CN2835056Y - Front-wheel planet-gear drive and rear wheel guide bicycle - Google Patents
Front-wheel planet-gear drive and rear wheel guide bicycle Download PDFInfo
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- CN2835056Y CN2835056Y CN 200520143129 CN200520143129U CN2835056Y CN 2835056 Y CN2835056 Y CN 2835056Y CN 200520143129 CN200520143129 CN 200520143129 CN 200520143129 U CN200520143129 U CN 200520143129U CN 2835056 Y CN2835056 Y CN 2835056Y
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Abstract
The utility model relates to a front-wheel planet-gear drive and rear wheel steering bicycle, which is characterized in that the bicycle is composed of a front wheel [1] with a planet-gear transmission mechanism [2], a vehicle frame [3], a backrest chair [4], a rear wheel [7], a rear fork [6], and a handle link mechanism. The planet-gear transmission mechanism comprises a planet wheel carrier [14], three planet gears [15], a sun wheel [17], and an internal gear ring [16], wherein the internal gear ring [16] is fixed. Rotation is input by the planet wheel carrier [14] and is output to a flower drum cylinder [19] of the front wheel by the sun wheel [17] through a ratchet wheel [18]. The bicycle cancels handle bars and a front fork. The utility model operates a handle [9], a draw rod [8], a back fork cross arm [25], a rear fork [7], and a rear wheel [6] through the handle link mechanism and controls the advance direction. Since the bicycle uses front wheel drive and rear wheel steering, height of the bicycle is reduced; people can lowly sit on a seat [4] for pedaling so as to make the bicycle advance. A vehicle frame [3] is provided with a streamline type rectifying cover [5] which can shield wind, rain and sunlight. Accordingly, wind resistance is reduced and riding efficiency is increased.
Description
Technical field
The utility model relates to a kind of bicycle, be specifically related to a kind of adopt planetary gear construction design-calculated f-w-d and later on wheel as the bicycle of wheel flutter.
Background technology
Over more than 100 year, standard bicycle has all adopted front-wheel steering and structure that trailing wheel drives with chain-driving, the own reasonableness that its exists of this structure, but there is the center of gravity height simultaneously in this structure bicycle, and windage is big, defectives such as riding safety difference.At present, as new technical scheme, the bicycle structure that has occurred multiple f-w-d both at home and abroad, in this class scheme, the bicyclist scrunches the crank step that is contained on the front-wheel, relies on gear transmission to drive front-wheel, bicycle is advanced, greatly reduce the center of gravity of saddle like this, reduced windage, improved safety.
In the present technical scheme, the gear mechanism of f-w-d can be divided into two classes again: a class is ordinary gear transmission (or claiming fixed shaft gear train), and as the disclosed patent 89211470.3 of Chinese patent, name is called " Frontwheel driven bicycle "; One class is epicyclic gear transmission (or claim planet circular system), the disclosed patent 03220235.0 of Chinese patent for example, and name is called " front-wheel planet gear drives bicycle ".The former gear drive needs many rooted teeth wheel shaft, complex structure, and volume is big, and the latter only needs a main shaft, compact conformation, driving efficiency height.
Summary of the invention
Though above-described Frontwheel driven bicycle, particularly the bicycle of front-wheel planet gear drives can reduce people's car weight heart height, obtain compact conformation, driving efficiency is higher than the chain-drive new bicycle, but the bicycle front-wheel in this class technical scheme is a drive wheel, be again steering wheel,, also brought handle-bar that double swerve, car direction problem more rambunctious are arranged simultaneously so scrunch the step crank when driving the main shaft of kink in the front-wheel Decorative drum.
In order to keep the advantage of front-wheel planet gear drives bicycle, overcome the difficult defective of its direction control simultaneously, in the technical program, adopted and the diverse structure of standard bicycle, promptly the front-wheel planet gear drives and later on wheel as steering wheel come controlling party to structure.
The technical solution adopted in the utility model is: a kind of employing front-wheel planet gear drives, and later wheel is as the bicycle of wheel flutter, comprise front-wheel [1], planetary gear mechanism [2], with the front-wheel fixing vehicle frame [3] of bearing seat [12] and [21], be contained in the low center of gravity backrest seat [4] on the vehicle frame [3], described bicycle cancellation front fork and handlebar, and trailing wheel [7] is contained on the back vent [6], this back vent [6] has the 26S Proteasome Structure and Function the same with the standard bicycle front fork, by handle [9], connecting rod [8], connecting rod mechanisms such as back vent transverse arm [25] and bearing pin handle back vent [6] and trailing wheel [7] controlling party to.
