechanism - Google Patents
Magnetostrictive following turning mechanism Download PDFInfo
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- CN102923047B CN102923047B CN201210424245.8A CN201210424245A CN102923047B CN 102923047 B CN102923047 B CN 102923047B CN 201210424245 A CN201210424245 A CN 201210424245A CN 102923047 B CN102923047 B CN 102923047B
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- magnetic deformation
- xenon lamp
- deformation bar
- lenses
- magnetostrictive
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Abstract
The invention relates to a magnetostrictive following turning mechanism. The magnetostrictive following turning mechanism comprises a spherical base, a leftward-rightward magnetostrictive rod, an upward-downward magnetostrictive rod and a xenon lamp lens assembly; the leftward-rightward magnetostrictive rod and the upward-downward magnetostrictive rod are respectively arranged at the lower part and the upper part of a xenon lamp lens assembly frame; a spherical support is arranged at the lower part of a lamp bowl of the xenon lamp lens assembly; a spherical head is arranged at the lower part of the spherical support and can rotate in the spherical base; the leftward-rightward magnetostrictive rod is driven to be stretched or contracted through an electromagnetic module so as to drive the xenon lamp lens assembly to move leftwards and rightwards; and the upward-downward magnetostrictive rod is driven to be stretched or contracted through the electromagnetic module, so as to drive the xenon lamp lens assembly to move upwards and downwards. According to the magnetostrictive following turning mechanism, a lamp can be 'upwards and downwards' and 'leftwards and rightwards' adjusted based on the magnetostrictive principle according to the characteristic that the degree of freedom in the spherical contact movement direction is high; the magnetostrictive rod can be relatively sensitive, stable and reliable in transmission; and the following turning mechanism has a good application prospect in vehicles, and is worthy to being greatly popularized and applied.
Description
Technical field
The present invention relates to a kind of steering hardware, in particular, the present invention relates to a kind of utilize magnetostriction effect car headlamp about, the Follow-up steering mechanism of up and down light beam adjustment.
Background technology
Existing car headlight device, mainly comprises: head lamp (passing light, country beam), adverse-weather lamp etc.In the use of reality, traditional head lamp system also exists problems.Housing due to light fixture is fixed on without rotating function on car body, and therefore the direction of illumination of head lamp and auto body are consistent.Vehicle is when turning driving, when particularly turning when trackside is more dangerous, if mountain road or night are without the urban highway of street lamp, because car light cannot regulate light angle, usually curve inner side cannot be irradiated to, especially run into misty rain weather, curve ahead road conditions lighting condition is smudgy especially, has greatly threatened the traffic safety at chaufeur night.
Slave steering system is researched and developed for this situation, according to the angle of the speed of a motor vehicle and rotation, moveable xenon lamp module rotates to an angle to bend, the current driving direction of the direction of illumination of car light and vehicle is consistent, to guarantee that chaufeur can have best visiblity at any time, thus ensure that the traffic safety at night.
Existing Follow-up steering system of car lamp generally includes adaptivity steering headlight system (AFS), for carrying out left and right follow-up adjustment to car light.Such as when night turns, AFS according to the steering angle of the speed of a motor vehicle and steering handwheel, can regulate the angle that car light left-right rotation is certain to regulate the irradiation center of car light, car light auto-steering is entered curved, guarantee the high-visibility in bend automatically.But the slave steering system regulative mode mechanism on existing light fixture is complicated, and part is many, and reliability is poor, and cost is high, not easily promotes.
Summary of the invention
In order to solve the above-mentioned technical matters existed in prior art, the object of the present invention is to provide a kind of magnetic deformation Follow-up steering mechanism, it utilizes magnetostriction principle that the current driving direction of the direction of illumination of car light and vehicle is consistent, and ensure that the traffic safety at night.
In order to solve the problems of the technologies described above and realize above-mentioned purpose, the present invention takes following technical scheme:
A kind of magnetic deformation Follow-up steering mechanism, comprises sphere pedestal, left and right magnetic deformation bar, up and down magnetic deformation bar, xenon lamp set of lenses, sphere support, bulb and electromagnetic module; It is characterized in that: left and right magnetic deformation bar, up and down magnetic deformation bar are separately positioned on bottom and the top of xenon lamp set of lenses frame, the lamp lower part of bowl of xenon lamp set of lenses is provided with sphere support, the bottom of sphere support is provided with bulb, bulb can rotate in sphere pedestal, drive elongating or shortening of left and right magnetic deformation bar by electromagnetic module, realize the side-to-side movement of xenon lamp set of lenses; Drive elongating or shortening of upper and lower magnetic deformation bar by electromagnetic module, realize the up-and-down movement of xenon lamp set of lenses.
