CN201276196Y - Southward pointing cart structure - Google Patents
Southward pointing cart structure Download PDFInfo
- Publication number
- CN201276196Y CN201276196Y CNU2008201520272U CN200820152027U CN201276196Y CN 201276196 Y CN201276196 Y CN 201276196Y CN U2008201520272 U CNU2008201520272 U CN U2008201520272U CN 200820152027 U CN200820152027 U CN 200820152027U CN 201276196 Y CN201276196 Y CN 201276196Y
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- bevel gears
- gear
- wheel
- south
- pinion carrier
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Abstract
The utility model relates to a direction indication device with a vehicle structure type by utilizing the mechanical gear transmission theory, in particular to a southward pointing cart structure; the southward pointing cart is a single-thill two-wheel cart; two vertical bevel gears with different diameters are coaxially connected with the left and the right wheels; the two vertical bevel gears are respectively meshed with horizontal bevel gears which are up and down coaxial and are different in diameters; a planet carrier is coaxially arranged between the upper and lower horizontal bevel gears; a direction indication hand is positioned at the upper end of the central shaft of the planet carrier; a planet gear is allocated on the planet carrier; and the planet gear is respectively meshed and transmitted with the opposite surface of the upper and the lower horizontal bevel gears. The structure is simple, the use is convenient and intuitive, and the direction indication is accurate, the structure can be used as the assistant teaching tool for the physics learning of middle school students, and also can be used for connecting mechanical or electric toys, so as to design out the toys with recreational, scientific and technical meanings, and lead children to be taught through lively activities.
Description
(1) technical field
The utility model is a kind of direction indicating device, particularly relates to a kind of mechanical gear transmission principle that utilizes, and is the direction indicating device of vehicle structure form.
(2) background technology
Vehicle pointing to the south is that an important practical of Ancient Times in China is novel, passes on from one to another Yellow Emperor, a legendary ruler and public epoch in week to have occurred, and the Zhang Heng of the Eastern Han Dynasty, the Zu Chongzhi of the three state's horse an ancient unit of weight and the Northern and Southern Dynasties was all made vehicle pointing to the south, duplicated again during respectful and Wu Deren to Song Yan.Unfortunately successive dynasties later age can't provide its concrete structure except that some functional effects of fragmentary record.
Modern age, people also did some developments.But take a broad view of it, or low precision (as adopting clutch type or friction-type etc.); Or structure member numerous and diverse (as adopting multistage conduction or some differential gear train etc.); Or indicate not (as adopting relative indicating means etc.) directly perceived.How to obtain a kind of comparatively ideal device? should simplify accurately again, and will be convenient to make, always be an interested project of science fan.
(3) utility model content
The purpose of this utility model has provided a kind of simple in structure, and transmission is correct, indicates accurate vehicle pointing to the south structure.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of vehicle pointing to the south structure, described vehicle pointing to the south is single shafts cart, it is characterized in that, with about the coaxial different vertical bevel gear of left and right two diameters that connects respectively of two wheels, left and right two vertical bevel gears mesh upper and lower two coaxial, the unequal horizontal bevel gears of diameter again respectively;
Between upper and lower two horizontal bevel gears, the coaxial pinion carrier that is provided with, the upper end of pinion carrier center shaft stands a direction pointer, pinion carrier configuration line star-wheel;
Described satellite gear respectively with the opposite face engaged transmission of upper and lower two horizontal bevel gears.
Described direction pointer is that image refers to hand shape structure.
Adopt the technical program, when sulky vehicle is being pulled walking forward, left and right sides wheel rolls forward, has driven coaxial left and right two vertical bevel gears and has rotated forward, and left and right two vertical bevel gears are respectively from and arranged on left and right sides and two horizontal gear engagements of configuration up and down.Between upper and lower two horizontal bevel gears, the coaxial pinion carrier that is provided with, the upper end of pinion carrier center shaft stands a direction pointer, pinion carrier configuration line star-wheel; Satellite gear respectively with the opposite face engaged transmission of upper and lower two horizontal bevel gears.Therefore, after two horizontal gears rotate up and down, can force the pinion carrier in the middle of being positioned to be rotated.
Get transmitting ratio λ=1, promptly two vertical bevel gears are with identical with the horizontal bevel gear diameter of its ingear respectively.