Description of drawings
Accompanying drawing 1 is the utility model overall structure scheme drawing
Accompanying drawing 2 is the left view of Fig. 1
Accompanying drawing 3 is the birds-eye view of Fig. 1
Accompanying drawing 4 is the utility model front-wheel planet gear drives assembly drowing
Accompanying drawing 5 is the utility model front-wheel planet gear drives schematic diagram
Accompanying drawing 6 is that the utility model trailing wheel controlling party is to structural representation
Accompanying drawing 7 is the left view of accompanying drawing 6
Accompanying drawing 8 is the birds-eye view of accompanying drawing 6
In the above accompanying drawing: [1], front-wheel; [2], planetary gear mechanism; [3], vehicle frame; [4], backrest seat; [5], fairing; [6], back vent; [7], trailing wheel; [8], pull bar; [9], handle; [10], crank; [11], step; [12], front-wheel right bearing seat; [13], needle bearing; [14], planetary wheel carrier; [15], planetary wheel; [16], internally toothed annulus; [17], sun wheel; [18], ratchet; [19], front-wheel Decorative drum; [20], Decorative drum neck bearing; [21], brake drum of front wheel right hand and left hand bearing seat; [22], flat key; [23], main shaft; [24], back vent column; [25], back vent transverse arm; [26], perpendicular bearing pin; [27], fixing cotter axle; [28], movable transverse bearing pin.
The specific embodiment
1, as shown in Figure 1, front-wheel planetary gear mechanism [2] is contained on the axial location of front-wheel [1], and is fixed on the front of vehicle frame [3].The cyclist scrunches step [11], drives front-wheel [1] by crank [10], and bicycle is advanced.
As shown in Figure 4, further describe sun and planet gear [2].Sun and planet gear [2] comprises main shaft [23], and [23] one on main shaft is installed on the preceding right bearing seat [12] of vehicle frame, and passes from the center of gear mechanism, is installed on the preceding opposite side left shaft holder [21] of vehicle frame.Two groups of bearings [20] are housed in the front-wheel Decorative drum [19], and Decorative drum [19] passes through bearing [20] kink on main shaft [23].Left and right sides step [11] drives crank [10], make main shaft [23] rotation, planetary wheel carrier [14] is affixed with flat key [22] and main shaft [23], the first-class branch of planetary wheel carrier [14] is equipped with 3 planetary wheels [15], 3 planetary wheels [15] rotation on the one hand, mesh on the one hand with in the internally toothed annulus [16] that is fixed on the vehicle frame, with sun wheel [17] external toothing of kink on main shaft [23], sun wheel [17] other end is equipped with ratchet [18], with front-wheel Decorative drum [19] engagement, sun wheel [17] by needle bearing [13] kink on main shaft [23].Therefore, after main shaft [23] drives planetary wheel carrier [14] rotation, drive sun wheel [17] rotation again, drive front-wheel Decorative drum [19] rotation by ratchet [18] thus, the bicycle speedup is advanced by satellite gear [15] engaged transmission.
Below in conjunction with accompanying drawing 5, the calculating of epicyclic gear transmission principle and transmission speed ratio is described.
The utility model epicyclic gear transmission type is the NGW type.In volume P620 table 8-286 in " mechanical design handbook " (Chemical Industry Press), the transmitting ratio computing formula is:
Annotate:
For internally toothed annulus fixedly the time, from planetary wheel carrier X to sun wheel
Transmitting ratio.
Wherein sun wheel [17] is
Internally toothed annulus [16] is
Planetary wheel [15] is
Planetary wheel carrier is X.
Aforementioned calculation formula explanation crank [10] drives main shaft [23] changes 1 circle, and sun wheel [17] is changeed 2.52 circles, and the front-wheel Decorative drum also changes 2.52 circles, is the identical speedup motion of direction, and this moment, the bicycle speed ratio was 1: 2.52 (the standard bicycle speed ratio is 1: 2.25).
What 2, the technical program had that essence changes than 03220235.0 patented technology is the bicycle that " f-w-d, front-wheel steering " is changed into " f-w-d, rear-axle steering ".
Overall construction drawing is seen accompanying drawing 1,2,3.