Left and right magnetic deformation bar described in being driven by electromagnetic module is stretched, and xenon lamp set of lenses is with sphere pedestal and upper and lower magnetic deformation bar for axle rotates, and light realizes sway; Left and right magnetic deformation bar extends, and xenon lamp set of lenses is to right rotation; Shorten then to anticlockwise.The size of the magnetic-field intensity that electromagnetic module utilizes current control to produce and direction, thus control elongating or shortening and its stroke of left and right magnetic deformation bar.
The bar of magnetic deformation up and down described in being driven by electromagnetic module flexible, xenon lamp set of lenses is with sphere pedestal and left and right magnetic deformation bar for axle rotates, and light realizes moving up and down; Upper and lower magnetic deformation bar extends, and xenon lamp set of lenses is rotated down; Shorten and then rotate up.The size of the magnetic-field intensity that electromagnetic module utilizes current control to produce and direction, thus control elongating or shortening and its stroke of left and right magnetic deformation bar.
The material of described magnetic deformation bar is preferably TbDyFe magnetostrictive rod and makes, further preferably for Tb0.15Dy0.72Sm0.08Ga0.05Fe1.3Ti0.3Zn0.2Mn0.2 magnetostrictive rod is made.
Compared with prior art, the present invention has the following advantages:
(1) the present invention utilizes magnetostriction principle and realizes light fixture " up and down ", " left and right " adjustment according to the feature that sphere-contact sense of motion degree of freedom is large by a sphere pedestal, left and right magnetic deformation bar, up and down magnetic deformation bar, simplify lamp interior regulating mechanism, increase the scope that light regulates, the also bending light and the dynamic level that achieve head lamp regulate, and the transmission of magnetic deformation bar is sensitiveer, stablize and reliably, further simplify the structure of slave steering system.
(2) further preferably magnetic deformation bar material further increases its sensitieness, and it is under the condition of-30 to 50 DEG C, all have more stable magnetostriction coefficient, its transmission is more stable and reliable compared with traditional spring material, and can not produce endurance failure.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of magnetic deformation Follow-up steering mechanism of the present invention.
Fig. 2 is the rotation schematic diagram of Ackermann steer angle magnetic deformation Follow-up steering mechanism of the present invention.
The rotation schematic diagram of magnetic deformation Follow-up steering mechanism of the present invention when Fig. 3 is vehicle load change.
Detailed description of the invention
As shown in Figure 1, magnetic deformation Follow-up steering mechanism of the present invention, comprises sphere pedestal 3, left and right magnetic deformation bar 1, up and down magnetic deformation bar 2, xenon lamp set of lenses 4, sphere support 6, bulb 7 and electromagnetic module 5; It is characterized in that: left and right magnetic deformation bar 1, up and down magnetic deformation bar 2 are separately positioned on bottom and the top of xenon lamp set of lenses 4 frame, the lamp lower part of bowl of xenon lamp set of lenses 4 is provided with sphere support 6, the bottom of sphere support 6 is provided with bulb 7, bulb 7 can rotate in sphere pedestal 3, drive elongating or shortening of left and right magnetic deformation bar 1 by electromagnetic module 5, realize xenon lamp set of lenses 4 side-to-side movement; Drive elongating or shortening of upper and lower magnetic deformation bar 2 by electromagnetic module 5, realize the up-and-down movement of xenon lamp set of lenses 4.
As shown in Figure 2, be that Ackermann steer angle Follow-up steering mechanism rotates schematic diagram.Ackermann steer angle, after obtaining vehicle body signal, drives described left and right magnetic deformation bar 1 fore and aft motion by electromagnetic module 5, and now xenon lamp set of lenses 4 is with sphere pedestal 3 and upper and lower magnetic deformation bar 2 for axle rotates, and light realizes sway; Left and right magnetic deformation bar 1 extends, and xenon lamp set of lenses 4 is to right rotation; Shorten then to anticlockwise.
As shown in Figure 3, when being vehicle load change, Follow-up steering mechanism rotates schematic diagram.Vehicle load change or run into when jolting road surface, after obtaining vehicle body signal, drive upper and lower magnetic deformation bar 2 fore and aft motion by electromagnetic module 5, now xenon lamp set of lenses 4 is with sphere pedestal 3 and left and right magnetic deformation bar 1 for axle rotates, and light realizes moving up and down; Upper and lower magnetic deformation bar 2 extends, and xenon lamp set of lenses 4 is rotated down; Shorten and then rotate up.