When the straight walking of vehicle, about two wheels, about two vertical gears, two horizontal gears all produce identical corner up and down, planetary wheel in the middle of causing only has " rotation " and does not have " revolution ", promptly do not disposed the rotation of planetary pinion carrier, thereby the direction pointer on the pinion carrier axis do not deflect yet, and shows that vehicle pointing to the south is in straight walking.
Work as Ackermann steer angle, the wheel travel distance difference of the left and right sides, the angle of rotation are also different, the pivot angle that is reflected to two horizontal gears has also produced deviation, small one and large one directly causes the satellite gear of middle planetary frame not only to have " rotation ", and also has " revolution "; Pinion carrier is rotated along with planetary " revolution ", and its direction determined by the big side of pivot angle in the horizontal gear up and down, and is half of difference of the two.
When wheel diameter equated with wheelspan, the deflection of pinion carrier was identical with the corner size of vehicle pointing to the south, and direction is opposite, is embodied in vehicle and turns and unswerving its sensing of pointer.
The beneficial effects of the utility model find expression in: simple and reasonable, and compact and indicating accurately.
The structure of this vehicle pointing to the south and principle are all distincter, can be used as the assistant teaching aid of middle school student's physics study, are familiar with and deepen the knowledge of mechanical drive and transmitting ratio aspect thus.
Also can combine, design and produce some later-model toys, make it to have stronger recreational and scientific and technological intension, allow children in amusement, accept corresponding knowledge, to improve the interest that new knowledge is probed into most of machineries or dynamo-electric toy.
(4) description of drawings
The structural representation that Fig. 1 watches from fore-and-aft direction for a kind of vehicle pointing to the south structure of the utility model;
Fig. 2 is the structural representation of satellite gear, pinion carrier and guide axle;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4 is the walking of a kind of vehicle pointing to the south structure of the utility model, the demonstration schematic diagram of turning.
Among the figure: the 1st, left wheel, the 2nd, left side axle, the 3rd, the vertical gear in a left side, the 4th, following horizontal gear, the 5th, satellite gear, the 6th, pinion carrier, the 7th, guide axle, the 8th, last horizontal gear, the 9th, right vertical gear, the 10th, right axle, the 11st, right wheel.
(5) specific implementation method
Further describe structure of the present utility model below in conjunction with accompanying drawing.
If the radius of left wheel 1 and right wheel 11 is R0, the vertical gear 3 in a left side is λ 1 with the ratio of the radius of following horizontal gear 4, and right vertical gear 9 is λ 2 with the ratio of the radius of last horizontal gear 8.After vehicle pointing to the south has rotated the α angle, advanced the respectively distance of S1=R1* α and S2=R2* α of 11 of left wheel 1 and right wheels, and the also corresponding angle of having rotated β 1=S1/R0 and β 2=S2/R0 of cooresponding left wheel 1 and right wheel 11.By the gear ratio, as can be known at this moment: the corner of following horizontal gear 4: θ 1=β 1* λ 1=S1/R0* λ 1, the corner of last horizontal gear 8: θ 2=β 2* λ 2=S2/R0* λ 2 both directions are opposite, from constructional drawing as can be known, pinion carrier 6 drives the corner that points to axle 7, the change angle that is the guide wooden man is half of the difference of down horizontal gear 4 and last horizontal gear 8 corners, be designated as α ',: α '=(θ 1-θ 2)/2=(S1/R0* λ 1-S2/R0* λ 2)/2=(R1* λ 1-R2* λ 2) α/2R0, by following formula as can be known: when getting: λ 1=λ 2=1, and two between-wheel spacing D (| when R1-R2|) being wheel diameter 2R0, α '=α.Or: when λ 1=λ 2=λ, as long as satisfied two between-wheel spacing D (| R1-R2|) ratio with wheel diameter 2R0 is: 1/ λ can get equally: α '=α.
Get: λ 1=λ 2=λ=1, the vertical gear 3 in left side this moment is big or small in full accord with following horizontal gear 4, and right vertical gear 9 is also identical with last horizontal gear 8, and benefit is processing easily and allows to exchange.Left side axle 2 interlocks altogether of the vertical gear 3 of left wheel 1 with a left side, right wheel 11 and right altogether axle 10 interlocks of right vertical gear 9, i.e. the rotation of wheel can rotate respective gears by total semiaxis synchronously.Following horizontal gear 4 and vertical with a left side respectively gear 3 of last horizontal gear 8 and right vertical gear 9 engagements, by this one-level engagement, with left wheel 1 and right wheel 11 along the pivot angle of vertical surface shine upon for horizontal gear 4 and last horizontal gear 8 down along the corner of horizontal surface, and size is consistent.