The produced sample car of patented technology by 03220235.0, double swerve and car direction problem more rambunctious appear in handle-bar when finding to ride in tentative process.This be because, front-wheel be drive wheel be again steering wheel, and the step crank just is contained on the axis of front-wheel, firmly scrunches in the process at left and right sides pin like this, causes the front-wheel double swerve, causes the handle-bar double swerve, the difficult control of direction.
In order to improve the difficult defective of bicycle directional control, in the technical program, front-wheel [1] is fixed on the vehicle frame [3], cancellation front fork and handlebar, be contained on the back vent [6] and trailing wheel [7] changed into, this back vent [6] has the 26S Proteasome Structure and Function the same with the standard bicycle front fork, back vent drive the trailing wheel controlling party to.That is to say, standard bicycle is turned around ride, the trailing wheel of standard bicycle as front-wheel, the front-wheel of standard bicycle as trailing wheel.
Cancel after front fork and the handlebar in the technical program, with cover simple connecting rod mechanism and a handle handle back vent [6] controlling party to, therefore, scrunch the fluctuation that step [11] crank [10] that is equipped with on the front-wheel axis can not cause the bicycle working direction in any case.
Below in conjunction with accompanying drawing 6,7,8 further specify the technical program be how to rely on handle trailing wheel come controlling party to.
The trailing wheel controlling party is to being finished by a back vent [6] and a cover connecting rod mechanism.
Connecting rod machine bar by be contained on the back vent [6] about two back vent transverse arms [25], two perpendicular bearing pins [26], two pull bars [8] and two handles [9] and two fixedly cotter axle [27] and two movable transverse bearing pins [28] are formed.
Trailing wheel [7] is contained on the back vent [6], and the back vent column [24] of back vent [6] passes through upper and lower steel bowl kink in the standpipe of vehicle frame [3].
See accompanying drawing 6,7,8, in the time will handling the car right-hand turning, right side handle [9] is pulled through angle backward
(left and right sides handle [9] all is fixed on the vehicle frame [3] by fixing cotter axle [27]).Handle [9] lower end travels forward around fixing cotter axle [27], and drive pull bar [8] and travel forward this moment, and pull bar [8] spurs the back vent transverse arm [25] that is contained on the back vent [6] again, and transverse arm [25] just makes the back vent column turn over equal angular around axial line
At this moment, trailing wheel is to the left avertence over-angle
The bicycle veer of just turning right is advanced.
When want bicycle operated left-handed turning to the time, steer direction is with above opposite, promptly left handle [9] toward post-tensioning, drive left lever [8], left back fork transverse arm [25] rotates back vent column [24] in the opposite direction, and the past left steering of bicycle is advanced.
3, in existing 03220235.0 patented technology, front-wheel planet gear drives technical scheme is used variable speed planetary gear mechanism, promptly each side establish the different planetary gear mechanism of a cover ratio of number of teeth at front wheel frame, and a cover adds that the ratchet of band female splines endwisely slips clutch speed-changing therein, and will be by a cover push rod, crown bar pin, the post rod mechanism that stage clip and small pressure spring are formed is controlled clutch, though can play the conversion of small one and large one two kinds of speed ratios like this, but mechanism's complexity, so give briefly in this programme, have only an aforesaid cover planetary gear mechanism to realize driving.
4, because the technical program has been carried out f-w-d, rear-axle steering, the people's overall height degree that makes bicycle compare standard bicycle reduces greatly, can make vehicle frame (dress backrest seat part) drop to apart from ground and have only 250mm, the actual employing of cyclist leans against sitting posture, no longer adopt and ride appearance, meet principle of human engineering fully.Have following 4 big advantages:
(1), overcome the pressure that gives the male prostate position when standard bicycle is ridden, make bicycle have more the fitness campaign characteristics.
(2), when the people leans against on seat back, easier having an effect, the pedal legpower can send the power greater than 1.5 times of standard bicycles.
(3), safety factor increases, and can make old man and child especially by bike in case of emergency, adopts the posture that is sitting on the saddle to land with both feet rapidly, do not stride down car and drop on a side and stop and do not need to lose seat.
(4), since the technical program people overall height degree about 1150mm-1200mm, and standard bicycle people overall height degree has reduced 500mm about 1700mm, so the stream line pattern fairing of seeking shelter from wind and rain, sheltering from sunshine can be installed on car load.