Described magnetic deformation bar can adopt known TbDyFe material, such as Tb0.27Dy0.73Fe2 ultra-magnetic telescopic bar.But known TbDyFe material is below-10 DEG C, its magnetic magnetic deformation will sharply decline, and thus this material is at the use in winter of the northern area of China severe cold, may cause this slave steering system bad stability, even malfunctioning.Therefore, the present invention also developed the stable Tb0.15Dy0.72Sm0.08Ga0.05Fe1.3Ti0.3Zn0.2Mn0.2 material of a kind of magnetostriction coefficient, and this material magnetostriction coefficient under the stability condition of-30 to 50 DEG C is less than 5% these magnetostriction materials and can prepares by the following method:
According to the a.w. proportioning of said structure, Tb, Dy, Sm and the Ga and the purity that purity are not less than 99.5% are not less than in the raw metal loading melting kettle of Fe, Ti, Zn and Mn of 99.99%.Utilize mechanical pump, lobe pump and diffuser pump vacuumize it and utilize argon gas to clean, continue after cleaning to be evacuated to 10
-2pa-10
-3after Pa, be filled with 0.5atm argon gas wherein as atmosphere gas.Then by heating raw materials also fusing formation molten alloy, be poured into by this molten alloy in the heat-preservation cylinder with elongated cylindrical cavity, the temperature in heat-preservation cylinder is 1200-1250 DEG C, obtains the rare earth ultra-magnetostriction material of directional solidification; Reduce the temperature of heat-preservation cylinder 5 to heat treatment temperature 950 DEG C, and be incubated 2h, finally heat-preservation cylinder is opened and slowly cool to room temperature and obtain Tb0.15Dy0.72Sm0.08Ga0.05Fe1.3Ti0.3Zn0.2Mn0.2 magnetic deformation bar.This magnetic deformation bar has <110> texture, under the stability condition of-30 to 50 DEG C, magnetostriction coefficient is stabilized in 0.5,3-0.55%, rate of change is less than 5%, during for magnetic deformation bar Transmission, more stable, reliable and sensitieness is high, good weatherability.
Described bulb surface has self-lubricating coat in use, and to improve the sensitieness of its transmission, described self-lubricating coat in use can adopt conventional alkaline earth metal fluoride material.Painting method can adopt conventional thermal spraying and magnetron sputtering etc.
The inside face that described sphere pedestal contacts with bulb also has self-lubricating coat in use.Can use compound self-lubricating coat in use from the angle improving frictional behaviour and lubricity in addition, preferably, the self-lubricating coat in use on described bulb surface is by the Cr of 12-18wt%
3c
2, the BaF of 30-45wt%
2and the composite powder that the Ni of surplus is formed is formed through thermal spraying.The self-lubricating coat in use of the inside face that described sphere pedestal contacts with bulb is by the Cr of 12-18wt%
3c
2, the BaF of the NiB of 15-25wt%, 10-20wt%
2and the composite powder that the Ni of surplus is formed is formed through thermal spraying.By the lubricant coating of this specific design, can ensure the lubricity of frictional transmission, and the resistance to abrasion of sphere pedestal is excellent equally, reliability and stability can be guaranteed.
The present invention utilizes magnetostriction principle to provide a kind of structure simple magnetic deformation Follow-up steering mechanism, and it utilizes magnetostriction principle and realizes " up and down ", " left and right " adjustment of light fixture according to the feature that sphere-contact sense of motion degree of freedom is large; And the transmission of magnetic deformation bar is sensitiveer, stablize and reliably, this Follow-up steering mechanism has a good application prospect in vehicle, should vigorously promote the use.
Except above-mentioned detailed description of the invention, the present invention can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation form, all drop on the protection domain of application claims.