Its active flank has satellite gear 5 engagements of internal tooth and pinion carrier 6, and can be around sensing axle 7 rotations of pinion carrier 6.So far, except that satellite gear 5, the axis of all rotor wheels is all on same plane.The fine setting between-wheel spacing makes it to equate with wheel diameter.Doing any advancing when vehicle pointing to the south falls back or when turning to, it points to the upright guide wooden man in axle 7 tops and will reflect unswerving its sensing synchronously.
The structure of this vehicle pointing to the south and principle are all distincter, and be simple and reasonable, and compact and indicating accurately can be used as the assistant teaching aid of middle school student's physics study, is familiar with and deepens the knowledge of mechanical drive and transmitting ratio aspect thus.
Also can combine, design and produce some later-model toys, make it to have stronger recreational and scientific and technological intension, allow children in amusement, accept corresponding knowledge, to improve the interest that new knowledge is probed into most of machineries or dynamo-electric toy.
On the basis of vehicle pointing to the south principle, can make and research and develop some automatic tracking devices, as the Dynamic Photography platform or aim at cannon etc. voluntarily.
The demand that a lot of automatic trackings aspect is often arranged in the life, as: sports photography, the photography of high speed animal, big scene film making and monitoring tracking etc. also need the handy cannon of aiming voluntarily in the military affairs, and some unmanned probing devices in the scientific research.Its servo control unit can realize driven in synchronism by the running of detection sensing axle 7, make the locomotive (or cannon) in travelling aim at same direction, and the people only need do some range finding and finely tune just passable this moment for controlling.
The vehicle pointing to the south of trip map can be write down and draw to development automatically.
We know a rolling glueballs in mechanical mouse, the friction interlock is the thin roll shaft of pair of orthogonal with it, in rectangular coordinate system, corresponds respectively to X-axis and Y-axis, and the roll shaft end respectively has one group of grating wheel and electro-optical tubes combination.When mouse moves, the rolling of glueballs will cause the rotation of grating wheel, through the detection and the corresponding calculating of electro-optical tubes, can learn mouse having moved along X-axis and Y-axis.
At this, the combination of two groups of grating wheels and electro-optical tubes can be installed in respectively on the steering shaft 7 of vehicle pointing to the south and on left side axle 2 or the right axle 10.Make vehicle pointing to the south be in the polar coordinate system, when it was advanced, the former can predict the variation of polar angle, and the latter can predict the variation in utmost point footpath.Can learn that through corresponding conversion the correspondence of vehicle pointing to the south in the X-Y plane system of axes changed.
With above-mentioned variation corresponding to X-axis and Y-axis, form log file through the computer input, through showing and printout, can obtain the travel path of vehicle pointing to the south again.
As above-mentioned technology and GPS position fixing system are organically combined, go out some new application in military field and civilian aspect developing surely.
Claims (1)
1. vehicle pointing to the south structure, described vehicle pointing to the south is single shafts cart, it is characterized in that, with about the coaxial different vertical bevel gear of left and right two diameters that connects respectively of two wheels, left and right two vertical bevel gears mesh upper and lower two coaxial, the unequal horizontal bevel gears of diameter again respectively;
Between upper and lower two horizontal bevel gears, the coaxial pinion carrier that is provided with, the upper end of pinion carrier center shaft stands a direction pointer, pinion carrier configuration line star-wheel;
Described satellite gear respectively with the opposite face engaged transmission of upper and lower two horizontal bevel gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520272U CN201276196Y (en) | 2008-08-15 | 2008-08-15 | Southward pointing cart structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201520272U CN201276196Y (en) | 2008-08-15 | 2008-08-15 | Southward pointing cart structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201276196Y true CN201276196Y (en) | 2009-07-22 |
Family
ID=40893778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201520272U Expired - Fee Related CN201276196Y (en) | 2008-08-15 | 2008-08-15 | Southward pointing cart structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201276196Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259664A (en) * | 2011-04-29 | 2011-11-30 | 上海市莘格高级中学 | South-pointing vehicle |
-
2008
- 2008-08-15 CN CNU2008201520272U patent/CN201276196Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259664A (en) * | 2011-04-29 | 2011-11-30 | 上海市莘格高级中学 | South-pointing vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090722 Termination date: 20100815 |