Above-mentioned all further describe, only be that explanation technical conceive of the present utility model and characteristics, its purpose are to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (4)
1, a kind of front-wheel planet gear drives, rear-axle steering bicycle comprise the handle and connecting rod mechanism of front-wheel [1], planetary gear mechanism [2], vehicle frame [3], backrest seat [4], trailing wheel [7], back vent [6] and steer direction.It is characterized in that: described gear drive [2] is contained in the front wheel spindle line position of vehicle frame.Step [11], crank [10] are fixed on the main shaft [23], drive front-wheel Decorative drum [19] by sun and planet gear.Sun and planet gear comprises planetary wheel carrier [14], at least 3 planetary wheels [15], a sun wheel [17] and an internally toothed annulus [16].Planetary wheel carrier [14] is fixed on the main shaft [23] with flat key [22], and internally toothed annulus [16] is fixed on the vehicle frame [3] of front-wheel one side.Divide equally the planetary wheel [15] that 3 energy rotations are housed on the planetary wheel carrier [14], satellite gear [15] again with sun wheel [17] external toothing, and mesh simultaneously with in the internally toothed annulus [16], sun wheel [17] one ends are fixed with ratchet [18], ratchet [18] and front-wheel Decorative drum [19] engagement.Main shaft [23] is supported on vehicle frame [3] preceding the front-wheel right bearing seat [12] and brake drum of front wheel right hand and left hand bearing seat [21], and front-wheel Decorative drum [19] passes through bearing [20] kink on main shaft [23].
2, f-w-d according to claim 1, rear-axle steering bicycle, it is characterized in that: described bicycle cancellation front fork and handlebar, and trailing wheel [7] is contained on the back vent [6], back vent [6] and standard bicycle front fork structure, function are identical, back vent column [24] and vehicle frame [3] be by last lower steel bowl movable set, and with a cover handle and connecting rod mechanism drive back vent [6] and trailing wheel [7] controlling party to.Handle and connecting rod mechanism comprises left and right sides handle [9], left and right sides pull bar [8], left and right sides back vent transverse arm [25], and fixedly cotter axle [27], 2 movable transverse bearing pins [28] are connected with 2 by the perpendicular bearing pin [26] of 2 activities respectively.Front-wheel [1] is fixedly mounted on vehicle frame [3] front by brake drum of front wheel right hand and left hand bearing seat [21] and front-wheel right bearing seat [12], only makes drive wheel, does not make steering wheel.
3, according to the described bicycle of claim 1, it is characterized in that: vehicle frame [3] is very low, and backrest seat [4] is located at vehicle frame [3] centre, and the people rides seat, is sitting on the seat but lean against seat summary layback, and two legs are flat forward to be stretched, and bipod scrunches crank [10], step [11].
4, bicycle according to claim 3 is characterized in that: can fix a stream line pattern fairing [5] on described vehicle frame [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143129 CN2835056Y (en) | 2005-11-17 | 2005-11-17 | Front-wheel planet-gear drive and rear wheel guide bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520143129 CN2835056Y (en) | 2005-11-17 | 2005-11-17 | Front-wheel planet-gear drive and rear wheel guide bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2835056Y true CN2835056Y (en) | 2006-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520143129 Expired - Fee Related CN2835056Y (en) | 2005-11-17 | 2005-11-17 | Front-wheel planet-gear drive and rear wheel guide bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2835056Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941890A (en) * | 2012-11-06 | 2013-02-27 | 朱幕松 | Handrail backrest-type chain-free health-care bicycle |
| CN103552648A (en) * | 2013-10-29 | 2014-02-05 | 苏州市职业大学 | Bicycle |
| CN108674559A (en) * | 2018-07-05 | 2018-10-19 | 张家港川梭车业有限公司 | A kind of front-wheel directly drives rear-wheel steering bicycle |
-
2005
- 2005-11-17 CN CN 200520143129 patent/CN2835056Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941890A (en) * | 2012-11-06 | 2013-02-27 | 朱幕松 | Handrail backrest-type chain-free health-care bicycle |
| CN103552648A (en) * | 2013-10-29 | 2014-02-05 | 苏州市职业大学 | Bicycle |
| CN108674559A (en) * | 2018-07-05 | 2018-10-19 | 张家港川梭车业有限公司 | A kind of front-wheel directly drives rear-wheel steering bicycle |
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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: 20061108 Termination date: 20101117 |