Claims (1)
1. a magnetic deformation Follow-up steering mechanism, comprises sphere pedestal, left and right magnetic deformation bar, up and down magnetic deformation bar, xenon lamp set of lenses, sphere support, bulb and electromagnetic module; It is characterized in that: left and right magnetic deformation bar, up and down magnetic deformation bar are separately positioned on bottom and the top of xenon lamp set of lenses frame, the lamp lower part of bowl of xenon lamp set of lenses is provided with sphere support, the bottom of sphere support is provided with bulb, bulb can rotate in sphere pedestal, left and right magnetic deformation bar described in being driven by electromagnetic module is stretched, xenon lamp set of lenses is with sphere pedestal and upper and lower magnetic deformation bar for axle rotates, and light realizes sway; Left and right magnetic deformation bar extends, and xenon lamp set of lenses is to right rotation; Shorten then to anticlockwise; The size of the magnetic-field intensity that electromagnetic module utilizes current control to produce and direction, thus control elongating or shortening and its stroke of left and right magnetic deformation bar; The bar of magnetic deformation up and down described in being driven by electromagnetic module flexible, xenon lamp set of lenses is with sphere pedestal and left and right magnetic deformation bar for axle rotates, and light realizes moving up and down; Upper and lower magnetic deformation bar extends, and xenon lamp set of lenses is rotated down; Shorten and then rotate up, the size of the magnetic-field intensity that electromagnetic module utilizes current control to produce and direction, thus control elongating or shortening and its stroke of left and right magnetic deformation bar; The material of described magnetic deformation bar is made up of Tb0.15Dy0.72Sm0.08Ga0.05Fe1.3Ti0.3Zn0.2Mn0.2 magnetostrictive rod; Described mangneto stretch rod adopt raw metal be purity be not less than 99.5% Tb, Dy, Sm and Ga and purity be not less than 99.99% Fe, Ti, Zn and Mn; Heated by described raw metal and melt and form molten alloy, be poured into by this molten alloy in the heat-preservation cylinder with elongated cylindrical cavity, the temperature in heat-preservation cylinder is 1200-1250 DEG C, obtains the rare earth ultra-magnetostriction material of directional solidification; Reduce the temperature of heat-preservation cylinder to heat treatment temperature 950 DEG C, and be incubated 2h, finally heat-preservation cylinder is opened and slowly cool to room temperature and obtain described magnetostrictive rod.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210424245.8A CN102923047B (en) | 2012-10-31 | 2012-10-31 | Magnetostrictive following turning mechanism |
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|---|---|---|---|
| CN201210424245.8A CN102923047B (en) | 2012-10-31 | 2012-10-31 | Magnetostrictive following turning mechanism |
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| CN102923047A CN102923047A (en) | 2013-02-13 |
| CN102923047B true CN102923047B (en) | 2015-02-18 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318251A (en) * | 2015-12-24 | 2016-02-10 | 赵兴文 | Method for normally modifying automobile halogen lamp |
| CN108394462B (en) * | 2018-05-02 | 2019-11-26 | 吉林大学 | Power sense feedback device and its application method made from giant magnetostrictive material |
| CN108394463B (en) * | 2018-05-02 | 2019-11-26 | 吉林大学 | Giant magnetostrictive material power sense feedback device and its application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308379A (en) * | 2000-02-10 | 2001-08-15 | 东芝株式会社 | Supermangnetostrictive material and its preparation process and magnetostrictive actuator and sensor |
| CN101712295A (en) * | 2009-09-21 | 2010-05-26 | 胡宇峰 | Vehicle moving-magnet follow-up steering headlight system |
| CN102278712A (en) * | 2011-05-31 | 2011-12-14 | 江苏文光车辆附件有限公司 | Novel follower steering mechanism |
-
2012
- 2012-10-31 CN CN201210424245.8A patent/CN102923047B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308379A (en) * | 2000-02-10 | 2001-08-15 | 东芝株式会社 | Supermangnetostrictive material and its preparation process and magnetostrictive actuator and sensor |
| CN101712295A (en) * | 2009-09-21 | 2010-05-26 | 胡宇峰 | Vehicle moving-magnet follow-up steering headlight system |
| CN102278712A (en) * | 2011-05-31 | 2011-12-14 | 江苏文光车辆附件有限公司 | Novel follower steering mechanism |
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| CN102923047A (en) | 2013-02-13 |
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Owner name: ZHENGZHOU WENGUANG VEHICLE FITTINGS CO., LTD. Free format text: FORMER OWNER: JIANGSU WENGUANG VEHICLE ACCESSORIES CO., LTD. Effective date: 20150506 |
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Free format text: CORRECT: ADDRESS; FROM: 212300 ZHENJIANG, JIANGSU PROVINCE TO: 450016 ZHENGZHOU, HENAN PROVINCE |
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Effective date of registration: 20150506 Address after: 450016 Zhengzhou economic and Technological Development Zone, Henan, Zhengzhou Province, seventeenth East Road and five South Road intersection Patentee after: Zhengzhou Wenguang vehicle accessories Co., Ltd. Address before: 212300 Yongxing City, Jiangsu Province, Danyang Town, visit the town of sinus Zhuang Road, No. 2 Patentee before: Jiangsu Wenguang Vehicle Fittings Co., Ltd. |